Combined-type connecting device

A combined connector and expansion piece technology, applied in the direction of connecting components, pins, mechanical equipment, etc., can solve the problems of inconvenient connection, size error, large volume, etc., and achieve safe and reliable performance, reduced workload, and simple operation. Effect

Inactive Publication Date: 2011-04-20
XUANCHENG POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the installation and construction of the 35kV knife switch, it was found that the joint connection of the hoop-type installation and operating mechanism is very inconvenient, the volume is large, and the direction needs to be aligned. If it cannot be aligned at one time, friction, jamming, etc. will occur, and dimensional errors will easily occur

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0019] Example: Combine Figure 1-3 , the combined connector of this embodiment has:

[0020] The inner expansion taper mandrel 6 has a rounded truncated front end and an external thread on the rear end. A hexagonal nut 5 is matched and connected to this section of the external thread, and an internal expansion sheet fixing seat 3 is sleeved on the mandrel 6. One end surface of the fixed seat facing the front end of the mandrel 6 is provided with four outer grooves, and the four outer grooves are equally distributed along the circumference of the end surface of the fixed seat. Annular groove 9; four internal expansion sheets 1 are set, and the lower ends of the four internal expansion sheets are respectively inserted into the four outer grooves, and the inner surface of each internal expansion sheet and the mandrel is fitted. Conical surface; the taper of the conical surface is the same as the taper of the outer peripheral surface of the inverted truncated cone of the mandrel...

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PUM

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Abstract

The invention discloses a combined-type connecting device which is formed by welding a plurality of internal expanding connectors. Each internal expanding connector is provided with an internal expanding taper mandrel, the front end is in a frustum-cone shape, and the rear end is provided with a screw thread. The screw thread is connected with a hexagon nut, and the hexagon nut is rotated to push an internal-expanding-piece fixed seat and drive four internal expanding pieces to tightly expand in the inner chamber of a galvanized steel pipe. The combined-type connecting device can select a multiple-shaft connecting mode of a straight pipe, three shafts, four shafts and the like and can be widely applied to connection occasions, such as connection of power isolating switches, tent setting, scaffolds for engineering construction, scaffolds for brick layers and line paying off and the like. Compared with the traditional connecting mode, the invention has the advantages of quickness, convenience, cot saving and the like.

Description

Technical field: [0001] The invention relates to a combined connector, specifically a combined internal expansion joint, which can be widely used in the connection of power steel towers and disconnectors, tent construction for emergency rescue and disaster relief, river crossing, railways and bridges Various connection occasions such as construction frames for engineering construction, scaffolding for bricklayers, and line laying out. Background technique: [0002] During the installation and construction of the 35kV knife switch, it was found that the joint connection of the hoop-type installation and operating mechanism is very inconvenient, the volume is large, and the direction needs to be aligned. If it cannot be aligned at one time, friction, jamming, etc. will occur, and dimensional errors will easily occur. The installation of the grounding switch requires welding, and hot work tickets must be handled in the substation. Invention content: [0003] In order to over...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B13/10
Inventor 徐宁
Owner XUANCHENG POWER SUPPLY COMPANY OF STATE GRID ANHUI ELECTRIC POWER
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