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Simplex sleeve expansion joint

A technology of expansion joints and sleeves, applied in the field of expansion joints, can solve the problems of shortening the service life, reducing the performance, poor sealing, etc., and achieving the effect of prolonging the service life, improving the performance and improving the sealing.

Inactive Publication Date: 2013-06-19
江苏星光波纹管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the many functions of the existing expansion joints, the structure is complicated, the manufacturing process is cumbersome, the manufacturing cost is high, and the sealing is poor, which reduces the performance and shortens the service life.

Method used

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  • Simplex sleeve expansion joint

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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0012] Such as figure 1 As shown, the single sleeve expansion joint includes an outer sleeve 1 and a moving tube 2, the outer layer of the moving tube 2 is sleeved with the outer sleeve 1, and the outer wall of the moving tube 2 and the inner wall of the outer sleeve 1 A sealing groove 3 is formed between them, and the sealing filler is filled in the sealing groove 3; in this embodiment, the sealing filler is filled in the sealing groove between the moving tube and the outer casing, so that when the moving tube moves freely in the outer casing, the expansion and contraction is also ensured. The sealing effect of the joint, thereby improving the performance of the expansion joint.

[0013] The sealing packing is graphite sealing packing, and the service life of the expansion joint can be prolonged because the graphite sealing packing has the characteristics o...

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Abstract

The invention relates to the technical field of expansion joints, in particular to a simplex sleeve expansion joint. The simplex sleeve expansion joint comprises an outer casing tube and a movable tube. The outer layer of the movable tube is sleeved with the outer casing tube. A seal groove is formed between the outer wall of the movable tube and the inner wall of the outer casing tube. Gland packing is filled into the seal groove. The seal groove is formed between the outer wall of the movable tube and the inner wall of the outer casing tube, and the gland packing is filled into the seal groove. According to the simplex sleeve expansion joint, sealing of the expansion joint is further improved through the gland packing, and therefore use performance of expansion is improved, and service life of the simplex sleeve expansion joint is prolonged. Besides, the simplex sleeve expansion joint has the advantages of being simple in structure, low in manufacturing cost and the like.

Description

technical field [0001] The invention relates to the technical field of expansion joints, in particular to a single sleeve expansion joint. Background technique [0002] Expansion joints are also called pipe expansion joints, expansion joints, compensators or expanders. On pressure steel pipes, there are pipe sections that can freely expand and contract, micro angular displacement and good sealing performance, and are used to adapt to the steel pipe due to the temperature. Displacement and angular displacement due to uneven subsidence of buildings, etc., and facilitates the installation of steel pipes. However, due to the many functions of the existing expansion joints, the structure is complex, the manufacturing process is cumbersome, the manufacturing cost is high, and the sealing performance is poor, which reduces the performance and shortens the service life. Contents of the invention [0003] The purpose of the present invention is to provide a single sleeve expansion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L27/12
Inventor 李文霞
Owner 江苏星光波纹管有限公司
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