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Anti-detonation dual-wedge-surface self-locking cable sealing method

A cable sealing and wedge surface technology, applied in the direction of cable entry sealing device, cable accessories, cable installation, etc., can solve the problem of blasting and leakage of the detonating cable, achieve low cost, simple processing technology, and ensure the effect of tightening and sealing

Inactive Publication Date: 2019-07-09
63653 FORCES PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using fireproof blockage, explosion-proof mastic, sealant pouring or even cement direct sealing, the detonating cable is very easy to be knocked out under the action of strong explosion shock wave due to insufficient locking force, resulting in leakage

Method used

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  • Anti-detonation dual-wedge-surface self-locking cable sealing method
  • Anti-detonation dual-wedge-surface self-locking cable sealing method

Examples

Experimental program
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Effect test

Embodiment Construction

[0009] Such as figure 1 As shown, the self-tightening body is a hollow structure with wedge surfaces at the front and rear ends. When the cable passes through the self-tightening body, the lock nut is tightened and contacts the rear end wedge surface of the self-tightening body through the wedge surface of the spacer, and the The front wedge surface is pressed into the wedge surface cavity of the self-tightening section, and as the self-tightening body is pressed into its two ends, the wedge surface clamps the cable and fills the airtight material filling section with soft clay airtight material. After the explosion, on the one hand, the shock wave presses the airtight material into the inner cavity of the self-tightening section to ensure the sealing; on the other hand, if the cable moves outward under the action of the impact force, it will drive the wedge surface at the other end of the self-tightening body to compress the cable again, A tight seal is achieved.

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Abstract

The invention belongs to the technical field of sealing designing for detonation cables for closed containers, and provides an anti-detonation dual-wedge-surface self-locking cable sealing method. Themethod is characterized in that a cable is sealed through self-locking, wherein a self-locking body is a hollow structure, of which the front end and the back end are respectively provided with wedgesurfaces; after the cable penetrates the self-locking body, a locking nut is screwed, contacts the wedge surface at the back end of the self-locking body through a wedge surface of a cushion block, and presses the wedge surface at the front end of the self-locking body into a wedge surface cavity in a self-locking section; as the two ends of the self-locking body are pressed, the cable is clampedby the wedge surfaces; and an airtight material filling section is filled with an oozy airtight material. The method provided by the invention has the advantages that the cable is clamped and sealedthrough the dual-wedge-surface self-locking body structure, and the oozy material is used as an airtight filling material, so that firm sealing of the cable after a detonation can be effectively ensured, and a gas in a closed container can be further prevented from being leaked out through the detonation cable after the detonation; and the operability is high, the processing process is simple, thecost is low, and sealing requirements for the detonation cable during a detonation experiment can be met.

Description

technical field [0001] The patent of the invention belongs to the technical field of sealing design of detonating cables for airtight containers, and is mainly used to prevent the gas in the airtight container from leaking through the detonating cables after explosion. Background technique [0002] In blasting engineering, cable seals are traditionally sealed with fireproof blockage, explosion-proof mastic, sealant pouring or even cement. Using fireproof blockage, explosion-proof cement, sealant pouring or even direct sealing with cement, the detonating cable is easily knocked out under the action of a strong explosion shock wave due to insufficient locking force, resulting in leakage. Contents of the invention [0003] Purpose of the invention: the invention patent is mainly used to prevent the gas in the airtight container from leaking out through the detonating cable after the explosion. [0004] Technical solution: The cable is sealed by self-locking: the self-tighten...

Claims

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Application Information

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IPC IPC(8): H02G15/013H02G15/00
CPCH02G15/003H02G15/013
Inventor 不公告发明人
Owner 63653 FORCES PLA
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