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Self-tapping adapter for mounting rod sensors on pressure vessels

A technology for pressure vessels and conversion joints, applied in the direction of connecting components, threaded fasteners, pins, etc., can solve the problems of not being able to use on the same day, detection failure, improper welding methods, etc., and achieve convenient installation and disassembly, good sealing effect, and ready-to-use short time effect

Active Publication Date: 2018-06-29
中检西部检测有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when detecting the emission of evaporative pollutants from motor vehicle fuel, it is necessary to install a temperature sensor for real-time monitoring inside the fuel tank and closed container during the detection, and the fuel tank and closed container are mostly welded conversion joints directly on the vehicle. The methods of bonding sensors with oil-resistant adhesives all have high cost of preparation and installation before the test and long cycle time, improper welding methods are likely to cause fire and explosion safety accidents, the bonding method is easy to leak air, and installation and operation are inconvenient. Defects such as the use of the day
But the problem is that the welding and bonding method is easy to leak air, which will cause the detection failure, double the test cost and prolong the detection time, and affect the normal test and detection and measurement work. Therefore, it is urgent to abandon the existing fuel tanks and closed containers. The installation method with fuel welding and oil-resistant glue avoids defects such as potential safety hazards and insufficient tests

Method used

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  • Self-tapping adapter for mounting rod sensors on pressure vessels
  • Self-tapping adapter for mounting rod sensors on pressure vessels
  • Self-tapping adapter for mounting rod sensors on pressure vessels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 and figure 2 A self-tapping adapter for installing a rod sensor on a pressure vessel is shown, including a self-tapping joint 6 for installation in a test hole 8-1 of a pressure vessel 8, the self-tapping joint 6 includes a self-tapping screw 6-1 for matching with the wall of the test hole 8-1 and a drive head 6-2 for driving the self-tapping screw 6-1 to rotate, the self-tapping The screw 6-1 is connected with the driving head 6-2, and the self-tapping screw 6-1 and the driving head 6-2 are both provided with through holes for the rod sensor 1 to pass through.

[0035] In this embodiment, when the self-tapping conversion joint is in use, the driving head 6-2 is rotated to drive the self-tapping screw 6-1 to rotate and cooperate with the hole wall of the test hole 8-1 of the pressure vessel 8. The hole wall of the test hole 8-1 is self-tapping to match the thread of the self-tapping screw 6-1, so as to realize the connection between the self-tapping joi...

Embodiment 2

[0053] like image 3 and Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the driving head 6-2 is connected to the pressure cap 2 through a connecting head 9, and the connecting head 9 is arranged on the driving head 6-2. The upper end of the connecting head 9 is provided with a mounting hole communicating with the through hole on the driving head 6-2, and the outer wall of the connecting head 9 is provided with an external thread for connecting with the pressure cap 2.

[0054] In this embodiment, the fast connection between the driving head 6-2 and the pressure cap 2 can be realized by setting the connecting head 9. The connecting head 9 can be integrally formed on the upper end of the driving head 6-2, or can be Through the threaded connection between the external thread of the connector 9 and the internal thread of the through hole wall of the drive head 6-2, an installation hole is provided on the connector 9, which can facilitate the r...

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Abstract

The invention discloses a self-tapping-type adapter used for assembling a rod-type sensor on a pressure vessel. The self-tapping-type adapter comprises a self-tapping-type connector which is arranged in a detection hole in the pressure vessel; the self-tapping-type connector comprises a self-tapping-type screw which is matched with the hole wall of the detection hole and a driving head which is used for driving the self-tapping-type screw to rotate; the self-tapping-type screw is connected with the driving head; and the self-tapping-type screw and the driving head are separately provided with a through hole through which the rod-type sensor can penetrate. A self-tapping-type mechanical connection mode is adopted by the self-tapping-type adapter, so that effective connection between the self-tapping-type adapter and the pressure vessel is realized; and safety accidents caused by a welding mode under a state that fuel oil exists in the pressure vessel is avoided, and failure of detection experiments caused by the fact that the time period is long or adhesion is not firm when a adhesion method is adopted is avoided. The connection mode is short in preparation time, and the self-tapping-type adapter can be repeatedly utilized.

Description

technical field [0001] The invention belongs to the technical field of installing a rod sensor on a pressure vessel, and in particular relates to a self-tapping conversion joint for installing a rod sensor on a pressure vessel. Background technique [0002] Motor vehicle fuel evaporative pollutant emission limits are a mandatory indicator for evaluating vehicle performance. Among them, GB20998-2007 Motorcycle and Moped Fuel Evaporative Pollutant Emission Limits and Measurement Methods: It is to implement the "Environmental Protection Law of the People's Republic of China" and the "Law of the People's Republic of China on Air Pollution Prevention and Control" to control motorcycles and mopeds. Environmental pollution caused by vehicle fuel evaporation pollutants, environmental protection, and energy conservation are formulated in this standard. This standard stipulates the type approval, production consistency inspection requirements and judgment methods of motorcycle and mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B13/04F16B25/00
CPCF16B13/04F16B25/0094
Inventor 陈祖福马天明王臻王伟刘亚鸿毛文刚
Owner 中检西部检测有限公司