Inward recess-proof capillary tube

A technology of capillary and anti-detachment groove, which is applied in the direction of fluid circulation arrangements, refrigeration components, refrigerators, etc., and can solve problems such as capillary tube wall invagination and capillary breakage

Inactive Publication Date: 2013-01-09
泰州市海陵区欧菱自动化设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when such a capillary is connected, the port of the capillary is located inside other connecting parts, so the capillary wall is prone to invagination, and then the capillary is broken.

Method used

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  • Inward recess-proof capillary tube

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Embodiment Construction

[0011] The following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.

[0012] Examples, see figure 1 As shown: the anti-sag capillary tube includes a body 10, and an anti-falling groove 12 is provided on the inner side of the port of the body 10. In this way, when two capillary tubes are connected, they can be connected by putting the end of the capillary tube on the outside of one connecting short tube. Obviously, the anti-detachment groove 12 prevents the capillary from being disengaged from the connecting short tube.

[0013] Optimally, the cross-section of the anti-loosening groove 12 is arc-shaped. Such anti-loosening groove 12 is easy to prepare, for example, it can be formed by pressing after being supported by an abrasive tool.

[0014] Further, the port portion of the main body 10 is provided with an outer flaring opening 11 , and the anti-loosening groove 12 is located ...

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PUM

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Abstract

The invention discloses an inward recess-proof capillary tube which comprises a body, wherein an anti-detachment groove is arranged on the internal surface of a port part of the body. Preferably, the cross section of the anti-detachment groove is in the shape of a circular arc; and the port part of the body is provided with an outward expansion opening, and the anti-detachment groove is formed on the internal surface of the outward expansion opening. The inward recess-proof capillary tube provided by the invention has the advantage that the port does not recess inward during connection.

Description

technical field [0001] The invention relates to the technical field of air-conditioning components, in particular to an anti-sag capillary. Background technique [0002] Capillary is an important part of air conditioning regulation and pressure reduction. The capillary can be made of a copper tube with a diameter not exceeding 6mm, or it can be made of other materials. Their common feature is that the wall is thin (generally no more than 0.9mm), and when connecting two sections of capillary, it is mostly done by welding. However, in the process of welding the capillary, it is easy to cause the port of the capillary to be blocked or burned out. For this reason, the inventors have avoided the situation that the capillary must be welded when connecting the capillary by increasing the wall thickness of the port of the capillary and setting an anti-off step on the outer surface of the port, so that the capillary port will not be blocked. However, when such a capillary is conne...

Claims

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Application Information

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IPC IPC(8): F25B41/06
Inventor 顾仁华
Owner 泰州市海陵区欧菱自动化设备有限公司
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