Anti-disassembly type pipe joint assembly and air conditioner
A technology of pipe joints and components, applied in the direction of pipe/pipe joint/pipe fitting, connection through components, sealing surface, etc., can solve problems such as refrigerant leakage
Active Publication Date: 2019-03-01
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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Problems solved by technology
[0002] At present, pipe joints and union nuts are used to connect the evaporator and connecting pipes inside the room of common working fluid split-type air conditioners. The existing pipe joints are generally integrated pipe joints, which are mainly composed of threaded sections and prism surfaces. When a clockwise torque is applied to the prism surface section, the threaded section and the prism surface section rotate together to fit closely with the union nut. However, when a counterclockwise torque is applied to the prism surface section, the thread section is also driven to rotate together, so It will loosen the fit with the union nut, so there is a possibility of detachment, but it cannot meet the requirement that detachable joints are not allowed in the interior of the air conditioner using flammable refrigerants, and the connection between the pipe joint and the union nut is loose. , will lead to refrigerant leakage, failing to meet assembly standards and safety requirements
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0036] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0037] In addition, if there are descriptions involving "first", "second" and ...
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The invention discloses an anti-disassembly type pipe joint assembly and an air conditioner. The anti-disassembly type pipe joint assembly comprises a pipe joint body, a connecting pipe nut assembly and an anti-reversal clamping cap, wherein one end of the pipe joint body is a threaded end, a limiting piece is arranged in the middle of the pipe joint body, and a first wedge-shaped tooth extendingin the circumferential direction is arranged on the side face, deviating from the threaded end, of the limiting piece; the connecting pipe nut assembly comprises a connecting pipe and a connecting pipe nut connected with the connecting pipe; the anti-reversal clamping cap is provided with an accommodating groove, a through hole is formed in the bottom of the accommodating groove, a second wedge-shaped tooth matched with the first wedge-shaped tooth is formed on the side wall of the accommodating groove, the anti-reversal clamping cap is connected with the connecting pipe nut; the first wedge-shaped tooth is meshed with the second wedge-shaped tooth to enable the connecting pipe nut to be in linkage with the pipe joint when the connecting pipe nut rotates reversely. According to the anti-disassembly type pipe joint assembly, the disassembly prevention of the pipe joint body and the connecting pipe nut is realized.
Description
technical field [0001] The invention relates to the field of air conditioners, in particular to an anti-disassembly pipe joint assembly and an air conditioner. Background technique [0002] At present, pipe joints and union nuts are used to connect the evaporator and connecting pipes inside the room of common working fluid split-type air conditioners. The existing pipe joints are generally integrated pipe joints, which are mainly composed of threaded sections and prism surfaces. When a clockwise torque is applied to the prism surface section, the threaded section and the prism surface section rotate together to fit closely with the union nut. However, when a counterclockwise torque is applied to the prism surface section, the thread section is also driven to rotate together, so It will loosen the fit with the union nut, so there is a possibility of detachment, but it cannot meet the requirement that detachable joints are not allowed in the interior of the air conditioner usi...
Claims
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IPC IPC(8): F16L19/028
CPCF16L19/028
Inventor 钟志尧
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD