CN2727529Y

CN2727529Y - Reusable end curved surface seal joint

Info

Publication number: CN2727529Y
Application number: CN 200420082665
Authority: CN
Inventors: 闻长庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-08
Filing date: 2004-09-08
Publication date: 2005-09-21
Anticipated expiration: 2014-09-08

Abstract

The utility model discloses a reusable end curved surface seal joint used for connecting an indoor machine and an outdoor machine of a splitting air conditioner in butt joint, comprising copper pipes respectively connected with the indoor machine and the outdoor machine, and a pipe nipple and a pipe joint respectively connected with every copper pipe and connected integrally in butt joint by a traveling nut. A vulcanized valve pocket, a carrier rod and a spring are arranged in the pipe nipple. An end curved surface sealing ring on the upper end of the vulcanized valve pocket and a concave circular arc on the carrier rod form a dual self-sealing state of the radial direction and the end face. A valve core, a spring, and a scapular-shaped plane sealing ring are arranged in the pipe joint and formed as an end curved surface self-sealing state. At the same time, the front of the pipe joint is provided with a boss with both ends communicated and a clamping ring which realizes the hard sealing state after the butt joint. Because the end curved surface seal is adopted in the utility model, the indoor machine and the outdoor machine can independently store refrigerant agents without leakage. The butt joint and the circulation are quick. The mounting process is simple. The purity of the refrigerant agent in the system can be ensured. A user can move and mount the reusable end curved surface seal joint by himself. The reusable end curved surface seal joint is particularly suitable for removable splitting air conditioners.

Description

Reusable End Curved Surface Seal Joint

Technical field

The utility model relates to the jointing of the portable indoor split-type air conditioner of a kind of refrigeration product, outdoor unit, especially connects indoor set, the outdoor unit of independent storage refrigeration agent and the end curved surface SEALING FITTING that can repeatedly dismantle, connect.

Background technique

The refrigeration product indoor split-type air conditioner is connected by stop valve with the circulation of outdoor unit refrigeration agent at present, this kind linkage structure is a storing refrigerant simultaneously to the requirement of indoor set and outdoor unit, be that indoor set is not with refrigeration agent, after split-type air conditioner installs, at first indoor set is carried out emptying, connect by stop valve then, reach indoor set and circulate mutually with the interior refrigeration agent of outdoor unit, its defective is: 1. mounting process complexity, and higher to assembler's technical requirements; 2. the indoor set emptying is difficult to guarantee to connect the pure property of back system inner refrigerant not to the utmost; 3. careless movable air conditioner after installing should not be used for the connection of portable split-type air conditioner machine.

Summary of the invention

Technical problem to be solved in the utility model all provide in the defective that overcomes prior art a kind of mounting process simple, guarantee indoor set and can independent storing refrigerant before outdoor unit be not connected and sealing without leakage, butt joint after can reach connected state rapidly, guarantee that system's inner refrigerant is pure, can break away from whenever and wherever possible and reach independent sealed, can make Reusable End Curved Surface Seal Joint indoor, that outdoor unit is conveniently mobile.

Goal of the invention of the present utility model is finished by the following technical programs:

A kind of Reusable End Curved Surface Seal Joint, it comprises in the difference junction chamber, the copper pipe of outdoor unit, pipe nipple and the pipe joint that is connected with the two ends copper pipe respectively, traveling nut one end can relatively rotate but non-dismountable the connection with pipe nipple, the other end is connected with the pipe joint screw thread is detachable, the rear portion that it is characterized in that described pipe nipple and its fluting is an integrated type, its front portion is provided with the sulfuration valve pocket that is tightly connected, push rod directly is fixed on the pipe nipple by primary nut, there is recessed annulus the push rod end, push rod spring on it acts on the sulfuration valve pocket, and the end curved surface seal ring on it is contacted with the push rod concave circular arc, formation radially with the dual selfsealings of end face; Be provided with in the described pipe joint by the supporting members support of many ribs structure and by the spool of valve core spring pushing tow, the spool front portion is embedded with omoplate shape planar seal ring, shoulder surface forms the end curved surface selfsealings in sealing circle and the pipe joint, and the front portion of pipe joint also is provided with conflict realizes two ends refrigeration agent circulation on the sulfuration valve pocket boss.

Also be embedded with trim ring on the described pipe joint front-end face, this trim ring by close-fitting in the annular groove of pipe joint end.

The supporting member of described spool two ends many ribs structure is four rib circles of flowing lumen inner refrigerant and the triangular circle of being located by the copper pipe kerve.

The relatively rotating but non-dismountablely be connected to reducing and be connected of described traveling nut and pipe nipple with annular groove.

Compared with prior art, the utility model has adopted the end curved surface seal approach, make two-part of joint can both guarantee indoor split-type air conditioner, outdoor unit independence storing refrigerant and do not leak, can reach circulation status rapidly after the butt joint, therefore its assembly technology is simple, do not require high-level assembler, need not carry out emptying before the connection, it is pure to guarantee to connect back system inner refrigerant, because indoor, the independent separately storing refrigerant of outdoor unit is sealing without leakage separately again, the user can move installation voluntarily, is specially adapted to portable split-type air conditioner machine.

Description of drawings

Accompanying drawing 1 has provided the utility model vertical section structure schematic representation (the two ends refrigeration agent does not circulate, selfsealings state).

Embodiment

Embodiment is described in further detail the utility model again below with reference to accompanying drawing.

Referring to Fig. 1, Reusable End Curved Surface Seal Joint comprises the

copper pipe

1,13 that connects indoor set and outdoor unit respectively, the pipe nipple 4 and the pipe joint 10 of fixed with the two ends copper pipe respectively or screw thread releasable connection by the metal plate solid welding, traveling nut 5 one ends form with annular groove by reducing with pipe nipple 4 and can relatively rotate but non-dismountable the connection, annular groove is directly processed on pipe nipple, and the reducing of traveling nut utilizes the deformation characteristic of material to make in its annular groove that is buckled in pipe nipple by special-purpose reducing instrument.The other end of traveling nut is connected with the pipe joint screw thread is detachable.

Pipe nipple 4 is a monolithic construction with the rear portion 20 of its fluting, the negotiable refrigeration agent of purpose of fluting, monolithic construction machining accuracy height, coaxality is good, make the push rod 19 that directly is fixed in the pipe nipple rear portion by primary nut 2 have installation quality preferably, there is recessed annulus the push rod end, the sulfuration valve pocket 7 that is sleeved on 3 pairs of bands of push rod spring " O " RunddichtringO 6 on the push rod has a precompression, sulfuration valve pocket front portion is close in push rod 19 concave circular arcs by the end curved surface seal ring 18 that sulfuration process connects one, form radially the double seal with end face, guarantee that the refrigeration agent in the pipe nipple be not in not leak condition of selfsealings before the circulation.

Be provided with spool 15 in the pipe joint 10 by the supporting of many ribs structural support member, as four rib circles 16 of front portion, the triangular circle 12 at rear portion, many ribs structure is spline type, guarantee the refrigeration agent circulation, four rib circles of symplex structure make the valve core spring on the spool produce precompression to it, to realizing that selfsealings have played good leading role, guarantee self-packing stability; Triangular circle 12 makes valve core spring 11 produce precompression by 14 location of the kerve on the copper pipe.Be embedded with omoplate shape planar seal ring 17 in the spool 15 anterior annular grooves, form the end curved surface selfsealings with shoulder surface in the pipe joint 10.Also be provided with conflict simultaneously in pipe joint 10 front portions and realize the round ring boss 9 of two ends refrigeration agent circulation and be embedded with the trim ring 8 of close-fitting in the annular groove of end at sulfuration valve pocket end curved surface seal ring 18, the effect of trim ring is to guarantee that pipe joint 10 docks the back that puts in place and plays hard seal action with pipe nipple 4.Joint with self-sealing function can be connected with indoor set, the outdoor unit of storing refrigerant separately, guarantees sealing without leakage separately.

Desire to think that split-type air conditioner indoor set, outdoor unit butt joint reach the refrigeration agent circulation, as long as with traveling nut 5 on pipe joint 10 spinnings, when pipe joint to left direction move dock with pipe nipple 4 put in place after, the trim ring 8 of pipe joint end just contacts with the pipe nipple end face and has reached hard seal action.This moment pipe joint 10 both opened with the combining of omoplate shape planar seal ring 17 (because of spool, omoplate shape planar seal ring motionless), the end curved surface seal ring 18 that is backed down on the sulfuration valve pocket by the round ring boss on it 9 breaks away from push rod 19 circular cone sealing surfaces again, the inner chamber refrigeration agent of two joints is promptly circulated, sealing after the circulation is that trim ring 8 has played the auxiliary seal effect by the tightly applying of " O " RunddichtringO 6 and boss 9 and end curved surface seal ring 18.

This end curved surface SEALING FITTING can repeatedly be dismantled as required, connect, and the user can remove and install voluntarily by the variation of use position, and the butt joint that is specially adapted to mobile split type indoor set and outdoor unit is connected.The utility model also is applicable to the connection sealing of other working medium.

Claims

1, a kind of Reusable End Curved Surface Seal Joint, it comprises in the difference junction chamber, the copper pipe of outdoor unit, pipe nipple (4) that is connected with the two ends copper pipe respectively and pipe joint (10), traveling nut (5) one ends can relatively rotate but non-dismountable the connection with pipe nipple (4), the other end and pipe joint (10) the detachable connection of screw thread, it is characterized in that the described pipe nipple (4) and the rear portion (20) of its fluting are integrated type, its front portion is provided with the sulfuration valve pocket (7) that is tightly connected, push rod (19) directly is fixed on the pipe nipple by primary nut (2), there is recessed annulus the push rod end, push rod spring on it (3) acts on the sulfuration valve pocket (7), end curved surface seal ring (18) on it is contacted with push rod (19) concave circular arc, form radially dual selfsealings with end face; Be provided with in the described pipe joint (10) by the supporting members support of many ribs structure and by the spool (15) of valve core spring (11) pushing tow, the spool front portion is embedded with omoplate shape planar seal ring (17), the interior shoulder surface of sealing circle and pipe joint (10) forms the end curved surface selfsealings, and the front portion of pipe joint (10) also is provided with conflict and goes up the boss (9) of realizing two ends refrigeration agent circulation at sulfuration valve pocket (7).

2, Reusable End Curved Surface Seal Joint according to claim 1 is characterized in that also being embedded with trim ring (8) on described pipe joint (10) front-end face, this trim ring by close-fitting in the annular groove of pipe joint end.

3, Reusable End Curved Surface Seal Joint according to claim 1 and 2, the supporting member that it is characterized in that described spool (15) two ends many ribs structure are four rib circles (16) of flowing lumen inner refrigerant and the triangular circle (12) of being located by copper pipe kerve (14).

4, Reusable End Curved Surface Seal Joint according to claim 1 and 2 is characterized in that relatively rotating but non-dismountablely being connected to reducing and being connected with annular groove of described traveling nut (5) and pipe nipple (4).