CN100351569C

CN100351569C - Duplex expansion buckle type self locking quick connector

Info

Publication number: CN100351569C
Application number: CNB2005100237681A
Authority: CN
Inventors: 闻长庆; 张忠东
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-02-01
Filing date: 2005-02-01
Publication date: 2007-11-28
Anticipated expiration: 2025-02-01
Also published as: CN1648511A

Abstract

The present invention relates to a fast twofold-gang expansion buckling self-locking joint. Connection and communication mechanisms of a twofold-gang symmetrical structure are arranged in a casing and a fixed seat. Each of the mechanisms comprises a pair of female connectors and a pair of tube spigot joints for connecting a high voltage tube and a low voltage tube of an indoor unit, and a pair of copper tubes and a pair of tube joints for connecting a high voltage tube and a low voltage tube of an outdoor unit, wherein push rod components are arranged in the female connectors and the tube spigot joints; the female connectors are supported on a support plate positioned by a retainer ring; a spring is arranged on the other side of the support plate; valve core components are arranged in the copper tubes and the tube joints. The mechanisms can connect and communicate the indoor unit and the outdoor unit through a swing arm spanner mechanism arranged on the casing, and can realize communicate and lock the indoor unit and the outdoor unit through rolling ball or rolling needle check locking mechanisms arranged on the tube spigot joints and the tube joints. The connection of the indoor unit and the outdoor unit is quick and reliable, and connection and communication are completed once so that the action is simple and practical. After connection or disconnection, self-sealing and no leaking can be achieved so that installation procedures are simplified, and installation efficiency is improved. Installation people are not required specially, and users can move and install the present invention independently according to needs.

Description

Duplex expansion buckle type self locking quick connector

Technical field

The present invention relates to a kind of fast connecting joint of refrigeration product indoor split-type air conditioner, outdoor unit, especially connect and store indoor set, the outdoor unit of working medium simultaneously and can repeatedly dismantle, connect and can guarantee a kind of joint that refrigeration agent does not leak.

Background technique

Its indoor set of detachable air conditioner in the refrigeration product is connected by stop valve with outdoor unit at present, this Placement is a store refrigerant simultaneously to the requirement of indoor set and outdoor unit, therefore present present situation is the outdoor unit store refrigerant, indoor set is store refrigerant not, this carries out emptying to indoor set earlier with regard to wanting when mounted, connect by stop valve then and reach indoor, the refrigeration agent circulation of outdoor unit, its defective be the indoor set emptying not to the utmost, be difficult to the pure property that two machines that guarantee connect back system inner refrigerant, and the refrigeration agent befouling environment of discharging, waste energy, for this reason, this case claimant has applied for that application number is 200420082664.9 and 200420082665.3 utility model patent, solved indoor set, outdoor unit is the problem that connects of store refrigerant simultaneously, but because the high-voltage tube that is connected with of split-type air conditioner indoor set and outdoor unit is connected with low-voltage tube and is connected, the complexity that the independent at twice connection of two pipes still keeps away unavoidable mounting process, installation efficiency is also very low, and is higher to assembler's technical requirements.

Summary of the invention

Goal of the invention of the present invention all provides a kind of duplex expansion buckle type self locking quick connector of realizing indoor apparatus of air conditioner, the disposable successful installation of the high and low pressure pipe of outdoor unit in the defective that overcomes prior art, to simplify mounting process, improve installation efficiency, and installation personnel is not had specific (special) requirements.

Goal of the invention of the present invention realizes by following technical proposal: a kind of duplex expansion buckle type self locking quick connector, it comprises interconnected female connector and pipe nipple, copper pipe and the pipe joint that connects indoor apparatus of air conditioner, outdoor unit respectively, pipe nipple docks with pipe seal, be provided with post rod parts in described female connector and the pipe nipple, it comprises the push rod that links to each other with pipe nipple, pushing tow is in the push rod spring of sulfuration on the valve seat, contact with the push rod conical surface formation radially with the end-face seal ring of end face double seal; Be provided with valve hole part in described copper pipe and the pipe joint, it comprises the spool by last many ribs circle, following many ribs circle supporting, promote the valve core spring of spool, the briquetting that is connected with spool, connect and the conical surface seal circle and the pipe joint of location form conical surface contact seal by spool, briquetting, it is characterized in that described female connector is a pair of female connector of indoor set high-voltage tube and the female connector of indoor set low-voltage tube of connecting respectively, they are bearing in by back-up ring and do on the supporting plate of axially locating, and in the opposite side effect of supporting plate spring are arranged; Described copper pipe is a pair of copper pipe of outdoor unit high-voltage tube and the copper pipe of outdoor unit low-voltage tube of connecting respectively; Described pipe nipple, pipe joint are identical a pair of of structure; The valve hole part that is located at the post rod parts in female connector, the pipe nipple and is located in copper pipe, the pipe joint is a pair of identical structure, constitutes the mechanism that connects of duplex symplex structure; This connects mechanism and divides and to be located in the fixing fixed base of an overcoat and and outdoor unit, and described outer putting is provided with the rocking arm spanner mechanism that promotes overcoat connection indoor unit and outdoor unit; Described pipe nipple and pipe joint are provided with the safety lock mechanism of locking indoor unit and outdoor unit connected state.

Described rocking arm spanner mechanism comprises the rocking arm spanner of structure on two sides symmetry, the inboard, both sides of rocking arm spanner be respectively equipped with by rivet all the time with the contacted cam of supporting plate, the rocking arm spanner of both sides and cam again on the coat by the bearing pin riveted joint, and latch.

Described safety lock mechanism comprises that described pipe nipple outer surface is the multidiameter shaft structure, by the conical surface transition; Be provided with between it and the pipe joint and overcoat omoplate location and fixing locking bed, locking bed is provided with several locking elements, the corresponding groove that slips into for locking element that is provided with on pipe joint.

Described safety lock mechanism is a ball lock, and its locking bed is a ball base, and locking element is a ball, and the ball base radial equipartition has 6 conical ball through holes, and 6 balls are arranged in the ball through hole, the corresponding trapezoidal inner groove that slips into for ball that is provided with on pipe joint.

Described safety lock mechanism is the needle roller locking, its locking bed is the needle roller seat, and locking element is a needle roller, and the needle roller seat respectively is provided with 1 needle roller groove on endoporus two opposites, 2 needle roller branches are located in 2 needle roller grooves, corresponding on pipe joint, be provided with for needle roller slip into trapezoidal in straight trough.

One side of described overcoat and fixed cover is respectively equipped with directed boss and the recess of installing.

Compared with prior art, the present invention has adopted the fast connecting joint of duplex structure, neither influencing indoor split-type air conditioner and outdoor unit can independent store refrigerant before not being connected and do not leak, simultaneously in connecting the air conditioning chamber, the height of outer machine, during low pressure line, can fast once finish reliably simultaneously by rocking arm spanner mechanism and to connect, and realize the locking connect by safety lock mechanism, connecting moves is simple, indoor, after connecting, outer machine connection or disengaging can both reach automatic sealing without leakage, simplified mounting process, improved installation efficiency, installation personnel is not had technical requirements, the user also can change the position at any time and move installation voluntarily.

Description of drawings

Fig. 1 is the embodiment of the invention 1 sectional structure schematic representation (indoor unit and outdoor unit its unaccessed state, ball lock insurance).

Fig. 2 looks outline drawing for the left side of Fig. 1.

Fig. 3 is the embodiment of the invention 2 sectional structure schematic representation (indoor unit and outdoor unit its unaccessed state, needle roller locking insurances).

Fig. 4 looks outline drawing for the left side of Fig. 3.

Fig. 5 is the overcoat three-dimensional structure diagram.

Fig. 6 is the fixed base three-dimensional structure diagram.

Fig. 7 is the connection diagram of rocking arm spanner and cam.

Fig. 8 is the pipe joint stereogram of needle roller safety lock mechanism.

Fig. 9 is the pipe joint sectional view of needle roller safety lock mechanism.

Figure 10 is a needle roller seat stereogram.

Figure 11 is a needle roller seat sectional view.

Embodiment

Embodiment is described in detail the present invention again below with reference to accompanying drawing.

As Fig. 1～shown in Figure 11, duplex expansion buckle type self locking quick connector comprises an overcoat 12 that connects indoor set and outdoor unit respectively and is fixed on a fixed base 18 on the outdoor unit, is provided with the mechanism that connects of duplex structure in overcoat and the fixed base.This mechanism promptly is provided with the female connector 14 of a pair of connection indoor set high-voltage tube and the female connector 28 of indoor set low-voltage tube in overcoat, they are bearing in by back-up ring 27 and do on the supporting plate 26 of axially locating, and between supporting plate and overcoat, be provided with spring 25, make supporting plate under the pre-pressure of the spring effect, return to initial position, a pair of

female connector

14,28 is threaded with a pair of pipe nipple 23 respectively again, and connection part seals with " O " RunddichtringO 13.The copper pipe 17 that a pair of copper pipe 1 that is connected with the outdoor unit high-voltage tube is connected with the outdoor unit low-voltage tube, respectively with pair of pipes joint 8 or 32 welding one, and the pair of pipes joint is located in the fixed base and fix by the riveting button.Pipe nipple, pipe joint are identical a pair of of structure, are undertaken pre-sealed by " O " RunddichtringO 20 when pipe nipple docks with pipe joint.

Be provided with the identical post rod parts of structure in described a pair of female connector and a pair of pipe nipple, post rod parts is included in and is provided with push rod 9 in the pipe nipple 23, pipe nipple and push rod are fastening by the primary nut 24 of afterbody, push rod is provided with push rod spring 22, by pushing tow after the push rod spring precompression, with the sulfuration valve pocket 19 of " O " RunddichtringO 21 sealing by forming radially double seal with end face with the end-face seal ring 31 of its bonding one and contacting of push rod 9 conical surfaces.

Be provided with the identical valve hole part of structure separately in described a pair of copper pipe and the pair of pipes joint, valve hole part comprises by upper and lower last many ribs circle 3 of Tong Guo the refrigeration agent of spline type, the spool 2 of following many ribs circle 5 supportings of being, wherein going up many ribs circle 3 is four rib circles for triangular circle, following many ribs circle 5, symplex structure as four rib circles makes the valve core spring on the spool produce precompression, to realizing that selfsealings have played good leading role, guarantee self-packing stability, the triangular circle makes valve core spring 4 produce precompression by the kerve location of copper pipe 1 and 17.The valve core spring 4 that promotes spool is sleeved on and is located on the spool between upper and lower many ribs circle, is provided with the briquetting 7 that is threaded in the spool, by spool, briquetting connects and the conical surface seal circle 6 of location forms conical surface contact seal with pipe joint 8 (or 32).

Described overcoat 12 is provided with and promotes the rocking arm spanner mechanism that overcoat is connected indoor unit and outdoor unit, this mechanism comprises the rocking arm spanner 16 of structure on two sides symmetry; the inboard, both sides of rocking arm spanner is respectively equipped with cam 29 (see figure 7)s by rivet 30 riveted joint; this cam contacts with supporting plate 26 all the time; the rocking arm spanner of both sides and cam are riveted on the overcoat 12 by bearing pin 15 again, and the rocking arm spanner can freely rotate but non-dismountable relative to overcoat.Rocking arm spanner mechanism also comprises outer night bolt (not shown) of joining.

Described pipe joint and pipe nipple are provided with the safety lock mechanism of locking indoor unit and outdoor unit connected state, pipe nipple 23 outer surfaces of this mechanism are the multidiameter shaft structure, by the conical surface transition, be provided with between it and the pipe joint 8 (or 32) and overcoat 12 omoplates location and fixing locking bed, its means of fixation can be to be threaded or to be buckled in the overcoat shoulder by the material deformation riveting to go up non-dismountable.Locking bed is provided with several locking elements, the corresponding groove that slips into for locking element that is provided with on pipe joint, the purpose of the conical step transition structure of pipe nipple outer surface are to guarantee can promote the outside spreading of locking element smoothly when mobile so that make locking element and pipe joint locks tensioner.

Fig. 1～Fig. 2 of the present invention is the joint of embodiment 1 ball safety lock mechanism, locking bed is a ball base 11, locking element is a ball 10, the ball base radial equipartition has 6 ball through holes, this ball through hole is a conical bore, the outside is little, inboard big, and 6 balls can enter conical bore and have an appointment 1/3 to overhanging but can not break away from this hole, the corresponding trapezoidal inner groove that slips into for ball that is provided with on pipe joint 8.

Fig. 3～Fig. 4, Fig. 8～Figure 11 are the joint of embodiment 2 needle roller safety lock mechanism, locking bed is a needle roller seat 33, locking element is a needle roller 34, the sectional shape of needle roller seat is: be square outward, four drift angle roundings, endoporus is the cydariform hole, two straight flanges in cydariform hole respectively have 1 needle roller groove 38, groove is wide to be interior big outer little, after 2 needle rollers enter the needle roller groove respectively, part is stretched out the outside but can not come off, corresponding pipe joint 32 sectional shapes are: inside and outsidely all be square, on pipe joint, be provided with for needle roller slip into trapezoidal in straight trough 37.The needle roller length of present embodiment is got 14mm, and trapezoidal interior straight trough 37 length of the needle roller groove 38 of needle roller seat and pipe joint are got 15mm.

High and low pressure pipe can wrong when docking with outdoor unit in order to ensure indoor set, is respectively equipped with directed boss 35 and the recess of installing 36 in a side of overcoat 12 and fixed base 18 and (sees that Fig. 5～Fig. 6), described boss 35 is the chock type.

Below will come further the understanding of the present invention by description to dynamic structure:

When needs carry out indoor set when being connected with outdoor unit, with the set recess 36 of the described wedge type positioning boss of overcoat 12 35 secured in alignment seats 18, together with the pipe joint 8 (or 32) on ball base 11 (or needle roller seat 33) the insertion fixed base of its safety lock mechanism on earth, ball 10 (or needle roller 34) on ball base this moment (or needle roller seat) and the trapezoidal inner groove on the pipe joint 8 (or 32) (or trapezoidal interior straight trough 37) are in alignment, pull rocking arm spanner 16, cam 29 on the spanner promotes supporting plate 26 together with a pair of female connector 14 that is positioned on the supporting plate, 28 and a pair of pipe nipple 23 move, conical surface on the pipe nipple is outwards pushed the ball (or needle roller) on the ball base (or needle roller seat) open, ball (or needle roller) buckles into the trapezoidal inner groove (or trapezoidal interior straight trough 37) in the pipe joint rapidly, make be connected to indoor, joint on the outer machine reaches the button state that rises, stable and firm, continue to pull the rocking arm spanner, push rod 9 on a pair of pipe nipple will back down the spool 2 in the pipe joint; rocking arm spanner 16 is pulled the locking that puts in place and realized by the night bolt of joining outward; be that latch is plugged in the hinge last of rocking arm spanner and fixed base (latch is an annex; not shown in the figures), thereby realized indoor; the connection of outer machine and connection.The connection that breaks away from indoor unit and outdoor unit as need, at first extract the insurance locating stud, pull open the rocking arm spanner to initial position, under the precompression effect of push rod spring and valve core spring, ball (or needle roller) promptly slips in the ball base (or needle roller seat) automatically, and the former button state that rises is removed, make a pair of pipe nipple and the pair of pipes joint that are connected in respectively on indoor set, the outdoor unit recover the selfsealings state, guarantee that refrigeration agent does not leak, supporting plate 26 returns to initial position under the precompression effect of spring 25, promptly pre-sealed state.

The present invention can repeatedly dismantle, connect, the user can be as required voluntarily the mobile position remove and install, also be applicable to other working medium.

Claims

1, a kind of duplex expansion buckle type self locking quick connector, it comprises interconnected female connector and pipe nipple (23), copper pipe and the pipe joint (8 that connects indoor apparatus of air conditioner, outdoor unit respectively, 32), pipe nipple docks with pipe seal, be provided with post rod parts in described female connector and the pipe nipple, it comprises the push rod (9) that links to each other with pipe nipple (23), the push rod spring (22) of pushing tow in sulfuration valve pocket (19), contact with the push rod conical surface formation radially with the end-face seal ring (31) of end face double seal; Be provided with valve hole part in described copper pipe and the pipe joint, it comprises by last many ribs circle (3), the spool (2) of following many ribs circle (5) supporting, promote the valve core spring (4) of spool, the briquetting that is connected with spool (7), by spool, briquetting connects and the conical surface seal circle (6) and pipe joint (8 of location, 32) form conical surface contact seal, it is characterized in that described female connector is a pair of female connector (14) of indoor set high-voltage tube and the female connector (28) of indoor set low-voltage tube of connecting respectively, they are bearing in by back-up ring (27) and do on the supporting plate (26) of axially locating, and in the opposite side effect of supporting plate spring (25) are arranged; Described copper pipe is a pair of copper pipe (1) of outdoor unit high-voltage tube and the copper pipe (17) of outdoor unit low-voltage tube of connecting respectively; Described pipe nipple, pipe joint are identical a pair of of structure; The valve hole part that is located at the post rod parts in female connector, the pipe nipple and is located in copper pipe, the pipe joint is a pair of identical structure, constitutes the mechanism that connects of duplex symplex structure; This connects mechanism and divides and to be located in the fixing fixed base (18) of an overcoat (12) and and outdoor unit, and described overcoat (12) is provided with the rocking arm spanner mechanism of promotion overcoat connection indoor unit and outdoor unit; Described pipe nipple (23) and pipe joint (8,32) are provided with the safety lock mechanism of locking indoor unit and outdoor unit connected state.

2, duplex expansion buckle type self locking quick connector according to claim 1, it is characterized in that described rocking arm spanner mechanism comprises the rocking arm spanner (16) of structure on two sides symmetry; the inboard, both sides of rocking arm spanner be respectively equipped with by rivet (30) riveted joint all the time with the contacted cam of supporting plate (26) (29); the rocking arm spanner of both sides and cam are riveted on the overcoat (12) by bearing pin (15) again, and latch.

3, duplex expansion buckle type self locking quick connector according to claim 1 and 2 is characterized in that described safety lock mechanism comprises that described pipe nipple (23) outer surface is the multidiameter shaft structure, by the conical surface transition; Be provided with between it and the pipe joint (8,32) and overcoat (12) omoplate location and fixing locking bed, locking bed is provided with several locking elements, the corresponding groove that slips into for locking element that is provided with on pipe joint.

4, duplex expansion buckle type self locking quick connector according to claim 3, it is characterized in that described safety lock mechanism is a ball lock, its locking bed is ball base (11), locking element is ball (10), the ball base radial equipartition has 6 conical ball through holes, 6 balls are arranged in the ball through hole, the corresponding trapezoidal inner groove that slips into for ball (10) that is provided with on pipe joint (8).

5, duplex expansion buckle type self locking quick connector according to claim 3, it is characterized in that described safety lock mechanism is the needle roller locking, its locking bed is needle roller seat (33), locking element is needle roller (34), needle roller seat (33) respectively is provided with 1 needle roller groove (38) on endoporus two opposites, 2 needle roller branches are located in 2 needle roller grooves, corresponding on pipe joint (32), be provided with for needle roller (34) slip into trapezoidal in straight trough (37).

6, duplex expansion buckle type self locking quick connector according to claim 1 is characterized in that a described overcoat (12) and a side of fixed cover (18) are respectively equipped with directed boss (35) and the recess of installing (36).

7, duplex expansion buckle type self locking quick connector according to claim 6 is characterized in that the described outer boss (35) that puts is the chock type.