CN104110539B - Air-conditioner and Anti-dismantling pipe connecting device - Google Patents

Air-conditioner and Anti-dismantling pipe connecting device Download PDF

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Publication number
CN104110539B
CN104110539B CN201310309099.9A CN201310309099A CN104110539B CN 104110539 B CN104110539 B CN 104110539B CN 201310309099 A CN201310309099 A CN 201310309099A CN 104110539 B CN104110539 B CN 104110539B
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CN
China
Prior art keywords
pipe
face
chisel
chisel teeth
pipe joint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310309099.9A
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Chinese (zh)
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CN104110539A (en
Inventor
刘智勇
刘国虬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Guangdong Midea Refrigeration Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Guangdong Midea Refrigeration Equipment Co Ltd
Priority to CN201310309099.9A priority Critical patent/CN104110539B/en
Publication of CN104110539A publication Critical patent/CN104110539A/en
Application granted granted Critical
Publication of CN104110539B publication Critical patent/CN104110539B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/005Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts comprising locking means for the threaded member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/0231Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member with specially adapted means for positioning the threaded member behind the collar
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
    • F16L19/028Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
    • F16L19/0283Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall and having a bell-mouthed shape
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26Refrigerant piping
    • F24F1/32Refrigerant piping for connecting the separate outdoor units to indoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2201/00Special arrangements for pipe couplings
    • F16L2201/20Safety or protective couplings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention provides a kind of Anti-dismantling pipe connecting device, pipe joint includes the first outer-hexagonal section and external thread section, union nut includes the second outer-hexagonal section, external thread section forward is locked in the second outer-hexagonal section, biend between first outer-hexagonal section and the second outer-hexagonal section is respectively arranged with some first chisel teeths being arranged radially and some second chisel teeths being arranged radially, elastic washer it is provided with between biend, the opposite sides of elastic washer has some first stop surfaces and some second stop surfaces, when pipe joint reversely screws with union nut, first stop surface supports and terminates on described first chisel teeth, second stop surface supports and terminates on described second chisel teeth.By first, second stop surface of elastic washer backstop respectively in the first chisel teeth and the second chisel teeth, it is to avoid the thing of dismounting by mistake occurs, it is to avoid the coolant leakage of air-conditioner, it is ensured that the life security of user.The present invention also provides for a kind of air-conditioner applying above-mentioned Anti-dismantling pipe connecting device.

Description

Air-conditioner and Anti-dismantling pipe connecting device
Technical field
The invention belongs to air-conditioning duct interconnection technique field, particularly relate to a kind of Anti-dismantling pipe connecting device and application The air-conditioner of this Anti-dismantling pipe connecting device.
Background technology
At present, the indoor of Domestic separating air-conditioner is all that the mode using pipe joint and auxiliary nut connects Vaporizer and the pipeline of off-premises station.The outer surface of existing auxiliary nut is prismatic surface, has force tangent plane, Pipe joint is usually integral type pipe joint, is mainly made up of, by prism thread segment and prism section two parts When section applies clockwise moment, thread segment rotates together with prism section, can closely cooperate with auxiliary nut, shape Become sealing surface.But, when prism section is applied anticlockwise moment, drive thread segment to revolve together the most simultaneously Turning, therefore, pipe joint can unclamp with coordinating of auxiliary nut, thus, deposit between pipe joint and auxiliary nut In dismountable probability, dismounting by mistake can be produced and cause the hidden danger of coolant leakage.
EN60335-2-40 and GB4706.32-2012 standard requires to use the air-conditioning of combustible refrigerant Device indoor does not allow to reuse detachable connector, this is because between existing pipe joint and auxiliary nut Connection there is detachability, can cause between pipe joint and auxiliary nut dismantling by mistake, and then cause safe thing Therefore.
In order to solve the non-compliant problem of demountable tube joint, prior art have employed vaporizer adapter And use the mode of welding to connect between off-premises station adapter.Though welding conformance with standard, but welding makes evaporation The attended operation of device and adapter is complicated, simultaneously Customer Premise carry out weld job there is also certain risk and Trouble.
Summary of the invention
The purpose of the embodiment of the present invention is to provide a kind of Anti-dismantling pipe connecting device, it is intended to solve prior art empty Adjust the possibility that there is dismounting by mistake between pipe joint and the auxiliary nut used by device, coolant leakage accident easily occur, The life security of user is constituted a threat to.
The embodiment of the present invention is achieved in that a kind of Anti-dismantling pipe connecting device, it include the first connecting tube, Second connecting tube and connect the Anti-detachable pipe connector assembly of described first connecting tube and described second connecting tube, institute State pipe joint that Anti-detachable pipe connector assembly includes being connected with the one end of described second connecting tube and with described pipe The union nut of splice closure, the one end of described first connecting tube is fixed on described pipe joint and described adapter Between nut, described pipe joint includes with the first outer-hexagonal section and the external thread section screwed for instrument, described Union nut includes that by the second outer-hexagonal section screwed for instrument, described external thread section forward locks described In two outer-hexagonal sections, the first end face of the close described second outer-hexagonal section of described first outer-hexagonal section is provided with Some first chisel teeths being arranged radially, the close described first outer-hexagonal section of described second outer-hexagonal section The second end face be provided with some second chisel teeths being arranged radially, described first end face and described second Being provided with elastic washer between end face, the side of described elastic washer has some first stop surfaces, described bullet The opposite side of property packing ring has some second stop surfaces, and described first stop surface connects with described in described pipe joint When pipe nut reversely screws support terminate on described first chisel teeth, described second stop surface in described pipe joint with Support when described union nut reversely screws and terminate on described second chisel teeth.
Further, if described elastic washer includes what ring body and the periphery by described ring body extended radially Dry gear piece, each gear piece is obliquely installed by the direction of described first end face to described second end face, described gear piece The first side of close described first end face be described first stop surface, close described the second of described gear piece Second side of end face is described second stop surface.
Further, described first chisel teeth, described second chisel teeth are identical with the quantity of described gear piece and three Person's one_to_one corresponding.
Further, each first chisel teeth connects continuously, and described first chisel teeth has low-lying end and high-end, The high-end of described first chisel teeth slips over described gear piece when described pipe joint forward screws in described union nut First sidepiece at the first place, side.
Further, wherein one first chisel teeth in adjacent 2 first chisel teeths is high-end with other one first Being formed with the first block face between the low-lying end of tooth of wedge shape, described first block face is in described pipe joint and described adapter When nut reversely screws, backstop is on the first stop surface of described gear piece.
Further, each second chisel teeth connects continuously, and described second chisel teeth has low-lying end and high-end, The high-end of described second chisel teeth slips over described gear piece when described union nut and described pipe joint forward are sealed Second sidepiece at the second place, side.
Further, wherein one second chisel teeth in adjacent 2 second chisel teeths is high-end with other one second Being formed with the second block face between the low-lying end of tooth of wedge shape, described second block face is in described pipe joint and described adapter When nut reversely screws, backstop is on the second stop surface of described gear piece.
Further, described union nut also includes the Taper Pipe section being connected to described second outer-hexagonal section, described The end of the first connecting tube is provided with the connecting portion that opening is the widest, and described connecting portion is folded in described external thread section End and described Taper Pipe section between.
Further, being formed with one first conical surface in described Taper Pipe section, the end of described external thread section is formed Second conical surface, described connecting portion is folded between described first conical surface and described second conical surface.
The another object of the embodiment of the present invention is to provide a kind of air-conditioner, it include indoor set, off-premises station and Above-mentioned Anti-dismantling pipe connecting device, described first connecting tube is connected on described off-premises station, described second connecting tube It is connected on described indoor set.
Sandwiched one elastic washer between pipe joint and union nut, and by the opposite sides of elastic washer First stop surface and the second stop surface distinguish backstop with union nut on pipe joint when pipe joint reversely screws The first chisel teeth and union nut on the second chisel teeth so that pipe joint reversely screws with union nut Become impossible, thoroughly avoid occurring the thing of dismounting by mistake, it is to avoid the coolant leakage of air-conditioner, it is ensured that use The life security at family.
Accompanying drawing explanation
Fig. 1 is the three-dimensional exploded view of the Anti-dismantling pipe connecting device that the embodiment of the present invention provides.
Fig. 2 shows the pipe joint of Anti-dismantling pipe connecting device and in the assembling process of union nut of Fig. 1 The structure chart of individual state.
Fig. 3 is the circled enlarged drawing of Fig. 2.
Fig. 4 is the axonometric chart of the union nut of the Anti-dismantling pipe connecting device of Fig. 1.
Fig. 5 is the sectional view of the union nut of the Anti-dismantling pipe connecting device of Fig. 4.
Fig. 6 is the axonometric chart of the pipe joint of the Anti-dismantling pipe connecting device of Fig. 1.
Fig. 7 is the sectional view of the pipe joint of the Anti-dismantling pipe connecting device of Fig. 6.
Element numbers involved in above-mentioned each accompanying drawing is as follows:
Anti-dismantling pipe connecting device 10 Union nut 60
First connecting tube 20 Second outer-hexagonal section 61
End 21、31 Second end face 62
Second connecting tube 30 Taper Pipe section 63
Connecting portion 22 First conical surface 64
Anti-detachable pipe connector assembly 40 Second chisel teeth 80
Pipe joint 50 Second block face 83
First outer-hexagonal section 51 Elastic washer 90
External thread section 52 First stop surface 91
First end face 53 Second stop surface 92
Second conical surface 54 Ring body 93
First chisel teeth 70 Gear piece 94
Low-lying end 71、81 First sidepiece 95
High-end 72、82 Second sidepiece 96
First block face 73
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein Only in order to explain the present invention, it is not intended to limit the present invention.
Please refer to Fig. 1 to Fig. 3, the Anti-dismantling pipe connecting device 10 that the embodiment of the present invention provides includes first Connecting tube the 20, second connecting tube 30 and connect described first connecting tube 20 and described second connecting tube 30 Anti-detachable pipe connector assembly 40.
Described Anti-detachable pipe connector assembly 40 includes the pipe being connected with the one end 31 of described second connecting tube 30 Joint 50 and the union nut 60 sealed with described pipe joint 50, the one end of described first connecting tube 20 21 are fixed between described pipe joint 50 and described union nut 60.Described pipe joint 50 include with for The first outer-hexagonal section 51 that instrument screws and external thread section 52.Described union nut 60 includes with for instrument The the second outer-hexagonal section 61 screwed.Described external thread section 52 forward is locked in described second outer-hexagonal section 61.
First end face 53 of the close described second outer-hexagonal section 61 of described first outer-hexagonal section 51 be provided with in Some first chisel teeths 70 of radial arrangement.Close described the first of described second outer-hexagonal section 61 outer six Second end face 62 of angle section 51 is provided with some second chisel teeths 80 being arranged radially.Described first end It is provided with elastic washer 90 between face 53 and described second end face 62.The side tool of described elastic washer 90 There are some first stop surfaces 91.The opposite side of described elastic washer 90 has some second stop surfaces 92.Institute State the first stop surface 91 to support when described pipe joint 50 reversely screws with described union nut 60 and terminate in described the On one chisel teeth 70, described second stop surface 92 is reverse with described union nut 60 in described pipe joint 50 Support when screwing and terminate on described second chisel teeth 80.
Sandwiched one elastic washer 90 between pipe joint 50 and union nut 60, and by elastic washer 90 The first stop surface 91 of opposite sides and the second stop surface 92 reverse with union nut 60 at pipe joint 50 The difference backstop the first chisel teeth 70 on pipe joint 50 and the second chisel teeth on union nut 60 when screwing 80 so that pipe joint 50 becomes impossible with reversely screwing of union nut 60, thoroughly avoid occurring to tear open by mistake The thing unloaded, it is to avoid the coolant leakage of air-conditioner, it is ensured that the life security of user.
In the present embodiment, described elastic washer 90 includes ring body 93 and by the periphery of described ring body 93 in putting Penetrate some gear pieces 94 that shape extends.Each gear piece 94 by described first end face 53 to described second end face 62 Direction be obliquely installed.First side of close described first end face 53 of described gear piece 94 is described first Stop surface 91, the second side of close described second end face 62 of described gear piece 94 is described second stop surface 92.In other embodiments, elastic washer 90 can be a circular ring plate structure, and relative at circular ring plate Both sides are respectively provided with wedge structure, are matched by wedge structure and first chisel teeth the 70, second chisel teeth 80 Close, it is achieved the function of Anti-dismantling.
Each rectangular laminated structure of gear piece 94, each gear piece 94 is individually present, the bottom of each gear piece 94 It is connected with described ring body 93.Described first chisel teeth 70, described second chisel teeth 80 and described gear piece 94 Quantity is identical and three's one_to_one corresponding.
Each first chisel teeth 70 connects continuously, and described first chisel teeth 70 has low-lying end 71 and high-end 72, high-end the 72 of described first chisel teeth 70 screw in described union nut 60 in described pipe joint 50 forward First sidepiece 95 at the first place, side of described gear piece 94 is slipped over time interior.Each second chisel teeth 80 is continuous Connecting, described second chisel teeth 80 has low-lying end 81 and high-end 82, the height of described second chisel teeth 80 End 82 slips over the second of described gear piece 94 when described union nut 60 is sealed with described pipe joint 50 forward Second sidepiece 96 at place, side.
High-end 72 of wherein one first chisel teeth 70 in adjacent 2 first chisel teeths 70 and other one first wedge Being formed with the first block face 73 between the low-lying end of tooth 71 of shape, described first block face 73 is in described pipe joint 50 When reversely screwing with described union nut 60, backstop is on the first stop surface 91 of described gear piece 94.Adjacent two High-end 82 of wherein one second chisel teeth 80 in second chisel teeth 80 and other one second chisel teeth 80 Be formed with the second block face 83 between low-lying end 81, described second block face 83 in described pipe joint 50 with described When union nut 60 reversely screws, backstop is on the second stop surface 92 of described gear piece 94.
So, when pipe joint 50 and union nut 60 are when sealed to close to each other, described first chisel teeth High-end the 72 of 70 slip over first sidepiece 95 at the first place, side of described gear piece 94 and described second wedge After second sidepiece 96 at the second place, side that high-end the 82 of shape tooth 80 slip over described gear piece 94, gear piece 94 Recover elastic deformation so that the between the first stop surface 91 of gear piece 94 with adjacent 2 first chisel teeths 70 One block face 73 is facing, between the second stop surface 92 of gear piece 94 with adjacent 2 second chisel teeths 80 Two block faces 83 are facing, when operator's maloperation, when reversely screwing pipe joint 50 with union nut 60, and tooth Sheet 94 first stop surface 91 can backstop on the first block face 73, the second stop surface 92 backstop of gear piece 94 On the second block face 83, even if operator is the biggest, gear piece 94 is at the first block face 73 and the second block face The common effect of 83 is lower to be reversed, to increase the dismounting difficulty of dismounting pipe joint 50 and union nut 60, it is to avoid There is the thing of dismounting by mistake, it is to avoid the coolant leakage of air-conditioner, it is ensured that the life security of user.
Please refer to Fig. 4 to Fig. 7, described union nut 60 also includes being connected to described second outer-hexagonal section The Taper Pipe section 63 of 61.The end 21 of described first connecting tube 20 is provided with the widest connecting portion of opening 22. Described connecting portion 22 is folded between the end of described external thread section 52 and described Taper Pipe section 63.
One first conical surface 64 it is formed with in described Taper Pipe section 63.The end of described external thread section 52 is formed with Two conical surfaces 54.The connecting portion 22 of described first connecting tube 20 is folded in described first conical surface 64 and described the Between two conical surfaces 54.It is to be appreciated that between the connecting portion 22 of the first connecting tube 20 and Taper Pipe section 63 or (figure is not can to arrange sealing ring between connecting portion 22 and the end of external thread section 52 of the first connecting tube 20 Show), to increase the sealing between three.
In the installation process of above-mentioned Anti-dismantling pipe connecting device 10, the one end 31 of the second connecting tube 30 is welded in In described pipe joint 50, the first connecting tube 20 is penetrated to union nut 60 by the second outer-hexagonal section 61, And the connecting portion 22 of the first connecting tube 20 is placed in the Taper Pipe section 63 of union nut 60.Then, by elasticity Packing ring 90 is inserted in the external thread section 52 of pipe joint 50, re-uses screwing tool and is respectively acting on pipe joint 50 The first outer-hexagonal section 51 and the second outer-hexagonal section 61 of union nut 60 rotate forward (dextrorotation Turn), external thread section 52 is locked in union nut 60, until first stop surface on elastic washer 90 two sides 91 and second stop surface 92 respectively with the first chisel teeth 70, second wedge of union nut 60 of pipe joint 50 Shape tooth 80 phase wedge shape is connected, due to the existence of elastic washer 90, make pipe joint 50 and union nut 60 it Between cooperatively form sealing.Pipe joint 50 and union nut 60 just cannot be dismantled after once installing, it is to avoid send out The thing of raw dismounting by mistake, it is to avoid the coolant leakage of air-conditioner, it is ensured that the life of user and property safety.
Above-mentioned Anti-dismantling pipe connecting device 10 is applied in an air-conditioner (not shown), wherein, and this air-conditioner bag Include indoor set (not shown), off-premises station (not shown) and above-mentioned Anti-dismantling pipe connecting device 10, described first Connecting tube 20 is connected on described off-premises station, and described second connecting tube 30 is connected on described indoor set.Empty The second connecting tube 30 of the indoor set of device and the first connecting tube 20 of off-premises station is adjusted to pass through Anti-dismantling pipe connecting device 10 couple together, and the first connecting tube 20 is non-dismountable connection with the second connecting tube 30, effectively prevents The phenomenon only leading secondary refrigerant leakage because dismantling by mistake produces, and air-conditioner has more preferable security performance.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention Protection domain within.

Claims (10)

1. an Anti-dismantling pipe connecting device, it includes the first connecting tube, the second connecting tube and connects described first The Anti-detachable pipe connector assembly of connecting tube and described second connecting tube, described Anti-detachable pipe connector assembly include with The pipe joint of the one end connection of described second connecting tube and the union nut sealed with described pipe joint, described The one end of the first connecting tube is fixed between described pipe joint and described union nut, it is characterised in that: institute State pipe joint and include that with the first outer-hexagonal section and the external thread section screwed for instrument, described union nut includes By the second outer-hexagonal section screwed for instrument, described external thread section forward is locked in described second outer-hexagonal section, First end face of the close described second outer-hexagonal section of described first outer-hexagonal section is provided with and is arranged radially Some first chisel teeths, the second end face of the close described first outer-hexagonal section of described second outer-hexagonal section is arranged There are some second chisel teeths being arranged radially, are provided with between described first end face and described second end face Elastic washer, the side of described elastic washer has some first stop surfaces, the opposite side of described elastic washer Having some second stop surfaces, described first stop surface reversely screws with described union nut in described pipe joint Time support terminate on described first chisel teeth, described second stop surface is anti-with described union nut in described pipe joint Support in time screwing and terminate on described second chisel teeth.
2. Anti-dismantling pipe connecting device as claimed in claim 1, it is characterised in that: described elastic washer includes Some gear pieces that ring body and the periphery by described ring body extend radially, each gear piece is by described first end face Direction to described second end face is obliquely installed, and the first side of close described first end face of described gear piece is Described first stop surface, the second side of close described second end face of described gear piece is described second stop surface.
3. Anti-dismantling pipe connecting device as claimed in claim 2, it is characterised in that: described first chisel teeth, Described second chisel teeth is identical with the quantity of described gear piece and three's one_to_one corresponding.
4. Anti-dismantling pipe connecting device as claimed in claim 2, it is characterised in that: each first chisel teeth is even Continuous connecting, described first chisel teeth has low-lying end and high-end, described first chisel teeth high-end in described pipe First sidepiece at the first place, side of described gear piece is slipped over time in the joint forward described union nut of screw-in.
5. Anti-dismantling pipe connecting device as claimed in claim 4, it is characterised in that: adjacent 2 first chisel teeths In wherein one first chisel teeth high-end and other one first wedge shape the low-lying end of tooth between be formed with first gear Face, described first block face when described pipe joint and described union nut reversely screw backstop in described gear piece On first stop surface.
6. Anti-dismantling pipe connecting device as claimed in claim 2, it is characterised in that: each second chisel teeth is even Continuous connecting, described second chisel teeth has low-lying end and high-end, and the high-end of described second chisel teeth connects in described Pipe nut slips over second sidepiece at the second place, side of described gear piece with described pipe joint forward time sealed.
7. Anti-dismantling pipe connecting device as claimed in claim 6, it is characterised in that: adjacent 2 second chisel teeths In wherein one second chisel teeth high-end and other one second wedge shape the low-lying end of tooth between be formed with second gear Face, described second block face when described pipe joint and described union nut reversely screw backstop in described gear piece On second stop surface.
8. the Anti-dismantling pipe connecting device as described in any one of claim 1-7, it is characterised in that: described adapter Nut also includes the Taper Pipe section being connected to described second outer-hexagonal section, and the end of described first connecting tube is provided with The connecting portion that opening is the widest, described connecting portion is folded between the end of described external thread section and described Taper Pipe section.
9. Anti-dismantling pipe connecting device as claimed in claim 8, it is characterised in that: formed in described Taper Pipe section Having one first conical surface, the end of described external thread section is formed with second conical surface, and described connecting portion is folded in described Between first conical surface and described second conical surface.
10. an air-conditioner, it includes indoor set and off-premises station, it is characterised in that: described air-conditioner also wraps Including the Anti-dismantling pipe connecting device as described in any one of claim 1-9, described first connecting tube is connected to described On off-premises station, described second connecting tube is connected on described indoor set.
CN201310309099.9A 2013-07-22 2013-07-22 Air-conditioner and Anti-dismantling pipe connecting device Active CN104110539B (en)

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Application Number Priority Date Filing Date Title
CN201310309099.9A CN104110539B (en) 2013-07-22 2013-07-22 Air-conditioner and Anti-dismantling pipe connecting device

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CN104110539A CN104110539A (en) 2014-10-22
CN104110539B true CN104110539B (en) 2016-11-23

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CN105276317B (en) * 2015-11-20 2017-07-04 朱德伟 Connection parts and combination device that pressure hose is used cooperatively with it
CN109404634B (en) * 2017-08-18 2023-09-12 广东美的制冷设备有限公司 Anti-disassembly pipe joint assembly and air conditioner
CN109114339B (en) * 2018-10-29 2023-08-11 奥克斯空调股份有限公司 Anti-disassembly connector, connector assembly and air conditioner
CN112212094B (en) * 2020-11-02 2024-05-28 安徽理工大学 Detachable anti-loose self-tightening gasket half flange joint and use method thereof

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