CN103174888B - Undetachable tube connector and method of preventing detachment of tube connector - Google Patents
Undetachable tube connector and method of preventing detachment of tube connector Download PDFInfo
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- CN103174888B CN103174888B CN201110435844.5A CN201110435844A CN103174888B CN 103174888 B CN103174888 B CN 103174888B CN 201110435844 A CN201110435844 A CN 201110435844A CN 103174888 B CN103174888 B CN 103174888B
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- pipe joint
- rotary component
- joint body
- tube connector
- follower
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Abstract
The invention discloses an undetachable tube connector which comprises a tube connector body and a rotating component for rotation of a tool. First outer threads are arranged at a first end of the tube connector body. The rotating component and the tube connector body are two independent parts. A driving part and a driven part which are matched with each other are respectively arranged on the rotating component and the tube connector body. When tightening torque is applied on the rotating component, the driving part can be combined with the driven part, and the rotating component drives the tube connector body to synchronously rotate through interactive functions of the driving part and the driven part. When unscrewing torque is applied on the rotating component, the driving part and the driven part are separated. The undetachable tube connector ensures non-looseness of the tube connector and a tube connecting nut, avoids the problem of refrigerant leakage caused by detachability of a present tube connector and a tube connecting nut, and expands the utilization range of flammable refrigerants. Meanwhile, the undetachable tube connector has the advantages of being easy to install, simple in structure and convenient to machine. Meanwhile, the invention discloses a method of preventing detachment of the tube connector.
Description
Technical field
The present invention relates to pipe joint, especially a kind of non-dismountable pipe joint, and pipe joint prevents the method for dismounting.
Background technique
The detachable air conditioner indoor side of current common working medium all uses pipe joint to be connected vaporizer and connecting tube with the mode of union nut.And use and inside the air conditioner chamber of combustible refrigerant, not allow to use detachable connector, in prior art designs, split air conditioner directly adopts indoor side vaporizer and connecting tube welding, outdoor to adopt the scheme of rapid pipe joint when developing, though the requirement of standard and Security can be met, also there is Railway Project:
1, rapid connector component cost is high, makes product advantage on cost not obvious.
2, install after sale the restriction being subject to connecting tube, product using scope reduces further.
Summary of the invention
First technical problem to be solved by this invention is, provides a kind of non-dismountable pipe joint, to avoid existing pipe joint and the secondary refrigerant leakage problem of union nut because detachably causing, expands the using scope of combustible refrigerant.
Second technical problem to be solved by this invention is, provides a kind of pipe joint to prevent the method dismantled, and to be connected secondary refrigerant leakage problem because detachably causing, the using scope of expansion combustible refrigerant to improve existing pipe joint with union nut.
The technological scheme that the present invention solves above-mentioned first technical problem employing is: a kind of non-dismountable pipe joint, it rotary component comprising pipe joint body and rotate for instrument, the first end of this pipe joint body is provided with the first outside thread, described rotary component and described pipe joint body are two independently parts, and are respectively equipped with the initiative part and follower that match on described rotary component and described pipe joint body; When applying screw-down torque at described rotary component, described initiative part can be combined with described follower, described rotary component drives described pipe joint body synchronous rotary by the interaction of described initiative part and described follower, when applying to unscrew moment at described rotary component, described initiative part and described secondary part from.
Preferably, described rotary component is tubular structure, and its kink is in the outside of the second end of described pipe joint body.
Preferably, the outer wall of described rotary component is prismatic surface.
Preferably, the middle part outer wall of described pipe joint body is provided with outwardly annular boss, described initiative part is the more than one chisel teeth being located at rotary component, and described follower is the more than one chisel teeth on described boss, and the angle of this chisel teeth sphenoid surface is less than its Self-locking angle.
Preferably, the second end of described pipe joint body is provided with the second outside thread, and the inwall of described rotary component is provided with the internal thread matched with this second outside thread.
Preferably, described second externally threaded pitch is greater than described first externally threaded pitch.
Preferably, described second externally threaded lift angle is greater than described first externally threaded lift angle.
Preferably, described second externally threaded pitch is more than or equal to the tooth depth of chisel teeth on described boss and the product of chisel teeth number.
Preferably, described initiative part be located at described rotary component and described pipe joint body first end homonymy end face on more than one breach of oblique setting, described follower is be located at the outward extending locating column in the middle part of described pipe joint body on outer wall.
The technological scheme that the present invention solves above-mentioned second technical problem employing is: a kind of pipe joint prevents the method dismantled, the rotary component that described pipe joint comprises pipe joint body and rotates for instrument, the first end of this pipe joint body is provided with the first outside thread, it comprises the steps: described pipe joint body and described rotary component to be divided into two independently parts, and processes the initiative part and follower that match respectively on described rotary component and described pipe joint body; When applying screw-down torque at described rotary component, described initiative part can be combined with described follower, described rotary component drives described pipe joint body synchronous rotary by the interaction of described initiative part and described follower, when applying to unscrew moment at described rotary component, described initiative part and described secondary part from.
Compared with prior art, advantage of the present invention is:
Non-dismountable pipe joint provided by the present invention and pipe joint prevent the method dismantled, ensure that pipe joint and union nut do not get loose, avoid existing pipe joint and union nut because of the secondary refrigerant leakage problem detachably caused, expand the using scope of combustible refrigerant; Meanwhile, non-dismountable pipe joint provided by the present invention also has easy installation, and structure is simple, advantage easy to process.
Accompanying drawing explanation
Fig. 1 is the structural representation of non-dismountable pipe joint in the embodiment of the present invention 1;
Fig. 2 is the schematic perspective view of the rotary component of non-dismountable pipe joint shown in Fig. 1;
Fig. 3 is the erection drawing of non-dismountable pipe joint and union nut shown in Fig. 1;
Fig. 4 is the structural representation of non-dismountable pipe joint in the embodiment of the present invention 2;
Fig. 5 is the schematic perspective view of the rotary component of non-dismountable pipe joint shown in Fig. 4.
Description of reference numerals: the first end of 1-pipe joint body, 11-pipe joint body 1, the second end of 12-pipe joint body 1,13-first outside thread, 14-second outside thread, 15-boss, 16-chisel teeth, 17-locating column, 2-rotary component, 21-chisel teeth, the sphenoid surface of 21a-chisel teeth, 22-breach, 3-union nut.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail:
Non-dismountable pipe joint provided by the present invention and pipe joint prevent the method dismantled to be applied to and include but not limited to the vaporizer of detachable air conditioner indoor side and the connection of connecting tube, describe in detail below by embodiment.
Embodiment 1
See Fig. 1 to Fig. 3, the non-dismountable pipe joint in the present embodiment comprises mutually independently pipe joint body 1 and the rotary component 2 for instrument rotation, and the first end 11 of this pipe joint body 1 and the second end 12 are respectively equipped with the first outside thread 13 and the second outside thread 14.First outside thread 13 is for being connected with union nut 3, and the second outside thread 14, for being connected with rotary component 2, makes rotary component 2 be retained on pipe joint body 1, avoids rotary component 2 to depart from abnormal sound when pipe joint body 1 vibrates.Preferably, the pitch of described second outside thread 14 is greater than the pitch of described first outside thread 13, the lift angle of described second outside thread 14 is greater than the lift angle of described first outside thread 13, described rotary component 2 exit that stroke is greater than the union nut 3 be threaded with the first end 11 of described pipe joint body 1 exit stroke.The middle part outer wall of pipe joint body 1 is provided with outwardly annular boss 15, boss 15 is circumferentially evenly provided with two followers, in the present embodiment, follower is chisel teeth 16, and the height and the width of this chisel teeth 16 are rationally arranged according to caliber and pitch.
Rotary component 2 is tubular structure, and its kink is in the outside of the second end 12 of pipe joint body 1, and the outer wall of rotary component 2 is six prismatic surfaces, and the inwall of rotary component 2 is provided with the internal thread matched with the second outside thread 14 on pipe joint body 1.The end face of rotary component 2 is provided with the initiative part of equal number, and the initiative part of the present embodiment is also chisel teeth 21, and the sphenoid surface 21a angle of chisel teeth 21 is much smaller than Self-locking angle.The pitch phase coadaptation of the height of chisel teeth 16 and chisel teeth 21 and the second outside thread 14 of pipe joint body 1, the pitch being preferably the second outside thread 14 is more than or equal to the tooth depth of chisel teeth 16 on boss 15 and the product of chisel teeth number.Make it when described rotary component 2 applies to unscrew moment, the follower chisel teeth 16 on pipe joint body 1 can not be mutually stuck with the initiative part chisel teeth 21 on rotary component 2, ensures that initiative part is separated smoothly with described follower.When applying screw-down torque at rotary component 2, initiative part can be combined with follower, rotary component 2 drives pipe joint body 1 synchronous rotary by the interaction of initiative part and follower, and by the first end 11 precession union nut 3 of pipe joint body 1, when applying to unscrew moment at rotary component 2, initiative part and secondary part from, ensure that the first end 11 of pipe joint body 1 closely cooperates with union nut 3, play the effect of Anti-dismantling.
Imagination uses extracting tool on sphenoid surface 21a, apply counter-force dismounting pipe joint body 1, and when the angle of chisel teeth sphenoid surface 21a is much smaller than Self-locking angle, extracting tool cannot apply active force on sphenoid surface 21a.Self-locking angle is when extracting tool is applied to sphenoid surface 21a, make the critical angle of pipe joint counterrotating, Self-locking angle is different according to the material difference of pipe joint, when the angle of chisel teeth sphenoid surface 21a is greater than Self-locking angle, the active force be applied on sphenoid surface 21a can by pipe joint counterrotating, when the angle of chisel teeth sphenoid surface 21a is less than Self-locking angle, the active force be applied on sphenoid surface 21a then by pipe joint counterrotating, cannot really reach the non-removable effect of pipe joint.Empirical evidence, when the angle of the sphenoid surface of chisel teeth is 20 °, need provide at least 5 times of moments of torsion to pre-load nut that pipe joint body 1 just can be made to reverse.If Φ 6 pipe as installed joint moment of torsion is 15 ~ 20NM, then at least need the moment of torsion of 100NM could twist pipe joint body 1 (being equivalent to the moment of torsion of commercially available automobile 1.3 liters of motors 2000 turns time). substantially can not realize.But the numerical value of above-mentioned power is only limited to when material is copper and is suitable for, chisel teeth angle can be different according to the material difference of pipe joint.
Even if rotary component 2 gets loose or exits, pipe joint body 1 and union nut 3 still compact siro spinning technology, during independent counterrotating pipe joint body 1, when masterpiece is used in pipe joint body 1, the end face because of pipe joint body 1 is cylinder, and it cannot be made stressed; When masterpiece is used in sphenoid surface 21a, because the angle of chisel teeth is much smaller than its Self-locking angle, it cannot be made stressed, therefore ensure that not getting loose of union nut 3 and pipe joint body 1, prevent secondary refrigerant leakage.
As can be seen here, the non-dismountable pipe joint that the present embodiment provides, ensure that pipe joint body 1 and union nut 3 do not get loose, and avoids existing pipe joint and union nut because of the secondary refrigerant leakage problem detachably caused, expands the using scope of combustible refrigerant; Meanwhile, the non-dismountable pipe joint that the present embodiment provides also has easy installation, and structure is simple, advantage easy to process.
Embodiment 2
See Fig. 4 and Fig. 5, the difference of the present embodiment and embodiment 1 is: described initiative part is the breach 22 of two the oblique settings being located at rotary component 2 one end, and described follower is two the outward extending locating columns 17 be located in the middle part of pipe joint body 1 on outer wall.
These are only specific embodiments of the invention, do not limit protection scope of the present invention with this; Not violating any replacement and improvement that the basis of the present invention's design is done, all belong to protection scope of the present invention.
Claims (10)
1. a non-dismountable pipe joint, it rotary component comprising pipe joint body and rotate for instrument, the first end of this pipe joint body is provided with the first outside thread, it is characterized in that: described rotary component and described pipe joint body are two independently parts, and be respectively equipped with the initiative part and follower that match on described rotary component and described pipe joint body; When applying screw-down torque at described rotary component, described initiative part can be combined with described follower, described rotary component drives described pipe joint body synchronous rotary by the interaction of described initiative part and described follower, when applying to unscrew moment at described rotary component, described initiative part and described secondary part from.
2. non-dismountable pipe joint according to claim 1, is characterized in that: described rotary component is tubular structure, and its kink is in the outside of the second end of described pipe joint body.
3. non-dismountable pipe joint according to claim 2, is characterized in that: the outer wall of described rotary component is prismatic surface.
4. the non-dismountable pipe joint according to any one of claim 2 to 3, it is characterized in that: the middle part outer wall of described pipe joint body is provided with outwardly annular boss, described initiative part is the more than one chisel teeth being located at rotary component, described follower is the more than one chisel teeth on described boss, and the angle of this chisel teeth sphenoid surface is less than its Self-locking angle.
5. non-dismountable pipe joint according to claim 4, is characterized in that: the second end of described pipe joint body is provided with the second outside thread, and the inwall of described rotary component is provided with the internal thread matched with this second outside thread.
6. non-dismountable pipe joint according to claim 5, is characterized in that: described second externally threaded pitch is greater than described first externally threaded pitch.
7. non-dismountable pipe joint according to claim 5, is characterized in that: described second externally threaded lift angle is greater than described first externally threaded lift angle.
8. non-dismountable pipe joint according to claim 5, is characterized in that: described second externally threaded pitch is more than or equal to the tooth depth of chisel teeth on described boss and the product of chisel teeth number.
9. the non-dismountable pipe joint according to any one of claim 2 to 3, it is characterized in that: described initiative part be located at described rotary component and described pipe joint body first end homonymy end face on more than one breach of oblique setting, described follower is be located at the outward extending locating column in the middle part of described pipe joint body on outer wall.
10. a pipe joint prevents the method dismantled, the rotary component that described pipe joint comprises pipe joint body and rotates for instrument, the first end of this pipe joint body is provided with the first outside thread, it is characterized in that, comprise the steps: described pipe joint body and described rotary component to be divided into two independently parts, and process the initiative part and follower that match respectively on described rotary component and described pipe joint body; When applying screw-down torque at described rotary component, described initiative part can be combined with described follower, described rotary component drives described pipe joint body synchronous rotary by the interaction of described initiative part and described follower, when applying to unscrew moment at described rotary component, described initiative part and described secondary part from.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110435844.5A CN103174888B (en) | 2011-12-22 | 2011-12-22 | Undetachable tube connector and method of preventing detachment of tube connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110435844.5A CN103174888B (en) | 2011-12-22 | 2011-12-22 | Undetachable tube connector and method of preventing detachment of tube connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103174888A CN103174888A (en) | 2013-06-26 |
| CN103174888B true CN103174888B (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110435844.5A Active CN103174888B (en) | 2011-12-22 | 2011-12-22 | Undetachable tube connector and method of preventing detachment of tube connector |
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| Country | Link |
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| CN (1) | CN103174888B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN212616854U (en) * | 2020-04-15 | 2021-02-26 | 浙江盾安禾田金属有限公司 | Anti-dismantling joint and anti-dismantling joint assembly |
| CN215111093U (en) * | 2021-06-11 | 2021-12-10 | 浙江盾安禾田金属有限公司 | Anti-dismantling connecting piece |
| EP4354002A1 (en) * | 2021-06-11 | 2024-04-17 | Zhejiang Dunan Artificial Environment Co., Ltd. | Dismantle-prevention connector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087720U (en) * | 1991-03-08 | 1991-10-30 | 杨清辉 | Pipe joint modified device |
| CN1078299A (en) * | 1992-05-05 | 1993-11-10 | 邱增雄 | Joint |
| CN202392314U (en) * | 2011-12-22 | 2012-08-22 | 珠海格力电器股份有限公司 | Undetachable coupling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07208661A (en) * | 1994-01-14 | 1995-08-11 | Nippondenso Co Ltd | Refrigerant piping connecting device and manufacture thereof |
-
2011
- 2011-12-22 CN CN201110435844.5A patent/CN103174888B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2087720U (en) * | 1991-03-08 | 1991-10-30 | 杨清辉 | Pipe joint modified device |
| CN1078299A (en) * | 1992-05-05 | 1993-11-10 | 邱增雄 | Joint |
| CN202392314U (en) * | 2011-12-22 | 2012-08-22 | 珠海格力电器股份有限公司 | Undetachable coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103174888A (en) | 2013-06-26 |
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