CN103174888A - 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
- Publication number
- CN103174888A CN103174888A CN2011104358445A CN201110435844A CN103174888A CN 103174888 A CN103174888 A CN 103174888A CN 2011104358445 A CN2011104358445 A CN 2011104358445A CN 201110435844 A CN201110435844 A CN 201110435844A CN 103174888 A CN103174888 A CN 103174888A
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- Prior art keywords
- 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 dismantled.
Background technique
The detachable air conditioner indoor side of present common working medium all uses pipe joint to connect vaporizer and connecting tube with the union nut mode of being connected.And use the air conditioner chamber inboard of combustible refrigerant not allow to use detachable connector, in existing design, split air conditioner directly adopts the welding of indoor side vaporizer and connecting tube, outdoor to adopt the scheme of rapid pipe joint when exploitation, though can satisfy the requirement of standard and Security, also have several problems:
1, the rapid connector component cost is high, makes product advantage on cost not obvious.
2, the restriction that is subject to connecting tube is installed after sale, the product using scope further reduces.
Summary of the invention
First technical problem to be solved by this invention is, a kind of non-dismountable pipe joint is provided, and to avoid existing pipe joint and the secondary refrigerant leakage problem of union nut because detachably causing, enlarges 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 for dismantling, and is connected secondary refrigerant leakage problem because detachably causing, the using scope of expansion combustible refrigerant with union nut to improve existing pipe joint.
The technological scheme that the present invention solves above-mentioned first technical problem employing is: a kind of non-dismountable pipe joint, it comprises pipe joint body and the rotary component that rotates 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 initiative part and the follower that matches on described rotary component and described pipe joint body; When described rotary component applies screw-down torque, 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 at described rotary component when unscrewing moment, 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 of 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 that matches with this second outside thread.
Preferably, the described second externally threaded pitch is greater than the described first externally threaded pitch.
Preferably, the described second externally threaded lift angle is greater than the described first externally threaded lift angle.
Preferably, the described second externally threaded pitch is more than or equal to the product of tooth depth and the chisel teeth number of chisel teeth on described boss.
Preferably, described initiative part is an above breach being located at oblique setting on the end face of described rotary component and described pipe joint body first end homonymy, and described follower is the outward extending locating column of being located on the outer wall of described pipe joint body middle part.
The technological scheme that the present invention solves above-mentioned second technical problem employing is: a kind of method that pipe joint prevents from dismantling, described pipe joint comprises pipe joint body and the rotary component that 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 are divided into two independently parts, and processes respectively initiative part and the follower that matches on described rotary component and described pipe joint body; When described rotary component applies screw-down torque, 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 at described rotary component when unscrewing moment, 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, guaranteed that pipe joint and union nut do not get loose, avoid existing pipe joint and the union nut secondary refrigerant leakage problem because detachably causing, enlarged the using scope of combustible refrigerant; Simultaneously, non-dismountable pipe joint provided by the present invention also has easy installation, advantage simple in structure, easy to process.
Description of drawings
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 shown in Fig. 1 and union nut;
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-the first outside thread, 14-the 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 elaborated:
Non-dismountable pipe joint provided by the present invention and pipe joint prevent that the method for dismantling can be applied to include but not limited to that the vaporizer of detachable air conditioner indoor side is connected connection with connecting tube, describes in detail below by embodiment.
Referring to Fig. 1 to Fig. 3, the non-dismountable pipe joint in the present embodiment comprises mutual independently pipe joint body 1 and the rotary component 2 that rotates for instrument, 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.The first outside thread 13 is used for being connected with union nut 3, and the second outside thread 14 is used for being connected with rotary component 2, and rotary component 2 is retained on pipe joint body 1, abnormal sound when avoiding rotary component 2 to break away from 1 vibration of pipe joint body.Preferably, the pitch of described the second outside thread 14 is greater than the pitch of described the first outside thread 13, the lift angle of described the second outside thread 14 is greater than the lift angle of described the first outside thread 13, described rotary component 2 withdraw from stroke greater than the stroke that withdraws from of the union nut 3 that is threaded with the first end 11 of described pipe joint body 1.Be provided with outwardly annular boss 15 on the outer wall of the middle part of pipe joint body 1, along circumferentially evenly being provided with two followers, in the present embodiment, follower is chisel teeth 16 on boss 15, and the height and the width of this chisel teeth 16 rationally arrange according to caliber and pitch.
Imagination uses extracting tool to apply counter-force dismounting pipe joint body 1 on sphenoid surface 21a, and during much smaller than Self-locking angle, extracting tool can't apply active force on sphenoid surface 21a when the angle of chisel teeth 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 and different according to the material of pipe joint, when the angle of chisel teeth sphenoid surface 21a during greater than Self-locking angle, the active force that is applied on sphenoid surface 21a can be with the pipe joint counterrotating, during less than Self-locking angle, the active force that is applied on sphenoid surface 21a can't with the pipe joint counterrotating, really reach the non-removable effect of pipe joint when the angle of chisel teeth sphenoid surface 21a.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 just can make 1 counter-rotating of pipe joint body.Be 15～20NM as Φ 6 pipe as installed joint moments of torsion, need at least the moment of torsion of 100NM could twist pipe joint body 1 (being equivalent to the moment of torsion of 1.3 liters of motors of commercially available automobile when 2000 turn). substantially can not realize.But it is applicable when being copper that the numerical value of above-mentioned power is only limited to material, and the chisel teeth angle can be different and different according to the material of pipe joint.
Even rotary component 2 gets loose or withdraws from, pipe joint body 1 still closely is connected with union nut 3, separately during counterrotating pipe joint body 1, when masterpiece is used in pipe joint body 1, because the end face of pipe joint body 1 is cylinder, can't make it stressed; When masterpiece is used in sphenoid surface 21a, much smaller than its Self-locking angle, can't make it stressed because of the angle of chisel teeth, therefore guaranteed not getting loose of union nut 3 and pipe joint body 1, prevent secondary refrigerant leakage.
This shows, the non-dismountable pipe joint that the present embodiment provides has guaranteed that pipe joint body 1 and union nut 3 do not get loose, and has avoided existing pipe joint and the union nut secondary refrigerant leakage problem because detachably causing, and has enlarged the using scope of combustible refrigerant; Simultaneously, the non-dismountable pipe joint that the present embodiment provides also has easy installation, advantage simple in structure, easy to process.
Referring to Fig. 4 and Fig. 5, the present embodiment and embodiment's 1 difference is: described initiative part is the breach 22 of being located at two oblique settings of rotary component 2 one ends, and described follower is two outward extending locating columns 17 being located on pipe joint body 1 middle part outer wall.
These are only specific embodiments of the invention, do not limit protection scope of the present invention with this; Any replacement and the improvement done on the basis of not violating the present invention's design all belong to protection scope of the present invention.
Claims (10)
1. non-dismountable pipe joint, it comprises pipe joint body and the rotary component that rotates 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 are respectively equipped with initiative part and the follower that matches on described rotary component and described pipe joint body; When described rotary component applies screw-down torque, 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 at described rotary component when unscrewing moment, described initiative part and described secondary part from.
2. non-dismountable pipe joint according to claim 1, it is characterized in that: described rotary component is tubular structure, its kink is in the outside of the second end of described pipe joint body.
3. non-dismountable pipe joint according to claim 2, it is characterized in that: the outer wall of described rotary component is prismatic surface.
4. the described non-dismountable pipe joint of according to claim 2 to 3 any one, 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 of 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, it 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 that matches with this second outside thread.
6. non-dismountable pipe joint according to claim 5, it is characterized in that: the described second externally threaded pitch is greater than the described first externally threaded pitch.
7. non-dismountable pipe joint according to claim 5, it is characterized in that: the described second externally threaded lift angle is greater than the described first externally threaded lift angle.
8. non-dismountable pipe joint according to claim 5, it is characterized in that: the described second externally threaded pitch is more than or equal to the product of tooth depth and the chisel teeth number of chisel teeth on described boss.
9. the described non-dismountable pipe joint of according to claim 2 to 3 any one, it is characterized in that: described initiative part is an above breach being located at oblique setting on the end face of described rotary component and described pipe joint body first end homonymy, and described follower is the outward extending locating column of being located on the outer wall of described pipe joint body middle part.
10. method that pipe joint prevents from dismantling, described pipe joint comprises pipe joint body and the rotary component that 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 are divided into two independently parts, and process respectively initiative part and the follower that matches on described rotary component and described pipe joint body; When described rotary component applies screw-down torque, 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 at described rotary component when unscrewing moment, 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 true CN103174888A (en) | 2013-06-26 |
| CN103174888B CN103174888B (en) | 2015-03-11 |
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103174888B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114339A (en) * | 2018-10-29 | 2019-01-01 | 奥克斯空调股份有限公司 | A kind of Anti-dismantling connector, connector component and air conditioner |
| WO2022257726A1 (en) * | 2021-06-11 | 2022-12-15 | 浙江盾安人工环境股份有限公司 | Dismantle-prevention connector |
| WO2022257727A1 (en) * | 2021-06-11 | 2022-12-15 | 浙江盾安人工环境股份有限公司 | Dismantle-prevention connector |
| EP4123189A4 (en) * | 2020-04-15 | 2023-08-16 | Zhejiang Dunan Artificial Environment Co., Ltd. | Anti-disassembly joint and anti-disassembly joint assembly |
Citations (4)
| 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 |
| JPH07208661A (en) * | 1994-01-14 | 1995-08-11 | Nippondenso Co Ltd | Refrigerant piping connecting device and manufacture thereof |
| CN202392314U (en) * | 2011-12-22 | 2012-08-22 | 珠海格力电器股份有限公司 | Undetachable coupling |
-
2011
- 2011-12-22 CN CN201110435844.5A patent/CN103174888B/en active Active
Patent Citations (4)
| 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 |
| JPH07208661A (en) * | 1994-01-14 | 1995-08-11 | Nippondenso Co Ltd | Refrigerant piping connecting device and manufacture thereof |
| CN202392314U (en) * | 2011-12-22 | 2012-08-22 | 珠海格力电器股份有限公司 | Undetachable coupling |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109114339A (en) * | 2018-10-29 | 2019-01-01 | 奥克斯空调股份有限公司 | A kind of Anti-dismantling connector, connector component 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 |
| EP4123189A4 (en) * | 2020-04-15 | 2023-08-16 | Zhejiang Dunan Artificial Environment Co., Ltd. | Anti-disassembly joint and anti-disassembly joint assembly |
| WO2022257726A1 (en) * | 2021-06-11 | 2022-12-15 | 浙江盾安人工环境股份有限公司 | Dismantle-prevention connector |
| WO2022257727A1 (en) * | 2021-06-11 | 2022-12-15 | 浙江盾安人工环境股份有限公司 | Dismantle-prevention connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103174888B (en) | 2015-03-11 |
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