CN105020235A - Disassembly-preventing connection pipe nut, connection pipe nut assembly, air conditioner and method for preventing disassembly for connection pipe nut - Google Patents
Disassembly-preventing connection pipe nut, connection pipe nut assembly, air conditioner and method for preventing disassembly for connection pipe nut Download PDFInfo
- Publication number
- CN105020235A CN105020235A CN201510402786.4A CN201510402786A CN105020235A CN 105020235 A CN105020235 A CN 105020235A CN 201510402786 A CN201510402786 A CN 201510402786A CN 105020235 A CN105020235 A CN 105020235A
- Authority
- CN
- China
- Prior art keywords
- union nut
- nut
- auxiliary
- connection pipe
- tamper
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000011148 porous material Substances 0.000 claims description 6
- 239000006200 vaporizer Substances 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/14—Cap nuts; Nut caps or bolt caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
Abstract
The invention discloses a disassembly-preventing connection pipe nut which comprises a connection pipe nut body, a unidirectional rotation structure and an auxiliary nut, wherein the connection pipe nut body is of a cylinder structure with a tapped blind hole in one end; the unidirectional rotation structure is arranged at the outer part of the connection pipe nut body in a sleeving manner; the auxiliary nut is arranged at the outer part of the unidirectional rotation structure in a sleeving manner. When a tightening torque is applied to the auxiliary nut, the auxiliary nut transfers the torque to the connection pipe nut body through the unidirectional rotation structure. When an unscrewing torque is applied to the auxiliary nut, the auxiliary nut rotates around the connection pipe nut body. The invention further discloses a disassembly-preventing connection pipe nut assembly, an air conditioner and a method for preventing disassembly for the connection pipe nut. The refrigerant leakage caused after the conventional pipe joint and the connection pipe nut are disassembled can be effectively avoided.
Description
Technical field
The present invention relates to a kind of pipe connecting structure, be specifically related to a kind of method of tamper-resistant union nut, union nut assembly, air conditioner and union nut Anti-dismantling.
Background technique
Along with ozonosphere constantly destroy, global warming, the greenhouse effect that HFC class refrigeration agent (as R410A) produces also more and more are paid close attention to by industry, conversion to novel environment-friendly refrigerant is imperative, new cooling media (as R290 and R32) is as an alternative GWP(global warming index on the one hand) value is with the obvious advantage compared with R410A, but then due to the flammability issues of new cooling media, domestic use and promote also quite careful, just bringing the problem of production line and Product Safety thus.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 not allow inside the air conditioner chamber of combustible refrigerant to use detachable connector.Existing union nut is generally integral type union nut, and mainly contain thread section and prismatic surface section two-part composition, during by applying clockwise moment to prismatic surface section, thread section rotates together with prismatic surface section, can closely cooperate with pipe joint; But, when applying anticlockwise moment in prismatic surface section, drive thread section to rotate together also simultaneously, therefore can unclamp with coordinating of pipe joint, thus there is dismountable possibility, and can not meet the requirement using and do not allow to use detachable connector inside the air conditioner chamber of combustible refrigerant, the connection between pipe joint and union nut gets loose, can secondary refrigerant leakage be caused, fail the requirement of satisfied assembling standard and Security.
Therefore, a kind of tamper-resistant union nut meeting assembling standard and security requirement is provided to be necessity in fact.
Summary of the invention
The object of the present invention is to provide a kind of method of tamper-resistant union nut, union nut assembly, air conditioner and union nut Anti-dismantling, effectively can avoid the secondary refrigerant leakage problem caused after being disassembled between existing pipe joint and union nut.
In order to achieve the above object, the present invention is achieved through the following technical solutions: a kind of tamper-resistant union nut, is characterized in, comprises:
Union nut body, described union nut body is the cylindrical structure that one end offers tapped blind hole;
Single direction rotation structure, is socketed in the outside of described union nut body;
Auxiliary nut, is socketed in the outside of described single direction rotation structure;
When applying screw-down torque at described auxiliary nut, described auxiliary nut by described single direction rotation structure to described union nut body carry-over moment; When applying to unscrew moment at described auxiliary nut, described auxiliary nut rotates around described union nut body.
Described auxiliary nut is hollow structure, and its outer circumferential face is prismatic.
Described single direction rotation structure is unilateral bearing.
The closed end of described union nut body is provided with the excessively pore through with described tapped blind hole, and the described diameter crossing pore is less than the diameter of described tapped blind hole.
The outer circumferential face of described union nut body is cylndrical surface.
The excircle of opening end of described union nut body and the excircle of closed end are respectively equipped with draw-in groove.
Described tamper-resistant union nut also comprises a pair back-up ring, is separately positioned in the draw-in groove of auxiliary nut.
A kind of tamper-resistant union nut assembly, comprise pipe joint and union nut, be characterized in, described union nut is above-mentioned union nut.
A kind of air conditioner, be characterized in, its vaporizer and connecting tube adopt above-mentioned tamper-resistant union nut assembly to be connected.
A method for union nut Anti-dismantling, comprises union nut, and described union nut comprises, union nut body, and described union nut body is the cylindrical structure that one end offers tapped blind hole; Auxiliary nut, be socketed in the outside of described union nut body, be characterized in, the method includes the steps of:
A single direction rotation structure is processed between described union nut body and auxiliary nut;
When applying screw-down torque at described auxiliary nut, described auxiliary nut by described single direction rotation structure to described union nut body carry-over moment; When applying to unscrew moment at described auxiliary nut, described auxiliary nut rotates around described union nut body.
The method of a kind of tamper-resistant union nut of the present invention, union nut assembly, air conditioner and union nut Anti-dismantling compared with prior art has the following advantages: guarantee that pipe joint and union nut do not get loose, and effectively can avoid the secondary refrigerant leakage problem caused after being disassembled between existing pipe joint and union nut.
Accompanying drawing explanation
Fig. 1 is the schematic diagram after union nut body of the present invention, single direction rotation structure, back-up ring cooperation;
Fig. 2 is the schematic diagram of auxiliary nut in one embodiment of the present of invention;
Fig. 3 is the schematic diagram of union nut body in one embodiment of the present of invention;
Fig. 4 is the schematic diagram of rotational structure in one embodiment of the present of invention;
Fig. 5 is the exploded perspective schematic diagram of tamper-resistant union nut assembly in one embodiment of the present of invention;
Fig. 6 is the decomposition floor map of tamper-resistant union nut assembly in one embodiment of the present of invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, Figure 2, shown in Fig. 3 composition graphs 5 and Fig. 6, a kind of tamper-resistant union nut, comprises: union nut body 101, and described union nut body 101 offers the cylindrical structure of tapped blind hole 1011 for one end; Single direction rotation structure 102, is socketed in the outside of described union nut body 101; Auxiliary nut 103, is socketed in the outside of described single direction rotation structure 102; When applying screw-down torque at described auxiliary nut 103, described auxiliary nut 103 by described single direction rotation structure 102 to described union nut body 101 carry-over moment; When applying to unscrew moment at described auxiliary nut 103, described auxiliary nut 103 rotates around described union nut body 101.
In the present embodiment, consult Fig. 2, described auxiliary nut 103 is hollow structure, and its outer circumferential face is prismatic, is convenient to twisting.
In the present embodiment, consult Fig. 4, described single direction rotation structure 102 is unilateral bearing, its outer circumferential face is cylndrical surface, with the internal diameter interference fit of described auxiliary nut 103, both guarantees synchronous rotary, inner circumferential surface is provided with several roller bearings 1021, the shape of its rolling seat makes it can only roll to a direction, and can produce very large resistance and locked in the other directions.
In the present embodiment, consult Fig. 1, the closed end of described union nut body 101 is provided with the excessively pore 1012 through with described tapped blind hole 1011, and the described diameter crossing pore 1012 is less than the diameter of described tapped blind hole 1011.
In the present embodiment, consult Fig. 3, the outer circumferential face of described union nut body 101 is cylndrical surface, preferably, the excircle of opening end of described union nut body 101 and the excircle of closed end is respectively equipped with draw-in groove 1013.
In the present embodiment, consult Fig. 1, comprise further in a pair back-up ring 104(figure and only draw one), be separately positioned in the draw-in groove 1013 of auxiliary nut 101, its objective is and union nut body 101 is loaded in single direction rotation structure 102 completely, avoid it to skid off.
In another embodiment of the invention, consult Fig. 5 and Fig. 6, a kind of tamper-resistant union nut assembly is provided, comprise pipe joint 200 and union nut 100, described union nut 100 is above-mentioned union nut 100, the outside thread of pipe joint 200 and the tapped blind hole 1011 of union nut 100 suitable.The method of the Anti-dismantling of its correspondence comprises: when when auxiliary nut 103 applies screw-down torque (in certain embodiments for turning clockwise, for being rotated counterclockwise in other embodiment), independently union nut body 101 and auxiliary nut 103 two parts, energy synchronous rotary under the drive of single direction rotation structure 102, can guarantee that union nut body 101 and pipe joint 200 are threaded connection, thus connect vaporizer and connecting tube; But when applying 103 at auxiliary nut and unscrewing moment (in certain embodiments for being rotated counterclockwise, for turning clockwise in other embodiment), auxiliary nut 103 cannot apply moment of torsion by butt tube nut body 101, guarantee that union nut body 101 and pipe joint 200 do not get loose, ensure that closely cooperating between union nut body 101 and pipe joint 200, play the effect of Anti-dismantling.Particularly, when screw-down torque is applied to auxiliary nut 103, because the roller bearing 1021 in single direction rotation structure 102 i.e. unilateral bearing is locked, independently union nut body 101, unilateral bearing 102 and auxiliary nut 103 3 part energy synchronous rotaries, can guarantee that union nut body 101 and pipe joint 200 are threaded connection, thus connect vaporizer and connecting tube, when applying to unscrew moment at auxiliary nut 103, roller bearing 1021 in unilateral bearing 102 rotates, auxiliary nut 103 and unilateral bearing 102 synchronous rotary, and unilateral bearing 102 cannot apply moment of torsion by butt tube nut body 101, guarantee that union nut body 101 and pipe joint 200 do not get loose, ensure that closely cooperating between union nut body 101 and pipe joint 200, play the effect of Anti-dismantling.
In another embodiment of the invention, provide a kind of air conditioner, its vaporizer and connecting tube adopt above-mentioned tamper-resistant union nut assembly to be connected.Tamper-resistant linkage structure can be realized, prevent secondary refrigerant leakage.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a tamper-resistant union nut, is characterized in that, comprises:
Union nut body, described union nut body is the cylindrical structure that one end offers tapped blind hole;
Single direction rotation structure, is socketed in the outside of described union nut body;
Auxiliary nut, is socketed in the outside of described single direction rotation structure;
When applying screw-down torque at described auxiliary nut, described auxiliary nut by described single direction rotation structure to described union nut body carry-over moment; When applying to unscrew moment at described auxiliary nut, described auxiliary nut rotates around described union nut body.
2. tamper-resistant union nut as claimed in claim 1, it is characterized in that, described auxiliary nut is hollow structure, and its outer circumferential face is prismatic.
3. tamper-resistant union nut as claimed in claim 1, it is characterized in that, described single direction rotation structure is unilateral bearing.
4. tamper-resistant union nut as claimed in claim 1, is characterized in that, the closed end of described union nut body is provided with the excessively pore through with described tapped blind hole, and the described diameter crossing pore is less than the diameter of described tapped blind hole.
5. tamper-resistant union nut as claimed in claim 1, it is characterized in that, the outer circumferential face of described union nut body is cylndrical surface.
6. tamper-resistant union nut as claimed in claim 1, is characterized in that, the excircle of opening end of described union nut body and the excircle of closed end are respectively equipped with draw-in groove.
7. tamper-resistant union nut as claimed in claim 6, is characterized in that, comprise a pair back-up ring further, be separately positioned in the draw-in groove of auxiliary nut.
8. a tamper-resistant union nut assembly, comprises pipe joint and union nut, it is characterized in that, described union nut is the union nut described in any one of claim 1 ~ 7.
9. an air conditioner, is characterized in that, its vaporizer and connecting tube adopt tamper-resistant union nut assembly as claimed in claim 8 to be connected.
10. a method for union nut Anti-dismantling, comprises union nut, and described union nut comprises, union nut body, and described union nut body is the cylindrical structure that one end offers tapped blind hole; Auxiliary nut, be socketed in the outside of described union nut body, it is characterized in that, the method includes the steps of:
A single direction rotation structure is processed between described union nut body and auxiliary nut;
When applying screw-down torque at described auxiliary nut, described auxiliary nut by described single direction rotation structure to described union nut body carry-over moment; When applying to unscrew moment at described auxiliary nut, described auxiliary nut rotates around described union nut body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402786.4A CN105020235B (en) | 2015-07-10 | 2015-07-10 | Tamper-resistant union nut, union nut component, the method for air conditioner and union nut Anti-dismantling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402786.4A CN105020235B (en) | 2015-07-10 | 2015-07-10 | Tamper-resistant union nut, union nut component, the method for air conditioner and union nut Anti-dismantling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105020235A true CN105020235A (en) | 2015-11-04 |
| CN105020235B CN105020235B (en) | 2018-01-23 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510402786.4A Active CN105020235B (en) | 2015-07-10 | 2015-07-10 | Tamper-resistant union nut, union nut component, the method for air conditioner and union nut Anti-dismantling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105020235B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387058A (en) * | 2015-11-27 | 2016-03-09 | 国网河南登封市供电公司 | Anti-theft nut sleeve |
| CN105570569A (en) * | 2016-02-04 | 2016-05-11 | 海信（山东）空调有限公司 | Connecting pipe component for air conditioner and air conditioner |
| CN106287034A (en) * | 2016-08-18 | 2017-01-04 | 海信（山东）空调有限公司 | A kind of anti-disassembling connecting pipe assembly, sealing fastening method and air-conditioner |
| CN109373073A (en) * | 2018-11-09 | 2019-02-22 | 天津航空机电有限公司 | A kind of bearing type connection structure |
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| EP0145364A1 (en) * | 1983-11-28 | 1985-06-19 | ALLIED TUBE & CONDUIT CORPORATION | Conduit coupling assembly |
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| CN203434532U (en) * | 2013-07-26 | 2014-02-12 | 中国一冶集团有限公司 | Safety auxiliary device for vertical cable laying |
| CN204828235U (en) * | 2015-07-10 | 2015-12-02 | 上海三菱电机·上菱空调机电器有限公司 | Anti -disassembly formula union nut, takeover nut component and air conditioner |
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2015
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0145364A1 (en) * | 1983-11-28 | 1985-06-19 | ALLIED TUBE & CONDUIT CORPORATION | Conduit coupling assembly |
| CN2547992Y (en) * | 2002-07-09 | 2003-04-30 | 金山 | Non-return anti-dismountting joint |
| CN201125973Y (en) * | 2007-11-30 | 2008-10-01 | 肇庆市自动化仪表二厂有限公司 | Power transmission clutch device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387058A (en) * | 2015-11-27 | 2016-03-09 | 国网河南登封市供电公司 | Anti-theft nut sleeve |
| CN105570569A (en) * | 2016-02-04 | 2016-05-11 | 海信（山东）空调有限公司 | Connecting pipe component for air conditioner and air conditioner |
| CN105570569B (en) * | 2016-02-04 | 2018-04-03 | 海信（山东）空调有限公司 | A kind of air conditioner connecting pipe component and air conditioner |
| CN106287034A (en) * | 2016-08-18 | 2017-01-04 | 海信（山东）空调有限公司 | A kind of anti-disassembling connecting pipe assembly, sealing fastening method and air-conditioner |
| CN106287034B (en) * | 2016-08-18 | 2019-07-16 | 海信（山东）空调有限公司 | A kind of anti-disassembling connecting pipe component, sealing fastening method and air conditioner |
| CN109373073A (en) * | 2018-11-09 | 2019-02-22 | 天津航空机电有限公司 | A kind of bearing type connection structure |
Also Published As
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| CN105020235B (en) | 2018-01-23 |
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