CN105020235B - Tamper-resistant union nut, union nut component, the method for air conditioner and union nut Anti-dismantling - Google Patents
Tamper-resistant union nut, union nut component, the method for air conditioner and union nut Anti-dismantling Download PDFInfo
- Publication number
- CN105020235B CN105020235B CN201510402786.4A CN201510402786A CN105020235B CN 105020235 B CN105020235 B CN 105020235B CN 201510402786 A CN201510402786 A CN 201510402786A CN 105020235 B CN105020235 B CN 105020235B
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- China
- Prior art keywords
- union nut
- nut
- auxiliary
- union
- nut body
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 3
- 239000003507 refrigerant Substances 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000008774 maternal effect Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction 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 kind of tamper-resistant union nut, comprising：Union nut body, the union nut body are the cylindrical structure that one end offers tapped blind hole；Single direction rotation structure, it is socketed in the outside of the union nut body；Auxiliary nut, it is socketed in the outside of the single direction rotation structure；When applying screw-down torque in the auxiliary nut, the auxiliary nut transmits torque by the single direction rotation structure to the union nut body；When applying in the auxiliary nut and unscrewing torque, the auxiliary nut rotates around the union nut body.The invention also discloses a kind of tamper-resistant union nut component.The invention also discloses a kind of air conditioner.The invention also discloses a kind of method of union nut Anti-dismantling.The present invention can effectively avoid secondary refrigerant leakage problem caused by after being disassembled between existing pipe joint and union nut.
Description
Technical field
The present invention relates to a kind of pipe connecting structure, and in particular to a kind of tamper-resistant union nut, union nut component,
The method of air conditioner and union nut Anti-dismantling.
Background technology
As ozone layer constantly destroys, global warming, HFC class refrigerants（Such as R410A）Caused greenhouse effects
Increasingly paid close attention to by industry, the conversion to novel environment-friendly refrigerant is imperative, the new cooling media as replacement（Such as R290 and
R32) one side GWP（Global warming index）Value is with the obvious advantage compared with R410A, but then due to the combustibility of new cooling media
Problem, domestic uses and promotes the problem for also quite with caution, thus just bringing production line and Product Safety.It is common at present
The detachable air conditioner indoor of working medium all connects evaporator and connecting tube using pipe joint with the mode of union nut.And use
Do not allow to use detachable connector on the inside of the air conditioner chamber of combustible refrigerant.Existing union nut is usually integral type adapter
Nut, be mainly made up of thread segment and prismatic surface section two parts, by prismatic surface section apply clockwise moment when, thread segment with
Prismatic surface section rotates together, can be fitted close with pipe joint；But when applying anticlockwise moment in prismatic surface section, Que Yetong
When drive thread segment to rotate together, therefore can be unclamped with the cooperation of pipe joint, thus dismountable possibility be present, and can not expire
Foot using the requirement not allowed on the inside of the air conditioner chamber of combustible refrigerant using detachable connector, pipe joint and union nut it
Between connection release, secondary refrigerant leakage can be caused, fail the requirement for meeting assembling standard and security.
Meet assembling standard and the tamper-resistant union nut of security requirement is actually necessary therefore it provides a kind of.
The content of the invention
It is an object of the invention to provide a kind of tamper-resistant union nut, union nut component, air conditioner and adapter spiral shell
The method of female Anti-dismantling, it can effectively avoid secondary refrigerant leakage problem caused by 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, it is special
Putting is, comprising：
Union nut body, the union nut body are the cylindrical structure that one end offers tapped blind hole；
Single direction rotation structure, it is socketed in the outside of the union nut body；
Auxiliary nut, it is socketed in the outside of the single direction rotation structure；
When applying screw-down torque in the auxiliary nut, the auxiliary nut is by the single direction rotation structure to described
Union nut body transmits torque；When applying in the auxiliary nut and unscrewing torque, the auxiliary nut is around the adapter spiral shell
Maternal body rotation.
Described auxiliary nut is hollow structure, and its outer peripheral face is prismatic.
Described single direction rotation structure is unilateral bearing.
The blind end of described union nut body is provided with the pore of crossing with tapped blind hole insertion, and described cross is managed
The diameter in hole is less than the diameter of the tapped blind hole.
The outer peripheral face of described union nut body is the face of cylinder.
Neck is respectively equipped with the excircle of openend and the excircle of blind end of described union nut body.
Described tamper-resistant union nut also includes a pair of back-up rings, is separately positioned in the neck of auxiliary nut.
A kind of tamper-resistant union nut component, comprising pipe joint and union nut, is characterized in, described union nut
For above-mentioned union nut.
A kind of air conditioner, is characterized in, its evaporator and connecting tube are connected using above-mentioned tamper-resistant union nut component
Connect.
A kind of method of union nut Anti-dismantling, comprising union nut, the union nut includes, union nut body,
The union nut body is the cylindrical structure that one end offers tapped blind hole；Auxiliary nut, it is socketed in the union nut
The outside of body, it is 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 in the auxiliary nut, the auxiliary nut is by the single direction rotation structure to described
Union nut body transmits torque；When applying in the auxiliary nut and unscrewing torque, the auxiliary nut is around the adapter spiral shell
Maternal body rotation.
A kind of tamper-resistant union nut of the present invention, union nut component, the method for air conditioner and union nut Anti-dismantling
There is advantages below compared with prior art：Ensure that pipe joint and union nut do not release, can effectively avoid existing pipe joint and
Secondary refrigerant leakage problem caused by after being disassembled between union nut.
Brief description of the drawings
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 component in one embodiment of the present of invention；
Fig. 6 is the decomposition floor map of tamper-resistant union nut component in one embodiment of the present of invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferable specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, Figure 2, shown in Fig. 3 combinations Fig. 5 and Fig. 6, a kind of tamper-resistant union nut, comprising：Union nut body
101, the union nut body 101 is the cylindrical structure that one end offers tapped blind hole 1011；Single direction rotation structure 102,
It is socketed in the outside of the union nut body 101；Auxiliary nut 103, it is socketed in the outside of the single direction rotation structure 102；
When applying screw-down torque in the auxiliary nut 103, the auxiliary nut 103 is by the single direction rotation structure 102 to institute
State union nut body 101 and transmit torque；When the auxiliary nut 103 apply unscrew torque when, the auxiliary nut 103 around
The union nut body 101 rotates.
In the present embodiment, refering to Fig. 2, described auxiliary nut 103 is hollow structure, its outer peripheral face be it is prismatic, just
In twisting.
In the present embodiment, refering to Fig. 4, described single direction rotation structure 102 is unilateral bearing, and its outer peripheral face is cylinder
Face, it is interference fitted with the internal diameter of the auxiliary nut 103, ensures the two synchronous rotary, inner circumferential surface is provided with several roller bearings
1021, it, which rolls the shape of seat, makes it to be rolled to direction, and can produce very big resistance in the other directions and
It is locked.
In the present embodiment, refering to Fig. 1, the blind end of described union nut body 101 is provided with blind with the screw thread
What hole 1011 penetrated crosses pore 1012, and the diameter for crossing pore 1012 is less than the diameter of the tapped blind hole 1011.
In the present embodiment, refering to Fig. 3, the outer peripheral face of described union nut body 101 is the face of cylinder, it is preferable that institute
Neck 1013 is respectively equipped with the excircle of openend and the excircle of blind end of the union nut body 101 stated.
In the present embodiment, refering to Fig. 1, further comprising a pair of back-up rings 104（One is only drawn in figure）, it is separately positioned on
In 101 neck 1013, the purpose is to will take over nut body 101 to be entirely enclosed in single direction rotation structure 102, its cunning is avoided
Go out.
In another embodiment of the invention, refering to Fig. 5 and Fig. 6, there is provided a kind of tamper-resistant union nut component, comprising
Pipe joint 200 and union nut 100, described union nut 100 are above-mentioned union nut 100, the external screw thread of pipe joint 200
It is adapted with the tapped blind hole 1011 of union nut 100.The method of its corresponding Anti-dismantling includes：Applied when in auxiliary nut 103
When adding screw-down torque（It is rotate counterclockwise in other embodiment in certain embodiments to turn clockwise）, it is independent
Union nut body 101 and 103 two parts of auxiliary nut, the energy synchronous rotary under the drive of single direction rotation structure 102, can be true
Protect union nut body 101 to be connected through a screw thread with pipe joint 200, so as to connect evaporator and connecting tube；But when in auxiliary spiral shell
When torque is unscrewed in mother's application 103（It is rotate counterclockwise in certain embodiments, is to turn clockwise in other embodiment）,
Auxiliary nut 103 can not butt tube nut body 101 apply moment of torsion, it is ensured that union nut body 101 is not loose with pipe joint 200
It is de-, it is ensured that the tight fit between union nut body 101 and pipe joint 200, to play the effect of Anti-dismantling.Specifically, it is right
When auxiliary nut 103 applies screw-down torque, because roller bearing 1021 of the single direction rotation structure 102 i.e. in unilateral bearing is locked, solely
103 3 vertical union nut body 101, unilateral bearing 102 and auxiliary nut part energy synchronous rotaries, it can be ensured that union nut
Body 101 is connected through a screw thread with pipe joint 200, so as to connect evaporator and connecting tube, is unscrewed when applying in auxiliary nut 103
During torque, the roller bearing 1021 in unilateral bearing 102 rotates, auxiliary nut 103 and the synchronous rotary of unilateral bearing 102, and one-way shaft
Hold 102 can not butt tube nut body 101 apply moment of torsion, it is ensured that union nut body 101 does not release with pipe joint 200, it is ensured that
Tight fit between union nut body 101 and pipe joint 200, play the effect of Anti-dismantling.
In another embodiment of the invention, there is provided a kind of air conditioner, its evaporator and connecting tube use above-mentioned tamper
Unload the connection of formula union nut component.Tamper-resistant attachment structure can be achieved, prevent secondary refrigerant leakage.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. a kind of tamper-resistant union nut, it is characterised in that include：
Union nut body, the union nut body are the cylindrical structure that one end offers tapped blind hole；
Single direction rotation structure, it is socketed in the outside of the union nut body；
Auxiliary nut, it is socketed in the outside of the single direction rotation structure；
When applying screw-down torque in the auxiliary nut, the auxiliary nut is by the single direction rotation structure to the adapter
Nut body transmits torque；When applying in the auxiliary nut and unscrewing torque, the auxiliary nut is around the union nut sheet
Body rotates；
Wherein, the single direction rotation structure includes unilateral bearing, and the internal diameter of its outer peripheral face and the auxiliary nut is interference fitted, its
Inner peripheral surface be provided with several roller bearings and corresponding roller bearing is rolled in one direction and in the locked rolling seat in another direction,
So as to cause union nut body, unilateral bearing and auxiliary nut three's synchronous rotary when roller bearing is locked, or in roller bearing rolling
Cause auxiliary nut and unilateral bearing synchronous rotary when dynamic and unilateral bearing can not butt tube nut body application moment of torsion；
Neck is respectively equipped with the excircle of openend and the excircle of blind end of described union nut body；A pair of gears
Circle, is separately positioned in the neck of union nut body, is entirely enclosed in single direction rotation structure, keeps away so as to will take over nut body
Exempt from it to skid off.
2. tamper-resistant union nut as claimed in claim 1, it is characterised in that described auxiliary nut is hollow structure,
Its outer peripheral face is prismatic.
3. tamper-resistant union nut as claimed in claim 1, it is characterised in that the blind end of described union nut body
The pore of crossing with tapped blind hole insertion is provided with, and the diameter for crossing pore is less than the diameter of the tapped blind hole.
4. tamper-resistant union nut as claimed in claim 1, it is characterised in that the outer peripheral face of described union nut body
For the face of cylinder.
5. a kind of tamper-resistant union nut component, includes pipe joint and union nut, it is characterised in that described union nut
For the union nut described in any one of claim 1 ~ 4.
6. a kind of air conditioner, it is characterised in that its evaporator and connecting tube are taken over using tamper-resistant as claimed in claim 5
Nut assembly connects.
7. a kind of method of union nut Anti-dismantling, comprising union nut, the union nut includes, union nut body, institute
State the cylindrical structure that union nut body offers tapped blind hole for one end；Auxiliary nut, it is socketed in the union nut sheet
The outside of body, it is characterised 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 in the auxiliary nut, the auxiliary nut is by the single direction rotation structure to the adapter
Nut body transmits torque；When applying in the auxiliary nut and unscrewing torque, the auxiliary nut is around the union nut sheet
Body rotates；
The single direction rotation structure includes unilateral bearing, and the internal diameter of its outer peripheral face and the auxiliary nut is interference fitted, its inner circumferential
Face be provided with several roller bearings and corresponding roller bearing is rolled in one direction and in the locked rolling seat in another direction, so as to
Cause union nut body, unilateral bearing and auxiliary nut three's synchronous rotary when roller bearing is locked, or when roller bearing rolls
So that auxiliary nut and unilateral bearing synchronous rotary and unilateral bearing can not butt tube nut body apply moment of torsion；
Neck is respectively equipped with the excircle of openend and the excircle of blind end of described union nut body；A pair of gears
Circle, is separately positioned in the neck of union nut body, is entirely enclosed in single direction rotation structure, keeps away so as to will take over nut body
Exempt from it to skid off.
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 CN105020235A (en) | 2015-11-04 |
| CN105020235B true CN105020235B (en) | 2018-01-23 |
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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 |
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| Country | Link |
|---|---|
| CN (1) | CN105020235B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387058B (en) * | 2015-11-27 | 2017-09-22 | 国网河南登封市供电公司 | A kind of anti-theft screw cap set |
| 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 |
| 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 |
| CN109373073B (en) * | 2018-11-09 | 2020-11-13 | 天津航空机电有限公司 | Bearing type connecting structure |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4592574A (en) * | 1983-11-28 | 1986-06-03 | Allied Tube & Conduit Corporation | Conduit coupling assembly and method of use |
| 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 |
| CN102094889A (en) * | 2011-03-09 | 2011-06-15 | 贵州大正展业科技开发有限公司 | Method for preventing fastening nut from being stolen, anti-theft nut and special sleeve tool |
| CN202792417U (en) * | 2012-09-18 | 2013-03-13 | 珠海格力电器股份有限公司 | Air conditioner and connecting device of indoor unit and outdoor unit of air conditioner |
| CN202992435U (en) * | 2012-12-18 | 2013-06-12 | 珠海格力电器股份有限公司 | Metal pipe connecting device |
| CN203082399U (en) * | 2013-02-20 | 2013-07-24 | 珠海格力电器股份有限公司 | Pipeline connecting component |
| 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
- 2015-07-10 CN CN201510402786.4A patent/CN105020235B/en active Active
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| Publication number | Publication date |
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| CN105020235A (en) | 2015-11-04 |
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