CN103029902B - Internal thread protection device for nut - Google Patents
Internal thread protection device for nut Download PDFInfo
- Publication number
- CN103029902B CN103029902B CN201210593340.0A CN201210593340A CN103029902B CN 103029902 B CN103029902 B CN 103029902B CN 201210593340 A CN201210593340 A CN 201210593340A CN 103029902 B CN103029902 B CN 103029902B
- Authority
- CN
- China
- Prior art keywords
- nut
- knob
- distending
- rib
- tubulose skirt
- 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.)
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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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L2201/00—Special arrangements for pipe couplings
- F16L2201/80—Dust covers
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- Sealing Devices (AREA)
Abstract
The invention discloses an internal thread protection device for a nut, which is mainly applied to an air conditioner connecting pipe for keeping the air tightness of an air conditioner and preventing dust from entering the air conditioner. The nut inner cavity of the device is provided with a tubular skirt sleeve; the skirt borders of the tubular skirt sleeve are embedded in the outer end part of the nut; at least two expansion sheets of which one ends are connected to the tubular skirt sleeve while the other ends are free ends are uniformly arranged on a fitting part of the tubular skirt sleeve and the internal thread inner cavity of the nut; the inner side of the nut is provided with a tool recess; the free end of each expansion sheet is provided with a lug which can be embedded into the tool recess; each expansion sheet is provided with a chock block; a ridge shaft knob is matched in the circular cavity of the tubular skirt sleeve; the knob end of the ridge shaft knob is used for plugging the port of the entire tubular skirt sleeve; a ridge shaft of the ridge shaft knob is provided with an expansion ridge which is matched with axial gaps formed among the chock blocks on all the expansion sheets respectively; and after the ridge shaft knob is rotated by a certain angle, the expansion ridge is used for pushing the chock blocks, the lugs at the free ends of the expansion sheets are embedded into the tool recess, and the tubular skirt sleeve is hermetically sleeved on the nut.
Description
[technical field]
The present invention relates to the protective device of nut, be specifically related to the nut inner thread protective device that air-conditioning keeps air conditioner connecting pipe dust-proof effect after production and assembly and dismounting.
[background technology]
At present, air-conditioning is in production and assembly and removing new clothes, for keep air-conditioning connection pipe air-tightness and prevent that dust from entering air conditioner connecting pipe, air conditioner connecting pipe external tapping need to be sealed, the general manual operation plug that will prevent dust that adopts is screwed on coupling nut, as existing dustproof plug is first, adopt plastic whorl plug, this plug is to match with the nut thread of air conditioner connecting pipe, when use, manually plastic whorl plug is slowly screwed into air conditioner connecting pipe, even like this, accidentally will cause nut thread damage, affect the air-tightness of the connection pipe of air-conditioning, do not have the effect that prevents dust, in addition, this plastic whorl plug is more time-consuming manually-operated time, thereby reduces production efficiency when operating cost, increases artificial productive costs, increases air-conditioning holistic cost.
[summary of the invention]
The invention provides a kind of simple in structure, control conveniently, air-tightness is good and have a nut inner thread protective device that prevents dust effect.
In order to realize foregoing invention object, the technical solution used in the present invention is:
Nut inner thread protective device, the nut intracavity of this device is provided with the tubulose skirt cover with its negative thread with certain interval, the shirt rim of tubulose skirt cover is nested in the outer end of nut, tubulose skirt cover inside be and the round empty cavity of nut concentric, tubulose skirt overlap and nut inner thread inner chamber mating part on be evenly provided with at least two one end and be connected in that tubulose skirt puts and the other end is free-ended distending sheet; Described nut inner thread inside top is provided with a relief groove, and the free end top outer of each distending sheet is provided with the projection that can embed relief groove, and the inner side of each distending sheet is provided with the block that stretches into round empty cavity; In the round empty cavity of tubulose skirt cover, be combined with rib axle knob, the whole tubulose skirt cover of the knob end shutoff port of rib axle knob, the rib axle of rib axle knob be provided with and all distending sheets on block between the distending rib that coordinates respectively of the endplay that forms, the distending rib of rib axle knob certain angle on it promotes block to be made projection on distending sheet free end embed relief groove tubulose skirt cover sealing shroud is connected on nut.
Nut inner thread protective device as above, described nut is copper nut.
Nut inner thread protective device as above, the elastic body that described tubulose skirt cover is one of the forming.
Nut inner thread protective device as above, described tubulose skirt puts the swivelling chute that is also provided with the knob handle anglec of rotation of controlling rib axle knob.
Nut inner thread protective device as above, the hard moulding that described rib axle knob is one of the forming.
Nut inner thread protective device as above, the rib axle top of described rib axle knob is provided with tubulose skirt cover latch and coordinates and rotatable bearing pin.
The invention has the beneficial effects as follows:
In the round empty cavity of tubulose skirt cover of the present invention, be combined with rib axle knob, the whole tubulose skirt cover of the knob end shutoff opening of rib axle knob, the rib axle of rib axle knob be provided with and all distending sheets on block between the distending rib that coordinates respectively of the endplay that forms, the distending rib of rib axle knob certain angle on it promotes block to be made projection on distending sheet free end embed relief groove tubulose skirt cover sealing shroud is connected on nut; Make like this between the nut relief groove on tubulose skirt cover and air conditioner connecting pipe in tightr swelling state, and tubulose skirt cover also retains certain gap with nut inner thread inner chamber mating part, keeping air conditioner connecting pipe to there is dust-proof effect simultaneously, can't damage the negative thread of nut.
Compare in the past by expansion plug and bulged tube jam-pack between air conditioner connecting pipe place, control convenient simple and direct, effectively raise air-conditioning produce packaging efficiency, reduced productive costs, and repeatedly install and connect the negative thread that can not damage nut, the dismounting while being simultaneously convenient to remove new clothes connects.
[brief description of the drawings]
Fig. 1 is the sectional structure schematic diagram of nut of the present invention;
Fig. 2 is the structural representation of looking up of nut of the present invention;
Fig. 3 is the sectional structure schematic diagram of tubulose skirt cover of the present invention;
Fig. 4 is the side-looking structural representation of tubulose skirt cover of the present invention;
Fig. 5 is the structural representation of looking up of tubulose skirt cover of the present invention;
Fig. 6 is the main TV structure schematic diagram of rib axle knob of the present invention;
Fig. 7 is the side-looking structural representation of rib axle knob of the present invention;
Fig. 8 is assembly relation sectional structure schematic diagram of the present invention;
Fig. 9 is the sectional structure schematic diagram that in assembly relation of the present invention, pretension tubulose skirt does not overlap;
Figure 10 is the side-looking structural representation of Fig. 9;
Figure 11 is the part sectional structure schematic diagram of tubulose skirt cover in Pre strained state in assembly relation of the present invention;
Figure 12 is the side-looking structural representation of Figure 10.
[detailed description of the invention]
Nut inner thread protective device, as shown in Figures 1 to 12, be mainly used in air-conditioning production and assembly and remove when new clothes in order to keep air-conditioning air-tightness and to prevent the air conditioner connecting pipe place that dust enters, nut 1 inner chamber of this device is provided with the tubulose skirt cover 2 with its negative thread with certain interval, the shirt rim 20 of tubulose skirt cover 2 is nested in the outer end of nut 1, tubulose skirt cover 2 inside are and the round empty cavity 21 of nut concentric, on tubulose skirt cover 2 and nut 1 negative thread inner chamber mating part, being evenly provided with four one end is connected on tubulose skirt cover 2 and the other end is free-ended distending sheet 22, be provided with a relief groove 3 in nut 1 negative thread inside top, the free end top outer of each distending sheet 22 is provided with the projection 220 that can embed relief groove 3, and the inner side of each distending sheet 22 is provided with the block 221 that stretches into round empty cavity, in the round empty cavity 21 of tubulose skirt cover 2, be combined with rib axle knob 4, be provided with on rib axle 41 tops of rib axle knob 4 and overlap 2 latches with tubulose skirt and coordinates also rotatable bearing pin 5, the whole tubulose skirt of knob end 40 shutoff of rib axle knob 4 overlaps 2 ports, the rib axle 41 of rib axle knob 4 be provided with and all distending sheets 22 on block 221 between the distending rib 410 that coordinates respectively of endplay that forms, as shown in Fig. 9 to Figure 12, when rib axle knob 4 turns an angle, distending rib 410 on rib axle knob 4 promotes block 221 makes the projection 220 on distending sheet 22 free ends embed relief groove 3, tubulose skirt is overlapped to 2 sealing shrouds and be connected on nut 1, like this, make between nut 1 relief groove 3 on tubulose skirt cover 2 and air conditioner connecting pipe in tightr swelling state, and tubulose skirt cover 2 also retains certain gap with nut 1 negative thread inner chamber mating part, keeping air conditioner connecting pipe to there is dust-proof effect simultaneously, can't damage the negative thread of nut 1.
Wherein, described nut 1 is copper nut, tubulose skirt cover 2 elastic bodys that are one of the forming, the hard moulding that rib axle knob 4 is one of the forming.
As shown in Figure 5, on tubulose skirt cover 2, be also provided with the swivelling chute 23 of knob handle 42 anglecs of rotation of controlling rib axle knob 4, knob handle 42 anglecs of rotation that concrete swivelling chute 23 limits rib axle knob 4 are 45 °, now tight tension force maximum between nut 1 relief groove 3 on tubulose skirt cover 2 and air conditioner connecting pipe, swelling effect is best.
When assembling, first rib axle knob 4 is put in tubulose skirt cover 2, coordinated compact; Then, the tubulose skirt cover 2 assembling is put in copper nut 1, in the swivelling chute 23 of tubulose skirt cover 2, the knob handle 42 of rotation rib axle knob 4 reaches 45 °, distending rib 410 on rib axle 41 rotates with rib axle knob 4, distending rib 410 promotes the block 221 of distending sheet 22 and makes distending sheet 22 distendings, and the projection 220 on distending sheet 22 free ends embeds in relief groove 3, tubulose skirt is overlapped to 2 sealing shrouds and be connected on nut 1; When dismounting, only need the knob handle 42 of reverse 45 ° of rotation rib axle knobs 4, allow rib axle knob 4 overlap 2 application forces to tubulose skirt and cancel, thereby the projection 220 that tubulose skirt is overlapped on 2 distending sheet 22 free ends exits from relief groove 3, can take out related accessory.
The above embodiment just, for preferred embodiment of the present invention, not limits practical range of the present invention with this, and the equivalence that all shapes according to the present invention, structure and principle are done changes, and all should be covered by protection scope of the present invention.
Claims (6)
1. nut inner thread protective device, is characterized in that:
The nut intracavity of this device is provided with the tubulose skirt cover with its negative thread with certain interval, the shirt rim of tubulose skirt cover is nested in the outer end of nut, tubulose skirt cover inside be and the round empty cavity of nut concentric, tubulose skirt overlap and nut inner thread inner chamber mating part on be evenly provided with at least two one end and be connected in that tubulose skirt puts and the other end is free-ended distending sheet;
Described nut inner thread inside top is provided with a relief groove, and the free end top outer of each distending sheet is provided with the projection that can embed relief groove, and the inner side of each distending sheet is provided with the block that stretches into round empty cavity;
In the round empty cavity of tubulose skirt cover, be combined with rib axle knob, the whole tubulose skirt cover of the knob end shutoff port of rib axle knob, the rib axle of rib axle knob be provided with and all distending sheets on block between the distending rib that coordinates respectively of the endplay that forms, the distending rib of rib axle knob certain angle on it promotes block to be made projection on distending sheet free end embed relief groove tubulose skirt cover sealing shroud is connected on nut.
2. nut inner thread protective device according to claim 1, is characterized in that, described nut is copper nut.
3. nut inner thread protective device according to claim 1, is characterized in that, the elastic body that described tubulose skirt cover is one of the forming.
4. nut inner thread protective device according to claim 1, is characterized in that, described tubulose skirt puts the swivelling chute that is also provided with the knob handle anglec of rotation of controlling rib axle knob.
5. according to the nut inner thread protective device described in claim 1 or 4, it is characterized in that the hard moulding that described rib axle knob is one of the forming.
6. according to the nut inner thread protective device described in claim 1 or 4, it is characterized in that, the rib axle top of described rib axle knob is provided with tubulose skirt cover latch and coordinates and rotatable bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210593340.0A CN103029902B (en) | 2012-12-31 | 2012-12-31 | Internal thread protection device for nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210593340.0A CN103029902B (en) | 2012-12-31 | 2012-12-31 | Internal thread protection device for nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103029902A CN103029902A (en) | 2013-04-10 |
| CN103029902B true CN103029902B (en) | 2014-08-13 |
Family
ID=48017396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210593340.0A Active CN103029902B (en) | 2012-12-31 | 2012-12-31 | Internal thread protection device for nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103029902B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664536A (en) * | 2020-12-16 | 2021-04-16 | 芜湖通和汽车管路系统股份有限公司 | Nut protection plug cap structure for automobile pipeline |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE28124E (en) * | 1973-02-09 | 1974-08-20 | Method of sealing tubing | |
| FR2427268A1 (en) * | 1978-05-31 | 1979-12-28 | Hamon Henri | Plug for sealing empty underground telephone cable sleeving - consists of plug screwed into sleeve and fitted with cap |
| DE20218347U1 (en) * | 2002-11-27 | 2003-02-20 | Weisheit Thomas | sealing plug |
| US7478649B2 (en) * | 2004-06-30 | 2009-01-20 | Brasscorp Limited | Absorbent plugs and caps for air conditioning and refrigeration fittings |
| CN2920865Y (en) * | 2006-06-26 | 2007-07-11 | 浙江海亮股份有限公司 | Blocking caps for metal pipe ends sealing |
| US7946440B2 (en) * | 2007-11-13 | 2011-05-24 | Kvt Koenig, Llc | Two-piece expandable sealing plug |
| CN201944484U (en) * | 2010-12-21 | 2011-08-24 | 潘炎忠 | Air conditioner connecting tube plug |
| CN202510923U (en) * | 2012-04-11 | 2012-10-31 | 桐庐千丁科技有限公司 | Expansion pipe with openings for air conditioner connection pipe plug |
| CN203143297U (en) * | 2012-12-31 | 2013-08-21 | 张如诗 | Protective device for internal nut threads |
-
2012
- 2012-12-31 CN CN201210593340.0A patent/CN103029902B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103029902A (en) | 2013-04-10 |
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| C14 | Grant of patent or utility model | ||
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