CN209313357U - A kind of self-lock connecting piece - Google Patents
A kind of self-lock connecting piece Download PDFInfo
- Publication number
- CN209313357U CN209313357U CN201920151372.2U CN201920151372U CN209313357U CN 209313357 U CN209313357 U CN 209313357U CN 201920151372 U CN201920151372 U CN 201920151372U CN 209313357 U CN209313357 U CN 209313357U
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- screw thread
- nut
- accommodating chamber
- self
- 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.)
- Expired - Fee Related
Links
- 230000035515 penetration Effects 0.000 claims abstract description 32
- 230000007704 transition Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses a kind of self-lock connecting pieces, for connecting two penetration pipes, comprising: an inner sleeve, the inner sleeve include the cavity for accommodating the penetration pipe, circumferentially arranged with carrier and external screw thread on outer wall of inside race, the external screw thread is located at the two sides of the carrier；Two nuts, the nut include the first accommodating chamber for accommodating the inner sleeve, and one end in first accommodating chamber is equipped with the internal screw thread to match with the external screw thread, are related to pipe fitting field.It after the utility model is using tentatively connecting two penetration pipes with externally threaded inner sleeve, is fastened respectively from both ends using nut, nut is equipped with internal screw thread, and inner sleeve is closely connected as one with penetration pipe, then is connected firmly between two penetration pipes, not easily to fall off；And carrier can play position-limiting action to nut on interior set, clamping, the fixation being also convenient in connection procedure, entire work progress is simply, conveniently.
Description
Technical field
The utility model relates to a kind of pipe fittings, are specifically related to a kind of self-lock connecting piece applied on pipe fitting.
Background technique
Penetration pipe full name " insulating electrical casing pipe for building " is a kind of hard PVC (polyvinyl chloride) pipe, is used for indoors just
Normal environment and high temperature more dirt, shake, have and occur to wear electric wire in the environment of fire hazard, are divided into plastics penetration pipe, stainless steel is worn
Spool, carbon steel penetration pipe etc..Connection between existing two penetration pipes generallys use the mode of direct socket joint, and this mode exists
During practice of construction, be easy to appear and fall off, solution be consolidated on the basis of direct socket joint using glue, but
Glue is added at each socket joint position and very expends working hour and material, and working efficiency is low；Therefore, design a kind of construction is simple,
It is convenient, and the connector of two penetration pipes can be firmly attached, be very it is necessary to.
Utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned background technique, a kind of construction is simple, conveniently is provided, and
And the self-lock connecting piece of two penetration pipes can be firmly attached.
The utility model provides a kind of self-lock connecting piece, for connecting two penetration pipes, comprising:
One inner sleeve, the inner sleeve include the cavity for accommodating the penetration pipe, circumferentially arranged with undertaking on outer wall of inside race
Portion and external screw thread, the external screw thread are located at the two sides of the carrier；
Two nuts, the nut include the first accommodating chamber for accommodating the inner sleeve, and one in first accommodating chamber
End is equipped with the internal screw thread to match with the external screw thread.
Based on the above technical solution, the nut further includes the second accommodating chamber for accommodating the penetration pipe,
Second accommodating chamber is set to one end in nut far from the internal screw thread, and the second accommodating chamber is connected to first accommodating chamber.
Based on the above technical solution, the inner sleeve further includes connecting the outer transition of the external screw thread Yu inner sleeve end
Portion.
Based on the above technical solution, the interior mistake to match with the outer transition part is equipped in first accommodating chamber
Portion is crossed, the interior transition part connects first accommodating chamber and the second accommodating chamber.
Based on the above technical solution, from the external screw thread to inner sleeve end, the diameter of the outer transition part is gradually
Reduce.
Based on the above technical solution, the diameter of the carrier is greater than the diameter at the top of the external screw thread.
Based on the above technical solution, the middle position in the carrier axial direction is equipped with centering graduation mark.
Based on the above technical solution, multiple tread plates are provided on the outer wall of the nut.
Compared with prior art, as follows the advantages of the utility model:
After the utility model is using tentatively connecting two penetration pipes with externally threaded inner sleeve, spiral shell is used from both ends respectively
Cap fastening, nut are equipped with internal screw thread, inner sleeve are closely connected as one with penetration pipe, then jail is connected between two penetration pipes
Gu not easily to fall off；And carrier can play position-limiting action to nut on interior set, clamping, the fixation being also convenient in connection procedure,
Entire work progress is simply, conveniently.
Detailed description of the invention
Fig. 1 is the self-lock connecting piece use state half-section diagram of the utility model embodiment；
Fig. 2 is the inner sleeve structure sectional view of the utility model embodiment；
Fig. 3 is the nut structure cross-sectional view of the utility model embodiment.
Appended drawing reference: 1-penetration pipe, 2-inner sleeves, 21-cavitys, 22-carriers, 23-external screw threads, 24-outer transition
Portion, 3-nuts, the 31-the first accommodating chamber, 32-internal screw threads, the 33-the second accommodating chamber, 34-interior transition parts, 35-tread plates.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.
Shown in Figure 1, the utility model embodiment provides a kind of self-lock connecting piece, for connecting two penetration pipes 1, packet
It includes: an inner sleeve 2, two nuts 3；
The inner sleeve 2 includes the cavity 21 for accommodating the penetration pipe 1, circumferentially arranged with carrier on 2 outer wall of inner sleeve
22 and external screw thread 23, the external screw thread 23 be located at the two sides of the carrier 22；The nut 3 includes for accommodating the inner sleeve
2 the first accommodating chamber 31, one end in first accommodating chamber 31 are equipped with the internal screw thread 32 to match with the external screw thread 23.
In use, after the utility model uses the inner sleeve 2 with external screw thread 23 tentatively to connect two penetration pipes 1, respectively
It is fastened from both ends using nut 3, nut 3 is equipped with internal screw thread 32, inner sleeve 2 and penetration pipe 1 is closely connected as one, then two
It is connected firmly between root penetration pipe 1, it is not easily to fall off；And the carrier 22 in inner sleeve 2 can play position-limiting action to nut 3, also just
Clamping, fixation in connection procedure, entire work progress is simply, conveniently.
In this embodiment, it is preferred that the nut 3 further includes the second accommodating chamber 33 for accommodating the penetration pipe 1,
Second accommodating chamber 33 is set to one end in nut 3 far from the internal screw thread 32, and the second accommodating chamber 33 is accommodated with described first
Chamber 31 is connected to；I.e. 3 part of nut is connected in inner sleeve 2 by the internal screw thread 32 in the first accommodating chamber 31, and 3 another part of nut is logical
It crosses the second accommodating chamber 33 to be connected on penetration pipe 1, and the second accommodating chamber 33 is connected to the first accommodating chamber 31, can increase self-locking connection
The tightness connected between part and penetration pipe 1 plays position-limiting action to inner sleeve 2 to a certain extent, avoids the occurrence of inner sleeve 2 and exists
The outer wall surface of penetration pipe 1 is slided, caused by two penetration pipes 1 be in the presence of loosening.
In this embodiment, it is preferred that the inner sleeve 2 further includes connecting the outer mistake of the external screw thread 23 and 2 end of inner sleeve
Cross portion 24；Further, from the external screw thread 23 to 2 end of inner sleeve, the diameter of the outer transition part 24 is gradually reduced；Transition is set
Portion 24, and from external screw thread 23 to 2 end of inner sleeve, the diameter of transition part 24 is gradually reduced, and the handling ease of inner sleeve 2 is conducive to pacify
The positioning of nut 3 when dress can also be to a certain extent convenient for the connection of external screw thread 23 on internal screw thread 32 on nut 3 and inner sleeve 2
Damage parts caused by colliding between nut 3 and inner sleeve 2 when connection are avoided, while improving connection simplicity degree,
Reduce construction cost.
In this embodiment, it is preferred that in being equipped in first accommodating chamber 31 and matching with the outer transition part 24
Transition part 34, the interior transition part 34 connect first accommodating chamber 31 and the second accommodating chamber 33；First accommodating chamber 31 of nut 3
It is interior equipped with the interior transition part 34 to match with outer transition part 24, the i.e. outside of the internal structure of nut 3 and inner sleeve engaged therewith 2
Structure exact matching, is conducive to the connection of inner sleeve 2 Yu nut 3, further increases the connection tightness of self-lock connecting piece.
In this embodiment, it is preferred that the diameter of the carrier 22 is greater than the diameter at 23 top of external screw thread；And it holds
Socket part 22 protrudes from the flank setting of inner sleeve 2, position-limiting action can be played to it, i.e., in the side of nut 3 when nut 3 is installed
When the side wall of wall and carrier 22 abuts against, nut 3 is completely installed to position, and two penetration pipes 1 are connected up to desired effects, connection
Closely.
In this embodiment, it is preferred that the middle position in 22 axial direction of carrier is equipped with centering graduation mark；Centering
Graduation mark plays indicative function when inner sleeve 2 is connect with penetration pipe 1, is conducive to improve construction efficiency；Further, the nut 3
Outer wall on be provided with multiple tread plates 35；Tread plate 35 is provided with the frictional force for being conducive to improve 3 outer wall of nut, is convenient for nut
3 tighten.
Those skilled in the art can carry out various modifications to the utility model embodiment and modification, if these are modified
With modification within the scope of the claims of the present invention and its equivalent technology, then these modifications and variations are also practical new at this
Within the protection scope of type.
The prior art that the content being not described in detail in specification is known to the skilled person.
Claims (8)
1. a kind of self-lock connecting piece, for connecting two penetration pipes (1) characterized by comprising
One inner sleeve (2), the inner sleeve (2) include the edge on inner sleeve (2) outer wall for accommodating the cavity of the penetration pipe (1) (21)
It is circumferentially with carrier (22) and external screw thread (23), the external screw thread (23) is located at the two sides of the carrier (22)；
Two nuts (3), the nut (3) include the first accommodating chamber (31) for accommodating the inner sleeve (2), and described first accommodates
One end in chamber (31) is equipped with the internal screw thread (32) to match with the external screw thread (23).
2. a kind of self-lock connecting piece as described in claim 1, it is characterised in that: the nut (3) further includes for accommodating
The second accommodating chamber (33) of penetration pipe (1) is stated, second accommodating chamber (33) is set in nut (3) far from the internal screw thread (32)
One end, the second accommodating chamber (33) is connected to first accommodating chamber (31).
3. a kind of self-lock connecting piece as described in claim 1, it is characterised in that: the inner sleeve (2) further includes that connection is described outer
The outer transition part (24) of screw thread (23) and inner sleeve (2) end.
4. a kind of self-lock connecting piece as claimed in claim 3, it is characterised in that: be equipped with and institute in first accommodating chamber (31)
State the interior transition part (34) that outer transition part (24) matches, the interior transition part (34) connects first accommodating chamber (31) and the
Two accommodating chambers (33).
5. a kind of self-lock connecting piece as claimed in claim 3, it is characterised in that: held from the external screw thread (23) to inner sleeve (2)
The diameter in portion, the outer transition part (24) is gradually reduced.
6. a kind of self-lock connecting piece as described in claim 1, it is characterised in that: the diameter of the carrier (22) is greater than described
Diameter at the top of external screw thread (23).
7. a kind of self-lock connecting piece as described in claim 1, it is characterised in that: the interposition in carrier (22) axial direction
It sets place and is equipped with centering graduation mark.
8. a kind of self-lock connecting piece as described in claim 1, it is characterised in that: be provided on the outer wall of the nut (3) more
A tread plate (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920151372.2U CN209313357U (en) | 2019-01-28 | 2019-01-28 | A kind of self-lock connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920151372.2U CN209313357U (en) | 2019-01-28 | 2019-01-28 | A kind of self-lock connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209313357U true CN209313357U (en) | 2019-08-27 |
Family
ID=67681438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920151372.2U Expired - Fee Related CN209313357U (en) | 2019-01-28 | 2019-01-28 | A kind of self-lock connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209313357U (en) |
-
2019
- 2019-01-28 CN CN201920151372.2U patent/CN209313357U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20200128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |