CN202646259U - Telescopic pipe connection structure - Google Patents
Telescopic pipe connection structure Download PDFInfo
- Publication number
- CN202646259U CN202646259U CN 201220240303 CN201220240303U CN202646259U CN 202646259 U CN202646259 U CN 202646259U CN 201220240303 CN201220240303 CN 201220240303 CN 201220240303 U CN201220240303 U CN 201220240303U CN 202646259 U CN202646259 U CN 202646259U
- Authority
- CN
- China
- Prior art keywords
- thread
- cap
- thread cap
- core
- telescopic pipe
- 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
Images
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model relates to the technical field of telescopic pipes, in particular to a telescopic pipe connection structure. The telescopic pipe connection structure comprises a big pipe, a small pipe, a thread core and a thread cap. A connection part is formed at the lower end of the thread core; the outer wall of the upper end of the thread core is provided with a taper external thread; the small pipe is fixedly arranged on the connection part; the inner wall of the thread cap is provided with a taper internal thread; the thread cap and the thread core are connected in the manner of matching through the taper external thread and the taper internal thread; the thread cap is vertically provided with an expansion tank; and the big pipe is sheathed onto the thread cap. The telescopic pipe connection structure is reasonable in structural setting and low in manufacturing cost.
Description
Technical field
The utility model relates to the telescopic pipe technical field, particularly a kind of telescopic pipe connecting structure.
Background technique
Two kinds of different bodys of diameter interconnect, and use very general, well known at mechanical field.Linkage structure between the different body of existing diameter is generally by bassoon, tubule and fixedly the fixing device of bassoon and tubule form, wherein fixing device is generally the accessories such as screw-nut, this Placement, although degree of being connected firmly is high, the dilatability between bassoon and the tubule is unadjustable, and perhaps dilatability is regulated inconvenient, make troubles to use, be necessary to improve being provided with structure.
The model utility content
The purpose of this utility model is for the defective of prior art and deficiency, and a kind of simple in structure, telescopic pipe connecting structure that fabricating cost is low is provided.
For achieving the above object, the utility model is by the following technical solutions:
A kind of telescopic pipe connecting structure described in the utility model comprises bassoon, tubule, and thread core and thread cap, described thread core lower end forms joint, and thread core upper end outer wall is provided with the tapering outside thread, and described tubule is fixed on the joint; Described thread cap inwall is provided with the tapering internal thread, and described thread cap is connected with the tapering screw-internal thread fit by the tapering outside thread with thread core, vertically is provided with expansion slot on the described thread cap, and described bassoon is sheathed on the thread cap.
Further, be provided with pre-tightening apparatus between described thread core and the thread cap.
Wherein, described pre-tightening apparatus comprises locating stud, and Compress Spring is located at the through hole at thread cap top, is located at the lockhole at thread core top; Described locating stud top forms cap, and the locating stud lower end forms the lock section; Described locating stud lower end is passed through hole and lockhole successively, and is fixedly connected with lockhole by the lock section, is provided with Compress Spring between described cap and the thread cap.
Further, described Compress Spring is sheathed on the locating stud.
Further, be provided with back-up ring between described Compress Spring and the thread cap.
The utility model beneficial effect is: thread cap described in the utility model is connected with the tapering screw-internal thread fit by the tapering outside thread with thread core, vertically be provided with expansion slot on the described thread cap, described tubule is fixed on the thread core, described bassoon is sheathed on the thread cap, the length that bassoon is sheathed on the thread cap can be decided as required, after threaded together cap slowly, thread cap slowly expands under tapering outside thread and tapering screw-internal thread fit and opens, between bassoon and thread cap, form certain frictional force, until the locking bassoon.The utility model structure arranges rationally, and fabricating cost is low.
Description of drawings
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is exploded perspective view of the present utility model.
Among the figure:
1, bassoon; 2, locating stud; 3, thread cap; 4, thread core;
5, tubule; 6, back-up ring; 7, Compress Spring;
21, cap; 22, lock section;
31, tapering internal thread; 32, through hole; 33, expansion slot;
41, tapering outside thread; 42, lockhole; 43, joint.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Embodiment one
Such as Fig. 1, shown in Figure 2, a kind of telescopic pipe connecting structure described in the utility model comprises bassoon 1, tubule 5, and thread core 4 and thread cap 3 also are that above-mentioned several parts consist of the utility model agent structure.
Described thread core 4 lower ends form joint 43, and thread core 4 upper end outer walls are provided with tapering outside thread 41, and described tubule 5 is fixed on the joint 43.
Described thread cap 3 inwalls are provided with tapering internal thread 31, vertically are provided with expansion slot 33 on the described thread cap 3, and described bassoon 1 is sheathed on the thread cap 3.During non-locking, the length that bassoon 1 is sheathed on the thread cap 3 can be determined as required.
Described thread cap 3 is connected by tapering outside thread 41 and tapering internal thread 31 with thread core 4.Because thread cap 3 walls are provided with expansion slot 33, when threaded together cap 3 slowly, thread cap 3 walls will slowly expand and open, and produce certain frictional force between thread cap 3 and bassoon 1, until with bassoon 1 locking.
When needing adjustment sleeve to be located at length on the thread cap 3, slowly turn on thread cap 3, thread cap 3 walls slowly tighten, and the frictional force between thread cap 3 and the bassoon 1 will progressively reduce, until being sheathed on the thread cap 3 of can being free to slide of bassoon 1, can adjustment sleeve be located at the length of bassoon 1 on the thread cap 3.
Embodiment two
The present embodiment and embodiment's one difference are to be provided with pre-tightening apparatus between described thread core 4 and the thread cap 3.Particularly, described pre-tightening apparatus comprises locating stud 2, and Compress Spring 7 is located at the through hole 32 at thread cap 3 tops, is located at the lockhole 42 at thread core 4 tops; Described locating stud 2 tops form cap 21, and locating stud 2 lower ends form lock section 22; Described locating stud 2 lower ends are passed through hole 32 and lockhole 42 successively, and are fixedly connected with lockhole 42 by lock section 22.Described lockhole 42 is irregular hole, and lockhole 42 is passed in lock section 22, rotates to an angle to achieve a fixed connection with lockhole 42.
Be provided with Compress Spring 7 between described cap 21 and the thread cap 3, the utility model preferred compressed spring 7 is sheathed on the locating stud 2.Described Compress Spring 7 is in compressive state always, also namely give all the time pretightening force between thread cap 3 and the thread core 4 by Compress Spring 7, when thread cap 3 is twisted tightlyer, Compress Spring 7 degrees of compression are higher, pretightening force between thread cap 3 and the thread core 4 is larger, indirectly, the frictional force between bassoon 1 and the thread cap 3 is larger, namely locks tightlyer.
Be provided with back-up ring 6 between the preferred described Compress Spring 7 of the utility model and the thread cap 3, the elastic force of Compress Spring 7 is transmitted to thread cap 3 through back-up ring 6, so arranges, and Compress Spring 7 is installed more convenient.
Other structure of the present embodiment is all identical with embodiment one, no longer is repeated in this description.
The above only is better embodiment of the present utility model, therefore all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (5)
1. telescopic pipe connecting structure, it is characterized in that: comprise bassoon (1), tubule (5), thread core (4) and thread cap (3), described thread core (4) lower end forms joint (43), thread core (4) upper end outer wall is provided with tapering outside thread (41), and described tubule (5) is fixed on the joint (43); Described thread cap (3) inwall is provided with tapering internal thread (31), described thread cap (3) is connected by tapering outside thread (41) and tapering internal thread (31) with thread core (4), vertically be provided with expansion slot (33) on the described thread cap (3), described bassoon (1) is sheathed on the thread cap (3).
2. telescopic pipe connecting structure according to claim 1 is characterized in that: be provided with pre-tightening apparatus between described thread core (4) and the thread cap (3).
3. telescopic pipe connecting structure according to claim 2, it is characterized in that: described pre-tightening apparatus comprises locating stud (2), Compress Spring (7) is located at the through hole (32) at thread cap (3) top, is located at the lockhole (42) at thread core (4) top; Described locating stud (2) top forms cap (21), and locating stud (2) lower end forms lock section (22); Described locating stud (2) lower end is passed through hole (32) and lockhole (42) successively, and is fixedly connected with lockhole (42) by lock section (22), is provided with Compress Spring (7) between described cap (21) and the thread cap (3).
4. telescopic pipe connecting structure according to claim 3, it is characterized in that: described Compress Spring (7) is sheathed on the locating stud (2).
5. telescopic pipe connecting structure according to claim 3 is characterized in that: be provided with back-up ring (6) between described Compress Spring (7) and the thread cap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220240303 CN202646259U (en) | 2012-05-25 | 2012-05-25 | Telescopic pipe connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220240303 CN202646259U (en) | 2012-05-25 | 2012-05-25 | Telescopic pipe connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646259U true CN202646259U (en) | 2013-01-02 |
Family
ID=47415375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220240303 Expired - Fee Related CN202646259U (en) | 2012-05-25 | 2012-05-25 | Telescopic pipe connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111150194A (en) * | 2020-02-18 | 2020-05-15 | 米伦医疗科技(苏州)有限公司 | Telescopic adjusting mechanism of walking stick type walking aid |
-
2012
- 2012-05-25 CN CN 201220240303 patent/CN202646259U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111150194A (en) * | 2020-02-18 | 2020-05-15 | 米伦医疗科技(苏州)有限公司 | Telescopic adjusting mechanism of walking stick type walking aid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202208237U (en) | Retractor | |
| CN104833572B (en) | Bolt tension test tool and the tensile test apparatus using the test tool | |
| CN202991758U (en) | Expansion connector and base hinge connecting structure using the same | |
| CN202646259U (en) | Telescopic pipe connection structure | |
| CN203348275U (en) | Riveting bolt | |
| CN205780140U (en) | The simple novel single-side bolt fastener of a kind of use | |
| CN201884425U (en) | Jam nut | |
| CN203404215U (en) | Loosening-and-separation-preventing bolt | |
| CN202852269U (en) | Pipe connector device with circular arced face as sealing face | |
| CN206175419U (en) | Unilateral bolt fastener | |
| CN201934444U (en) | Pipe connector with locking knob | |
| CN2924238Y (en) | Anti-theft connecting device for pipeline threaded joint | |
| CN204139795U (en) | Car door internally-opened handle denoising device | |
| CN202055652U (en) | Connecting device for upper and lower rods | |
| CN206628647U (en) | A kind of water proof wire structure | |
| CN205421726U (en) | Crimple formula steel bar connection connects | |
| CN205382700U (en) | Embedded nut formula is wall spare even | |
| CN205801314U (en) | Screw type heightens vehicle seat bicycle | |
| CN108979149A (en) | A kind of multipurpose lead screw device | |
| CN205521190U (en) | Dismantle horse of drawing of bearing housing inner bearing | |
| CN203626225U (en) | Structure for connecting scaffold with wall | |
| CN208616194U (en) | From corresponding air passenger chair framework packet mechanism for card | |
| CN201636153U (en) | Screw bolt locking mechanism | |
| CN201106605Y (en) | Clamper bolt for matching trial production part of riding vehicle | |
| CN209394552U (en) | A kind of locking chocking construction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150525 |
|
| EXPY | Termination of patent right or utility model |