CN204387527U - A kind of pipe connecting device - Google Patents
A kind of pipe connecting device Download PDFInfo
- Publication number
- CN204387527U CN204387527U CN201420821057.3U CN201420821057U CN204387527U CN 204387527 U CN204387527 U CN 204387527U CN 201420821057 U CN201420821057 U CN 201420821057U CN 204387527 U CN204387527 U CN 204387527U
- Authority
- CN
- China
- Prior art keywords
- external thread
- pipe
- pipe fitting
- connecting device
- thread part
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 230000004308 accommodation Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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- Joints With Pressure Members (AREA)
Abstract
The utility model discloses a kind of pipe connecting device, for connecting the end of two pipe fittings, comprise the coaxial connecting tube arranged, two lock sleeves, two Sealings and two nuts, this connecting tube comprises the first sticking part for pipe fitting of fitting, with pipe fitting away from accommodating part and by the position of pipe fitting of fitting towards the external thread part extended away from the position of pipe fitting, the outboard end of the first sticking part connects accommodating part and external thread part successively, two Sealing one_to_one corresponding are placed in two accommodating parts, two external thread part one_to_one corresponding are set in outside two lock sleeves, and the outer surface of the internal surface of external thread part and lock sleeve offsets, the outer surface of external thread part is provided with the outside thread be spirally connected with nut, two nut one_to_one corresponding lock onto on the outside thread of two external thread parts.The utility model can realize higher join strength on the basis possessing good sealability.
Description
Technical field
The utility model relates to a kind of pipe connecting device.
Background technique
At present, the device connected two pipe fittings usually adopts the mode of connecting head, and connecting head one end is first fixed in one of them pipe fitting with hooping devices such as iron wires, then by the slotting mode of card, another pipe fitting is inserted joint.The poor sealing performance of this Placement, join strength is not enough, and the insufficient rigidity after two pipe fittings is connected, easily causes getting loose by external force affects.
Model utility content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of pipe connecting device, and the basis possessing good sealability realizes higher join strength.
The purpose of this utility model adopts following technological scheme to realize:
A kind of pipe connecting device, for connecting the end of two pipe fittings, comprise the coaxial connecting tube arranged, two lock sleeves, two Sealings and two nuts, this connecting tube comprises the first sticking part for pipe fitting of fitting, with pipe fitting away from accommodating part and by the position of pipe fitting of fitting towards the external thread part extended away from the position of pipe fitting, the outboard end of the first sticking part connects accommodating part and external thread part successively, the diameter of this external thread part increases from the inside to the outside gradually, two Sealing one_to_one corresponding are placed in two accommodating parts, two external thread part one_to_one corresponding are set in outside two lock sleeves, and the outer surface of the internal surface of external thread part and lock sleeve offsets, the outer surface of external thread part is provided with the outside thread be spirally connected with nut, two nut one_to_one corresponding lock onto on the outside thread of two external thread parts.
Preferably, the middle part of described connecting tube is set to the spacer ring for separating two pipe fittings, and the internal diameter of this spacer ring is less than the internal diameter of described first sticking part.
Preferably, described external thread part has the conical inboard wall that diameter increases from the inside to the outside gradually, and described lock sleeve has the conical outer wall mated with this conical inboard wall, and the diameter of this conical outer wall increases from the inside to the outside gradually.
Preferably, the joining place of described accommodation section and external thread part forms the second sticking part, and form the receiving cavity being used for accommodating Sealing between this second sticking part and first sticking part, this receiving cavity is positioned at inside described accommodation section.
Preferably, described Sealing comprises at least two seal rings, and each seal ring is along the axially-aligned of connecting tube.
Preferably, described nut comprises and stops the baffle ring of lock sleeve and the section of being spirally connected with described outside thread screw-thread fit for the axis along connecting tube.
Preferably, described lock sleeve has fault trough.
Compared to existing technology, the beneficial effects of the utility model are:
The utility model passes through connecting tube, the end of two pipe fittings can be coupled together, ensure join strength, simultaneously because the first sticking part is close to pipe fitting to form the stable connection of two pipe fittings, accommodating part is for loading Sealing, lock sleeve can be supported with nut lock on external thread part simultaneously, lock sleeve is made to produce counteractive axial thrust load and radial component to external thread part, axial thrust load carries out squeeze sealing member by external thread part extruding accommodating part, make the gap between Sealing shutoff pipe fitting and the first sticking part, to form good sealability, external thread part can make lock sleeve extrude pipe fitting to the radial force of lock sleeve, and pass through external thread part, accommodating part drives the first sticking part to compress pipe fitting further, to promote join strength further, also improve rigidity simultaneously, anti-pulling can be realized, compressive resistance.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of pipe connecting device of the utility model;
Fig. 2 is the structural representation of the utility model connecting tube;
Fig. 3 is the structural representation of the utility model lock sleeve.
In figure: 100, pipe fitting; 1, connecting tube; 11, spacer ring; 101, the first sticking part; 102, accommodating part; 103, external thread part; 104, outside thread; 105, conical inboard wall; 106, the second sticking part; 2, lock sleeve; 21, conical outer wall; 22, fault trough; 3, Sealing; 31, seal ring; 4, nut; 41, baffle ring; 42, the section of being spirally connected; 5, receiving cavity.
Embodiment
A kind of pipe connecting device as shown in Figures 1 to 3, for connecting the end of two pipe fittings 100, comprise the coaxial connecting tube 1 arranged, two lock sleeves 2, two Sealing 3 and two nuts 4, this connecting tube 1 comprises the first sticking part 101 for pipe fitting 100 of fitting, with pipe fitting 100 away from accommodating part 102 and by the position of pipe fitting 100 of fitting towards the external thread part 103 extended away from the position of pipe fitting 100, the outboard end of the first sticking part 101 connects accommodating part 102 and external thread part 103 successively, the diameter of this external thread part 103 increases from the inside to the outside gradually, two Sealing 3 one_to_one corresponding are placed in two accommodating parts 102, two external thread part 103 one_to_one corresponding are set in outside two lock sleeves 2, and the outer surface of the internal surface of external thread part 103 and lock sleeve 2 offsets, to keep the interaction force of lock sleeve 2 and external thread part 103, the outer surface of external thread part 103 is provided with the outside thread 104 be spirally connected with nut 4, two nut 4 one_to_one corresponding lock onto on the outside thread 104 of two external thread parts 103.
By connecting tube 1, the end of two pipe fittings 100 can be coupled together, ensure join strength, simultaneously because the first sticking part 101 is close to pipe fitting 100 to form the stable connection of two pipe fittings 100, accommodating part 102 is for loading Sealing 3, be locked on external thread part 103 with nut 4 simultaneously and can support lock sleeve 2, lock sleeve 2 pairs of external thread parts 103 are made to produce counteractive axial thrust load and radial component, axial thrust load extrudes accommodating part 102 by external thread part 103 and carries out squeeze sealing member 3, make the gap between Sealing 3 shutoff pipe fitting 100 and the first sticking part 101, to form good sealability, the radial force of external thread part 103 pairs of lock sleeves 2 can make lock sleeve 2 extrude pipe fitting 100, and by external thread part 103, accommodating part 102 drives the first sticking part 101 to compress pipe fitting 100 further, to promote join strength further, also improve rigidity simultaneously, anti-pulling can be realized, compressive resistance.
During use, connecting tube 1, two lock sleeve 2, two Sealing 3 is set on two pipe fittings 100, is locked on external thread part 103 is connected with the reliable sealing realizing two pipe fittings 100 by nut 4.Particularly, 1. by the extruding of pipe fitting 100 pairs of seal rings 3, being tightly connected of two pipe fittings 100 is played; 2. tightening by nut 4, nut 4 extrudes the outer surface of lock sleeve 2 by external thread part 103, lock sleeve 2 is reduced and holds pipe fitting 100 tightly, reaches fixing two pipe fittings 100.
For ensureing the coaxality after two pipe fittings 100 connection, the middle part of connecting tube 1 is set to the spacer ring 11 for separating two pipe fittings 100, the internal diameter of this spacer ring 11 is less than the internal diameter of the first sticking part 101, the end face 100 of two pipe fittings 100 can be separated by spacer ring 11, and offset with the end face of pipe fitting 100 and realize contraposition, prevent the end contact of pipe fitting 100 and misplace.
As shown in figures 2-3, external thread part 103 has the conical inboard wall 105 that diameter increases from the inside to the outside gradually, and lock sleeve 2 has the conical outer wall 21 mated with this conical inboard wall 105, and the diameter of this conical outer wall 21 increases from the inside to the outside gradually.Therefore, when causing nut 4 to move outward after nut 4 rotates, the coupling mechanism force to lock sleeve 2 can be increased; Or, when two pipe fittings 100 be subject to ordering about two pipe fittings 100 away from pulling force time, lock sleeve 2 can wedging in external thread part 103, to provide tension counter-force, effectively prevent two pipe fittings 100 to be opened.
Accommodating part 102 forms the second sticking part 106 with the joining place of external thread part 103, and this second sticking part 106 can the radial force that provides of rapid response external thread part 103 further, with fast-holding pipe fitting 100.Form the receiving cavity 5 being used for accommodating Sealing 3 between this second sticking part 106 and first sticking part 101, this receiving cavity 5 is positioned at inside accommodating part 102, and two sticking parts define closed to receiving cavity 5, with spacing to Sealing 3.Particularly, be lift-off seal effect, Sealing 3 comprises at least two seal rings 31, and each seal ring 31 is along the axially-aligned of connecting tube 1.
As a preferred implementation of nut 4, nut 4 comprises and stops the baffle ring 41 of lock sleeve 2 and the section of being spirally connected 42 with outside thread 104 screw-thread fit for the axis along connecting tube 1.Baffle ring 41 can stop lock sleeve 2 side slip outward, to keep lock sleeve 2 wedging in external thread part 103, play the position-limiting action to lock sleeve 2, also can order about the axial slip of lock sleeve 2 along connecting tube 1 after rotating nut 4, to extrude accommodating part 102, and then squeeze sealing member 3.
As shown in Figure 3, for convenience of mounting or dismounting, and improve extruding force to pipe fitting 100, lock sleeve 2 has fault trough 22, lock sleeve 2 disconnects by this fault trough 22, forms opening sleeve, possesses coated elastic force to pipe fitting 100 to make lock sleeve 2.
Above-mentioned mode of execution is only preferred implementation of the present utility model; can not limit the scope of the utility model protection with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present utility model all belong to the utility model scope required for protection.
Claims (7)
1. a pipe connecting device, for connecting the end of two pipe fittings, it is characterized in that: comprise the coaxial connecting tube, two lock sleeves, two Sealings and two nuts that arrange, this connecting tube comprise for pipe fitting of fitting the first sticking part, with pipe fitting away from accommodating part and the external thread part that extended away from the position of pipe fitting by the position court of pipe fitting of fit, the outboard end of the first sticking part connects accommodating part and external thread part successively; Two Sealing one_to_one corresponding are placed in two accommodating parts, and two external thread part one_to_one corresponding are set in outside two lock sleeves, and the outer surface of the internal surface of external thread part and lock sleeve offsets, and the outer surface of external thread part is provided with the outside thread be spirally connected with nut; Two nut one_to_one corresponding lock onto on the outside thread of two external thread parts.
2. a kind of pipe connecting device according to claim 1, is characterized in that: the middle part of described connecting tube is set to the spacer ring for separating two pipe fittings, and the internal diameter of this spacer ring is less than the internal diameter of described first sticking part.
3. a kind of pipe connecting device according to claim 1, it is characterized in that: described external thread part has the conical inboard wall that diameter increases from the inside to the outside gradually, described lock sleeve has the conical outer wall mated with this conical inboard wall, and the diameter of this conical outer wall increases from the inside to the outside gradually.
4. a kind of pipe connecting device according to claim 1, it is characterized in that: the joining place of described accommodation section and external thread part forms the second sticking part, form the receiving cavity being used for accommodating Sealing between this second sticking part and first sticking part, this receiving cavity is positioned at inside described accommodation section.
5. a kind of pipe connecting device according to claim 1, it is characterized in that: described Sealing comprises at least two seal rings, each seal ring is along the axially-aligned of connecting tube.
6. a kind of pipe connecting device according to any one of Claims 1 to 5, is characterized in that: described nut comprises and stops the baffle ring of lock sleeve and the section of being spirally connected with described outside thread screw-thread fit for the axis along connecting tube.
7. a kind of pipe connecting device according to any one of Claims 1 to 5, is characterized in that: described lock sleeve has fault trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821057.3U CN204387527U (en) | 2014-12-19 | 2014-12-19 | A kind of pipe connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420821057.3U CN204387527U (en) | 2014-12-19 | 2014-12-19 | A kind of pipe connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387527U true CN204387527U (en) | 2015-06-10 |
Family
ID=53360247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420821057.3U Expired - Fee Related CN204387527U (en) | 2014-12-19 | 2014-12-19 | A kind of pipe connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387527U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322010A (en) * | 2016-10-24 | 2017-01-11 | 深圳建康管道科技有限公司 | Spiral telescopic connection pipe connection piece |
| CN107524412A (en) * | 2017-09-26 | 2017-12-29 | 冷伟 | Build rotary digging equipment |
| CN109578713A (en) * | 2019-01-25 | 2019-04-05 | 广州市科绿士环保设备有限公司 | A kind of double-deck tube seal structure of heat exchange and its installs fixture, installation method |
-
2014
- 2014-12-19 CN CN201420821057.3U patent/CN204387527U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322010A (en) * | 2016-10-24 | 2017-01-11 | 深圳建康管道科技有限公司 | Spiral telescopic connection pipe connection piece |
| WO2018076531A1 (en) * | 2016-10-24 | 2018-05-03 | 深圳建康管道科技有限公司 | Connecting member for spiral telescopic connecting pipe |
| CN107524412A (en) * | 2017-09-26 | 2017-12-29 | 冷伟 | Build rotary digging equipment |
| CN109578713A (en) * | 2019-01-25 | 2019-04-05 | 广州市科绿士环保设备有限公司 | A kind of double-deck tube seal structure of heat exchange and its installs fixture, installation method |
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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: 20150610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |