CN202349429U - Pipe joint and stop valve - Google Patents
Pipe joint and stop valve Download PDFInfo
- Publication number
- CN202349429U CN202349429U CN 201120478798 CN201120478798U CN202349429U CN 202349429 U CN202349429 U CN 202349429U CN 201120478798 CN201120478798 CN 201120478798 CN 201120478798 U CN201120478798 U CN 201120478798U CN 202349429 U CN202349429 U CN 202349429U
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- China
- Prior art keywords
- endoporus
- snap ring
- valve
- pipe joint
- ring
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- 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 - Lifetime
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Abstract
The utility model provides a pipe joint and a stop valve. The pipe joint is provided with a body, wherein the outer wall at one end of the body is provided with external thread for matching with a flat head nut; the body is axially provided with a first inner hole from one end with external thread of the body and is axially provided with a second inner hole for inserting a connecting pipe from the other end of the body; the second inner hole is communicated with the first inner hole; the aperture of the first inner hole is greater than that of the second inner hole; an elastic snap ring, a check ring and at least one seal ring are arranged in the first inner hole from one end close to the second inner hole to the other end in sequence; the elastic snap ring is trumpet-shaped and the shrinkage end of the elastic snap ring is close to the second inner hole; and both the internal diameter of the check ring and the internal diameter of the seal ring are equivalent to that of the shrinkage end of the elastic snap ring. According to the pipe joint, soft sealing of the pipe joint and the connecting pipe is realized, and the technical problems of poor sealing property, large nut pre-tightening force, long aloft work time and high danger in the prior art are solved.
Description
Technical field
The utility model relates to a kind of seal of tube interconnection technique, relates in particular to a kind of pipe joint and stop valve of being connected with the split-type air conditioner indoor set pipe of being used for.
Background technique
Stop valve is a vitals of split-type air conditioner, plays to connect outdoor unit and indoor set, close or open refrigerant circuit and vacuumize or the effect of filled refrigeration agent.
As shown in Figure 1; Stop valve is made up of with valve inside 3 criss-cross valve seat 1 and spool 5 in the valve pocket that is located at valve seat 1 usually; Valve seat 1 has four interfaces that communicate with each other; Be respectively valve seat main thread hole 20, valve cock 2, valve seat bottom outlet 16 and valve base joint 9; Stop valve is closed or is opened and adopts reliability higher spool 5 and valve seat main thread hole 20 seal with screwed joint structures, and adopts snap ring 7 to limit the position that spool 5 upwards moves in valve seat main thread hole 20, improves conformity and Security that spool 5 is opened; Can in valve pocket, fill refrigeration agent through valve cock 2, the filled mouth when valve cock 2 general conducts are keeped in repair; Valve seat bottom outlet 16 welds with the outdoor unit pipe 15 of air-conditioning; Valve base joint 9 is connected with the indoor set pipe 14 of air-conditioning; Valve base joint 9 end faces are the conical surface, and traditional Placement is after horn mouth is expanded in the end of indoor set pipe 14, to combine with the conical surface of valve base joint 9; Use nut 21 that indoor set pipe 14 is fastened on the valve base joint 9, make indoor set pipe 14 and stop valve to be tightly connected firmly.
When air-conditioning is installed for the first time, can provide by air-conditioning factory and expand bell-mouthed indoor set pipe 14, but when the air-conditioning installation and maintenance; The horn mouth of indoor set pipe 14 all is artificial enlargings, when install connecting, all need use bigger moment (usually need by spanner) that nut 21 and valve base joint 9 are tightened; Reaching the effects of fastening valve base joint 9 and the 14 hard sealings of indoor set pipe, but air conditioner is when installing in the high-altitude, and the standing position is little; Be difficult for having an effect; Activity duration is longer, and is long more in the high-lift operation time, and then the risk factor to the operator is big more.
The model utility content
The utility model provides a kind of pipe joint and stop valve; Be used to overcome defective of the prior art; Realize that pipe joint is connected with the easy, quick of connecting tube, reduced requirement of strength simultaneously, reduced the time of operator's high-lift operation and reduced the danger of high-lift operation stop valve.
The utility model provides a kind of pipe joint on the one hand; This pipe joint has a body; The outer wall of this body one end is provided with the outside thread that is used to cooperate flat nut; Said body is provided with an externally threaded end from it and is axially arranged with first endoporus along this body, and said body being axially arranged with from its other end along this body is used to insert second endoporus of connecting tube, said second endoporus be communicated with said first endoporus and the aperture of said first endoporus greater than the aperture of second endoporus; Be provided with snap ring, back-up ring and at least one seal ring from its end successively to the other end in said first endoporus near said second endoporus; Said snap ring be horn-like and its necking end near said second endoporus, the internal diameter of said back-up ring, the internal diameter of seal ring are all consistent with the necking end internal diameter of said snap ring.
Particularly, all be interval with a plurality of U-groove bevels on the perisporium of the necking end of said snap ring and on the perisporium of the flared end of said snap ring.
Further, the U-groove bevel that is located at said snap ring necking end is interlaced with each other with the U-groove bevel that is located at said snap ring flared end.
Wherein, the periphery of said snap ring flared end curls into the periphery that turns up to the outer surface direction of said snap ring.
The utility model provides a kind of stop valve on the other hand; This stop valve has criss-cross valve seat, is provided with valve pocket in the said valve seat, and a said valve seat wherein end is a valve base joint; Said valve base joint is provided with the 3rd endoporus that is communicated with said valve pocket; Said valve base joint is the pipe joint described in above-mentioned arbitrary technological scheme, and second endoporus of said pipe joint is communicated with said the 3rd endoporus, and the aperture of second endoporus is greater than the aperture of said the 3rd endoporus.
The utility model technique effect on the one hand is to have realized that pipe joint is connected with the easy, quick of connecting tube, reduced in the existing technology that sealing cone is firmly wounded and the consequence that causes poor sealing.
The utility model technique effect on the other hand is to have eliminated air-conditioning when mounted to the enlarging work of indoor set tube end; Seal through seal ring between connecting tube and the valve base joint; Be soft seal; And snap ring can need the hard sealing at fastening enlarging of nut and valve base joint position relatively with the axial generation resiliently deformable of being tightened on of flat nut in the existing technology, sealing part is difficult for wounded; Reduced that joint conical surface when stop valve seals firmly in the existing technology is wounded and the consequence that causes poor sealing, reduced the pretightening force of nut simultaneously; The operator directly inserts in the seat of stop valve joint and gets final product buying the indoor set pipe of coming on the market when mounted, need not spanner and carries out fasteningly, has reduced the danger of high-altitude application; Thereby when stop valve and indoor set pipe are installed, reduced torque operation and reduced requirement of strength stop valve.
Description of drawings
Fig. 1 is the erection drawing of the utility model existing technology;
Fig. 2 is the erection drawing that the embodiment of the utility model pipe joint is connected with connecting tube;
Fig. 3 is the plan view of snap ring among the utility model embodiment;
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the erection drawing that the embodiment of the utility model stop valve is connected with connecting tube;
Embodiment
Embodiment one
As shown in Figure 2; The utility model provides a kind of pipe joint; This pipe joint has a body 09; The outer wall of these body 09 1 ends is provided with the outside thread that is used to cooperate flat nut 13; Body 09 is provided with an externally threaded end from it and is axially arranged with first endoporus 01 along body 09, body 09 from its other end along body 09 be axially arranged with that second endoporus, 02, the second endoporus 02 that is used for inserting connecting tube (present embodiment is an indoor set pipe 14) is communicated with first endoporus 01 and the aperture of first endoporus 01 greater than the aperture of second endoporus 02; Be provided with snap ring 10, back-up ring 11 and at least one seal ring 12 from its end successively to the other end in first endoporus 01 near second endoporus 02; Snap ring 10 be horn-like and its necking end near second endoporus 02, the internal diameter of the internal diameter of back-up ring 11, seal ring 12 is all consistent with the necking end internal diameter of snap ring 10.
Horn-like snap ring 10 is beneficial to connecting tube and injects, and is not easy to extract, and makes the connecting tube firm position.Seal ring 12 adopts O type circle, and external diameter pastes with the internal diameter of tip side mutually, and body end is fixing by a square joint nut 13, lets O type circle in body 09, have the three parts to be close to sealing.Radially be the first endoporus inwall and connecting tube outer wall; Be flat nut 13 end faces or back-up ring 11 axially; In the horn mouth that back-up ring 11 is used to stop seal ring 12 under the effect of flat nut 13 pretightening forces, to get into snap ring 10 and the loss of seal performance; Be soft seal between pipe joint and the connecting tube, O type circle internal diameter and connecting tube external diameter are sealed and matched, and the O type circle external diameter and the first endoporus aperture are sealed and matched; Sealing part is difficult for wounded, and the joint conical surface is wounded and caused the consequence of poor sealing when having reduced hard sealing in the existing technology.
As the preferred implementation of the foregoing description,, all be interval with a plurality of U-groove bevels 100 on the perisporium of the necking end 101 of snap ring 10 and on the perisporium of the flared end 102 of snap ring like Fig. 3, shown in 4.U-groove bevel 100 makes snap ring 10 radially have elasticity.For the intensity that increases snap ring 10 and in radially elasticity, the U-groove bevel 100 that is located at snap ring necking end 101 is interlaced with each other with the U-groove bevel 100 that is located at snap ring flared end 102.In order to increase snap ring 10 in axial elasticity, the periphery of snap ring flared end 102 curls into the periphery 103 that turns up to the outer surface direction of snap ring 10.
Embodiment two
As shown in Figure 5, the utility model provides a kind of stop valve, and this stop valve has criss-cross valve seat 1; Be provided with valve pocket in the valve seat 1, valve seat 1 a wherein end is a valve base joint 9, and valve base joint 9 is provided with the 3rd endoporus 03 that is communicated with valve pocket; Valve seat 1 its excess-three end is respectively valve body, valve cock 2 and valve seat bottom outlet 16; Valve body is provided with valve seat main thread hole 20, is provided with spool 5 in the valve seat main thread hole 20, is provided with valve inside 3 in the valve cock 2; Valve seat bottom outlet 16 welds with the outdoor unit pipe 15 of air-conditioning; The sealing configuration that adopts the higher spool 5 of reliability to be threaded with valve seat main thread hole 20 is closed or opened to stop valve, adopts snap ring 7 to limit the position that spool 5 upwards moves in the valve seat main thread hole 20 in valve seat main thread hole 20, to improve conformity and the Security that spool 5 is opened; Be provided with O type circle 6 between spool 5 and the snap ring 7, the valve body end is connected with the block 8 that is used to protect spool and snap ring 7; Can in valve pocket, fill refrigeration agent through valve cock core 3, the filled mouth when valve cock 2 general conducts are keeped in repair, valve cock 2 ends are connected with dust cap 4; Valve base joint 9 is connected with the indoor set pipe 14 of air-conditioning; Valve base joint 9 is the pipe joint in the above-mentioned any embodiment; Second endoporus 02 of pipe joint is communicated with the 3rd endoporus 03, and the aperture of second endoporus 02 greater than the aperture of the 3rd endoporus 03 to be formed for the step 17 of axially locating indoor set pipe 14.
The valve base joint of tradition stop valve and connecting tube adopt the conical surface to be tightly connected firmly, and the circularity after the degree of finish of the butt joint conical surface and the connecting tube enlarging is had relatively high expectations; The Placement of the stop valve of the utility model is soft seal, and O type circle internal diameter and connecting tube external diameter are sealed and matched, and O type circle external diameter seals with the nipple orifice internal diameter mutually; Sealing part is difficult for wounding, during use, as long as connecting tube is penetrated in seal ring, back-up ring, snap ring and second endoporus successively; To be located in flat nut on this connecting tube again is tightened on the outside thread of pipe joint and gets final product; Relative existing technology, one of which has been eliminated air-conditioning when mounted to the enlarging work of indoor set tube end; They are two years old; Connecting tube carries out soft seal through seal ring (processed by elastic material, can axially and radially produce resiliently deformable again) and valve base joint, and snap ring can be with the axial generation resiliently deformable of being tightened on of flat nut; Need the hard sealing at more fastening enlarging of nut and valve base joint position relatively in the existing technology; Sealing part is difficult for wounded, has reduced that joint conical surface when stop valve seals firmly in the existing technology is wounded and the consequence that causes poor sealing, has reduced the moment of tightening nut simultaneously; The operator directly inserts in the seat of stop valve joint and gets final product buying the connecting tube (being the indoor set pipe) of coming on the market when mounted, need not spanner and carries out fasteningly, has reduced the danger of high-altitude application; Its three, reduced requirement of strength thereby when stop valve and indoor set pipe are installed, reduced torque operation to stop valve.
What should explain at last is: above embodiment is only in order to the technological scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these are revised or replacement, do not make the scope of each embodiment's technological scheme of essence disengaging the utility model of relevant art scheme.
Claims (5)
1. pipe joint; This pipe joint has a body; The outer wall of this body one end is provided with the outside thread that is used to cooperate flat nut, it is characterized in that, said body is provided with an externally threaded end from it and is axially arranged with first endoporus along this body; Said body is axially arranged with second endoporus that is used to insert connecting tube from its other end along this body, said second endoporus be communicated with said first endoporus and the aperture of said first endoporus greater than the aperture of second endoporus; Be provided with snap ring, back-up ring and at least one seal ring from its end successively to the other end in said first endoporus near said second endoporus; Said snap ring be horn-like and its necking end near said second endoporus, the internal diameter of said back-up ring, the internal diameter of seal ring are all consistent with the necking end internal diameter of said snap ring.
2. pipe joint according to claim 1 is characterized in that, all is interval with a plurality of U-groove bevels on the perisporium of the necking end of said snap ring and on the perisporium of the flared end of said snap ring.
3. pipe joint according to claim 2 is characterized in that, the U-groove bevel that is located at said snap ring necking end is interlaced with each other with the U-groove bevel that is located at said snap ring flared end.
4. according to claim 1,2 or 3 described pipe joints, it is characterized in that the periphery of said snap ring flared end curls into the periphery that turns up to the outer surface direction of said snap ring.
5. stop valve, this stop valve has criss-cross valve seat, is provided with valve pocket in the said valve seat; A said valve seat wherein end is a valve base joint; Said valve base joint is provided with the 3rd endoporus that is communicated with said valve pocket, it is characterized in that, said valve base joint is arbitrary described pipe joint among the aforesaid right requirement 1-4; Second endoporus of said pipe joint is communicated with said the 3rd endoporus, and the aperture of second endoporus is greater than the aperture of said the 3rd endoporus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120478798 CN202349429U (en) | 2011-11-25 | 2011-11-25 | Pipe joint and stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120478798 CN202349429U (en) | 2011-11-25 | 2011-11-25 | Pipe joint and stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349429U true CN202349429U (en) | 2012-07-25 |
Family
ID=46538436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120478798 Expired - Lifetime CN202349429U (en) | 2011-11-25 | 2011-11-25 | Pipe joint and stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202349429U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574193A (en) * | 2012-08-10 | 2014-02-12 | 浙江三花股份有限公司 | Stop valve for air conditioner |
| CN110332408A (en) * | 2019-07-29 | 2019-10-15 | 格力电器（芜湖）有限公司 | Mounting structure and air conditioner of disk seat and pipe fitting |
| CN111336298A (en) * | 2018-12-19 | 2020-06-26 | 浙江三花智能控制股份有限公司 | Valve device and pipeline connecting structure |
| CN111379910A (en) * | 2020-04-08 | 2020-07-07 | 广东美的制冷设备有限公司 | Working medium pipe quick connector, connecting pipe assembly and automobile air conditioner |
-
2011
- 2011-11-25 CN CN 201120478798 patent/CN202349429U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574193A (en) * | 2012-08-10 | 2014-02-12 | 浙江三花股份有限公司 | Stop valve for air conditioner |
| CN111336298A (en) * | 2018-12-19 | 2020-06-26 | 浙江三花智能控制股份有限公司 | Valve device and pipeline connecting structure |
| CN111336298B (en) * | 2018-12-19 | 2024-01-19 | 浙江三花智能控制股份有限公司 | Valve device and pipeline connection structure |
| CN110332408A (en) * | 2019-07-29 | 2019-10-15 | 格力电器（芜湖）有限公司 | Mounting structure and air conditioner of disk seat and pipe fitting |
| CN110332408B (en) * | 2019-07-29 | 2024-05-14 | 格力电器（芜湖）有限公司 | Mounting structure of valve seat and pipe fitting and air conditioner |
| CN111379910A (en) * | 2020-04-08 | 2020-07-07 | 广东美的制冷设备有限公司 | Working medium pipe quick connector, connecting pipe assembly and automobile air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |