CN203979554U - A kind of fast liquid-filling valve - Google Patents
A kind of fast liquid-filling valve Download PDFInfo
- Publication number
- CN203979554U CN203979554U CN201420400619.7U CN201420400619U CN203979554U CN 203979554 U CN203979554 U CN 203979554U CN 201420400619 U CN201420400619 U CN 201420400619U CN 203979554 U CN203979554 U CN 203979554U
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- CN
- China
- Prior art keywords
- push rod
- valve body
- spool
- fixed base
- seal 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 - Fee Related
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Abstract
The utility model provides a kind of fast liquid-filling valve, belongs to field of mechanical technique.It is bad that it has solved existing fast liquid-filling valve sealing effect, the problem that working life is not high.This fast liquid-filling valve comprises valve body, spool is housed in valve body, spool comprises the head and the push rod that stretch into body cavity, push rod end is fixed with fixed base, spool head is arranged with respectively and body cavity and the spool head seal ring that fits, and push rod outside is arranged with the stuffing box gland of being close to push rod inwall between seal ring and fixed base, and push rod outside is arranged with spring, spring one end leans on the step arranging on body cavity, and the other end leans on the step arranging on fixed base.This fast liquid-filling valve is by arranging stuffing box gland and seal ring in push rod outside and head, promoted the sealing between spool and valve body, meanwhile, seal ring is arranged to the inclined-plane fitting with cavity inner wall, increase sealing area, further improved the sealing of spool.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of check valve, particularly a kind of Rapid Freon-feeding testing valve for air conditioner.
Background technique
In existing separate type air conditioner indoor set pipe-line system, the method of filling refrigeration agent is: on the street corner of indoor set input connecting tube, connect copper connecting tube nut and be with bell-mouthed copper pipe, fill refrigeration agent with liquid feeding rifle again, after filling, copper pipe is pressed from both sides to flat being welded, with the medium in sealing pipeline system.But this liquid feeding method is strict to the fastening requirement with bell-mouthed copper pipe and union nut, once fastening not tight, will cause the phenomenon of leakage.And adopt welding procedure more complicated, use acetylene, oxygen etc. to have potential safety hazard in welding process, the waste gas environmental pollution of generation is also larger.
For the problems referred to above, the applicant has carried out certain improvement and has applied for Chinese patent (notice of authorization CN201339741Y), the disclosed Rapid Freon-feeding testing valve for air conditioner of this patent, comprise valve body, in described valve body, spool is housed, spool comprises the head and the push rod that coordinate with described body cavity, spool head coordinates with the first conical surface seal of body cavity, push rod runs through a spring, the afterbody of push rod is fixedly connected with a fixed base, and second conical surface that body cavity coordinates with indoor set copper sleeve is provided with triangle rubber ring.This patent, by spring controlled valve core automatic-sealed is set, reaches the object of fast and easy liquid feeding.But, in order to ensure sealing, the precompression of spring is larger, seal ring is pressed between first conical surface of head and body cavity for a long time, cause the working life of seal ring shorter, in the course of time seal ring is easily out of shape, thereby affects the sealability of valve body, equally easily causes the phenomenon of leakage.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of long service life, the fast liquid-filling valve of good seal performance.
The purpose of this utility model can realize by following technical proposal: a kind of fast liquid-filling valve, comprise valve body, in described valve body, spool is housed, described spool comprises the head and the push rod that stretch into body cavity, it is characterized in that, described push rod end is fixed with fixed base, described spool head is arranged with respectively and body cavity and the spool head seal ring that fits, described push rod outside is arranged with the stuffing box gland of being close to push rod inwall between seal ring and fixed base, described push rod outside is arranged with spring, described spring one end leans on the step arranging on body cavity, the other end leans on the step arranging on fixed base.
In above-mentioned fast liquid-filling valve, described body cavity has annular slope, and described seal ring is provided with the sealing inclined-plane fitting with annular slope near body cavity one side.
In above-mentioned fast liquid-filling valve, described fixed base is cross, is provided with the gap for liquid feeding between described fixed base and body cavity, is also provided with the gap for liquid feeding between described stuffing box gland and body cavity.
In above-mentioned fast liquid-filling valve, described valve body outside is also provided with the stiffening rib being circumferentially evenly arranged.
In above-mentioned fast liquid-filling valve, described body cavity is also provided with the external step for leaning with copper sleeve, and described external step place is provided with inverted trapezoidal seal ring.
In above-mentioned fast liquid-filling valve, described push rod end and fixed base end are provided with joint.Interference fit between fixed base and push rod merges by electric heating simultaneously, makes to be connected between fixed base and push rod, in addition, utilizes joint to be directly welded on fixed base and push rod end, push rod is connected more firm with fixed base.
In above-mentioned fast liquid-filling valve, described seal ring adopts rubber material to make.
Compared with prior art, this fast liquid-filling valve, by push rod outside and head, stuffing box gland and seal ring being set, has promoted the sealing between spool and valve body, simultaneously, seal ring is arranged to the inclined-plane fitting with cavity inner wall, has increased sealing area, has further improved the sealing of spool.
Brief description of the drawings
Fig. 1 is the sectional structure schematic diagram of this fast liquid-filling valve;
Fig. 2 is the plan structure schematic diagram of this fast liquid-filling valve.
In figure, 1, valve body; 11, stiffening rib; 2, spool; 21, head; 22, push rod; 3, fixed base; 4, seal ring; 5, stuffing box gland; 6, spring; 7, inverted trapezoidal seal ring; 8, joint.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, this fast liquid-filling valve, comprise valve body 1, in described valve body 1, spool 2 is housed, described spool 2 comprises the head 21 and the push rod 22 that stretch into valve body 1 inner chamber, described push rod 22 ends are fixed with fixed base 3, described spool 2 heads 21 are arranged with respectively and valve body 1 inner chamber and spool 2 heads 21 seal ring 4 that fits, described push rod 22 outsides are arranged with the stuffing box gland 5 of being close to push rod 22 inwalls between seal ring 4 and fixed base 3, described push rod 22 outsides are arranged with spring 6, described spring 6 one end lean on the step arranging on valve body 1 inner chamber, the other end leans on the step arranging on fixed base 3.Described valve body 1 inner chamber has annular slope, and described seal ring 4 is provided with near valve body 1 inner chamber one side the sealing inclined-plane fitting with annular slope.Described fixed base is cross, between described fixed base and valve body 1 inner chamber, is provided with the gap for liquid feeding, between described stuffing box gland 5 and valve body 1 inner chamber, is also provided with the gap for liquid feeding.For strengthening the structural strength of valve body 1, described valve body 1 outside is also provided with the stiffening rib 11 being circumferentially evenly arranged.
Described valve body 1 inner chamber is also provided with the external step for leaning with copper sleeve, and described external step place is provided with inverted trapezoidal seal ring 7.Described push rod 22 ends and fixed base end are provided with joint 8.Interference fit between fixed base and push rod 22 merges by electric heating simultaneously, makes to be connected between fixed base 3 and push rod 22, in addition, utilizes joint 8 to be directly welded on fixed base and push rod 22 ends, push rod 22 is connected more firm with fixed base 3.
The assembly process of this fast liquid-filling valve is as follows, first seal ring 4 is sheathed with to seal ring 4 bottoms from push rod 22 upper ends and head 21 is fitted, then stuffing box gland 5 is sheathed on to push rod 22 outsides, then spool 2 is put into valve body 1, spring 6 is socketed in push rod 22 outsides by the other end at valve body 1, the push rod 22 sheathed fixed bases 3 in end also make it to be fixedly connected with by the mode of hot melt, and be fixed with joint 8 in the outer end of push rod 22 and fixed base 3 by the mode of hot melt, the two ends of spring 6 lean respectively on the step of step in valve body 1 and fixed base 3, finally inverted trapezoidal seal ring 7 is installed in valve body 1.
This fast liquid-filling valve is installed on air-conditioning, when needs are during to indoor set liquid feeding, rapid pipe joint access valve body 1 afterbody, head 21 tops of rapid pipe joint press solidly reservation 3, make spring 6 compressed, fixed base 3 is with movable valve plug 2 inwardly to move, and spool 2 heads 21 depart from the sealing surface of valve body 1 inner chamber, and now the refrigeration agent in rapid pipe joint can enter in liquid feeding copper sleeve by the gap in valve body 1.After liquid feeding completes, unclamp rapid pipe joint, fixed base 3 loses top pressure pressure, under the effect of spring 6, spool 2 automatic retractions, the seal ring 4 of head 21 is combined with the sealing surface of valve body 1 inner chamber, completes self-return and the sealing of spool 2 and valve body 1.
In addition, this fast liquid-filling valve can be used for thinking adding in air conditioner cold air equally, simultaneously, this fast liquid-filling valve also can be used for detecting air-conditioner host and whether leaks liquid/gas, and its method is gently to press solidly reservation 3, prove that in air-conditioning, coolant pressure is normal if there is gas to ooze out, indoor set is without the phenomenon of leakage, if ooze out and prove that in air-conditioning, coolant pressure is identical with atmospheric pressure without gas, explanation exists the phenomenon of leakage.Utilize this fast liquid-filling valve can carry out fast detecting, reduced the maintenance rate during machine uses.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (7)
1. a fast liquid-filling valve, comprise valve body (1), in described valve body (1), spool (2) is housed, described spool (2) comprises the head (21) and the push rod (22) that stretch into valve body (1) inner chamber, it is characterized in that, described push rod (22) end is fixed with fixed base (3), the head (21) of described spool (2) is arranged with respectively and valve body (1) inner chamber and spool (2) head (21) seal ring (4) that fits, described push rod (22) outside is positioned at and between seal ring (4) and fixed base (3), is arranged with the stuffing box gland (5) of being close to push rod (22) inwall, described push rod (22) outside is arranged with spring (6), described spring (6) one end leans on the step arranging on valve body (1) inner chamber, the other end leans on the upper step arranging of fixed base (3).
2. fast liquid-filling valve according to claim 1, it is characterized in that, described valve body (1) inner chamber has annular slope, and described seal ring (4) is provided with near valve body (1) inner chamber one side the sealing inclined-plane fitting with annular slope.
3. fast liquid-filling valve according to claim 2, it is characterized in that, described fixed base (3) is cross, between described fixed base (3) and valve body (1) inner chamber, be provided with the gap for liquid feeding, between described stuffing box gland (5) and valve body (1) inner chamber, be also provided with the gap for liquid feeding.
4. according to the fast liquid-filling valve described in claim 1 or 2 or 3, it is characterized in that, described valve body (1) outside is also provided with the stiffening rib (11) being circumferentially evenly arranged.
5. according to the fast liquid-filling valve described in claim 1 or 2 or 3, it is characterized in that, described valve body (1) inner chamber is also provided with the external step for leaning with copper sleeve, and described external step place is provided with inverted trapezoidal seal ring (7).
6. according to the fast liquid-filling valve described in claim 1 or 2 or 3, it is characterized in that, described push rod (22) end and fixed base (3) end are provided with joint (8).
7. according to the fast liquid-filling valve described in claim 1 or 2 or 3, it is characterized in that, described seal ring (4) adopts rubber material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400619.7U CN203979554U (en) | 2014-07-15 | 2014-07-15 | A kind of fast liquid-filling valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400619.7U CN203979554U (en) | 2014-07-15 | 2014-07-15 | A kind of fast liquid-filling valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979554U true CN203979554U (en) | 2014-12-03 |
Family
ID=51976999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420400619.7U Expired - Fee Related CN203979554U (en) | 2014-07-15 | 2014-07-15 | A kind of fast liquid-filling valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979554U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167447A (en) * | 2017-12-25 | 2018-06-15 | 广东美的制冷设备有限公司 | Detect valve, nitrogen charging detection components and air-conditioning equipment |
| CN109505991A (en) * | 2019-01-11 | 2019-03-22 | 北京机械设备研究所 | It is a kind of can active control the general charging valve adapter of refrigerant |
-
2014
- 2014-07-15 CN CN201420400619.7U patent/CN203979554U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167447A (en) * | 2017-12-25 | 2018-06-15 | 广东美的制冷设备有限公司 | Detect valve, nitrogen charging detection components and air-conditioning equipment |
| CN109505991A (en) * | 2019-01-11 | 2019-03-22 | 北京机械设备研究所 | It is a kind of can active control the general charging valve adapter of refrigerant |
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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: 20141203 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |