CN214171414U - Single-plug rotary opening type check valve structure - Google Patents
Single-plug rotary opening type check valve structure Download PDFInfo
- Publication number
- CN214171414U CN214171414U CN202023084313.XU CN202023084313U CN214171414U CN 214171414 U CN214171414 U CN 214171414U CN 202023084313 U CN202023084313 U CN 202023084313U CN 214171414 U CN214171414 U CN 214171414U
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- Prior art keywords
- valve
- end cap
- valve body
- hinge
- sealing
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- 238000007789 sealing Methods 0.000 claims abstract description 49
- 238000009434 installation Methods 0.000 claims abstract description 7
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 230000013011 mating Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The application discloses rotatory formula check valve structure that opens of single end cap, including valve body, valve plate and valve rod, the valve plate passes through the valve rod and rotates sealed the installation on the valve body, still includes end cap and end cap sealing washer, the counter bore has been seted up on the valve body, the valve rod is installed in the counter bore, the end cap is fixed outside the valve body, the end cap is used for the drill way of shutoff counter bore, the sealed snare of end cap sets up between valve body and the end cap, the end cap sealing washer is used for the clearance between sealed end cap and the valve body. The utility model discloses following beneficial effect has: the valve rod is installed through the counter bore, so only one sealing point is provided, the leakage probability is greatly reduced, the sealing ring is adopted for sealing, the sealing ring is more aging-resistant than sealing glue, the service life is long, and the sealing effect is more stable.
Description
Technical Field
The utility model relates to a valve structure field especially relates to a rotatory formula check valve structure that opens of single end cap.
Background
Check valves are widely used in air conditioning systems and require strict control of the amount of freon leakage. The valve both sides valve stem hole position of present check valve seals up the screw thread end cap with NPT and seals up with sealed glue, adopts the NPT screw thread, even use the spanner to tighten the back, probably leaks gas after the assembly, and adopts sealed glue to fill all clearances, sealed glue has ageing and oxidation failure risk, so present check valve leakproofness is relatively poor, leaks gas easily in the use.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above-mentioned problem, a rotatory formula check valve structure that opens of single end cap is proposed.
The utility model adopts the following technical scheme:
the utility model provides a rotatory formula check valve structure that opens of single end cap, includes valve body, valve plate and valve rod, the valve plate passes through the valve rod and rotates sealed the installation on the valve body, still includes end cap and end cap sealing washer, the counter bore has been seted up on the valve body, the valve rod is installed in the counter bore, the end cap is fixed outside the valve body, the end cap is used for the drill way of shutoff counter bore, the sealed snare of end cap sets up between valve body and the end cap, the end cap sealing washer is used for the clearance between sealed end cap and the valve body.
In the structure, the valve rod is installed through the counter bore, so that only one sealing point (namely only one plug) is arranged, the leakage probability is greatly reduced, the sealing ring is adopted for sealing, the sealing ring is more aging-resistant than sealing glue, the service life is long, and the sealing effect is more stable. And in the structure, the NPT thread is replaced by the fine thread, and the fine thread has better sealing effect and is less prone to leakage.
Optionally, the valve further comprises a hinge and a spacer bush, the valve plate is mounted on the valve rod through the hinge, the spacer bush is sleeved on the valve rod, and two sides of the spacer bush are tightly attached to the valve body and the hinge respectively.
Optionally, the valve further comprises a spring, two matching ends are arranged between the hinge and the valve rod, the spring is sleeved on the valve rod, and the hinge abuts against the two matching ends of the hinge.
Optionally, the valve plate and the hinge are fixed together through a valve plate nut.
Optionally, a valve seat is arranged in the valve body, a valve seat sealing ring is arranged on the valve seat, and the valve seat sealing ring is located between the valve seat and the valve plate.
Optionally, the valve further comprises a lifting ring, and the lifting ring is mounted on the valve body through a fastening nut.
Optionally, a mounting groove is formed between the plug and the valve body, and the plug sealing ring is located in the mounting groove.
The mounting groove has the function of mounting the plug sealing ring on one hand, and has the function of controlling the deformation of the plug sealing ring (namely controlling the compression ratio of the plug sealing ring) on the other hand.
Optionally, the hanging ring is a circular hanging ring.
The utility model has the advantages that: the valve rod is installed through the counter bore, so only one sealing point is provided, the leakage probability is greatly reduced, the sealing ring is adopted for sealing, the sealing ring is more aging-resistant than sealing glue, the service life is long, and the sealing effect is more stable.
Description of the drawings:
FIG. 1 is a schematic diagram of a single-plug rotary check valve;
fig. 2 is a schematic view of the fitting relationship between the plug and the valve stem.
The figures are numbered: 1. the valve comprises a valve body, 2, a hinge, 3, a valve seat sealing ring, 4, a valve seat, 5, a spring, 6, a spacer bush, 7, a valve rod, 8, a plug, 9, a fastening nut, 10, a hanging ring, 11, a valve plate, 12, a valve plate nut, 13 and a plug sealing ring.
The specific implementation mode is as follows:
the present invention will be described in detail with reference to the accompanying drawings.
As shown in attached figure 1 and attached figure 2, a single-plug 8 rotary opening type check valve structure comprises a valve body 1, a valve plate 11 and a valve rod 7, wherein the valve plate 11 is installed on the valve body 1 through the valve rod 7 in a rotating and sealing mode, the check valve structure further comprises a plug 8 and a plug sealing ring 13, a counter bore is formed in the valve body 1, the valve rod 7 is installed in the counter bore, the plug 8 is fixed outside the valve body 1, the plug 8 is used for plugging a hole opening of the counter bore, the plug sealing ring 13 is sleeved between the valve body 1 and the plug 8, and the plug sealing ring 13 is used for sealing a gap between the plug 8 and the valve body 1.
In the structure, the valve rod 7 is installed through the counter bore, so that only one sealing point (namely only one plug 8) is arranged, the leakage probability is greatly reduced, the sealing ring is adopted for sealing, the sealing ring is more aging-resistant than sealing glue, the service life is long, and the sealing effect is more stable. And in the structure, the NPT thread is replaced by the fine thread, and the fine thread has better sealing effect and is less prone to leakage.
As shown in attached figures 1 and 2, the valve plate comprises a hinge 2 and a spacer bush 6, wherein the valve plate 11 is installed on the valve rod 7 through the hinge 2, the spacer bush 6 is sleeved on the valve rod 7, and two sides of the spacer bush 6 are respectively attached to the valve body 1 and the hinge 2.
As shown in fig. 1 and 2, the valve further comprises a spring 5, two mating ends are arranged between the hinge 2 and the valve rod 7, the spring 5 is sleeved on the valve rod 7, and the hinge 2 abuts against the two mating ends of the hinge 2.
As shown in fig. 1 and 2, valve plate 11 and hinge 2 are fixed together by valve plate nut 12.
As shown in fig. 1 and fig. 2, a valve seat 4 is arranged in the valve body 1, a valve seat sealing ring 3 is arranged on the valve seat 4, and the valve seat sealing ring 3 is located between the valve seat 4 and the valve plate 11.
As shown in fig. 1 and 2, the valve further comprises a lifting ring 10, and the lifting ring 10 is mounted on the valve body 1 through a fastening nut 9.
As shown in fig. 1 and 2, an installation groove is formed between the plug 8 and the valve body 1, and the plug sealing ring 13 is located in the installation groove.
The mounting groove has a function of mounting the plug seal ring 13, and a function of controlling the deformation of the plug seal ring 13 (i.e., controlling the compression ratio of the plug seal ring 13).
As shown in fig. 1 and 2, the suspension ring 10 is a circular suspension ring 10.
The aforesaid only is the preferred embodiment of the utility model discloses a not consequently restrict promptly the utility model discloses a patent protection scope, all applications the utility model discloses the equivalent transform that the specification was done, direct or indirect application is in other relevant technical field, all including on the same reason the utility model discloses a protection scope.
Claims (8)
1. The utility model provides a rotatory formula check valve structure that opens of single end cap, includes valve body, valve plate and valve rod, the valve plate passes through the valve rod and rotates sealed the installation on the valve body, its characterized in that still includes end cap and end cap sealing washer, the counter bore has been seted up on the valve body, the valve rod is installed in the counter bore, the end cap is fixed outside the valve body, the end cap is used for the drill way of shutoff counter bore, the sealed snare of end cap sets up between valve body and the end cap, the end cap sealing washer is used for the clearance between sealed end cap and the valve body.
2. The structure of claim 1, further comprising a hinge and a spacer, wherein the valve plate is mounted on the valve stem via the hinge, the spacer is sleeved on the valve stem, and two sides of the spacer are respectively attached to the valve body and the hinge.
3. The structure of claim 2, further comprising a spring, wherein the hinge and the stem have two mating ends, the spring is disposed around the stem, and the hinge abuts against the two mating ends of the hinge.
4. The structure of a single plug swing check valve as claimed in claim 2, wherein the valve plate and the hinge are secured together by a valve plate nut.
5. The structure of claim 1, wherein a valve seat is disposed in the valve body, and a valve seat seal is disposed on the valve seat and between the valve seat and the valve plate.
6. The structure of a single plug swing check valve according to claim 1, further comprising a lifting ring mounted on the valve body by a fastening nut.
7. The structure of claim 1, wherein an installation groove is formed between the plug and the valve body, and the plug sealing ring is located in the installation groove.
8. The structure of the single plug swing check valve according to claim 6, wherein the ring is a circular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023084313.XU CN214171414U (en) | 2020-12-18 | 2020-12-18 | Single-plug rotary opening type check valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023084313.XU CN214171414U (en) | 2020-12-18 | 2020-12-18 | Single-plug rotary opening type check valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214171414U true CN214171414U (en) | 2021-09-10 |
Family
ID=77607372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023084313.XU Active CN214171414U (en) | 2020-12-18 | 2020-12-18 | Single-plug rotary opening type check valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214171414U (en) |
-
2020
- 2020-12-18 CN CN202023084313.XU patent/CN214171414U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |