CN214305451U - Anti-reflux anti-freezing outdoor faucet - Google Patents
Anti-reflux anti-freezing outdoor faucet Download PDFInfo
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- CN214305451U CN214305451U CN202120119735.1U CN202120119735U CN214305451U CN 214305451 U CN214305451 U CN 214305451U CN 202120119735 U CN202120119735 U CN 202120119735U CN 214305451 U CN214305451 U CN 214305451U
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- valve rod
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Abstract
The utility model provides an outdoor tap prevents frostbite against current which characterized in that: comprises a body, a valve rod, a valve shell and a piston assembly; the body is provided with an installation cavity, a water inlet channel and a water outlet channel; the valve rod is in threaded connection with the valve housing; a hole I is formed in the valve rod and used for mounting the piston assembly; the valve rod is provided with an air inlet hole which is communicated with the hole I; the valve shell is provided with external threads and is installed on the installation cavity of the body through threaded connection; the utility model discloses a have on the valve rod and open the air inlet hole, when the tap is in the closed condition, air inlet hole clearing hole I, hole II, groove I and the water outlet channel and the outdoor pipe looks UNICOM of body guarantee that this internal and outdoor pipe of tap can not form the negative pressure, abolish the vacuum, as long as outdoor pipe switch opens, the residual water of the inside can discharge smoothly, can not freeze in the outdoor tap cavity of severe cold area and the outdoor pipe cavity, reach the frostproofing effect.
Description
Technical Field
The utility model relates to an outdoor tap especially relates to an prevent outdoor tap that prevents frostbite against current.
Background
Outdoor tap on the existing market mostly all does not take the function of preventing frostbite, and some tap take the function of preventing frostbite but can not prevent against the current, when outdoor tap connects outdoor pipe like this, as long as the intraductal water pressure of outdoor is greater than tap water inlet end pressure or when cutting off the water, the intraductal water of outdoor can flow backwards, influences the water source.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve prior art's problem, provide an outdoor tap who possesses simultaneously and prevent frostbite and prevent function against the current.
The technical scheme of the utility model: the utility model provides an outdoor tap prevents frostbite against current which characterized in that: comprises a body, a valve rod, a valve shell and a piston assembly; the body is provided with an installation cavity, a water inlet channel and a water outlet channel; the valve rod is in threaded connection with the valve housing; a hole I is formed in the valve rod and used for mounting the piston assembly; the valve rod is provided with an air inlet hole which is communicated with the hole I; the valve shell is provided with external threads and is installed on the installation cavity of the body through threaded connection; the piston assembly comprises a spring, a piston rod, a leather cup type rubber gasket and an O-shaped ring I; the piston rod is sleeved with an O-shaped ring I; the leather bowl type rubber gasket is arranged at one end of the piston rod by using a self-tapping screw; the spring is sleeved on the piston rod.
Further, a gasket I is sleeved on the valve shell.
Further, the valve rod is in trapezoidal thread connection with the valve housing.
Further, a handle is arranged at the upper end of the valve rod; the handle is fixed by a screw II; the valve stem is in splined engagement with the handle.
Further, the spring is a compression spring.
Furthermore, a step water inlet hole is arranged in the body; the stepped water inlet hole is matched with the leather cup type rubber gasket.
Furthermore, a hole II is formed in the piston rod, and four grooves I are uniformly distributed on the cylindrical surface of the piston rod; the groove I is communicated with the hole II; the spring is installed in the hole II.
Furthermore, an O-shaped ring II is sleeved on the valve rod.
Further, a groove II is formed in the piston rod and used for mounting the leather cup type rubber gasket.
The utility model has the advantages that: (1) when the outdoor faucet is connected with an outdoor pipe for use, when the outdoor pipe is not detached, and when the water pressure in the outdoor pipe is too high or the outdoor pipe is in a water cut-off state, the force of the spring and the water backflow in the faucet is in the same direction, so that the leather cup type rubber gasket in the piston assembly is tightly attached to the end surface of the stepped hole in the body, water cannot flow back to the body of the outdoor faucet and the water inlet pipe of the outdoor faucet, the water source cannot be polluted by backflow of the water, the larger the water pressure in the outdoor pipe is, the larger the compression amount generated by the end surfaces of the leather cup type rubber gasket and the stepped hole is, and the water cannot flow back no matter how large the water pressure in the outdoor pipe is; (2) the utility model discloses a have on the valve rod and open the air inlet hole, when the tap is in the closed condition, air inlet hole clearing hole I, hole II, groove I and the water outlet channel and the outdoor pipe looks UNICOM of body guarantee that this internal and outdoor pipe of tap can not form the negative pressure, abolish the vacuum, as long as outdoor pipe switch opens, the residual water of the inside can discharge smoothly, can not freeze in the outdoor tap cavity of severe cold area and the outdoor pipe cavity, reach the frostproofing effect.
Drawings
FIG. 1 is an exploded view of the present invention; FIG. 2 is a perspective view of the valve stem of the present invention; FIG. 3 is a perspective view of the piston assembly of the present invention; FIG. 4 is a cross-sectional view of the outdoor faucet of the present invention in a closed state or when the water pressure of the water outlet channel of the faucet body connected to the outdoor tube is greater than the water pressure of the water inlet channel; FIG. 5 is an enlarged view A of a portion of FIG. 4; fig. 6 is the cross-sectional view of the outdoor faucet in the open state and when the water pressure in the water inlet channel is greater than the water pressure in the water outlet channel.
Detailed Description
As shown in the figure: the utility model provides an outdoor tap prevents frostbite against current which characterized in that: comprises a body 1, a valve rod 2, a valve shell 3 and a piston assembly 4; the body 1 is provided with an installation cavity 11, a water inlet channel 12 and a water outlet channel 13; the valve rod 2 is in threaded connection with the valve housing 3; a hole I21 is formed in the valve rod 2 and used for mounting the piston assembly 4; the valve rod 2 is provided with an air inlet 22, and the air inlet 22 is communicated with the hole I21; the valve shell 3 is provided with external threads and is installed on the installation cavity 11 of the body 1 through threaded connection; the piston assembly 4 comprises a spring 41, a piston rod 42, a leather cup type rubber gasket 43 and an O-shaped ring I44; an O-shaped ring I44 is sleeved on the piston rod 41; the leather cup type rubber gasket 43 is mounted at one end of the piston rod 41 by using a self-tapping screw 45; the spring 41 is sleeved on the piston rod 42; a gasket I5 is sleeved on the valve shell 3; the valve rod 2 is in trapezoidal thread connection with the valve shell 3; a handle 6 is arranged at the upper end of the valve rod 2; the handle 6 is fixed by a screw II 7; the valve rod 2 is in spline fit with the handle 6; the spring 41 is a compression spring; a stepped water inlet hole 14 is formed in the body 1; the stepped water inlet hole 14 is matched with the leather cup type rubber gasket 43; a hole II 421 is formed in the piston rod 42, and four grooves I422 are uniformly distributed on the cylindrical surface of the piston rod 42; the groove I422 is communicated with the hole II 421; the spring 41 is arranged in the hole II 421; an O-shaped ring II 8 is sleeved on the valve rod 2; the piston rod 42 is provided with a groove II 423 for mounting the leather cup type rubber gasket 43.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (9)
1. The utility model provides an outdoor tap prevents frostbite against current which characterized in that: comprises a body, a valve rod, a valve shell and a piston assembly; the body is provided with an installation cavity, a water inlet channel and a water outlet channel; the valve rod is in threaded connection with the valve housing; a hole I is formed in the valve rod and used for mounting the piston assembly; the valve rod is provided with an air inlet hole which is communicated with the hole I; the valve shell is provided with external threads and is installed on the installation cavity of the body through threaded connection; the piston assembly comprises a spring, a piston rod, a leather cup type rubber gasket and an O-shaped ring I; the piston rod is sleeved with an O-shaped ring I; the leather bowl type rubber gasket is arranged at one end of the piston rod by using a self-tapping screw; the spring is sleeved on the piston rod.
2. The anti-backflow anti-freezing outdoor faucet as claimed in claim 1, wherein: a gasket I is sleeved on the valve shell.
3. The anti-backflow anti-freezing outdoor faucet as claimed in claim 1, wherein: the valve rod is in trapezoidal thread connection with the valve shell.
4. The anti-backflow anti-freezing outdoor faucet as claimed in claim 1, wherein: a handle is arranged at the upper end of the valve rod; the handle is fixed by a screw II; the valve stem is in splined engagement with the handle.
5. The anti-backflow anti-freezing outdoor faucet as claimed in claim 1, wherein: the spring is a compression spring.
6. The anti-backflow anti-freezing outdoor faucet as claimed in claim 1, wherein: a step water inlet hole is arranged in the body; the stepped water inlet hole is matched with the leather cup type rubber gasket.
7. The anti-backflow anti-freezing outdoor faucet as claimed in claim 1, wherein: a hole II is formed in the piston rod, and four grooves I are uniformly distributed on the cylindrical surface of the piston rod; the groove I is communicated with the hole II; the spring is installed in the hole II.
8. The anti-backflow anti-freezing outdoor faucet as claimed in claim 1, wherein: and the valve rod is sleeved with an O-shaped ring II.
9. The anti-backflow anti-freezing outdoor faucet as claimed in claim 1, wherein: and the piston rod is provided with a groove II for mounting the leather cup type rubber gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120119735.1U CN214305451U (en) | 2021-01-15 | 2021-01-15 | Anti-reflux anti-freezing outdoor faucet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120119735.1U CN214305451U (en) | 2021-01-15 | 2021-01-15 | Anti-reflux anti-freezing outdoor faucet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214305451U true CN214305451U (en) | 2021-09-28 |
Family
ID=77825364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120119735.1U Active CN214305451U (en) | 2021-01-15 | 2021-01-15 | Anti-reflux anti-freezing outdoor faucet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214305451U (en) |
-
2021
- 2021-01-15 CN CN202120119735.1U patent/CN214305451U/en active Active
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