CN212156181U - Backflow preventer of three-way connecting pipe - Google Patents
Backflow preventer of three-way connecting pipe Download PDFInfo
- Publication number
- CN212156181U CN212156181U CN202020719737.XU CN202020719737U CN212156181U CN 212156181 U CN212156181 U CN 212156181U CN 202020719737 U CN202020719737 U CN 202020719737U CN 212156181 U CN212156181 U CN 212156181U
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- CN
- China
- Prior art keywords
- separation blade
- backflow preventer
- fixedly connected
- connection pipe
- pipe according
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Abstract
The utility model discloses a tee junction pipe backflow preventer, including the tee junction body, two installation pieces of two inside fixedly connected with of tee junction body, two the circular recess has all been seted up to the relative one side of installation piece, two it is connected with the bull stick to rotate between the circular recess, the fixed surface of bull stick is connected with the connecting rod. This tee bend connecting pipe backflow preventer, through setting up the separation blade, the liquid that sets up in the three-way pipe body from left to right is the refluence direction, when liquid refluence, the separation blade blocks rivers, and the inside current-limiting chamber that forms of cooperation current-limiting ring is less than the separation blade, so the separation blade blocks rivers completely, and along with fluidic impact, go into the rubber lug card on the separation blade in the draw-in groove, along with rubber lug's elasticity, in inside chucking, it is spacing to the separation blade formation, the separation blade can not rock along with the impact formation of rivers this moment, the sealed sealing of contact deuterogamy, make prevent the refluence effect better, make liquid.
Description
Technical Field
The utility model belongs to the technical field of the tee bend connecting pipe, concretely relates to tee bend connecting pipe backflow preventer.
Background
The tee is also called as a pipe tee or a tee pipe, a tee joint and the like. The tee joint pipe that mainly used changed fluid direction is used in the trunk line and is waited bleeder department, can classify according to the pipe diameter size, generally uses carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastics, and argon press against the waterlogging caused by excessive rainfall, and the material preparation such as PVC, circuit use has three port, and the straight tube can be connected respectively to three port, and the tee joint pipe of general adoption is T type structure, and tee joint pipe has the effect of shunting the circuit.
When the three-way connecting pipe changes the flow direction of liquid, the situation of liquid backflow sometimes occurs, inconvenience is brought to use, the existing three-way connecting pipe is not provided with a backflow prevention mechanism, or some backflow preventers are not good in backflow prevention effect, liquid leakage is easily caused along with continuous impact of liquid backflow, the backflow prevention phenomenon is not substantially solved, and therefore the backflow preventer for the three-way connecting pipe is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tee junction pipe backflow preventer to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tee junction pipe backflow preventer, includes the tee junction body, two installation pieces of two inside fixedly connected with of tee junction body, two the circular recess has all been seted up to the relative one side of installation piece, two it is connected with the bull stick to rotate between the circular recess, the outer fixed surface of bull stick is connected with the connecting rod, the one end fixedly connected with separation blade of connecting rod, the right side fixedly connected with rubber bump of separation blade, the inside fixedly connected with current-limiting ring of tee junction body, the draw-in groove has been seted up to one side of current-limiting ring, the left side fixedly connected with of current-limiting ring is sealed to be filled up.
Preferably, the cross-sectional size of the rotating rod is matched with the inner size of the two circular grooves.
Preferably, the baffle is of a circular structure, and a flow limiting cavity formed in the flow limiting ring is smaller than the baffle in size.
Preferably, the inside of the restrictor ring is provided with a pressure discharge hole, and the pressure discharge hole is communicated with the clamping groove.
Preferably, the sealing gasket is of an annular hollow structure, and the sealing gasket is larger than a flow limiting cavity formed in the flow limiting ring.
Preferably, the rubber bump is matched with the size of the clamping groove.
Preferably, the top of the right side of the baffle is concave.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) this tee bend connecting pipe backflow preventer, through setting up the separation blade, the liquid that sets up in the three-way pipe body from left to right is the refluence direction, when liquid refluence, the separation blade blocks rivers, and the inside current-limiting chamber that forms of cooperation current-limiting ring is less than the separation blade, so the separation blade blocks rivers completely, and along with fluidic impact, go into the rubber lug card on the separation blade in the draw-in groove, along with rubber lug's elasticity, in inside chucking, it is spacing to the separation blade formation, the separation blade can not rock along with the impact formation of rivers this moment, the sealed sealing of contact deuterogamy, make prevent the refluence effect better, make liquid.
(2) This tee bend connecting pipe backflow preventer, through setting up the row pressure hole, when liquid normally flows from the right side to the left, set up and arrange the negative pressure that forms in the pressure hole to the draw-in groove, and along with the impact that liquid flows, more easily with rubber lug rush out in the draw-in groove, liquid flow strikes the separation blade at this moment under the connecting rod linking effect, along with the bull stick rotates the leaner left side in the circular recess, keep away from the restrictor ring and sealed the pad, form forward liquid flow, consequently can realize through the device that normal liquid flow can effectually restrain liquid backflow again simultaneously, the practicality of anti-backflow device has further been improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of the structure of fig. 1 at a;
FIG. 3 is a schematic side view of the gasket of the present invention;
FIG. 4 is a schematic side view of the baffle plate of the present invention;
fig. 5 is an enlarged view of the structure at B in fig. 4 according to the present invention.
In the figure: 1. a three-way pipe body; 2. mounting blocks; 3. a circular groove; 4. a rotating rod; 5. a connecting rod; 6. a baffle plate; 7. a rubber bump; 8. a flow-limiting ring; 9. a card slot; 10. a gasket; 11. and (6) pressure discharge holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution of a backflow preventer with three-way connecting pipe: including tee bend body 1, two installation pieces 2 of the inside fixedly connected with of tee bend body 1, circular slot 3 has all been seted up to two relative one sides of installation piece 2, it is connected with bull stick 4 to rotate between two circular slots 3, the outer fixed surface of bull stick 4 is connected with connecting rod 5, the one end fixedly connected with separation blade 6 of connecting rod 5, the right side fixedly connected with rubber bump 7 of separation blade 6, the inside fixedly connected with restrictor ring 8 of tee bend body 1, draw-in groove 9 has been seted up to one side of restrictor ring 8, the sealed pad 10 of left side fixedly connected with of restrictor ring 8.
In this embodiment, the cross-sectional size of the rotating rod 4 is preferably matched with the internal size of the two circular grooves 3, so as to improve the stability of the rotating rod 4 during rotation.
In this embodiment, preferably, the baffle 6 is a circular structure, and the flow-limiting cavity formed inside the flow-limiting ring 8 is smaller than the baffle 6, so that the backflow-preventing effect of the baffle 6 is better.
In this embodiment, preferably, the pressure discharge hole 11 is formed in the flow-limiting ring 8, the pressure discharge hole 11 is communicated with the clamping groove 9, and the pressure discharge hole 11 is arranged to discharge pressure, so that the rubber bump 7 is more easily separated from the clamping groove 9.
In this embodiment, preferably, the sealing gasket 10 is an annular hollow structure, and the sealing gasket 10 is larger than the flow-limiting cavity formed inside the flow-limiting ring 8, so as to further improve the sealing effect.
In this embodiment, preferably, the rubber bumps 7 are matched with the slots 9 in size, so that the rubber bumps 7 can conveniently enter and exit the slots 9.
In this embodiment, preferably, the top of the right side of the blocking sheet 6 is concave, so that the blocking sheet 6 is convenient to be staggered with the sealing gasket 10 when being inclined to the left.
The utility model discloses a theory of operation and use flow: the backflow preventer of the three-way connecting pipe is characterized in that a separation blade 6 is arranged, liquid arranged in a three-way pipe body 1 is in a backflow direction from left to right, when the liquid flows backwards, the separation blade 6 blocks water flow, a flow limiting cavity formed inside a flow limiting ring 8 is matched to be smaller than the separation blade 6, the separation blade 6 blocks the water flow completely, the rubber bump 7 on the separation blade 6 is clamped into a clamping groove 9 along with the impact of the fluid, the separation blade 6 is clamped inside along with the elasticity of the rubber bump 7 to form a limit, the separation blade 6 cannot shake along with the impact of the water flow at the moment, the sealing of a contact sealing gasket 10 is matched to ensure that the backflow preventing effect is better, the liquid cannot easily leak, through the pressure discharge hole 11, when the liquid normally flows from the right to the left, the pressure discharge hole 11 is arranged to form negative pressure in the clamping groove 9, and along with the impact of the liquid flow, at this moment, the liquid flow impact blocking sheet 6 inclines leftwards along with the rotation of the rotating rod 4 in the circular groove 3 under the connection effect of the connecting rod 5, the flow limiting ring 8 and the sealing gasket 10 are kept away, and positive liquid flow is formed, so that normal liquid flow can be realized through the device, liquid backflow can be effectively inhibited at the same time, and the practicability of the backflow preventing device is further improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a tee junction pipe backflow preventer, includes tee junction body (1), its characterized in that: two installation pieces of inside fixedly connected with (2), two of tee bend body (1) circular recess (3) have all been seted up, two to installation piece (2) relative one side rotate between circular recess (3) and be connected with bull stick (4), the outer fixed surface of bull stick (4) is connected with connecting rod (5), the one end fixedly connected with separation blade (6) of connecting rod (5), the right side fixedly connected with rubber bump (7) of separation blade (6), inside fixedly connected with restrictor ring (8) of tee bend body (1), draw-in groove (9) have been seted up to one side of restrictor ring (8), the sealed pad (10) of left side fixedly connected with of restrictor ring (8).
2. The backflow preventer of a three-way connection pipe according to claim 1, wherein: the cross section size of the rotating rod (4) is matched with the inner size of the two circular grooves (3).
3. The backflow preventer of a three-way connection pipe according to claim 1, wherein: the baffle plate (6) is of a circular structure, and a flow limiting cavity formed in the flow limiting ring (8) is smaller than the baffle plate (6).
4. The backflow preventer of a three-way connection pipe according to claim 1, wherein: pressure discharge holes (11) are formed in the flow limiting ring (8), and the pressure discharge holes (11) are communicated with the clamping grooves (9).
5. The backflow preventer of a three-way connection pipe according to claim 1, wherein: the sealing gasket (10) is of an annular hollow structure, and the sealing gasket (10) is larger than a flow limiting cavity formed in the flow limiting ring (8).
6. The backflow preventer of a three-way connection pipe according to claim 1, wherein: the rubber bump (7) is matched with the clamping groove (9) in size.
7. The backflow preventer of a three-way connection pipe according to claim 1, wherein: the top of the right side of the baffle plate (6) is concave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020719737.XU CN212156181U (en) | 2020-04-30 | 2020-04-30 | Backflow preventer of three-way connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020719737.XU CN212156181U (en) | 2020-04-30 | 2020-04-30 | Backflow preventer of three-way connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212156181U true CN212156181U (en) | 2020-12-15 |
Family
ID=73721501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020719737.XU Expired - Fee Related CN212156181U (en) | 2020-04-30 | 2020-04-30 | Backflow preventer of three-way connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212156181U (en) |
-
2020
- 2020-04-30 CN CN202020719737.XU patent/CN212156181U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 Termination date: 20210430 |
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| CF01 | Termination of patent right due to non-payment of annual fee |