CN203532882U - Downflow type backflow preventing device - Google Patents
Downflow type backflow preventing device Download PDFInfo
- Publication number
- CN203532882U CN203532882U CN201320704121.5U CN201320704121U CN203532882U CN 203532882 U CN203532882 U CN 203532882U CN 201320704121 U CN201320704121 U CN 201320704121U CN 203532882 U CN203532882 U CN 203532882U
- Authority
- CN
- China
- Prior art keywords
- tank
- sealing plate
- chamber
- intake channel
- external diameter
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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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000000694 effects Effects 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 24
- 230000002265 prevention Effects 0.000 abstract 5
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model discloses a downflow type backflow prevention device. The downflow type backflow preventing device comprises a backflow prevention tank, a T-shaped transverse strip, a sealing plate and springs, wherein the backflow prevention tank is a shell of the downflow type backflow prevention device and consists of a tank inner chamber, a tank body inflow pipe and a tank bottom outflow pipe; the T-shaped transverse strip is horizontally arranged in the middle of the tank body inner chamber; the sealing plate is sleeved on the T-shaped transverse strip; four springs are respectively on the upper part, the lower part, the left side and the right side of the T-shaped transverse strip; the sealing plate can slide front and back on the T-shaped transverse strip, and can be sealed with the tail end of the tank body inflow pipe for preventing fluid backflow. The downflow type backflow prevention device can effectively prevent backflow of pipeline fluid, and is simple in structure, easy to realize, convenient to install and maintain and low in cost.
Description
Technical field
The utility model relates to fluid circuit control gear, particularly a kind of anti-backflow device that prevents that fluid from flowing backwards.
Background technique
In fluid line, often by power source, for flowing, the fluid in pipeline provides power, and fluid is flowed in a certain direction.When power source quits work or when pipeline occurs unusual condition; ducted fluid often there will be the phenomenon of refluence; cause the pollution of equipment or the damage of power source equipment; thereby the operation that impact is produced; when serious, can there is security incident; the safety of life-threatening and property, thereby in fluid circuit, through being everlasting, need the place of anti-back flow that anti-backflow device is often installed.
Model utility content
The purpose of this utility model is in order to address the above problem, and provides, a kind of down-flowing type anti-backflow device, and the utility model can effectively prevent the generation of pipeline fluid backflow phenomenon, and realizes easily, easy for installation.
The utility model is by anti-back flow tank, T shape horizontal stripe, sealing plate and spring form, wherein anti-back flow tank is the shell of this down-flowing type anti-backflow device, main body is the cylinder-like structure of horizontal positioned, one side closed, by can body intake channel, in tank body, at the bottom of chamber and tank, outlet pipe forms, can body intake channel is located at the can body one side neutral position of anti-back flow tank, in tank body, in the middle of chamber, face toward T shape horizontal stripe of can body intake channel direction horizontal positioned, on T shape horizontal stripe, overlapping sealing plate, T shape horizontal stripe is respectively provided with four springs up and down, spring one end is fixed in the side inner walls of chamber in tank body, the other end is connected with sealing plate, sealing plate can slide front and back on T shape horizontal stripe, and can seal mutually with the end of can body intake channel, at the bottom of tank, outlet pipe is arranged on lower end, chamber in the tank body after sealing plate.
The integral structure that described T shape horizontal stripe is rectangular by cylindrical body and circular baffle plate forms, longitudinal section is T shape, and the rectangular one end of cylindrical body is fixed on the center of chamber sidewall in tank body, and the other end is fixed on the center of circular baffle plate, in length and tank body, chamber is equal in length, and external diameter is 10～100mm; Circular baffle plate is fixed on the rectangular top of cylindrical body, and on same vertical surface, external diameter is 1.2～2 times of the rectangular external diameter of cylindrical body with can body intake channel end.
Described spring is four Compress Springs, the working stroke of the spring side near inner tank wall that is can body intake channel end to outlet pipe at the bottom of tank, and when can body intake channel has fluid to flow into, spring is compressed into fluid and can flows out from outlet pipe at the bottom of tank.
Described sealing plate is ring-type, be enclosed within cylindrical body rectangular on, be connected with four springs, sealing plate external diameter equates with indoor footpath in tank body, internal diameter equates with the rectangular external diameter of cylindrical body, and sealing plate front end is with Gask-O-Seal, and the internal-and external diameter of sealing gasket and sealing plate internal-and external diameter are equal to, material is rubber or teflon, under spring tension effect, seals mutually with can body intake channel end and circular baffle plate.
The beneficial effects of the utility model:
The utility model can effectively prevent the generation of fluid refluence phenomenon.
The utility model is simple in structure, it is easy, convenient for installation and maintenance, cheap to realize.
Accompanying drawing explanation
Fig. 1 is structural representation when the utility model flows into without fluid or fluid flows backwards.
Fig. 2 is the structural representation of the utility model fluid while normally flowing into.
Wherein, 1-anti-back flow tank; 11-can body intake channel; Chamber in 12-tank body; Outlet pipe at the bottom of 13-tank; 2-T shape horizontal stripe; 21-cylindrical body is rectangular; 22-circular baffle plate; 3-sealing plate; 31-sealing gasket; 4-spring.
Embodiment
Refer to shown in Fig. 1, the present embodiment is by anti-back flow tank 1, T shape horizontal stripe 2, sealing plate 3 and spring 4 form, wherein anti-back flow tank 1 is the shell of this down-flowing type anti-backflow device, the cylinder-like structure that anti-back flow tank 1 is horizontal positioned, anti-back flow tank 1 one side closed, anti-back flow tank 1 is by can body intake channel 11, in tank body, at the bottom of chamber 12 and tank, outlet pipe 13 forms, can body intake channel 11 is located at the can body one side neutral position of anti-back flow tank 1, in tank body, chamber device has T shape horizontal stripe 2, sealing plate 3 and spring 4, at the bottom of tank, outlet pipe 13 is arranged in tank body after sealing plate 3 12 lower ends, chamber near a side of can body intake channel 11.
In tank body, in the middle of chamber 12, face toward T shape horizontal stripe 2 of can body intake channel 11 direction horizontal positioned, the integral structure that T shape horizontal stripe 2 is comprised of cylindrical body rectangular 21 and circular baffle plate 22, longitudinal section is T shape, rectangular 21 one end of cylindrical body are fixed on the center of chamber 12 sidewalls in tank body, the other end is fixed on circular baffle plate 22 center, in length and tank body, chamber 12 is equal in length, and external diameter is 10～100mm; Circular baffle plate 22 is fixed on the top of cylindrical body rectangular 21, and on same vertical surface, external diameter is 1.2～2 times of rectangular 21 external diameters of cylindrical body with can body intake channel 11 ends.On T shape horizontal stripe 2, overlapping sealing plate 3, T shape horizontal stripe 2 is respectively provided with four Compress Springs 4 up and down.
This down-flowing type anti-backflow device is not in the situation that normally there is no fluid process, as shown in Figure 1, sealing plate 3 in anti-back flow tank 1 seals mutually with can body intake channel 11 ends under the tension force effect of spring 4, when having fluid normally to flow into from can body intake channel 11, pressure lower spring 4 at fluid is compressed, sealing plate 3 is opened, and fluid flows out from outlet pipe at the bottom of tank 13; When refluence phenomenon occurs for anti-back flow tank 1, fluid is from the inflow of outlet pipe 13 at the bottom of tank, and because sealing plate 3 seal mutually with can body intake channel 11, fluid is blocked in the interior chamber 12 of tank body of anti-back flow tank 1, thus the generation of the phenomenon that prevents from flowing backwards.
Claims (3)
1. a down-flowing type anti-backflow device, it is characterized in that: be by anti-back flow tank (1), T shape horizontal stripe (2), sealing plate (3) and spring (4) form, the cylinder-like structure that anti-back flow tank (1) is horizontal positioned, anti-back flow tank (1) one side closed, anti-back flow tank (1) is by can body intake channel (11), in tank body, at the bottom of chamber (12) and tank, outlet pipe (13) forms, can body intake channel (11) is located at the can body one side neutral position of anti-back flow tank (1), in the middle of chamber in tank body (12), face toward can body intake channel (11) T shape horizontal stripe of direction horizontal positioned (2), on T shape horizontal stripe (2), overlapping sealing plate (3), T shape horizontal stripe (2) is respectively provided with four springs (4) up and down, spring (4) one end is fixed in the side inner walls of chamber (12) in tank body, the other end is connected with sealing plate (3), sealing plate (3) can slide before and after T shape horizontal stripe (2) is upper, and can seal mutually with the end of can body intake channel (11), outlet pipe at the bottom of tank (13) is arranged on lower end, chamber (12) in the tank body after sealing plate (3).
2. a kind of down-flowing type anti-backflow device according to claim 1, it is characterized in that: the integral structure that described T shape horizontal stripe (2) is comprised of cylindrical body rectangular (21) and circular baffle plate (22), longitudinal section is T shape, cylindrical body rectangular (21) one end is fixed on the center of chamber (12) sidewall in tank body, the other end is fixed on the center of circular baffle plate (22), in length and tank body, chamber (12) is equal in length, and external diameter is 10～100mm; Circular baffle plate (22) is fixed on cylindrical body rectangular (21) top, and on same vertical surface, external diameter is 1.2～2 times of cylindrical body rectangular (21) external diameter with can body intake channel (11) end.
3. a kind of down-flowing type anti-backflow device according to claim 1, it is characterized in that: described sealing plate (3) is ring-type, be enclosed within on cylindrical body rectangular (21), be connected with four springs (4), sealing plate (3) external diameter equates with chamber (12) internal diameter in tank body, internal diameter rectangular with cylindrical body (21) external diameter equates, sealing plate (3) front end is with Gask-O-Seal (31), the internal-and external diameter of sealing gasket (31) and sealing plate (3) internal-and external diameter are equal to, material is rubber or teflon, under spring (4) tension force effect, seal mutually with can body intake channel (11) end and circular baffle plate (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704121.5U CN203532882U (en) | 2013-11-11 | 2013-11-11 | Downflow type backflow preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704121.5U CN203532882U (en) | 2013-11-11 | 2013-11-11 | Downflow type backflow preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532882U true CN203532882U (en) | 2014-04-09 |
Family
ID=50419091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320704121.5U Expired - Lifetime CN203532882U (en) | 2013-11-11 | 2013-11-11 | Downflow type backflow preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397956A (en) * | 2020-04-10 | 2020-07-10 | 无为华塑矿业有限公司 | Sampling equipment for quality detection of active lime |
-
2013
- 2013-11-11 CN CN201320704121.5U patent/CN203532882U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397956A (en) * | 2020-04-10 | 2020-07-10 | 无为华塑矿业有限公司 | Sampling equipment for quality detection of active lime |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |