CN211820845U - Three-way check valve - Google Patents
Three-way check valve Download PDFInfo
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- CN211820845U CN211820845U CN201922314296.5U CN201922314296U CN211820845U CN 211820845 U CN211820845 U CN 211820845U CN 201922314296 U CN201922314296 U CN 201922314296U CN 211820845 U CN211820845 U CN 211820845U
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Abstract
The utility model discloses a three-way check valve, including the equal diameter three-way valve body, its inside case that is equipped with, the equal diameter three-way valve body just has seal baffle to the both sides opening part welding of case, seal baffle and coolant liquid import intercommunication, the one end and the coolant liquid export intercommunication that equal diameter three-way valve body did not weld seal baffle, the case includes pipeline and sealing device, and this pipeline is inside to run through and to be equipped with the bolt to fix sealing device at the both ends of pipeline through the nut of bolt one end installation, and pipeline, bolt, sealing device and seal baffle all set up with the axle center, have solved the easy not hard up problem of case threaded connection, avoid the case to drop the normal use that influences the check valve.
Description
Technical Field
The utility model relates to a power electronic equipment technical field especially relates to a three-way check valve.
Background
At present, two water pumps are commonly adopted in a power electronic device cooling system for improving the reliability of the system, the two water pumps are configured by one use and one standby, and a check valve is commonly adopted for preventing a medium from flowing back. CN201521677U discloses a three-way automatic reversing valve, has replaced two check valves with a three-way check valve, has simplified the structure, but its case both ends adopt threaded connection, and are easy to become flexible, and long-term use may cause and drop to influence the normal use of check valve.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome the problem that exists among the above-mentioned, provide a three-way check valve, solved the easy not hard up problem of case threaded connection, avoid the case to drop and influence the normal use of check valve.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a three-way check valve, including the equal diameter tee bend valve body, its inside case that is equipped with, the equal diameter tee bend valve body just has seal baffle to the both sides opening part welding of case, seal baffle and coolant liquid import intercommunication, the one end and the coolant liquid export intercommunication of equal diameter tee bend valve body not welded seal baffle, the case includes pipeline and sealing device, and this pipeline inside runs through and is equipped with the bolt to fix sealing device at the both ends of pipeline through the nut of bolt one end installation, and pipeline, bolt, sealing device and seal baffle all set up with the axle center.
Preferably, the sealing device comprises a sliding block, a sealing ring and a pressing plate, the sealing ring is arranged between the sliding block and the pressing plate, the sealing ring is attached to the sliding block through the pressing plate and a bolt, and the sliding block is attached to the inner surface of the pipeline.
Preferably, the sealing baffle is in a cylindrical shape with a groove, a liquid passing hole is formed in the coaxial position of the groove and the sealing device, and the aperture of the liquid passing hole is larger than the diameter of the pressing plate and smaller than the diameter of the sealing ring.
Preferably, the outer surface of the sliding block is attached to the inner surface of the equal-diameter three-way valve body and is connected with the equal-diameter three-way valve body in a sliding fit mode, and the end face of the sliding block is provided with through channels which are uniformly distributed on the circumference.
Preferably, the sealing ring is made of EPDM.
Preferably, the cross section of the valve core is I-shaped.
Compared with the prior art, the utility model discloses the beneficial effect who has does: this three-way check valve adopts the constant diameter tee bend as the check valve body, moreover, the steam generator is simple in structure, and the space size is little, the case includes pipeline and sealing device simultaneously, this pipeline is inside to run through and is equipped with the bolt, and fix sealing device at the both ends of pipeline through the bolt, the problem that case threaded connection is not hard up easily has been solved, avoid the case to drop and influence the normal use of check valve, furthermore, the constant diameter tee bend valve body has sealing baffle just to the welding of the both sides opening part of case, thereby two flange parts have been saved, the structure size is reduced, and the cost is saved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic axial view of a three-way check valve according to the present invention;
fig. 2 is a cross-sectional view of a three-way check valve according to the present invention;
fig. 3 is a schematic view of a valve core structure of the three-way check valve of the present invention.
Description of the drawings: 1. an equal-diameter three-way valve body; 2. a valve core; 201. a pipeline; 202. a sealing device; 2021. a slider; 2022. a seal ring; 2023. pressing a plate; 203. a bolt; 204. a nut, 3 and a sealing baffle; 4. a coolant inlet; 5. a coolant outlet; 6. and a flow passage through groove.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The utility model discloses at the concrete implementation as follows: the three-way check valve shown in figures 1-3 comprises an equal-diameter three-way valve body 1, the equal-diameter three-way valve body is adopted as the check valve body, the structure is simple, the space size is small, a valve core 2 is arranged in the three-way valve body, the cross section of the valve core 2 is in an I shape, sealing baffles 3 are welded on two side openings of the equal-diameter three-way valve body 1, which are opposite to the valve core 2, so that two flange parts are saved, the structure size is reduced, the cost is saved, the sealing baffles 3 are communicated with a cooling liquid inlet 4, one end of the equal-diameter three-way valve body 1, which is not welded with the sealing baffles 3, is communicated with a cooling liquid outlet 5, the valve core 2 comprises a pipeline 201 and a sealing device 202, a bolt 203 penetrates through the pipeline 201, the sealing device 202 is fixed at two ends of the pipeline 201 through a nut 204 arranged, the problem that the threaded connection of the valve core 2 is easy to loosen is solved, the valve core 2 is prevented from falling off to influence the normal use of the check valve, the sealing device 202 comprises a sliding block 2021, a sealing ring 2022 and a pressure plate 2023, the sealing ring 2022 is arranged between the sliding block 2021 and the pressure plate 2023, the seal ring 2022 is tightly attached to the slider 2021 by the pressure plate 2023 and the bolt 203, the slide block 2021 is tightly attached to the inner surface of the pipeline 201, the outer surface of the slide block 2021 is attached to the inner surface of the equal-diameter three-way valve body 1, and is connected with the equal-diameter three-way valve body 1 in a sliding fit manner, the end surface of the sliding block 2021 is uniformly distributed with flow passage through grooves 6 on the circumference, the sealing ring 2022 adopts EPDM material, the equal-diameter three-way valve body 1, the bolt 203, the pipeline 201, the sliding block 2021, the pressure plate 2023 and the sealing baffle 3 all adopt stainless steel material, the sealing baffle 3 is in a cylindrical shape with a groove, and the groove and the sealing device 202 are coaxially provided with a liquid passing hole, and the aperture of the liquid passing hole is larger than the diameter of the pressure plate 2023 and smaller than the diameter of the sealing ring 2022.
The working principle is as follows: when one end of the cooling liquid inlet 4 is opened, the sliding block 2021 moves in the equal-diameter three-way valve body 1 through the generated pressure difference, the cooling liquid flows in from the flow channel through groove 6 of the sliding block 2021 and flows out from the cooling liquid outlet 5, and meanwhile, the sealing ring 2022 on the side where the cooling liquid is not input is attached to the sealing baffle 3 to play a sealing role, so that the cooling liquid on the other end is prevented from flowing into the equal-diameter three-way valve body 1.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A three-way check valve is characterized in that: the sealing device comprises an equal-diameter three-way valve body, a valve core is arranged in the equal-diameter three-way valve body, sealing baffles are welded at two side openings of the equal-diameter three-way valve body, the sealing baffles are communicated with a cooling liquid inlet, one end of the equal-diameter three-way valve body, which is not welded with the sealing baffles, is communicated with a cooling liquid outlet, the valve core comprises a pipeline and a sealing device, a bolt penetrates through the inside of the pipeline, the sealing device is fixed at two ends of the pipeline through a nut installed at one end of the bolt, and the pipeline, the bolt, the sealing device and the.
2. The three-way check valve of claim 1, wherein: the sealing device comprises a sliding block, a sealing ring and a pressing plate, wherein the sealing ring is arranged between the sliding block and the pressing plate, the sealing ring is tightly attached to the sliding block through the pressing plate and a bolt, and the sliding block is tightly attached to the inner surface of the pipeline.
3. The three-way check valve of claim 1, wherein: the sealing baffle is in a cylindrical shape with a groove, a liquid passing hole is formed in the coaxial position of the groove and the sealing device, and the aperture of the liquid passing hole is larger than the diameter of the pressing plate and smaller than the diameter of the sealing ring.
4. The three-way check valve of claim 2, wherein: the outer surface of the sliding block is attached to the inner surface of the equal-diameter three-way valve body and is connected with the equal-diameter three-way valve body in a sliding fit mode, and the end face of the sliding block is provided with through grooves with flow channels which are uniformly distributed on the circumference.
5. The three-way check valve of claim 2, wherein: the sealing ring is made of EPDM material.
6. The three-way check valve of claim 1, wherein: the section of the valve core is I-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922314296.5U CN211820845U (en) | 2019-12-20 | 2019-12-20 | Three-way check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922314296.5U CN211820845U (en) | 2019-12-20 | 2019-12-20 | Three-way check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211820845U true CN211820845U (en) | 2020-10-30 |
Family
ID=73032824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922314296.5U Active CN211820845U (en) | 2019-12-20 | 2019-12-20 | Three-way check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211820845U (en) |
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2019
- 2019-12-20 CN CN201922314296.5U patent/CN211820845U/en active Active
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