CN219388689U - Tee bend rotary valve structure - Google Patents
Tee bend rotary valve structure Download PDFInfo
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- CN219388689U CN219388689U CN202320243658.XU CN202320243658U CN219388689U CN 219388689 U CN219388689 U CN 219388689U CN 202320243658 U CN202320243658 U CN 202320243658U CN 219388689 U CN219388689 U CN 219388689U
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Abstract
The utility model discloses a three-way rotary valve structure, and particularly relates to the technical field of valves, which comprises a valve body, a connecting rod and a valve core, wherein a connecting cavity and a valve cavity are formed in the valve body, the connecting cavity is communicated with the valve cavity, a first water through hole, a second water through hole and a third water through hole are formed in the valve body, the first water through hole, the second water through hole and the third water through hole are respectively communicated with the valve cavity, the valve cavity is internally provided with the valve core, the valve core is internally provided with the connecting hole, the connecting cavity is internally provided with the connecting rod, one end of the connecting rod is fixed with the valve core, and one side end of the connecting rod, far away from the valve core, is provided with a mounting hole. The connecting rod, the valve core and the valve body are assembled in an interference way to form a tight seal, so that the structure is compact, the leakage is prevented, the corrosion is prevented, and the service life is long.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a three-way rotary valve structure.
Background
In a titrator of an analytical instrument, pipetting and dripping of a titrant are switched by a three-way valve. The high-precision titrator has high precision, corrosion resistance, good sealing performance, high reliability and small volume for the three-way valve. The three-way valve used in the traditional titrator is a solenoid valve or a common three-way valve driven by a motor. Solenoid valves have some drawbacks for use in titrators: the reliability is low, and when the electromagnetic valve is opened and closed, a small drop of solution can drop out or retract a small section of solution in the dropping pipeline, so that the high-precision requirement of the titrator can not be met. The common three-way valve driven by a motor has some defects when applied to a titrator: the valve has the advantages of large volume, wear resistance, through holes in the top of the valve body, poor valve core sealing and easy liquid leakage.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present utility model provides a three-way rotary valve structure to solve the above-mentioned problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tee bend rotary valve structure, includes valve body, connecting rod and case, connecting chamber and valve pocket have been seted up in the valve body, connecting chamber and valve pocket are linked together, just first limbers, second limbers and third limbers have been seted up on the valve body, first limbers, second limbers and third limbers are linked together with the valve pocket respectively, be equipped with the case in the valve pocket, the connecting hole has been seted up in the case, just be equipped with the connecting rod in the connecting chamber, the one end of connecting rod is fixed mutually with the case, the mounting hole has been seted up to one side that the case was kept away from to the connecting rod.
In a preferred embodiment, the end of the valve core remote from the connecting rod is in a conical structure.
In a preferred embodiment, the valve body is made of PCTFE material, the connecting rod and the valve core are integrally formed, and the connecting rod and the valve core are made of PTFE material.
In a preferred embodiment, the mounting holes are in a semicircular structure, and the mounting holes are matched with the motor rotating shaft.
In a preferred embodiment, the first water through hole, the second water through hole and the third water through hole are arranged in a Y shape.
Compared with the prior art, the utility model has the technical effects and advantages that:
the valve body is made of PCTFE material, the connecting rod and the valve core are integrally formed, the connecting rod and the valve core are made of PTFE material, and the connecting rod, the valve core and the valve body are assembled in an interference mode, so that tight sealing is formed, the structure is compact, leakage is prevented, corrosion is prevented, and the service life is long; the first water through hole, the second water through hole and the third water through hole are respectively communicated with the valve cavity, the first water through hole, the second water through hole and the third water through hole are arranged in a Y shape, a connecting hole is formed in the valve core, a mounting hole is formed in one side end, far away from the valve core, of the connecting rod, and the motor rotating shaft is inserted into the mounting hole, so that the motor is convenient to rotate, the connecting rod and the valve core are driven to rotate, and the flow direction of fluid is convenient to adjust.
Drawings
FIG. 1 is a schematic plan view of the present utility model;
FIG. 2 is a cross-sectional view of the present utility model;
fig. 3 is a schematic plan view of the spool and connecting rod of the present utility model.
The reference numerals are: 1. a valve body; 2. a connecting cavity; 3. a valve cavity; 4. a first water through hole; 5. a second water through hole; 6. a third water through hole; 7. a connecting rod; 8. a valve core; 9. a mounting hole; 10. and a connection hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
According to a three-way rotary valve structure shown in fig. 1-3, the three-way rotary valve structure comprises a valve body 1, a connecting rod 7 and a valve core 8, wherein a connecting cavity 2 and a valve cavity 3 are formed in the valve body 1, the connecting cavity 2 is communicated with the valve cavity 3, a first water through hole 4, a second water through hole 5 and a third water through hole 6 are formed in the valve body 1, the first water through hole 4, the second water through hole 5 and the third water through hole 6 are respectively communicated with the valve cavity 3, the valve core 8 is arranged in the valve cavity 3, a connecting hole 10 is formed in the valve core 8, the connecting rod 7 is arranged in the connecting cavity 2, one end of the connecting rod 7 is fixed with the valve core 8, and a mounting hole 9 is formed in one side end, away from the valve core 8, of the connecting rod 7.
In a preferred embodiment, the end of the valve core 8 far away from the connecting rod 7 is in a conical structure, and the valve cavity 3 is provided with a groove matched with the conical structure, so that the stability of the position of the valve core 8 is maintained when the valve core 8 rotates.
In a preferred embodiment, the valve body 1 is made of PCTFE material, the connecting rod 7 and the valve core 8 are integrally formed, and the connecting rod 7 and the valve core 8 are made of PTFE material, so that the connecting rod 7 and the valve core 8 are assembled with the valve body 1 in an interference manner, and a tight seal is formed.
In a preferred embodiment, the mounting hole 9 has a semicircular structure, the mounting hole 9 is matched with a motor rotating shaft, and the motor rotating shaft is inserted into the mounting hole 9, so that the motor is convenient to rotate to drive the connecting rod 7 and the valve core 8 to rotate, and the flow direction of fluid is regulated.
In a preferred embodiment, the first water through hole 4, the second water through hole 5 and the third water through hole 6 are arranged in a Y shape, so that the water outlet can be freely controlled in a full-open mode, a full-closed mode or a one-open-one-close mode, and the use is convenient.
In summary, the three-way rotary valve structure is provided in the utility model, the valve body 1 is made of PCTFE material, the connecting rod 7 and the valve core 8 are integrally formed, the connecting rod 7 and the valve core 8 are made of PTFE material, the connecting rod 7 and the valve core 8 are assembled with the valve body 1 in an interference manner, so that a tight seal is formed, the structure is compact, leakage is prevented, corrosion is prevented, and the service life is long; the first water through hole 4, the second water through hole 5 and the third water through hole 6 are respectively communicated with the valve cavity 3, the first water through hole 4, the second water through hole 5 and the third water through hole 6 are arranged in a Y shape, a connecting hole 10 is formed in the valve core 8, a mounting hole 9 is formed in one side end, far away from the valve core 8, of the connecting rod 7, and a motor rotating shaft is inserted into the mounting hole 9, so that the motor is convenient to rotate, the connecting rod 7 and the valve core 8 are driven to rotate, and the flow direction of fluid is convenient to adjust.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (5)
1. The utility model provides a tee bend rotary valve structure, includes valve body (1), connecting rod (7) and case (8), its characterized in that: the valve is characterized in that a connecting cavity (2) and a valve cavity (3) are formed in the valve body (1), the connecting cavity (2) is communicated with the valve cavity (3), a first water through hole (4), a second water through hole (5) and a third water through hole (6) are formed in the valve body (1), the first water through hole (4), the second water through hole (5) and the third water through hole (6) are respectively communicated with the valve cavity (3), a valve core (8) is arranged in the valve cavity (3), a connecting hole (10) is formed in the valve core (8), a connecting rod (7) is arranged in the connecting cavity (2), one end of the connecting rod (7) is fixed with the valve core (8), and a mounting hole (9) is formed in one side end, far away from the valve core (8), of the connecting rod (7).
2. A three-way rotary valve structure according to claim 1, wherein: one end of the valve core (8) far away from the connecting rod (7) is in a conical structure.
3. A three-way rotary valve structure according to claim 1, wherein: the valve body (1) is made of PCTFE material, the connecting rod (7) and the valve core (8) are integrally formed, and the connecting rod (7) and the valve core (8) are made of PTFE material.
4. A three-way rotary valve structure according to claim 1, wherein: the mounting holes (9) are of semicircular structures, and the mounting holes (9) are matched with the motor rotating shaft.
5. A three-way rotary valve structure according to claim 1, wherein: the first water through hole (4), the second water through hole (5) and the third water through hole (6) are arranged in a Y shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320243658.XU CN219388689U (en) | 2023-02-17 | 2023-02-17 | Tee bend rotary valve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320243658.XU CN219388689U (en) | 2023-02-17 | 2023-02-17 | Tee bend rotary valve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219388689U true CN219388689U (en) | 2023-07-21 |
Family
ID=87165855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320243658.XU Active CN219388689U (en) | 2023-02-17 | 2023-02-17 | Tee bend rotary valve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219388689U (en) |
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2023
- 2023-02-17 CN CN202320243658.XU patent/CN219388689U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |