CN218625492U - Three-way ball valve - Google Patents
Three-way ball valve Download PDFInfo
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- CN218625492U CN218625492U CN202223015060.XU CN202223015060U CN218625492U CN 218625492 U CN218625492 U CN 218625492U CN 202223015060 U CN202223015060 U CN 202223015060U CN 218625492 U CN218625492 U CN 218625492U
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Abstract
The utility model belongs to the technical field of valves and discloses a three-way ball valve, which comprises a valve body, a valve rod and a valve ball, wherein, two water outlet flow passages and a water inlet flow passage which are mutually communicated are arranged in the valve body, and the intersection of the three flow passages in the valve body forms a valve cavity; the valve ball is arranged in the valve cavity, and a passage is arranged in the valve ball; the upper end of the valve rod is positioned outside the valve body, the lower end of the valve rod is inserted into the valve body and connected with the valve ball, and a first elastic piece is arranged between the lower end of the valve rod and the inner wall of the valve body; when the valve body is in operation, the valve rod drives the valve ball to rotate so as to open the ball valve, when external fluid flows through the valve ball, the valve ball pushes the valve rod to generate displacement in the fluid flowing direction under the action of fluid pressure, and the lower end of the valve rod abuts against the first elastic piece so as to avoid contact friction with the inner wall of the valve body.
Description
Technical Field
The utility model belongs to the technical field of the valve, more specifically relates to a tee bend ball valve.
Background
When the ball valve is opened, the valve ball displaces along the flowing direction of fluid under the action of fluid pressure and drives the valve rod, so that the valve rod generates certain offset in a mounting hole on the side surface of the valve body, the bottom of the valve rod is in contact with the valve body, dynamic friction is generated, and after the ball valve is used for a long time, metal powder is generated due to repeated dynamic friction; when the friction force is larger and larger, the moment is larger and the actuator is not driven to move, the O-shaped ring between the valve rod and the inner wall of the valve body is eccentrically worn, the sealing is insufficient, and the fluid medium leaks outwards.
SUMMERY OF THE UTILITY MODEL
To prior art's defect, the utility model aims to provide a three-way ball valve to solve above-mentioned problem.
The utility model provides a three-way ball valve, which comprises a valve body, a valve rod and a valve ball, wherein the valve body is provided with two water outlet flow passages and one water inlet flow passage which are mutually communicated, and the three flow passages form a valve cavity at the junction in the valve body; the valve ball is arranged in the valve cavity, and a passage is arranged in the valve ball; the upper end of the valve rod is positioned outside the valve body, the lower end of the valve rod penetrates into the valve body and is connected with the valve ball, and a first elastic piece is arranged between the lower end of the valve rod and the inner wall of the valve body; when the valve body works, the valve ball pushes the valve rod along the flowing direction of the fluid under the action of fluid pressure, so that the valve rod is abutted against the first elastic piece, and the contact friction between the valve rod and the inner wall of the valve body is avoided.
Furthermore, be provided with the installation cavity on the valve body lateral wall, the valve rod wears to establish in the installation cavity, just the valve rod with be provided with the second elastic component between the inner wall of installation cavity upper end.
Furthermore, a boss structure is arranged on the inner side of the lower end of the installation cavity, the first elastic piece is of a step structure matched with the boss structure, and the boss structure limits the first elastic piece in the valve body.
Further, the mounting groove has been seted up to the valve rod lower extreme, first elastic component is installed in the mounting groove, works as the valve ball receives fluid pressure to assault when upwards squinting, can drive the valve rod upwards squint and support and lean on the lower bottom surface of first elastic component to realize the buffering.
Further, a sealing element is arranged between the valve rod and the inner wall of the mounting cavity.
Further, a stop member is arranged on the valve rod and used for preventing the second elastic member from being separated from the mounting cavity.
Furthermore, the first elastic piece and the second elastic piece are both annular elastic pieces sleeved on the valve rod.
Furthermore, valve seats are symmetrically arranged in the valve cavity in the left-right direction, the valve balls are installed between the valve seats, and through holes capable of communicating the passage and the water outlet flow channel are formed in the valve seats.
Furthermore, a sealing gasket is arranged between the valve seat and the inner wall of the valve cavity.
Through the utility model discloses above technical scheme who thinks, compare with prior art, mainly possess following advantage:
1. the utility model discloses a set up first elastic component between the lower extreme position between valve rod and valve body for the valve rod drives the rotation of valve ball in order to open the ball valve, and when external fluid flowed through the valve ball, the valve ball pushed the valve rod and produced the displacement along fluid flow direction under the fluid pressure effect, and the valve rod lower extreme then supports and leans on first elastic component, in order to avoid producing the dynamic friction with the contact of valve body inner wall, and then avoids the condition because of the moment that permanent dynamic friction produced is big and executor drive motionless valve ball on the side.
2. The utility model discloses an installation in the mounting groove of valve rod lower extreme is installed to first elastic component, and when the valve ball upwards squinted and promote the valve rod upwards under the fluid pressure effect, valve rod and valve body inner wall were separated by first elastic component, can not produce the contact with the valve body inner wall, and then avoided the sealing member between valve rod and the installation cavity inner wall to receive wearing and tearing and become invalid.
3. The utility model discloses the side is provided with the installation cavity, and installation cavity lower extreme inboard is provided with the convex structure, and the mounting groove has been seted up to the valve rod lower extreme, and first elastic component is installed in the mounting groove, and the convex structure limits first elastic component in the valve body, when the valve ball receives fluid pressure to strike up the skew, can drive the valve rod and make progress the skew, and the valve rod supports to support in order to realize the buffering on the lower bottom surface of first elastic component.
Drawings
FIG. 1 is a schematic structural view of a three-way electric ball valve according to an embodiment of the present invention;
FIG. 2 is a schematic view of an opening structure of the three-way electric ball valve according to the embodiment of the present invention;
FIG. 3 is a schematic view of a valve stem according to an embodiment of the present invention;
fig. 4 is a schematic structural view of the first elastic member of the present invention.
In the figure: 1-second elastic part, 2-sealing part, 3-first elastic part, 3.1-boss structure, 4-valve rod, 4.1-stop part, 5-sealing gasket, 6-valve ball, 7-valve cover, 8-valve seat and 9-valve body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1, the three-way ball valve provided in this embodiment includes a valve body 9, a valve rod 4 and a valve ball 6, wherein two water outlet channels and one water inlet channel are opened in the valve body 9, the surfaces of the three channels are provided with openings, and the opening of one water outlet channel is further provided with a valve cover 7; as shown in the arrow direction of fig. 1, the three flow passages form a valve cavity at the intersection in the valve body 9, the valve ball 6 is arranged in the valve cavity, and a passage is formed in the valve ball 6 and can communicate the water inlet flow passage and the water outlet flow passage; the upper end of the valve rod 4 is positioned outside the valve body, the lower end of the valve rod is inserted into the valve body 9 and connected with the valve ball 6, and a first elastic part 3 is arranged between the lower end of the valve rod 4 and the inner wall of the valve body 9;
during operation, the valve rod 4 drives the valve ball 6 to rotate so as to open the ball valve, external fluid enters from the water inlet channel and flows through a channel in the valve ball 6, the valve ball 6 pushes the valve rod 4 to generate displacement towards the fluid flowing direction along the fluid flowing direction under the action of fluid pressure, and due to the existence of the first elastic piece 3, the outer side wall of the lower end of the valve rod 4 abuts against the first elastic piece 3 so as to avoid generating dynamic friction by contacting with the inner wall of the valve body 9.
In a preferred embodiment, a cylindrical mounting cavity is arranged on the side wall of the valve body 9, the valve rod 4 is arranged in the mounting cavity in a penetrating mode, the lower end of the valve rod 4 is connected with the valve ball 6, and the upper end of the valve rod 4 is connected with an external power mechanism, so that the electric opening and closing of the ball valve are realized; a sealing element 2 is arranged between the valve rod 4 and the inner wall of the mounting cavity, and as shown in fig. 3, the sealing element 2 is an upper sealing washer and a lower sealing washer, so that the sealing effect between the valve rod and the mounting cavity can be realized; and be provided with second elastic component 1 between the inner wall of valve rod 4 and installation cavity upper end, when valve ball 6 pushed valve rod 4 to produce the displacement to the fluid flow direction along fluid flow direction under the fluidic pressure effect, this second elastic component 1 can prevent that valve rod 4 upper end and installation cavity inner wall from producing the contact friction, and first elastic component 3 can avoid producing the contact friction between valve rod 4 lower extreme and the valve body inner wall to avoid the sealing member 2 wearing and tearing inefficacy between valve rod 4 middle part and the installation cavity inner wall.
In a preferred embodiment, a boss structure 3.1 is arranged on the inner side of the lower end of the mounting cavity, the first elastic element 3 is in a step structure matched with the boss structure 3.1, the step structure is composed of two coaxial gaskets with small upper parts and large lower parts as shown in fig. 4, and the boss structure 3.1 limits the first elastic element 3 in the valve body 9.
In a preferred embodiment, the lower end of the valve rod 4 is provided with a mounting groove, the first elastic element 3 is mounted in the mounting groove, and when the valve ball 6 is impacted by fluid pressure to deflect upwards, the valve rod 4 can be driven to deflect upwards and abut against the lower bottom surface of the first elastic element 3, so that buffering is realized.
In the preferred embodiment, the valve rod 4 is provided with a stop member 4.1 for preventing the second elastic member 1 from being removed from the mounting cavity, and the stop member 4.1 is formed integrally with the valve rod 4.
In the preferred embodiment, the first elastic member 3 and the second elastic member 1 are both annular elastic washers fitted over the valve stem 4.
In the preferred embodiment, a pair of valve seats 8 are symmetrically arranged in the valve cavity from left to right, the valve ball 6 is installed between the valve seats 8, a through hole capable of communicating the passage with the water outlet flow passage is formed in the valve seat 8, and the external fluid entering from the water inlet flow passage flows into the water outlet flow passage from the through hole through the passage in the valve ball 6.
In a preferred embodiment, a sealing gasket 5 is arranged between the valve seat 8 and the inner wall of the valve cavity for sealing the valve seat and the valve body.
The utility model discloses a set up two elastic components between the upper and lower both ends position between valve rod and valve body, when rotating valve rod 4, drive valve ball 6 rotatory when cutting off or putting through the medium in the pipeline or adjusting control pipeline in fluidic flow, the valve ball can promote the valve rod to produce displacement (horizontal direction or vertical direction) along the fluid flow direction under the fluid pressure effect, at this moment, valve rod upper end and lower extreme then can support and lean on corresponding second elastic component 1 or first elastic component 3, produce the dynamic friction with the contact of valve body inner wall in order to avoid the valve rod side, and then avoid the moment because of permanent dynamic friction produces the condition of actuator drive motionless valve ball greatly.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The three-way ball valve is characterized by comprising a valve body (9), a valve rod (4) and a valve ball (6), wherein two water outlet flow passages and one water inlet flow passage which are mutually communicated are arranged in the valve body (9), and a valve cavity is formed by the three flow passages at the intersection of the three flow passages in the valve body (9); the valve ball (6) is arranged in the valve cavity, and a passage is arranged in the valve ball (6); the upper end of the valve rod (4) is positioned outside the valve body, the lower end of the valve rod is arranged in the valve body (9) in a penetrating way and is connected with the valve ball (6), and a first elastic piece (3) is arranged between the lower end of the valve rod (4) and the inner wall of the valve body (9); when the valve is in work, the valve ball (6) pushes the valve rod (4) along the flowing direction of fluid under the action of fluid pressure to enable the valve rod to abut against the first elastic piece (3), so that the contact friction between the valve rod (4) and the inner wall of the valve body (9) is avoided.
2. A three-way ball valve according to claim 1, wherein a mounting cavity is arranged on the side wall of the valve body (9), the valve rod (4) is arranged in the mounting cavity in a penetrating way, and a second elastic element (1) is arranged between the valve rod (4) and the inner wall of the upper end of the mounting cavity.
3. A three-way ball valve according to claim 2, wherein a boss structure (3.1) is arranged at the inner side of the lower end of the mounting cavity, the first elastic member (3) is in a step structure matched with the boss structure (3.1), and the boss structure (3.1) limits the first elastic member (3) in the valve body (9).
4. A three-way ball valve according to claim 3, characterized in that the lower end of the valve rod (4) is provided with a mounting groove, the first elastic member (3) is mounted in the mounting groove, and when the valve ball (6) is deflected upwards by the impact of fluid pressure, the valve rod (4) can be driven to deflect upwards and abut against the lower bottom surface of the first elastic member (3) to realize buffering.
5. A three-way ball valve according to claim 2, wherein a sealing member (2) is further provided between the valve stem (4) and the inner wall of the mounting chamber.
6. A three-way ball valve according to claim 2, wherein said valve stem (4) is provided with a stop member (4.1) for preventing said second elastic member (1) from coming out of said mounting cavity.
7. A three-way ball valve according to claim 2, wherein said first elastic member (3) and said second elastic member (1) are annular elastic members fitted over said valve stem (4).
8. A three-way ball valve according to any one of claims 1 to 7, wherein valve seats (8) are symmetrically arranged in the valve cavity from left to right, the valve ball (6) is mounted between the valve seats (8), and through holes capable of communicating the passage and the water outlet flow passage are formed in the valve seats (8).
9. A three-way ball valve according to claim 8, characterized in that a sealing gasket (5) is arranged between the valve seat (8) and the inner wall of the valve chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223015060.XU CN218625492U (en) | 2022-11-11 | 2022-11-11 | Three-way ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223015060.XU CN218625492U (en) | 2022-11-11 | 2022-11-11 | Three-way ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218625492U true CN218625492U (en) | 2023-03-14 |
Family
ID=85446777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223015060.XU Active CN218625492U (en) | 2022-11-11 | 2022-11-11 | Three-way ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218625492U (en) |
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2022
- 2022-11-11 CN CN202223015060.XU patent/CN218625492U/en active Active
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