CN212672469U - Connecting structure of ball body and valve rod - Google Patents
Connecting structure of ball body and valve rod Download PDFInfo
- Publication number
- CN212672469U CN212672469U CN202021404181.1U CN202021404181U CN212672469U CN 212672469 U CN212672469 U CN 212672469U CN 202021404181 U CN202021404181 U CN 202021404181U CN 212672469 U CN212672469 U CN 212672469U
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- Prior art keywords
- spheroid
- pin
- valve rod
- lug
- recess
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- 239000007788 liquid Substances 0.000 claims abstract description 7
- 230000007547 defect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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Abstract
The utility model discloses a connection structure of spheroid and valve rod, including spheroid and valve rod, the spheroid is arranged in fixed ball valve inner chamber, follows the liquid circulation hole has been seted up to spheroid axial direction, still be equipped with the recess on the spheroid, the one end of valve rod is equipped with the lug, the lug is installed in the recess, its characterized in that: still include the fixed pin, the recess with all be equipped with a plurality of round pin interfaces on the lug, the spheroid with form pin junction portion between the valve rod, the fixed pin is inserted and is inlayed in the round pin interface. The utility model discloses a institutional advancement overcomes the defect among the prior art, under guaranteeing same design intensity, spheroid and valve rod hookup location size are slightly less relatively, further weaken because of the influence that the connection structure trompil brought to spheroid intensity.
Description
Technical Field
The utility model relates to a hydraulic pressure valve body technical field, in particular to connection structure of spheroid and valve rod.
Background
The ball valve is used as a common connecting piece in a hydraulic pipeline, is mainly used for cutting off, distributing and changing the flowing direction of a medium in the pipeline, can realize the opening and closing of the pipeline only by rotating 90 degrees and a very small rotating torque, is a ball body, and is driven by a valve rod and rotates around the axis of the ball valve. Among the prior art, spheroid and valve rod connection structure adopt the four directions to be connected, begin the rectangle recess for in the spheroid, the one end and the rectangle recess matched with of valve rod are equipped with the rectangle lug, the rectangle lug is inserted and is inlayed in the rectangle recess, and this connected mode makes conveniently, and the cost is lower, and is also lower to processing equipment and personnel's requirement, but this connection structure also has certain problem: this connection structure is guaranteeing under the certain circumstances of design intensity, can lead to connecting the size bigger than normal, and it is bigger to weaken sphere intensity, and the square structure is as the square structure, and square angle department easily wears and breaks, stress concentration appears to use to cause certain potential safety hazard to the later stage, consequently, it is necessary to improve in order to solve above-mentioned technical problem to prior art.
SUMMERY OF THE UTILITY MODEL
To prior art not enough, the utility model aims to provide a connection structure of spheroid and valve rod overcomes the defect among the prior art, under guaranteeing same design strength, spheroid and valve rod hookup location size are slightly less relatively, further weaken the influence because of connecting the structure open pores brings spheroid intensity.
The utility model provides a connection structure of spheroid and valve rod, includes spheroid and valve rod, the spheroid is arranged in fixed ball valve inner chamber, follows the liquid circulation hole has been seted up to spheroid axial direction, still be equipped with the recess on the spheroid, the one end of valve rod is equipped with the lug, the lug is installed in the recess, its characterized in that: the groove is provided with a pin notch on the inner wall of the groove, the lug is provided with a pin interface, a pin joint part is formed between the groove and the lug, and the fixing pin is inserted and embedded in the pin joint part.
The utility model discloses a further improvement is, the recess is circular recess, the lug is circular lug, round pin notch equidistance circumference distributes on the recess just round pin notch equidistance circumference distributes on the lug.
The utility model discloses a further improvement scheme is, the round pin interface is the ring interface.
The utility model discloses a further improvement scheme is, the fixed pin is the cylindric lock.
The utility model discloses a further improvement is, the round pin notch with the round pin interface all is equipped with 4, and is corresponding with it, the fixed pin is 4.
Compared with the prior art, the utility model, following obvious advantage has:
the utility model provides a pair of connection structure of spheroid and valve rod, recess on the spheroid is circular recess, lug on the valve rod is circular lug, circumference such as round pin notch distributes on the recess, and circumference such as round pin notch distributes on the lug, the lug inlays in the recess, form pin junction between lug and the recess, the fixed pin is inserted and is inlayed and realize connecting in the pin junction, spheroid and valve rod are connected and are adopted the fixed pin to connect, the fixed pin is the cylindric lock, under guaranteeing same design strength, spheroid and valve rod hookup location size are littleer relatively, thereby alright weaken the influence of bringing because of the hookup structure trompil to spheroid intensity, and this connection structure can bear great torque transmission, it is applicable in small-bore high-pressure valve structure.
Drawings
FIG. 1 is a schematic view of a connection structure of a ball and a valve rod of the present invention
FIG. 2 is a schematic diagram of a ball structure of a connection structure of a ball and a valve rod of the present invention
FIG. 3 is a schematic view of the valve rod structure of the connection structure of the ball and the valve rod of the present invention
FIG. 4 is a schematic diagram of the connection structure of the ball and the valve rod applied to the operation of the ball valve
In the figure, 1-sphere, 2-liquid circulation hole, 3-groove, 4-pin interface, 5-valve rod, 6-lug, 7-fixed pin, 8-stepped shaft, 9-keyway, 10-fixed ball valve and 11-pin notch.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a ball and valve stem connecting structure, comprising a ball 1 and a valve stem 5, the ball body 1 is arranged in the inner cavity of the fixed ball valve 10, the ball body 1 is provided with a liquid through hole 2 communicated with the middle, the ball body 1 is also provided with a groove 3, the groove 3 is vertical to the liquid circulation hole 2, one end of the valve rod 5 is provided with a round convex block 6, the corresponding part is provided with a circular groove 3, pin notches 11 are distributed on the groove 3 at equal intervals and pin notches 4 are distributed on the lug 6 at equal intervals, the pin slot 11 and the pin joint 4 are both circular ring joints, the circular convex block 6 is arranged in the circular groove 3, a pin joint part is formed between the convex block 6 and the groove 3, the fixing pin 7 is a cylindrical pin and is inserted into the pin joint, the other end of the valve rod 5 is provided with a stepped shaft 8, and a shaft section of the stepped shaft 8 is provided with a key groove 9.
When the ball valve works, the stepped shaft 8 of the valve rod 5 is connected with a first gear through a key groove 9 on the shaft section, a second gear is meshed with the first gear, the rotating shaft of the second gear is fixed at the output end of the stepping motor, the stepping motor can drive the valve rod 5 to start rotating, the ball body 1 is connected with the valve rod 5 through 4 cylindrical pins, the valve rod 5 can drive the ball body 1 to start rotating, and the ball body 1 is arranged in the inner cavity of the fixed ball valve 10, so that when the ball body 1 rotates by 90 degrees, the inlet and the outlet of the ball valve are all spherical, the valve is closed, and the flow of a medium is stopped; when the ball valve rotates 90 degrees, the inlet and outlet of the ball valve should be provided with a ball opening, the liquid flowing hole 2 is communicated with the inlet and outlet of the ball valve, thereby the flow is opened, and the flow resistance is basically not existed.
Since the fixing pin 7 is a cylindrical pin, and mainly bears shear and extrusion stress during operation, materials with high hardness and good mechanical properties are mainly selected, and 17-4PH and AISI 410(75K) are generally preferred.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a connection structure of spheroid and valve rod, includes spheroid (1) and valve rod (5), in fixed ball valve (10) inner chamber was arranged in spheroid (1), along liquid circulation hole (2) have been seted up to spheroid axial direction, still be equipped with recess (3) on spheroid (1), the one end of valve rod (5) is equipped with lug (6), lug (6) are installed in recess (3), its characterized in that: still include fixed pin (7), be equipped with round pin notch opening (11) on recess (3) inner wall, be equipped with round pin interface (4) on lug (6), recess (3) with form pin joint portion between lug (6), fixed pin (7) are inserted and are inlayed in the pin joint portion.
2. A connection structure of a ball and a valve stem according to claim 1, wherein: the groove (3) is a circular groove, the bump (6) is a circular bump, the pin notch openings (11) are circumferentially distributed on the groove at equal intervals, and the pin interfaces (4) are circumferentially distributed on the bump (6) at equal intervals.
3. A connection structure of a ball and a valve stem according to claim 2, wherein: the pin interface (4) is a circular ring interface.
4. A connection structure of a ball and a valve stem according to claim 1, wherein: the fixing pin (7) is a cylindrical pin.
5. A connection structure of a ball and a valve stem according to claim 1, wherein: the pin notch opening (11) with round pin interface (4) all are equipped with 4, corresponding with it, the fixed pin is 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021404181.1U CN212672469U (en) | 2020-07-16 | 2020-07-16 | Connecting structure of ball body and valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021404181.1U CN212672469U (en) | 2020-07-16 | 2020-07-16 | Connecting structure of ball body and valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212672469U true CN212672469U (en) | 2021-03-09 |
Family
ID=74839958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021404181.1U Expired - Fee Related CN212672469U (en) | 2020-07-16 | 2020-07-16 | Connecting structure of ball body and valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212672469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531163A (en) * | 2021-07-30 | 2021-10-22 | 江苏亿阀股份有限公司 | Novel eight-way reversing ball valve |
-
2020
- 2020-07-16 CN CN202021404181.1U patent/CN212672469U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113531163A (en) * | 2021-07-30 | 2021-10-22 | 江苏亿阀股份有限公司 | Novel eight-way reversing ball valve |
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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: 20210309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |