CN218625494U - Ball top valve with ball top connected without bolt - Google Patents
Ball top valve with ball top connected without bolt Download PDFInfo
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- CN218625494U CN218625494U CN202223069258.6U CN202223069258U CN218625494U CN 218625494 U CN218625494 U CN 218625494U CN 202223069258 U CN202223069258 U CN 202223069258U CN 218625494 U CN218625494 U CN 218625494U
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Abstract
A ball top valve without bolt connection on a ball top relates to the technical field of locking structures and comprises a valve body, a connecting shaft and the ball top, wherein the connecting shaft is connected to the valve body in a rotating mode, a linkage mechanism is arranged between the connecting shaft and the ball top, and a tensioning structure which enables the connecting shaft to move axially and is tightly pressed with the ball top is further arranged on the valve body. The utility model solves the problems that the locking bolt is easy to loosen and fall off along with the use of the device in the traditional technology and the elastic pin shaft is not easy to disassemble and assemble; and the locking structure of the connecting shaft and the ball top is mostly assembled from the inside of the valve body by the conventional device, so that the locking structure is limited by the assembly space, is inconvenient to operate and reduces the working efficiency.
Description
Technical Field
The utility model relates to a locking structure technical field, concretely relates to ball top does not have bolted connection's ball top valve.
Background
The dome valve is a novel fast-closing valve, adopts the most advanced international air-seal type structure, has no contact between a valve core and an inflatable sealing ring when the valve is opened and closed, is made of rubber with a special formula, can be widely applied to sealing of powdery materials, is a key part in a pneumatic conveying system, and is widely applied to the fields of electric power, metallurgy, chemical industry, food, pharmacy and the like. It is unique in that: it can shut off the flowing stream or the stationary column of material entering the pressure tank and then close to effect a seal. Thereby ensuring that the filling rate of the pressure tank is 100 percent, and the control principle is simple and reliable without depending on a material level meter of the sending tank.
The dome valve mainly comprises a valve body, a ball top, a connecting shaft and the like; two shafts are respectively arranged on two sides of the ball top, and the ball top is placed between the two shafts, supported by the two shafts and arranged on the valve body.
At present, the connection mode between the ball top and two shafts is mostly bolt connection: one end of the shaft is provided with a threaded hole, a bolt hole is formed in the ball top, a bolt penetrates through the bolt hole of the ball top and is screwed into the threaded hole in the shaft end, and therefore the shaft is firmly connected with the ball top. Another common connection method of the shaft to the dome is elastic pin connection: the two sides of the ball top are provided with through holes in special shapes, one end of the shaft is processed into a shape matched with the ball top hole and inserted into the special hole, a pin shaft hole is arranged in the radial direction of the hole, and the pin shaft penetrates through the pin shaft hole to firmly fix the shaft and the ball top.
United states patent No. US5642751A discloses an improved inflatable seat valve for handling granular or abrasive materials and discloses a valve assembly attachment. The text explicitly describes that the dome is connected to the shaft by a single bolt.
The device gradually exposes the defects of the technology along with the use, which is mainly shown in that: along with the long-time back and forth rotation of the ball top, the connecting shaft and the ball top bolt can be loosened and even fall off, so that the dome valve breaks down.
Chinese patent CN215568071U, the utility model discloses a double containment dome valve, including elastic construction, piston air chamber, wherein elastic construction, including the connecting piece, connect centre of sphere support and ball valve, its one end is in the centre of sphere support, the other end is in the ball valve.
The device gradually exposes the defects of the technology along with the use, which is mainly shown in that: when the parts need to be replaced, the elastic pin shaft is not easy to operate due to space limitation in disassembly and assembly, and has certain probability of loosening and falling after long-time use.
The prior art including the patents has the following disadvantages along with the use:
first, the phenomenon that becomes flexible, drop appears easily in current use in the bolt of locking to and the difficult problem of dismouting of elastic pin axle.
Secondly, the locking structure of the connecting shaft and the ball top is mostly assembled from the inside of the valve body by the existing device, so that the device is limited by the limit of the assembling space, is inconvenient to operate and reduces the working efficiency.
In view of the foregoing, it is apparent that the prior art has inconvenience and disadvantages in practical use, and thus, needs to be improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model is used for solving the problems that the locking bolt is easy to loosen and fall off and the elastic pin shaft is difficult to disassemble and assemble when the device in the traditional technology is used; and the locking structure of the connecting shaft and the ball top is mostly assembled from the inside of the valve body by the conventional device, so that the locking structure is limited by the assembly space, is inconvenient to operate and reduces the working efficiency.
In order to solve the above problem, the utility model provides a following technical scheme:
the ball top valve without the bolt connection comprises a valve body, a connecting shaft and a ball top, wherein the connecting shaft is rotatably connected onto the valve body, a linkage mechanism is arranged between the connecting shaft and the ball top, and the valve body is further provided with a tensioning structure which is used for moving the connecting shaft along the axial direction and compressing the ball top.
As an optimized scheme, the tensioning structure comprises a gland fixed on the outer wall of the valve body, and a pressure spring is arranged between the inner wall of the gland and the connecting shaft.
As an optimized scheme, the number of the connecting shafts is two, the two connecting shafts are oppositely arranged on opposite side walls of the valve body, one of the pressing covers is provided with a through hole, and the connecting shaft is provided with a driving section which penetrates through the through hole and extends to the outside.
As an optimized scheme, a necking section is arranged on the connecting shaft, the pressure spring is sleeved on the necking section, one end of the pressure spring abuts against the inner wall of the gland, and the other end of the pressure spring abuts against the end wall of the necking section.
As an optimized scheme, the gland is fixed on the outer wall of the valve body through bolts.
As an optimized scheme, the linkage mechanism comprises a driving block fixedly connected to the inner end part of the connecting shaft and arranged in a rectangular shape, and a ball top groove matched with the driving block is formed in the outer wall of the ball top.
As an optimized scheme, the driving block and the connecting shaft are integrally formed.
As an optimized scheme, a shaft hole is horizontally formed in the valve body, and the connecting shaft is installed in the shaft hole.
As an optimized scheme, a shaft sleeve is further sleeved on the connecting shaft and is located in the shaft hole.
As an optimized scheme, a plurality of bolts are uniformly distributed along the center of the connecting shaft.
Compared with the prior art, the beneficial effects of the utility model are that:
the pressure spring can make the connecting shaft tightly connected with the ball top by strong elasticity;
the shaft sleeve enables the driving shaft to smoothly rotate in the cavity of the valve body;
the connecting shaft and the ball top can be connected without bolts, and the phenomena of loosening and falling of the bolts are avoided;
because the gland sets up in the valve body outside for this structure dismouting is simpler.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of a portion a of fig. 1.
In the figure: 1-a dome; 2-a valve body; 3-connecting the shaft; 301-a drive section; 302-a gland; 303-pressure spring; 304-a shaft sleeve; 305-a drive block; 306-bolts.
Detailed Description
Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only used as examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 and fig. 2, the ball top valve without bolt connection comprises a valve body 2, a connecting shaft 3 and a ball top 1, wherein the connecting shaft 3 is rotatably connected to the valve body 2, a linkage mechanism is arranged between the connecting shaft 3 and the ball top 1, and the valve body 2 is further provided with a tensioning structure which enables the connecting shaft 3 to move axially and tightly press the ball top 1.
The tensioning mechanism comprises a gland 302 fixed on the outer wall of the valve body 2, and a pressure spring 303 is arranged between the inner wall of the gland 302 and the connecting shaft 3.
The two connecting shafts 3 are oppositely arranged on the opposite side walls of the valve body 2, one gland 302 is provided with a through hole, and the connecting shaft 3 is provided with a driving section 301 which penetrates through the through hole and extends to the outside.
A necking section is arranged on the connecting shaft 3, a pressure spring 303 is sleeved on the necking section, one end of the pressure spring 303 abuts against the inner wall of the gland 302, and the other end of the pressure spring 303 abuts against the end wall of the necking section.
The gland 302 is fixed to the outer wall of the valve body 2 by bolts 306.
The linkage mechanism comprises a driving block 305 which is fixedly connected with the inner end part of the connecting shaft 3 and is arranged in a rectangular shape, and a ball top groove matched with the driving block 305 is formed in the outer wall of the ball top 1.
The driving block 305 is provided integrally with the connecting shaft 3.
The valve body 2 is horizontally provided with a shaft hole, and the connecting shaft 3 is arranged in the shaft hole.
The connecting shaft 3 is further sleeved with a shaft sleeve 304, and the shaft sleeve 304 is located in the shaft hole.
A plurality of bolts 306 are uniformly distributed along the center of the connecting shaft 3.
The working principle of the device is as follows:
the pressure spring 303 enables the connecting shaft 3 to be tightly connected with the ball top 1 by virtue of strong elasticity;
the shaft sleeve 304 enables the driving shaft to smoothly rotate in the cavity of the valve body 2;
the connecting shaft 3 and the dome 1 can be connected without the bolt 306, so that the phenomena of loosening and falling of the bolt 306 are avoided;
because the gland 302 sets up in the valve body 2 outside for this structure dismouting is simpler.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (10)
1. Ball top does not have bolted connection's ball top valve, including valve body (2), connecting axle (3) and ball top (1), connecting axle (3) rotate connect in on the valve body (2), connecting axle (3) with be equipped with link gear, its characterized in that between ball top (1): and the valve body (2) is also provided with a tensioning structure which enables the connecting shaft (3) to move along the axial direction and tightly press the ball top (1).
2. The ball-top boltless valve of claim 1 wherein: the tensioning structure comprises a gland (302) fixed on the outer wall of the valve body (2), and a pressure spring (303) is arranged between the inner wall of the gland (302) and the connecting shaft (3).
3. The ball-top boltless valve of claim 2 wherein: the connecting shaft (3) is provided with two connecting shafts, the two connecting shafts are oppositely arranged on opposite side walls of the valve body (2), one of the pressing covers (302) is provided with a through hole, and the connecting shaft (3) is provided with a driving section (301) which penetrates through the through hole and extends to the outside.
4. The ball-top boltless valve of claim 2 wherein: a necking section is arranged on the connecting shaft (3), the pressure spring (303) is sleeved on the necking section, one end of the pressure spring (303) abuts against the inner wall of the gland (302), and the other end of the pressure spring (303) abuts against the end wall of the necking section.
5. The ball-top boltless valve of claim 2 wherein: the gland (302) is fixed on the outer wall of the valve body (2) through bolts (306).
6. The ball-top boltless valve of claim 1 wherein: the linkage mechanism comprises a driving block (305) which is fixedly connected to the inner end part of the connecting shaft (3) and is arranged in a rectangular shape, and a ball top groove matched with the driving block (305) is formed in the outer wall of the ball top (1).
7. The ball-top boltless valve of claim 6 wherein: the driving block (305) and the connecting shaft (3) are integrally formed.
8. The ball-top boltless valve of claim 1 wherein: the valve body (2) is horizontally provided with a shaft hole, and the connecting shaft (3) is arranged in the shaft hole.
9. The ball-top boltless valve of claim 8 wherein: the connecting shaft (3) is further sleeved with a shaft sleeve (304), and the shaft sleeve (304) is located in the shaft hole.
10. The ball-top boltless valve of claim 5, wherein: a plurality of bolts (306) are uniformly distributed along the center of the connecting shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223069258.6U CN218625494U (en) | 2022-11-19 | 2022-11-19 | Ball top valve with ball top connected without bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223069258.6U CN218625494U (en) | 2022-11-19 | 2022-11-19 | Ball top valve with ball top connected without bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218625494U true CN218625494U (en) | 2023-03-14 |
Family
ID=85447434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223069258.6U Active CN218625494U (en) | 2022-11-19 | 2022-11-19 | Ball top valve with ball top connected without bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218625494U (en) |
-
2022
- 2022-11-19 CN CN202223069258.6U patent/CN218625494U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 262100 north of Shuangfeng Road, Xingan street, Anqiu, Weifang, Shandong. Patentee after: SHANDONG ALPA POWDER TECHNOLOGY Co.,Ltd. Address before: 262100 north of Shuangfeng Road, Xingan street, Anqiu, Weifang, Shandong. Patentee before: Shandong Erpai Powder Technology Co.,Ltd. |