CN210088055U - Major diameter agricultural irrigation ball valve - Google Patents
Major diameter agricultural irrigation ball valve Download PDFInfo
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- CN210088055U CN210088055U CN201920959615.5U CN201920959615U CN210088055U CN 210088055 U CN210088055 U CN 210088055U CN 201920959615 U CN201920959615 U CN 201920959615U CN 210088055 U CN210088055 U CN 210088055U
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- ball valve
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- connecting surface
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Abstract
The utility model relates to a large-diameter agricultural irrigation ball valve, which comprises a first spherical shell and a second spherical shell, wherein 2 spherical shells are respectively provided with a hemispherical ball head accommodating cavity at the inner side; the 2 spherical shells are respectively provided with a flange connecting surface, a plurality of connecting mounting holes are uniformly distributed on the connecting surface along the central axis of the ball valve, and the first spherical shell and the second spherical shell are connected together by fastening screws penetrating through the mounting holes; the valve ball comprises a ball head with a cylindrical through hole and a cylindrical rotating handle; and sealing rings are respectively arranged on two sides of the ball head and are respectively fixed in the hemispherical cavities of the first spherical shell and the second spherical shell. The utility model adopts the technical scheme that 2 spherical shells are manufactured by half injection molding at the ball cavity mounting part of the ball head and are connected through the fastener, thereby ensuring the injection molding quality of the spherical shells and meeting the assembly requirements of the ball valve; and the sealing performance is improved by arranging a sealing ring and the like, so that the irrigation requirement is met.
Description
Technical Field
The utility model relates to a ball valve, especially split type plastic ball valve for agricultural irrigation.
Background
With the development of agricultural modernization, large farms are gradually formed in China; the large farm is generally subjected to centralized irrigation at present, and in northwest areas with water shortage, irrigation facilities such as ditches and the like cannot be adopted for open irrigation due to large surface evaporation amount; in order to save water, irrigation pipelines are generally laid for irrigation.
In the process of laying irrigation pipelines, PVC pipes are generally adopted, so that the cost is low and the service life is long; the matched water valve which needs to use a rubber and plastic product is generally an agricultural irrigation ball valve, and the rubber and plastic ball valve has a simple structure and is easy to manufacture; however, as the size of the ball valve increases, particularly when placed on a main irrigation pipe, the pipe diameter is typically over 150 mm.
Conventional agricultural irrigation ball valve generally adopts the integral casing of making, then the bulb, seal part etc. of reloading, when the pipeline diameter reaches more than phi 150mm, when as major diameter agricultural irrigation ball valve, if still adopt integrative injection moulding casing, because the casing size is too big, easily causes the defect of moulding plastics, and seal part lacks effective support, easily takes place to become flexible in the use, causes the dribbling.
The prior art also discloses some ball valves with split structures, like the split ball valve of chinese patent publication No. CN2317365Y, which uses the valve body as split, and then connects through the form of pipe thread, this connection mode seems simple, but when using for reference to apply to the manufacture of large-diameter agricultural irrigation ball valves, the pipe thread injection molding of large diameter is difficult to realize, and the thread precision is poor, easily causes the connection unreliable, but causes leakage to a greater extent. Of course, there is also a split ball valve with chinese patent publication No. CN2921482Y, in which the screw thread at the connection part is changed to screw and nut connection, which solves the problem of strength at the connection part, but also adopts the original complicated sealing form for the sealing problem of the valve ball operating handle, and when the size of the ball valve becomes larger, the complicated sealing member combination also brings about a sudden increase in cost.
The durable ball valve disclosed in the Chinese patent publication No. CN208457257U also adopts a split structure design, but adopts a special sealing form for the sealing design, so that the manufacturing difficulty is increased, and the durable ball valve is not beneficial to the manufacturing field of large-diameter agricultural irrigation ball valves for reference.
Therefore, the structure of the large-diameter agricultural irrigation ball valve needs to be improved and designed aiming at the manufacture of the large-diameter agricultural irrigation ball valve, so as to meet the existing agricultural irrigation requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a major diameter agricultural irrigation ball valve, which is characterized in that the ball valve comprises a left ball shell and a right ball shell which are a first ball shell and a second ball shell, wherein the 2 ball shells are respectively provided with a hemispherical ball head accommodating cavity at the inner side, and the 2 ball shells are respectively provided with an interface extending outwards;
the 2 spherical shells are respectively provided with flange connecting surfaces, namely the first spherical shell is provided with a first flange connecting surface, the second spherical shell is provided with a second flange connecting surface, the first flange connecting surface and the second flange connecting surface are uniformly provided with a plurality of connecting and mounting holes along the central axis of the ball valve, and fastening screws penetrate through the mounting holes on the first flange connecting surface and are screwed into the mounting holes on the second flange connecting surface to connect the first spherical shell and the second spherical shell together;
a first rotating shaft mounting position is arranged above the first flange connecting surface, a second rotating shaft mounting position is arranged above the second flange connecting surface, the inner sides of the first rotating shaft mounting position and the second rotating shaft mounting position are semi-cylindrical cavities, and the semi-cylindrical cavities on the 2 sides wrap the rotating handle of the valve ball; an operating handle is fixed above the valve ball rotating handle.
Furthermore, the valve ball comprises a ball head with a cylindrical through hole and a cylindrical rotating handle; sealing rings are respectively arranged on two sides of the ball head and are respectively fixed in the hemispherical cavities of the first ball shell and the second ball shell; the sealing ring is in a ring shape, and the inner diameter of the sealing ring is larger than the diameter of the through hole in the ball head.
Furthermore, one side of the sealing ring is provided with an arc-shaped concave surface, and the radian of the arc-shaped concave surface is consistent with that of the ball body of the ball head.
Still further, the opposite side of sealing ring is equipped with annular groove the hemisphere cavity inboard of first spherical shell, second spherical shell is equipped with corresponding annular arch, annular groove joint is in the annular arch.
Still further, be equipped with semicircle annular sealing washer mounting groove on the interior lateral wall face of first pivot installation position, second pivot installation position respectively the cover is equipped with an O shape sealing washer on the rotation handle, O shape sealing washer pressure is in the sealing washer mounting groove.
Furthermore, limiting bulges are arranged above the first rotating shaft mounting position and the second rotating shaft mounting position, and the limiting bulges are arranged in the plane where the operating handle is located.
The utility model discloses major diameter agricultural irrigation ball valve adopts and divides the installation ball chamber position at the bulb to carry out half injection moulding and makes 2 spherical shell, and then connects through the fastener, has guaranteed the injection moulding quality of spherical shell, and has satisfied the equipment demand of ball valve; sealing performance is improved by arranging the sealing ring and the O-shaped sealing ring, and irrigation requirements are met.
For the utility model discloses major diameter agricultural irrigation ball valve for current irrigation ball valve, has following advantage:
1. the split type structural design is adopted, so that the problem of injection molding defects of the large-size spherical shell is solved;
2. the structure design is simple, and the assembly is convenient;
3. the sealing element has simple structure, easy manufacture, small number of the sealing elements and effective reduction of cost.
Drawings
Fig. 1 is a schematic view 1 of the overall structure of the large-diameter agricultural irrigation ball valve of the present invention;
FIG. 2 is a schematic view of the overall structure of the large-diameter agricultural irrigation ball valve of the present invention 2;
FIG. 3 is an expanded schematic view 1 of the large diameter agricultural irrigation ball valve of the present invention;
FIG. 4 is an expanded schematic view 2 of the large diameter agricultural irrigation ball valve of the present invention;
FIG. 5 is a cross-sectional view of the large diameter agricultural irrigation ball valve of the present invention;
reference numerals: the device comprises a first spherical shell 1, a first flange connecting surface 11, a first rotating shaft mounting position 12 and a limiting block 13; the second spherical shell 2, a second flange connecting surface 21 and a second rotating shaft mounting position 22; a fastening screw 3; a valve ball 4, a ball head 41 and a rotating handle 42; sealing ring 5, operating handle 6, O-ring 7.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the overall structure of the large-diameter agricultural irrigation ball valve of the present invention includes a left spherical shell and a right spherical shell, i.e. a first spherical shell 1 and a second spherical shell 2, wherein the 2 spherical shells are divided at the middle plane of the ball head of the ball valve, the 2 spherical shells are extended outwards and provided with interfaces, and the interfaces are connected with external pipelines, and the interfaces for external connection can be in various forms, and the interfaces in the drawings are only used for reference; 2 individual spherical shell does not be equipped with flange joint face in the bulb mid-plane punishment of ball valve, promptly first spherical shell 1 is equipped with first flange joint face 11, second spherical shell 2 is equipped with second flange joint face 21, first flange joint face 11, second flange joint face 21 have a plurality of connection mounting holes along the axis equipartition of ball valve, will through fastening screw 3 first flange joint face 11, second flange joint face 21 laminating are in the same place, are about to first spherical shell 1, second spherical shell 2 link together. The fastening screw 3 can be a self-tapping screw, and is directly screwed into the through hole of the second flange connecting surface 21 to realize locking.
A first rotating shaft mounting position 12 is arranged above the first flange connecting surface 11, a second rotating shaft mounting position 22 is arranged above the second flange connecting surface 21, the inner sides of the first rotating shaft mounting position 12 and the second rotating shaft mounting position 22 are semi-cylindrical cavities, and the first rotating shaft mounting position 12 and the second rotating shaft mounting position 22 are also attached together along with the attachment of the first flange connecting surface 11 and the second flange connecting surface 21 and wrap a valve ball rotating handle of the ball valve; an operating handle 6 is fixed above the valve ball rotating handle, and the on-off state of the ball valve can be controlled by swinging the operating handle 6. Further, limiting protrusions are arranged above the first rotating shaft mounting position 12 and the second rotating shaft mounting position 22, in this embodiment, a limiting block 13 with an annular width of 1/4 is arranged above the first rotating shaft mounting position 12, and can limit the operation angle of the operation handle 6 to determine the on-off state position of the ball valve. In some cases, the limiting block 13 may also be set to 1/2 circular ring width, and the specific setting width is related to the width of the operating handle 6 itself, so that the allowable rotation angle of the ball valve is only about 90 °, and the allowable rotation angle can only be changed from a full-on state to a full-off state.
As shown in fig. 3 and 4, the expansion schematic diagram of the large-diameter agricultural irrigation ball valve of the present invention is shown, which is based on fig. 1 and 2, and further shows the internal structure of the large-diameter agricultural irrigation ball valve of the present invention. At the junction of first spherical shell 1, second spherical shell 2, form a globular cavity, install a valve ball 4 in it, valve ball 4 is including the bulb 41 that has cylindrical through-hole, and a cylindrical rotatory handle 42, through rotatory handle 42, the adjustment the through-hole of bulb 41 and the relative angle, the position of the joint through-hole of first spherical shell 1, second spherical shell 2 realize the utility model discloses the break-make state of major diameter agricultural irrigation ball valve is adjusted, and the water capacity is adjusted.
Further, be equipped with sealing ring 5 in first spherical shell 1, the second spherical shell 2 respectively, as shown in fig. 5 do the utility model discloses large diameter agricultural irrigation ball valve's cross-sectional view, sealing ring 5 is ring shape, and its internal diameter is greater than the through-hole diameter that sets up on bulb 41.
When the ball head 41 rotates to an open state, namely the axis of the through hole on the ball head 41 is parallel to the axis of the joint through hole of the first spherical shell 1 and the second spherical shell 2; at this moment, 2 individual sealing ring 5 is pressed on bulb 41's the spheroid cambered surface, thereby make the utility model discloses the both sides pipeline of major diameter agricultural irrigation ball valve link up, realize irrigating, and owing to there is sealing ring 5, make water can not permeate bulb 41 with between the casing of first spherical shell 1, second spherical shell 2, and then take place to leak.
When the ball head 41 rotates to the off state, namely the axis of the through hole on the ball head 41 is vertical to the axis of the joint through hole of the first spherical shell 1 and the second spherical shell 2; at this time, the 2 sealing rings 5 are still pressed on the sphere arc surface of the ball head 41, and the main sphere of the ball head 41 is located in the middle of the joint through holes at the two sides to realize sealing, and due to the sealing rings 5, water can not penetrate between the ball head 41 and the shells of the first spherical shell 1 and the second spherical shell 2, so that leakage occurs.
Furthermore, one side of the sealing ring 5 is provided with an arc-shaped concave surface, the radian of the arc-shaped concave surface is consistent with the radian of the ball head 41, and the sealing ring can be more effectively sealed.
Still further, the opposite side of sealing ring 4 is equipped with the annular groove, and is corresponding be in the hemisphere cavity inboard of first spherical shell 1, second spherical shell 2 is equipped with annular protrusion, the annular groove joint is in the annular protrusion, works as like this when bulb 41 takes place to rotate, sealing ring 5 can not take place to shift, leads to sealed inefficacy.
In order to further improve the leakproofness be equipped with the sealing washer mounting groove respectively on the inside wall face of first pivot installation position 12, second pivot installation position 22, form a complete ring shape sealing washer mounting groove after folding up, it is corresponding be in the cover is equipped with an O shape sealing washer 7 on the rotatory handle 42, O shape sealing washer 7 is pressed in the sealing washer mounting groove, seals rotatory handle 42, can prevent on the one hand that the ball valve from taking place to leak when being half-open state, and on the other hand can prevent that outside dust from entering into the ball valve in, causing bulb 41 wearing and tearing.
The utility model discloses major diameter agricultural irrigation ball valve adopts and divides the installation ball chamber position at bulb 41 to carry out half injection moulding and makes 2 spherical shell, and then connects through the fastener, has guaranteed the injection moulding quality of spherical shell, and has satisfied the equipment demand of ball valve; improve sealing performance through setting up sealing ring 4, satisfy the irrigation demand.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention, the equivalents and substitutions being limited only by the scope of the appended claims.
Claims (6)
1. The large-diameter agricultural irrigation ball valve is characterized by comprising a left ball shell and a right ball shell which are a first ball shell and a second ball shell, wherein the 2 ball shells are respectively provided with a hemispherical ball head accommodating chamber at the inner side, and the 2 ball shells are respectively provided with a connector extending outwards;
the 2 spherical shells are respectively provided with flange connecting surfaces, namely the first spherical shell is provided with a first flange connecting surface, the second spherical shell is provided with a second flange connecting surface, the first flange connecting surface and the second flange connecting surface are uniformly provided with a plurality of connecting and mounting holes along the central axis of the ball valve, and fastening screws penetrate through the mounting holes on the first flange connecting surface and are screwed into the mounting holes on the second flange connecting surface to connect the first spherical shell and the second spherical shell together;
a first rotating shaft mounting position is arranged above the first flange connecting surface, a second rotating shaft mounting position is arranged above the second flange connecting surface, the inner sides of the first rotating shaft mounting position and the second rotating shaft mounting position are semi-cylindrical cavities, and the semi-cylindrical cavities on the 2 sides wrap the rotating handle of the valve ball; an operating handle is fixed above the valve ball rotating handle.
2. A large diameter agricultural irrigation ball valve according to claim 1, wherein the valve ball includes a ball head with a cylindrical through hole, and a cylindrical rotating handle; sealing rings are respectively arranged on two sides of the ball head and are respectively fixed in the hemispherical cavities of the first ball shell and the second ball shell; the sealing ring is in a ring shape, and the inner diameter of the sealing ring is larger than the diameter of the through hole in the ball head.
3. The large-diameter agricultural irrigation ball valve according to claim 2, wherein one side of the sealing ring is provided with an arc-shaped concave surface, and the radian of the arc-shaped concave surface is consistent with the radian of the ball body of the ball head.
4. The large-diameter agricultural irrigation ball valve according to claim 3, wherein an annular groove is formed in the other side of the sealing ring, corresponding annular protrusions are formed in the inner sides of the hemispherical cavities of the first spherical shell and the second spherical shell, and the annular groove is clamped in the annular protrusions.
5. The large-diameter agricultural irrigation ball valve according to claim 1, wherein semi-circular sealing ring mounting grooves are respectively formed in inner side wall surfaces of the first rotating shaft mounting position and the second rotating shaft mounting position, and an O-shaped sealing ring is sleeved on the rotating handle and presses in the sealing ring mounting grooves.
6. The large-diameter agricultural irrigation ball valve according to claim 1, wherein a limiting protrusion is arranged above the first rotating shaft mounting position and the second rotating shaft mounting position, and the limiting protrusion is arranged in a plane where the operating handle is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920959615.5U CN210088055U (en) | 2019-06-24 | 2019-06-24 | Major diameter agricultural irrigation ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920959615.5U CN210088055U (en) | 2019-06-24 | 2019-06-24 | Major diameter agricultural irrigation ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210088055U true CN210088055U (en) | 2020-02-18 |
Family
ID=69483883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920959615.5U Expired - Fee Related CN210088055U (en) | 2019-06-24 | 2019-06-24 | Major diameter agricultural irrigation ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210088055U (en) |
-
2019
- 2019-06-24 CN CN201920959615.5U patent/CN210088055U/en not_active Expired - Fee Related
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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: 20200218 Termination date: 20210624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |