CN210265905U - Ball-shaped butterfly valve with small flow resistance - Google Patents
Ball-shaped butterfly valve with small flow resistance Download PDFInfo
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- CN210265905U CN210265905U CN201921224660.2U CN201921224660U CN210265905U CN 210265905 U CN210265905 U CN 210265905U CN 201921224660 U CN201921224660 U CN 201921224660U CN 210265905 U CN210265905 U CN 210265905U
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- flow resistance
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Abstract
The utility model discloses a spherical butterfly valve that flow resistance is little, the arc valve barrel of seting up including valve body and valve body center pin department, the casing has been seted up to the vertical center pin top position of valve body, and goes up the casing up end and pass through the fixedly connected with roof, roof inner chamber cover is equipped with the control lever, the vertical end inner chamber screw thread of T shape sealing block closes soon and is connected with the double-screw bolt, and the laminating of double-screw bolt up end has the steel ball, the laminating of steel ball top and case bottom center department. The utility model discloses in, owing to adopted the through-hole that the case inner chamber was seted up and the two spherical surface structures of interior concavity two-way arrangement of case both sides, realized reducing to the flow resistance coefficient of case, owing to adopted the laminating between steel ball and the center department of case bottom, realized separating with the sealed piece upper end of T shape after the case jack-up again, reduced the possibility of case and arc valve barrel adhesion.
Description
Technical Field
The utility model relates to a valve body equipment technical field especially relates to a ball butterfly valve that flow resistance is little.
Background
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve with a closing member which is a disc and rotates around a valve shaft to open and close.
The existing butterfly valve is widely applied to actual pipeline control, however, the existing butterfly valve often has the following defects in the use process, firstly, when the valve body is opened, the valve core part of the butterfly valve causes certain resistance to water flow due to thickness, so that the water delivery capacity of the valve body is reduced; secondly, the valve core of the butterfly valve is often communicated with an external valve rod only, so that one side of the valve core, far away from the valve rod, is in long-time contact with the valve body to cause adhesion and difficulty in rotation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: in order to solve the problem of large resistance when the valve core is filled with water, the spherical butterfly valve with small flow resistance is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a spherical butterfly valve that flow resistance is little, includes the arc valve barrel that valve body and valve body center pin department seted up, the casing has been seted up to the vertical center pin top position of valve body, and goes up casing up end fixedly connected with roof, roof inner chamber cover is equipped with the control lever, and the control lever runs through casing center part, arc valve barrel inner chamber is provided with the case, and case top center department and control lever bottom end fixed connection, the vertical center pin bottom position of valve body has seted up down the casing, and terminal surface fixedly connected with T shape seal block under the casing, the vertical end inner chamber screw thread of T shape seal block closes soon and is connected with the double-screw bolt, and the laminating of double-screw bolt up end has the steel ball, the laminating of steel ball top and case.
As a further description of the above technical solution:
the side section of the arc-shaped valve sleeve is of a circular structure, the wall thickness between the arc-shaped valve sleeve and the valve body is the same, and the inner cavity of the arc-shaped valve sleeve is rotatably connected with the valve core.
As a further description of the above technical solution:
and a sealing ring is clamped at one side of the joint part between the upper shell and the top plate, which is close to the control rod, and the inner ring of the sealing ring is jointed with the side surface wall of the control rod.
As a further description of the above technical solution:
the valve core is characterized in that the section of the front view of the valve core is of a concave two-spherical-surface structure which is arranged in a two-way mode, the valve core is symmetrically distributed about the central axis of the valve body, the section of the side view of the valve core is of a circular structure, a plurality of through holes penetrating through the side walls of the front side and the rear side of the valve core are formed in the inner cavity of the valve core, and the distance between the through holes is equal to the.
As a further description of the above technical solution:
two sealing belts are respectively bonded on the two spherical side walls of the arc valve sleeve and the valve core, and the two sealing belts are in transition fit.
As a further description of the above technical solution:
the valve body is characterized in that the circular end faces on the two sides of the valve body are symmetrically and integrally formed with flange plates, and the T-shaped sealing block is rotatably connected with the bottom end of the valve core.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, the waterproof construction of case and arc valve barrel has been adopted, owing to adopted the transition fit of the sealing strip between case and the arc valve barrel, the valve body of case with arc valve barrel both sides has been realized keeping apart mutually, thereby the isolation manger plate of valve body has been realized, owing to adopted the fixed connection between control lever and the case, case accessible control lever has been realized carrying out operation control from the external portion of valve body again, simultaneously owing to adopted the laminating between sealing washer and the control lever, and because roof and last casing are fixed to the extrusion of sealing washer, realized the sealing washer waterproof seal between control lever and the valve body.
2. The utility model discloses in, adopted the little structure of case flow resistance, owing to adopted under the case terminal surface center department and T shape to seal the rotation between the piece up end and be connected, realized the fixed spacing of terminal surface under the case to increase the stability of case, owing to adopted the interior concavity two-way arrangement two spherical surface structure of through-hole and case both sides that the case inner chamber was seted up again, realized that the case rotates 90 back and carries out the water delivery, thereby realized the reduction to the flow resistance coefficient of case.
3. The utility model discloses in, adopted the structure that reduces the case resistance, owing to adopted the screw thread between double-screw bolt and the sealed piece of T shape to close soon and be connected, realized that the sealed piece of T shape closes the in-process soon and promotes the steel ball up-and-down motion, owing to adopted the laminating between steel ball and the center department of case bottom again, realized separating with the sealed piece upper end of T shape after the case jack-up to realized receiving the reduction of resistance when rotating the case, reduced the possibility of case and arc valve barrel adhesion simultaneously.
Drawings
Fig. 1 is a schematic view of the internal structure of a spherical butterfly valve with small flow resistance according to the present invention;
fig. 2 is a schematic side view of the internal structure of a ball-shaped butterfly valve with low flow resistance according to the present invention;
fig. 3 is a schematic view of the internal structure of a top view of a ball-shaped butterfly valve with a small flow resistance according to the present invention.
Illustration of the drawings:
1. a control lever; 2. a valve body; 3. a valve core; 4. a lower housing; 5. an arc-shaped valve sleeve; 6. a T-shaped sealing block; 7. a stud; 8. steel balls; 9. a through hole; 10. a flange plate; 11. sealing tape; 12. an upper housing; 13. a seal ring; 14. a top plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a small flow resistance spherical butterfly valve comprises a valve body 2 and an arc valve sleeve 5 arranged at the central shaft of the valve body 2, wherein an upper shell 12 is arranged at the top of the vertical central shaft of the valve body 2, the upper end surface of the upper shell 12 is fixedly connected with a top plate 14, an inner cavity of the top plate 14 is sleeved with a control rod 1, the control rod 1 penetrates through the central part of the upper shell 12, a valve core 3 is arranged in an inner cavity of the arc valve sleeve 5, the top center of the top of the valve core 3 is fixedly connected with the bottom end of the control rod 1, a lower shell 4 is arranged at the bottom of the vertical central shaft of the valve body 2, the lower end surface of the lower shell 4 is fixedly connected with a T-shaped sealing block 6, the inner cavity of the vertical end of the T-shaped sealing block 6 is in threaded screwing connection with a stud 7, a steel ball 8 is attached to the upper end surface of the stud 7, the top of the steel ball 8, the fixed connection can be realized by adopting bolt connection or welding.
Specifically, as shown in fig. 1 and 2, the side cross section of the arc valve sleeve 5 is a circular structure, the wall thickness between the arc valve sleeve 5 and the valve body 2 is the same, and the inner cavity of the arc valve sleeve 5 is rotatably connected with the valve core 3, so that the arc valve sleeve 5 is sealed and isolated by the arc valve sleeve 5, and water can be conveniently introduced after the arc valve sleeve 5 is rotated.
Specifically, as shown in fig. 1, a sealing ring 13 is clamped at a side, close to the control rod 1, of a joint portion between the upper shell 12 and the top plate 14, and an inner ring of the sealing ring 13 is jointed with a side surface wall of the control rod 1, so that the control rod 1 and the upper shell 12 are isolated and waterproof.
Specifically, as shown in fig. 1 and 2, the front view cross section of the valve core 3 is a concave two-spherical-surface structure arranged in two directions, the valve core 3 is symmetrically distributed about the central axis of the valve body 2, the side view cross section of the valve core 3 is a circular structure, a plurality of through holes 9 penetrating through the side walls of the front side and the rear side of the valve core 3 are formed in the inner cavity of the valve core 3, and the distance between the through holes 9 is equal to the wall thickness of the valve core 3, so that the through holes 9 can communicate water with water flow, and the resistance of the valve core 3 is.
Specifically, as shown in fig. 1 and 3, two sealing bands 11 are respectively bonded to two spherical side walls of the arc-shaped valve sleeve 5 and the valve core 3, and the two sealing bands 11 are in transition fit, so that the arc-shaped valve sleeve 5 increases the sealing effect during sealing, and reduces the circulation of water flow.
Specifically, as shown in fig. 1, the flange plates 10 are symmetrically and integrally formed on the circular end faces on the two sides of the valve body 2, and the T-shaped sealing block 6 is rotatably connected with the bottom end of the valve core 3, so that the T-shaped sealing block 6 supports and rotates the valve core 3, and the valve core 3 is prevented from shifting or being difficult to rotate.
The working principle is as follows: when the valve is used, firstly, the valve body 2 at two sides of the arc-shaped valve sleeve 5 is mutually isolated by the valve core 3 through the transition fit of the sealing strip 11 between the valve core 3 and the arc-shaped valve sleeve 5 so as to realize the water isolating function of the valve body 2, the valve core 3 can be operated and controlled from the outside of the valve body 2 through the control rod 1 through the fixed connection between the control rod 1 and the valve core 3, and the sealing ring 13 is sealed and waterproof between the control rod 1 and the valve body 2 through the attachment between the sealing ring 13 and the control rod 1 and the extrusion fixation of the top plate 14 and the upper shell 12 to the sealing ring 13; secondly, the center of the lower end face of the valve core 3 is rotationally connected with the upper end face of the T-shaped sealing block 6, so that the lower end face of the valve core 3 is fixed and limited, the stability of the valve core 3 is improved, and two spherical surface structures are arranged in two directions through a through hole 9 formed in the inner cavity of the valve core 3 and concave shapes on two sides of the valve core 3, so that the valve core 3 can convey water after rotating for 90 degrees, and the obstruction of the valve core 3 to water flow is reduced; finally, the T-shaped sealing block 6 is connected with the stud 7 in a screwing mode through threads, so that the steel ball 8 is pushed to move up and down in the screwing process of the T-shaped sealing block 6, and the valve core 3 is separated from the upper end of the T-shaped sealing block 6 after being jacked up through the fitting between the steel ball 8 and the center of the bottom end of the valve core 3, and the resistance applied to the rotation of the valve core 3 is reduced.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A spherical butterfly valve with small flow resistance comprises a valve body (2) and an arc-shaped valve sleeve (5) arranged at the central shaft of the valve body (2), and is characterized in that an upper shell (12) is arranged at the top position of the vertical central shaft of the valve body (2), a top plate (14) is fixedly connected to the upper end face of the upper shell (12), a control rod (1) is sleeved in an inner cavity of the top plate (14), the control rod (1) penetrates through the central part of the upper shell (12), a valve core (3) is arranged in the inner cavity of the arc-shaped valve sleeve (5), the top center of the valve core (3) is fixedly connected with the bottom end of the control rod (1), a lower shell (4) is arranged at the bottom position of the vertical central shaft of the valve body (2), a T-shaped sealing block (6) is fixedly connected to the lower end face of the lower shell (4), and a, and the upper end surface of the stud (7) is jointed with a steel ball (8), and the top of the steel ball (8) is jointed with the center of the bottom of the valve core (3).
2. The spherical butterfly valve with low flow resistance according to claim 1, wherein the side section of the arc-shaped valve sleeve (5) is a circular structure, the wall thickness between the arc-shaped valve sleeve (5) and the valve body (2) is the same, and the inner cavity of the arc-shaped valve sleeve (5) is rotatably connected with the valve core (3).
3. The spherical butterfly valve with small flow resistance according to claim 1, wherein a sealing ring (13) is clamped at one side of the joint part between the upper shell (12) and the top plate (14) close to the control rod (1), and the inner ring of the sealing ring (13) is jointed with the side surface wall of the control rod (1).
4. The spherical butterfly valve with small flow resistance according to claim 1, wherein the cross section of the valve core (3) in front view is of a concave bi-directional arranged two-spherical structure, the valve core (3) is symmetrically distributed about the central axis of the valve body (2), the cross section of the valve core (3) in side view is of a circular structure, a plurality of through holes (9) penetrating through the side walls of the front side and the rear side of the valve core (3) are formed in the inner cavity of the valve core (3), and the distance between the through holes (9) is equal to the wall thickness of the valve core (3).
5. The spherical butterfly valve with low flow resistance according to claim 1, wherein a sealing strip (11) is bonded to each of the two spherical side walls of the arc valve sleeve (5) and the valve core (3), and the two sealing strips (11) are in transition fit with each other.
6. The spherical butterfly valve with low flow resistance according to claim 1, wherein the circular end surfaces on both sides of the valve body (2) are symmetrically and integrally formed with flanges (10), and the T-shaped sealing block (6) is rotatably connected with the bottom end of the valve core (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921224660.2U CN210265905U (en) | 2019-07-31 | 2019-07-31 | Ball-shaped butterfly valve with small flow resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921224660.2U CN210265905U (en) | 2019-07-31 | 2019-07-31 | Ball-shaped butterfly valve with small flow resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210265905U true CN210265905U (en) | 2020-04-07 |
Family
ID=70015282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921224660.2U Active CN210265905U (en) | 2019-07-31 | 2019-07-31 | Ball-shaped butterfly valve with small flow resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210265905U (en) |
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2019
- 2019-07-31 CN CN201921224660.2U patent/CN210265905U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 325100 Linlong Industrial Zone, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province Patentee after: Huizheng automatic control valve group Co., Ltd Address before: The East Village Industrial Road in Yongjia County Oubei town Wenzhou city Zhejiang province 325000 No. 4 Patentee before: ZHEJIANG HUIZHENG AUTOMATIC CONTROL VALVE Co.,Ltd. |
|
| CP03 | Change of name, title or address |