CN216789282U

CN216789282U - Novel double-open gate valve

Info

Publication number: CN216789282U
Application number: CN202220374715.3U
Authority: CN
Inventors: 康治红; 吴娇娇
Original assignee: Gongnai Valve Co ltd
Current assignee: Gongnai Valve Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-06-21
Anticipated expiration: 2032-02-23

Abstract

The utility model relates to a novel double-opening gate valve, which comprises a valve body, a valve rod, a gate plate and a valve cover, wherein the valve cover is arranged above the valve body, the lower end of the valve rod penetrates through the valve cover and is rotationally connected with the gate plate, a nut seat is fixedly connected on the valve cover, a thread section on the valve rod is matched on the nut seat in a threaded manner, the valve body is connected with a control shell through a fixed support, a first bevel gear, a second bevel gear, a fixed shaft and a prism rod are arranged in the control shell, a motor is arranged at the top of the control shell and is connected with the fixed shaft, the prism rod is connected to the lower end of the fixed shaft, a jack is formed in the valve rod, the lower end of the prism rod is inserted in the jack, the first bevel gear is fixedly connected to the fixed shaft, a hand wheel is arranged on the side surface of the control shell, a rotating shaft is connected to the hand wheel, the second bevel gear is connected to the rotating shaft, the second bevel gear is meshed with the first bevel gear, and the automatic bevel gear has two control structures, namely a manual control structure and an automatic control structure, and is reasonable and reliable in structural arrangement.

Description

Novel double-open gate valve

Technical Field

The utility model relates to the technical field of valves, in particular to a novel double-opening gate valve.

Background

The valve is a device that can control the flow rate of a medium (liquid, gas, powder) in a pipe or equipment by flowing or stopping the medium. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valve is a control part in a pipeline fluid conveying system, is used for changing the section of a passage and the flowing direction of a medium, and has the functions of diversion, cut-off, throttling, non-return, flow splitting, overflow pressure relief and the like. The existing gate valve is generally controlled manually or automatically, manual and automatic control structures are less adopted in one gate valve at the same time, and the manual and automatic control structures are partially adopted and are not reasonable.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel double-opening gate valve which has two control structures of manual operation and automatic operation, is reasonable and reliable in structural arrangement, and solves the problems existing in the use process in the prior art.

The technical scheme of the utility model is realized as follows: a novel double-opening gate valve comprises a valve body, a valve rod, a gate plate and a valve cover, wherein a flow channel is arranged in the valve body, an upper cavity communicated with the valve body is arranged above the middle part of the flow channel, a valve seat is arranged on the flow channel, the gate plate is matched with the valve seat to form a seal in the middle part of the flow channel, the valve cover is arranged above the valve body and is used for forming a seal on the upper side of the upper cavity, the lower end of the valve rod penetrates through the valve cover and is rotatably connected with the gate plate, a nut seat is fixedly connected on the valve cover, the upper end of the valve rod comprises a thread section, the thread section is in threaded fit on the nut seat, a fixed support is arranged above the valve body, a control shell is fixedly connected on the fixed support, a first bevel gear, a second bevel gear, a fixed shaft and a multi-prism-shaped rod are arranged in the control shell, a motor is arranged at the top of the control shell, an output shaft of the motor is connected with the fixed shaft through a coupler, the prismatic pole is connected on the lower extreme of fixed axle, it has the jack that is the polygon prism shape to open on the valve rod, the lower extreme of prismatic pole is inserted and is established in the jack, first bevel gear fixed connection is on the fixed axle, be equipped with the hand wheel on the side of control casing, be connected with the pivot on the hand wheel, the pivot pierces into in the control casing, the second bevel gear is connected in the pivot, the second bevel gear meshes with first bevel gear mutually.

Preferably, the first bevel gear is connected with a positioning shaft, the control shell is provided with a bearing, and the positioning shaft is rotatably arranged on the bearing.

Preferably, the valve body is provided with a groove at the lower side of the flashboard, the groove is provided with a first sealing block, the groove is provided with an upward convex top block, the lower side of the flashboard is provided with a second sealing block, and the second sealing block corresponds to the top block.

Preferably, a wedge-shaped sealing gasket, a backing ring and four open rings are arranged between the valve cover and the valve body, the backing ring is pressed on the wedge-shaped sealing gasket, and the four open rings are clamped on the backing ring.

Preferably, a bearing plate is arranged on the lower side of the valve cover, and a notch is formed in the middle of the valve cover.

Preferably, the fixed shaft and the prism rod are of an integrally formed structure.

Preferably, the valve body, the valve cover and the gate plate are all cast by WCB carbon steel.

In conclusion, the utility model has the beneficial effects that:

1. the utility model has two control structures of manual and automatic, the automatic control structure is: the motor drives the fixed axle and rotates to drive the prism pole and rotate, the prism pole can drive the valve rod and rotate when rotating, the valve rod carries out screw-thread fit through screw thread section and nut seat, so the valve rod can reciprocate when carrying out the pivoted, thereby the drive flashboard is opened and close, and wherein prism pole can drive the valve rod and rotate, but can not restrict the valve rod and reciprocate. And the manual control structure is as follows: the hand wheel drives the second bevel gear to rotate through the rotating shaft, the second bevel gear drives the fixed shaft to rotate through the first bevel gear, so that the prismatic rod drives the valve rod to rotate, the valve rod is driven to move up and down, and the flashboard is driven to open and close.

2. The first bevel gear is rotatably arranged on the bearing through the positioning shaft, so that the rotational stability of the first bevel gear is improved.

3. The valve body is provided with a groove at the lower side of the flashboard, the groove is provided with a first sealing block, the flashboard contacts with the first sealing block when falling, the groove is provided with an upward convex top block, the lower side of the flashboard is provided with a second sealing block, the second sealing block contacts with the top block when falling, and the structure can improve the sealing degree of the flashboard when closing.

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 description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a valve body; 2. a valve stem; 3. a shutter plate; 4. a valve cover; 5. a flow channel; 6. an upper chamber; 7. a valve seat; 8. a nut seat; 9. a threaded segment; 10. fixing a bracket; 11. a control housing; 12. a first bevel gear; 13. a second bevel gear; 14. a fixed shaft; 15. a prismatic rod; 16. a jack; 17. a hand wheel; 18. a rotating shaft; 19. positioning the shaft; 20. a bearing; 21. a groove; 22. a first seal block; 23. a top block; 24. a second seal block; 25. a wedge-shaped sealing gasket; 26. a backing ring; 27. opening a ring; 28. a pressure bearing plate; 29. grooving; 30. a motor; 31. a coupler is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in figure 1, the utility model discloses a novel double-opening gate valve which comprises a valve body 1, a valve rod 2, a gate plate 3 and a valve cover 4, wherein a flow passage 5 is arranged in the valve body 1, an upper cavity 6 communicated with the flow passage 5 is arranged above the middle part of the valve body 1, the upper cavity 6 is used for accommodating the gate plate 3, a valve seat 7 is arranged on the flow passage 5, the gate plate 3 is matched with the valve seat 7 to seal the middle part of the flow passage 5, the valve cover 4 is arranged above the valve body 1 to seal the upper side of the upper cavity 6, the lower end of the valve rod 2 penetrates through the valve cover 4 and is rotatably connected with the gate plate 3, a nut seat 8 is fixedly connected onto the valve cover 4, the upper end of the valve rod 2 comprises a threaded section 9, the threaded section 9 is in threaded fit onto the nut seat 8, a fixing support 10 is arranged above the valve body 1, a control shell 11 is fixedly connected onto the fixing support 10, and a first bevel gear 12 and a second bevel gear 12 are arranged in the control shell 11, A second bevel gear 13, a fixed shaft 14, and a prism rod 15 having a polygonal prism shape, the top of the control housing 11 is provided with a motor 30, the output shaft of the motor 30 is connected with the fixed shaft 14 through a coupling 31, the prism rod 15 is connected with the lower end of the fixed shaft 14, the valve rod 2 is provided with a polygonal prism-shaped jack 16, the lower end of the prism rod 15 is inserted into the jack 16, it should be noted that the prism rod 15 is inserted into the jack 16 of the valve rod 2, the prism rod 15 can drive the valve rod 2 to rotate, but without limiting the up and down movement of the valve stem 2, said first bevel gear 12 is fixedly connected to a fixed shaft 14, a hand wheel 17 is arranged on the side surface of the control shell 11, a rotating shaft 18 is connected on the hand wheel 17, the rotating shaft 18 penetrates into the control housing 11, the second bevel gear 13 is connected to the rotating shaft 18, and the second bevel gear 13 is engaged with the first bevel gear 12.

The utility model has two control structures of manual and automatic, the working mode of the automatic control structure is as follows: the motor 30 drives the fixed shaft 14 to rotate, so that the prism rod 15 is driven to rotate, the prism rod 15 can drive the valve rod 2 to rotate when rotating, the valve rod 2 is in threaded fit with the nut seat 8 through the threaded section 9, the valve rod 2 can move up and down when rotating, and the gate plate 3 is driven to open and close. The working mode of the manual control structure is as follows: the hand wheel 17 drives the second bevel gear 13 to rotate through the rotating shaft 18, the second bevel gear 13 drives the fixed shaft 14 to rotate through the first bevel gear 12, so that the valve rod 2 is driven to rotate through the prism rod 15, the valve rod 2 is driven to move up and down, and the flashboard 3 is driven to be opened and closed.

In order to ensure the stability of the first bevel gear 12 during rotation and thus to keep the prismatic rod 15 and the valve rod 2 rotating coaxially, a positioning shaft 19 is connected to the first bevel gear 12, a bearing 20 is arranged on the control housing 11, and the positioning shaft 19 is rotatably arranged on the bearing 20.

In the utility model, the valve body 1 is provided with the groove 21 at the lower side of the flashboard 3, the groove 21 is provided with the first sealing block 22, the flashboard 3 can contact with the first sealing block 22 when falling, the groove 21 is provided with the upward convex top block 23, the lower side of the flashboard 3 is provided with the second sealing block 24, the second sealing block 24 corresponds to the top block 23, and the second sealing block 24 contacts with the top block 23 when the flashboard 3 falls, so that the sealing degree of the flashboard 3 when being closed can be improved.

In the utility model, a wedge-shaped sealing gasket 25, a backing ring 26 and a four-open ring 27 are arranged between the valve cover 4 and the valve body 1, the backing ring 26 presses on the wedge-shaped sealing gasket 25, the four-open ring 27 is clamped on the backing ring 26, when the flashboard 3 moves upwards, the upward pressure of a medium acts on the valve cover 4, and the sealing specific pressure between the valve cover 4 and the wedge-shaped sealing gasket 25 as well as between the valve body 1 and the wedge-shaped sealing gasket 25 gradually increases along with the increase of the pressure, thereby achieving the self-sealing effect.

The pressure bearing plate 28 is arranged on the lower side of the valve cover 4, the slot 29 is formed in the middle of the valve cover 4, and the structure can uniformly apply upward pressure of a medium to the edge of the lower side of the valve cover 4, so that the wedge-shaped sealing gasket 25 has a good self-sealing effect.

In the utility model, the fixed shaft 14 and the prismatic rod 15 are of an integrally formed structure, so that the stability of the structure is improved.

In the utility model, the valve body 1, the valve cover 4 and the gate plate 3 are all cast by WCB carbon steel, so that the valve has high structural strength and long service life.

Meanwhile, the utility model also points out terms such as: the terms "front," "back," "vertical," "horizontal," and the like, as used herein, are intended to refer to an orientation or positional relationship as shown in the drawings for convenience in describing the utility model and in order to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the utility model.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a novel two gate valves that open, includes valve body (1), valve rod (2), flashboard (3) and valve gap (4), its characterized in that: be equipped with runner (5) in valve body (1), valve body (1) is equipped with rather than communicating epicoele (6) above runner (5) middle part, be equipped with disk seat (7) on runner (5), flashboard (3) cooperate with disk seat (7) and form sealedly to runner (5) middle part, valve gap (4) are installed and are used for forming sealedly to epicoele (6) upside in valve body (1) top, the lower extreme of valve rod (2) passes valve gap (4) and is rotated with flashboard (3) and be connected, fixedly connected with nut seat (8) on valve gap (4), the upper end of valve rod (2) is including screw thread section (9), screw thread section (9) screw-thread fit is on nut seat (8), valve body (1) top is equipped with fixed bolster (10), fixedly connected with control housing (11) on fixed bolster (10), be equipped with first bevel gear (12) in the control housing (11), A second bevel gear (13), a fixed shaft (14) and a polygonal prism-shaped prism rod (15), the top of the control shell (11) is provided with a motor (30), an output shaft of the motor (30) is connected with the fixed shaft (14) through a coupling (31), the prismatic rod (15) is connected with the lower end of the fixed shaft (14), the valve rod (2) is provided with a polygonal prism-shaped jack (16), the lower end of the prismatic rod (15) is inserted into the jack (16), the first bevel gear (12) is fixedly connected on the fixed shaft (14), a hand wheel (17) is arranged on the side surface of the control shell (11), a rotating shaft (18) is connected on the hand wheel (17), the rotating shaft (18) penetrates into the control shell (11), the second bevel gear (13) is connected to the rotating shaft (18), and the second bevel gear (13) is meshed with the first bevel gear (12).

2. The novel double open gate valve of claim 1 wherein: the first bevel gear (12) is connected with a positioning shaft (19), the control shell (11) is provided with a bearing (20), and the positioning shaft (19) is rotatably arranged on the bearing (20).

3. The novel double open gate valve of claim 1, wherein: the utility model discloses a valve body, including valve body (1), recess (21) are seted up on the downside position of flashboard (3), be equipped with first sealed piece (22) on recess (21), be equipped with bellied kicking block (23) upwards on recess (21), be equipped with second sealed piece (24) on the downside of flashboard (3), second sealed piece (24) are corresponding with kicking block (23).

4. The novel double open gate valve of claim 1, wherein: be equipped with wedge sealed pad (25), backing ring (26) and four ring opening (27) between valve gap (4) and valve body (1), backing ring (26) are pressed on wedge sealed pad (25), four ring opening (27) card are on backing ring (26).

5. The novel double open gate valve of claim 4, wherein: the lower side of the valve cover (4) is provided with a bearing plate (28), and the middle part of the valve cover (4) is provided with a slot (29).

6. The novel double open gate valve of claim 1, wherein: the fixed shaft (14) and the prism rod (15) are of an integrated structure.

7. The novel double open gate valve of claim 1, wherein: the valve body (1), the valve cover (4) and the flashboard (3) are all cast by WCB carbon steel.