Inclined valve clack structure of low-flow-resistance stop valve

Abstract

The utility model provides an inclined valve clack structure of a low-flow-resistance stop valve. The inclined valve clack structure comprises a stop valve shell and a mounting bolt, the top of the mounting bolt is rotatably connected with a connecting rod through a sealing structure, the bottom end of the connecting rod is fixedly connected with a rotating shaft, mounting rails are arranged on the front face and the back face of the rotating shaft, and a plurality of fixing holes are formed in the positions, close to the front face and the back face, of the two sides of the rotating shaft. Installation buckles are installed in the two installation rails through fixing bolts, and inclined valve clacks are installed on the faces, opposite to each other, of the two installation buckles. According to the inclined valve clack structure of the low-flow-resistance stop valve, through the design, the fluid-shaped resistance reducing strip is adopted for reducing liquid flowing resistance and reducing impact of liquid flowing on the inclined valve clack, the service life of the inclined valve clack is prolonged, meanwhile, the detachable inclined valve clack is adopted, and replacement is convenient when the inclined valve clack is damaged.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, and in particular to a low flow resistance gate valve with an oblique valve disc structure. Background Technology

[0002] A gate valve, also known as a stop valve, is a type of forced-seal valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to ensure a leak-proof seal. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the frictional force of the valve stem and packing, plus the thrust generated by the pressure of the medium. The force required to close the valve is greater than the force required to open it.

[0003] The angled valve disc design causes the force exerted by the medium on the valve disc within the valve body cavity to change to a 135° angle, thereby reducing the flow resistance of the medium in the valve. This design reduces the resistance encountered by the fluid when passing through the valve, improving the smooth flow of the fluid. The main functions of the angled valve disc in low flow resistance stop valves include reducing fluid resistance, improving operability, and extending service life.

[0004] The existing gate valve has a large resistance due to its slanted valve disc, and the slanted valve disc and the rotating shaft are molded as one piece. If it deforms during use, the entire valve needs to be replaced, which increases the later maintenance cost.

[0005] Therefore, it is necessary to provide a low-flow-resistance shut-off valve with an obliquely positioned valve disc to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a low-flow-resistance shut-off valve with an oblique valve disc structure, which solves the problem that the oblique valve disc of the shut-off valve has high resistance and needs to be completely replaced after deformation during use, which increases the later maintenance cost.

[0007] To solve the above technical problems, the low flow resistance shut-off valve with oblique valve disc structure provided by this utility model includes: a shut-off valve body;

[0008] The mounting bolt is installed on the top of the outer surface of the shut-off valve housing. The top of the mounting bolt is rotatably connected to a connecting rod via a sealing structure. The bottom end of the connecting rod is fixedly connected to a rotating shaft. The rotating shaft has mounting rails on both its front and back sides. Multiple fixing holes are provided on both sides of the rotating shaft near the front and back sides. Mounting buckles are installed inside the two mounting rails via fixing bolts. An inclined valve disc is installed on the opposite side of the two mounting buckles. Multiple drag-reducing strips are installed on both sides of the inclined valve disc. The outer surface of the two inclined valve discs has an installation opening. A sealing ring is installed inside the installation opening.

[0009] A filter assembly is installed at one end of the shut-off valve housing, and a connecting pipe is fixedly connected to the other end of the filter assembly. Both the other end of the connecting pipe and the other end of the shut-off valve housing are fixedly connected to a flange with mounting holes.

[0010] Preferably, a driven component is installed at the top of the connecting rod, an angle sensor is installed at the top of the driven component via a fixed base, and a contact sensor is installed at the position of the top of the driven component on its outer surface.

[0011] Preferably, a mounting frame is mounted on the top of the mounting bolt, a contact block is mounted on the back of the inner wall of the mounting frame, and a sealing plate is mounted on the top of the mounting frame.

[0012] Preferably, a drive assembly is mounted on the top of the sealing plate, and a transmission component is mounted on the output end of the drive assembly.

[0013] Preferably, the drive assembly includes a protective housing and a drive component, the protective housing being used to mount the drive component that provides rotational driving force.

[0014] Preferably, the filter assembly includes a filter frame, a support ring, and an interceptor component, wherein the support ring is used to mount the interceptor component inside the filter frame.

[0015] Compared with related technologies, this utility model has the following beneficial effects:

[0016] This utility model provides a low-flow-resistance shut-off valve with an angled valve disc structure. To reduce the resistance of the angled valve disc and facilitate its replacement, T-shaped mounting rails are provided on both the front and back of the rotating shaft. The mounting clips at adjacent ends of the two angled valve discs are then inserted into the mounting rails, and fixing bolts are passed through the fixing holes to secure the mounting clips inside the mounting rails. Mounting openings are provided on the outer surfaces of both angled valve discs, and silicone sealing rings are installed in these openings to increase the sealing between the angled valve discs and the inner surface of the shut-off valve housing. Both sides are equipped with drag-reducing strips to reduce the resistance to liquid flow, thereby reducing the impact force of the liquid on the inclined valve disc. When the inclined valve disc needs to be replaced, simply remove the sealing ring first, then loosen the fixing bolts of the corresponding inclined valve disc, and the mounting clip can be removed from the inside of the mounting rail to replace the inclined valve disc. This design uses fluid-like drag-reducing strips to reduce liquid flow resistance and reduce the impact of liquid flow on the inclined valve disc, which helps to extend the service life of the inclined valve disc. At the same time, the use of a detachable inclined valve disc makes it convenient to replace the inclined valve disc when it is damaged. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the inclined valve disc structure of the low flow resistance shut-off valve provided by this utility model;

[0018] Figure 2 A schematic diagram of the driven component is provided for this utility model;

[0019] Figure 3 A structural schematic diagram of the interception component is provided for this utility model;

[0020] Figure 4 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0021] Figure 5 A schematic diagram of the drive component is provided for this utility model.

[0022] The following are the labeling elements in the diagram: 1. Gate valve body; 2. Mounting frame; 3. Drive assembly; 301. Protective shell; 302. Drive component; 4. Sealing plate; 5. Mounting bolt; 6. Connecting pipe; 7. Mounting hole; 8. Flange; 9. Filter assembly; 901. Filter frame; 902. Support ring; 903. Interception component; 10. Transmission component; 11. Sealing structure; 12. Angle sensor; 13. Fixed base; 14. Sealing ring; 15. Inclined valve disc; 16. Driven component; 17. Contact block; 18. Mounting rail; 19. Mounting port; 20. Mounting buckle; 21. Drag reduction strip; 22. Fixing bolt; 23. Fixing hole; 24. Rotating shaft; 25. Connecting rod; 26. Contact sensor. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the inclined valve disc structure of the low flow resistance shut-off valve provided by this utility model; Figure 2 A schematic diagram of the driven component is provided for this utility model; Figure 3 A structural schematic diagram of the interception component is provided for this utility model; Figure 4 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 5 A schematic diagram of the drive component is provided for this utility model.

[0025] A low-flow-resistance shut-off valve with an oblique valve disc structure includes: a shut-off valve body 1;

[0026] Mounting bolt 5 is installed on the top of the outer surface of the shut-off valve housing 1. The top of mounting bolt 5 is rotatably connected to connecting rod 25 through sealing structure 11. The bottom end of connecting rod 25 is fixedly connected to rotating shaft 24. Mounting rails 18 are provided on both the front and back of rotating shaft 24. Multiple fixing holes 23 are provided on both sides of rotating shaft 24 near the front and back. Mounting buckles 20 are installed inside the two mounting rails 18 through fixing bolts 22. An inclined valve disc 15 is installed on the opposite side of the two mounting buckles 20. Multiple drag-reducing strips 21 are installed on both sides of the inclined valve disc 15. Mounting ports 19 are provided on the outer surface of the two inclined valve discs 15. Sealing rings 14 are installed inside the mounting ports 19.

[0027] The filter assembly 9 is installed at one end of the gate valve housing 1, and the other end of the filter assembly 9 is fixedly connected to the connecting pipe 6. Both the other end of the connecting pipe 6 and the other end of the gate valve housing 1 are fixedly connected to a flange 8 with a mounting hole 7. The connecting rod 25 passes through the mounting bolt 5. The sealing structure 11 can achieve a seal without affecting the rotation of the connecting rod 25. The mounting buckle 20 is snapped into the interior of the mounting rail 18 from the bottom of the rotating shaft 24. Both sides of the mounting buckle 20 are provided with threaded holes that are threaded to the fixing bolt 22. The fixing bolt 22 passes through the fixing hole 23 to fix the mounting buckle 20 inside the mounting rail 18.

[0028] A driven component 16 is installed at the top of the connecting rod 25. An angle sensor 12 is installed on the top of the driven component 16 via a fixed base 13. A contact sensor 26 is installed on the top of the driven component 16 at the position on its outer surface. The angle sensor 12 can monitor the rotation angle of the driven component 16.

[0029] Mounting bolt 5 is mounted on top of mounting frame 2, and mounting block 17 is mounted on the back of inner wall of mounting frame 2. Mounting plate 4 is mounted on top of mounting frame 2. After contact block 17 and contact sensor 26 come into contact, it can be determined whether the inclined valve disc 15 has rotated into place to completely seal the shut-off valve housing 1.

[0030] A drive assembly 3 is mounted on the top of the sealing plate 4, and a transmission component 10 is mounted on the output end of the drive assembly 3; the transmission component 10 and the driven component 16 are meshing gears.

[0031] The drive assembly 3 includes a protective shell 301 and a drive component 302. The protective shell 301 is used to install the drive component 302, which provides rotational driving force. The drive component 302 can be a motor and has a self-locking function, which can achieve self-locking when rotation is not required.

[0032] The filter assembly 9 includes a filter frame 901, a support ring 902, and an interception component 903. The support ring 902 is used to install the interception component 903 inside the filter frame 901. The interception component 903 may be a metal filter disc.

[0033] The working principle of this utility model is as follows:

[0034] T-shaped mounting rails 18 are provided on both the front and back of the rotating shaft 24. The mounting buckles 20 at the adjacent ends of the two inclined valve discs 15 are then inserted into the mounting rails 18, and the fixing bolts 22 are passed through the fixing holes 23 to fix the mounting buckles 20 inside the mounting rails 18. Mounting ports 19 are provided on the outer surfaces of the two inclined valve discs 15, and silicone sealing rings 14 are installed in the mounting ports 19 to increase the sealing between the inclined valve discs 15 and the inner surface of the shut-off valve housing 1. Drag-reducing strips 21 are installed on both sides of the two inclined valve discs 15 to reduce the resistance to liquid flow, thereby reducing the impact force of the liquid on the inclined valve discs 15. When it is necessary to replace the inclined valve discs 15, simply remove the sealing rings 14 first, then loosen the fixing bolts 22 of the corresponding inclined valve discs 15, and the mounting buckles 20 can be removed from the inside of the mounting rails 18 to replace the inclined valve discs 15.

[0035] To reduce the resistance of the inclined valve discs of the shut-off valve and facilitate the replacement of the inclined valve discs 15, this invention provides T-shaped mounting rails 18 on both the front and back of the rotating shaft 24. The mounting clips 20 at adjacent ends of the two inclined valve discs 15 are then inserted into the mounting rails 18, and fixing bolts 22 are passed through fixing holes 23 to fix the mounting clips 20 inside the mounting rails 18. Mounting ports 19 are provided on the outer surfaces of both inclined valve discs 15, and silicone sealing rings 14 are installed in the mounting ports 19 to increase the sealing between the inclined valve discs 15 and the inner surface of the shut-off valve housing 1. T-shaped mounting rails 18 are installed on both sides of the two inclined valve discs 15. The design incorporates a drag-reducing strip 21 to lower the resistance to liquid flow, thereby reducing the impact of the liquid on the inclined valve disc 15. When the inclined valve disc 15 needs to be replaced, simply remove the sealing ring 14, then loosen the fixing bolt 22 corresponding to the inclined valve disc 15, and the mounting clip 20 can be removed from the inside of the mounting rail 18, allowing the inclined valve disc 15 to be replaced. This design, using a fluid-like drag-reducing strip 21 to lower the resistance to liquid flow and reduce the impact of liquid flow on the inclined valve disc 15, helps extend the service life of the inclined valve disc 15. Furthermore, the use of a detachable inclined valve disc 15 facilitates replacement when it is damaged.

[0036] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A low-flow-resistance shut-off valve with an obliquely positioned valve disc structure, characterized in that, include: Gate valve housing (1); Mounting bolt (5) is installed on the top of the outer surface of the shut-off valve housing (1). The top of the mounting bolt (5) is rotatably connected to the connecting rod (25) through the sealing structure (11). The bottom end of the connecting rod (25) is fixedly connected to the rotating shaft (24). Mounting rails (18) are provided on both the front and back sides of the rotating shaft (24). Multiple fixing holes (23) are provided on both sides of the rotating shaft (24) near the front and back sides. Mounting buckles (20) are installed inside the two mounting rails (18) through fixing bolts (22). An inclined valve disc (15) is installed on the opposite side of the two mounting buckles (20). Multiple drag-reducing strips (21) are installed on both sides of the inclined valve disc (15). An installation port (19) is provided on the outer surface of the two inclined valve discs (15). A sealing ring (14) is installed inside the installation port (19). A filter assembly (9) is installed at one end of the shut-off valve housing (1). A connecting pipe (6) is fixedly connected to the other end of the filter assembly (9). A flange (8) with a mounting hole (7) is fixedly connected to the other end of the connecting pipe (6) and the other end of the shut-off valve housing (1).

2. The low flow resistance shut-off valve with oblique valve disc structure according to claim 1, characterized in that, A driven component (16) is installed at the top of the connecting rod (25). An angle sensor (12) is installed at the top of the driven component (16) via a fixed base (13). A contact sensor (26) is installed at the position of the top of the driven component (16) on its outer surface.

3. The low flow resistance shut-off valve with oblique valve disc structure according to claim 1, characterized in that, The mounting bolt (5) is fitted with a mounting frame (2) on its top, and a contact block (17) is fitted on the back of the inner wall of the mounting frame (2). A sealing plate (4) is fitted on the top of the mounting frame (2).

4. The low flow resistance shut-off valve with oblique valve disc structure according to claim 3, characterized in that, A drive assembly (3) is mounted on the top of the sealing plate (4), and a transmission component (10) is mounted on the output end of the drive assembly (3).

5. The low flow resistance shut-off valve with oblique valve disc structure according to claim 4, characterized in that, The drive assembly (3) includes a protective shell (301) and a drive component (302), wherein the protective shell (301) is used to mount the drive component (302) that provides rotational driving force.

6. The low flow resistance shut-off valve with oblique valve disc structure according to claim 1, characterized in that, The filter assembly (9) includes a filter frame (901), a support ring (902), and an interceptor (903), wherein the support ring (902) is used to install the interceptor (903) inside the filter frame (901).

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