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

Abstract

The invention 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 the liquid flowing resistance and reducing the 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] The present invention relates to the technical field of globe valves, and in particular to an inclined valve disc structure of a low-flow-resistance globe valve. Background Art

[0002] A globe valve, also known as a stop valve, belongs to a forced-sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve disc to force the sealing surface not to leak. When the medium enters the valve from below the valve disc, the resistance that the operating force needs to overcome is the friction between the valve stem and the packing and the thrust generated by the pressure of the medium. The force to close the valve is greater than the force to open the valve.

[0003] The inclined valve disc design makes the direction of the force exerted by the medium on the valve disc in the valve body cavity become a 135° angle, thereby reducing the flow resistance of the medium in the valve. This design reduces the resistance suffered by the fluid when passing through the valve and improves the smooth passing performance of the fluid. The main functions of the inclined valve disc of the low-flow-resistance globe valve include reducing fluid resistance, improving operability, and extending service life.

[0004] The existing inclined valve disc of the globe valve has a large resistance, and the inclined valve disc and the rotating shaft are integrally formed. During use, if it is deformed, the whole needs to be replaced, increasing the later maintenance cost.

[0005] Therefore, it is necessary to provide an inclined valve disc structure of a low-flow-resistance globe valve to solve the above technical problems. Summary of the Invention

[0006] The present invention provides an inclined valve disc structure of a low-flow-resistance globe valve, which solves the problem that the inclined valve disc of the globe valve has a large resistance and needs to be replaced as a whole after deformation during use, increasing the later maintenance cost.

[0007] To solve the above technical problems, the inclined valve disc structure of the low-flow-resistance globe valve provided by the present invention includes: a globe valve housing;

[0008] Mounting bolts, the mounting bolts are installed at the top position on the outer surface of the globe valve housing. The top of the mounting bolts is rotatably connected to a connecting rod through a sealing structure. The bottom end of the connecting rod is fixedly connected to a rotating shaft. Mounting rails are provided on the front and back of the rotating shaft. A plurality of fixing holes are provided on both sides of the rotating shaft near the front and back. Inside both of the mounting rails, mounting buckles are installed through fixing bolts. On the opposite sides of the two mounting buckles, inclined valve discs are installed. A plurality of drag reduction strips are installed on both sides of the inclined valve discs. Mounting openings are provided on the outer surfaces of the two inclined valve discs. Sealing rings are installed inside the mounting openings;

[0009] A filtering component, the filtering component is installed at one end of the globe valve housing, and a connecting pipe is fixedly connected to the other end of the filtering component. Flange plates with mounting holes are fixedly connected to the other end of the connecting pipe and the other end of the globe valve housing respectively.

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

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

[0012] Preferably, a driving component is installed on the top of the sealing plate, and a transmission component is installed at the output end of the driving component.

[0013] Preferably, the driving component includes a protective shell and a driving part. The protective shell is used to install the driving part that provides rotational driving force.

[0014] Preferably, the filtering component includes a filtering frame, a support ring and an intercepting component. The support ring is used to install the intercepting component inside the filtering frame.

[0015] Compared with the related technology, the present invention has the following beneficial effects:

[0016] The present invention provides a low-flow-resistance globe valve with an inclined valve flap structure. In order to reduce the resistance of the inclined valve flap of the globe valve and facilitate the replacement of the inclined valve flap, T-shaped installation rails are provided on the front and back of the rotating shaft. Then, the installation buckles at the adjacent ends of the two inclined valve flaps are snapped into the installation rails, and fixing bolts are passed through the fixing holes to fix the installation buckles inside the installation rails. Installation openings are provided on the outer surfaces of the two inclined valve flaps, and a silicone sealing ring is installed in the installation openings to increase the sealing performance of the contact between the inclined valve flap and the inner surface of the globe valve housing. Drag reduction strips are installed on both sides of the two inclined valve flaps to reduce the resistance of liquid flow, thereby reducing the impact force of the liquid on the inclined valve flap. When the inclined valve flap needs to be replaced, only the sealing ring needs to be removed first, and then the fixing bolts of the corresponding inclined valve flap are loosened, and the installation buckle can be taken out from the installation rail, and the inclined valve flap can be replaced. Through this design, fluid drag reduction strips are used to reduce the liquid flow resistance and the impact of liquid flow on the inclined valve flap, which is beneficial to extending the service life of the inclined valve flap. At the same time, the detachable inclined valve flap is adopted, which is convenient for replacement when the inclined valve flap is damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a preferred embodiment of the low-flow-resistance globe valve with an inclined valve flap structure provided by the present invention;

[0018] Figure 2 This is a schematic structural diagram of the driven component provided by the present invention;

[0019] Figure 3 This is a schematic structural diagram of the intercepting component provided by the present invention;

[0020] Figure 4 Provided by the present invention Figure 2 An enlarged view of the position A shown;

[0021] Figure 5 This is a schematic structural diagram of the driving component provided by the present invention.

[0022] Reference numerals in the figure: 1, globe valve housing; 2, mounting frame; 3, driving assembly; 301, protective housing; 302, driving component; 4, sealing plate; 5, mounting bolt; 6, connecting pipe; 7, mounting hole; 8, flange; 9, filtering assembly; 901, filtering frame; 902, support ring; 903, intercepting component; 10, transmission component; 11, sealing structure; 12, angle sensor; 13, fixed base; 14, sealing ring; 15, inclined valve flap; 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 manners

[0023] The present invention will be further described below in conjunction with the accompanying drawings and implementation manners.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , wherein, Figure 1 This is a schematic structural diagram of a preferred embodiment of the inclined valve flap structure of the low-flow-resistance globe valve provided by the present invention; Figure 2 This is a schematic structural diagram of the driven component provided by the present invention; Figure 3 This is a schematic structural diagram of the intercepting component provided by the present invention; Figure 4 Provided by the present invention Figure 2 An enlarged view of the position A shown; Figure 5 This is a schematic structural diagram of the driving component provided by the present invention.

[0025] An inclined valve flap structure of a low-flow-resistance globe valve includes: a globe valve housing 1;

[0026] The mounting bolt 5 is installed at the top position on the outer surface of the globe valve housing 1. The top of the mounting bolt 5 is rotatably connected to a connecting rod 25 through a sealing structure 11. The bottom end of the connecting rod 25 is fixedly connected to a rotating shaft 24. Mounting rails 18 are provided on both the front and back of the rotating shaft 24. A plurality of fixing holes 23 are provided on both sides of the rotating shaft 24 near the front and back. Mounting buckles 20 are installed inside both of the two mounting rails 18 through fixing bolts 22. Obliquely arranged valve flaps 15 are installed on the opposite sides of the two mounting buckles 20. A plurality of drag reduction strips 21 are installed on both sides of the obliquely arranged valve flaps 15. Mounting openings 19 are provided on the outer surfaces of the two obliquely arranged valve flaps 15. Sealing rings 14 are installed inside the mounting openings 19;

[0027] The filtering assembly 9 is installed at one end of the globe valve housing 1. The other end of the filtering assembly 9 is fixedly connected to a connecting pipe 6. Flange plates 8 with mounting holes 7 are fixedly connected to the other end of the connecting pipe 6 and the other end of the globe valve housing 1 respectively; The connecting rod 25 penetrates through the mounting bolt 5. Through the sealing structure 11, sealing can be achieved without affecting the rotation of the connecting rod 25. The mounting buckle 20 is inserted into the inside of the mounting rail 18 from the bottom of the rotating shaft 24. Threaded holes for threaded connection with the fixing bolt 22 are provided on both sides of the mounting buckle 20. 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 end of the connecting rod 25. An angle sensor 12 is installed at the top of the driven component 16 through a fixed base 13. A contact sensor 26 is installed at the position of the top end of the driven component 16 on the outer surface; The angle sensor 12 can monitor the rotation angle of the driven component 16.

[0029] A mounting frame 2 is installed at the top of the mounting bolt 5. A contact block 17 is installed on the back of the inner wall of the mounting frame 2. A sealing plate 4 is installed at the top of the mounting frame 2; After the contact block 17 contacts the contact sensor 26, it can be judged whether the obliquely arranged valve flap 15 rotates in place to completely seal the globe valve housing 1.

[0030] A driving component 3 is installed at the top of the sealing plate 4. A transmission component 10 is installed at the output end of the driving component 3; The transmission component 10 and the driven component 16 are meshing gears.

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

[0032] The filtering component 9 includes a filtering box 901, a support ring 902, and an interception component 903. The support ring 902 is used to install the interception component 903 inside the filtering box 901; the interception component 903 can be a metal filtering disk.

[0033] The working principle of the present invention is as follows:

[0034] On the front and back of the rotating shaft 24, T-shaped installation rails 18 are provided. Then, the installation buckles 20 at the adjacent ends of the two inclined valve flaps 15 are snapped into the interior of the installation rails 18, and the fixing bolts 22 are passed through the fixing holes 23 to fix the installation buckles 20 inside the installation rails 18. Installation openings 19 are provided on the outer surfaces of the two inclined valve flaps 15, and the silicone rubber sealing rings 14 are installed in the installation openings 19 to increase the sealing performance of the contact between the inclined valve flaps 15 and the inner surface of the stop valve housing 1. Resistance reducing strips 21 are installed on both sides of the two inclined valve flaps 15 to reduce the resistance of liquid flow, thereby reducing the impact force of the liquid on the inclined valve flaps 15. When the inclined valve flaps 15 need to be replaced, only the sealing ring 14 needs to be removed first, and then the fixing bolts 22 of the corresponding inclined valve flaps 15 are loosened, and the installation buckles 20 can be taken out from the interior of the installation rails 18, and the inclined valve flaps 15 can be replaced.

[0035] In order to reduce the resistance of the inclined valve flaps of the stop valve and facilitate the replacement of the inclined valve flaps 15, T-shaped installation rails 18 are provided on the front and back of the rotating shaft 24. Then, the installation buckles 20 at the adjacent ends of the two inclined valve flaps 15 are snapped into the interior of the installation rails 18, and the fixing bolts 22 are passed through the fixing holes 23 to fix the installation buckles 20 inside the installation rails 18. Installation openings 19 are provided on the outer surfaces of the two inclined valve flaps 15, and the silicone rubber sealing rings 14 are installed in the installation openings 19 to increase the sealing performance of the contact between the inclined valve flaps 15 and the inner surface of the stop valve housing 1. Resistance reducing strips 21 are installed on both sides of the two inclined valve flaps 15 to reduce the resistance of liquid flow, thereby reducing the impact force of the liquid on the inclined valve flaps 15. When the inclined valve flaps 15 need to be replaced, only the sealing ring 14 needs to be removed first, and then the fixing bolts 22 of the corresponding inclined valve flaps 15 are loosened, and the installation buckles 20 can be taken out from the interior of the installation rails 18, and the inclined valve flaps 15 can be replaced. By adopting the fluid-like resistance reducing strips 21, the resistance of liquid flow is reduced, and the impact of liquid flow on the inclined valve flaps 15 is reduced, which is beneficial to extending the service life of the inclined valve flaps 15. At the same time, the detachable inclined valve flaps 15 are adopted, which is convenient for replacing the inclined valve flaps 15 when they are damaged.

[0036] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A low flow resistance stop valve inclined disc structure, characterized in that: include: Stop valve housing (1); A mounting bolt (5), the mounting bolt (5) being mounted on the outer surface of the stop valve housing (1) at a top position, the top of the mounting bolt (5) being rotatably connected to a connecting rod (25) through a sealing structure (11), the bottom end of the connecting rod (25) being fixedly connected to a rotating shaft (24), the front and back sides of the rotating shaft (24) being provided with mounting rails (18), the two sides of the rotating shaft (24) being provided with a plurality of fixing holes (23) near the front and back sides, the insides of the two mounting rails (18) being provided with mounting buckles (20) through fixing bolts (22), the opposite sides of the two mounting buckles (20) being provided with inclined valve flaps (15), the two sides of the inclined valve flaps (15) being provided with a plurality of drag reduction strips (21), the outer surfaces of the two inclined valve flaps (15) being provided with mounting openings (19), the insides of the mounting openings (19) being provided with sealing rings (14); A filter assembly (9), the filter assembly (9) being mounted on one end of a stop valve housing (1), the other end of the filter assembly (9) being fixedly connected to a connecting pipe (6), the other end of the connecting pipe (6) and the other end of the stop valve housing (1) being fixedly connected to a flange (8) having a mounting hole (7).

2. The low flow resistance stop valve inclined disc structure according to claim 1 is 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), and a contact sensor (26) is installed at the top of the driven component (16) at a position on the outer surface.

3. The low flow resistance stop valve inclined disc structure according to claim 1 is characterized in that: A mounting frame (2) is installed on the top of the mounting bolt (5), a contact block (17) is installed on the back of the inner wall of the mounting frame (2), and a sealing plate (4) is installed on the top of the mounting frame (2).

4. The low flow resistance stop valve inclined disc structure according to claim 3 is characterized in that: A driving component (3) is installed on the top of the sealing plate (4), and a transmission component (10) is installed on the output end of the driving component (3).

5. The low flow resistance stop valve inclined disc structure according to claim 4 is characterized in that: The driving assembly (3) comprises a protective shell (301) and a driving component (302), wherein the protective shell (301) is used to install the driving component (302) that provides a rotational driving force.

6. The low flow resistance stop valve inclined disc structure according to claim 1 is characterized in that: The filter assembly (9) comprises 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).

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