Double-flange U-shaped butterfly valve

Abstract

The utility model relates to the technical field of double-flange U-shaped butterfly valves, and discloses a double-flange U-shaped butterfly valve which comprises a main valve body, a sealing mechanism is arranged in the main valve body, a rotating mechanism is arranged at the top of the main valve body, the sealing mechanism comprises a sealing assembly and an auxiliary assembly, and the auxiliary assembly is arranged on the inner side of the sealing assembly. The external flange and the valve body main body are installed, the external flange can be clamped into the containing groove formed in the sealing ring, due to the fact that the sealing ring has the soft characteristic, the sealing ring can comprehensively wrap the external flange, then connection is tighter, gaps during installation are reduced, the sealing performance of the device is improved, and the service life of the device is prolonged. And then, external flanges are aligned with the flanges, bolts are inserted into the threaded grooves, installation can be completed, the sealing performance of the device is improved, the situation that resources are wasted due to water leakage is avoided, the butterfly plate is turned over, and flow guiding operation is conducted on the medium flow in the valve body main body.

Description

Technical Field

[0001] The utility model relates to the technical field of double-flange U-shaped butterfly valves, in particular to a double-flange U-shaped butterfly valve. Background Art

[0002] The butterfly valve, also known as the flap valve, is a regulating valve with a simple structure. The butterfly plate of the double flange U-type butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, causing the valve seat to produce elastic deformation and form an elastic force as a seal to seal the butterfly valve.

[0003] According to the description of a double flange U-shaped butterfly valve disclosed in the patent network (authorization announcement number: CN 218118651 U), "The utility model discloses a double flange U-shaped butterfly valve, including a valve body, the upper end of the valve body is fixedly connected to a sealing tube, the upper end of the sealing tube is connected to a transmission box by bolts, the right side of the transmission box is threadedly connected to a runner, the lower end of the transmission box is threadedly connected to an upper valve shaft, the lower end of the upper valve shaft is fitted with a disc plate, and the outer curved surface of the lower end of the upper valve shaft is fixedly connected to an upper sealing sleeve. The utility model blows air into the inflatable sealing ring through an air nozzle installed on the side of the inflatable sealing ring. When blowing air into the inflatable sealing ring, the inflatable sealing ring is deformed due to the internal pressure, and the middle part swells outward and is in close contact with the other sealing surface, thereby playing a sealing role. When the sealing state needs to be released, the high-pressure gas in the sealing ring is discharged through the air nozzle, and the expanded part automatically shrinks into the circular groove due to the elasticity of the rubber and separates from the sealing surface."

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use, the utility model seals the valve body through the inflatable sealing ring. However, in actual use, the inflatable sealing ring may leak due to improper maintenance or abnormal circumstances, which may cause the seal to fail, thereby introducing external gases and substances, causing safety hazards. Therefore, it is necessary to improve a double-flange U-type butterfly valve to solve the above problem. Utility Model Content

[0006] The utility model aims to provide a double flange U-shaped butterfly valve to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: a double flange U-shaped butterfly valve, comprising a valve body, a sealing mechanism is arranged inside the valve body, and a rotating mechanism is arranged on the top of the valve body;

[0008] The sealing mechanism comprises a sealing component and an auxiliary component, wherein the auxiliary component is arranged inside the sealing component.

[0009] Preferably, the sealing assembly includes a flange body, which is fixedly installed on the front and back of the valve body, a threaded groove is provided inside the flange body, a sealing ring groove is provided inside the valve body, a sealing ring is fixedly installed inside the sealing ring groove, and a placement groove is provided inside the sealing ring, thereby improving the sealing performance of the device and avoiding waste of resources due to water leakage.

[0010] Preferably, the flange body, sealing ring groove, sealing ring and placement groove are provided in two groups and are symmetrically distributed on the right side center line of the valve body, so that the sealing ring can fully wrap the external flange, thereby making the connection tighter, reducing the gap during installation, increasing the sealing of the device, and making maintenance and replacement more convenient.

[0011] Preferably, the auxiliary component includes a sealing ring, which is fixedly installed on the top and bottom of the valve body. A rotating rod is provided inside the flange body, and a disc plate is provided inside the valve body. A connecting hole is opened inside the disc plate to seal the rotating rod to prevent water from overflowing from the rotating place.

[0012] Preferably, the rotating rod is fixedly installed inside the connecting hole, and a lower base is fixedly installed at the bottom of the rotating rod, and two groups of sealing rings are provided and symmetrically distributed about the center line of the front face of the valve body, so as to perform sealing operations on both the upper and lower sides.

[0013] Preferably, the rotating mechanism includes a transmission box, which is fixedly installed on the top of the valve body, a worm is rotatably installed inside the transmission box, a rotating wheel is fixedly installed on the left side of the worm, a worm wheel is rotatably installed inside the transmission box, and a rotating rod is fixedly installed on the bottom of the worm wheel to flip the disc plate and perform a diversion operation on the medium flow inside the valve body.

[0014] Preferably, the rotating wheel is meshed with a worm wheel, through holes are provided at positions corresponding to the transmission box and the worm, and the worm passes through the through hole and is fixedly installed with the rotating wheel, so that the disc plate can be flipped.

[0015] Compared with the prior art, the utility model provides a double flange U-shaped butterfly valve, which has the following beneficial effects:

[0016] 1. The double flange U-type butterfly valve, through the sealing mechanism set up, during use, the external flange is installed with the valve body, the external flange will be stuck in the placement groove opened inside the sealing ring, and the sealing ring has the soft characteristics, so that the sealing ring will fully wrap the external flange, thereby making the connection tighter, reducing the gap during installation, increasing the sealing of the device, and making maintenance and replacement more convenient. After that, the external flange is aligned with the flange, and the bolt is inserted into the threaded groove to complete the installation, thereby improving the sealing of the device and avoiding the waste of resources caused by leakage.

[0017] 2. The double flange U-type butterfly valve has a rotating mechanism. During use, the rotating wheel drives the worm to rotate, and the rotation of the worm drives the worm wheel meshing with it to rotate, so that the rotating rod rotates, and the rotation of the rotating rod drives the disc plate to rotate, and then the disc plate flips over to divert the medium flow inside the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the appearance structure of the sealing mechanism of the utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the sealing component of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the auxiliary components of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure of the rotating mechanism of the utility model.

[0024] In the figure: 1. valve body; 2. sealing mechanism; 21. sealing assembly; 211. flange body; 212. threaded groove; 213. sealing ring groove; 214. sealing ring; 215. placement groove; 22. auxiliary assembly; 221. sealing ring; 222. rotating rod; 223. disc plate; 224. connecting hole; 3. rotating mechanism; 31. transmission box; 32. worm; 33. rotating wheel; 34. worm wheel. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] See also Figure 1-4 The utility model provides a technical solution: a double flange U-shaped butterfly valve, comprising a valve body 1, a sealing mechanism 2 is arranged inside the valve body 1, and a rotating mechanism 3 is arranged on the top of the valve body 1;

[0029] The sealing mechanism 2 includes a sealing component 21 and an auxiliary component 22 , wherein the auxiliary component 22 is arranged inside the sealing component 21 .

[0030] Furthermore, the sealing assembly 21 includes a flange body 211, which is fixedly installed on the front and back of the valve body 1. A threaded groove 212 is provided inside the flange body 211. A sealing ring groove 213 is provided inside the valve body 1. A sealing ring 214 is fixedly installed inside the sealing ring groove 213. A placement groove 215 is provided inside the sealing ring 214, thereby improving the sealing performance of the device and avoiding the waste of resources caused by water leakage.

[0031] Furthermore, two groups of flange body 211, sealing ring groove 213, sealing ring 214 and placement groove 215 are provided, and are symmetrically distributed on the right center line of the valve body 1, so that the sealing ring 214 can fully wrap the external flange, thereby making the connection tighter, reducing the gap during installation, increasing the sealing of the device, and making maintenance and replacement more convenient.

[0032] Furthermore, the auxiliary component 22 includes a sealing ring 221, which is fixedly installed on the top and bottom of the valve body 1. A rotating rod 222 is arranged inside the flange body 211, and a disc plate 223 is arranged inside the valve body 1. A connecting hole 224 is opened inside the disc plate 223 to seal the rotating rod 222 to prevent water from overflowing from the rotating place.

[0033] Furthermore, the rotating rod 222 is fixedly installed inside the connecting hole 224, and a lower base is fixedly installed at the bottom of the rotating rod 222, and two groups of sealing rings 221 are provided and symmetrically distributed at the center line of the front of the valve body 1, so as to perform sealing operations on both the upper and lower sides.

[0034] Embodiment two:

[0035] See also Figure 5 In combination with the first embodiment, it is further obtained that the rotating mechanism 3 includes a transmission box 31, the transmission box 31 is fixedly installed on the top of the valve body 1, a worm 32 is rotatably installed inside the transmission box 31, a rotating wheel 33 is fixedly installed on the left side of the worm 32, a worm wheel 34 is rotatably installed inside the transmission box 31, and a rotating rod 222 is fixedly installed at the bottom of the worm wheel 34 to flip the disc plate 223 to divert the medium flow inside the valve body 1.

[0036] Furthermore, the rotating wheel 33 is meshed with the worm wheel 34 , through holes are opened at corresponding positions of the transmission box 31 and the worm 32 , and the worm 32 passes through the through hole and is fixedly installed with the rotating wheel 33 , so that the disc plate 223 is turned over.

[0037] In actual operation, when the device is used, the rotating wheel 33 is rotated, and the rotating wheel 33 drives the worm 32 to rotate. The rotation of the worm 32 drives the worm wheel 34 meshing therewith to rotate, so that the rotating rod 222 rotates, and the rotation of the rotating rod 222 drives the disc plate 223 to rotate, and then the disc plate 223 flips over, and the medium flow inside the valve body 1 is diverted. When the valve body 1 is installed, the external flange is installed with the valve body 1, and the external flange will be stuck in the placement groove 215 opened inside the sealing ring 214. Since the sealing ring 214 has a soft characteristic, the sealing ring 214 will fully wrap the external flange, so that the connection is tighter, the gap during installation is reduced, the sealing of the device is increased, and maintenance and replacement are more convenient. After that, the external flange is aligned with the flange body 211, and the bolt is inserted into the threaded groove 212 to complete the installation, thereby improving the sealing of the device and avoiding the waste of resources caused by leakage.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A double flange U-shaped butterfly valve, comprising a valve body (1), characterized in that: A sealing mechanism (2) is provided inside the valve body (1), and a rotating mechanism (3) is provided on the top of the valve body (1); The sealing mechanism (2) comprises a sealing component (21) and an auxiliary component (22), wherein the auxiliary component (22) is arranged inside the sealing component (21); The sealing assembly (21) comprises a flange body (211), wherein the flange body (211) is fixedly mounted on the front and back of the valve body (1), a threaded groove (212) is provided inside the flange body (211), a sealing ring groove (213) is provided inside the valve body (1), a sealing ring (214) is fixedly mounted inside the sealing ring groove (213), and a placement groove (215) is provided inside the sealing ring (214).

2. A double flange U-shaped butterfly valve according to claim 1, characterized in that: The flange body (211), the sealing ring groove (213), the sealing ring (214) and the placement groove (215) are provided in two groups and are symmetrically distributed on the right side center line of the valve body (1).

3. A double flange U-shaped butterfly valve according to claim 1, characterized in that: The auxiliary component (22) comprises a sealing ring (221), wherein the sealing ring (221) is fixedly mounted on the top and bottom of the valve body (1); a rotating rod (222) is arranged inside the flange body (211); a disc plate (223) is arranged inside the valve body (1); and a connecting hole (224) is opened inside the disc plate (223).

4. A double flange U-shaped butterfly valve according to claim 3, characterized in that: The rotating rod (222) is fixedly mounted inside the connecting hole (224), and a lower base is fixedly mounted at the bottom of the rotating rod (222). Two groups of sealing rings (221) are provided and are symmetrically distributed at the front center line of the valve body (1).

5. A double flange U-shaped butterfly valve according to claim 3, characterized in that: The rotating mechanism (3) comprises a transmission box (31), the transmission box (31) is fixedly mounted on the top of the valve body (1), a worm (32) is rotatably mounted inside the transmission box (31), a rotating wheel (33) is fixedly mounted on the left side of the worm (32), a worm wheel (34) is rotatably mounted inside the transmission box (31), and a rotating rod (222) is fixedly mounted on the bottom of the worm wheel (34).

6. A double flange U-shaped butterfly valve according to claim 5, characterized in that: The rotating wheel (33) is meshed with the worm wheel (34), through holes are provided at corresponding positions of the transmission box (31) and the worm (32), and the worm (32) passes through the through hole and is fixedly installed with the rotating wheel (33).

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