Star-shaped distributing butterfly valve

Abstract

The utility model provides a star-shaped distributing butterfly valve, which is mainly characterized in that a valve core is designed into a plurality of valve plates, and the valve plates are uniformly and symmetrically distributed on a valve plate shaft in groups. In a plurality of valve plates of the star-shaped material distribution butterfly valve, the diameter of one group of valve plates is slightly larger than that of the other groups of valve plates, and the diameters of the other groups of valve plates except the group of valve plates with the larger diameter are designed to be smaller, so that certain gaps are formed between the valve plates and a valve body. Effective sealing can be formed between the valve plate and the valve body sealing ring in a group with larger diameter at the closing position, so that the pressure-bearing requirement is met; and large gaps are reserved between the other groups of valve plates and the sealing ring of the valve body, so that the smooth rotation of the valve core can be ensured. The valve body of the star-shaped distributing butterfly valve is designed to be of an up-down half split structure, so that the sealing ring can be quickly disassembled and assembled, and the star-shaped distributing butterfly valve is more convenient and quicker to clean and maintain. The star-shaped distributing butterfly valve is simple and novel in structure, has no cleaning and sterilizing blind areas, better meets the sanitary or sterile use requirements, and is mainly applied to the fields of food, medicine, chemical engineering and the like.

Description

Technical Field

[0001] The utility model relates to a valve, in particular to a powder star-shaped material distribution butterfly valve in the production of food, medicine and chemical industry. Background Art

[0002] In the quantitative loading and unloading application scenario of powder, the powder is generally discharged by gravity and then measured by the dosing valve to achieve the purpose of quantitative loading and unloading. The valve core of the traditional dosing valve is designed with multiple valve plates, and a certain gap is reserved between the valve plate and the valve body. There is no sealing design between the valve plate and the valve body, so it cannot be used in scenarios where there is a pressure requirement in the closed position of the valve.

[0003] The valve core of a traditional butterfly valve is usually designed with two butterfly plates, and a rubber sealing ring is designed between the butterfly plate and the valve body. When the valve plate and the sealing ring fit together, the valve cavity can be divided into two independent areas, which can be used in scenarios where there is a pressure requirement in the closed position of the valve. However, the main function of a traditional butterfly valve is to open or close, and the flow of powder can be controlled by adjusting the opening of the valve plate, but it cannot be used for quantitative feeding of powder. Utility Model Content

[0004] In order to overcome the problems of the prior art, the utility model provides a star-shaped material dividing butterfly valve, the main feature of which is that the valve core of the star-shaped material dividing butterfly valve is designed as a plurality of valve plates, and the valve plates are evenly and symmetrically distributed in groups on the valve plate axis.

[0005] Among the multiple valve plates of the star-shaped material dividing butterfly valve, the diameter of one group of valve plates is slightly larger than the diameters of the other groups of valve plates. Except for this group of valve plates with larger diameters, the diameters of the other groups of valve plates are designed to be smaller so that there is a certain gap between them and the valve body.

[0006] A rubber sealing ring is arranged in the valve body of the star-shaped material dividing butterfly valve, and a mounting hole for a valve plate shaft is reserved on the sealing ring. The valve plate shaft is firstly sheathed with the sealing ring through the mounting hole on the sealing ring.

[0007] The valve body of the star-shaped material dividing butterfly valve is designed as a split structure, and a sealing ring installation groove and a valve plate shaft support groove are set on the valve body. After the sealing ring and the valve plate shaft are embedded in the groove on the valve body and locked by the bolts on the valve body, the sealing ring can be pressed between the valve body.

[0008] When the valve plates of the larger diameter group rotate to the closed position, they fit tightly with the valve body sealing ring; while when the valve plates of the other smaller groups rotate to the closed position, there is still a certain gap between them and the valve body sealing ring.

[0009] The sealing ring of the star-shaped butterfly valve adopts rubber seal, which can be designed with a larger sealing interference fit to ensure a close fit with the valve plate to produce a reliable seal. In addition, the valve has a simple structure and is easy to clean and sterilize. It is mainly used in the fields of food, medicine, and chemical industry.

[0010] The technical solution adopted by the utility model to solve the technical problem is: the valve core of the star-shaped material distribution butterfly valve is designed as multiple groups of valve plates, and the area separated by each two adjacent valve plates will be filled with a unit of material. When the valve core rotates, these units of material can be quantitatively dropped downward. The material capacity filled in the adjacent valve plates * the number of valve discs * the number of rotations = the total quantitative packaging amount. In practical applications, the total packaging amount can be calculated by recording the number of rotations of the valve core.

[0011] The beneficial effect of the utility model is that in the closed position, an effective seal can be formed between the valve plates of the group with a larger diameter and the valve body sealing ring to meet the pressure bearing requirements; and a larger gap is reserved between the valve plates of the other groups and the valve body sealing ring to ensure smooth rotation of the valve core.

[0012] The valve body of the star-shaped material dividing butterfly valve is designed as a split structure with upper and lower halves. This design can meet the needs of rapid disassembly and assembly of the sealing ring, and cleaning and maintenance are also more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 This is an axonometric diagram showing the appearance of the utility model;

[0015] Figure 2 It is a full cutaway schematic diagram of the utility model;

[0016] Figure 3 It is a top view of the utility model;

[0017] Figure 4 This is a side schematic cross-sectional view of the utility model Figure 1 ;

[0018] Figure 5 This is a side schematic cross-sectional view of the utility model Figure 2 ;

[0019] Figure 6 This is a schematic diagram of the valve core structure of the utility model;

[0020] Figure 7 This is a schematic diagram of the material loading state of the valve of the utility model;

[0021] In the figure, 1. upper valve body, 2. valve core, 2-1. valve plate, 2-2. valve stem shaft, 2-3. stem shaft step 1, 2-4. stem shaft step 2, 3. sealing ring, 4. shaft sleeve, 5. lower valve body, 6. bracket, 7. actuator. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be a connection between the two elements. For ordinary technicians in this field, the meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] [Example 1]

[0025] Figure 2 , Figure 3 As shown: the star-shaped material dividing butterfly valve disclosed in the utility model is mainly composed of 7 main parts, namely, an upper valve body 1, a valve core 2, a sealing ring 3, a shaft sleeve 4, a lower valve body 5, a bracket 6, and an actuator 7.

[0026] [Example 2]

[0027] like Figure 6 As shown, the valve core 2 of the star-shaped material dividing butterfly valve disclosed in the utility model is mainly composed of a valve plate 2-1, a valve stem shaft 2-2, a stem shaft step 1 2-3, and a stem shaft step 2-4, a total of 4 parts.

[0028] [Example 3]

[0029] like Figure 4 , Figure 5 , Figure 6As shown: among the multiple valve plates 2-1 of a star-shaped material dividing butterfly valve disclosed by the utility model, the diameter of one group of valve plates 2-1 is slightly larger than the diameter of other groups of valve plates 2-1. Except for this group of valve plates with larger diameter, the diameters of the other groups of valve plates are designed to be smaller so that there is a certain gap between them and the valve body.

[0030] like Figure 4 , Figure 5 As shown: when the valve plate 2-1 of the larger diameter group rotates to the closed position, it fits tightly with the valve body sealing ring 3; while when the other groups of smaller valve plates rotate to the closed position, there is still a certain gap between them and the valve body sealing ring.

[0031] [Example 4]

[0032] like Figure 1 , Figure 2 As shown: the upper valve body 1 and the lower valve body 5 form a rotating body component, the inner part of which is processed with a step groove, and the mounting hole is processed on the end flange surface. After the sealing ring 3 is embedded in the step groove of the upper valve body 1 and the lower valve body 5, the upper valve body 1 and the lower valve body 5 are tightened together with bolts. The upper valve body 1 and the lower valve body 5 can be made of stainless steel, aluminum alloy, polymer synthetic plastic material, etc. The processing methods include but are not limited to casting, forging, injection molding, welding, turning, milling, etc. The main materials include but are not limited to SUS201, SUS301, SUS304, SUS304L, SUS316, SUS316L, AL5052, AL6061, AL7075, POM, PE, PET, PEEK, PVC, PP, ABS, PC, PTFE, PS, nylon, etc.

[0033] like Figure 6 As shown: the valve core 2 of the star-shaped material-dividing butterfly valve is a shaft-like part - a valve stem shaft 2-2, and a plurality of valve plates 2-1 are distributed in the middle area of ​​the valve stem shaft 2-2; the diameter of one group of valve plates 2-1 is slightly larger than that of other groups of valve plates 2-1; the two ends of the valve stem shaft 2-2 are processed with a stem shaft step 1 2-3, and the stem shaft step 2-4 is used to install the shaft sleeve 4;

[0034] During the actual installation process, first insert the valve core 2 of the star-shaped material dividing butterfly valve into the shaft hole reserved on the sealing ring 3, and then install the shaft sleeve 4 to the rod shaft step 1 2-3 and the rod shaft step 2 2-4; after the above pre-installation, install the valve core 2 with the sealing ring 3 and the shaft sleeve 4 together through the sealing ring 3 into the step groove of the upper valve body 1 and the lower valve body 5, and then lock it with bolts.

[0035] The valve core 2 of the star-shaped material dividing butterfly valve can be made of stainless steel, aluminum alloy, polymer synthetic plastic, etc. The processing methods include but are not limited to casting, forging, injection molding, welding, turning, milling, etc. The main materials include but are not limited to SUS201, SUS301, SUS304, SUS304L, SUS316, SUS316L, AL5052, AL6061, AL7075, POM, PE, PET, PEEK, PVC, PP, ABS, PC, PTFE, PS, nylon, etc.

[0036] [Example 5]

[0037] like Figure 2 , Figure 3 As shown: after the upper valve body 1 and the lower valve body 5 of the star-shaped material dividing butterfly valve are combined into one body, a bracket 6 can be installed on the side thereof, and an actuator 7 is installed on the bracket 6. The actuator 7 drives the valve core 2 to rotate and then quantitative loading and unloading of materials is performed.

[0038] like Figure 7 As shown: the valve core 2 of the star-shaped material distribution butterfly valve is designed as multiple groups of valve plates 2-1, and the area separated by each two adjacent valve plates 2-1 will be filled with a unit of material. Driven by the actuator 7, the valve core 2 can rotate clockwise or counterclockwise. During this rotation process, the materials filled in these units can be quantitatively dropped downward. The material capacity filled in adjacent valve plates * the number of valve discs * the number of rotations = the total quantitative packaging amount. In actual applications, the total packaging amount can be calculated by recording the number of rotations of the valve core.

Claims

1. A star-shaped material-dividing butterfly valve, which is mainly characterized in that it is composed of 7 main parts, namely an upper valve body (1), a valve core (2), a sealing ring (3), a shaft sleeve (4), a lower valve body (5), a bracket (6), and an actuator (7); wherein the valve core (2) is mainly composed of 4 parts, namely a valve plate (2-1), a valve stem shaft (2-2), a first stem shaft step (2-3), and a second stem shaft step (2-4); the valve core (2) is designed to be a plurality of valve plates (2-1), and these valve plates (2-1) are evenly and symmetrically distributed in groups on the valve stem shaft (2-2); among the plurality of valve plates (2-1) of the star-shaped material-dividing butterfly valve, the diameter of one group of valve plates (2-1) is slightly larger than the diameter of other groups of valve plates (2-1), and except for this group of valve plates (2-1) with a larger diameter, the diameters of the other groups of valve plates (2-1) are designed to be smaller, so that there is a certain gap between them and the valve body.

2. A star-shaped material distribution butterfly valve according to claim 1, characterized in that A rubber sealing ring (3) is arranged in the valve body of the star-shaped material-dividing butterfly valve, a mounting hole for a valve stem shaft (2-2) is reserved on the sealing ring (3), and the valve stem shaft (2-2) is first sheathed together with the sealing ring (3) through the mounting hole on the sealing ring (3).

3. A star-shaped material distribution butterfly valve according to claim 1, characterized in that The valve body of the star-shaped material dividing butterfly valve is designed as a split structure, and a sealing ring (3) installation groove and a valve stem shaft (2-2) support groove are arranged on the valve body. After the sealing ring (3) and the valve stem shaft (2-2) are embedded in the groove on the valve body and locked by bolts on the valve body, the sealing ring (3) can be pressed between the valve body.

4. A star-shaped material distribution butterfly valve according to claim 1, characterized in that When the valve plates (2-1) of the group with a larger diameter rotate to a closed position, they fit tightly with the valve body sealing ring (3), while when the valve plates of the other groups with smaller diameters rotate to a closed position, there is still a certain gap between them and the valve body sealing ring (3).

5. A star-shaped material distribution butterfly valve according to claim 1, characterized in that The sealing ring (3) of the star-shaped material distribution butterfly valve adopts a rubber seal, and a larger sealing interference fit amount can be designed to ensure a tight fit with the valve plate (2-1) to produce a reliable seal.

6. A star-shaped material distribution butterfly valve according to claim 1, characterized in that The valve core (2) is designed as a plurality of valve plates (2-1), and the area separated by each two adjacent valve plates is filled with a unit of material. When the valve core rotates, the materials of these units can be quantitatively dropped downward.

7. A star-shaped material distribution butterfly valve according to claim 1, characterized in that In the closed position, an effective seal can be formed between the valve plates (2-1) of the group with the larger diameter and the valve body sealing ring (3), thereby meeting the pressure bearing requirement; and a relatively large gap is reserved between the valve plates (2-1) of the other groups and the valve body sealing ring (3), thereby ensuring smooth rotation of the valve core (2).

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