Butterfly valve

Abstract

According to the technical scheme, the butterfly valve is characterized by comprising a valve body, the water inlet end and the water outlet end of the valve body are each provided with a flange end, the upper end of the valve body is provided with an integrally-formed connecting base, the connecting base sequentially comprises a mounting table and an abutting table from bottom to top, and the abutting table is used for containing a transmission device; connecting holes are formed in the two ends of the mounting table, and a valve rod groove allowing a valve rod to penetrate through is formed in the middle of the mounting table; the assembling groove is formed in the abutting table in a hollowed-out mode, the length size and the width size of the assembling groove are both larger than the length size and the width size of the mounting table, the butterfly valve can facilitate equipment assembling, and the cost can be reduced.

Description

Technical Field

[0001] This utility model relates to a valve, and more specifically, to a butterfly valve. Background Technology

[0002] A butterfly valve is a type of valve that controls fluid flow by rotating a butterfly plate within the valve body. Based on their structural characteristics, butterfly valves can be classified into concentric butterfly valves, single eccentric butterfly valves, double eccentric butterfly valves, and triple eccentric butterfly valves. Each type has its specific design advantages and applications.

[0003] To solve the installation problem of the transmission device, the existing butterfly valve adopts the following structure: a mounting bracket is fixed on the valve body, then the connecting seat is connected to the mounting bracket by bolts, and then the transmission device is installed on the connecting seat by bolts. This not only makes the assembly process complicated, but also has high process and material costs. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a butterfly valve that can facilitate equipment assembly and reduce costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a butterfly valve, comprising a valve body, wherein the inlet and outlet ends of the valve body are provided with flange ends, and an integrally formed connecting seat is provided at the upper end of the valve body, wherein the connecting seat comprises, from bottom to top, a mounting platform and an abutment platform, the abutment platform being used for placing a transmission device, both ends of the mounting platform being provided with connecting holes, and the middle of the mounting platform being provided with a valve stem groove for the valve stem to pass through;

[0006] The abutment platform is provided with a hollowed-out assembly groove, the length and width of which are both greater than the length and width of the mounting platform.

[0007] The present invention is further configured such that: a connecting rod is provided on both sides of the connecting seat, and the two connecting rods are respectively used to connect to the flange ends on both sides.

[0008] The present invention is further configured such that: connecting arms are provided on both sides of the abutment platform in the width direction, and viewing windows are formed on both sides of the abutment platform in the length direction.

[0009] The present invention is further configured such that the connecting arm is arranged in an L-shape.

[0010] The present invention is further configured such that the abutment platform is provided with multiple sets of mounting holes.

[0011] The present invention is further configured such that the mounting hole is an oblong hole.

[0012] The present invention is further configured such that a sealing step is provided inside the mounting platform.

[0013] The present invention is further configured such that: a valve seat, a valve disc, and a valve stem are provided in the valve body; the valve disc is rotatably connected to the valve seat through the valve stem; and a sealing surface with an inclination angle of β, where β is 10°, is provided on the valve seat.

[0014] The present invention is further configured such that: the valve disc includes a butterfly plate and a sealing plate, the sealing plate is detachably installed on the butterfly plate by bolts, the butterfly plate is provided with a connecting part, the sealing plate is provided with a connecting groove through the middle, the sealing plate is formed by laser cutting, and the sealing plate is installed at the connecting part through the connecting groove.

[0015] The present invention is further configured such that: the sealing plate includes a sealing end face facing the water inlet end, and when the sealing plate is installed on the butterfly plate, the sealing end face does not exceed the valve seat setting.

[0016] In summary, this utility model has the following advantages: the connector is integrally processed by laser cutting, and only the lower end needs to be directly welded to the valve body, eliminating the need for multi-section connections, reducing assembly steps, and improving the convenience of operation.

[0017] The design of the mounting platform and the abutment platform allows the drive end of the transmission device to be easily aligned with the valve stem groove and connected to the valve stem when the transmission device is placed on the abutment platform. It is then fixed by bolts through the connection hole.

[0018] It saves space while meeting installation requirements. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of the valve body;

[0020] Figure 2 This is a top view of the valve body;

[0021] Figure 3 This is a cross-sectional view of the valve.

[0022] Reference numerals: 1. Valve body; 11. Valve seat; 12. Valve disc; 121. Butterfly plate; 122. Sealing plate; 2. Flange end; 3. Connecting seat; 31. Connecting rod; 4. Mounting platform; 41. Connecting hole; 42. Valve stem groove; 43. Sealing step; 5. Abutment platform; 51. Assembly groove; 52. Mounting hole; 6. Connecting arm; 7. Viewing window. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0024] Reference Figures 1 to 3 As shown, in order to achieve the above objectives, the present invention provides the following technical solution: a butterfly valve, including a valve body 1, a flange end 2 provided at both the inlet and outlet ends of the valve body 1, an integrally formed connecting seat 3 provided at the upper end of the valve body 1, the connecting seat 3 including a mounting platform 4 and an abutment platform 5 from bottom to top, the abutment platform 5 being used for placing the transmission device, the mounting platform 4 having connecting holes 41 at both ends, and a valve stem groove 42 for the valve stem to pass through in the middle of the mounting platform 4;

[0025] The abutment platform 5 has a hollowed-out assembly groove 51, the length and width of which are larger than the length and width of the mounting platform 4.

[0026] In this invention, the connecting seat 3 is integrally processed by laser cutting. It only needs to be directly welded to the valve body 1 at its lower end, eliminating the need for multi-section connections, reducing assembly steps, and improving the ease of operation.

[0027] The design of the mounting platform 4 and the abutment platform 5 allows the drive end of the transmission device to be easily aligned with the valve stem groove 42 and connected to the valve stem when the transmission device is placed on the abutment platform 5. Then, it is fixed by bolting through the connection hole 41.

[0028] It saves space while meeting installation requirements.

[0029] This utility model is further configured such that: connecting rods are provided on both sides of the connecting seat 3, and the two connecting rods are respectively used to connect to the flange ends 2 on both sides. Figure 1 As shown, the design of this structure, by increasing the welding support points, can enhance the stability of the connecting seat 3.

[0030] The present invention is further configured such that: connecting arms 6 are provided on both sides of the abutment platform 5 in the width direction, and viewing windows 7 are formed on both sides of the abutment platform 5 in the length direction.

[0031] The design of this structure ensures stable connection while enhancing the visibility window 7, making it easier to observe the rotation of the valve stem.

[0032] This utility model is further configured such that the connecting arm 6 is L-shaped, thereby improving the strength of the connecting arm 6. Figure 1As shown, the thickness of the middle part of the connecting arm 6 is greater than the thickness of the two sides.

[0033] This utility model is further configured such that: the abutment platform 5 is provided with multiple sets of mounting holes 52. The mounting holes 52 are oblong holes. For example... Figure 1 and Figure 2 As shown, the design of this structure allows for convenient secondary fixing with the transmission device, and can meet the installation requirements of various transmission devices of different specifications.

[0034] This utility model is further configured such that a sealing step 43 is provided inside the mounting platform 4. This structural configuration, as shown... Figure 2 and Figure 3 The design facilitates the installation and placement of the sealing ring.

[0035] The present invention is further configured such that: a valve seat 11, a valve disc 12, and a valve stem are provided inside the valve body 1; the valve disc 12 is rotatably connected to the valve seat 11 through the valve stem; and a sealing surface with an inclination angle of β is provided on the valve seat 11, where β is 10°.

[0036] The present invention is further configured such that: the valve disc 12 includes a butterfly plate 121 and a sealing plate 122, the sealing plate 122 is detachably installed on the butterfly plate 121 by bolts, the butterfly plate 121 is provided with a connecting part, the sealing plate 122 is provided with a connecting groove through the middle part, the sealing plate 122 is formed by laser cutting, and the sealing plate 122 is installed at the connecting part through the connecting groove.

[0037] The present invention is further configured such that: the sealing plate 122 includes a sealing end face facing the water inlet end, and when the sealing plate 122 is installed on the butterfly plate 121, the sealing end face does not extend beyond the valve seat 11.

[0038] Laser cutting technology can be used to quickly form the required sealing plate 122. Due to laser cutting, a thinner sealing plate 122 can be formed, which reduces both raw material costs and process costs. Furthermore, since the sealing end face does not exceed the valve seat 11, when liquid impacts the valve disc 12, it can buffer against the valve seat 11, thereby playing a buffering role to a certain extent.

[0039] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A butterfly valve, comprising a valve body (1), wherein both the inlet and outlet ends of the valve body (1) are provided with flange ends (2), characterized in that: The upper end of the valve body (1) is provided with an integrally formed connecting seat (3). The connecting seat (3) includes a mounting platform (4) and an abutment platform (5) from bottom to top. The abutment platform (5) is used for placing the transmission device. Both ends of the mounting platform (4) are provided with connecting holes (41). The middle part of the mounting platform (4) is provided with a valve stem groove (42) for the valve stem to pass through. The abutment platform (5) is provided with a hollow assembly groove (51), the length and width of which are greater than the length and width of the mounting platform (4).

2. A butterfly valve according to claim 1, characterized in that: The connecting seat (3) is provided with connecting rods on both sides, and the two connecting rods are respectively used to connect with the flange ends (2) on both sides.

3. A butterfly valve according to claim 1, characterized in that: Connecting arms (6) are provided on both sides of the abutment platform (5) in the width direction, and viewing windows (7) are formed on both sides of the abutment platform (5) in the length direction.

4. A butterfly valve according to claim 3, characterized in that: The connecting arm (6) is arranged in an L-shape.

5. A butterfly valve according to claim 1, characterized in that: The abutment platform (5) is provided with multiple sets of mounting holes (52).

6. A butterfly valve according to claim 5, characterized in that: The mounting hole (52) is an oblong hole.

7. A butterfly valve according to claim 1, characterized in that: A sealing step (43) is provided inside the mounting platform (4).

8. A butterfly valve according to any one of claims 1-7, characterized in that: The valve body (1) is provided with a valve seat (11), a valve disc (12) and a valve stem. The valve disc (12) is rotatably connected to the valve seat (11) through the valve stem. The valve seat (11) is provided with a sealing surface with an inclination angle of β, where β is 10°.

9. A butterfly valve according to claim 8, characterized in that: The valve disc (12) includes a butterfly plate (121) and a sealing plate (122). The sealing plate (122) is detachably installed on the butterfly plate (121) by bolts. The butterfly plate (121) has a protruding connecting part. The sealing plate (122) has a connecting groove through the middle. The sealing plate (122) is formed by laser cutting, and the sealing plate (122) is installed at the connecting part through the connecting groove.

10. A butterfly valve according to claim 9, characterized in that: The sealing plate (122) includes a sealing end face facing the water inlet end. When the sealing plate (122) is installed on the butterfly plate (121), the sealing end face does not extend beyond the valve seat (11).

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