High-performance butterfly valve with valve shaft and butterfly plate in spline connection

Abstract

The utility model belongs to the technical field of high-performance butterfly valves, in particular to a high-performance butterfly valve with a valve shaft in spline connection with a butterfly plate, which comprises a butterfly valve casing, a limit groove is arranged on the upper surface of the butterfly valve casing, a plurality of threaded holes are arranged on the upper surface of the butterfly valve casing, and a valve shaft body is rotatably connected to the upper surface of the butterfly valve casing in a penetrating manner. The inner sleeve column, the outer sleeve column, the base, the threaded rod, the worm gear, the rotating rod, the worm, the rotating disc and the like are arranged, the rotating disc is rotated, the rotating disc drives the worm to rotate through the rotating rod, the worm drives the threaded rod to rotate through the worm gear, the inner sleeve column, the outer sleeve column, the base, the threaded rod, the worm gear, the rotating rod and the rotating disc are fixedly connected, and the rotating disc is fixedly connected with the inner sleeve column. The threaded rod drives the inner sleeve column to move, the butterfly valve shell is supported by the inner sleeve column, the situation that when the butterfly valve shell is suspended due to different ground heights, the pipeline connecting position is stressed and bent downwards due to the self weight is avoided, and the probability of liquid leakage at the connecting position is easily reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of high-performance butterfly valves, in particular to a high-performance butterfly valve in which a valve shaft and a butterfly plate are spline-connected. Background Art

[0002] Butterfly valve, also known as flap valve, is a simple regulating valve with a disc-shaped butterfly plate that rotates around the valve shaft to open and close. The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays a role of cutting off and throttling in pipelines.

[0003] However, in existing equipment, the butterfly valve is installed between two pipes. Due to the different ground levels, part of the butterfly valve is suspended in the air. Due to its own weight, the pipe connection is forced to bend downward, increasing the probability of liquid leakage at the connection. For this reason, a high-performance butterfly valve with a spline connection between the valve shaft and the butterfly plate is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a high-performance butterfly valve in which a valve shaft and a butterfly plate are spline-connected.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a high-performance butterfly valve with a valve shaft and a butterfly plate spline connection, comprising a butterfly valve housing, a limiting groove being provided on the upper surface of the butterfly valve housing, a plurality of threaded holes being provided on the upper surface of the butterfly valve housing, a valve shaft body being rotatably connected through the upper surface of the butterfly valve housing, a spline being fixedly provided on the valve shaft body, a rotating disk being fixedly connected on the upper surface of the valve shaft body, a limiting disk being fixedly connected on the valve shaft body, the limiting disk being adapted for the limiting groove, a fixed disk being movably provided on the valve shaft body, a plurality of bolts being movably provided on the fixed disk, each of the bolts being adapted for the corresponding threaded hole, a fixing assembly being provided on the butterfly valve housing, a connecting groove being provided at the bottom of the butterfly valve housing, and a supporting structure being provided in the connecting groove.

[0006] As a further description of the above technical solution:

[0007] A butterfly plate body is movably provided inside the butterfly valve housing. A spline groove is provided at one end of the butterfly plate body, and the spline groove is adapted to a spline.

[0008] As a further description of the above technical solution:

[0009] The lifting structure includes an inner sleeve column movably connected in a connecting groove, a clamping hole is opened on one side of the inner sleeve column, an outer sleeve column is slidably connected to the outer sleeve column on the outer wall, and the bottom of the outer sleeve column is fixedly connected to the base.

[0010] As a further description of the above technical solution:

[0011] The inner bottom of the outer sleeve is rotatably connected to a threaded rod, one end of the threaded rod extends into the interior of the inner sleeve and is threadedly connected, and a worm gear is fixedly connected to the threaded rod.

[0012] As a further description of the above technical solution:

[0013] A rotating rod is rotatably connected to one side of the outer sleeve, one end of the rotating rod is fixedly connected to a worm, the worm is meshed with the worm wheel, and one side of the rotating rod is fixedly connected to a rotating disk.

[0014] As a further description of the above technical solution:

[0015] One side of the butterfly valve housing is fixedly connected to a connecting frame, one side of the connecting frame is slidably connected to a sliding rod, one end of the sliding rod is fixedly connected to a clamping column, one end of the clamping column is slidably connected to one side of the butterfly valve housing, the clamping column is adapted to the clamping hole, and a spring is movably provided on the sliding rod, one end of the spring is fixedly connected to an inner side of the connecting frame, and the other end is fixedly connected to one side of the clamping column.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the existing technology, the high-performance butterfly valve for spline connection between the valve shaft and the butterfly plate is provided with an inner sleeve column, an outer sleeve column, a base, a threaded rod, a worm gear, a rotating rod, a worm and a rotating disk. The rotating disk is rotated, and the rotating disk drives the worm to rotate through the rotating rod. The worm drives the threaded rod to rotate through the worm gear. The threaded rod drives the inner sleeve column to move. The inner sleeve column supports the butterfly valve housing to prevent the butterfly valve housing from being suspended in the air due to its own weight, which causes the pipe connection to bend downward due to the force caused by the different ground heights, and is beneficial to reducing the probability of liquid leakage at the connection.

[0018] 2. Compared with the existing technology, this high-performance butterfly valve used for spline connection between the valve shaft and the butterfly plate is equipped with a connecting frame, a sliding rod, a clamping column and a spring. When the sliding rod is pulled, the sliding rod drives the clamping column to move, so that the clamping column is disengaged from the clamping hole, making it convenient for the staff to remove the lifting structure for repair and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-performance butterfly valve with a valve shaft and a butterfly plate splined connection proposed by the utility model;

[0020] Figure 2 This is a cross-sectional view of a high-performance butterfly valve with a valve shaft and a butterfly plate splined connection proposed by the utility model;

[0021] Figure 3This is an exploded view of the butterfly valve housing and valve shaft body of a high-performance butterfly valve with a valve shaft and a butterfly plate spline connection proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of a lifting structure of a high-performance butterfly valve with a valve shaft and a butterfly plate spline connection proposed by the utility model;

[0023] Figure 5 This is an exploded diagram of the lifting structure of a high-performance butterfly valve with a valve shaft and a butterfly plate spline connection proposed by the utility model;

[0024] Figure 6 This is a schematic diagram of a fixing assembly of a high-performance butterfly valve proposed by the present invention, in which the valve shaft and the butterfly plate are spline-connected.

[0025] Legend:

[0026] 1. Butterfly valve body; 2. Valve shaft body; 3. Limit plate; 4. Rotating plate; 5. Fixed plate; 6. Bolts; 7. Butterfly plate body; 8. Lifting structure; 801. Inner sleeve column; 802. Outer sleeve column; 803. Base; 804. Threaded rod; 805. Worm gear; 806. Rotating rod; 807. Worm; 808. Rotating plate; 9. Fixed assembly; 901. Connecting frame; 902. Sliding rod; 903. Snap-on column; 904. Spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figures 1 to 6 The utility model provides a high-performance butterfly valve with a valve shaft and a butterfly plate spline connection: it includes a butterfly valve housing 1, a limiting groove is provided on the upper surface of the butterfly valve housing 1, a plurality of threaded holes are provided on the upper surface of the butterfly valve housing 1, a valve shaft body 2 is rotatably connected to the upper surface of the butterfly valve housing 1, a spline 1 is fixedly provided on the valve shaft body 2, a butterfly plate body 7 is movably provided inside the butterfly valve housing 1, a spline groove is provided at one end of the butterfly plate body 7, the spline groove is adapted to the spline 1, a rotating disk 4 is fixedly connected to the upper surface of the valve shaft body 2, a limiting disk 3 is fixedly connected to the valve shaft body 2, the limiting disk 3 is adapted to the limiting groove, a fixed disk 5 is movably provided on the valve shaft body 2, and a plurality of bolts 6 are movably provided on the fixed disk 5, each bolt 6 is adapted to the corresponding threaded hole, a fixing assembly 9 is provided on the butterfly valve housing 1, and a connecting groove is provided at the bottom of the butterfly valve housing 1, and a lifting structure 8 is provided in the connecting groove;

[0029] In order to achieve the purpose of lifting, the lifting structure 8 includes an inner sleeve column 801 movably connected in the connecting groove, a clamping hole is opened on one side of the inner sleeve column 801, the outer wall of the inner sleeve column 801 is slidably connected to the outer sleeve column 802, the bottom of the outer sleeve column 802 is fixedly connected to the base 803, the inner bottom of the outer sleeve column 802 is rotatably connected to the threaded rod 804, one end of the threaded rod 804 extends to the interior of the inner sleeve column 801 and is threadedly connected, a worm gear 805 is fixedly connected to the threaded rod 804, and one side of the outer sleeve column 802 is rotatably connected to the rotating rod 806, one end of the rotating rod 806 A worm 807 is fixedly connected, and the worm 807 is meshed with the worm wheel 805. A rotating disk 808 is fixedly connected to one side of the rotating rod 806. When the rotating disk 808 is rotated, the rotating disk 808 drives the worm 807 to rotate through the rotating rod 806. The worm 807 drives the threaded rod 804 to rotate through the worm wheel 805. The threaded rod 804 drives the inner sleeve column 801 to move. The inner sleeve column 801 holds up the butterfly valve housing 1 to prevent the butterfly valve housing 1 from being suspended in the air due to its own weight, which causes the pipe connection to bend downward due to the force, thereby reducing the probability of liquid leakage at the connection.

[0030] In order to facilitate the maintenance of the lifting structure 8, a connecting frame 901 is fixedly connected to one side of the butterfly valve housing 1, and a sliding rod 902 is slidably connected to one side of the connecting frame 901. One end of the sliding rod 902 is fixedly connected to a clamping column 903, and one end of the clamping column 903 is slidably connected to one side of the butterfly valve housing 1. The clamping column 903 is adapted to the clamping hole, and a spring 904 is movably provided on the sliding rod 902. One end of the spring 904 is fixedly connected to the inner side of the connecting frame 901, and the other end is fixedly connected to one side of the clamping column 903. Pull the sliding rod 902, and the sliding rod 902 drives the clamping column 903 to move, so that the clamping column 903 is disengaged from the clamping hole, making it convenient for the staff to take out the lifting structure 8 for maintenance.

[0031] Working principle: Rotate the rotating disk 808, the rotating disk 808 drives the worm 807 to rotate through the rotating rod 806, the worm 807 drives the threaded rod 804 to rotate through the worm gear 805, the threaded rod 804 drives the inner sleeve column 801 to move, the inner sleeve column 801 holds up the butterfly valve housing 1, to prevent the butterfly valve housing 1 from being suspended in the air due to its own weight, which causes the pipe connection to bend downward, which is beneficial to reduce the probability of liquid leakage at the connection, pull the sliding rod 902, the sliding rod 902 drives the clamping column 903 to move, so that the clamping column 903 is disengaged from the clamping hole, making it convenient for the staff to take out the lifting structure 8 for maintenance.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-performance butterfly valve with a valve shaft and a butterfly plate splined, comprising a butterfly valve housing (1), characterized in that: The upper surface of the butterfly valve housing (1) is provided with a limiting groove, the upper surface of the butterfly valve housing (1) is provided with a plurality of threaded holes, the upper surface of the butterfly valve housing (1) is rotatably connected to a valve shaft body (2), a spline 1 is fixedly provided on the valve shaft body (2), a rotating disk (4) is fixedly connected to the upper surface of the valve shaft body (2), a limiting disk (3) is fixedly connected to the valve shaft body (2), the limiting disk (3) is adapted to the limiting groove, a fixed disk (5) is movably provided on the valve shaft body (2), a plurality of bolts (6) are movably provided on the fixed disk (5), each of the bolts (6) is adapted to the corresponding threaded hole, a fixing assembly (9) is provided on the butterfly valve housing (1), a connecting groove is provided at the bottom of the butterfly valve housing (1), and a lifting structure (8) is provided in the connecting groove.

2. A high-performance butterfly valve with a valve shaft and a butterfly plate spline connection according to claim 1, characterized in that: A butterfly plate body (7) is movably provided inside the butterfly valve housing (1), and a spline groove is provided at one end of the butterfly plate body (7), and the spline groove is adapted to a spline.

3. A high-performance butterfly valve with a valve shaft and a butterfly plate spline connection according to claim 1, characterized in that: The lifting structure (8) includes an inner sleeve column (801) movably connected in a connecting groove, a clamping hole is provided on one side of the inner sleeve column (801), an outer sleeve column (802) is slidably connected to the outer sleeve column (802) on the outer wall of the inner sleeve column (801), and the bottom of the outer sleeve column (802) is fixedly connected to a base (803).

4. A high-performance butterfly valve with a valve shaft and butterfly plate spline connection according to claim 3, characterized in that: The inner bottom of the outer sleeve (802) is rotatably connected to a threaded rod (804), one end of which extends into the interior of the inner sleeve (801) and is threadedly connected, and a worm gear (805) is fixedly connected to the threaded rod (804).

5. A high-performance butterfly valve with a valve shaft and a butterfly plate splined connection according to claim 4, characterized in that: A rotating rod (806) is rotatably connected to one side of the outer sleeve (802), one end of the rotating rod (806) is fixedly connected to a worm (807), the worm (807) is meshed with the worm wheel (805), and one side of the rotating rod (806) is fixedly connected to a rotating disk (808).

6. A high-performance butterfly valve with a valve shaft and a butterfly plate splined connection according to claim 3, characterized in that: One side of the butterfly valve housing (1) is fixedly connected to a connecting frame (901), one side of the connecting frame (901) is slidably connected to a sliding rod (902), one end of the sliding rod (902) is fixedly connected to a clamping column (903), one end of the clamping column (903) is slidably connected to one side of the butterfly valve housing (1), the clamping column (903) is adapted to the clamping hole, and a spring (904) is movably provided on the sliding rod (902), one end of the spring (904) is fixedly connected to an inner side of the connecting frame (901), and the other end is fixedly connected to one side of the clamping column (903).

Images