Control device for opening and closing of hopper flap valve

Abstract

A control device for opening and closing a flap valve of a hopper relates to the field of processing of superfine energetic materials and comprises a threaded suspender, an adjusting wheel and a support. The support comprises two pieces of cuboid stainless steel which are vertically welded with each other and two quadrant steel plates, and the cuboid stainless steel and the two quadrant steel plates in the vertical direction are mutually fixed with the hopper body through bolts and nuts; the threaded hanging rods are located on the two sides of the stainless steel cuboid in the horizontal direction of the support and penetrate through the support and the adjusting wheel. The adjusting wheel is fixedly mounted on the threaded suspender, and the adjusting wheel can move up and down by rotating the adjusting wheel; the flap valve is located on the outer side of the lower half portion of the hopper and drives the valve clack which is arranged in the hopper and connected with the rotating shaft in the using process, and therefore the material discharging process is controlled. The opening and closing control device is used for controlling the opening and closing of the flap valve in the hopper of the weighing and feeding container, is suitable for being installed in the hopper used for bearing superfine energetic powder materials, and achieves the purposes of sealed transfer and split-flow discharging of the materials in the hopper.

Description

Technical Field

[0001] This utility model relates to a control device for switching on and off a hopper flap valve, and belongs to the field of mechanical technology. Background Technology

[0002] Currently, various types of flap valves are widely used in various industries. In the process of sieving, weighing and dispensing ultrafine energetic materials, flap valve mechanisms are also required. The original flap valve switching device is complicated to operate during use, and auxiliary tools are needed to complete the closure process. Utility Model Content

[0003] The technical problem solved by this utility model is to overcome the shortcomings of the prior art and provide a control device for switching on and off the hopper flap valve. It is simple to operate and is very suitable for installation in hoppers used to carry ultrafine energetic powder materials, so as to achieve the purpose of sealed transfer and diversion of materials in the hopper.

[0004] The technical solution of this utility model is: a control device for switching on and off a hopper flap valve, including a threaded rod, an adjusting wheel, and a support;

[0005] The support includes two rectangular stainless steel blocks welded perpendicularly to each other and two quarter-circular steel plates. The rectangular stainless steel blocks and the two quarter-circular steel plates in the vertical direction are fixed to the hopper body by bolts and nuts.

[0006] The threaded rod is located on both sides of the stainless steel cuboid in the horizontal direction of the support, and passes through the support and the interior of the adjusting wheel;

[0007] The adjusting wheel is mounted and fixed on the threaded rod, and its up and down movement is achieved by rotating the adjusting wheel;

[0008] The flap valve is located on the outer side of the lower half of the hopper. When in use, the flap valve drives the valve disc inside the hopper that is connected to the rotating shaft, thereby controlling the material feeding process.

[0009] Furthermore, the lower end of the threaded rod is provided with a hook that engages with the rotating shaft connecting rod.

[0010] Furthermore, a corresponding PTFE sleeve is installed at the top of the threaded rod to prevent the adjusting wheel from exceeding the range of the threaded rod.

[0011] Furthermore, a transverse opening is provided in the middle of the limiting PTFE sleeve, and a cotter pin is used to prevent the limiting PTFE sleeve from loosening or being lost.

[0012] Furthermore, the surface roughness Ra of the adjusting wheel is not less than 6.3.

[0013] Furthermore, the lower end of the adjusting wheel has a curved surface structure.

[0014] Furthermore, the support is made of 316 stainless steel with a smooth surface.

[0015] Furthermore, the polishing grade of the support is not lower than A2 grade.

[0016] Furthermore, the threaded rod is made of brass.

[0017] The advantages of this utility model compared with the prior art are as follows:

[0018] Compared with the existing technology, when closing the flap valve, it is only necessary to rotate the adjusting wheel 2 to lower the height of the threaded rod 6, place both ends of the rotating shaft connecting rod 4 at the hook, and then rotate the adjusting wheel 2. Through the trapezoidal thread on the threaded rod 6, the threaded rod 6 is driven to make a linear motion in the vertical direction under the rotation of the adjusting wheel 2. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0020] Figure 1 This is a front view of the flap valve switching device proposed in this utility model;

[0021] Figure 2 This is a side view of the flap valve switching device proposed in this utility model;

[0022] Figure 3 This is a left view of the flap valve switching device proposed in this utility model;

[0023] Figure 4 This is a right view of the flap valve switching device proposed in this utility model;

[0024] Figure 5 This is a top view of the flap valve switching device proposed in this utility model. Detailed Implementation

[0025] To better understand the above technical solutions, the technical solutions of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this utility model and the specific features in the embodiments are detailed descriptions of the technical solutions of this utility model, rather than limitations on the technical solutions of this utility model. In the absence of conflict, the embodiments of this utility model and the technical features in the embodiments can be combined with each other.

[0026] The control device for switching on and off a hopper flap valve provided in the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Figures 1-5 The specific implementation may include: a threaded rod 6, an adjusting wheel 2, and a support 3. The support 3 includes two rectangular stainless steel pieces welded perpendicularly to each other and two quarter-circular steel plates. The vertically oriented rectangular stainless steel pieces and the two quarter-circular steel plates are fixed to the hopper body by bolts 5 and nuts. The threaded rod 6 is located on both sides of the horizontally oriented rectangular stainless steel pieces of the support 3 and passes through the support 3 and the interior of the adjusting wheel 2. The adjusting wheel 2 is installed and fixed on the threaded rod 6, and its up and down movement is achieved by rotating the adjusting wheel 2. The flap valve is located on the outer side of the lower half of the hopper. When in use, the flap valve drives the valve disc inside the hopper connected to the rotating shaft, thereby realizing the control of the material feeding process.

[0027] Furthermore, such as Figure 2 The threaded rod 6 is provided with a hook at its lower end;

[0028] Furthermore, such as Figure 3 The threaded rod 6 is fitted with a limit sleeve at the top and has a transverse opening in the middle, into which a cotter pin 7 is inserted.

[0029] In the solutions provided by the embodiments of this utility model, such as Figure 1 , 4 As shown in Figure 5, this utility model includes a limiting PTFE sleeve 1, an adjusting wheel 2, a support 3, a rotating shaft connecting rod 4, a bolt 5, a threaded lifting rod 6, and a cotter pin 7. In this embodiment, the device is installed on the lower edge of the outer side of the hopper. When it is necessary to close the hopper flap valve, the adjusting wheel 2 is rotated clockwise to lower the threaded lifting rod 6, and the end of the rotating shaft connecting rod 4 is placed in the hook at the bottom of the threaded lifting rod 6. Then, the adjusting wheel 2 is rotated counterclockwise to rotate the rotating shaft connecting rod 4 to a horizontal position, thus closing the hopper flap valve. When it is necessary to open the hopper flap valve, simply rotate the adjusting wheel 2 clockwise to gradually bring the angle of the rotating shaft connecting rod 4 to a vertical position, and then rotate the threaded lifting rod 6 to separate the two. This device is simple, aesthetically pleasing, and practical, making it very suitable for application on hoppers.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0031] The contents not described in detail in this utility model specification are common knowledge to those skilled in the art.

Claims

1. A control device for switching on and off a hopper flap valve, characterized in that, Includes a threaded rod (6), an adjusting wheel (2), and a support (3); The support (3) includes two rectangular stainless steel pieces welded perpendicularly to each other and two quarter-circular steel plates. The rectangular stainless steel pieces and the two quarter-circular steel plates in the vertical direction are fixed to the hopper body by bolts (5) and nuts. The threaded rod (6) is located on both sides of the stainless steel cuboid in the horizontal direction of the support (3) and passes through the inside of the support (3) and the adjusting wheel (2); The adjusting wheel (2) is fixed on the threaded rod (6), and its up and down movement is achieved by rotating the adjusting wheel (2); The flap valve is located on the outer side of the lower half of the hopper. When in use, the flap valve drives the valve disc inside the hopper that is connected to the rotating shaft, thereby controlling the material feeding process.

2. The control device for switching on and off a hopper flap valve according to claim 1, characterized in that, The lower end of the threaded rod (6) is provided with a hook that matches the rotating shaft connecting rod (4).

3. The control device for switching on and off a hopper flap valve according to claim 1, characterized in that, The top of the threaded rod (6) is fitted with a corresponding PTFE sleeve (1) to prevent the adjusting wheel (2) from exceeding the range of the threaded rod (6).

4. The control device for switching on and off a hopper flap valve according to claim 3, characterized in that, The limiting PTFE sleeve (1) has a transverse opening in the middle, and a cotter pin (7) is used to prevent the limiting PTFE sleeve (1) from loosening or being lost.

5. The control device for switching on and off a hopper flap valve according to claim 1, characterized in that, The surface roughness Ra of the adjusting wheel (2) is not less than 6.

3.

6. The control device for switching on and off a hopper flap valve according to claim 1, characterized in that, The lower end of the adjusting wheel (2) has a curved surface structure.

7. The control device for switching on and off a hopper flap valve according to claim 1, characterized in that, The support (3) is made of 316 stainless steel and has a smooth surface.

8. The control device for switching on and off a hopper flap valve according to claim 1, characterized in that, The polishing grade of the support (3) is not lower than A2 grade.

9. The control device for switching on and off a hopper flap valve according to claim 1, characterized in that, The threaded rod is made of brass.

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