Tank bottom valve

Abstract

The utility model relates to a tank bottom valve which comprises a valve body, a valve clack, a valve rod, a valve handle and a transmission mechanism, wherein the valve clack is arranged in the valve body; one end of the valve rod is connected with the valve clack; the valve handle is arranged at the outer side part of the valve body; the valve handle drives the valve rod through the transmission mechanism, so that the valve clack abuts against the inner wall of the valve body to achieve sealing. According to the tank bottom valve, the valve handle is arranged on the outer side of the valve body, an operator can operate the valve on the side face of the storage tank through the transmission mechanism, the problem that a traditional tank bottom valve needs to bend down or squat in a narrow space for operation is solved, and the use requirements of high-cleanliness industries such as biopharmacy are met.

Description

Technical Field

[0001] This utility model relates to the field of valve devices, and in particular to a bottom valve for tanks. Background Technology

[0002] In industrial production such as biopharmaceuticals and food, bottom valves are widely used for liquid discharge control in storage tanks due to their advantages of eliminating dead zones, leaving no residue, and providing excellent sealing. Currently, bottom valves used in industrial production are typically installed at the center of the bottom of circular storage tanks, requiring operators to directly operate the valve from the bottom or side of the tank. Figure 1 and Figure 2 As shown.

[0003] However, the existing tank bottom valve structure has some technical problems. First, due to the limited height of the tank base, operators need to bend over or squat to operate it, which can easily lead to operator fatigue. Second, operating the valve in an unnatural posture for a long time in a confined space not only reduces work efficiency but may also have adverse effects on the operator's health. In addition, traditional tank bottom valves require multiple rotations to fully open or close, which cannot provide a quick response in emergency situations.

[0004] While some improvements have emerged in existing technologies, these solutions are primarily designed for non-clean container environments such as chemical plants and are not suitable for fields with high cleanliness requirements, such as biopharmaceuticals. Furthermore, most of these improvements do not address the issue of ease of operation, still requiring operators to perform complex maneuvers in confined spaces. Utility Model Content

[0005] The purpose of this utility model is to provide a bottom valve for tanks, which solves the technical problem that existing bottom valves are inconvenient to operate in confined spaces.

[0006] To solve the above-mentioned technical problems, this utility model provides a bottom valve, including a valve body, a valve disc disposed inside the valve body, a valve stem connected to the valve disc at one end, a valve handle disposed on the outer side of the valve body, and a transmission mechanism connecting the valve handle and the other end of the valve stem;

[0007] The valve handle drives the valve stem through the transmission mechanism, causing the valve disc to abut against the inner wall of the valve body to achieve a seal.

[0008] Furthermore, the top of the valve body is provided with an opening for connection to the storage tank; a pipe is provided on one side of the valve body, and the other end of the valve stem is connected to the transmission mechanism through the pipe; a discharge port is provided on the other side of the valve body.

[0009] Furthermore, the inner wall of the valve body is provided with a first boss, which contacts the side end face of the valve disc.

[0010] Furthermore, the valve disc is configured to be arc-shaped, and one end of the valve stem is connected to the inner convex surface of the valve disc.

[0011] Furthermore, the inner wall of the valve body is also provided with a second boss, and a channel is formed between the outer convex surface of the valve disc and the second boss.

[0012] Furthermore, the outer convex surface of the valve disc is made of an elastic material.

[0013] Furthermore, the transmission mechanism includes a connecting rod and a universal joint, one end of the connecting rod is connected to the other end of the valve stem through the universal joint, and the other end of the connecting rod is connected to the valve handle.

[0014] Furthermore, the connecting rod is provided with a support rod for fixing the position of the connecting rod.

[0015] Furthermore, the number of connecting rods is not less than 1.

[0016] Furthermore, the number of the universal joints is not less than 1.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] This utility model, through its structural design of setting a valve handle on the outer wall of the valve body and using a transmission mechanism to connect the valve handle to the valve stem, enables operators to operate the valve from the side of the storage tank, avoiding the need to bend over or squat down in a confined space, thus improving operational convenience and reducing the labor intensity of operators.

[0019] Furthermore, the use of a universal joint transmission mechanism with support rods on the connecting rods ensures not only the stability and reliability of the transmission mechanism but also enables precise valve control. Simultaneously, the arc-shaped valve disc and the use of elastic materials improve the sealing effect, meeting the high-cleanliness requirements of industries such as biopharmaceuticals. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the existing side-operated manual tank bottom valve;

[0021] Figure 2 This is a schematic diagram of the existing bottom-operated manual tank bottom valve;

[0022] Figure 3 This is a schematic diagram of the bottom valve in one embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram showing the open state of the bottom valve in one embodiment of the present invention;

[0024] Figure 5This is a schematic diagram of the closed state of the bottom valve in one embodiment of the present invention.

[0025] Reference numerals: 1. Valve body; 2. Valve disc; 3. Valve stem; 4. Valve handle; 5. Valve body discharge port; 6. Connecting rod; 7. Universal joint; 101. Channel; 601. Hanger rod. Detailed Implementation

[0026] The following is a more detailed description of a tank bottom valve according to the present invention, with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.

[0027] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0028] like Figures 3 to 5 As shown in the figure, this utility model embodiment proposes a bottom valve for a tank, including a valve body 1, a valve disc 2, a valve stem 3, a valve handle 4, and a transmission mechanism. The valve disc 2 is disposed inside the valve body 1, one end of the valve stem 3 is connected to the valve disc 2, the valve handle 4 is disposed on the outer side of the valve body, and the transmission mechanism connects the valve handle 4 and the other end of the valve stem 3. The valve handle 4 drives the valve stem 3 through the transmission mechanism, so that the valve disc 2 abuts against the inner wall of the valve body 1 to achieve a seal.

[0029] Specifically, the valve body 1 is connected to the storage tank, and the top of the valve body 1 has an opening for connection to the storage tank. A pipe is provided on one side of the valve body 1, and the other end of the valve stem 3 is connected to the transmission mechanism through the pipe. The other side of the valve body 1 has a valve body discharge port 5 for discharging the product.

[0030] In this embodiment, the valve disc 2 adopts an arc-shaped structural design, and one end of the valve stem 3 is fixedly connected to the concave surface of the valve disc 2 to drive the valve disc 2 to move.

[0031] In a specific embodiment, the inner wall of the valve body 1 is provided with a first boss and a second boss. The first boss contacts the side end face of the valve disc 2; a channel 101 is formed between the outer convex surface of the valve disc 2 and the second boss, and the outer convex surface of the valve disc 2 (i.e., the contact surface between the valve disc 2 and the valve body 1) is made of an elastic material, so that the valve disc 2 has a certain deformation, thereby making the valve disc 2 fit more tightly with the valve body 1, and the better the effect of preventing product overflow.

[0032] In this embodiment, the transmission mechanism includes a connecting rod 6 and a universal joint 7. One end of the connecting rod 6 is connected to the other end of the valve stem 3 via the universal joint 7, and the other end of the connecting rod 6 is fixedly connected to the valve handle 4.

[0033] In addition, a support rod 601 is provided on the connecting rod 6 to fix the position of the connecting rod 6, which can realize directional operation and ensure the stability of transmission. The connection between the universal joint 7 and the valve stem 3 and the connecting rod 6 can be made using fasteners such as square pins, keys or bolts. The specific connection method is a common practice for those skilled in the art and will not be described in detail.

[0034] It should be noted that the number of connecting rods 6 can be increased accordingly based on the number of connecting rods 6, and the number of universal joints 7 can be increased accordingly based on the number of connecting rods 6.

[0035] The working process of this utility model is as follows:

[0036] like Figure 4 As shown, when the valve needs to be closed, the operator holds the valve handle 4 and rotates it clockwise. This drives the universal joint 7 to rotate via the connecting rod 6, thereby driving the valve stem 3 so that the valve disc 2 fits tightly against the second boss. In other words, the volume of the channel 101 is reduced until it is completely closed, thereby preventing the product from being discharged through the valve body discharge port 5.

[0037] like Figure 5 As shown, when the valve needs to be opened, the operator holds the valve handle 4 and rotates it counterclockwise. The universal joint 7 is driven to rotate through the connecting rod 6, thereby driving the valve stem 3 and causing the valve disc 2 to gradually move away from the second boss. That is, the volume of the channel 101 is increased, and the product can be smoothly discharged through the valve body discharge port 5.

[0038] In summary, this utility model, by setting the valve handle 4 on the outside of the valve body 1 and employing a transmission mechanism composed of the connecting rod 6 and the universal joint 7, allows operators to operate the valve from the side of the storage tank, avoiding the problem of traditional bottom valves requiring bending or squatting in confined spaces. Simultaneously, by setting a support rod 601 on the connecting rod 6, the stability of the transmission mechanism is ensured, improving the accuracy of valve operation. Furthermore, the valve disc 2 adopts an arc-shaped design and uses an elastic material, which not only improves the sealing effect but also meets the requirements of high-cleanliness industries such as biopharmaceuticals.

[0039] 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.

Claims

1. A bottom valve for a tank, characterized in that, It includes a valve body (1), a valve disc (2) disposed inside the valve body (1), a valve stem (3) connected to the valve disc (2) at one end, a valve handle (4) disposed on the outer side of the valve body (1), and a transmission mechanism connecting the valve handle (4) and the other end of the valve stem (3). The valve handle (4) drives the valve stem (3) through the transmission mechanism, so that the valve disc (2) abuts against the inner wall of the valve body (1) to achieve a seal.

2. The tank bottom valve as described in claim 1, characterized in that, The valve body (1) has an opening at the top for connection with the storage tank; a pipe is provided on one side of the valve body (1), and the other end of the valve stem (3) is connected to the transmission mechanism through the pipe; a discharge port is provided on the other side of the valve body (1).

3. The tank bottom valve as described in claim 1, characterized in that, The inner wall of the valve body (1) is provided with a first protrusion, which is in contact with the side end face of the valve disc (2).

4. The tank bottom valve as described in claim 1, characterized in that, The valve disc (2) is configured to be arc-shaped, and one end of the valve stem (3) is connected to the inner convex surface of the valve disc (2).

5. The tank bottom valve as described in claim 4, characterized in that, The inner wall of the valve body (1) is also provided with a second protrusion, and a channel (101) is formed between the outer convex surface of the valve disc (2) and the second protrusion.

6. The tank bottom valve as described in claim 4, characterized in that, The outer convex surface of the valve disc (2) is made of elastic material.

7. The tank bottom valve as described in claim 1, characterized in that, The transmission mechanism includes a connecting rod (6) and a universal joint (7). One end of the connecting rod (6) is connected to the other end of the valve stem (3) through the universal joint (7), and the other end of the connecting rod (6) is connected to the valve handle (4).

8. The tank bottom valve as described in claim 7, characterized in that, The connecting rod (6) is provided with a support rod for fixing the position of the connecting rod (6).

9. The tank bottom valve as described in claim 7, characterized in that, The number of the connecting rods (6) is not less than 1.

10. The tank bottom valve as described in claim 9, characterized in that, The number of the universal joints (7) is not less than 1.

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