Butterfly valve capable of preventing accidental touch

Abstract

The utility model relates to fluid control equipment technical field discloses a butterfly valve of preventable false touch, include: valve body, the valve rod is rotationally arranged on the valve body, the lower half portion of valve rod is fixedly connected with the butterfly plate, the upper portion of valve body is fixedly connected with the fixed link, the fixed link center sets up round through -hole, the upper half portion of valve rod is connected with the fixed pin and penetrates round through -hole, the upper portion of fixed link is fixedly connected with the valve cover, one side of valve cover is equipped with handle and drives valve rod rotation, the other side is fixedly connected with the support rod, the lock mechanism is set up on the support rod and with handle can detachable connection. Compared with prior art, the utility model sets up double locking device, greatly improved the reliability of preventable false touch, effectively avoided the production accident, fluid leakage or process interruption etc.

Description

Technical Field

[0001] This utility model relates to the field of fluid control equipment technology, specifically to a butterfly valve that can prevent accidental activation. Background Technology

[0002] A butterfly valve is a simple regulating valve that is widely used in various industrial pipelines, mainly for cutting off or regulating fluid flow in pipelines.

[0003] Existing butterfly valves typically have their operating handles or actuators directly exposed. In areas with high personnel traffic or dense equipment, the handles are easily subject to accidental impacts or human error, lacking effective protective measures. Improper operation may alter the valve's state, leading to production accidents, fluid leaks, or process interruptions, posing safety hazards. Utility Model Content

[0004] (I) Technical Issues

[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a butterfly valve that can prevent accidental contact. It is equipped with a double locking device, which greatly improves the reliability of preventing accidental contact and effectively avoids production accidents, fluid leakage or process interruption caused by accidental collisions.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0008] A butterfly valve that can prevent accidental activation includes a valve body, a valve stem rotatably mounted on the valve body, a butterfly plate fixedly connected to the lower half of the valve stem, a fixing rod fixedly connected to the upper part of the valve body, a circular through hole provided in the center of the fixing rod, and a fixing pin connected to the upper half of the valve stem through the circular through hole.

[0009] A valve cover is fixedly attached to the top of the fixed rod. A handle for driving the valve rod to rotate is provided on one side of the valve cover, and a support rod is fixedly attached to the other side. A locking mechanism is provided on the support rod and is detachably connected to the handle.

[0010] As an improvement, a rectangular blind hole is provided on the side wall of the valve stem, and a rectangular through hole is correspondingly provided on the side wall of the fixing rod. One end of the fixing pin passes through the rectangular through hole and is inserted into the interior of the rectangular blind hole to achieve fixed positioning of the valve stem.

[0011] As an improvement, a handle is provided at one end of the fixing pin located outside the rectangular through hole.

[0012] As an improvement, the locking mechanism includes a ring rotatably mounted on a support rod, a connecting post fixedly connected to the ring, and a latch fixedly connected to the other end of the connecting post.

[0013] As an improvement, the latch is a rectangular frame formed by bending a ring-shaped member with a circular cross-section. One side of the frame is broken to form a first end and a second end, and both the first end and the second end are provided with external threads. An unlocking ring is provided at the broken position and is threadedly connected to the first end and the second end to close or open the broken position.

[0014] As an improvement, the unlocking ring is provided with several arc-shaped grooves.

[0015] As an improvement, a circular display panel is provided above the valve cover to display the on / off status of the butterfly plate in the valve body.

[0016] (III) Technical Effects

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

[0018] 1. This utility model is equipped with a double locking device of a fixing pin and a locking mechanism, which greatly improves the reliability of preventing accidental activation. Even if one lock is accidentally opened or damaged, the other lock can still provide protection.

[0019] 2. This utility model is equipped with a circular display platform, which allows for clear observation of the butterfly valve device's opening and closing status, facilitating management and inspection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a partially enlarged structural schematic diagram of this utility model.

[0022] Figure 3 This is a partial structural schematic diagram of the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of the latch of this utility model. Figure 1 .

[0024] Figure 5 This is a schematic diagram of the structure of the latch of this utility model. Figure 2 .

[0025] As shown in the figure: 1. Valve body; 2. Valve stem; 3. Butterfly plate; 4. Fixing rod; 5. Fixing pin; 6. Valve cover; 7. Handle; 8. Support rod; 9. Circular through hole; 10. Rectangular blind hole; 11. Rectangular through hole; 12. Handle; 13. Circular ring; 14. Lock; 15. Unlocking ring; 16. First end; 17. Second end. Detailed Implementation

[0026] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] A butterfly valve that prevents accidental activation, such as Figure 1 , 2 As shown, it includes:

[0029] A valve body 1 is provided with a valve stem 2 rotatably mounted on the valve body 1. A butterfly plate 3 is fixedly connected to the lower half of the valve stem 2. A fixing rod 4 is fixedly connected to the upper part of the valve body 1. A circular through hole 9 is provided in the center of the fixing rod 4. The upper half of the valve stem 2 passes through the circular through hole 9 and is connected to a fixing pin 5.

[0030] like Figure 3 As shown, a rectangular blind hole 10 is provided on the side wall of the valve stem 2, and a rectangular through hole 11 is correspondingly provided on the side wall of the fixing rod 4. One end of the fixing pin 5 passes through the rectangular through hole 11 and is inserted into the interior of the rectangular blind hole 10 to fix and limit the valve stem 2, thereby fundamentally restricting the rotation of the valve stem 2 and forming the first layer of reliable protection against accidental contact. A handle 12 is provided at the end of the fixing pin 5 located outside the rectangular through hole 11, which makes it easy for the operator to grip and apply force, improving the convenience of operation.

[0031] A valve cover 6 is fixedly attached above the fixed rod 4. A circular display platform, made of transparent glass, is provided above the valve cover 6, allowing the butterfly plate 3 to be seen in its open / closed state within the valve body 1. A handle 7 for driving the valve rod 2 is located on one side of the valve cover 6. The upper end of the valve rod 2 extends to the valve cover 6 and is fixedly attached to a worm gear. A worm gear meshes with the worm gear on the horizontally placed handle 7. Rotating the handle 7 drives the worm gear to rotate, thus rotating the valve rod 2. This is a common driving mechanism for traditional butterfly valves and is existing technology; therefore, the detailed driving mechanism is not shown in the attached drawings. A support rod 8 is fixedly attached to the other side of the valve cover 6. A locking mechanism is provided on the support rod 8 and detachably connected to the handle 7. The locking mechanism includes a ring 13 rotatably mounted on the support rod 8, with a connecting post fixedly attached to the ring 13. A latch 14 is fixedly attached to the other end of the connecting post. Figure 4 , 5 As shown, the latch 14 is a rectangular frame formed by bending a ring-shaped component with a circular cross-section. One side of the frame is broken to form a first end 16 and a second end 17, and both the first end 16 and the second end 17 are provided with external threads. An unlocking ring 15 is provided at the broken position and is threadedly connected to the first end 16 and the second end 17 to close or open the broken position. The latch can be closed and opened by turning the unlocking ring 15, which constitutes a second anti-accidental contact mechanism. Together with the fixing pin 5, it forms a double insurance, which greatly enhances the safety. In addition, the unlocking ring 15 is provided with several arc-shaped grooves, which increases the friction and makes it easy to apply force by hand.

[0032] In the specific implementation of this embodiment:

[0033] When the valve needs to be locked, insert the fixing pin 5 into the rectangular through hole 11 of the fixing rod 4 and into the rectangular blind hole 10 of the valve stem 2 to achieve mechanical locking of the valve stem. At the same time, place the handle 7 inside the latch 14 and tighten the unlocking ring 15. The unlocking ring 15 connects the first end 16 and the second end 17, making the latch 14 a complete closed frame, thus locking the handle 7. When unlocking is required, rotate the unlocking ring 15 in the opposite direction to disengage it from the first end 16. The disconnected part of the latch 14 opens, and the handle 7 can be removed from the latch 14 by rotating the ring 13. At the same time, pull the fixing pin 5 out of the valve stem 2 and the fixing rod 4 to achieve rotation of the valve stem 2 and drive the butterfly plate 3. At this time, the valve can be seen to be in the open state through the circular display on the valve cover 6.

[0034] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0035] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A butterfly valve resistant to accidental activation, comprising a valve body (1), a valve stem (2) rotatably mounted on the valve body (1), and a butterfly plate (3) fixedly connected to the lower half of the valve stem (2), characterized in that: A fixing rod (4) is fixedly connected to the upper part of the valve body (1). A circular through hole (9) is provided in the center of the fixing rod (4). The upper part of the valve stem (2) passes through the circular through hole (9) and is connected to a fixing pin (5). A valve cover (6) is fixedly attached above the fixed rod (4). A handle (7) for driving the valve rod (2) to rotate is provided on one side of the valve cover (6), and a support rod (8) is fixedly attached to the other side. A locking mechanism is provided on the support rod (8) and is detachably connected to the handle (7).

2. The butterfly valve with anti-accidental activation capability according to claim 1, characterized in that: A rectangular blind hole (10) is provided on the side wall of the valve stem (2), and a rectangular through hole (11) is provided on the side wall of the fixing rod (4). One end of the fixing pin (5) passes through the rectangular through hole (11) and is inserted into the interior of the rectangular blind hole (10) to achieve the fixed positioning of the valve stem (2).

3. The butterfly valve with anti-accidental activation capability according to claim 2, characterized in that: The fixing pin (5) is provided with a handle (12) at one end located outside the rectangular through hole (11).

4. The butterfly valve with anti-accidental activation capability according to claim 1, characterized in that: The locking mechanism includes a ring (13) rotatably mounted on a support rod (8), a connecting post fixedly connected to the ring (13), and a latch (14) fixedly connected to the other end of the connecting post.

5. A butterfly valve with anti-accidental activation capability according to claim 4, characterized in that: The latch (14) is a rectangular frame formed by bending a ring-shaped member with a circular cross-section. One side of the frame is broken to form a first end (16) and a second end (17), and both the first end (16) and the second end (17) are provided with external threads. An unlocking ring (15) is provided at the broken position and is threadedly connected to the first end (16) and the second end (17) to close or open the broken position.

6. A butterfly valve with anti-accidental activation capability according to claim 5, characterized in that: The unlocking ring (15) is provided with several arc-shaped grooves.

7. A butterfly valve with anti-accidental activation capability according to claim 1, characterized in that: A circular display panel is provided above the valve cover (6) to display the opening and closing status of the butterfly plate (3) in the valve body (1).

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