Ball valve with mistaken opening prevention structure

Abstract

The utility model discloses a ball valve with a mistaken opening prevention structure, and relates to the technical field of ball valves. Comprising a valve body, the inner wall of the valve body is rotationally connected with a ball body, the inner wall of the top of the valve body is fixedly connected with a fixing block, and a sealing ring is clamped to the inner wall of the fixing block; the outer wall of the limiting assembly is fixedly connected with the outer wall of the ball body, and the limiting assembly is used for limiting the position of the ball body in a friction mode; the outer wall of the pulling assembly is in sliding connection with the inner wall of the top of the valve body, through the arrangement of the pulling assembly, an operator only needs to rotate out a handle and hold the handle to apply upward pulling force to drive the sliding block to slide, then the gear sleeve and the gear column are meshed through simple sliding block rotating operation, and then the ball body can rotate to adjust the fluid circulation state; the operation mode of the ball valve is easier to master by operators, the operation difficulty is reduced, and the purpose of the ball valve with the mistaken opening prevention structure is achieved.

Description

Technical Field

[0001] This utility model relates to the field of ball valve technology, specifically to a ball valve with an anti-misoperation structure. Background Technology

[0002] In many industrial fields and various fluid transport systems, ball valves, as a commonly used valve device, play a vital role. They can control the flow and volume of fluids. However, with the continuous development of industrial production and the increasing complexity of application scenarios, traditional ball valves have gradually revealed some problems in actual use that make them difficult to meet modern needs, and they urgently need to be improved.

[0003] Traditional ball valves have a relatively complex operating structure, involving the coordinated action of multiple components and relatively precise operating steps. When adjusting the fluid flow, the operator needs to perform a series of complex operations. This makes it easy for the operator to accidentally touch the valve due to momentary negligence or lack of familiarity with the operating procedure. This may cause the ball to rotate unexpectedly, resulting in a sudden change in fluid flow or the valve to open or close unexpectedly. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a ball valve with an anti-misoperation structure, comprising: a valve body, wherein a ball is rotatably connected to the inner wall of the valve body, a fixing block is fixedly connected to the inner wall of the top of the valve body, and a sealing ring is snapped into the inner wall of the fixing block; a limiting component, wherein the outer wall of the limiting component is fixedly connected to the outer wall of the ball, and the limiting component is used to limit the position of the ball by friction; a pulling component, wherein the outer wall of the pulling component is slidably connected to the inner wall of the top of the valve body, and the pulling component is used to change the position of the ball inside the valve body by rotation; the pulling component includes a slider, wherein a toothed sleeve is fixedly connected to the inner wall of the slider, a toothed column is slidably connected to the inner wall of the toothed sleeve, a toothed block is fixedly connected to the top of the toothed column, and the toothed block is arranged in a ring along the central axis of the toothed column; a rotating ring is slidably connected to the bottom of the slider through a limiting rod, and the outer wall of the limiting rod is fixedly connected to the top of the rotating ring; a tension spring is fixedly connected to the top of the rotating ring, and the tension spring is arranged in a ring along the central axis of the rotating ring.

[0005] Preferably, the end of the tension spring away from the rotating ring is fixedly connected to the bottom of the slider, the end of the limiting rod away from the rotating ring is slidably connected to the bottom of the slider through a fixed cylinder, the outer wall of the limiting rod is slidably connected to the fixed cylinder, the outer wall of the toothed column is slidably connected to the outer wall of the sealing ring, and the outer wall of the toothed column is slidably connected to the inner wall of the fixed block.

[0006] Preferably, a handle is rotatably connected to the inner wall of the top of the slider, the outer wall of the slider is slidably connected to the inner wall of the valve body, the bottom of the toothed column is fixedly connected to the top of the ball, the inner wall of the toothed sleeve is in contact with the toothed block at the top of the toothed column, and the toothed sleeve matches the toothed block.

[0007] Preferably, the limiting component includes connecting columns, and the connecting columns are arranged in a circular array along the central axis of the fixing block. A connecting plate is fixedly connected to the bottom of the connecting column, and a reinforcing rib is fixedly connected to the outer wall of the connecting plate. A fixing ring is fixedly connected to the top of the sphere.

[0008] Preferably, a resistance rod is fixedly connected to the top of the connecting plate, and the resistance rod is arranged in a ring along the central axis of the connecting plate. A baffle is fixedly connected to the top of the connecting column. The bottom of the connecting plate is in contact with the top of the fixing ring. Both the bottom of the connecting plate and the top of the fixing ring are provided with slots to increase the friction between the connecting plate and the fixing ring. The top of the resistance rod is fixedly connected to the bottom of the fixing block. The outer wall of the connecting plate is slidably connected to the inner wall of the valve body. The inner wall of the valve body is slidably connected to the outer wall of the connecting column. The outer wall of the baffle is in contact with the top of the slider.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. By setting up a pull component, the operator only needs to turn the handle out and hold it to apply an upward pulling force to drive the slider to slide. Then, by simply rotating the slider, the toothed sleeve and the toothed column are engaged, which can realize the rotation of the ball to adjust the fluid flow. Compared with the operation of some valves with complex structures, the operation of this ball valve is easier for the operator to master, reducing the difficulty of operation, reducing the possibility of misoperation due to unfamiliarity with the operation, and improving work efficiency.

[0011] 2. By setting a limiting component, this utility model can limit the rotation of the ball under unexpected conditions through the frictional resistance generated by the contact between the connecting plate and the fixed ring and the connection between the resistance rod and the fixed block. Even when the ball valve is subjected to unexpected external forces such as collisions and vibrations, it can ensure that the valve remains in its current state, preventing accidental fluid leakage or flow control failure due to accidental opening, thus ensuring the safety and stability of the fluid delivery system. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the sealing ring of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the pull component of this utility model;

[0016] Figure 5 This is an exploded view of the limiting component of this utility model.

[0017] In the diagram: 1. Valve body; 2. Pulling assembly; 3. Fixing block; 4. Limiting assembly; 5. Ball; 6. Sealing ring; 21. Slider; 22. Handle; 23. Gear post; 24. Limiting rod; 25. Tension spring; 26. Rotary ring; 27. Gear sleeve; 41. Fixing ring; 42. Connecting post; 43. Connecting plate; 44. Baffle; 45. Resistance rod. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0019] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a ball valve with an anti-misoperation structure, comprising: a valve body 1, a ball 5 rotatably connected to the inner wall of the valve body 1, a fixing block 3 fixedly connected to the inner wall of the top of the valve body 1, and a sealing ring 6 snapped into the inner wall of the fixing block 3; a limiting component 4, the outer wall of the limiting component 4 being fixedly connected to the outer wall of the ball 5, the limiting component 4 being used to limit the position of the ball 5 by friction; and a pulling component 2, the outer wall of the pulling component 2 being slidably connected to the inner wall of the top of the valve body 1, the pulling component 2 being used to change the position of the ball 5 inside the valve body 1 by rotation; the pulling component 2 includes a sliding... Block 21, the inner wall of slider 21 is fixedly connected to a toothed sleeve 27, the inner wall of toothed sleeve 27 is slidably connected to a toothed column 23, the bottom of slider 21 is slidably connected to a rotating ring 26 through a limiting rod 24, and the outer wall of the limiting rod 24 is fixedly connected to the top of the rotating ring 26. The top of the rotating ring 26 is fixedly connected to a tension spring 25, and the tension spring 25 is arranged in a ring along the central axis of the rotating ring 26. When the operator releases the handle 22, the tension spring 25 releases its elastic potential energy, which will pull slider 21 downward to slide and reset, so that the toothed sleeve 27 and the toothed column 23 return to their initial relative positions, that is, the toothed block on the toothed sleeve 27 and the toothed column 23 separate.

[0020] One end of the tension spring 25 away from the rotating ring 26 is fixedly connected to the bottom of the slider 21. One end of the limiting rod 24 away from the rotating ring 26 is slidably connected to the bottom of the slider 21 through a fixed cylinder. The outer wall of the toothed column 23 is slidably connected to the outer wall of the sealing ring 6. The outer wall of the toothed column 23 is slidably connected to the inner wall of the fixed block 3. The handle 22 is rotatably connected to the inner wall of the top of the slider 21. The outer wall of the slider 21 is slidably connected to the inner wall of the valve body 1. The bottom of the toothed column 23 is fixedly connected to the top of the ball 5. The inner wall of the toothed sleeve 27 is in contact with the toothed block at the top of the toothed column 23. Since the toothed sleeve 27 matches the toothed block at the top of the toothed column 23, when the toothed sleeve 27 slides to the toothed block, the toothed sleeve 27 can mesh with the toothed block. It should be noted that if the toothed sleeve 27 and the toothed block cannot mesh directly, simply rotate the slider 21 to adjust the position of the toothed sleeve 27, which will facilitate the meshing of the toothed sleeve 27 with the toothed block.

[0021] The limiting component 4 includes a connecting post 42, which is arranged in a ring along the central axis of the fixing block 3. A connecting plate 43 is fixedly connected to the bottom of the connecting post 42. A fixing ring 41 is fixedly connected to the top of the ball 5. A resistance rod 45 is fixedly connected to the top of the connecting plate 43, and the resistance rod 45 is arranged in a ring along the central axis of the connecting plate 43. A baffle 44 is fixedly connected to the top of the connecting post 42. The bottom of the connecting plate 43 is in contact with the top of the fixing ring 41. The contact relationship between the connecting plate 43 and the fixing ring 41 will generate a large frictional resistance, which will hinder the rotation of the ball 5 and prevent the ball valve from rotating unexpectedly. The top of the resistance rod 45 is fixedly connected to the bottom of the fixing block 3. The outer wall of the connecting plate 43 is slidably connected to the inner wall of the valve body 1. The inner wall of the valve body 1 is slidably connected to the outer wall of the connecting post 42. The outer wall of the baffle 44 is in contact with the top of the slider 21.

[0022] Working principle:

[0023] The entire ball valve is mainly composed of valve body 1, ball 5, fixed block 3, sealing ring 6, limiting component 4, and pulling component 2. The valve body 1, as the main frame of the ball valve, provides the installation foundation and housing space for other components, ensuring that the fluid can flow in the expected way inside and ensuring the sealing of the overall structure. The ball 5 is rotatably connected to the inner wall of the valve body 1. It is the key component for controlling the flow and flow rate of the fluid. The opening, closing or adjustment of the fluid passage is realized by its different rotation positions inside the valve body 1.

[0024] The fixing block 3 is fixedly connected to the inner wall of the top of the valve body 1. Its main function is to provide installation support for other related components and to cooperate with the sealing ring 6 to enhance the sealing of the top area of ​​the valve body 1 and prevent fluid leakage from this part. The limiting component 4 is fixedly connected to the outer wall of the ball 5. Its function is to limit the position of the ball 5 in a specific way to prevent the ball 5 from rotating arbitrarily under unexpected circumstances. The pulling component 2 is located on the inner wall of the top of the valve body 1 and is slidably connected to it. It is the operating component that realizes the change of the position of the ball 5 inside the valve body 1. It drives the ball 5 to rotate through a specific action mode, thereby playing a role in preventing accidental opening and regulating the flow state of the fluid.

[0025] The pulling assembly 2 consists of components such as a slider 21, a toothed sleeve 27, a toothed column 23, a limiting rod 24, a rotating ring 26, a tension spring 25, and a handle 22. Its main function is to drive the ball 5 to rotate, changing its position within the valve body 1. When the ball valve needs to be operated to regulate fluid flow, the operator first needs to turn the handle 22, grasp it, and apply an upward pulling force. This causes the slider 21 to slide upward via the handle 22. The inner wall of the slider 21 is fixedly connected to the toothed sleeve 27, and the inner wall of the toothed sleeve 27 is slidably connected to the toothed column 23. The bottom of the toothed column 23 is fixedly connected to the top of the ball 5. During the up-and-down movement of the slider 21, the toothed sleeve 27 moves along with the slider 21. Because the toothed sleeve 27 and the toothed column 23... The top toothed blocks are matched, so when the toothed sleeve 27 slides to the toothed block, the toothed sleeve 27 can mesh with the toothed block. It should be noted that if the toothed sleeve 27 and the toothed block cannot mesh directly, simply rotate the slider 21 to adjust the position of the toothed sleeve 27, which will facilitate the meshing of the toothed sleeve 27 and the toothed block. After the toothed sleeve 27 meshes with the toothed block, the position of the ball 5 can be changed by rotating the slider 21. The rotation of the toothed sleeve 27 will drive the toothed column 23 to rotate through the interaction between the teeth. Since the toothed column 23 is fixedly connected to the ball 5, the rotation of the toothed column 23 will directly drive the ball 5 to rotate in the inner wall of the valve body 1, thereby changing the position of the ball 5 in the valve body 1 and realizing the adjustment of the opening degree of the fluid channel.

[0026] During the up-and-down sliding of slider 21, its bottom is slidably connected to rotating ring 26 via limiting rod 24, and the outer wall of limiting rod 24 is fixedly connected to the top of rotating ring 26. A tension spring 25 is fixedly connected to the top of rotating ring 26, and the tension spring 25 is distributed in a ring array along the central axis of rotating ring 26. The end of tension spring 25 away from rotating ring 26 is fixedly connected to the bottom of slider 21. When slider 21 slides upward, it stretches tension spring 25, which stores elastic potential energy. When the operator releases handle 22, tension spring 25 releases elastic potential energy, which pulls slider 21 downward to reset, so that tooth sleeve 27 and tooth post 23 return to their initial relative positions, that is, the toothed blocks on tooth sleeve 27 and tooth post 23 separate, so that the position of ball 5 cannot be directly adjusted, and the operation is delayed until the next operation.

[0027] The limiting component 4 consists of connecting posts 42, connecting plates 43, resistance rods 45, fixing rings 41, and baffles 44. Its main function is to limit the position of the ball 5. The connecting posts 42 are arranged in a ring array along the central axis of the fixing block 3. The bottom of the connecting posts 42 is fixedly connected to the connecting plates 43, and the top of the connecting posts 42 is fixedly connected to the baffles 44. The top of the ball 5 is fixedly connected to the fixing rings 41. The bottom of the connecting plates 43 is in contact with the top of the fixing rings 41. The contact between the connecting plates 43 and the fixing rings 41 limits the rotation of the ball 5.

[0028] Meanwhile, a resistance rod 45 is fixedly connected to the top of the connecting plate 43, and the resistance rod 45 is arranged in a ring array along the central axis of the connecting plate 43. The top of the resistance rod 45 is fixedly connected to the bottom of the fixed block 3. When the ball 5 is subjected to an unexpected external force and attempts to rotate, such as due to external collisions or vibrations, due to the relationship between the resistance rod 45 and the fixed block 3, as well as the contact relationship between the connecting plate 43 and the fixed ring 41, a large frictional resistance will be generated, which will hinder the rotation of the ball 5, thereby preventing the ball valve from rotating unexpectedly and ensuring the safety and stability of the fluid conveying system. Furthermore, a baffle 44 is fixed to the top of the connecting column 42. Thus, when the slider 21 slides upward and adjusts the position of the ball 5, the slider 21 presses the baffle 44 upward, thereby causing the connecting column 42 on the baffle 44 to drive the connecting plate 43 to slide upward, so that the connecting plate 43 can be separated from the fixed ring 41.

[0029] During the entire operation of the ball valve, the valve body 1, ball 5, fixed block 3, sealing ring 6, limit assembly 4, and pull assembly 2 work together closely. When the ball valve is in normal operation to regulate the fluid flow, the operator rotates the handle 22 of the pull assembly 2, which drives the slider 21 to slide. Then, through the transmission between the toothed sleeve 27 and the toothed column 23, the ball 5 rotates, achieving precise control of the fluid channel. During this process, the tension spring 25 will extend and retract with the sliding of the slider 21, playing an auxiliary role in resetting.

[0030] When the ball valve is in a non-operating state or faces unexpected external interference, the limiting component 4 plays a role. Through the contact between the connecting plate 43 and the fixed ring 41 and the frictional resistance generated by the connection between the resistance rod 45 and the fixed block 3, the rotation of the ball 5 is restricted, preventing the ball valve from being opened accidentally.

[0031] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A ball valve with an anti-accidental opening structure, characterized in that, include: The valve body (1) has a ball (5) rotatably connected to its inner wall, and a fixing block (3) is fixedly connected to the inner wall of the top of the valve body (1). A sealing ring (6) is snapped into the inner wall of the fixing block (3). The limiting component (4) is fixedly connected to the outer wall of the ball (5). The limiting component (4) is used to limit the position of the ball (5) by friction. Pull assembly (2), the outer wall of the pull assembly (2) is slidably connected to the inner wall of the top of the valve body (1), the pull assembly (2) is used to change the position of the ball (5) inside the valve body (1) by rotation; The pulling assembly (2) includes a slider (21), a toothed sleeve (27) is fixedly connected to the inner wall of the slider (21), a toothed column (23) is slidably connected to the inner wall of the toothed sleeve (27), a rotating ring (26) is slidably connected to the bottom of the slider (21) through a limiting rod (24), and the outer wall of the limiting rod (24) is fixedly connected to the top of the rotating ring (26). A tension spring (25) is fixedly connected to the top of the rotating ring (26), and the tension spring (25) is arranged in a ring array along the central axis of the rotating ring (26).

2. A ball valve with an anti-accidental opening structure according to claim 1, characterized in that: The end of the tension spring (25) away from the rotating ring (26) is fixedly connected to the bottom of the slider (21). The end of the limiting rod (24) away from the rotating ring (26) is slidably connected to the bottom of the slider (21) through the fixed cylinder. The outer wall of the toothed column (23) is slidably connected to the outer wall of the sealing ring (6). The outer wall of the toothed column (23) is slidably connected to the inner wall of the fixing block (3).

3. A ball valve with an anti-accidental opening structure according to claim 1, characterized in that: The inner wall of the top of the slider (21) is rotatably connected to a handle (22), the outer wall of the slider (21) is slidably connected to the inner wall of the valve body (1), the bottom of the tooth column (23) is fixedly connected to the top of the ball (5), and the inner wall of the tooth sleeve (27) is in contact with the tooth block at the top of the tooth column (23).

4. A ball valve with an anti-accidental opening structure according to claim 1, characterized in that: The limiting component (4) includes a connecting post (42), and the connecting post (42) is arranged in a ring along the central axis of the fixing block (3). The bottom of the connecting post (42) is fixedly connected to a connecting plate (43), and the top of the sphere (5) is fixedly connected to a fixing ring (41).

5. A ball valve with an anti-accidental opening structure according to claim 4, characterized in that: A resistance rod (45) is fixedly connected to the top of the connecting plate (43), and the resistance rod (45) is arranged in a ring along the central axis of the connecting plate (43). A baffle (44) is fixedly connected to the top of the connecting column (42).

6. A ball valve with an anti-accidental opening structure according to claim 5, characterized in that: The bottom of the connecting plate (43) is in contact with the top of the fixing ring (41), the top of the resistance rod (45) is fixedly connected to the bottom of the fixing block (3), the outer wall of the connecting plate (43) is slidably connected to the inner wall of the valve body (1), the inner wall of the valve body (1) is slidably connected to the outer wall of the connecting column (42), and the outer wall of the baffle (44) is in contact with the top of the slider (21).

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