Ball valve and pipeline structure

Abstract

The utility model provides a ball valve and a pipeline structure, and relates to the field of control valves. The ball valve comprises a ball valve body, a ball body is arranged in the ball valve body, a ball body channel is formed in the ball body, a ball body limiting piece is arranged between the ball body and the ball valve body, a valve rod used for driving the ball body to rotate is arranged on one side of the ball body, and the end, away from the ball body, of the valve rod sequentially penetrates out of the ball body limiting piece and the ball valve body and is provided with a handle. A limiting groove is formed in the handle, and a sliding block capable of sliding in the limiting groove to enable the ball to rotate is arranged on the ball limiting piece. According to the ball valve, the limiting groove is formed in the handle, the sliding block is arranged on the ball limiting piece, the rotating angle of the ball relative to the ball valve body is limited through cooperation of the limiting groove and the sliding block, then the rotating angle of the ball is conveniently controlled, misoperation is prevented, the reliability of the valve is improved, the service life of the valve is prolonged, the maintenance process is simplified, and user experience is optimized.

Description

Technical Field

[0001] This utility model relates to the field of control valve technology, and more specifically, to a ball valve and pipeline structure. Background Technology

[0002] In known technologies, the ball valve portion does not limit the rotation angle of the ball valve handle, which increases the risk of misoperation, reduces valve life, hinders the simplification of equipment maintenance, and also reduces safety. Although the remaining ball valve portion limits the rotation angle of the ball valve handle, its structure is relatively complex, making it inconvenient to process and hindering the reduction of production costs.

[0003] Therefore, this application is hereby submitted. Utility Model Content

[0004] The purpose of this invention is to provide a ball valve and pipeline structure that can limit the rotation angle of the ball to prevent misoperation, improve the reliability and service life of the valve, simplify the maintenance process, and optimize the user experience.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a ball valve, including a ball valve body assembled from a first body and a second body. The first body is provided with a first fluid channel, and the second body is provided with a second fluid channel. A ball is provided inside the ball valve body, and a ball channel is provided on the ball, which penetrates the ball and can connect the first fluid channel and the second fluid channel. A ball limiting member is provided between the ball and the ball valve body. A valve stem for driving the ball to rotate is provided on one side of the ball. The end of the valve stem away from the ball passes through the ball limiting member and the ball valve body in sequence and is provided with a handle.

[0007] The handle is provided with a limiting groove, and the ball limiting member is provided with a slider that can slide within the limiting groove to make the ball rotate.

[0008] In an optional embodiment, the ball limiting member includes an annular portion, which is coaxially arranged with the ball valve body. The outer surface of the annular portion is in contact with the inner surface of the ball valve body, and a stabilizing ridge that can slide along the surface of the ball is provided on the inner side of the annular portion.

[0009] The annular portion is provided with a valve stem channel for the valve stem to pass through, and the slider is disposed on the valve stem channel.

[0010] In an optional embodiment, the handle includes a mounting groove for mounting the valve stem, the limiting groove being located outside the mounting groove and disposed circumferentially along the mounting groove.

[0011] In an optional embodiment, the central angle corresponding to the limiting groove is α, the central angle corresponding to the slider is β, and α-β=90°;

[0012] And / or, the mounting groove has a groove on its wall, and the valve stem has a protrusion on its side that can mate with the groove.

[0013] In an optional embodiment, a first sealing groove is provided at the position of the valve stem within the valve stem channel, and a sealing ring is provided in the first sealing groove.

[0014] In an optional embodiment, a second sealing groove is provided on the end face of the first body and the second body near the ball limiting member, and a sealing gasket is provided between the second sealing groove and the ball limiting member.

[0015] In an optional embodiment, the sealing gasket is provided with an annular boss on the side near the ball limiting member, and the end face of the ball limiting member is provided with an annular recess for cooperating with the annular boss.

[0016] In an optional embodiment, a first boss is provided on the end face of the first body that mates with the second body, and a first mating surface is provided on the first boss;

[0017] The second body has a second protrusion on its end face that mates with the first body, and the second protrusion has a second mating surface that mates with the first mating surface.

[0018] In an optional embodiment, the ball valve body, handle, valve stem, and ball limiting component are all made of a composite material of PA66 and GF.

[0019] And / or, the sphere is made of a composite material of PPS and glass mineral;

[0020] And / or, the sealing ring and sealing gasket are made of EPDM.

[0021] Secondly, this utility model provides a pipeline structure, including the ball valve described in any of the foregoing embodiments.

[0022] The beneficial effects of the ball valve and pipeline structure provided in this embodiment of the utility model include:

[0023] In this application, a limiting groove is provided on the handle and a slider is provided on the ball limiting component. Through the cooperation of the limiting groove and the slider, the angle of rotation of the ball relative to the ball valve body is limited, thereby facilitating the control of the ball's rotation angle, preventing misoperation, improving the reliability and service life of the valve, simplifying the maintenance process, and optimizing the user experience. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is an exploded view of the ball valve in this application;

[0026] Figure 2 This is a schematic diagram showing the open (left) and closed (right) states of the ball valve in this application;

[0027] Figure 3 This is a schematic diagram of the handle structure in this application;

[0028] Figure 4 This is a schematic diagram of the sphere limiting component in this application;

[0029] Figure 5 This is a schematic diagram of the structure of the first body in this application.

[0030] Icons: 100-Ball valve body; 110-First body; 111-First mating surface; 120-Second body; 130-Second sealing groove; 140-Sealing gasket; 141-Annular boss; 200-Ball; 300-Ball limiting component; 310-Slider; 320-Annular part; 330-Stabilizing ridge; 340-Annular recess; 400-Valve stem; 410-Protrusion; 420-Sealing ring; 500-Handle; 510-Limiting groove; 520-Mounting groove; 530-Groove. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they 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.

[0035] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0037] Please refer to Figure 1-4 The ball valve provided by this utility model includes a ball valve body 100 assembled from a first body 110 and a second body 120. The first body 110 is provided with a first fluid channel, and the second body 120 is provided with a second fluid channel. A ball 200 is provided inside the ball valve body 100. A ball 200 channel is provided on the ball 200, which penetrates the ball 200 and can connect the first fluid channel and the second fluid channel. A ball limiting member 300 is provided between the ball 200 and the ball valve body 100. A valve stem 400 for driving the ball 200 to rotate is provided on one side of the ball 200. The end of the valve stem 400 away from the ball 200 passes through the ball limiting member 300 and the ball valve body 100 in sequence and is provided with a handle 500.

[0038] The handle 500 is provided with a limiting groove 510, and the ball limiting member 300 is provided with a slider 310 that can slide within the limiting groove 510 to make the ball 200 rotate.

[0039] In this embodiment, the ball valve is in two states: open and closed. When the ball valve is open, the ball 200 channel connects the first fluid channel and the second fluid channel. If the ball valve needs to be adjusted to the closed state, the handle 500 needs to be rotated, causing the valve stem 400 and the ball 200 to rotate, thereby causing the ball 200 channel to rotate and disconnecting the first and second fluid channels. To limit the rotation angle of the ball 200, prevent misoperation, improve the reliability and service life of the valve, simplify the maintenance process, and optimize the user experience, a limiting groove 510 is provided on the handle 500, and a slider 310 is provided on the ball limiting member 300. Through the cooperation of the limiting groove 510 and the slider 310, the rotation angle of the ball 200 relative to the ball valve body 100 is limited, thereby facilitating the control of the ball valve's state.

[0040] It should be noted that in this embodiment, the first body 110 and the second body 120 can be fixed together by screws or other methods. Connectors are provided at the ends of the first body 110 and the second body 120 that are away from the second body 120. The specific structure of the connectors can be determined according to the usage scenario. For example, a fir-structure connector can be designed for connecting plastic pipes, a pagoda-head structure connector can be designed for connecting rubber pipes, and a VDA male connector structure can be designed for connecting VDA female connectors. The ball valve and valve stem 400, as well as the valve stem 400 and handle 500, can be fixed using interference fit, snap-fit, or other methods. This results in a simple structure and low cost. For scenarios requiring high pull-out force at the connection point, self-tapping screws or other fixing methods can be added to ensure a secure fit between the valve stem 400 and handle 500.

[0041] In an optional embodiment, the ball limiting member 300 includes an annular portion 320, which is coaxially arranged with the ball valve body 100. The outer surface of the annular portion 320 is in contact with the inner surface of the ball valve body 100, and a stabilizing ridge 330 that can slide along the surface of the ball 200 is provided on the inner side of the annular portion 320.

[0042] The annular portion 320 is provided with a valve stem 400 channel for the valve stem 400 to pass through, and the slider 310 is disposed on the valve stem 400 channel.

[0043] In this embodiment, the annular portion 320 of the sphere limiting member 300 can limit the sphere 200 and maintain its stable position, while also minimizing obstruction to the flow of fluid. Specifically, a stabilizing ridge 330 is provided inside the annular portion 320. The stabilizing ridge 330 can be an arc with a diameter adapted to the diameter of the sphere 200, so that when the sphere 200 is inside the annular portion 320, a portion of it always abuts against the stabilizing ridge 330, thereby reducing the swaying of the sphere 200 within the sphere limiting member 300.

[0044] In an optional embodiment, the handle 500 includes a mounting groove 520 for mounting the valve stem 400, and the limiting groove 510 is located outside the mounting groove 520 and is disposed circumferentially along the mounting groove 520.

[0045] When the handle 500 drives the ball 200 to rotate, the path traveled by the ball at the same position is arc-shaped. Therefore, the mounting groove 520 is set to be arc-shaped to facilitate the relative sliding of the slider 310 along the mounting groove 520.

[0046] In an optional embodiment, the central angle corresponding to the limiting groove 510 is α, and the central angle corresponding to the slider 310 is β, where α-β=90°.

[0047] If the ball valve is fully open when the slider 310 slides to contact and abut against one end face of the mounting groove 520, then the ball valve is fully closed when the slider 310 slides to contact and abut against the other end face of the mounting groove 520. Conversely, if the ball valve is fully closed when the slider 310 slides to contact and abut against one end face of the mounting groove 520, then the ball valve is fully open when the slider 310 slides to contact and abut against the other end face of the mounting groove 520. In some embodiments, an arrow or other marking may be provided on the top of the handle 500 to indicate the direction of rotation required to open and / or close the ball valve handle 500. This is helpful in determining whether the ball valve is in a fully open or fully closed state.

[0048] It should be noted that in this application, the slider 310 may or may not be arc-shaped. When the slider 310 is not arc-shaped, its corresponding central angle refers to the central angle corresponding to the length of the limiting groove 510 it occupies in the limiting groove 510.

[0049] It should also be noted that there can be one slider 310 or two sliders 310. When the size of slider 310 is small, three sliders 310 can also be set, but each slider 310 must be provided with a corresponding limit groove 510.

[0050] In an optional embodiment, the mounting groove 520 has a groove 530 on its groove wall, and the valve stem 400 has a protrusion 410 on its side that can cooperate with the groove 530.

[0051] The combination of groove 530 and protrusion 410 allows the pull-out force of handle 500 and valve stem 400 after installation to reach more than 300N, which helps to maintain a stable connection between the two.

[0052] In an optional embodiment, a first sealing groove is provided at a position within the valve stem 400 channel, and a sealing ring 420 is provided in the first sealing groove.

[0053] Specifically, there can be two or more sealing rings 420 to ensure good sealing performance of the ball valve in both open and closed states. The sealing rings 420 can be O-rings.

[0054] In optional embodiments, such as Figure 5 As shown, a second sealing groove 130 is provided on the end face of the first body 110 and the second body 120 near the ball limiting member 300, and a sealing gasket 140 is provided between the second sealing groove 130 and the ball limiting member 300.

[0055] The sealing gasket 140 can improve the sealing between the ball valve body 100 and the ball limiting member 300.

[0056] In an optional embodiment, the sealing gasket 140 is provided with an annular boss 141 on the side near the ball limiting member 300, and the end face of the ball limiting member 300 is provided with an annular recess 340 for cooperating with the annular boss 141.

[0057] This helps improve the sealing performance between the sealing gasket 140 and the ball valve body 100 and the limit rotating body.

[0058] In an optional embodiment, a first boss is provided on the end face of the first body 110 that mates with the second body 120, and a first mating surface 111 is provided on the first boss.

[0059] A second protrusion is provided on the end face of the second body 120 that mates with the first body 110, and a second mating surface is provided on the second protrusion that mates with the first mating surface 111.

[0060] The area of ​​the first mating surface 111 and the second mating surface is smaller than the area of ​​the end face of the first body 110 or the second body 120. During production, it is only necessary to control the flatness of the smaller first mating surface 111 and the second mating surface, which is beneficial to reduce the instability of the injection molding process and improve product quality.

[0061] It should be noted that the number of first mating surfaces 111 and second mating surfaces can be adjusted as needed, but each first mating surface 111 needs to be provided with a corresponding second mating surface. In some embodiments, four first mating surfaces 111 and four second mating surfaces are provided, located at the four corners of the first body 110 or the second body 120 respectively. If the first body 110 and the second body 120 are fixed together by screws, the screw holes can be provided on the corresponding mating surfaces.

[0062] In known technologies, most ball valves are metal ball valves, with PTFE (polytetrafluoroethylene) seals and stainless steel or brass valve bodies 100 and 200. Multiple metal parts are connected by threaded connections. Firstly, metal ball valves are heavy, and the metal parts are mostly manufactured using casting, forging, and machining processes, resulting in low processing efficiency. Furthermore, the metal materials are primarily SUS304, SUS316, and brass, leading to high costs. Secondly, the sealing between the metal parts and PTFE material requires high precision machining. Burrs on the metal parts can easily scratch the PTFE seals, causing leakage. Currently, most metal ball valves on the market are used in plumbing systems with lower requirements; meeting the requirements of the automotive and energy storage industries is difficult. Thirdly, metal ball valves connect to their counterparts via internal or external threads on both sides. If connection to nylon pipes is required, custom-made metal ball valves are necessary, causing inconvenience.

[0063] In an optional embodiment, the ball valve body 100, handle 500, valve stem 400, and ball limiting member 300 are all made of a composite material of PA66 and GF. For example, adding 30wt% glass fiber to polyamide 66 improves its resistance to chemicals such as coolant and lubricating oil in the thermal management system. At the same time, the material has high strength and rigidity as well as good dimensional stability, which helps these components not to deform or be damaged under complex working conditions.

[0064] In an optional embodiment, the ball 200 is made of a composite material of PPS and glass mineral, such as polyphenylene sulfide with 65 wt% glass mineral material added. Glass mineral material usually refers to a composite material containing glass fiber and mineral filler. The ball 200 made of this material has advantages such as high strength, smooth surface, and good dimensional stability of the ball 200 in high and low temperature and coolant immersion environments, which can well ensure the sealing performance of the ball valve assembly.

[0065] In an optional embodiment, the sealing ring 420 and the sealing gasket 140 are made of EPDM (Ethylen Propylene Diene Monomer).

[0066] By changing the material, the aforementioned problems of metal ball valves can be overcome.

[0067] This utility model also provides a pipeline structure, including the ball valve described in any of the foregoing embodiments.

[0068] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ball valve, characterized in that, The ball valve body includes a ball valve body assembled from a first body and a second body. The first body is provided with a first fluid channel, and the second body is provided with a second fluid channel. A ball is provided inside the ball valve body. A ball channel is provided through the ball and can connect the first fluid channel and the second fluid channel. A ball limiting member is provided between the ball and the ball valve body. A valve stem for driving the ball to rotate is provided on one side of the ball. The end of the valve stem away from the ball passes through the ball limiting member and the ball valve body in sequence and is provided with a handle. The handle is provided with a limiting groove, and the ball limiting member is provided with a slider that can slide within the limiting groove to make the ball rotate.

2. The ball valve according to claim 1, characterized in that, The ball limiting member includes an annular portion, which is coaxially arranged with the ball valve body. The outer surface of the annular portion is in contact with the inner surface of the ball valve body, and a stabilizing ridge that can slide along the surface of the ball is provided on the inner side of the annular portion. The annular portion is provided with a valve stem channel for the valve stem to pass through, and the slider is disposed on the valve stem channel.

3. The ball valve according to claim 2, characterized in that, The handle includes a mounting groove for mounting the valve stem, and the limiting groove is located outside the mounting groove and is arranged circumferentially along the mounting groove.

4. The ball valve according to claim 3, characterized in that, The central angle corresponding to the limiting groove is α, and the central angle corresponding to the slider is β, where α-β=90°; And / or, the mounting groove has a groove on its wall, and the valve stem has a protrusion on its side that can mate with the groove.

5. The ball valve according to claim 2, characterized in that, A first sealing groove is provided at the position of the valve stem within the valve stem channel, and a sealing ring is provided in the first sealing groove.

6. The ball valve according to claim 1, characterized in that, A second sealing groove is provided on the end face of the first body and the second body near the ball limiting member, and a sealing gasket is provided between the second sealing groove and the ball limiting member.

7. The ball valve according to claim 6, characterized in that, The sealing gasket has an annular boss on the side near the ball limiting member, and the end face of the ball limiting member has an annular recess for engaging with the annular boss.

8. The ball valve according to claim 1, characterized in that, A first protrusion is provided on the end face of the first body that mates with the second body, and a first mating surface is provided on the first protrusion; The second body has a second protrusion on its end face that mates with the first body, and the second protrusion has a second mating surface that mates with the first mating surface.

9. The ball valve according to claim 5, characterized in that, The ball valve body, handle, valve stem, and ball limiting component are all made of PA66 and GF composite materials. And / or, the sphere is made of a composite material of PPS and glass mineral; And / or, the sealing ring and sealing gasket are made of EPDM.

10. A pipeline structure, characterized in that, Includes the ball valve according to any one of claims 1-9.

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