A pneumatic valve for facilitating loading and unloading

Abstract

The utility provides a pneumatic valve convenient to assemble and disassemble, which comprises a valve body, a pipeline, the two ends of the valve body are respectively provided with first flanges, the pipeline is provided with second flanges connected with the valve body, two positioning mechanisms are symmetrically arranged in the valve body, the positioning mechanism is composed of a movable ring and a positioning claw, the movable ring is movably sleeved in the valve body and located between the valve body and the first flange, the positioning claw is four, equidistantly hinged in the movable ring, four positioning grooves equidistantly arranged in the side surface of the second flange away from the first flange are matched with the positioning claws, the first flange and the second flange are connected through bolts, and the side top end of the bolt abuts against the movable ring. The utility has the advantages of convenient installation, reduced bolt shearing force and the like.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic valve technology, and in particular to a pneumatic valve that is easy to install and remove. Background Technology

[0002] A pneumatic control valve consists of an actuator and a regulating mechanism. The actuator is the thrust component of the control valve; it generates a corresponding thrust based on the magnitude of the control signal pressure, driving the regulating mechanism to operate. The valve body is the regulating component of the pneumatic control valve; it directly contacts the regulating medium and regulates the flow rate of the fluid. Pneumatic valves are typically connected to pipe flanges or equipment flanges on both sides via flanges. It is required that the flow path of the pneumatic valve be coaxial with the pipeline. However, in actual installation, when flanges are mated, the mounting holes need to be perfectly aligned. Since the flange has a ring of fixing holes, multiple sets of bolts and nuts are needed for fixing. The mounting holes need to be slightly larger than the bolts to allow them to pass through. This makes it difficult to ensure perfect coaxiality of the pipeline. Sometimes, even rough installation can cause significant shearing forces on the bolts, easily leading to bolt breakage and affecting the effectiveness of the installation. Utility Model Content

[0003] This invention provides a pneumatic valve that is easy to install and remove, in order to solve the problems mentioned in the background art.

[0004] To address the aforementioned issues, this utility model provides a pneumatic valve that is easy to install and remove, comprising a valve body and a pipeline. The valve body has first flanges at both ends, and the pipeline has a second flange connected to the valve body. Two positioning mechanisms are symmetrically arranged within the valve body. Each positioning mechanism consists of a movable ring and positioning claws. The movable ring is movably fitted within the valve body, located between the valve body and the first flange. Four positioning claws are equidistantly hinged within the movable ring. The second flange has four positioning slots equidistantly spaced on its side away from the first flange, for the matching positioning claws to insert into. The first flange and the second flange are connected by bolts, with one end of the bolt abutting against the movable ring.

[0005] Preferably, a spring telescopic rod is installed between the movable ring and the first flange, and the number of spring telescopic rods matches the positioning claw, and is located below the positioning claw.

[0006] Preferably, the valve body is provided with a limiting strip that is slidably connected to the movable ring.

[0007] Preferably, the length of the bolt matches the length of the positioning claw.

[0008] The beneficial effects of adopting the above technical solutions are:

[0009] 1. The positioning claws facilitate the positioning of the first flange in the valve body and the second flange in the pipeline, making the pipeline and valve body coaxial and thus facilitating bolt installation and avoiding damage caused by rough installation.

[0010] 2. The spring telescopic rod makes the positioning ring elastic, which makes it easy to pull and allows the positioning claw to be easily inserted into the positioning groove of the second flange, thus facilitating the docking of the first flange of the valve body and the second flange of the pipeline.

[0011] 3. By having the top of the bolt abut against the movable ring, and with the bolt length being the same as the positioning claw, the positioning claw can secure the first and second flanges, further improving the stability of the connection. At the same time, it reduces the shear force on the bolt, making the bolt less prone to breakage and improving the effectiveness after installation. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a side view of the structure of this utility model.

[0014] Wherein: 1-valve body; 11-first flange; 12-limiting strip; 2-pipeline; 21-second flange; 22-positioning groove; 3-positioning mechanism; 31-moving ring; 32-positioning claw; 4-bolt; 5-spring telescopic rod. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0016] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a movable 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] like Figure 1-2 In this embodiment, a pneumatic valve that is easy to install and remove includes a valve body 1 and a pipe 2. The valve body 1 has a first flange 11 at both ends. The pipe 2 has a second flange 21 connected to the valve body 1. The valve body 1 has two symmetrical positioning mechanisms 3. The positioning mechanism 3 consists of a movable ring 31 and positioning claws 32. The movable ring 31 is movably sleeved in the valve body 1 and is located between the valve body 1 and the first flange 11. There are four positioning claws 32, which are equidistantly hinged in the movable ring 31. The second flange 21 has four positioning grooves 22 at equal intervals on its side away from the first flange 11, which are for the matching positioning claws 32 to insert into. The first flange 11 and the second flange 21 are connected by bolts 4, and the top of one side of the bolt 4 abuts against the movable ring 31.

[0019] With the above technical solution, when in use, the second flange 21 in the pipeline 2 is first initially aligned with the first flange 11 of the valve body 1. Then, the positioning claw 32 is moved so that the positioning claw 32 abuts against the surface of the second flange 21. Then, the pipeline 2 is slowly rotated so that the positioning claw 32 is inserted into the positioning groove 22, thereby completing the coaxial connection between the second flange 21 and the first flange 11. At this time, it is convenient to insert the bolt 4 into the second flange 21 and the first flange 11, improving the convenience of installation. Then, the bolt 4 is used for positioning. After positioning, the top of the bolt 4 abuts against the movable ring 31, thereby tightening the positioning claw 32 through the movable ring 31, making the first flange 11 and the second flange 21 more tightly connected, and at the same time reducing the shear force to avoid the risk of bolt 4 breaking.

[0020] Preferably, a spring telescopic rod 5 is installed between the movable ring 31 and the first flange 11, and the number of spring telescopic rods 5 matches the number of positioning claws 32, and is located below the positioning claws 32.

[0021] Through the above technical solution, the setting of the spring telescopic rod 5 makes the movable ring 31 elastic, so that the positioning claw 32 can abut against the second flange 21, thereby facilitating the rotation of the pipe 2 so that the positioning claw 32 can be inserted into the positioning groove 22. At the same time, it is convenient to complete the initial positioning of the first flange 11 and the second flange 22 after insertion, which facilitates the insertion of the bolt 4.

[0022] Preferably, the valve body 1 is provided with a limiting strip 12 that is slidably connected to the movable ring 31.

[0023] Through the above technical solution, the limiting strip 12 is used to limit the movable ring 31 so that it will not rotate in the valve body 1, thereby ensuring that the positioning claw 32 can stably tighten the second flange 21.

[0024] Preferably, the length of the bolt 4 matches the length of the positioning claw 31.

[0025] Through the above technical solution, the length of the bolt 4 matches the length of the positioning claw 32, so that the top of the bolt 4 can stably abut against the movable ring 31, thereby ensuring that the movable ring 31 can stably drive the positioning claw 32 to tighten the first flange 11 and the second flange 21.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate this utility model and are not intended to limit the technical solutions described in this utility model. Therefore, although this specification has described this utility model in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model, and all technical solutions and improvements that do not depart from the spirit and scope of this utility model should be covered within the scope of the claims of this utility model; technologies not described in detail in this utility model are implemented using existing technologies.

Claims

1. A pneumatic valve that is easy to install and remove, comprising a valve body and a pipeline, characterized in that: The valve body has a first flange at each end, and the pipeline has a second flange connected to the valve body. The valve body has two symmetrical positioning mechanisms, each consisting of a movable ring and positioning claws. The movable ring is movably fitted in the valve body and located between the valve body and the first flange. There are four positioning claws, which are equidistantly hinged in the movable ring. The second flange has four positioning slots equidistantly opened on its side away from the first flange, for the matching positioning claws to insert into. The first flange and the second flange are connected by bolts, and the top of one side of the bolt abuts against the movable ring.

2. The pneumatic valve for easy loading and unloading according to claim 1, characterized in that: A spring telescopic rod is installed between the movable ring and the first flange, and the number of spring telescopic rods matches the positioning claw, and is located below the positioning claw.

3. The pneumatic valve for easy loading and unloading according to claim 1, characterized in that: The valve body is provided with a limiting strip that slides in connection with the movable ring.

4. The pneumatic valve for easy loading and unloading according to claim 1, characterized in that: The length of the bolt matches the length of the positioning claw.

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