A three-piece relief valve

Abstract

The utility model discloses a three piece type relief valve relates to valve technical field. The three piece type relief valve screw thread valve cover, valve body, inflow end valve cover, valve seat, ball, valve rod and threaded lead -out pipe, valve body swing joint is in screw thread valve cover, and inflow end valve cover swing joint is in valve body and is connected with the fixed connection of medium storage container's tank bottom steel sheet. The three piece type relief valve, screw thread valve cover, valve body and inflow end valve cover swing joint design make the installation and disassembly between each part of valve more convenient, need not complex tool and operation process, greatly improved the efficiency of maintenance and replacement parts, simultaneously, at the valve and container connection, inflow end valve cover and threaded lead -out pipe between screw thread connection fixed formation preliminary connection, and inflow end valve cover and tank bottom steel sheet are connected through fastening bolt and form secondary connection, and then ensure that valve body connection is stable and reliable, and the life is long, satisfies the use demand.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically a three-piece relief valve. Background Technology

[0002] Valves are core devices in industrial pipeline systems and equipment used to control fluid flow. By adjusting the pressure, flow rate, flow direction, and on / off state of the fluid, they ensure the safe operation of the equipment and meet process requirements.

[0003] Existing relief valves are typically complex in construction, difficult to assemble, and involve complex tools and operating procedures. As a result, subsequent maintenance and component replacement are inefficient, requiring the entire valve to be disassembled during maintenance, which is labor-intensive. In addition, when the valve is connected to the container, the fixing method is usually simple. During long-term use, due to changes in medium pressure and equipment vibration, the connection is prone to loosening, leading to leakage accidents. Therefore, they cannot meet the usage requirements. In view of the shortcomings of the existing technology, this utility model provides a three-piece relief valve to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a three-piece relief valve. The movable snap-fit ​​design of the threaded valve cover, valve body, and inflow valve cover makes the installation and disassembly of the valve components more convenient, eliminating the need for complex tools and operating procedures, and greatly improving the efficiency of maintenance and component replacement. At the same time, at the connection between the valve and the container, the inflow valve cover and the threaded outlet pipe are fixed by a threaded connection to form a preliminary connection, and the inflow valve cover and the bottom steel plate of the tank are connected by fastening bolts to form a secondary connection, thereby ensuring that the valve body connection is stable and reliable, has a long service life, and meets the usage requirements.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a three-piece relief valve, comprising a threaded valve cover, a valve body, an inflow end valve cover, a valve seat, a ball, a valve stem, and a threaded outlet pipe; The valve body is movably snapped onto the threaded valve cover; The inflow end valve cover is movably snapped onto the valve body and fixedly connected to the bottom steel plate of the medium storage container; The valve seat is movably engaged in the inner cavity formed by the threaded valve cover, valve body, and inflow end valve cover; The ball is movable and engaged inside the valve seat; The valve stem is rotatably connected to the valve body and docks with the ball; The threaded outlet pipe is movably snapped into the inside of the bottom steel plate of the tank and threadedly connected to the inflow end valve cover.

[0006] Preferably, a fixing flexible plate is movably engaged between the threaded outlet pipe and the bottom steel plate of the tank.

[0007] Preferably, an O-ring is movably engaged between the fixed flexible plate and the threaded outlet tube.

[0008] Preferably, a fastening bolt is threaded between the bottom steel plate of the tank and the inflow valve cover.

[0009] Preferably, a double-ended screw is movably inserted between the threaded valve cover, the valve body, and the inflow valve cover, and both ends of the double-ended screw are threaded with nuts for locking the threaded valve cover, the valve body, and the inflow valve cover.

[0010] Preferably, the valve stem is provided with a drive handwheel.

[0011] This utility model discloses a three-piece relief valve, which has the following beneficial effects: This three-piece relief valve features a snap-fit ​​design for the threaded valve cover, valve body, and inflow valve cover, making the installation and disassembly of the valve components more convenient. It eliminates the need for complex tools and operating procedures, greatly improving the efficiency of maintenance and component replacement. At the same time, at the connection between the valve and the container, the threaded connection between the inflow valve cover and the threaded outlet pipe forms a preliminary connection, while the inflow valve cover and the bottom steel plate of the tank are connected by fastening bolts to form a secondary connection. This ensures that the valve body connection is stable and reliable, has a long service life, and meets the usage requirements. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of section A in the middle.

[0014] In the diagram: 1. Threaded valve cover; 2. Valve body; 3. Inlet valve cover; 4. Valve seat; 5. Ball; 6. Valve stem; 7. Fastening bolt; 8. Tank bottom steel plate; 9. Fixed flexible plate; 10. Threaded outlet pipe; 11. O-ring. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0016] This application provides a three-piece relief valve, which solves the problems of existing relief valves being generally complex in structure, difficult to assemble, and involving complex tools and operating procedures. As a result, the efficiency of subsequent maintenance and replacement of parts is low, and maintenance requires disassembling the entire valve, which is a lot of work. At the same time, when the valve is connected to the container, the fixing method is usually simple. During long-term use, due to changes in medium pressure and equipment vibration, the connection is prone to loosening, which can lead to leakage accidents.

[0017] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0018] Example 1: This utility model discloses a three-piece relief valve, according to the attached... Figure 1-2 As shown, it includes a threaded valve cover 1, a valve body 2, an inflow end valve cover 3, a valve seat 4, a ball 5, a valve stem 6, and a threaded outlet pipe 10; The threaded valve cover 1 is a basic component of the valve, providing a basic interface for the assembly of the entire valve and protecting other internal components.

[0019] The valve body 2 is movably snapped onto the threaded valve cover 1 and is the core load-bearing structure of the valve. It forms a channel for the flow of medium inside and provides support and positioning for the installation of the valve seat 4 and the ball 5.

[0020] The inflow end valve cover 3 is movably snapped onto the valve body 2 and fixedly connected to the bottom steel plate 8 of the medium storage container. Its function is to introduce the medium from the storage container into the valve, realizing the connection of the starting end of the medium flow.

[0021] The valve seat 4 is movably engaged in the inner cavity formed by the threaded valve cover 1, the valve body 2 and the inflow end valve cover 3, and cooperates with the ball 5 to seal and support the ball 5. When the ball 5 rotates to the closed position, the valve seat 4 fits tightly with the ball 5 to prevent media leakage.

[0022] The ball 5 is movably engaged inside the valve seat 4 and is a key component in the valve for controlling the flow of the medium. Driven by the valve stem 6, the ball 5 can rotate within the valve seat 4, thereby opening and closing the valve. When the through hole of the ball 5 is aligned with the medium passage, the medium can pass through smoothly; when the through hole of the ball 5 is perpendicular to the medium passage, the medium is blocked.

[0023] The valve stem 6 is rotatably connected to the valve body 2 and docks with the ball 5, serving as the component that transmits external driving force to the ball 5. The operator rotates the valve stem 6 by driving the handwheel, which in turn rotates the ball 5, thus opening and closing the valve.

[0024] A fastening bolt 7 is threadedly connected between the bottom steel plate 8 and the inflow valve cover 3. The fastening bolt 7 serves to firmly fix the inflow valve cover 3 to the bottom steel plate 8, ensuring the stability of the connection between the valve and the medium storage container and preventing loosening or leakage during use.

[0025] The bottom steel plate 8, as part of the medium storage container, serves as the basic platform for valve installation, providing support for the entire valve system. Furthermore, through its connection with the inflow end valve cover 3, it enables the introduction of the medium from the storage container to the valve.

[0026] The threaded outlet pipe 10 is movably snapped into the inside of the bottom steel plate 8 and threadedly connected to the inflow valve cover 3, serving as the channel for the medium to flow into the valve. It guides the medium into the valve body, thus realizing the transport of the medium.

[0027] The movable snap-fit ​​design of the threaded valve cover 1, valve body 2, and inflow valve cover 3 makes the installation and disassembly of the valve components more convenient, without the need for complicated tools and operating procedures, greatly improving the efficiency of maintenance and component replacement. At the same time, at the connection between the valve and the container, the threaded connection between the inflow valve cover 3 and the threaded outlet pipe 10 forms a preliminary connection, and the inflow valve cover 3 and the bottom steel plate 8 of the tank are connected by fastening bolts 7 to form a secondary connection, thereby ensuring that the valve body connection is stable and reliable, has a long service life, and meets the usage requirements.

[0028] Example 2: This utility model discloses a three-piece relief valve, according to the attached... Figure 1-2 As shown, it includes a threaded valve cover 1, a valve body 2, an inflow end valve cover 3, a valve seat 4, a ball 5, a valve stem 6, and a threaded outlet pipe 10; The valve body 2 is movably snapped onto the threaded valve cover 1; The inflow end valve cover 3 is movably snapped onto the valve body 2 and fixedly connected to the bottom steel plate 8 of the medium storage container; The valve seat 4 is movably engaged in the inner cavity formed by the threaded valve cover 1, the valve body 2, and the inflow end valve cover 3; The ball 5 is movable and engaged inside the valve seat 4; The valve stem 6 is rotatably connected to the valve body 2 and docks with the ball 5; The threaded outlet pipe 10 is movably snapped into the inside of the bottom steel plate 8 of the tank and threadedly connected to the inflow end valve cover 3.

[0029] A retaining plate 9 is movably engaged between the threaded outlet pipe 10 and the tank bottom steel plate 8. The retaining plate 9 serves as a buffer and seal. Since there may be some errors during the installation of different equipment, the retaining plate 9 can compensate for these errors, ensuring a tight and stable connection between the threaded outlet pipe 10 and the tank bottom steel plate 8, and preventing media leakage.

[0030] An O-ring 11 is movably engaged between the fixed flexible plate 9 and the threaded outlet pipe 10. The O-ring 11 has good elasticity and sealing performance, which can effectively prevent the medium from leaking at the connection between the fixed flexible plate 9 and the threaded outlet pipe 10, and ensure the sealing performance of the valve system.

[0031] A double-ended screw is movably inserted between the threaded valve cover 1, valve body 2, and inflow end valve cover 3. Both ends of the double-ended screw are threaded with nuts for locking the threaded valve cover 1, valve body 2, and inflow end valve cover 3. The threaded valve cover 1, valve body 2, and inflow end valve cover 3 are fixed together by the double-ended screw and nuts. Each of the threaded valve cover 1, valve body 2, and inflow end valve cover 3 has a corresponding circular hole, thus ensuring convenient assembly and good stability of the entire valve body.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A three-piece relief valve, characterized in that, include: Threaded valve cover (1); The valve body (2) is movably snapped onto the threaded valve cover (1); The inflow end valve cover (3) is movably snapped onto the valve body (2) and fixedly connected to the bottom steel plate (8) of the medium storage container; The valve seat (4) is movably engaged in the cavity formed by the threaded valve cover (1), the valve body (2) and the inflow valve cover (3); The ball (5) is movably engaged inside the valve seat (4); The valve stem (6) is rotatably connected to the valve body (2) and docks with the ball (5); The threaded outlet pipe (10) is movably snapped into the inside of the bottom steel plate (8) of the tank and threadedly connected to the inflow end valve cover (3).

2. A three-piece relief valve according to claim 1, characterized in that, A fixed flexible plate (9) is movably connected between the threaded outlet pipe (10) and the bottom steel plate (8).

3. A three-piece relief valve according to claim 2, characterized in that, An O-ring (11) is movably engaged between the fixed flexible plate (9) and the threaded outlet tube (10).

4. A three-piece relief valve according to claim 1, characterized in that, The bottom steel plate (8) of the tank and the inflow valve cover (3) are connected by a fastening bolt (7).

5. A three-piece relief valve according to claim 1, characterized in that, A double-ended screw is movably inserted between the threaded valve cover (1), the valve body (2), and the inflow valve cover (3). Both ends of the double-ended screw are threaded with nuts for locking the threaded valve cover (1), the valve body (2), and the inflow valve cover (3).

6. A three-piece relief valve according to claim 1, characterized in that, The valve stem (6) is equipped with a drive handwheel.

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