Split type stainless steel casting valve capable of being disassembled and maintained

Abstract

The utility model discloses a detachable maintenance split type stainless steel casting valve which comprises a first valve body, a second valve body is fixedly connected to the first valve body, a movable pipe is connected in the second valve body in a sliding mode, a groove is formed in the movable pipe, a second sealing ring is connected in the groove in a sleeved mode, and the second sealing ring is connected in the second valve body in a sleeved mode. One end of the first valve body and one end of the movable pipe are fixedly connected with second flanges, and the second flanges are fixedly connected with limiting rings; according to the utility model, the movable pipe is additionally arranged on the second valve body and can adapt to the distance between pipelines, so that the disassembly and assembly efficiency is improved, and the limiting rings are additionally arranged on the movable pipe and the flange of the first valve body, so that the valve can be kept on the pipelines without bolts, and the disassembly and assembly difficulty and the falling risk of the valve are reduced; the pressure relief assembly is additionally arranged on the first valve body, so that the valve has the pressure relief and pollution discharge functions, a pipeline system can be simplified, and the equipment cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a detachable and repairable split-type stainless steel cast valve. Background Technology

[0002] In modern industry and various fluid transport systems, split-type ball valves are widely used in many industries such as chemical, petroleum, natural gas, metallurgy, pharmaceutical, water conservancy, power, and building water supply and drainage due to their unique advantages, such as ease of installation and maintenance and good sealing performance. However, existing split-type ball valves still have the following disadvantages in actual use: 1. In disassembly and maintenance scenarios, due to factors such as pipeline manufacturing tolerances and on-site installation errors, there may be certain deviations in the spacing between pipelines. Existing split-type ball valves are difficult to flexibly adjust their length to adapt to this deviation, increasing installation difficulty and reducing installation efficiency. Furthermore, since existing split-type ball valves are fixedly connected to pipelines via flanges, and the flanges are fixed with bolts, the ball valve is prone to falling due to loss of support during disassembly and assembly if the operation is not careful. This can not only damage the ball valve itself but also cause personal injury to the operator, posing a great safety risk to maintenance work; 2. Before disassembly, the ball valve needs to be depressurized and drained. Current technology uses an additional independent drain valve to drain the medium in the pipeline, which complicates the pipeline system and increases equipment costs. Utility Model Content

[0003] The purpose of this invention is to provide a detachable and maintainable split-type stainless steel cast valve to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a detachable and repairable split-type stainless steel cast valve, comprising a first valve body, a second valve body fixedly connected to the first valve body, a movable tube slidably connected to the second valve body, a groove being formed on the movable tube, a second sealing ring being fitted inside the groove, and the second sealing ring being fitted inside the second valve body, and a second flange being fixedly connected to one end of both the first valve body and the movable tube, with a limit ring fixedly connected to the second flange.

[0005] Preferably, a third flange is fixedly connected to one end of the second valve body, a first flange is fixedly connected to one end of the first valve body, and the first flange is fixedly connected to the third flange.

[0006] Preferably, a first spring is sleeved on the second valve body, with one end of the first spring disposed on the third flange and the other end disposed on the second flange.

[0007] Preferably, a sleeve is fixedly connected to the body of the first valve body, a ball is rotatably connected to the sleeve, the ball is disposed in the body of the first valve body, a valve stem is fixedly connected to the ball, and the valve stem is rotatably connected to the first valve body.

[0008] Preferably, a first sealing ring is provided at both ends of the sphere, with one first sealing ring disposed in the first valve body and the other first sealing ring disposed in the second valve body.

[0009] Preferably, the lower surface of the sphere has a through hole, and the sleeve is fitted into the through hole.

[0010] Preferably, a pressure relief assembly is installed inside the sleeve. The pressure relief assembly includes a piston, a connecting rod, a connector, a threaded rod, a second spring, and a nut. The piston is slidably connected inside the sleeve. A connecting rod is fixedly connected to the lower surface of the piston. A connector is fixedly connected to the bottom end of the connecting rod. A threaded rod is fixedly connected to the lower surface of the first valve body. The connector is slidably connected to the threaded rod. A nut is provided at the bottom end of the connector. The nut is threadedly connected to the threaded rod. A second spring is sleeved on the threaded rod. One end of the second spring is provided on the connector, and the other end is provided on the first valve body.

[0011] This utility model provides a detachable and maintainable split-type stainless steel cast valve, which has the following advantages: The utility model adds a movable pipe to the second valve body, which can adapt to the pipe spacing, thereby improving the efficiency of disassembly and assembly. Limiting rings are added to both the movable pipe and the flange of the first valve body, allowing the valve to remain on the pipe without bolts, thus reducing the difficulty of disassembly and assembly and the risk of the valve falling. The utility model also adds a pressure relief component to the first valve body, enabling the valve to have pressure relief and sewage discharge functions, thus simplifying the pipeline system and reducing equipment costs. 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 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 three-dimensional structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall front view sectional structure of this utility model;

[0015] Figure 3 for Figure 2 Enlarged view of the structure of region A in the middle;

[0016] Figure 4 This is a three-dimensional cross-sectional view of the first valve body of this utility model;

[0017] Figure 5 This is a three-dimensional cross-sectional view of the second valve body of this utility model;

[0018] Figure 6 This is a three-dimensional cross-sectional view of the movable tube of this utility model.

[0019] In the diagram: 1. First valve body; 11. Sleeve; 12. Ball; 13. Through hole; 14. Valve stem; 15. First sealing ring; 16. First flange; 2. Second flange; 21. Limiting ring; 3. Second valve body; 31. Third flange; 4. Movable tube; 41. Groove; 42. Second sealing ring; 5. First spring; 6. Pressure relief assembly; 61. Piston; 62. Connecting rod; 63. Connecting piece; 64. Threaded rod; 65. Second spring; 66. Nut. Detailed Implementation

[0020] 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, 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.

[0021] Please see the appendix Figure 1 - Appendix Figure 6This utility model provides an embodiment of a detachable and maintainable split-type stainless steel cast valve, comprising a first valve body 1, a second valve body 3 fixedly connected to the first valve body 1, a movable tube 4 slidably connected inside the second valve body 3, a groove 41 on the movable tube 4, a second sealing ring 42 fitted inside the groove 41 and fitted inside the second valve body 3, a second flange 2 fixedly connected to one end of both the first valve body 1 and the movable tube 4, a limit ring 21 fixedly connected to the second flange 2, the second valve body 3 and the second valve body 3 constituting the main body shell of the valve, the movable tube 4 being used to adapt to the pipe spacing, the second flange 2 being used to connect to the pipe flange, and the limit ring 21 being used to fit on the pipe flange so that the valve can be held on the pipe; a third flange 31 fixedly connected to one end of the second valve body 3, and a first flange 16 fixedly connected to one end of the first valve body 1, the first flange 16 being fixedly connected to the third flange 31, the first flange 16 cooperating with the third flange 31 to connect the second valve body 3 and the first valve body 1; the second valve body 3... A first spring 5 is sleeved on the first valve body 1, with one end of the first spring 5 set on the third flange 31 and the other end set on the second flange 2. The first spring 5 provides a restoring force to the second flange 2, allowing the second flange 2 on the movable pipe 4 to automatically fit against the pipe flange. A sleeve 11 is fixedly connected inside the first valve body 1, and a ball 12 is rotatably connected to the sleeve 11. The ball 12 is located inside the first valve body 1, and a valve stem 14 is fixedly connected to the ball 12. The valve stem 14 is rotatably connected to the first valve body 1. The sleeve 11 is used for... For pressure relief and sewage discharge, valve stem 14 is used to drive ball 12, and ball 12 is used to control the opening and closing of valve; both ends of ball 12 are provided with first sealing rings 15, one of which is located inside the first valve body 1 and the other is located inside the second valve body 3. The first sealing rings 15 are used to improve the sealing between ball 12 and the second valve body 3 and the first valve body 1; a through hole 13 is opened on the lower surface of ball 12, and sleeve 11 is fitted into the through hole 13. The through hole 13 is used to accommodate sleeve 11.A pressure relief assembly 6 is installed inside the sleeve 11. The pressure relief assembly 6 includes a piston 61, a connecting rod 62, a connecting piece 63, a threaded rod 64, a second spring 65, and a nut 66. The piston 61 is slidably connected inside the sleeve 11. The connecting rod 62 is fixedly connected to the lower surface of the piston 61. The connecting piece 63 is fixedly connected to the bottom end of the connecting rod 62. The threaded rod 64 is fixedly connected to the lower surface of the first valve body 1. The connecting piece 63 is slidably connected to the threaded rod 64. A nut 66 is provided at the bottom end of the connecting piece 63 and is threadedly connected to the threaded rod 65. 4. A second spring 65 is sleeved on the threaded rod 64, with one end of the second spring 65 attached to the connector 63 and the other end attached to the first valve body 1. The piston 61 controls the opening and closing of the sleeve 11. The second spring 65 provides a reset force to the connector 63. The connector 63 drives the piston 61 via the connecting rod 62, allowing the piston 61 to automatically close and seal the sleeve 11. The threaded rod 64 is used to install the nut 66, which pushes the connector 63 upward, keeping the piston 61 in the open state.

[0022] Working principle: When using this utility model, first install the first valve body 1 on the pipeline, then slide the movable pipe 4 to install the movable pipe 4 on another pipeline. The movable pipe 4 and the first valve body 1 are respectively fitted to the pipeline flange through the second flange 2 on them. The second flange 2 is fitted onto the pipeline flange through the limiting ring 21 on it. Rotate and adjust the second flange 2 so that its mounting hole is aligned with the mounting hole of the pipeline flange, and then insert the bolts. During disassembly and maintenance, the nut 66 can be rotated. The nut 66 moves upward along the threaded rod 64, driving the connecting piece 63 to move upward. The connecting piece 63 drives the piston 61 through the connecting rod 62. The piston 61 disengages from the sleeve 11, allowing the medium in the valve to be discharged through the sleeve 11. Then remove the bolts on the pipeline flange, and then slide the movable pipe 4 so that the limiting ring 21 on the second flange 2 is aligned with the pipeline flange. 1. The valve can be removed by detaching it from the pipe flange. The first spring 5 provides a reset force to the second flange 2, allowing the second flange 2 on the movable pipe 4 to automatically conform to the pipe flange. The valve stem 14 drives the ball 12, which controls the valve's opening and closing. The through hole 13 accommodates the sleeve 11. The first sealing ring 15 improves the sealing between the ball 12 and the second valve body 3 and the first valve body 1. The first flange 16, in conjunction with the third flange 31, connects the second valve body 3 and the first valve body 1. The second valve body 3 and the second valve body 41 constitute the main body shell of the valve. The groove 41 is used to install the second sealing ring 42, which improves the sealing between the movable pipe 4 and the second valve body 3. The second spring 65 provides a reset force to the connecting piece 63, allowing the piston 61 to reset.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A detachable and maintainable split-type stainless steel cast valve, comprising a first valve body (1), characterized in that: A second valve body (3) is fixedly connected to the first valve body (1). A movable tube (4) is slidably connected inside the second valve body (3). A groove (41) is opened on the movable tube (4). A second sealing ring (42) is sleeved in the groove (41) and the second sealing ring (42) is sleeved inside the second valve body (3). A second flange (2) is fixedly connected to one end of both the first valve body (1) and the movable tube (4). A limit ring (21) is fixedly connected to the second flange (2).

2. The split-type stainless steel cast valve according to claim 1, characterized in that: One end of the second valve body (3) is fixedly connected to a third flange (31), and one end of the first valve body (1) is fixedly connected to a first flange (16), and the first flange (16) is fixedly connected to the third flange (31).

3. The split-type stainless steel cast valve according to claim 2, characterized in that: The second valve body (3) is fitted with a first spring (5), and one end of the first spring (5) is disposed on the third flange (31), and the other end is disposed on the second flange (2).

4. The split-type stainless steel cast valve according to claim 2, characterized in that: A sleeve (11) is fixedly connected inside the first valve body (1). A ball (12) is rotatably connected to the sleeve (11). The ball (12) is located inside the first valve body (1). A valve stem (14) is fixedly connected to the ball (12). The valve stem (14) is rotatably connected to the first valve body (1).

5. The split-type stainless steel cast valve according to claim 4, characterized in that: Both ends of the ball (12) are provided with a first sealing ring (15), and one of the first sealing rings (15) is located in the first valve body (1) and the other first sealing ring (15) is located in the second valve body (3).

6. The split-type stainless steel cast valve according to claim 4, characterized in that: The lower surface of the sphere (12) is provided with a through hole (13), and the sleeve (11) is fitted into the through hole (13).

7. The split-type stainless steel cast valve according to claim 6, characterized in that: The sleeve (11) is equipped with a pressure relief assembly (6). The pressure relief assembly (6) includes a piston (61), a connecting rod (62), a connector (63), a threaded rod (64), a second spring (65), and a nut (66). The piston (61) is slidably connected to the sleeve (11). The connecting rod (62) is fixedly connected to the lower surface of the piston (61). The connector (63) is fixedly connected to the bottom end of the connecting rod (62). The threaded rod (64) is fixedly connected to the lower surface of the first valve body (1). The connector (63) is slidably connected to the threaded rod (64). The nut (66) is provided at the bottom end of the connector (63). The nut (66) is threadedly connected to the threaded rod (64). The second spring (65) is sleeved on the threaded rod (64). One end of the second spring (65) is provided on the connector (63), and the other end is provided on the first valve body (1).

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