Safety valve with good sealing performance

Abstract

The utility model relates to the field of safety valves, and discloses a safety valve with good sealing performance, which comprises a valve main body, the side wall of the valve main body is fixedly connected with a flange plate I, a fixing component is arranged in the flange plate I, the side wall of the valve main body is provided with a pipeline, and the side wall of the pipeline is fixedly connected with a flange plate II. A filtering assembly is arranged on the side wall of the pipeline; the fixing assembly comprises a screw rod, the screw rod is in threaded connection with the interior of the first flange plate and the interior of the second flange plate, the bottom of the screw rod is fixedly connected with a connecting rod, the side wall of the connecting rod is fixedly connected with a fixing block, and the side wall of the fixing block is rotationally connected with a clamping plate. According to the utility model, the rotation block is rotated to cancel the fixation of the screw rod, the clamping plate is pressed to rotate on the side wall of the fixed block and be attached to the side wall of the connecting rod, and the connection of the flange plate I and the flange plate II is cancelled, so that the valve main body is separated from the pipeline, a new sealing gasket is convenient to replace, and the problem that the traditional connection mode of the valve main body and the pipeline is relatively complicated is solved.

Description

Technical Field

[0001] The utility model relates to the field of safety valves, in particular to a safety valve with good sealing performance. Background Art

[0002] In many fields, such as industrial production and energy transmission, safety valves are key devices for ensuring safe system operation. They automatically open when system pressure exceeds the allowable limit, releasing pressure and preventing accidents caused by excessive pressure. Sealing is crucial to the performance of safety valves, as a good seal prevents leakage, ensures stable system operation, and minimizes environmental pollution.

[0003] The traditional safety valve's structural design primarily consists of a valve body, valve seat, valve disc, and auxiliary pressure-sensing and regulating components. For example, a common gravity-operated safety valve utilizes the weight of a heavy object to act on the valve disc. When system pressure is within normal range, the pressure generated by the weight presses the valve disc tightly against the valve seat, preventing the passage of media. Another common type of safety valve is the spring-loaded safety valve, which utilizes spring force. The opening pressure of the safety valve is set by adjusting the compression of the spring. Under normal pressure, the spring's force pushes the valve disc against the valve seat, creating a seal.

[0004] The connection between the traditional valve and the pipeline is fixed with bolts. Although this method can fix the valve, the installation process is cumbersome and requires professional installation tools. As a result, the operation is more complicated when the gasket is damaged and needs to be replaced. Therefore, a safety valve with good sealing performance is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a safety valve with good sealing performance, aiming to improve the problem in the prior art that the installation process between traditional valves and pipelines is cumbersome and requires the use of professional tools for installation.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A safety valve with good sealing performance comprises a valve body, a first flange being fixedly connected to a side wall of the valve body, a fixing assembly being provided inside the first flange, a pipe being provided on the side wall of the valve body, a second flange being fixedly connected to a side wall of the pipe, and a filter assembly being provided on the side wall of the pipe;

[0008] The fixing assembly includes a screw, the screw is threadedly connected to the inside of the flange plate 1 and the flange plate 2, the bottom of the screw is fixedly connected to a connecting rod, the side wall of the connecting rod is fixedly connected to a fixing block, the side wall of the fixing block is rotatably connected to a clamping plate, the side wall of the screw is threadedly connected to a rotating block, and the side wall of the rotating block is fixedly connected to a connecting plate;

[0009] As a further description of the above technical solution:

[0010] The filter assembly includes a connecting pipe, the side wall of the connecting pipe is fixedly connected to the side wall of the pipeline, and a fixing ring is fixedly connected inside the connecting pipe;

[0011] As a further description of the above technical solution:

[0012] A filter frame is slidably connected to the interior of the connecting pipe, and a concave hole is opened in the interior of the filter frame;

[0013] As a further description of the above technical solution:

[0014] A fixing groove is provided inside the fixing ring, and a clamping block is provided inside the fixing ring;

[0015] As a further description of the above technical solution:

[0016] The side wall of the clamping block is slidably connected to the inside of the fixing groove, and the side wall of the clamping block is slidably connected to the inside of the concave hole;

[0017] As a further description of the above technical solution:

[0018] A spring is provided inside the fixing groove, and a fixing rod is fixedly connected inside the filter frame;

[0019] As a further description of the above technical solution:

[0020] One end of the spring is fixedly connected to the side wall of the block, and the other end of the spring is fixedly connected to the inside of the fixing groove;

[0021] As a further description of the above technical solution:

[0022] The connecting rod is slidably connected to the inside of the second flange, and the side wall of the clamping plate is in contact with the bottom of the second flange.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, the fixing of the screw rod is cancelled by rotating the rotating block, and the clamping plate is pressed to rotate on the side wall of the fixed block and fit on the side wall of the connecting rod, thereby canceling the connection between flange 1 and flange 2, separating the valve body from the pipeline, and facilitating the replacement of a new gasket. This solves the problem that the traditional connection method between the valve body and the pipeline is relatively complicated and requires more operating steps or auxiliary tools. The above technical solution can deal with the problem of gasket damage more promptly, thereby improving the maintenance efficiency of the equipment.

[0025] 2. In the utility model, the filter frame is rotated by rotating the fixing rod, and the clamping block is squeezed into the fixing groove. The clamping block is separated from the concave hole to cancel the fixation of the filter frame, which solves the problem that the filter frame is complicated to install and difficult to disassemble and clean. The above technical solution makes the filter frame easy to disassemble and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of a safety valve with good sealing performance proposed by the utility model;

[0027] Figure 2 This is a three-dimensional schematic diagram of a fixing rod of a safety valve with good sealing performance proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the fixed internal structure of a safety valve with good sealing performance proposed by the utility model;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0030] Legend:

[0031] 1. Valve body; 2. Flange 1; 3. Pipe; 4. Flange 2; 5. Screw; 6. Connecting rod; 7. Fixing block; 8. Clamping plate; 9. Rotating block; 10. Connecting plate; 11. Connecting pipe; 12. Retaining ring; 13. Filter frame; 14. Concave hole; 15. Fixing groove; 16. Clamping block; 17. Spring; 18. Fixing rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 - Figure 3, the utility model provides an embodiment: a safety valve with good sealing performance, including a valve body 1, the side wall of the valve body 1 is fixedly connected to a flange 2, a fixing component is arranged inside the flange 2, the side wall of the valve body 1 is provided with a pipe 3, the side wall of the pipe 3 is fixedly connected to a flange 2 4, and the side wall of the pipe 3 is provided with a filter component; the fixing component includes a screw 5, the screw 5 is threadedly connected to the inside of the flange 2 and the flange 2 4, the bottom of the screw 5 is fixedly connected to a connecting rod 6, the side wall of the connecting rod 6 is fixedly connected to a fixing block 7, the side wall of the fixing block 7 is rotatably connected to a clamping plate 8, and the clamping plate 8 is used for fixing; the side wall of the screw 5 is threadedly connected to a rotating block 9, the rotating block 9 is used to enhance the stability of the connection, the side wall of the rotating block 9 is fixedly connected to a connecting plate 10, the connecting rod 6 is slidably connected to the inside of the flange 2 4, and the side wall of the clamping plate 8 fits with the bottom of the flange 2 4;

[0034] During long-term operation, the sealing gasket may gradually lose its sealing performance due to factors such as erosion and corrosion of the medium, as well as changes in temperature and pressure. At this time, it needs to be replaced. The rotating block 9 is rotated through the connecting plate 10. The connecting plate 10 plays a force transmission role, which accurately transmits the external force applied by the operator to the rotating block 9. In this process, the rotating block 9 mainly fixes or releases the screw 5. When the rotating block 9 is rotated, the connection state between it and the screw 5 changes, thereby canceling the fixation of the screw 5. The design of this fixing method ensures that the stable connection between the various components can be ensured during normal use. When the sealing gasket needs to be repaired and replaced, this restriction can be easily removed. Then press the card plate 8. When the card plate 8 is not pressed, it is stuck on the side wall of the flange 2 4, which plays a limiting role on the connecting rod 6 to ensure the stability of the connection between the valve body 1 and the pipeline 3. When the card plate 8 is pressed, it rotates on the side wall of the fixing block 7. The fixing block 7 provides support and guidance for the rotation of the card plate 8, so that it can smoothly fit on the side wall of the connecting rod 6. This eliminates the connection between flange 1 2 and flange 2 4. This design allows the card plate 8 to flexibly change its state during the connection and disassembly process. When the card plate 8 is fitted onto the side wall of the connecting rod 6, flange 1 2 and flange 2 4 are no longer restricted by the card plate 8, so that the valve body 1 can be separated from the pipeline 3. This series of actions effectively breaks the original connection structure and creates conditions for replacing the gasket. Through such operation, it is easy to replace the new gasket. The new gasket can refill the tiny gap between the connection surface of the valve body 1 and the pipeline 3, thereby quickly restoring the sealing of the connection structure, ensuring that the entire system can continue to operate safely and stably, and avoiding media leakage problems caused by damage to the gasket.

[0035] Reference Figure 3 and Figure 4The filter assembly includes a connecting pipe 11, the side wall of the connecting pipe 11 is fixedly connected to the side wall of the pipeline 3, a fixing ring 12 is fixedly connected to the inside of the connecting pipe 11, a filter frame 13 is slidably connected to the inside of the connecting pipe 11, a concave hole 14 is opened inside the filter frame 13, a fixing groove 15 is opened inside the fixing ring 12, a clamping block 16 is provided inside the fixing ring 12, the concave hole 14 and the clamping block 16 cooperate with each other to provide a stable fixed position for the filter frame 13, the side wall of the clamping block 16 is slidably connected to the inside of the fixing groove 15, the side wall of the clamping block 16 is slidably connected to the inside of the concave hole 14, a spring 17 is provided inside the fixing groove 15, a fixing rod 18 is fixedly connected to the inside of the filter frame 13, the fixing rod 18 is used to rotate the filter frame 13, one end of the spring 17 is fixedly connected to the side wall of the clamping block 16, and the other end of the spring 17 is fixedly connected to the inside of the fixing groove 15;

[0036] When the filter frame 13 needs to be cleaned, the fixing rod 18 plays a key role in guiding the operation. By rotating it, it can provide power and control the rotation direction for the rotation of the filter frame 13, so that the filter frame 13 can rotate around a specific axis. During this rotation process, the block 16 is squeezed by the rotation of the filter frame 13. This squeezing enables the block 16 to move into the fixed groove 15. The fixed groove 15 provides a space for the block 16 to accommodate its movement, ensuring that the block 16 can change its position smoothly when subjected to external force. At the same time, the block 16 moves to the fixed groove. When the filter frame 13 moves inside the recessed hole 14, the spring 17 is squeezed. The spring 17 begins to contract due to the external force. Its contraction provides a buffer and displacement space for the movement of the card block 16. When the card block 16 is separated from the interior of the recessed hole 14 under the above series of actions, the fixation of the filter frame 13 is cancelled. The recessed hole 14 originally cooperates with the card block 16 to provide a stable fixed position for the filter frame 13 to prevent it from being displaced during normal operation. At this time, the filter frame 13 can be removed for cleaning to remove impurities accumulated on the filter frame 13 and ensure the normal performance of its filtering function.

[0037] Working principle: The sealing gasket will be damaged during long-term use. The rotating block 9 is rotated through the connecting plate 10 to cancel the fixation of the screw 5. Then the clamping plate 8 is pressed to rotate it on the side wall of the fixing block 7 and fit against the side wall of the connecting rod 6, thereby canceling the connection between flange 1 2 and flange 2 4, separating the valve body 1 from the pipeline 3, making it easy to replace a new sealing gasket, thereby quickly restoring the sealing of the connection structure.

[0038] When the filter frame 13 needs to be cleaned, the filter frame 13 is rotated by rotating the fixing rod 18, and the clamping block 16 is squeezed into the fixing groove 15, squeezing the spring 17 to shrink it, and the clamping block 16 is disengaged from the concave hole 14 to cancel the fixation of the filter frame 13, and it can be removed for cleaning.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A safety valve with good sealing performance, comprising a valve body (1), characterized in that: The side wall of the valve body (1) is fixedly connected to a flange plate 1 (2), a fixing component is provided inside the flange plate 1 (2), a pipe (3) is provided on the side wall of the valve body (1), a flange plate 2 (4) is fixedly connected to the side wall of the pipe (3), and a filter component is provided on the side wall of the pipe (3); The fixing assembly includes a screw (5), the screw (5) is threadedly connected to the inside of the flange plate 1 (2) and the flange plate 2 (4), the bottom of the screw (5) is fixedly connected to a connecting rod (6), the side wall of the connecting rod (6) is fixedly connected to a fixing block (7), the side wall of the fixing block (7) is rotatably connected to a clamping plate (8), the side wall of the screw (5) is threadedly connected to a rotating block (9), and the side wall of the rotating block (9) is fixedly connected to a connecting plate (10).

2. A safety valve with good sealing performance according to claim 1, characterized in that: The filter assembly comprises a connecting pipe (11), the side wall of the connecting pipe (11) is fixedly connected to the side wall of the pipeline (3), and a fixing ring (12) is fixedly connected inside the connecting pipe (11).

3. A safety valve with good sealing performance according to claim 2, characterized in that: A filter frame (13) is slidably connected inside the connecting pipe (11), and a concave hole (14) is provided inside the filter frame (13).

4. A safety valve with good sealing performance according to claim 3, characterized in that: A fixing groove (15) is provided inside the fixing ring (12), and a clamping block (16) is provided inside the fixing ring (12).

5. A safety valve with good sealing performance according to claim 4, characterized in that: The side wall of the clamping block (16) is slidably connected to the interior of the fixing groove (15), and the side wall of the clamping block (16) is slidably connected to the interior of the concave hole (14).

6. A safety valve with good sealing performance according to claim 5, characterized in that: A spring (17) is provided inside the fixing groove (15), and a fixing rod (18) is fixedly connected inside the filter frame (13).

7. A safety valve with good sealing performance according to claim 6, characterized in that: One end of the spring (17) is fixedly connected to the side wall of the clamping block (16), and the other end of the spring (17) is fixedly connected to the inside of the fixing groove (15).

8. A safety valve with good sealing performance according to claim 1, characterized in that: The connecting rod (6) is slidably connected to the interior of the second flange (4), and the side wall of the clamping plate (8) is in contact with the bottom of the second flange (4).

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