Sealing structure of pressure reducing valve

Abstract

The utility model relates to the technical field of pressure reducing valves, and discloses a pressure reducing valve sealing structure which comprises a valve body, a rotating shaft is fixedly connected to the interior of the valve body, a rotating rod is rotationally connected to the top of the rotating shaft, a sealing ring is fixedly connected to the outer wall of the rotating rod, and water expansion rubber is fixedly connected to the outer wall of the sealing ring. The top of the rotating rod is fixedly connected with a shell, the interior of the shell is fixedly connected with air cylinders, the bottoms of the two air cylinders are fixedly connected with a base, the output ends of the two air cylinders are fixedly connected with tooth-shaped strips, and a gear is engaged between every two adjacent tooth-shaped strips. According to the sealing device, the air cylinder is matched with the gear and the tooth-shaped strip, so that the rotating rod and the sealing ring are driven to rotate, the sealing effect is achieved, meanwhile, the water swelling rubber can swell after meeting water, the sealing performance of the whole device is enhanced, the connecting ring is matched with the ball, the sliding shell and the spring, and rapid connection of pipeline parts is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure reducing valves, in particular to a sealing structure of a pressure reducing valve. Background Art

[0002] Pressure reducing valve plays a vital role in a variety of environments. It is a key device used to control the pressure in the pipeline to ensure the safe and stable operation of the system. Pressure reducing valves can be seen in many industrial application scenarios, such as petrochemical, natural gas transmission and water supply systems.

[0003] After searching, the Chinese patent announcement number is: CN218761634U, which discloses a pressure reducing valve structure device with a sealing function, including a pressure reducing valve body, a valve joint located on the pressure reducing valve body, and a pipe joint. A connecting block with a central opening and a rectangular cross-section is provided between the valve joint and the pipe joint. The inner walls of the valve joint and the pipe joint interface are provided with sealing slots with a diameter gradually decreasing from the outside to the inside. The left and right ends of the pipe joint are fixedly connected with sealing plugs matching the shape of the sealing slots. The sealing plugs are inserted into the corresponding sealing slots and the outer ends are sleeved with multiple evenly distributed sealing rings. The utility model improves the sealing performance of the pressure reducing valve joint, reduces the influence of the external temperature on it, and facilitates maintenance and installation. However, in actual use, the above device has the problem that the elasticity of the sealing ring decreases after a period of use, which easily leads to a reduction in the sealing effect, and the manual control of the opening and closing of the valve body is not convenient enough. Therefore, a pressure reducing valve sealing structure is proposed to solve the above problems. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a pressure reducing valve sealing structure, aiming to improve the problem in the prior art that manual opening and closing of the pressure relief valve may result in loose closure, reduced sealing, and inconvenience.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a pressure reducing valve sealing structure, including a valve body, the interior of the valve body is fixedly connected with a rotating shaft, the top of the rotating shaft is rotatably connected with a rotating rod, the outer wall of the rotating rod is fixedly connected with a closed ring, the outer wall of the closed ring is fixedly connected with water-swellable rubber, the top of the rotating rod is fixedly connected with a shell, the interior of the shell is fixedly connected with a cylinder, the bottoms of the two cylinders are fixedly connected with a base, the output ends of the two cylinders are fixedly connected with a toothed bar, gears are meshed between the two adjacent toothed bars, and a connecting mechanism is arranged on the right side of the valve body.

[0006] As a further description of the above technical solution:

[0007] The connecting mechanism includes a connecting ring 1, the left side of the connecting ring 1 is fixedly connected to the right side of the valve body, the outer wall of the connecting ring 1 is fixedly connected to the fixing ring 1, the right side of the connecting ring 1 is provided with a connecting ring 2, the outer wall of the connecting ring 2 is fixedly connected to the fixing ring 2, the outer wall of the connecting ring 2 is provided with a plurality of grooves, the interiors of the plurality of grooves are provided with ball bearings, the outer wall of the connecting ring 2 is slidably connected to a sliding shell, the right side of the sliding shell is fixedly connected to a spring, and the right side of the spring is fixedly connected to a round block.

[0008] As a further description of the above technical solution:

[0009] A fixing column is fixedly connected to the right side of the valve body, and a pressure gauge is fixedly connected to the top of the fixing column.

[0010] As a further description of the above technical solution:

[0011] A display is fixedly connected to the front side of the valve body, and a button is fixedly connected to the front side of the display.

[0012] As a further description of the above technical solution:

[0013] The left side of the valve body is fixedly connected with a filter screen.

[0014] As a further description of the above technical solution:

[0015] A fixing base is fixedly connected to the right side of the shell, and a camera is fixedly connected to the top of the fixing base.

[0016] As a further description of the above technical solution:

[0017] The front side of the shell is fixedly connected with a controller, and the front side of the controller is provided with a protective cover.

[0018] As a further description of the above technical solution:

[0019] The top of the shell is fixedly connected with an alarm.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the cylinder cooperates with the gear and the toothed bar to drive the rotating rod and the closed ring to rotate, so as to achieve the sealing effect with high sealing precision. At the same time, the water-swellable rubber will swell after contacting water, further strengthening the sealing of the overall equipment, and the degree of automation is high, saving manpower.

[0022] 2. In the utility model, the connection ring cooperates with the ball, the sliding shell and the spring to realize the rapid connection of the pipeline or other pipe fittings, while ensuring the sealing performance and improving the practicality of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional schematic diagram of a pressure reducing valve sealing structure proposed by the utility model;

[0024] Figure 2 A structural schematic diagram of a sealing device of a pressure reducing valve sealing structure proposed by the utility model;

[0025] Figure 3 A structural schematic diagram of a connection device of a pressure reducing valve sealing structure proposed by the utility model;

[0026] Legend:

[0027] 1. Valve body; 2. Connecting mechanism; 201. Connecting ring 1; 202. Fixing ring 1; 203. Connecting ring 2; 204. Fixing ring 2; 205. Groove; 206. Ball; 207. Sliding shell; 208. Spring; 209. Round block; 3. Shell; 4. Turning rod; 5. Gear; 6. Toothed bar; 7. Cylinder; 8. Base; 9. Closing ring; 10. Rotating shaft; 11. Fixing column; 12. Pressure gauge; 13. Display; 14. Button; 15. Filter; 16. Fixing seat; 17. Camera; 18. Controller; 19. Protective cover; 20. Alarm; 21. Water-swelling rubber. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1 and Figure 3 The utility model provides an embodiment: a pressure reducing valve sealing structure, including a valve body 1, a rotating shaft 10 is fixedly connected inside the valve body 1, a rotating rod 4 is rotatably connected to the top of the rotating shaft 10, a closing ring 9 is fixedly connected to the outer wall of the rotating rod 4, a water-swelling rubber 21 is fixedly connected to the outer wall of the closing ring 9, a housing 3 is fixedly connected to the top of the rotating rod 4, a cylinder 7 is fixedly connected to the inside of the housing 3, a base 8 is fixedly connected to the bottom of the two cylinders 7, a toothed bar 6 is fixedly connected to the output ends of the two cylinders 7, a gear 5 is meshed between the adjacent two toothed bars 6, a fixing column 11 is fixedly connected to the right side of the valve body 1, a pressure gauge 12 is fixedly connected to the top of the fixing column 11, and a connecting mechanism 2 is arranged on the right side of the valve body 1.

[0030] Specifically, a rotating shaft 10 is fixedly connected inside the valve body 1, and the rotating shaft 10 is connected to the rotating rod 4 by rotation. A closed ring 9 is fixedly connected to the outer wall of the rotating rod 4. The design of the closed ring 9 realizes the sealing effect of the fluid channel. The outer wall of the closed ring 9 is further fixedly connected to a water-swelling rubber 21. The application of this special material enables the water-swelling rubber 21 to expand to a certain extent when it encounters water, thereby enhancing the sealing effect and effectively preventing fluid leakage. The top of the rotating rod 4 is fixedly connected to a shell 3, and the inside of the shell 3 is fixedly connected to two cylinders 7. The two cylinders 7 The bottom is fixedly connected to the base 8, which ensures the stability and reliability of the entire structure. The output end of the cylinder 7 is fixedly connected to a toothed bar 6, and a gear 5 is meshed between two adjacent toothed bars 6. This design enables a stable transmission relationship to be formed between the toothed bar 6 and the gear 5. Through the telescopic movement of the cylinder 7 in conjunction with the toothed bar 6, the gear 5 can be driven to rotate, thereby realizing the rotation of the rotating rod 4 and the closing ring 9, thereby realizing the opening and closing of the fluid channel. The fixing column 11 is used to fix the pressure gauge 12, and the pressure gauge 12 can display the pressure inside the valve, so that the operator can make timely adjustments.

[0031] Reference Figure 2 The connecting mechanism 2 includes a connecting ring 201, the left side of the connecting ring 201 is fixedly connected to the right side of the valve body 1, the outer wall of the connecting ring 201 is fixedly connected to a fixing ring 202, a connecting ring 203 is arranged on the right side of the connecting ring 201, the outer wall of the connecting ring 203 is fixedly connected to a fixing ring 204, a plurality of grooves 205 are provided on the outer wall of the connecting ring 203, balls 206 are arranged inside the plurality of grooves 205, the outer wall of the connecting ring 203 is slidably connected to a sliding shell 207, the right side of the sliding shell 207 is fixedly connected to a spring 208, and the right side of the spring 208 is fixedly connected to a round block 209.

[0032] Specifically, the outer wall of the connecting ring 201 is fixedly connected with a fixing ring 202, and the fixing ring 202 is responsible for lifting the ball 206. On the right side of the connecting ring 201, a connecting ring 203 is designed. Similar to the connecting ring 201, the connecting ring 203 also has similar functions and importance. Its outer wall is fixedly connected with a fixing ring 204, and the fixing ring 204 is mainly used to limit the action of the sliding shell 207. The outer wall of the connecting ring 203 is designed with a plurality of grooves 205, and these grooves 205 provide space for the placement of the ball 206. The ball 206 is cleverly arranged inside the plurality of grooves 205. The outer wall of the connecting ring 203 is also slidably connected with the sliding shell 207. The sliding shell The design of 207 allows it to slide freely on the connecting ring 203. The right side of the sliding shell 207 is fixedly connected with a spring 208. The spring 208 connects the sliding shell 207 and the circular block 209 to prevent the sliding shell 207 from sliding too far. The circular block 209 can be connected with other pipe fittings. The connecting ring 1 201 enters the interior of the connecting ring 203, and the fixed ring 1 202 lifts the ball 206. It continues to move forward and then the ball 206 falls. At this time, the sliding shell 207 is fixed on the top of the ball 206 to achieve a fixing effect. The sliding shell 207 is pushed backward and the ball 206 can move without pressure restriction. The connecting ring 1 201 is pulled out and the fixed ring 1 202 lifts the ball 206 to achieve a loosening effect.

[0033] Reference Figure 1 and Figure 3 A display 13 is fixedly connected to the front side of the valve body 1, a button 14 is fixedly connected to the front side of the display 13, a filter screen 15 is fixedly connected to the left side of the valve body 1, a fixing seat 16 is fixedly connected to the right side of the shell 3, a camera 17 is fixedly connected to the top of the fixing seat 16, a controller 18 is fixedly connected to the front side of the shell 3, a protective cover 19 is provided on the front side of the controller 18, and an alarm 20 is fixedly connected to the top of the shell 3.

[0034] Specifically, the display 13 can display the working status of the equipment, the button 14 can improve the convenience of operating the equipment, the filter 15 can filter particulate matter in the fluid, the fixing seat 16 can fix the camera 17, the camera 17 can monitor the overall situation of the equipment, the controller 18 can enable the operator to control the equipment more conveniently, the protective cover 19 can protect the controller 18, and the alarm 20 can sound an alarm when the pressure in the valve is too high, reminding the operator to make adjustments.

[0035] Working principle: The valve body 1 is fixedly connected to a rotating shaft 10 inside, and the rotating shaft 10 is connected to the rotating rod 4 by rotation. The outer wall of the rotating rod 4 is fixedly connected to a closed ring 9. The design of the closed ring 9 realizes the sealing effect of the fluid channel. The outer wall of the closed ring 9 is further fixedly connected to a water-swelling rubber 21. The application of this special material enables the water-swelling rubber 21 to expand to a certain extent when it encounters water, thereby enhancing the sealing effect and effectively preventing fluid leakage. The top of the rotating rod 4 is fixedly connected to a shell 3, and the inside of the shell 3 is fixedly connected to two cylinders 7. The bottoms of the two cylinders 7 are fixedly connected to the base 8, ensuring the entire The stability and reliability of the structure, the output end of the cylinder 7 is fixedly connected with a toothed bar 6, and a gear 5 is meshed between the two adjacent toothed bars 6. This design enables a stable transmission relationship to be formed between the toothed bar 6 and the gear 5. The telescopic movement of the cylinder 7 cooperates with the toothed bar 6 to drive the gear 5 to rotate, thereby realizing the rotation of the rotating rod 4 and the closing ring 9, thereby realizing the opening and closing of the fluid channel. The fixing column 11 is used to fix the pressure gauge 12, and the pressure gauge 12 can display the pressure inside the valve, so that the operator can make timely adjustments. The outer wall of the connecting ring 201 is fixedly connected with a fixing ring 202, and the fixing ring 202 is responsible for the top The connecting ring 203 plays the role of the ball 206. On the right side of the connecting ring 1 201, a connecting ring 203 is designed. Similar to the connecting ring 1 201, the connecting ring 203 also has similar functions and importance. Its outer wall is fixedly connected with a fixing ring 204. The fixing ring 204 is mainly used to limit the action of the sliding shell 207. The outer wall of the connecting ring 203 is designed with a plurality of grooves 205. These grooves 205 provide space for the placement of the ball 206. The ball 206 is cleverly arranged inside the plurality of grooves 205. The outer wall of the connecting ring 203 is also slidably connected with a sliding shell 207. The design of the sliding shell 207 allows it to be on the connecting ring 203. The sliding shell 207 can slide freely, and a spring 208 is fixedly connected to the right side of the sliding shell 207. The spring 208 connects the sliding shell 207 and the circular block 209 to prevent the sliding shell 207 from sliding too far. The circular block 209 can be connected with other pipe fittings. The connecting ring 1 201 enters the interior of the connecting ring 203, and the fixed ring 1 202 lifts the ball 206, and then continues to move forward and the ball 206 falls. At this time, the sliding shell 207 is fixed on the top of the ball 206 to achieve a fixing effect. The sliding shell 207 is pushed backward and the ball 206 can move without pressure restriction. The connecting ring 1 201 is pulled out and the fixed ring 1 202 lifts the ball 206 to achieve a loosening effect.

[0036] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure reducing valve sealing structure, comprising a valve body (1), characterized in that: The valve body (1) is fixedly connected to a rotating shaft (10) inside, the top of the rotating shaft (10) is rotatably connected to a rotating rod (4), the outer wall of the rotating rod (4) is fixedly connected to a closed ring (9), the outer wall of the closed ring (9) is fixedly connected to a water-swelling rubber (21), the top of the rotating rod (4) is fixedly connected to a housing (3), the inside of the housing (3) is fixedly connected to a cylinder (7), the bottoms of the two cylinders (7) are fixedly connected to a base (8), the output ends of the two cylinders (7) are fixedly connected to a toothed bar (6), a gear (5) is meshed between the two adjacent toothed bars (6), and a connecting mechanism (2) is provided on the right side of the valve body (1).

2. A pressure reducing valve sealing structure according to claim 1, characterized in that: The connecting mechanism (2) comprises a connecting ring 1 (201), the left side of the connecting ring 1 (201) is fixedly connected to the right side of the valve body (1), the outer wall of the connecting ring 1 (201) is fixedly connected to a fixing ring 1 (202), the right side of the connecting ring 1 (201) is provided with a connecting ring 2 (203), the outer wall of the connecting ring 2 (203) is fixedly connected to a fixing ring 2 (204), the outer wall of the connecting ring 2 (203) is provided with a plurality of grooves (205), the interiors of the plurality of grooves (205) are provided with balls (206), the outer wall of the connecting ring 2 (203) is slidably connected to a sliding shell (207), the right side of the sliding shell (207) is fixedly connected to a spring (208), and the right side of the spring (208) is fixedly connected to a round block (209).

3. A pressure reducing valve sealing structure according to claim 1, characterized in that: A fixing column (11) is fixedly connected to the right side of the valve body (1), and a pressure gauge (12) is fixedly connected to the top of the fixing column (11).

4. A pressure reducing valve sealing structure according to claim 1, characterized in that: A display (13) is fixedly connected to the front side of the valve body (1), and a button (14) is fixedly connected to the front side of the display (13).

5. A pressure reducing valve sealing structure according to claim 1, characterized in that: A filter screen (15) is fixedly connected to the left side of the valve body (1).

6. A pressure reducing valve sealing structure according to claim 1, characterized in that: A fixing seat (16) is fixedly connected to the right side of the housing (3), and a camera (17) is fixedly connected to the top of the fixing seat (16).

7. A pressure reducing valve sealing structure according to claim 1, characterized in that: A controller (18) is fixedly connected to the front side of the housing (3), and a protective cover (19) is provided on the front side of the controller (18).

8. The pressure reducing valve sealing structure according to claim 1, characterized in that: An alarm (20) is fixedly connected to the top of the housing (3).

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