Pressure reduction spherical valve

Abstract

The utility model relates to the technical field of fluid control, and discloses a pressure reduction spherical valve which comprises a shell, the top of the shell is fixedly connected with a containing pipe, the interior of the containing pipe is rotationally connected with a rotating shaft, the top of the rotating shaft is fixedly connected with a driving assembly, the bottom of the rotating shaft is fixedly connected with a ball valve, and the ball valve is fixedly connected with a valve rod. A ball valve is arranged in the shell, a through hole is formed in the ball valve, fixing rings are fixedly connected to the left side and the right side of the interior of the shell, sealing rings are arranged on the left side and the right side of the interior of the shell, and sliding rings are slidably connected to the left side and the right side of the interior of the shell. According to the device, air flow or gas entering the device can be prevented from damaging the ball valve, gas leakage or water leakage in the device can be prevented, the service life of the device can be prolonged, the device can adapt to different use scenes, and the use flexibility of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid control, in particular to a pressure reducing spherical valve. Background Art

[0002] In the process of oil and gas extraction, transportation and processing, it is usually necessary to control the pressure in the pipeline. Pressure reducing ball valves can be used to reduce the pressure in the pipeline to ensure the safe operation of the pipeline system. In the chemical production process, the fluid pressure needs to be adjusted to ensure the normal operation of the production equipment. Pressure reducing ball valves can be used to control the pressure in the chemical process to ensure production safety and product quality.

[0003] After searching: Chinese patent announcement number: CN207394007U, it relates to the field of fluid control technology, and discloses an intelligent limited filling ball straight valve, including a valve body connected to a steel cylinder, the valve body is equipped with a spherical stop valve and an intelligent limited filling valve, the outer port of the valve body is equipped with a quick connector, and a self-closing valve is installed in the quick connector. The steel cylinder equipped with the spherical straight valve of the utility model can be quickly connected to the matching pressure reducing valve through a quick connector, so that the replacement of the steel cylinder is simple, fast, safe and reliable. The spherical stop valve and self-closing valve installed in the straight valve can prevent the leakage of residual gas in the straight valve when replacing the gas cylinder, thereby solving the problem of air pollution. The intelligent limited filling valve installed in the spherical straight valve can effectively prevent the illegal filling of the gas cylinder and realize the Internet of Things management.

[0004] The above patent embodiment records that "the sensing sleeve rod is driven to move toward the valve core and the valve core is blocked, so that the valve core cannot move down to close the valve hole on the valve hole seat, and the intelligent filling limit valve is in an open state." In the above embodiment, the sensing sleeve rod is driven to move toward the valve core, so that the valve core cannot move to close the valve hole on the valve hole seat, and then the intelligent filling limit valve can be in an open state. However, it does not take into account that when the impact force of the gas or water flow is too large, the internal valve core will be damaged, which will lead to a reduction in the service life of the device. Therefore, in view of the above-mentioned deficiencies, a new type of pressure reducing ball valve is proposed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a pressure reducing ball valve, aiming to improve the problem in the prior art that the valve core may be damaged when the impact of water flow or gas is too large.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pressure-reducing ball valve comprises a shell, a accommodating tube is fixedly connected to the top of the shell, a rotating shaft is rotatably connected to the inside of the accommodating tube, a driving assembly is fixedly connected to the top of the rotating shaft, a ball valve is fixedly connected to the bottom of the rotating shaft, a through hole is opened inside the ball valve, fixing rings are fixedly connected to the left and right sides of the inside of the shell, sealing rings are arranged on the left and right sides of the inside of the shell, sliding rings are slidably connected to the left and right sides of the inside of the shell, a plurality of bolts are threadedly connected to the far sides of the two sealing rings, fixing tubes are fixedly connected to the left and right sides of the shell, a transfer tube is fixedly connected to the far sides of the two fixing tubes, and connecting tubes are threadedly connected to the outsides of the two transfer tubes.

[0008] Furthermore, the driving assembly includes a plurality of fixed plates and a rotating ring, one end of each of the fixed plates is fixedly connected to the top of the rotating shaft, and the other end of each of the fixed plates is fixedly connected to the inner wall of the rotating ring.

[0009] Furthermore, the adjacent sides of the two sealing rings are in contact with the distant sides of the two fixing rings, and the distant sides of the two sealing rings are in contact with the adjacent sides of the two sliding rings.

[0010] Furthermore, the bottom of the rotating shaft passes through the top inner wall of the shell and extends inward, and the top of the rotating shaft passes through the top inner wall of the shell and extends outward.

[0011] Furthermore, the outside of the ball valve contacts the inner wall of the shell, and the left and right sides of the ball valve contact the adjacent sides of the two fixing rings respectively.

[0012] Furthermore, the sealing ring is made of fluororubber, and the far sides of the two sliding rings and the far sides of the two sealing rings are both threadedly connected to the outside of the bolt.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, through the mutual cooperation of the shell, the containing tube, the rotating shaft, the fixing plate, the rotating ring, the ball valve and other structures, it is possible to prevent the airflow or gas entering the device from damaging the ball valve, and to prevent air or water leakage inside the device, thereby increasing the service life of the device, and then enabling the device to adapt to different usage scenarios, thereby increasing the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a pressure reducing ball valve proposed by the utility model;

[0016] Figure 2This is a schematic diagram of the internal structure of a shell of a pressure reducing ball valve proposed by the utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A.

[0018] Legend:

[0019] 1. Shell; 2. Accommodating tube; 3. Rotating shaft; 4. Fixed plate; 5. Rotating ring; 6. Ball valve; 7. Connecting tube; 8. Through hole; 9. Fixed ring; 10. Sealing ring; 11. Sliding ring; 12. Bolt; 13. Fixed tube; 14. Adapter tube. DETAILED DESCRIPTION

[0020] 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.

[0021] Reference Figure 1-Figure 3 The utility model provides an embodiment: a pressure reducing ball valve, including a shell 1, a receiving tube 2 is fixedly connected to the top of the shell 1, and a rotating shaft 3 is rotatably connected inside the receiving tube 2, so that the rotating shaft 3 can rotate more stably, and a driving component is fixedly connected to the top of the rotating shaft 3, so that when the driving component moves, it will drive the rotating shaft 3 to move, and the driving component includes a plurality of fixed plates 4 and a rotating ring 5, one end of the plurality of fixed plates 4 is fixedly connected to the top of the rotating shaft 3, and then when the plurality of fixed plates 4 move, they will drive the rotating shaft 3 to move.

[0022] The other ends of the multiple fixed plates 4 are fixedly connected to the inner wall of the rotating ring 5, so that the multiple fixed plates 4 will drive the rotating ring 5 to move when they move, and the bottom of the rotating shaft 3 is fixedly connected with a ball valve 6, and then when the rotating shaft 3 rotates, the ball valve 6 will be driven to rotate. A through hole 8 is opened inside the ball valve 6, so that the gas or water entering the inside of the device can flow out through the inside of the through hole 8, or be blocked by the ball valve 6. Fixed rings 9 are fixedly connected on both sides of the inside of the shell 1, and sealing rings 10 are provided on both sides of the inside of the shell 1. Sliding rings 11 are slidably connected on both sides of the inside of the shell 1, and multiple bolts 12 are threadedly connected on the far sides of the two sealing rings 10.

[0023] The left and right sides of the shell 1 are fixedly connected with fixing tubes 13, and the far sides of the two fixing tubes 13 are fixedly connected with transfer tubes 14. The outsides of the two transfer tubes 14 are threadedly connected with connecting tubes 7, so that the connecting tubes 7 can be removed from the device, and the staff can rotate the bolts 12, so that the close sides of the two sealing rings 10 are in contact with the far sides of the two fixing rings 9, and the far sides of the two sealing rings 10 are in contact with the close sides of the two sliding rings 11, so that the sealing rings 10 can be fixed with the cooperation of the bolts 12, the fixing rings 9 and the sliding rings 11.

[0024] The bottom of the rotating shaft 3 passes through the top inner wall of the shell 1 and extends inward, and the top of the rotating shaft 3 passes through the top inner wall of the shell 1 and extends outward, so that the staff can rotate it. The outside of the ball valve 6 contacts the inner wall of the shell 1, and the left and right sides of the ball valve 6 contact the adjacent sides of the two fixing rings 9 respectively, so as to ensure the sealing of the device. The sealing ring 10 is made of fluororubber, so it can resist the corrosion of various chemical substances, including acids, alkalis, solvents, etc., so it has good stability in corrosive environments, and fluororubber has excellent high temperature resistance, and can still maintain its elasticity and sealing performance in high temperature environments, and can usually withstand temperatures as high as 200°C. Therefore, the pressure reducing ball valve using fluororubber sealing sheets can maintain good sealing performance in various harsh environments.

[0025] Then, because fluororubber has good elasticity, it can reduce the impact force of water flow and air flow on the ball valve 6, thereby improving the service life of the device. The far sides of the two sliding rings 11 and the far sides of the two sealing rings 10 are threadedly connected to the outside of the bolts 12, and then the bolts 12 can fix the sliding rings 11 and the sealing rings 10.

[0026] Compared with some existing technologies, the above content can prevent the airflow or gas entering the device from damaging the ball valve 6 during use, and can prevent air or water leakage inside the device, thereby increasing the service life of the device, and then enabling the device to adapt to different usage scenarios, thereby improving the flexibility of the device.

[0027] Working principle: First, connect the gas delivery pipe or liquid delivery pipe to the inside of the two connecting pipes 7, so that the liquid or gas can enter the inside of the connecting pipe 7, and then the gas will enter the inside of the transfer pipe 14 through the inside of the connecting pipe 7, and then the gas or liquid will enter the inside of the fixed pipe 13 through the inside of the transfer pipe 14, so that the gas or liquid will enter the inside of the shell 1 through the inside of the fixed pipe 13. At this time, rotate the rotating ring 5 to make the rotating ring 5 drive the fixed plate 4 to rotate, so that the fixed plate 4 will drive the rotating shaft 3 to rotate when rotating, and then the rotating shaft 3 will drive the ball valve 6 to rotate inside the shell 1 when rotating, and then the ball valve 6 will make the water flow or gas pass through the inside of the through hole 8 opened in the middle of the ball valve 6 when rotating, and then when the ball valve 6 is rotated, When the valve 6 is turned to close the through hole 8, it can prevent airflow and water flow from passing through the inside of the device, and then the airflow and water flow will impact the ball valve 6. Then, because the sealing ring 10 is made of fluororubber, it can resist the erosion of various chemical substances, including acids, alkalis, solvents, etc., so it has good stability in corrosive environments, and fluororubber has excellent high temperature resistance, and can still maintain its elasticity and sealing performance in high temperature environments, and can usually withstand temperatures as high as 200°C. Then, the pressure-reducing ball valve using fluororubber sealing sheets can maintain good sealing performance in various harsh environments. Then, because fluororubber has good elasticity, it can slow down the impact of water and airflow on the ball valve 6, thereby improving the service life of the device.

[0028] 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 ball valve, comprising a housing (1), characterized in that: The top of the shell (1) is fixedly connected to a containing tube (2), the interior of the containing tube (2) is rotatably connected to a rotating shaft (3), the top of the rotating shaft (3) is fixedly connected to a driving assembly, the bottom of the rotating shaft (3) is fixedly connected to a ball valve (6), the interior of the ball valve (6) is provided with a through hole (8), the left and right sides of the interior of the shell (1) are fixedly connected to fixing rings (9), the left and right sides of the interior of the shell (1) are provided with sealing rings (10), the left and right sides of the interior of the shell (1) are slidably connected to sliding rings (11), the far sides of the two sealing rings (10) are threadedly connected to a plurality of bolts (12), the left and right sides of the shell (1) are fixedly connected to fixing tubes (13), the far sides of the two fixing tubes (13) are fixedly connected to transfer tubes (14), and the outsides of the two transfer tubes (14) are threadedly connected to connecting tubes (7).

2. A pressure reducing ball valve according to claim 1, characterized in that: The driving assembly comprises a plurality of fixed plates (4) and a rotating ring (5), one end of each of the plurality of fixed plates (4) is fixedly connected to the top of the rotating shaft (3), and the other end of each of the plurality of fixed plates (4) is fixedly connected to the inner wall of the rotating ring (5).

3. A pressure reducing ball valve according to claim 1, characterized in that: The adjacent sides of the two sealing rings (10) are in contact with the distant sides of the two fixing rings (9), and the distant sides of the two sealing rings (10) are in contact with the adjacent sides of the two sliding rings (11).

4. A pressure reducing ball valve according to claim 1, characterized in that: The bottom of the rotating shaft (3) passes through the top inner wall of the shell (1) and extends inwards, and the top of the rotating shaft (3) passes through the top inner wall of the shell (1) and extends outwards.

5. A pressure reducing ball valve according to claim 1, characterized in that: The outside of the ball valve (6) contacts the inner wall of the housing (1), and the left and right sides of the ball valve (6) contact the adjacent sides of the two fixing rings (9) respectively.

6. A pressure reducing ball valve according to claim 1, characterized in that: The sealing ring (10) is made of fluororubber, and the far sides of the two sliding rings (11) and the far sides of the two sealing rings (10) are both threadedly connected to the outside of the bolt (12).

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