High-pressure electric ball valve

Abstract

The utility model discloses a high-pressure electric ball valve, which relates to the technical field of ball valves and comprises a valve body, a valve cover is arranged on one side of the valve body, flange plates are mounted on one side of the valve body and one side of the valve cover, mounting grooves are formed in the valve body and the valve cover, first sealing rings are mounted on the inner walls of the mounting grooves in the valve cover, and second sealing rings are mounted on the inner walls of the mounting grooves in the valve cover. A second sealing ring is arranged in the mounting groove in the valve body, a plurality of cavities are formed in the outer side of the second sealing ring, a plurality of second fixing columns are fixed to the inner wall of the mounting groove in the valve body, a fixing ball is mounted at one end of each second fixing column, and the second fixing columns and the fixing balls are integrally formed and designed. The second fixing column and the fixing ball are used for being inserted into the cavity, the fixing ball can limit movement of the second sealing ring, the fixing column can support the second sealing ring, and therefore the second sealing ring has the good pressure resisting effect, is stable in position and not prone to deformation and can be located in the high-pressure environment for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a high-pressure electric ball valve. Background Art

[0002] A ball valve is a valve whose opening and closing parts are driven by the valve stem and rotate around the axis of the ball valve. It is often used for fluid regulation and control. Common ball valves can be generally divided into pneumatic ball valves, electric ball valves, and manual ball valves according to the driving method.

[0003] For example, the patent for "a high-pressure electric ball valve" with the national authorization announcement number "CN 220706552 U" states: "The utility model is provided with a series of structures to guide the medium through the ball valve, thereby reducing the impact loss of the medium on the assembly of the ball valve housing and the inner wall, increasing the contact area of ​​the ball valve assembly, and enhancing the sealing and leak-proof performance of the ball valve assembly, with small sealing loss and reliable sealing";

[0004] The sealing ring in this patent is simply installed. The sealing ring on the valve body at the water inlet end is under high pressure for a long time and is prone to deformation or displacement, which may lead to poor sealing of the device. In view of this, in-depth research was conducted on the above-mentioned issues, resulting in this case. Utility Model Content

[0005] The utility model aims to provide a high-pressure electric ball valve to solve the problem that the sealing ring at the water inlet end mentioned in the above background technology is easily displaced or deformed during use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-pressure electric ball valve, comprising a valve body, a valve cover is arranged on one side of the valve body, and a flange is installed on one side of the valve body and the valve cover, the inside of the valve body and the valve cover are provided with a mounting groove, a first sealing ring is installed on the inner wall of the mounting groove inside the valve cover, a second sealing ring is arranged inside the mounting groove inside the valve body, and a plurality of cavities are arranged on the outer side of the second sealing ring, a plurality of second fixing columns are fixed on the inner wall of the mounting groove inside the valve body, and a fixing ball is installed on one end of each of the second fixing columns, the second fixing column and the fixing ball are of an integrated molding design, and the shape and size of the second fixing column and the fixing ball are the same as the shape and size of the cavity, and a blocking ball is arranged inside the valve body and the valve cover.

[0007] Preferably, a fixing tube is installed at the top of the valve body, and a mounting tube is fixed at the top of the fixing tube, the mounting tube is communicated with the fixing tube, a connecting groove is opened at the top of the blocking ball, a valve stem is arranged inside the fixing tube, and the bottom end of the valve stem extends to the inside of the connecting groove.

[0008] Preferably, a plurality of guide strips are installed at the bottom end of the outer wall of the valve stem, a corresponding number of guide slots matching the guide strips are opened on the inner wall of the connecting slot, and the top ends of the guide slots extend to the top end of the connecting slot.

[0009] Preferably, a servo motor is installed at one end of the mounting cylinder, and the output end of the servo motor extends to the interior of the mounting cylinder and is installed with a worm, one end of the worm is connected to one end inside the mounting cylinder through a rotating shaft, and the worm is detachably connected to the output end of the servo motor and the rotating shaft, the top end of the valve stem extends to the interior of the mounting cylinder, and a worm wheel is provided above the valve stem, the worm wheel is meshed with the worm, and a cover is installed above the mounting cylinder.

[0010] Preferably, a first fixing column is fixed to the top of the valve stem, and the cross-sectional shape of the first fixing column is a regular pentagon, a through groove matching the first fixing column is vertically penetrated at the central position of the top of the worm wheel, and the first fixing column passes through the inside of the through groove, the cross-sectional area of ​​the valve stem is larger than the cross-sectional area of ​​the first fixing column, and the bottom end of the worm wheel and the top end of the valve stem are on the same horizontal plane.

[0011] Preferably, a groove is provided at the top of the worm gear, a fixing cylinder is fixed to the bottom end of the cover, and a plurality of balls are embedded and installed at the bottom end of the fixing cylinder, the bottom ends of the balls extend to the bottom of the fixing cylinder, and the bottom ends of the balls extend to the inside of the groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Use the second fixing column and the fixing ball to insert into the cavity. The fixing ball can limit the movement of the second sealing ring, and the fixing column can support the second sealing ring, so that the second sealing ring has a better pressure resistance, its position is stable, it is not easy to deform, and it can be in a high-pressure environment for a long time;

[0014] 2. A single valve body cannot continue to restrict the blocking ball. When the valve cover is removed from the valve body, the valve stem is removed from the blocking ball, and the blocking ball can be directly taken out from the inside of the valve body. The worm, worm wheel and valve stem of the device can all be taken out after the cover is opened, so that a certain part of the device can be quickly replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the installation tube of the utility model;

[0017] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 4 It is a schematic diagram of the structure of the lid of the utility model when viewed from above.

[0019] In the figure: 1. valve body; 2. connecting groove; 3. fixing pipe; 4. cover; 5. mounting cylinder; 6. valve stem; 7. first sealing ring; 8. valve cover; 9. flange; 10. blocking ball; 11. groove; 12. servo motor; 13. worm; 14. first fixing column; 15. worm gear; 16. second fixing column; 17. fixing ball; 18. cavity; 19. mounting groove; 20. second sealing ring; 21. fixing cylinder; 22. ball. 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] Example: See Figure 1-4 A high-pressure electric ball valve comprises a valve body 1, a valve cover 8 is arranged on one side of the valve body 1, and a flange 9 is installed on one side of the valve body 1 and the valve cover 8, a mounting groove 19 is provided inside the valve body 1 and the valve cover 8, a first sealing ring 7 is installed on the inner wall of the mounting groove 19 inside the valve cover 8, a second sealing ring 20 is arranged inside the mounting groove 19 inside the valve body 1, and a plurality of cavities 18 are provided outside the second sealing ring 20, a plurality of second fixing columns 16 are fixed on the inner wall of the mounting groove 19 inside the valve body 1, and a fixing ball 17 is installed on one end of each of the second fixing columns 16, the second fixing columns 16 and the fixing balls 17 are of an integrated molding design, and the shapes and sizes of the second fixing columns 16 and the fixing balls 17 are the same as those of the cavities 18, and a blocking ball 10 is provided inside the valve body 1 and the valve cover 8;

[0022] Specifically, Figure 1 and Figure 3 As shown, when installing the second sealing ring 20, the second fixing column 16 and the fixing ball 17 are inserted into the interior of the cavity 18, the fixing ball 17 can limit the movement of the second sealing ring 20, and the second fixing column 16 can support the second sealing ring 20, so that the second sealing ring 20 has a better pressure resistance, its position is stable, it is not easy to deform, and it can be in a high-pressure environment for a long time.

[0023] The device essentially only improves the installation of the sealing ring, and the basic working principle of the rest of the device is the same as that of the ball valve in the prior art, so components such as packing are not fully mentioned and described in this article.

[0024] A fixing tube 3 is installed at the top of the valve body 1, and a mounting tube 5 is fixed at the top of the fixing tube 3, the mounting tube 5 is connected with the fixing tube 3, a connecting groove 2 is opened at the top of the blocking ball 10, a valve stem 6 is arranged inside the fixing tube 3, and the bottom end of the valve stem 6 extends to the inside of the connecting groove 2;

[0025] A plurality of guide strips are installed at the bottom end of the outer wall of the valve stem 6, and a corresponding number of guide slots matching the guide strips are opened on the inner wall of the connecting slot 2, and the top ends of the guide slots extend to the top end of the connecting slot 2;

[0026] A servo motor 12 is installed at one end of the installation cylinder 5, and the output end of the servo motor 12 extends to the inside of the installation cylinder 5 and is installed with a worm 13. One end of the worm 13 is connected to one end of the inside of the installation cylinder 5 through a rotating shaft. The worm 13 is detachably connected to the output end of the servo motor 12 and the rotating shaft. The top end of the valve stem 6 extends to the inside of the installation cylinder 5, and a worm gear 15 is arranged above the valve stem 6. The worm gear 15 is meshed with the worm 13. A cover 4 is installed above the installation cylinder 5.

[0027] A first fixing column 14 is fixed to the top of the valve stem 6, and the cross-sectional shape of the first fixing column 14 is a regular pentagon. A through groove matching the first fixing column 14 is vertically penetrated at the central position of the top of the worm wheel 15, and the first fixing column 14 passes through the inside of the through groove. The cross-sectional area of ​​the valve stem 6 is larger than the cross-sectional area of ​​the first fixing column 14, and the bottom end of the worm wheel 15 and the top end of the valve stem 6 are on the same horizontal plane;

[0028] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, when the device is working, the servo motor 12 is started to drive the worm 13 to rotate, and the worm 13 can drive the worm wheel 15 to rotate. The worm wheel 15 applies force to the first fixed column 14 through the through groove, causing the valve stem 6 to rotate accordingly, and the valve stem 6 can subsequently drive the blocking ball 10 to rotate. At the same time, the worm wheel 15, the valve stem 6 and the blocking ball 10 can be separated from each other, and it is also very convenient to disassemble. By removing the worm 13 from the output end of the servo motor 12 and the rotating shaft, the worm 13 and the worm wheel 15 can also be separated, so that a certain part of the device can be quickly replaced.

[0029] A groove 11 is formed at the top of the worm wheel 15, a fixing cylinder 21 is fixed at the bottom of the cover 4, and a plurality of balls 22 are embedded and installed at the bottom of the fixing cylinder 21, and the bottom ends of the balls 22 extend to the bottom of the fixing cylinder 21, and the bottom ends of the balls 22 extend to the inside of the groove 11;

[0030] Specifically, Figure 2 and Figure 4As shown, when the cover 4 is installed on the mounting tube 5, the ball 22 can be pressed into the groove 11 to hold it, and at the same time, the bottom end of the worm gear 15 is supported by the valve stem 6, so the position of the worm gear 15 can be quickly fixed without longitudinal jumping, and it can work stably. On the contrary, when the cover 4 is removed, the top end of the worm gear 15 is no longer restricted, so it can be removed at an appropriate time.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-pressure electric ball valve, comprising a valve body (1), characterized in that: A valve cover (8) is provided on one side of the valve body (1), and a flange (9) is installed on one side of the valve body (1) and the valve cover (8). The valve body (1) and the valve cover (8) are both provided with a mounting groove (19) inside. A first sealing ring (7) is installed on the inner wall of the mounting groove (19) inside the valve cover (8). A second sealing ring (20) is provided inside the mounting groove (19) inside the valve body (1), and a plurality of cavities are provided on the outer side of the second sealing ring (20). (18), a plurality of second fixing columns (16) are fixed to the inner wall of the mounting groove (19) inside the valve body (1), and a fixing ball (17) is installed at one end of each of the second fixing columns (16), the second fixing columns (16) and the fixing balls (17) are of an integrated molding design, and the shape and size of the second fixing columns (16) and the fixing balls (17) are the same as the shape and size of the cavity (18), and a blocking ball (10) is arranged inside the valve body (1) and the valve cover (8).

2. A high-pressure electric ball valve according to claim 1, characterized in that: A fixing tube (3) is installed at the top of the valve body (1), and a mounting tube (5) is fixed at the top of the fixing tube (3); the mounting tube (5) is communicated with the fixing tube (3); a connecting groove (2) is provided at the top of the blocking ball (10); a valve stem (6) is provided inside the fixing tube (3), and the bottom end of the valve stem (6) extends to the inside of the connecting groove (2).

3. A high-pressure electric ball valve according to claim 2, characterized in that: A plurality of guide strips are installed at the bottom end of the outer wall of the valve stem (6), and a corresponding number of guide slots matching the guide strips are opened on the inner wall of the connecting slot (2), and the top ends of the guide slots extend to the top end of the connecting slot (2).

4. A high-pressure electric ball valve according to claim 2, characterized in that: A servo motor (12) is installed at one end of the mounting cylinder (5), and the output end of the servo motor (12) extends to the interior of the mounting cylinder (5) and is installed with a worm (13), one end of the worm (13) is connected to one end of the interior of the mounting cylinder (5) via a rotating shaft, and the worm (13) is detachably connected to the output end of the servo motor (12) and the rotating shaft, the top end of the valve stem (6) extends to the interior of the mounting cylinder (5), and a worm wheel (15) is arranged above the valve stem (6), the worm wheel (15) is meshed with the worm (13), and a cover (4) is installed above the mounting cylinder (5).

5. A high-pressure electric ball valve according to claim 4, characterized in that: A first fixing column (14) is fixed to the top end of the valve stem (6), and the cross-sectional shape of the first fixing column (14) is a regular pentagon. A through groove matching the first fixing column (14) is vertically penetrated at the central position of the top end of the worm wheel (15), and the first fixing column (14) passes through the inside of the through groove. The cross-sectional area of ​​the valve stem (6) is larger than the cross-sectional area of ​​the first fixing column (14), and the bottom end of the worm wheel (15) and the top end of the valve stem (6) are on the same horizontal plane.

6. A high-pressure electric ball valve according to claim 4, characterized in that: The top end of the worm wheel (15) is provided with a groove (11), the bottom end of the cover (4) is fixed with a fixing cylinder (21), and the bottom end of the fixing cylinder (21) is embedded with a plurality of balls (22), the bottom ends of the balls (22) are extended to the bottom of the fixing cylinder (21), and the bottom ends of the balls (22) are extended to the inside of the groove (11).

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