High-sealing-performance ball valve

Abstract

The utility model relates to a ball valve with high sealing performance, which comprises a valve body and a connecting pipe, the connecting pipe is mounted on the side edge of the valve body, a valve rod is mounted at the top of the valve body, the bottom of the valve rod is connected to a valve ball in the valve body, a hand wheel is mounted at the top of the valve rod, a first flange is fixedly connected to the side edge of the valve body, and an inner groove is formed in the side edge of the first flange. The connecting pipe is inserted into the inner groove, a rubber sleeve is fixedly connected into the inner groove and tightly attached to the side surface of the connecting pipe, a second flange is fixedly connected to the side surface of the connecting pipe, an inner hole is formed in the side edge of the second flange, a first threaded groove is formed in the side edge of the first flange, and a first fixing bolt is arranged in the inner hole. The first fixing bolts are connected into the first threaded grooves, the upper protecting cover is installed at the top of the valve body, the lower protecting cover is installed at the bottom of the valve body, the hand wheel drives the valve rod, the valve rod drives the valve ball, opening and closing of the ball valve are achieved, operation is easy, fixation is enhanced, sealing is effectively achieved, leakage is avoided, the strength is improved, and the service life of a product is prolonged.

Description

Technical Field

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

[0002] Ball valves are mainly used in pipelines to cut off, distribute and change the flow direction of the medium. They can be closed tightly by simply rotating 90 degrees and applying a very small torque. Ball valves are widely used in industries such as oil refining, long-distance pipelines, chemicals, papermaking, pharmaceuticals, water conservancy, electricity, municipal administration and steel, and they play an important role in the national economy. The utility model patent with application number: CN202222187424.6 discloses a ball valve with high sealing performance, including a ball valve tube and an insulation layer. Water pipes are provided on both ends of the ball valve tube, and a rubber ring is provided on the outside of the water pipe. A tightening hoop is provided on the outside of the rubber ring, and a screw is installed on the upper end of the tightening hoop. A nut is provided on the rear end of the screw. The insulation layer is located on the outside of the ball valve tube; a protective shell is provided on the outside of the insulation layer, and a power supply compartment is installed below the protective shell; a battery is provided on the inner bottom wall of the power supply compartment, and an antifreeze component is provided on the upper end of the battery. The antifreeze component includes electric wires and electric heating wires. and a heating rod tube, and the upper end of the wire is connected to a heating wire, and a heating rod tube is arranged outside the heating wire; ball heads are arranged on the upper ends of the left and right walls inside the protective shell, and a trap door is arranged on the inner side of the ball head, and a handle is installed on the upper end of the trap door; a valve core is arranged inside the ball valve tube, and a water hole is arranged inside the valve core; rubber gaskets are arranged on both ends of the valve core, and a screw rod is connected to the upper end of the valve core; rubber gaskets are arranged on both ends of the valve core, and a screw rod is connected to the upper end of the valve core; a rotary block is arranged on the upper end of the screw rod, a screw rod is installed outside the ball valve tube, and a nut is arranged on the right end of the screw rod. However, the water pipe is pulled, and the water pipe is easy to separate from the ball valve tube, rubber ring and clamp, and the poor fixing effect of the water pipe affects its use. Utility Model Content

[0003] The utility model aims to solve the problems existing in the prior art and provide a high-sealing ball valve which can be easily operated, enhance fixation, effectively seal to avoid leakage, and improve strength to extend product life.

[0004] The utility model adopts a technical solution to solve its technical problems: this high-sealing ball valve comprises a valve body and a connecting pipe, the connecting pipe is installed on the side of the valve body, a valve stem is installed on the top of the valve body, the bottom of the valve stem is connected to the valve ball inside the valve body, a hand wheel is installed on the top of the valve stem, a first flange is fixedly connected to the side of the valve body, an inner groove is opened on the side of the first flange, the connecting pipe is inserted into the inner groove, a rubber sleeve is fixedly connected to the inner groove, the rubber sleeve is tightly attached to the side surface of the connecting pipe, a second flange is fixedly connected to the side surface of the connecting pipe, an inner hole is opened on the side of the second flange, a first threaded groove is opened on the side of the first flange, a first fixing bolt is arranged inside the inner hole, the first fixing bolt is connected to the first threaded groove, the first fixing bolt There are multiple ones, an upper protective cover is installed on the top of the valve body, and a lower protective cover is installed on the bottom of the valve body, a connecting pipe is obtained, one end of the connecting pipe is inserted into the inner groove, the rubber sleeve in the inner groove is in close contact with the side surface of the connecting pipe, and the second flange is on the side of the first flange, and multiple first fixing bolts are obtained. The multiple first fixing bolts pass through the multiple inner holes respectively, and the multiple first fixing bolts are threadedly connected with the multiple first thread grooves respectively, so that the connecting pipe is fixed and cannot be detached. Refer to this operation to complete the installation and fixation of another connecting pipe. When in use, turn the hand wheel, the hand wheel drives the valve stem, and the valve stem drives the valve ball to realize the opening and closing of the ball valve. The operation is simple to enhance the fixation, effective sealing to avoid leakage, and the strength is improved to extend the product life.

[0005] For further improvement, the diameters of the first flange and the second flange are equal, the inner diameters of the rubber sleeve and the connecting pipe are equal, and the connecting parts of the connecting pipe are unified inside and outside to reduce differences in the material flow process.

[0006] For further improvement, the upper protective cover has a hole on the top, a rubber hose is arranged inside the hole, the valve stem is inserted into the rubber hose, the upper protective cover and the lower protective cover form a closed space, and the rubber hose enhances the internal sealing effect.

[0007] Further improvement, the valve body is inside the upper protective cover and the lower protective cover, the first flange is outside the upper protective cover and the lower protective cover, the installation and removal of the connecting pipe are carried out outside the upper protective cover and the lower protective cover, the operation is simple and easy to use.

[0008] To further improve, the upper protective cover is provided with a groove on the side, the groove fits the side surface of the valve body, the lower protective cover is also provided with a groove, the upper protective cover is fixedly connected to the side with an upper fixing block, the lower protective cover is fixedly connected to the side with a lower fixing block, a mounting hole is provided inside the lower fixing block, a second threaded groove is provided at the bottom of the upper fixing block, a hand-tightening bolt is provided inside the mounting hole, the hand-tightening bolt is threadedly connected to the second threaded groove, there are multiple hand-tightening bolts, the multiple hand-tightening bolts respectively pass through the multiple mounting holes, the multiple hand-tightening bolts are respectively threadedly connected to the multiple second threaded grooves, the multiple upper fixing blocks are fixed to the multiple lower fixing blocks, and the installation and fixation of the upper protective cover and the lower protective cover are completed.

[0009] To be further improved, an observation window is provided on the front side of the upper protective cover, transparent glass is provided on the observation window, a hot air blower is installed on the top of the upper protective cover, and a transmission line is fixedly connected to the side of the hot air blower. In severe weather conditions, the hot air blower provides a suitable temperature to prevent the internal temperature of the upper and lower protective covers from being too low, effectively preventing the valve body from being affected by low temperature, and the observation window facilitates further observation.

[0010] To further improve, a hexagonal column is fixedly connected to the top of the valve stem, a connecting column is fixedly connected to the inside of the handwheel, a hexagonal groove is opened at the bottom of the connecting column, the hexagonal column and the hexagonal groove are plugged into each other, and the handwheel is installed using the hexagonal column and the hexagonal groove. When the handwheel is turned, the hexagonal groove and the hexagonal column interact with each other to realize the rotation of the valve stem.

[0011] For further improvement, a connecting hole is provided on the top of the connecting column, the connecting hole is connected to the hexagonal groove, a second fixing bolt is arranged inside the connecting hole, a third thread groove is provided on the top of the hexagonal column, the second fixing bolt is connected to the third thread groove, the second fixing bolt passes through the connecting hole and is threadedly connected to the third thread groove, thereby further fixing the handwheel and preventing the handwheel from detaching at the top of the valve stem.

[0012] The beneficial effects of the utility model are:

[0013] 1. Obtain a connecting pipe, insert one end of the connecting pipe into the inner groove, the rubber sleeve in the inner groove and the side surface of the connecting pipe are in close contact with each other, the second flange is on the side of the first flange, obtain multiple first fixing bolts, the multiple first fixing bolts pass through the multiple inner holes respectively, and the multiple first fixing bolts are threadedly connected with the multiple first thread grooves respectively, so that the connecting pipe is fixed and cannot be detached. Refer to this operation to complete the installation and fixation of another connecting pipe. When in use, turn the hand wheel, the hand wheel drives the valve stem, and the valve stem drives the valve ball to realize the opening and closing of the ball valve. The operation is simple to enhance the fixation, effective sealing to avoid leakage, and the strength is improved to extend the product life.

[0014] 2. Through multiple hand-tightening bolts passing through multiple mounting holes respectively, multiple hand-tightening bolts are threadedly connected with multiple second thread grooves respectively, multiple upper fixing blocks are fixed with multiple lower fixing blocks, and the installation and fixation of the upper and lower protective covers are completed. In severe weather conditions, the hot air blower provides a suitable temperature to prevent the internal temperature of the upper and lower protective covers from being too low, effectively preventing the valve body from being affected by low temperature, and the observation window facilitates further observation.

[0015] 3. Use the handwheel to install using the hexagonal prism and the hexagonal groove. When the handwheel is turned, the hexagonal groove interacts with the hexagonal prism to realize the rotation of the valve stem. The second fixing bolt passes through the connecting hole and is threadedly connected to the third thread groove to further fix the handwheel and prevent the handwheel from detaching at the top of the valve stem. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a diagram showing the hand-tightened bolt activity of the utility model;

[0019] Figure 4 This is a diagram showing the installation of the connecting pipe of the utility model;

[0020] Figure 5 It is a front view of the structure of the utility model;

[0021] Figure 6 For the utility model Figure 5 Enlarged view of point B in the middle;

[0022] Figure 7 This is a diagram showing the activity of the second fixing bolt of the utility model;

[0023] Figure 8 This is a bottom display diagram of the hand wheel of the utility model.

[0024] Explanation of the reference numerals: 1. valve body; 2. connecting pipe; 3. valve stem; 4. hand wheel; 5. first flange; 6. inner groove; 7. rubber sleeve; 8. second flange; 9. inner hole; 10. first thread groove; 11. first fixing bolt; 12. upper protective cover; 13. lower protective cover; 14. groove; 15. upper fixing block; 16. lower fixing block; 17. mounting hole; 18. second thread groove; 19. hand bolt; 20. observation window; 21. hot air blower; 22. transmission line; 23. hexagonal prism; 24. connecting column; 25. hexagonal groove; 26. connecting hole; 27. second fixing bolt; 28. third thread groove. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-8 This embodiment is further described:

[0026] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown: In this embodiment, a high-sealing ball valve includes a valve body 1 and a connecting pipe 2. The connecting pipe 2 is installed on the side of the valve body 1. A valve stem 3 is installed on the top of the valve body 1. The bottom of the valve stem 3 is connected to the valve ball inside the valve body 1. A hand wheel 4 is installed on the top of the valve stem 3. A first flange 5 is fixedly connected to the side of the valve body 1. An inner groove 6 is opened on the side of the first flange 5. The connecting pipe 2 is inserted into the inner groove 6. A rubber sleeve 7 is fixedly connected to the inner groove 6. The rubber sleeve 7 is tightly attached to the side surface of the connecting pipe 2. A second flange 8 is fixedly connected to the side surface of the connecting pipe 2. An inner hole 9 is opened on the side of the second flange 8. The side of the first flange 5 opens There is a first thread groove 10, and a first fixing bolt 11 is arranged inside the inner hole 9. The first fixing bolt 11 is connected to the inside of the first thread groove 10. There are multiple first fixing bolts 11. An upper protective cover 12 is installed on the top of the valve body 1, and a lower protective cover 13 is installed on the bottom of the valve body 1. The diameters of the first flange 5 and the second flange 8 are equal, and the inner hole diameters of the rubber sleeve 7 and the connecting pipe 2 are equal. There is a hole on the top of the upper protective cover 12, and there is a rubber hose inside the hole. The valve stem 3 is inserted into the rubber hose, the valve body 1 is inside the upper protective cover 12 and the lower protective cover 13, and the first flange 5 is outside the upper protective cover 12 and the lower protective cover 13.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown: a groove 14 is provided on the side of the upper protective cover 12, and the groove 14 fits the side surface of the valve body 1. The lower protective cover 13 is also provided with a groove 14. An upper fixing block 15 is fixedly connected to the side of the upper protective cover 12, and a lower fixing block 16 is fixedly connected to the side of the lower protective cover 13. A mounting hole 17 is provided inside the lower fixing block 16. A second thread groove 18 is provided at the bottom of the upper fixing block 15. A hand bolt 19 is provided inside the mounting hole 17. The hand bolt 19 is threadedly connected to the second thread groove 18. There are multiple hand bolts 19. An observation window 20 is provided on the front side of the upper protective cover 12. The observation window 20 is provided with transparent glass. A hot air blower 21 is installed on the top of the upper protective cover 12, and a transmission line 22 is fixedly connected to the side of the hot air blower 21.

[0028] like Figure 6-8 As shown: a hexagonal column 23 is fixedly connected to the top of the valve stem 3, a connecting column 24 is fixedly connected inside the handwheel 4, a hexagonal groove 25 is provided at the bottom of the connecting column 24, the hexagonal column 23 and the hexagonal groove 25 are plugged into each other, a connecting hole 26 is provided at the top of the connecting column 24, the connecting hole 26 is connected to the hexagonal groove 25, a second fixing bolt 27 is arranged inside the connecting hole 26, a third threaded groove 28 is provided at the top of the hexagonal column 23, and the second fixing bolt 27 is connected to the third threaded groove 28.

[0029] When the utility model is in use: obtain a connecting pipe 2, one end of the connecting pipe 2 is inserted into the inner groove 6, the rubber sleeve 7 in the inner groove 6 and the side surface of the connecting pipe 2 are tightly attached to each other, the second flange 8 is on the side of the first flange 5, obtain multiple first fixing bolts 11, the multiple first fixing bolts 11 respectively pass through the multiple inner holes 9, the multiple first fixing bolts 11 are respectively threadedly connected with the multiple first thread grooves 10, the connecting pipe 2 is fixed and cannot be detached, and the installation and fixation of another connecting pipe 2 is completed with reference to this operation, the upper protective cover 12 is obtained, the rubber hose set on the upper protective cover 12 is inserted from the top of the valve stem 3, the upper protective cover 12 is moved down as a whole, the groove 14 of the upper protective cover 12 fits the side surface of the valve body 1, the lower protective cover 13 is obtained, the groove 14 of the lower protective cover 13 fits the side surface of the valve body 1, the upper fixing block 15 corresponds to the lower fixing block 16, the mounting hole 17 and the second thread groove 18 correspond to each other, obtain multiple hand-tightening bolts 19, the multiple hand-tightening bolts 19 respectively pass through the multiple mounting holes 17, the multiple hand-tightening bolts 19 are respectively connected with the multiple The second thread groove 18 is threadedly connected, and the multiple upper fixing blocks 15 are fixed with the multiple lower fixing blocks 16 to complete the installation and fixing of the upper protective cover 12 and the lower protective cover 13. The handwheel 4 is obtained, and the hexagonal groove 25 at the bottom of the connecting column 24 is plugged into the hexagonal column 23 at the top of the valve stem 3. The second fixing bolt 27 is obtained, and the second fixing bolt 27 passes through the connecting hole 26 and is threadedly connected with the third thread groove 28 to further fix the handwheel 4 to prevent the handwheel 4 from detaching from the top of the valve stem 3. When in use, the handwheel 4 is turned, the hexagonal groove 25 interacts with the hexagonal column 23, the handwheel 4 drives the valve stem 3, and the valve stem 3 drives the valve ball to realize the opening and closing of the ball valve. The operation is simple and the fixation is enhanced. The effective seal avoids leakage, the strength is improved and the product life is extended. The valve body 1 is effectively protected by the upper protective cover 12 and the lower protective cover 13. In severe weather conditions, the hot air blower 21 provides a suitable temperature to prevent the internal temperature of the upper protective cover 12 and the lower protective cover 13 from being too low, effectively preventing the valve body 1 from being affected by low temperature, and the observation window 20 is convenient for further observation.

[0030] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A high-sealing ball valve, comprising a valve body (1) and a connecting pipe (2), characterized in that: The connecting pipe (2) is installed on the side of the valve body (1), a valve stem (3) is installed on the top of the valve body (1), the bottom of the valve stem (3) is connected to the valve ball inside the valve body (1), a hand wheel (4) is installed on the top of the valve stem (3), a first flange (5) is fixedly connected to the side of the valve body (1), an inner groove (6) is opened on the side of the first flange (5), the connecting pipe (2) is inserted into the inner groove (6), a rubber sleeve (7) is fixedly connected to the inner groove (6), and the rubber sleeve (7) is tightly attached to the side surface of the connecting pipe (2). The side surface of the connecting pipe (2) is fixedly connected with a second flange (8), an inner hole (9) is provided on the side of the second flange (8), a first thread groove (10) is provided on the side of the first flange (5), a first fixing bolt (11) is arranged inside the inner hole (9), the first fixing bolt (11) is connected to the inside of the first thread groove (10), there are a plurality of first fixing bolts (11), an upper protective cover (12) is installed on the top of the valve body (1), and a lower protective cover (13) is installed on the bottom of the valve body (1).

2. A high sealing ball valve according to claim 1, characterized in that: The diameters of the first flange (5) and the second flange (8) are equal, and the inner diameters of the rubber sleeve (7) and the connecting pipe (2) are equal.

3. A high sealing ball valve according to claim 1, characterized in that: The top of the upper protective cover (12) is provided with a hole, a rubber hose is provided inside the hole, and the valve stem (3) is inserted into the rubber hose.

4. A high sealing ball valve according to claim 1, characterized in that: The valve body (1) is inside the upper protective cover (12) and the lower protective cover (13), and the first flange (5) is outside the upper protective cover (12) and the lower protective cover (13).

5. The high sealing ball valve according to claim 1 is characterized in that: The upper protective cover (12) is provided with a groove (14) on the side, and the groove (14) is in contact with the side surface of the valve body (1). The lower protective cover (13) is also provided with a groove (14). The upper protective cover (12) is fixedly connected to an upper fixing block (15) on the side, and the lower protective cover (13) is fixedly connected to a lower fixing block (16) on the side. The lower fixing block (16) is provided with a mounting hole (17) inside. The upper fixing block (15) is provided with a second threaded groove (18) at the bottom. A hand-tightening bolt (19) is provided inside the mounting hole (17). The hand-tightening bolt (19) is threadedly connected to the second threaded groove (18). There are a plurality of hand-tightening bolts (19).

6. The high sealing ball valve according to claim 1 is characterized in that: The upper protective cover (12) is provided with an observation window (20) on the front side, the observation window (20) is provided with transparent glass, a hot air blower (21) is installed on the top of the upper protective cover (12), and a transmission line (22) is fixedly connected to the side of the hot air blower (21).

7. The high sealing ball valve according to claim 1 is characterized in that: A hexagonal column (23) is fixedly connected to the top of the valve stem (3), a connecting column (24) is fixedly connected inside the hand wheel (4), a hexagonal groove (25) is provided at the bottom of the connecting column (24), and the hexagonal column (23) and the hexagonal groove (25) are plugged into each other.

8. A high sealing ball valve according to claim 7, characterized in that: A connecting hole (26) is provided at the top of the connecting column (24), the connecting hole (26) is connected to the hexagonal groove (25), a second fixing bolt (27) is arranged inside the connecting hole (26), a third thread groove (28) is provided at the top of the hexagonal column (23), and the second fixing bolt (27) is connected to the third thread groove (28).

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