Quick-assembly type multifunctional ball valve

Abstract

The utility model belongs to the technical field of ball valves, and particularly relates to a quick-assembly type multifunctional ball valve which comprises a valve body, a valve cover and a ball core, a fixing ring is fixedly sleeved on the outer side of the valve cover, four screws are in threaded connection with the outer side of the fixing ring, the fixing ring is fixedly sleeved on the outer side of the valve body through the four screws, and the ball core is sleeved on the outer side of the valve cover. A limiting sealing mechanism is arranged between the valve deck and the valve body, the top of the valve body is fixedly connected with a regulation and control box, and one side of the regulation and control box is fixedly connected with an adjusting motor. The novel ball valve is reasonable in structural design, stable installation and rapid disassembly are facilitated, later replacement of the ball core is facilitated, the multiple trapezoidal blocks are extruded inwards through the multiple extrusion heads, the multiple trapezoidal blocks extrude the annular air bag, then the annular air bag extrudes the rubber ring towards the inner side, and the sealing effect is improved. Therefore, the rubber ring can firmly abut against the outer side of the valve cover, and the sealing performance of connection between the valve cover and the valve body is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a quick-installation multifunctional ball valve. Background Technique

[0002] Ball valves are widely used in industries such as petroleum refining, long-distance pipelines, chemical engineering, papermaking, pharmaceuticals, water conservancy, electric power, municipal engineering, and steel. They play a crucial role in the national economy. It has an operation of rotating 90 degrees. The plug body is a sphere, and there is a circular through-hole or passage passing through its axis. Due to the long-term friction between the valve core and the valve seat caused by multiple valve openings and closings, leakage is likely to occur easily. Moreover, the torque required for opening and closing a common ball valve is very large. Even if the valve core and the valve body are not opened multiple times, there may also be a phenomenon of poor sealing; the ball valve needs to be maintained to a certain extent during use.

[0003] However, the ball valves in the related technologies require professional installation tools to install and disassemble the ball core, resulting in troublesome and inconvenient disassembly and assembly, time-consuming and laborious, greatly reducing the efficiency of maintaining the ball valve, and the sealing performance is poor during installation, and leakage is likely to occur. Therefore, we propose a quick-installation multifunctional ball valve to solve the above problems. Summary of the Invention

[0004] The purpose of the utility model is to solve the above-mentioned disadvantages and propose a quick-installation multifunctional ball valve.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A quick-installation multifunctional ball valve includes a valve body, a valve cover and a ball core. A fixed ring is fixedly sleeved on the outer side of the valve cover. Four screws are threadedly connected to the outer side of the fixed ring. The fixed ring is fixedly sleeved on the outer side of the valve body through the four screws. A limit sealing mechanism is arranged between the valve cover and the valve body. A control box is fixedly connected to the top of the valve body. An adjusting motor is fixedly connected to one side of the control box. A driving bevel gear is fixedly connected to the output shaft of the adjusting motor. A hollow shaft is rotatably connected to the upper and lower inner walls of the control box. A driven bevel gear is fixedly sleeved on the outer side of the hollow shaft. The driving bevel gear meshes with the driven bevel gear. A valve rod is arranged in the hollow shaft. A square rod is fixedly connected to the lower end of the valve rod. A square groove is opened at the top of the ball core. The square rod is movably clamped in the square groove. A disassembly and assembly mechanism is arranged between the valve rod and the hollow shaft.

[0007] Preferably, sealing rings are fixedly connected to the inner sides of the valve body and the valve cover. The ball core is movably abutted between the two sealing rings.

[0008] Preferably, bearings are fixedly connected to the upper and lower inner walls of the control box, and the hollow shaft is fixedly sleeved in the inner rings of the two bearings.

[0009] Preferably, the disassembly and assembly mechanism includes a compression spring and a pull rod fixedly connected to the top end of the valve stem. The top end of the compression spring is fixedly connected to the inner wall of the top end of the hollow shaft. Limiting grooves are formed in the inner walls on both sides of the hollow shaft, and limiting blocks are fixedly connected to both sides of the valve stem. The two limiting blocks are respectively slidably sleeved in the corresponding limiting grooves.

[0010] Preferably, a handle is fixedly connected to the top end of the pull rod.

[0011] Preferably, the limiting and sealing mechanism includes a plurality of extrusion heads fixedly connected to one side of the valve cover and an annular airbag fixedly arranged in the valve body. A rubber ring is fixedly connected to the inner side of the annular airbag, and a plurality of trapezoidal blocks are fixedly connected to the outer side of the annular airbag. The extrusion heads are movably abutted against the outer inclined surfaces of the trapezoidal blocks. A positioning rod is fixedly connected to one end of the extrusion head, and an annular groove is formed in the outer side of the valve stem. The corresponding positioning rod is movably inserted into the corresponding annular groove.

[0012] Preferably, a plurality of grooves are formed in one side of the valve body, a plurality of positioning grooves are formed in the inner wall of one side of the grooves, the positioning rod is slidably sleeved in the corresponding positioning groove, and the extrusion head is slidably sleeved in the corresponding groove.

[0013] Preferably, a flared groove is formed in the inner wall of the square groove, and the flared groove is matched with the square rod.

[0014] In the present utility model, for the quick-installation and multi-functional ball valve, when it is necessary to disassemble and replace the ball core after long-term use, first loosen the four screws so that the screws do not fix the fixing ring, pull out the valve cover, the extrusion head and the positioning rod to the right. At this time, the extrusion head does not extrude the trapezoidal block, and at the same time, one of the positioning rods disengages from the annular groove and does not limit the valve stem. At this time, pull the pull rod upward through the handle, and the pull rod drives the valve stem and the square rod to move upward and disengage from the square groove, so as not to clamp and fix the ball core. At this time, the ball core can be taken out of the valve body.

[0015] In the present utility model, for the quick-installation multifunctional ball valve, the square groove and the flared groove of the new ball core face upwards, and then the ball core is placed into the valve body. After loosening the handle, under the elastic force of the compression spring, the valve stem and the square rod move downward and are inserted into the square groove, thereby enabling the clamping and fixing of the ball core. Then, the positioning rod is aligned with the positioning groove, and the valve cover, the extrusion head, and the positioning rod are squeezed towards the left, causing the positioning rod to be inserted into the positioning groove. One of the positioning rods is inserted into the annular groove, thereby enabling the upper and lower limit fixing of the valve stem, avoiding the situation where the square rod disengages from the square groove due to the upward movement of the valve stem, improving the firmness of the connection between the valve stem and the ball core. At the same time, multiple extrusion heads squeeze multiple trapezoidal blocks towards the inside, causing the multiple trapezoidal blocks to squeeze the annular airbag, thereby causing the annular airbag to expand towards the inside and squeeze the rubber ring, so that the rubber ring can firmly abut against the outside of the valve cover, greatly improving the sealing performance of the connection between the valve cover and the valve body and avoiding leakage. Finally, the screw is tightened to fix the valve cover and the fixing ring on the valve body;

[0016] The structure of the present utility model is reasonably designed, which is not only conducive to stable installation and rapid disassembly, facilitating the replacement of the ball core in the later stage, but also by multiple extrusion heads squeezing multiple trapezoidal blocks towards the inside, causing the multiple trapezoidal blocks to squeeze the annular airbag, thereby causing the annular airbag to squeeze the rubber ring towards the inside, so that the rubber ring can firmly abut against the outside of the valve cover, greatly improving the sealing performance of the connection between the valve cover and the valve body. Brief Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a quick-installation multifunctional ball valve proposed by the present utility model;

[0018] Figure 2 is an overall cross-sectional view of a quick-installation multifunctional ball valve proposed by the present utility model;

[0019] Figure 3 is Figure 2 a schematic structural diagram of part A in

[0020] Figure 4 is Figure 2 a schematic structural diagram of part B in

[0021] Figure 5 is a schematic structural diagram of the valve cover, extrusion head, positioning rod, and valve stem of a quick-installation multifunctional ball valve proposed by the present utility model.

[0022] In the figure: 1. Valve body; 2. Valve cover; 3. Fixed ring; 4. Screw; 5. Regulation box; 6. Regulation motor; 7. Hollow shaft; 8. Disassembly and assembly mechanism; 9. Limit and sealing mechanism; 10. Bearing; 11. Ball core; 12. Sealing ring; 13. Valve rod; 14. Driven bevel gear; 15. Driving bevel gear; 16. Flared groove; 17. Square rod; 18. Square groove; 81. Limit block; 82. Limit groove; 83. Pull rod; 84. Compression spring; 85. Handle; 91. Annular groove; 92. Rubber ring; 93. Annular airbag; 94. Trapezoidal block; 95. Groove; 96. Positioning groove; 97. Positioning rod; 98. Extrusion head. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Refer to Figures 1 - 5 , a quick-installation multifunctional ball valve, including a valve body 1, a valve cover 2 and a ball core 11. A fixed ring 3 is fixedly sleeved on the outside of the valve cover 2. Four screws 4 are threadedly connected to the outside of the fixed ring 3. The fixed ring 3 is fixedly sleeved on the outside of the valve body 1 through the four screws 4. A limit and sealing mechanism 9 is arranged between the valve cover 2 and the valve body 1. A regulation box 5 is fixedly connected to the top of the valve body 1. An adjustment motor 6 is fixedly connected to one side of the regulation box 5. A driving bevel gear 15 is fixedly connected to the output shaft of the adjustment motor 6. The upper and lower inner walls of the regulation box 5 are rotatably connected with a hollow shaft 7. A driven bevel gear 14 is fixedly sleeved on the outside of the hollow shaft 7. The driving bevel gear 15 meshes with the driven bevel gear 14. A valve rod 13 is arranged in the hollow shaft 7. A square rod 17 is fixedly connected to the low end of the valve rod 13. A square groove 18 is opened at the top of the ball core 11. The square rod 17 is movably clamped in the square groove 18. A disassembly and assembly mechanism 8 is arranged between the valve rod 13 and the hollow shaft 7.

[0025] Furthermore, sealing rings 12 are fixedly connected to the inner sides of the valve body 1 and the valve cover 2. The ball core 11 is movably abutted between the two sealing rings 12. Through the arrangement of the two sealing rings 12, the sealing performance of the connection between the valve body 1, the valve cover 2 and the ball core 11 is improved.

[0026] Furthermore, bearings 10 are fixedly connected to the upper and lower inner walls of the regulation box 5. The hollow shaft 7 is fixedly sleeved in the inner rings of the two bearings 10, which can support the hollow shaft 7 and make its rotation more stable.

[0027] Furthermore, refer to Figures 1 - 3The disassembly and assembly mechanism 8 includes a compression spring 84 and a pull rod 83 fixedly connected to the top end of the valve stem 13. The top end of the compression spring 84 is fixedly connected to the top inner wall of the hollow shaft 7. Limiting grooves 82 are provided on the inner walls on both sides of the hollow shaft 7. Limiting blocks 81 are fixedly connected to both sides of the valve stem 13. The two limiting blocks 81 are slidably sleeved in the corresponding limiting grooves 82 respectively.

[0028] The above scheme is adopted: pull the pull rod 83 upward, and the pull rod 83 drives the valve stem 13 and the square rod 17 to move upward and disengage from the square groove 18. At this time, the ball core 11 can be taken out of the valve body 1. When the ball core 11 is put in, release the handle 85. At this time, under the elastic force of the compression spring 84, the valve stem 13 and the square rod 17 move downward and insert into the square groove 18, so that the ball core 11 can be clamped and fixed.

[0029] Furthermore, a handle 85 is fixedly connected to the top of the pull rod 83 to facilitate pulling the pull rod 83 .

[0030] Further, see Figure 2 , Figure 4 and Figure 5 The limiting sealing mechanism 9 includes a plurality of extrusion heads 98 fixedly connected to one side of the valve cover 2, and an annular airbag 93 fixedly arranged in the valve body 1. A rubber ring 92 is fixedly connected to the inner side of the annular airbag 93, and a plurality of trapezoidal blocks 94 are fixedly connected to the outer side of the annular airbag 93. The extrusion head 98 movably abuts against the outer inclined surface of the trapezoidal block 94. One end of the extrusion head 98 is fixedly connected to a positioning rod 97. An annular groove 91 is provided on the outer side of the valve stem 13, and the corresponding positioning rod 97 is movably inserted into the corresponding annular groove 91.

[0031] The above scheme is adopted: the positioning rod 97 is aligned with the positioning groove 96, and the valve cover 2, the extrusion head 98 and the positioning rod 97 are squeezed to the left, so that the positioning rod 97 is inserted into the positioning groove 96, and one of the positioning rods 97 is inserted into the annular groove 91, so that the valve stem 13 can be limited and fixed up and down to avoid the valve stem 13 moving up and causing the square rod 17 to be separated from the square groove 18, thereby improving the firmness of the connection between the valve stem 13 and the ball core 11. At the same time, multiple extrusion heads 98 squeeze multiple trapezoidal blocks 94 inwardly, so that the multiple trapezoidal blocks 94 squeeze the annular airbag 93, and then the annular airbag 93 expands inwardly to squeeze the rubber ring 92, so that the rubber ring 92 can be firmly abutted against the outer side of the valve cover 2, thereby greatly improving the sealing of the connection between the valve cover 2 and the valve body 1 and avoiding leakage.

[0032] Furthermore, a plurality of grooves 95 are provided on one side of the valve body 1, and a plurality of positioning grooves 96 are provided on the inner wall of one side of the groove 95. The positioning rod 97 is slidably sleeved in the corresponding positioning groove 96, and the extrusion head 98 is slidably sleeved in the corresponding groove 95, so as to facilitate the insertion of the extrusion head 98 and the positioning rod 97 to achieve the purpose of positioning installation.

[0033] Furthermore, an flared groove 16 is formed on the inner wall of the square groove 18. The flared groove 16 cooperates with the square rod 17. Through the arrangement of the flared groove 16, even if there is a slight misalignment between the square rod 17 and the square groove 18, under the rectification of the flared groove 16, the square rod 17 can also be conveniently inserted into the square groove 18.

[0034] In the present utility model, the driving motor 6 drives the rotation of the driving bevel gear 15. The driving bevel gear 15 drives the rotation of the driven bevel gear 14 and the hollow shaft 7. Under the limitation of the limiting groove 82 and the limiting block 81, the hollow shaft 7 drives the rotation of the valve rod 13 and the square rod 17. The square rod 17 drives the rotation of the ball core 11, so as to regulate the flow rate of the fluid. Through the arrangement of the two sealing rings 12, the sealing performance at the connection of the valve body 1, the valve cover 2 and the ball core 11 is improved.

[0035] When it is necessary to disassemble, assemble and replace the ball core 11 after long-term use, first loosen the four screws 4 so that the screws 4 do not fix the fixing ring 3. Pull the valve cover 2, the extrusion head 98 and the positioning rod 97 to the right. At this time, the extrusion head 98 does not extrude the trapezoidal block 94. At the same time, one of the positioning rods 97 disengages from the annular groove 91 and does not limit the valve rod 13. At this time, pull the pull rod 83 upward through the handle 85. The pull rod 83 drives the valve rod 13 and the square rod 17 to move upward and disengage from the square groove 18, so as not to clamp and fix the ball core 11. At this time, the ball core 11 can be taken out of the valve body 1. Turn the square groove 18 and the flared groove 16 of the new ball core 11 upward, and then put the ball core 11 into the valve body 1. Release the handle 85. At this time, under the elastic force of the compression spring 84, the valve rod 13 and the square rod 17 move downward and are inserted into the square groove 18, so as to clamp and fix the ball core 11. Through the arrangement of the flared groove 16, even if there is a slight misalignment between the square rod 17 and the square groove 18, under the rectification of the flared groove 16, the square rod 17 can also be conveniently inserted into the square groove 18. Then align the positioning rod 97 with the positioning groove 96, and squeeze the valve cover 2, the extrusion head 98 and the positioning rod 97 to the left, so that the positioning rod 97 is inserted into the positioning groove 96, and one of the positioning rods 97 is inserted into the annular groove 91, so as to limit and fix the valve rod 13 up and down, and avoid the situation that the square rod 17 disengages from the square groove 18 due to the upward movement of the valve rod 13, and improve the firmness of the connection between the valve rod 13 and the ball core 11. At the same time, multiple extrusion heads 98 squeeze multiple trapezoidal blocks 94 inward, so that the multiple trapezoidal blocks 94 squeeze the annular airbag 93, and then the annular airbag 93 expands inward to squeeze the rubber ring 92, so that the rubber ring 92 can firmly abut against the outside of the valve cover 2, greatly improving the sealing performance of the connection between the valve cover 2 and the valve body 1 and avoiding leakage. Finally, tighten the screws 4 to fix the valve cover 2 and the fixing ring 3 on the valve body 1.

Claims

1. A quick-install multifunctional ball valve, characterized in that: The valve body (1) comprises a valve cover (2) and a ball core (11); a fixing ring (3) is provided on the outer fixing sleeve of the valve cover (2); four screws (4) are connected to the outer side of the fixing ring (3) through a thread; the fixing ring (3) is fixedly sleeved on the outer side of the valve body (1) by means of the four screws (4); a limited position sealing mechanism (9) is provided between the valve cover (2) and the valve body (1); a regulating box (5) is fixedly connected to the top of the valve body (1); a regulating motor (6) is fixedly connected to one side of the regulating box (5); an active bevel gear (6) is fixedly connected to the output shaft of the regulating motor (6) 15), a hollow shaft (7) is rotatably connected to the upper and lower inner walls of the control box (5), a driven bevel gear (14) is fixedly sleeved on the outer side of the hollow shaft (7), the driving bevel gear (15) is meshed with the driven bevel gear (14), a valve stem (13) is arranged in the hollow shaft (7), a square rod (17) is fixedly connected to the lower end of the valve stem (13), a square groove (18) is opened at the top of the ball core (11), the square rod (17) is movably clamped in the square groove (18), and a disassembly mechanism (8) is arranged between the valve stem (13) and the hollow shaft (7).

2. A quick-install multifunctional ball valve according to claim 1, characterized in that: The inner sides of the valve body (1) and the valve cover (2) are both fixedly connected with sealing rings (12), and the ball core (11) is movably abutted between the two sealing rings (12).

3. The quick-install multifunctional ball valve according to claim 1, characterized in that: Bearings (10) are fixedly connected to the upper and lower inner walls of the control box (5), and the hollow shaft (7) is fixedly sleeved in the inner rings of the two bearings (10).

4. The quick-install multifunctional ball valve according to claim 1, characterized in that: The disassembly and assembly mechanism (8) comprises a compression spring (84) and a pull rod (83) fixedly connected to the top end of the valve stem (13); the top end of the compression spring (84) is fixedly connected to the top inner wall of the hollow shaft (7); limiting grooves (82) are provided on the inner walls on both sides of the hollow shaft (7); limiting blocks (81) are fixedly connected to both sides of the valve stem (13); and the two limiting blocks (81) are slidably sleeved in the corresponding limiting grooves (82), respectively.

5. The quick-install multifunctional ball valve according to claim 4, characterized in that: A handle (85) is fixedly connected to the top end of the pull rod (83).

6. The quick-install multifunctional ball valve according to claim 1, characterized in that: The position limiting sealing mechanism (9) comprises a plurality of extrusion heads (98) fixedly connected to one side of the valve cover (2) and an annular airbag (93) fixedly arranged in the valve body (1); a rubber ring (92) is fixedly connected to the inner side of the annular airbag (93); a plurality of trapezoidal blocks (94) are fixedly connected to the outer side of the annular airbag (93); the extrusion head (98) is movably abutted against the outer inclined surface of the trapezoidal block (94); one end of the extrusion head (98) is fixedly connected to a positioning rod (97); an annular groove (91) is provided on the outer side of the valve stem (13); and a corresponding positioning rod (97) is movably inserted into the corresponding annular groove (91).

7. A quick-install multifunctional ball valve according to claim 6, characterized in that: A plurality of grooves (95) are formed on one side of the valve body (1), a plurality of positioning grooves (96) are formed on an inner wall of one side of the groove (95), the positioning rod (97) is slidably sleeved in the corresponding positioning groove (96), and the extrusion head (98) is slidably sleeved in the corresponding groove (95).

8. The quick-install multifunctional ball valve according to claim 1, characterized in that: An expansion groove (16) is provided on the inner wall of the square groove (18), and the expansion groove (16) matches the square rod (17).

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