Novel ball valve assembly

Abstract

The utility model relates to a novel ball valve assembly which comprises a valve body, a valve cavity is formed in the valve body, a valve ball assembly is arranged in the valve cavity, a fixing connector is integrally formed on one side of the valve body, a medium through opening communicated with the interior of the valve cavity is formed in the fixing connector in a penetrating mode, and a threaded connection opening communicated with the valve cavity is formed in the side, away from the fixing connector, of the valve body. A connector connecting seat is in threaded connection with the threaded connecting opening, a mounting bevel opening is formed in the end, away from the valve body, of the connector connecting seat, the mounting bevel opening is gradually expanded from the side close to the valve body to the other side, and a replaceable connector is detachably mounted on the mounting bevel opening. The replaceable connector comprises a conical end inserted into the installation bevel opening and an abutting ring located on the outer side of the end, away from the valve body, of the connector connecting base, a gland is connected to the outer side wall of the connector connecting base in a threaded mode, and the gland is pressed on the abutting ring. Flexible adaptation of the side interface is achieved, and good stability and sealing performance are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a novel ball valve assembly. Background Technique

[0002] As a commonly used opening and closing element in industrial pipeline systems, ball valves are widely used in fields such as petroleum, natural gas, chemical industry, water supply and drainage, etc. Their main function is to achieve rapid cut-off and reliable sealing of fluid media. Currently, common ball valves usually adopt a design with fixed interfaces at both ends, and their connection form is determined during manufacturing and cannot be adjusted according to actual installation requirements.

[0003] In practical applications, due to differences in interface standards adopted by different equipment or pipeline systems, in some usage scenarios, one end of the ball valve (usually the water outlet end) often needs to be connected to various types of pipelines. Therefore, users usually need to equip ball valves of various specifications to meet different connection requirements, which not only increases procurement and inventory costs but also reduces the maintainability and versatility of the system. Therefore, there is an urgent need to provide a novel ball valve assembly with a reasonable structure, strong adaptability, and reliable sealing, which can, on the premise of ensuring the connection stability of one end, achieve compatibility with various connection forms through a replaceable joint design at the other end. Summary of the Invention

[0004] The utility model proposes a novel ball valve assembly, the joint at one end of which is easy to replace and can ensure good stability and sealing performance, solving the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows: A novel ball valve assembly includes a valve body. There is a valve cavity inside the valve body, and a valve ball assembly is arranged in the valve cavity. One side of the valve body is integrally formed with a fixed joint, and a medium through-port leading into the valve cavity is penetrated and opened on the fixed joint. The valve body is provided with a threaded connection port communicating with the valve cavity on the side far from the fixed joint. The aperture of the threaded connection port is greater than or equal to the aperture of the valve cavity. A joint connection seat is threadedly connected to the threaded connection port, and a medium through-hole leading into the valve cavity is penetrated and opened on the joint connection seat. An installation inclined port is opened at one end of the joint connection seat far from the valve body, and the installation inclined port is gradually expanded from the side close to the valve body to the other side. A replaceable joint is detachably installed on the installation inclined port. The replaceable joint includes a conical end inserted into the installation inclined port and a holding ring located outside one end of the joint connection seat far from the valve body. A gland is threadedly connected to the outer wall of the joint connection seat, and the gland presses against the holding ring.

[0006] Preferably, an inner rib hole is opened on the joint connection seat on one side of the medium through-hole, and the inner rib hole is located between the medium through-hole and the installation inclined port.

[0007] Preferably, the inclination angle of the conical end matches that of the installation bevel, and there is still a gap between the abutting ring and the end of the joint connecting seat away from the valve body when the conical end enters the deepest part of the installation bevel.

[0008] Preferably, a first sealing ring groove is formed on the outer side wall of the conical end, and a first sealing ring is arranged in the first sealing ring groove.

[0009] Preferably, a pressing ring for abutting against the valve body is integrally formed on the outer side wall of the joint connecting seat. A second sealing ring groove is formed at one end of the valve body facing the pressing ring. A second sealing ring is arranged in the second sealing ring groove. A convex ring is arranged on the pressing ring and inserted into the second sealing ring groove to press on the second sealing ring.

[0010] Preferably, the valve ball assembly includes a first valve seat, a second valve seat and a valve ball. A first valve seat groove is formed on one side of the valve body close to the fixed joint. A second valve seat groove is formed at one end of the joint connecting seat screwed into the threaded connection port. The first valve seat is located in the first valve seat groove. The second valve seat is located in the second valve seat groove. The valve ball is movably arranged between the first valve seat and the second valve seat.

[0011] Preferably, a slot is formed on the upper side of the valve ball and penetrates through both sides of the valve ball. A valve rod assembly port and a limiting groove located below the valve rod assembly port are formed on the upper side of the valve body. The valve rod is rotatably fitted in the valve rod assembly port. A plug for inserting into the slot is arranged at the bottom of the valve rod. A limiting seat located in the limiting groove is arranged on the valve rod. A sealing washer is arranged between the limiting seat and the top of the limiting groove. A number of third sealing rings are arranged on the valve rod in the valve rod assembly port.

[0012] Preferably, a knob is arranged at the upper end of the valve rod. A knob installation clamping platform is formed at the upper end of the valve rod. The knob is installed on the knob installation clamping platform. A pressing nut for pressing the knob on the knob installation clamping platform is screwed at the upper end of the valve rod.

[0013] Preferably, a rotation limiting block is integrally formed on the valve body. A rotation limiting port for the rotation limiting block to movably cooperate with is arranged on the knob.

[0014] Preferably, a sub-joint is integrally formed on the upper side of the middle part of the fixed joint. A sub-medium through port communicating with the medium through port is formed in the sub-joint.

[0015] In summary, the beneficial effects of the present utility model are as follows:

[0016] 1. Through the modular design of the threaded connection port and the replaceable joint of the present utility model, the flexible adaptation of the side interface is achieved. The combined design of the installation bevel and the conical end not only ensures the quick disassembly and assembly of the replaceable joint but also enhances the sealing performance through the pressing effect of the gland and the abutting ring. The overall structure is compact, significantly improving the versatility and installation efficiency of the ball valve in scenarios with different interface standards.

[0017] 2. An internal rib hole is provided between the medium through-hole and the installation bevel, facilitating the direct driving of the joint connecting seat for rotation installation or disassembly by tools. This design eliminates the need for an auxiliary clamping structure on the outside of the joint connecting seat, thereby shortening the length of the joint connecting seat, optimizing the space occupation, and simplifying the overall structure.

[0018] 3. When the conical end is fully inserted into the installation bevel, a gap is reserved between the abutting ring and the end of the joint connecting seat, ensuring that the pressure exerted by the gland can be transmitted between the conical end and the installation bevel, prompting them to fit tightly. This design improves the sealing performance.

[0019] 4. A sub-joint is added in the middle of the fixed joint, enabling additional fluid passage or detection interface functions through the sub-medium through-hole. This expands the versatility of the ball valve, for example, it can be used for pressure monitoring or bypass control. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is Figure 1 a schematic diagram of the structure when observed from another angle;

[0023] Figure 3 is Figure 1 an exploded schematic diagram of the structure;

[0024] Figure 4 is Figure 1 a schematic diagram of the sectional structure;

[0025] Figure 5 is a schematic diagram of the structure of the present utility model with a fixed joint with a sub-joint at one end and a replaceable joint with a bent tube at the other end;

[0026] Figure 6 isFigure 5 Schematic cross-sectional structure diagram;

[0027] Figure 7 Schematic structure diagram of the present utility model with different fixed joints;

[0028] Figure 8 Schematic structure diagram of the present utility model with different fixed joints and replaceable joints.

[0029] In the figure: 1. Valve body; 11. Valve cavity; 12. Threaded connection port; 13. Second sealing ring groove; 14. Second sealing ring; 15. First valve seat groove; 16. Valve rod assembly port; 17. Limit groove; 18. Rotating limit block; 2. Fixed joint; 21. Medium through port; 22. Sub-joint; 23. Sub-medium through port; 3. Joint connection seat; 31. Medium through port; 32. Installation inclined port; 33. Inner rib hole; 34. Pressure ring; 35. Convex ring; 36. Second valve seat groove; 4. Replaceable joint; 41. Tapered end; 42. Supporting ring; 43. First sealing ring port; 44. First sealing ring; 5. Pressure cover; 61. First valve seat; 62. Second valve seat; 7. Valve ball; 71. Slot; 8. Valve rod; 81. Insert block; 82. Limit seat; 83. Sealing washer; 84. Third sealing ring; 85. Knob installation clamping table; 9. Knob; 91. Rotating limit port; 92. Pressing nut. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached Figures 1-8 , and it is obvious that the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] Embodiment 1:

[0032] As Figures 1 to 4As shown in the figure, the utility model discloses a novel ball valve assembly, which includes a valve body 1. There is a valve cavity 11 inside the valve body 1. A valve ball assembly is arranged in the valve cavity 11, and the valve ball assembly is used to control the flow and cut-off of the medium. On one side of the valve body 1, a fixed joint 2 is integrally formed. A medium through port 21 leading into the valve cavity 11 is penetrated and opened on the fixed joint 2. In addition, a threaded connection port 12 communicating with the valve cavity 11 is opened on the side of the valve body 1 far from the fixed joint 2. The aperture of the threaded connection port 12 is greater than or equal to the aperture of the valve cavity 11, so as to facilitate the subsequent assembly of the valve ball assembly and the valve rod 8. A joint connection seat 3 is threadedly connected to the threaded connection port 12. A medium through port 31 leading into the valve cavity 11 is penetrated and opened on the joint connection seat 3. An installation inclined port 32 is opened at one end of the joint connection seat 3 far from the valve body 1. The installation inclined port 32 is gradually expanded from the side close to the valve body 1 to the other side. A replaceable joint 4 is detachably installed on the installation inclined port 32. The replaceable joint 4 includes a conical end 41 inserted into the installation inclined port 32 and a holding ring 42 located outside one end of the joint connection seat 3 far from the valve body 1. A gland 5 is threadedly connected to the outer wall of the joint connection seat 3, and the gland 5 presses on the holding ring 42, so that the replaceable joint 4 is reliably installed on the joint connection seat 3.

[0033] Through the combination of the fixed joint 2 and the replaceable joint in the utility model, the flexible replacement of the single-side interface is realized, so as to adapt to and meet the connection requirements of different pipeline systems. In this embodiment, the replaceable joint 4 can be in the shape of Figure 1 a straight pipe or Figure 5 a bent pipe. Of course, it can also be in any other shape that needs to be equipped with other interfaces, and no further elaboration will be made here.

[0034] For the convenience of rotation operation, an inner rib hole 33 (specifically an inner octagonal hole) is opened on one side of the joint connection seat 3 at the medium through port 31. The inner rib hole 33 is located between the medium through port 31 and the installation inclined port 32. When it is necessary to rotate the joint connection seat 3, the tool can directly drive the joint connection seat 3 to rotate through the inner rib hole 33, without additionally arranging an auxiliary clamping structure on the outer surface of the joint connection seat 3, so that the outer surface of the joint connection seat 3 is used to meet the threaded connection of the gland 5 and the setting of the pressing ring 34, thereby shortening the length of the joint connection seat 3 and optimizing the space layout.

[0035] Furthermore, the inclination angle of the conical end 41 matches the inclination angle of the installation inclined port 32. When the conical end 41 enters the deepest part of the installation inclined port 32, there is still a gap between the holding ring 42 and one end of the joint connection seat 3 far from the valve body 1, and the gap is between 0.5 mm and 1 mm. So that when the gland 5 applies pressure later, the gland 5 presses on the holding ring 42, and by rotating the gland 5 to apply a pre-tightening force, the holding ring 42 moves towards the end of the joint connection seat 3, further pushing the conical end 41 to be closely fitted with the installation inclined port 32, improving the sealing performance.

[0036] To further enhance the sealing performance, a first sealing ring groove 43 is provided on the outer side wall of the conical end 41, and a first sealing ring 44 is provided in the first sealing ring groove 43 to prevent the medium from leaking through the gap between the conical end 41 and the installation inclined opening 32.

[0037] Furthermore, to prevent the medium from leaking between the valve body 1 and the joint connecting seat 3, a pressing ring 34 for abutting against the valve body 1 is integrally formed on the outer side wall of the joint connecting seat 3. A second sealing ring groove 13 is provided at one end of the valve body 1 facing the pressing ring 34, and a second sealing ring 14 is provided in the second sealing ring groove 13. A convex ring 35 is provided on the pressing ring 34 and inserted into the second sealing ring groove and presses on the second sealing ring 14. The convex ring 35 is inserted into the second sealing ring groove 13 and presses on the second sealing ring 14 to form a double-sealing structure, preventing the medium from leaking at the connection between the joint connecting seat 3 and the valve body 1.

[0038] In the present utility model, the valve ball assembly specifically includes a first valve seat 61, a second valve seat 62, and a valve ball 7. A first valve seat groove 15 is provided on one side of the valve body 1 close to the fixed joint 2, and a second valve seat groove 36 is provided at one end of the joint connecting seat 3 screwed into the threaded connection port 12. The first valve seat 61 is located in the first valve seat groove 15, the second valve seat 62 is located in the second valve seat groove 36, and the valve ball 7 is movably arranged between the first valve seat 61 and the second valve seat 62. When the valve ball 7 rotates, the opening and closing function can be realized.

[0039] Among them, a slot 71 is provided on the upper side of the valve ball 7, and the slot 71 penetrates both sides of the valve ball 7. A valve rod assembly port 16 and a limiting groove 17 located below the valve rod assembly port 16 are provided on the upper side of the valve body 1. The valve rod 8 is rotatably fitted in the valve rod assembly port 16. An insertion block 81 for inserting into the slot 71 is provided at the bottom of the valve rod 8. The insertion block 81 is inserted into the slot 71 of the valve ball 7 to realize the linkage between the valve rod 8 and the valve ball 7. A limiting seat 82 located in the limiting groove 17 is provided on the valve rod 8, thereby preventing the axial displacement of the valve rod 8. A sealing washer 83 is provided between the limiting seat 82 and the top of the limiting groove 17 to prevent the medium from leaking along the gap of the valve rod 8. Furthermore, a number of third sealing rings 84 located in the valve rod assembly port 16 are provided on the valve rod 8 to further improve the sealing performance between the valve rod 8 and the valve body 1.

[0040] In the present utility model, a knob 9 is provided at the upper end of the valve rod 8. A knob installation clamping platform 85 is provided at the upper end of the valve rod 8, and the knob 9 is installed on the knob installation clamping platform 85. A pressing nut 92 for pressing the knob 9 on the knob installation clamping platform 85 is threadedly connected to the upper end of the valve rod 8. The pressing nut 9 makes the knob 9 tightly pressed on the knob installation clamping platform 85 to prevent the knob 9 from loosening.

[0041] Further, a rotation limiting block 18 is integrally formed on the valve body 1, and a rotation limiting port 91 for the rotation limiting block 18 to movably fit therein is provided on the knob 9. The rotation limiting block 18 and the rotation limiting port 91 cooperate to limit the rotation angle of the knob 9, specifically 90 degrees, to prevent the valve stem 8 from rotating excessively and causing the valve ball 7 to be stuck or the sealing surface to be damaged.

[0042] When the utility model is installed, the first valve seat 61 is embedded into the first valve seat groove 15 of the valve body 1, and then the valve stem 8 equipped with the third sealing ring 84 and the sealing washer 83 enters the valve cavity 11 from the direction of the threaded connection port 12, and then passes upward through the valve stem assembly port 16, so that the limit seat 82 is located in the limit groove 17. At this time, the upper end of the valve stem 8 exposed above the valve stem assembly port 16 can be grasped from the upper side, and the valve stem 8 is rotated to adjust the angle. The valve ball 7 is installed into the valve cavity 11, and the slots 71 penetrating both sides of the valve ball 7 are aligned with the insertion blocks 81 of the valve stem 8, so that the insertion blocks 81 enter the slots 71 from the side. Then, the second sealing ring 14 is installed in the second sealing ring groove 13, and then the second valve seat 62 is embedded into the second valve seat groove 36 of the joint connecting seat 3. Then, the joint connecting seat 3 is threadedly fitted on the threaded connection port 12. Then, the first sealing ring 44 is installed on the tapered end 41, and then the tapered end 41 of the replaceable joint is inserted into the installation inclined port 32 of the joint connecting seat 3. Finally, the gland 5 is tightened to make the tapered end 41 fit tightly with the installation inclined port 32, thus completing the assembly. After the assembly is completed, a pressure test is performed on the ball valve to ensure that there is no leakage at each sealing part. The knob 9 is manually rotated to verify the flexibility of the valve ball 7 opening and closing and the effectiveness of the limiting function.

[0043] Embodiment 2:

[0044] As Figure 5 shown in Figure 6 the middle upper side of the fixed joint 2 of this embodiment is integrally formed with a sub-joint 22, and a sub-medium through port 23 communicating with the medium through port 21 is opened in the sub-joint 22. The sub-joint 22 can be used to connect an additional pipeline or monitoring equipment (such as a pressure sensor) to expand the versatility of the ball valve, for example, for bypass control or system monitoring.

[0045] In addition, it should also be noted that the fixed joint 2 of this application can also be in the style of Figure 7 or Figure 8 .

[0046] At the same time, it should be pointed out that the terms pointed out by the utility model, such as: "front", "rear", "vertical", "horizontal", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model.

[0047] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A new type of ball valve assembly, characterized by:

8. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod has a round shank to contact with said linking rod.

2. A novel ball valve assembly according to claim 1, characterized in that: The joint connection seat is provided with an inner ridge hole on one side of the medium passage, and the inner ridge hole is located between the medium passage and the installation oblique opening.

3. A new type of ball valve assembly according to claim 1, characterized in that: The tapered end matches the inclination angle of the installation bevel, and when the tapered end can enter the deepest part of the installation bevel, there is still a gap between the support ring and the end of the joint connection seat away from the valve body.

4. A novel ball valve assembly according to claim 1, characterized in that: A first sealing ring opening is formed on the outer side wall of the tapered end, and a first sealing ring is formed in the first sealing ring opening.

5. A novel ball valve assembly according to claim 1, characterized in that: A pressure ring for supporting the valve body is integrally formed on the outer side wall of the joint connection seat, and a second sealing ring groove is opened on one end of the valve body facing the pressure ring, a second sealing ring is arranged in the second sealing ring groove, and a convex ring is provided on the pressure ring, which is inserted into the second sealing ring groove and pressed on the second sealing ring.

6. A novel ball valve assembly according to claim 1, characterized in that: The valve ball assembly includes a first valve seat, a second valve seat and a valve ball. The valve body is provided with a first valve seat groove on a side close to the fixed joint, and the joint connecting seat is provided with a second valve seat groove on one end threadedly connected to the threaded connection port. The first valve seat is located in the first valve seat groove, the second valve seat is located in the second valve seat groove, and the valve ball is movably arranged between the first valve seat and the second valve seat.

7. A novel ball valve assembly according to claim 6, characterized in that: A slot is provided on the upper side of the valve ball, and the slot passes through both sides of the valve ball. A valve stem assembly port and a limiting groove located below the valve stem assembly port are provided on the upper side of the valve body. A valve stem is rotatably fitted in the valve stem assembly port, and an insert block for inserting into the slot is provided at the bottom of the valve stem. A limiting seat located in the limiting groove is provided on the valve stem, a sealing gasket is provided between the limiting seat and the top of the limiting groove, and a plurality of third sealing rings are provided on the valve stem at the valve stem assembly port.

8. A novel ball valve assembly according to claim 7, characterized in that: The upper end of the valve stem is provided with a knob, the upper end of the valve stem is provided with a knob mounting clamp, the knob is mounted on the knob mounting clamp, and the upper end of the valve stem is threadedly connected with a holding nut for pressing the knob on the knob mounting clamp.

9. A novel ball valve assembly according to claim 8, characterized in that: A rotation limit block is integrally formed on the valve body, and a rotation limit opening is provided on the knob for the rotation limit block to movably fit into.

10. A novel ball valve assembly according to claim 1, characterized in that: An auxiliary joint is integrally formed on the upper side of the middle portion of the fixed joint, and an auxiliary medium through port connected to the medium through port is opened in the auxiliary joint.

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