Metal sealing rotary ball valve

Abstract

The utility model relates to a metal sealing rotary ball valve which comprises a valve body, a valve cover is fixedly connected to the top of the valve body, a valve rod is movably connected to the middle of the valve cover, the lower end of the valve rod penetrates into the valve body, a valve plate is fixedly connected to the lower end of the valve rod, and a connecting box is fixedly connected to the top face of the valve cover. The upper end of the valve rod penetrates into an inner cavity of the connecting box, through mutual cooperation of all the components, the connecting sleeve can move up and down on the valve rod to be adjusted and is fixed after moving, and therefore the rod length of the device can be conveniently adjusted according to the layout of a pipeline system or equipment when the rotary ball valve is installed and used; and after the rod length is adjusted, the side plate is closed to block the connecting opening, and then the fastening bolt is twisted to fix the side plate, so that external rainwater and the like are prevented from entering the connecting box, components in the connecting box are protected, and the service life of the device is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a metal-sealed rotary ball valve. Background Technology

[0002] The rotary ball valve combines the functions and advantages of butterfly valves, semi-ball valves, gate valves, and globe valves, while also possessing its own unique and powerful functions and advantages. It is small in size, lightweight, easy to transport, install, maintain, and repair, and operates reliably. The main characteristic of the rotary ball valve is that it can reliably shut off not only under forward pressure but also under reverse pressure or when the reverse pressure is much greater than the forward pressure.

[0003] Currently, the stem length of existing rotary ball valves is fixed, a design feature that significantly limits their flexibility and application range in daily use. Due to the non-adjustable stem length, rotary ball valves often require precise matching to specific piping systems or equipment layouts during installation and use, which undoubtedly increases installation difficulty and cost. Utility Model Content

[0004] The purpose of this invention is to provide a metal-sealed rotary ball valve to solve the problems mentioned in the background art.

[0005] The present invention relates to a metal-sealed rotary ball valve, comprising a valve body, a valve cover fixedly connected to the top of the valve body, a valve stem movably connected to the middle of the valve cover, the lower end of the valve stem penetrating into the valve body, a valve plate fixedly connected to the lower end of the valve stem, a connecting box fixedly connected to the top surface of the valve cover, the upper end of the valve stem penetrating into the inner cavity of the connecting box, several insertion holes being provided on the left and right sides of the valve stem sidewall near the upper end, the insertion holes being arranged linearly from top to bottom, a connecting sleeve movably sleeved on the upper end of the valve stem, a connecting frame fixedly connected to the side wall of the connecting sleeve, a fixing component being provided in the connecting frame, connecting holes being provided on the left and right sides of the connecting sleeve sidewall near the lower end, a movable hole being provided on the top of the connecting box, the upper end of the connecting sleeve being movably sleeved in the movable hole and penetrating to the outside of the top of the connecting box, and a handwheel fixedly connected to the upper end face of the connecting sleeve.

[0006] In one embodiment, the fixing component includes two connecting blocks, which are respectively disposed on the left and right sides of the connecting sleeve near the lower end. The two connecting blocks are also disposed on the left and right sides of the inner cavity of the connecting frame. An insert block is fixedly connected to the middle of the facing surfaces of the two connecting blocks. An adjacent connecting hole is movably fitted into the middle of the two insert blocks. The facing ends of the two insert blocks are respectively inserted into the adjacent insert holes. A first fixing block is fixedly connected to the rear side of the two connecting blocks. A bidirectional screw is threadedly connected to the middle of the two first fixing blocks. The left end face of the bidirectional screw is connected to a bearing on the left side of the inner wall of the connecting frame near the rear side.

[0007] In one embodiment, a through hole is provided on the right side of the connecting frame near the rear side, the right end bearing of the bidirectional screw is connected in the through hole and extends through to the outside of the right side of the connecting frame, and a torsion handle is fixedly connected to the right end face of the bidirectional screw.

[0008] In one embodiment, a second fixing block is fixedly connected to the front side of each of the two connecting blocks, and a guide rod is movably sleeved on the middle of the two second fixing blocks. The left and right end faces of the guide rod are fixedly connected to the left and right sides of the inner wall of the connecting frame, respectively, near the front side.

[0009] In one embodiment, the connecting box has a connecting opening on its right side, and a side panel is connected to the right hinge of the outer wall of the connecting box.

[0010] In one embodiment, the connecting box has two threaded holes on its left side, which are arranged opposite each other and are located in front of the connecting opening. The top and bottom of the front side of the side plate are threaded with fastening bolts, and the left end of the fastening bolts is threaded into the adjacent threaded holes.

[0011] In one embodiment, a sealing ring is fixedly connected inside the movable hole, and the upper end of the connecting sleeve is movably sleeved inside the sealing ring.

[0012] The beneficial effects provided by this utility model are:

[0013] Through the cooperation of various components, the connecting sleeve can move up and down on the valve stem for adjustment and then be fixed after movement. This makes it easy to adjust the stem length of the rotary ball valve according to the pipeline system or equipment layout during installation and use, reducing installation difficulty and cost. After adjusting the stem length, the side plate is closed to block the connection opening, and then the fastening bolts are turned to fix the side plate, thus preventing external rainwater from entering the connection box and protecting the internal components, thereby extending the service life of the device. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 This is a main sectional view of the present invention;

[0016] Figure 3 This is a main sectional view of the connector box;

[0017] Figure 4 This is a top sectional view of the connecting frame;

[0018] Figure 5 This is a side view of the connector box.

[0019] In the attached diagram: 1. Valve body; 2. Valve cover; 3. Valve stem; 4. Valve plate; 5. Connecting box; 6. Insertion hole; 7. Connecting sleeve; 8. Connecting frame; 9. Fixing assembly; 91. Connecting block; 92. Insertion block; 93. First fixing block; 94. Double-acting screw; 95. Torque handle; 96. Second fixing block; 97. Guide rod; 10. Connecting hole; 11. Movable hole; 12. Handwheel; 13. Connecting opening; 14. Side plate; 15. Fastening bolt; 16. Sealing ring. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0021] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0022] In one embodiment, such as Figure 1-5As shown, a metal-sealed rotary ball valve includes a valve body 1, a valve cover 2 fixedly connected to the top of the valve body 1, a valve stem 3 movably connected to the middle of the valve cover 2, the lower end of the valve stem 3 penetrating into the interior of the valve body 1, a valve plate 4 fixedly connected to the lower end of the valve stem 3, a connecting box 5 fixedly connected to the top surface of the valve cover 2, the upper end of the valve stem 3 penetrating into the inner cavity of the connecting box 5, several insertion holes 6 are provided on the left and right sides of the side wall of the valve stem 3 near the upper end, the several insertion holes 6 are arranged linearly from top to bottom, a connecting sleeve 7 is movably sleeved on the upper end of the valve stem 3, a connecting frame 8 is fixedly connected to the side wall of the connecting sleeve 7, a fixing component 9 is provided in the connecting frame 8, a connecting hole 10 is provided on the left and right sides of the side wall of the connecting sleeve 7 near the lower end, a movable hole 11 is provided on the top of the connecting box 5, the upper end of the connecting sleeve 7 is movably sleeved in the movable hole 11 and penetrates to the outside of the top of the connecting box 5, and a handwheel 12 is fixedly connected to the upper end face of the connecting sleeve 7.

[0023] To facilitate the fixing and disassembly of the connecting sleeve 7 and the valve stem 3, the fixing assembly 9 includes two connecting blocks 91. The two connecting blocks 91 are respectively located on the left and right sides of the connecting sleeve 7 near the lower end. The two connecting blocks 91 are respectively located on the left and right sides of the inner cavity of the connecting frame 8. Insert blocks 92 are fixedly connected to the middle of the facing surfaces of the two connecting blocks 91. Adjacent connecting holes 10 are movably sleeved in the middle of the two insert blocks 92. The facing ends of the two insert blocks 92 are respectively inserted into adjacent insertion holes 6. First fixing blocks 93 are fixedly connected to the rear side of the two connecting blocks 91. A bidirectional screw 94 is threadedly connected to the middle of the two first fixing blocks 93. The left end face of the bidirectional screw 94 is connected to the bearing on the left side of the inner wall of the connecting frame 8 near the rear side.

[0024] To facilitate the rotation of the bidirectional screw 94, a through hole is provided on the right side of the connecting frame 8 near the rear. The bearing at the right end of the bidirectional screw 94 is connected in the through hole and extends through to the outside of the right side of the connecting frame 8. A torsion handle 95 is fixedly connected to the right end face of the bidirectional screw 94.

[0025] In order to restrict the connecting block 91 and prevent it from rotating with the bidirectional screw 94, a second fixing block 96 is fixedly connected to the front side of each of the two connecting blocks 91. A guide rod 97 is movably sleeved in the middle of the two second fixing blocks 96. The left and right end faces of the guide rod 97 are fixedly connected to the left and right sides of the inner wall of the connecting frame 8, respectively, near the front side.

[0026] To facilitate the operation of the handle 95 by the staff reaching into the connector box 5, a connection opening 13 is provided on the right side of the connector box 5, and a side plate 14 is connected to the right side hinge of the outer wall of the connector box 5.

[0027] In order to secure the side plate 14 after it is closed, thereby preventing rainwater from entering the connecting box 5, two threaded holes are provided on the left side of the connecting box 5. The two threaded holes are arranged opposite each other and are located on the front side of the connecting opening 13. Fastening bolts 15 are threaded to the top and bottom of the front side of the side plate 14, and the left end of the fastening bolt 15 is threaded into the adjacent threaded hole.

[0028] To improve the sealing performance of the connecting sleeve 7 when it is fitted into the movable hole 11, a sealing ring 16 is fixedly connected inside the movable hole 11, and the upper end of the connecting sleeve 7 is movably fitted into the sealing ring 16.

[0029] Working principle: When using this utility model, the handwheel 12 can be turned to rotate the connecting sleeve 7, which drives the valve stem 3 to rotate, and the valve stem 3 drives the valve plate 4 to rotate, thereby performing opening and closing operations. When it is necessary to adjust the length of the device rod, first turn the fastening bolt 15 to move it out of the threaded hole, thereby releasing the lock on the side plate 14. Then rotate the side plate 14 to open it. Next, reach your hand into the connecting box 5 through the connecting opening 13 and turn the torsion handle 95 to rotate the double-direction screw 94. The rotation of the double-direction screw 94 causes the two first fixing blocks 93 to move apart. The first fixing blocks 93 drive the connecting block 91 to move, and the connecting block 91 drives the insertion block 92 to move, causing the insertion block 92 to be pulled out of the insertion hole 6, thereby releasing the lock on the connecting sleeve 7. Then, the connecting sleeve... 7. Move upward to adjust the position of the connecting sleeve 7 on the valve stem 3. After adjusting the position, twist the torsion handle 95 in the opposite direction to make the bidirectional screw 94 rotate in the opposite direction, so that the two insert blocks 92 move towards each other and insert into the corresponding insertion holes 6, fixing the connecting sleeve 7 to the valve stem 3. This allows the connecting sleeve 7 to drive the valve stem 3 to rotate when it rotates. In this way, the length of the valve stem can be easily adjusted according to the pipeline system or equipment layout during the installation and use of the rotary ball valve, reducing the installation difficulty and cost. Finally, close the side plate 14 to block the connection opening 13, and then twist the fastening bolt 15 to fix the side plate 14, thereby preventing rainwater and other external water from entering the connection box 5, protecting the internal components of the connection box 5 and extending the service life of the device.

[0030] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A metal-sealed rotary ball valve characterized by, The utility model provides a valve, including valve body, the top fixed connection of valve body has valve cover, the middle movable connection of valve cover has valve rod, the lower extreme of valve rod is through to valve body inside, the lower extreme fixed connection of valve rod has valve plate, the top surface fixed connection of valve cover has connecting box, the upper extreme of valve rod is through to connecting box inner chamber, the left and right sides of valve rod lateral wall and near upper extreme all are equipped with a plurality of insertion hole, a plurality of insertion hole from top to bottom are linearly arranged in proper order, the upper extreme movable sleeve joint of valve rod has connecting sleeve, the lateral wall fixed connection of connecting sleeve has connecting frame, be equipped with fixed component in connecting frame, the left and right sides of connecting sleeve lateral wall and near lower extreme all are equipped with connecting hole, the top of connecting box is equipped with movable hole, the upper extreme movable sleeve joint of connecting sleeve is in movable hole and is through to the outside of connecting box top, the upper end surface fixed connection of connecting sleeve has hand wheel, the fixed component includes two connecting blocks, two connecting blocks are respectively arranged in the left and right sides of connecting sleeve and near lower extreme, two connecting blocks are respectively arranged in the left and right sides of connecting frame inner chamber, the middle of the opposite surface of two insert blocks all is fixedly connected with the insert block, the middle of two insert blocks all is movable sleeve joint with adjacent connecting hole, the opposite end of two insert blocks is respectively inserted in adjacent insertion hole, the rear side of two connecting blocks all is fixedly connected with first fixed block, the middle of two first fixed blocks is commonly screw connected with two-way screw rod, the left end surface of two-way screw rod and the left side of connecting frame inner wall and near the rear side bearing connection.

2. A metal sealed rotary ball valve as claimed in claim 1, wherein: The right side of connecting frame and near the rear side is equipped with through -hole, the right end of two-way screw rod is bearing connected in through -hole and is through to the outside of connecting frame right side, the right end surface fixed connection of two-way screw rod has the handle of twisting.

3. A metal sealed rotary ball valve as claimed in claim 1, wherein: The front side of two connecting blocks all is fixedly connected with second fixed block, the middle of two second fixed blocks is commonly movable sleeve joint with guide rod, the left and right end surface of guide rod is respectively fixedly connected with the left and right sides of connecting frame inner wall and near the front side.

4. A metal sealed rotary ball valve as defined in claim 1 wherein: The right side of connecting box is equipped with connecting opening, the right side of connecting box outer wall is hinged with side plate.

5. A metal sealed rotary ball valve as claimed in claim 4, wherein: The left side of connecting box is equipped with two threaded holes, two threaded holes are oppositely arranged, two threaded holes all are located in the front side of connecting opening, the top and bottom of side plate front side all are screw connected with fastening bolt, the left end of fastening bolt is screw connected in adjacent threaded hole.

6. A metal sealed rotary ball valve as defined in claim 1 wherein: The movable hole is fixedly connected with sealing ring, the upper end of connecting sleeve is movably sleeved in the sealing ring.

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