High-precision top-drive manual plug valve

Abstract

The utility model belongs to the technical field of plug valves, and particularly relates to a high-precision top-drive manual plug valve which comprises a frame, a valve body is fixedly installed in the frame, a valve rod is arranged on the valve body, and a rotating disc is fixedly installed at the top end of the valve rod. The two sliding rods are fixedly installed on the inner side wall of the frame, the same sliding table is installed on the two sliding rods in a sliding mode, a first fixing column is fixedly installed on the bottom face of the sliding table, and a second fixing column is fixedly installed at the position, away from the circle center, of the top face of the rotating disc. After one end of the clamping block is separated from the clamping groove, limiting on the adjusting disc is relieved, the adjusting disc is rotated to drive the lead screw to rotate, when the lead screw rotates, the sliding table slides on the sliding rod, when the sliding table moves, the first fixing column, the second fixing column and the connecting rod are matched to drive the rotating disc to rotate, and the rotating disc drives the valve rod to rotate. Therefore, the adjustment of the valve body is realized.

Description

Technical Field

[0001] This utility model belongs to the field of plug valve technology, and in particular relates to a high-precision top-drive manual plug valve. Background Technology

[0002] A plug valve is a rotary valve with a shut-off element or plunger-shaped valve. It is opened or closed by rotating 90 degrees to open or close the passage on the plug with the passage on the valve body. The plug, with its through-hole, rotates with the valve stem to achieve the opening and closing action. Because the movement between the sealing surfaces of the plug valve has a wiping effect, and it completely prevents contact with the flowing medium when fully open, it can also be used for media containing suspended particles. Another important characteristic of plug valves is their ease of adaptation to multi-channel structures, allowing a single valve to provide two, three, or even four different flow channels. This simplifies piping system design, reduces the number of valves required, and minimizes the need for connecting fittings in the equipment.

[0003] Currently available manual plug valves have some drawbacks in use. Usually, adjusting a plug valve requires rotating the valve stem, but manually rotating the valve stem directly results in inaccurate adjustment. Furthermore, the valve stem is exposed, which may lead to accidental activation, thus affecting the use of the plug valve. Therefore, we propose a high-precision top-drive manual plug valve. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision top-drive manual plug valve to solve the problems mentioned in the background art.

[0005] In view of this, the present invention provides a high-precision top-drive manual plug valve, comprising:

[0006] A frame, in which a valve body is fixedly installed, a valve stem is provided on the valve body, and a turntable is fixedly installed at the top of the valve stem;

[0007] Two sliding rods are fixedly installed on the inner side wall of the frame. The same sliding table is slidably installed on the two sliding rods. A first fixed column is fixedly installed on the bottom surface of the sliding table. A second fixed column is fixedly installed on the top surface of the turntable away from the center. A connecting rod is rotatably installed on the first fixed column. The other end of the connecting rod is rotatably installed on the second fixed column.

[0008] A movable component, mounted on a frame, is used to move a slide. When adjusting the valve body, a locking block is pulled outward. Once one end of the locking block disengages from its slot, the limiting effect on the adjusting disc is released. Rotating the adjusting disc causes the lead screw to rotate. As the lead screw rotates, the slide slides on the lead screw. As the slide moves, the first fixed column, the second fixed column, and the connecting rod work together to rotate the turntable. The turntable then rotates the valve stem, thereby achieving the adjustment of the valve body.

[0009] In the above technical solution, the moving component further includes a lead screw, which is rotatably mounted on the inner side wall of the frame. The lead screw is threadedly connected to the slide table, and when the lead screw rotates, it will drive the slide table to move on the lead screw.

[0010] In the above technical solution, an adjustment disc is rotatably mounted on one side of the frame. One end of the adjustment disc is fixedly connected to one end of the lead screw. Rotating the adjustment disc facilitates the rotation of the lead screw, thereby realizing the position adjustment of the slide table.

[0011] In the above technical solution, further, multiple arc-shaped blocks are fixedly installed on the outer wall of the adjusting disc, and slots are provided between the multiple arc-shaped blocks. A locking block is slidably installed on the outer wall of the frame, and one end of the locking block is movably locked in one of the slots. When the valve body is adjusted, the locking block is pulled outward. When one end of the locking block is disengaged from the slot, the limiting effect on the adjusting disc is released.

[0012] In the above technical solution, a side groove is further provided on one side of the frame, and a slider is slidably installed in the side groove. One end of the slider is fixedly connected to one side of the locking block. A return spring is fixedly installed inside one side of the side groove, and one end of the return spring is fixedly connected to one end of the slider. After the valve body is adjusted, the return spring will push the slider to move, and the slider will drive the locking block to reset. At this time, one end of the locking block will be sleeved in the corresponding locking groove, thereby limiting the adjustment disc and preventing the adjustment disc from rotating, which would cause the valve body to be adjusted. This enhances the accuracy of valve body adjustment and is quite practical.

[0013] In the above technical solution, two mounting plates are fixedly installed on both sides of the frame, and mounting holes are opened on the top surface of the two mounting plates. The mounting plates and mounting holes facilitate the installation and fixing of the frame.

[0014] Furthermore, in the above technical solution, the frame is a rectangular structure, and the frame is made of alloy material, which has good strength and hardness, good oxidation resistance and corrosion resistance, and a long service life.

[0015] The beneficial effects of this utility model are:

[0016] 1. This high-precision top-drive manual plug valve, when adjusting the valve body, pulls the locking block outward. When one end of the locking block disengages from its slot, the limiting of the adjusting disc is released. Rotating the adjusting disc drives the lead screw to rotate. When the lead screw rotates, the slide table slides on the slide rod. When the slide table moves, the first fixed column, the second fixed column, and the connecting rod work together to drive the turntable to rotate. The turntable drives the valve stem to rotate, thereby realizing the adjustment of the valve body.

[0017] 2. This high-precision top-drive manual plug valve, after the valve body is adjusted, the return spring will push the slider to move, and the slider will drive the locking block to reset. At this time, one end of the locking block will be sleeved in the corresponding slot, thereby limiting the adjustment plate and preventing the adjustment plate from rotating, which would cause the valve body to be adjusted. This enhances the accuracy of valve body adjustment and is quite practical. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a partially enlarged structural diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the frame of this utility model.

[0022] The markings in the diagram are as follows:

[0023] 1. Frame; 2. Valve body; 3. Valve stem; 4. Turntable; 5. Slide rod; 6. Slide table; 7. First fixed post; 8. Second fixed post; 9. Connecting rod; 10. Lead screw; 11. Adjusting plate; 12. Arc block; 13. Slot; 14. Locking block; 15. Side groove; 16. Slider; 17. Return spring; 18. Mounting plate; 19. Mounting hole. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0025] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0027] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, 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 application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0028] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Example

[0029] Please see Figures 1-4 As shown, this embodiment provides a high-precision top-drive manual plug valve.

[0030] Includes: a frame 1, within which a valve body 2 is fixedly installed, a valve stem 3 is mounted on the valve body 2, and a turntable 4 is fixedly installed at the top of the valve stem 3; two sliding rods 5, fixedly installed on the inner wall of the frame 1, with a common sliding platform 6 slidably mounted on the two sliding rods 5, a first fixed post 7 fixedly mounted on the bottom surface of the sliding platform 6, and a second fixed post 8 fixedly mounted on the top surface of the turntable 4 away from the center, a connecting rod 9 rotatably mounted on the first fixed post 7, and the other end of the connecting rod 9 rotatably mounted on the second fixed post 8; and a moving assembly. The slide 6 is mounted on the frame 1 and is used to move the slide table 6. When adjusting the valve body 2, the locking block 14 is pulled outward. When one end of the locking block 14 is disengaged from the locking groove 13, the limiting of the adjusting plate 11 is released. Rotating the adjusting plate 11 drives the lead screw 10 to rotate. When the lead screw 10 rotates, the slide table 6 slides on the slide rod 5. When the slide table 6 moves, the turntable 4 is driven to rotate through the cooperation of the first fixed column 7, the second fixed column 8, and the connecting rod 9. The turntable 4 drives the valve stem 3 to rotate, thereby realizing the adjustment of the valve body 2. Example

[0031] This embodiment provides a high-precision top-drive manual plug valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0032] The movable component includes a lead screw 10, which is rotatably mounted on the inner side wall of the frame 1. The lead screw 10 is threadedly connected to the slide table 6. When the lead screw 10 rotates, it will drive the slide table 6 to move on the slide rod 5. Example

[0033] This embodiment provides a high-precision top-drive manual plug valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] An adjustment disc 11 is rotatably mounted on one side of the frame 1. One end of the adjustment disc 11 is fixedly connected to one end of the lead screw 10. By rotating the adjustment disc 11, the lead screw 10 can be easily rotated, thereby realizing the position adjustment of the slide table 6. Example

[0035] This embodiment provides a high-precision top-drive manual plug valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0036] The outer wall of the regulating disc 11 is fixedly equipped with multiple arc-shaped blocks 12, and slots 13 are provided between the multiple arc-shaped blocks 12. The outer wall of the frame 1 is slidably equipped with a locking block 14, one end of which is movably locked in one of the slots 13. When the valve body 2 is adjusted, the locking block 14 is pulled outward. When one end of the locking block 14 is disengaged from the slot 13, the limiting of the regulating disc 11 is released. Example

[0037] This embodiment provides a high-precision top-drive manual plug valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] The frame 1 has a side groove 15 on one side, and a slider 16 is slidably installed in the side groove 15. One end of the slider 16 is fixedly connected to one side of the locking block 14. A return spring 17 is fixedly installed inside the side groove 15, and one end of the return spring 17 is fixedly connected to one end of the slider 16. After the valve body 2 is adjusted, the return spring 17 will push the slider 16 to move, and the slider 16 will drive the locking block 14 to reset. At this time, one end of the locking block 14 will be sleeved in the corresponding locking groove 13, thereby limiting the adjustment plate 11 and preventing the adjustment plate 11 from rotating, which would cause the valve body 2 to be adjusted. This enhances the accuracy of the valve body 2 during adjustment and is quite practical. Example

[0039] This embodiment provides a high-precision top-drive manual plug valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] Two mounting plates 18 are fixedly installed on both sides of the frame 1. The top surface of the two mounting plates 18 is provided with mounting holes 19. The mounting plates 18 and mounting holes 19 facilitate the installation and fixation of the frame 1. Example

[0041] This embodiment provides a high-precision top-drive manual plug valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] Among them, frame 1 is a rectangular structure, and frame 1 is made of alloy material. Alloy material has good strength and hardness, good oxidation resistance and corrosion resistance, and long service life.

[0043] In use: When adjusting the valve body 2, pull the locking block 14 outward. When one end of the locking block 14 disengages from the locking groove 13, the limiting of the adjusting disc 11 is released. Rotating the adjusting disc 11 drives the lead screw 10 to rotate. When the lead screw 10 rotates, the slide table 6 slides on the slide rod 5. When the slide table 6 moves, the first fixed column 7, the second fixed column 8, and the connecting rod 9 drive the turntable 4 to rotate. The turntable 4 drives the valve stem 3 to rotate, thereby realizing the adjustment of the valve body 2.

[0044] After the valve body 2 is adjusted, the reset spring 17 will push the slider 16 to move, and the slider 16 will drive the locking block 14 to reset. At this time, one end of the locking block 14 will be sleeved in the corresponding locking groove 13, thereby limiting the adjustment plate 11 and preventing the adjustment plate 11 from rotating, which would cause the valve body 2 to be adjusted. This enhances the accuracy of the valve body 2 adjustment and is quite practical.

[0045] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high-precision top-drive manual plug valve, characterized in that... ,include: A frame (1) is provided with a valve body (2) fixedly installed inside the frame (1), and a valve stem (3) is provided on the valve body (2). A turntable (4) is fixedly installed at the top of the valve stem (3). Two sliding rods (5) are fixedly installed on the inner side wall of the frame (1). The same slide table (6) is slidably installed on the two sliding rods (5). A first fixed column (7) is fixedly installed on the bottom surface of the slide table (6). A second fixed column (8) is fixedly installed on the top surface of the turntable (4) away from the center. A connecting rod (9) is rotatably installed on the first fixed column (7). The other end of the connecting rod (9) is rotatably installed on the second fixed column (8). A movable component is disposed on the frame (1) and is used to move the slide (6).

2. The high-precision top-drive manual plug valve according to claim 1, characterized in that, The moving component includes a lead screw (10) which is rotatably mounted on the inner side wall of the frame (1) and is threadedly connected to the slide (6).

3. A high-precision top-drive manual plug valve according to claim 2, characterized in that, An adjustment disc (11) is rotatably mounted on one side of the frame (1), and one end of the adjustment disc (11) is fixedly connected to one end of the lead screw (10).

4. A high-precision top-drive manual plug valve according to claim 3, characterized in that, Multiple arc-shaped blocks (12) are fixedly installed on the outer wall of the adjustment plate (11), and slots (13) are provided between the multiple arc-shaped blocks (12). A card block (14) is slidably installed on the outer wall of the frame (1), and one end of the card block (14) is movably engaged in one of the slots (13).

5. A high-precision top-drive manual plug valve according to claim 4, characterized in that, A side groove (15) is provided on one side of the frame (1), and a slider (16) is slidably installed in the side groove (15). One end of the slider (16) is fixedly connected to one side of the block (14). A reset spring (17) is fixedly installed on one side inside the side groove (15), and one end of the reset spring (17) is fixedly connected to one end of the slider (16).

6. A high-precision top-drive manual plug valve according to claim 1, characterized in that, Two mounting plates (18) are fixedly installed on both sides of the frame (1), and mounting holes (19) are opened on the top surface of the two mounting plates (18).

7. A high-precision top-drive manual plug valve according to claim 1, characterized in that, The frame (1) is a rectangular structure and is made of alloy material.

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