Speed reduction switch ball valve

Abstract

The utility model discloses a speed reduction switch ball valve, and relates to the technical field of ball valves. The ball valve comprises a valve body, a ball body is rotationally connected into the valve body, a valve rod is fixedly connected to the top of the ball body, a control box is fixed to the top of the valve body through a bolt, the valve rod rotationally penetrates through the top of the valve body and the control box, a worm wheel is fixedly connected to the circumference of the valve rod, and a penetrating worm is rotationally connected to one side of the control box. The top of the valve rod is fixedly connected with a push rod, the top of the control box is fixedly connected with two pressurizing mechanisms used in cooperation with the push rod, and each pressurizing mechanism comprises a guide box. According to the ball valve, when the ball body is controlled, the rotation difficulty can be increased at the last stage of the switch, so that the speed reduction effect is achieved, violent rotation of the ball body is effectively limited, the service life of the valve body and the ball body is prolonged, the push block and the push rod can be limited through the positioning plate, and use is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of ball valve technology, and in particular relates to a deceleration switching ball valve. Background Technology

[0002] A ball valve is an important fluid control device. Its core component is a perforated spherical opening and closing element that rotates 90° to open or close. It boasts advantages such as simple structure, easy operation, low fluid resistance, and reliable sealing, and is widely used in various industries including petroleum and chemical.

[0003] Existing ball valves are typically operated directly by handwheel, some are controlled automatically, and others are driven by worm gear. Traditional manual operation carries the risk of forceful operation, and rapid rotation of the handwheel can easily damage the ball or valve body. Therefore, a deceleration switching ball valve is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a deceleration switch ball valve that increases the difficulty of rotation in the final stage of the switch when controlling the ball, thereby achieving the effect of deceleration, effectively limiting violent rotation of the ball, improving the service life of the valve body and the ball, and limiting the push block and push rod through the positioning plate, which is convenient to use and solves the existing technical problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A deceleration switch ball valve includes: a valve body, a ball rotatably connected within the valve body, a valve stem fixedly connected to the top of the ball, a control box fixed to the top of the valve body by bolts, the valve stem rotatably passing through the top of the valve body and the control box, a worm gear fixedly connected to the circumference of the valve stem, and a worm gear rotatably connected to one side of the control box, the worm gear meshing with the worm wheel.

[0007] A push rod is fixedly connected to the top of the valve stem, and two pressure boosting mechanisms that cooperate with the push rod are fixedly connected to the top of the control box. Each pressure boosting mechanism includes a guide box, which is fixed to the top of the control box. A push block is slidably connected to the top of the guide box, and the push block has an arc surface on the side near the valve stem. An elastic element is provided between the push block and the guide box. Through the cooperation of the two pressure boosting mechanisms, the difficulty of rotation can be increased in the final stage of the switch when controlling the ball, thereby achieving a deceleration effect, effectively limiting the violent rotation of the ball, avoiding damage to the valve body and the ball, and improving the service life of the valve body and the ball.

[0008] As a further embodiment of this utility model, the elastic element is a first spring, which is fixed between the push block and the guide box.

[0009] As a further embodiment of this invention, a second spring is fixedly connected to one inner wall of the guide box, and the length of the second spring is less than that of the first spring.

[0010] As a further embodiment of this invention, one end of the push rod is rotatably connected to a roller.

[0011] As a further improvement of this utility model, the top of the control box is fixedly connected to two positioning plates. The two positioning plates are located on one side of the two push blocks respectively. By setting the positioning plates, the positioning plates are tilted and contact the side of the unmoved push block, which can limit the push block and facilitate the push rod to contact the arc surface. At the same time, it can limit the push rod and keep the ball switch in an accurate position.

[0012] As a further embodiment of this utility model, a top cover is fixedly connected to the top of the control box, and two through-hole positioning pins are inserted into the surface of the top cover for positioning the push rod.

[0013] As a further improvement of this invention, a handwheel is fixedly connected to one end of the worm gear.

[0014] As a further embodiment of this utility model, a fixing post is fixed to the bottom of the valve body by bolts, a positioning post is fixedly connected to the top of the fixing post, the positioning post is rotatably connected to the ball, and a sealing gasket is provided between the fixing post and the valve body.

[0015] In this application, during use, the handwheel drives the worm gear to rotate, which in turn drives the worm wheel to rotate. The worm wheel, through the valve stem, drives the ball to rotate, thereby opening and closing the valve body. When the valve stem rotates, it also drives the push rod to rotate. When the push rod contacts the arc surface on one side of the push block, it can push the push block, which in turn squeezes the first spring, increasing the difficulty of rotating the push rod. This makes it perceptible to the user. As the push block continues to rotate, it contacts the second spring, further increasing the difficulty of rotation, thus achieving a deceleration effect. This effectively limits the violent rotation of the ball and improves the service life of the valve body and the ball.

[0016] The embodiments of this utility model have the following beneficial effects:

[0017] In this invention, the combined use of two pressurizing mechanisms increases the difficulty of rotation during the final stage of switching the ball, thereby achieving a deceleration effect, effectively limiting the violent rotation of the ball, avoiding damage to the valve body and the ball, and improving the service life of the valve body and the ball.

[0018] In this utility model, by setting a positioning plate, the positioning plate is tilted and contacts the side of the unmoved push block, which can limit the push block and facilitate the contact between the push rod and the arc surface. At the same time, it can limit the push rod and keep the ball switch in an accurate position.

[0019] In this invention, when controlling the ball, the difficulty of rotation can be increased in the final stage of the switch, thereby achieving the effect of deceleration, effectively limiting the violent rotation of the ball, improving the service life of the valve body and the ball, and the positioning plate can limit the push block and push rod, making it convenient to use.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present invention;

[0023] Figure 2 This is a cross-sectional view of the control box according to an embodiment of the present invention;

[0024] Figure 3 This is a partial cross-sectional view of an embodiment of the present invention.

[0025] In the diagram: 1. Valve body; 2. Ball; 3. Fixed column; 4. Positioning column; 5. Valve stem; 6. Control box; 7. Worm gear; 8. Handwheel; 9. Worm wheel; 10. Top cover; 11. Positioning pin; 12. Push rod; 13. Roller; 14. Guide box; 15. Push block; 16. Arc surface; 17. First spring; 18. Second spring; 19. Positioning plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 of this utility model.

[0028] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0029] Example 1

[0030] Please see Figures 1-3 As shown, this embodiment provides a deceleration switch ball valve, including: a valve body 1, a ball 2 rotatably connected inside the valve body 1, a valve stem 5 fixedly connected to the top of the ball 2, a control box 6 fixed to the top of the valve body 1 by bolts, a sealing gasket and a pressure plate for squeezing the sealing gasket are provided between the ball 2 and the valve body 1, a spring is provided between the pressure plate and the valve body 1, and packing and a sealing ring are provided between the valve stem 5 and the valve body 1, which is an existing structure. The valve stem 5 rotatably passes through the top of the valve body 1 and the control box 6, and a worm gear 9 is fixedly connected to the circumference of the valve stem 5. A through worm 7 is rotatably connected to one side of the control box 6. The worm 7 meshes with the worm gear 9. Rotating the worm 7 drives the worm gear 9 to rotate. The worm gear 9 drives the ball 2 to rotate through the valve stem 5, thereby realizing the opening and closing of the valve body 1.

[0031] A push rod 12 is fixedly connected to the top of the valve stem 5. Two pressure boosting mechanisms that cooperate with the push rod 12 are fixedly connected to the top of the control box 6. The pressure boosting mechanism includes a guide box 14, which is fixed to the top of the control box 6. A push block 15 is slidably connected to the top of the guide box 14. An arc surface 16 is provided on the side of the push block 15 near the valve stem 5. An elastic element is provided between the push block 15 and the guide box 14. When the push rod 12 contacts the arc surface 16 on one side of the push block 15, it can push the push block 15. The push block 15 then squeezes the first spring 17, increasing the difficulty of rotating the push rod 12, providing tactile feedback, and also achieving the effect of deceleration.

[0032] In this utility model, the elastic element is a first spring 17, which is fixed between the push block 15 and the guide box 14.

[0033] In particular, a second spring 18 is fixedly connected to one inner wall of the guide box 14. The length of the second spring 18 is less than that of the first spring 17. When the push block 15 continues to rotate, it contacts the second spring 18, further increasing the difficulty of rotation, thereby achieving the effect of deceleration, effectively limiting the violent rotation of the ball 2, and improving the service life of the valve body 1 and the ball 2.

[0034] Example 2

[0035] Improvements based on Example 1: See Appendix Figures 1-3 A type of deceleration switch ball valve.

[0036] In this invention, one end of the push rod 12 is rotatably connected to a roller 13, which reduces the wear between the push rod 12 and the arc surface 16.

[0037] In particular, the top of the control box 6 is fixedly connected to two positioning plates 19. The two positioning plates 19 are located on one side of the two push blocks 15 respectively. The positioning plates 19 are inclined and contact the side of the unmoved push block 15. This can limit the push block 15, making it easier for the push rod 12 to contact the arc surface 16. At the same time, it can limit the push rod 12 and keep the ball switch 2 in an accurate position.

[0038] It should be noted that a top cover 10 is fixedly connected to the top of the control box 6. Two through-hole positioning pins 11 are inserted into the surface of the top cover 10 to position the push rod 12. Lowering the positioning pins 11 can restrict the push rod 12 and prevent it from rotating.

[0039] In this invention, a handwheel 8 is fixedly connected to one end of the worm gear 7, which facilitates the rotation of the worm gear 7.

[0040] In particular, a fixing post 3 is fixed to the bottom of the valve body 1 by bolts, and a positioning post 4 is fixedly connected to the top of the fixing post 3. The positioning post 4 is rotatably connected to the ball 2, and a sealing gasket is provided between the fixing post 3 and the valve body 1.

[0041] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0042] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A deceleration switching ball valve, characterized in that, include: A valve body (1) has a ball (2) rotatably connected inside it. A valve stem (5) is fixedly connected to the top of the ball (2). A control box (6) is fixed to the top of the valve body (1) by bolts. The valve stem (5) rotatably passes through the top of the valve body (1) and the control box (6). A worm gear (9) is fixedly connected to the circumference of the valve stem (5). A through worm (7) is rotatably connected to one side of the control box (6). The worm (7) meshes with the worm gear (9). A push rod (12) is fixedly connected to the top of the valve stem (5). Two pressure boosting mechanisms that cooperate with the push rod (12) are fixedly connected to the top of the control box (6). The pressure boosting mechanism includes a guide box (14). The guide box (14) is fixed to the top of the control box (6). A push block (15) is slidably connected to the top of the guide box (14). An arc surface (16) is provided on the side of the push block (15) near the valve stem (5). An elastic element is provided between the push block (15) and the guide box (14).

2. The deceleration switching ball valve as described in claim 1, characterized in that, The elastic element is a first spring (17), which is fixed between the push block (15) and the guide box (14).

3. The deceleration switching ball valve as described in claim 2, characterized in that, A second spring (18) is fixedly connected to one inner wall of the guide box (14), and the length of the second spring (18) is less than that of the first spring (17).

4. A deceleration switching ball valve as described in claim 2, characterized in that, One end of the push rod (12) is rotatably connected to a roller (13).

5. A deceleration switching ball valve as described in claim 1, characterized in that, The top of the control box (6) is fixedly connected to two positioning plates (19), which are located on one side of the two push blocks (15).

6. A deceleration switching ball valve as described in claim 1, characterized in that, The top of the control box (6) is fixedly connected to a top cover (10), and two through-hole positioning pins (11) are inserted into the surface of the top cover (10) for positioning the push rod (12).

7. A deceleration switching ball valve as described in claim 1, characterized in that, A handwheel (8) is fixedly connected to one end of the worm gear (7).

8. A deceleration switching ball valve as described in claim 1, characterized in that, The bottom of the valve body (1) is fixed with a fixing column (3) by bolts, and the top of the fixing column (3) is fixedly connected with a positioning column (4). The positioning column (4) is rotatably connected to the ball (2), and a sealing gasket is provided between the fixing column (3) and the valve body (1).

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