Low torque ball valve with pressure self-balancing function
By designing a low-torque ball valve with pressure self-balancing function, the valve opening degree is automatically adjusted using a pressure gauge and a starting mechanism, solving the problem of difficulty in manual observation, realizing automatic adjustment and extending motor life, and improving control accuracy and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KAIERTE VALVE
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
AI Technical Summary
When existing ball valves control the pressure on both sides of a pipeline, manual observation is difficult, and changes in flow pressure cannot be processed in a timely manner, resulting in the inability to maintain the flow rate inside the pipeline within the required range for an extended period of time.
A low-torque ball valve with pressure self-balancing function was designed. The valve opening degree is automatically adjusted by a pressure gauge and a starting mechanism. The small gear drives the large gear to rotate to reduce the motor torque. Automatic adjustment is achieved by combining the motor and control box.
It enables automatic adjustment of valve opening and closing without human supervision, extends motor life, ensures pipeline flow within the required range, and improves control accuracy and stability.
Smart Images
Figure CN224453758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve equipment, specifically a low-torque ball valve with pressure self-balancing function. Background Technology
[0002] A ball valve is a valve in which the opening and closing element (ball) is driven by the valve stem and rotates around the axis of the ball valve; it can also be used for fluid regulation and control. Among them, the hard-seal V-type ball valve has a strong shearing force between the V-shaped ball core and the metal valve seat with hard alloy overlay, and is particularly suitable for media containing fibers, small solid particles, etc.
[0003] When ball valves control the pressure on both sides of a pipeline, the opening degree needs to be controlled. When controlling manually, the pressure on both sides of the pipeline needs to be observed to ensure that the pressure on both sides of the pipeline is within the set range, thereby ensuring that the flow rate inside the pipeline is within the required range. However, it is impossible for humans to observe and control the valve position for a long time. When this cannot be managed, if there is a change in the flow pressure, humans cannot deal with it in time. Therefore, there is an urgent need for a device to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a low-torque ball valve with pressure self-balancing function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-torque ball valve with pressure self-balancing function, comprising a valve body, a control mechanism for convenient control of opening and closing degree is provided at the top of the valve body, pressure gauges are installed on both sides of the valve body through pressure measuring holes, and a starting mechanism for convenient activation of the control mechanism is provided inside the pressure gauge at the discharge end;
[0006] The control mechanism includes a housing, a control box, a motor, a movable shaft, a ball, a first gear, and a second gear. The housing is fixed to the top of the valve body, the movable shaft is movably installed inside the valve body, the ball is fixed to the lower end of the movable shaft, the first gear is fixed to the top of the movable shaft, the control box is fixed to the top of the housing, the motor is fixed to the top of the housing, and the second gear is fixed to the output end of the motor. In use, the motor drives the second gear to rotate, which in turn drives the first gear to rotate, causing the movable shaft to drive the ball to rotate, thereby opening or closing the valve body. Furthermore, the number of gears in the second gear is less than the number of gears in the first gear, using a smaller gear to drive a larger gear reduces the torque on the motor and extends its service life.
[0007] Preferably, the starting mechanism includes a chute, a slider, a plate, an electric push rod, a U-shaped block, a pressing screw, and a trigger switch. The chute is located on one side of the pressure gauge, the slider is slidably disposed inside the chute, the plate is fixed to one side of the slider, the pressing screw is threaded onto the plate, the electric push rod is embedded and fixed to the plate, the U-shaped block is fixed to one side of the electric push rod, and the trigger switch is embedded and fixed inside the U-shaped block. In use, the pressure is first manually adjusted to the required level, then the slider is moved along the chute until the U-shaped block moves to the position of the pressure gauge pointer. Then, the pressing screw is rotated to press the outside of the pressure gauge, fixing the position of the plate. After that, the electric push rod is activated, driving the U-shaped block to move until the pressure gauge is located inside the U-shaped block, between the pressure gauge pointer and the trigger switch. When the pressure gauge is not manually observable, if the pipeline pressure decreases or increases, the pointer moves to the trigger switch on one side. The control box receives the electrical signal and starts the motor to adjust the pressure gauge pointer so that it remains inside the U-shaped block, thus achieving automatic adjustment when no one is present.
[0008] Preferably, the pressure gauge pointer is made of an elastic metal material.
[0009] Preferably, the first gear meshes with the second gear.
[0010] Preferably, the number of gears in the second gear is less than the number of gears in the first gear.
[0011] Preferably, there are two trigger switches, which are symmetrically installed on both sides inside the U-shaped block.
[0012] Preferably, the trigger switch, control box, and motor are electrically connected.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. When this utility model is in use, the motor drives the second gear to rotate, which in turn drives the first gear to rotate, causing the movable shaft to drive the ball to rotate, thereby achieving the function of opening or closing the valve body. Furthermore, the number of gears in the second gear is less than the number of gears in the first gear. By using the small gear to drive the large gear to rotate, the torque borne by the motor is reduced, and the service life of the motor is extended.
[0015] 2. In use, this utility model first manually adjusts to the required pressure, then moves the slider along the groove until the U-shaped block moves to the position of the pressure gauge pointer. Then, the extrusion screw is rotated to extrude the outside of the pressure gauge and fix the plate position. After that, the electric push rod is started to drive the U-shaped block to move until the pressure gauge is located inside the U-shaped block, between the trigger switch and the pressure gauge. When it is not possible to observe manually, if the pipeline pressure decreases or increases, the pointer moves to the trigger switch on the side. The control box receives the electrical signal and starts the motor to adjust, so that the pressure gauge pointer is always inside the U-shaped block, thus achieving automatic adjustment when no one is present. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a low-torque ball valve with pressure self-balancing function according to this utility model;
[0017] Figure 2 This is a first cross-sectional view of a low-torque ball valve with pressure self-balancing function according to this utility model.
[0018] Figure 3 This is a second sectional view of a low-torque ball valve with pressure self-balancing function according to this utility model.
[0019] Figure 4 This is an enlarged schematic diagram of a low-torque ball valve A with pressure self-balancing function according to this utility model.
[0020] In the diagram: 1. Valve body; 2. Shell; 3. Control box; 4. Motor; 5. Pressure gauge; 6. Movable shaft; 7. Ball; 8. First gear; 9. Second gear; 10. Slide groove; 11. Slider; 12. Plate; 13. Extrusion screw; 14. Electric push rod; 15. U-shaped block; 16. Trigger switch. Detailed Implementation
[0021] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figure 1-4 This utility model provides a low torque ball valve with pressure self-balancing function, including a valve body 1, a control mechanism at the top of the valve body 1 for easy control of the opening and closing degree, pressure gauges 5 installed on both sides of the valve body 1 through pressure measuring holes, the pointer of the pressure gauges 5 is made of elastic metal material, and the inner side of the pressure gauge 5 at the discharge end has a starting mechanism for easy start control mechanism.
[0023] The control mechanism includes a housing 2, a control box 3, a motor 4, a movable shaft 6, a ball 7, a first gear 8, and a second gear 9. The housing 2 is bolted to the top of the valve body 1. The movable shaft 6 is movably installed inside the valve body 1. The ball 7 is welded and fixed to the lower end of the movable shaft 6. The first gear 8 is bolted to the top of the movable shaft 6. The control box 3 is bolted to the top of the housing 2. The motor 4 is fixed to the top of the housing 2 via a mounting bracket. The second gear 9 is fixed to the output end of the motor 4 via a coupling. The first gear 8 and the second gear 9 mesh. The number of gears in the second gear 9 is less than the number of gears in the first gear 8. In use, the motor 4 drives the second gear 9 to rotate, which in turn drives the first gear 8 to rotate, causing the movable shaft 6 to drive the ball 7 to rotate, thereby opening or closing the valve body 1. Furthermore, since the number of gears in the second gear 9 is less than the number of gears in the first gear 8, using a smaller gear to drive a larger gear reduces the torque on the motor 4 and extends its service life.
[0024] The starting mechanism includes a slide groove 10, a slider 11, a plate 12, an electric push rod 14, a U-shaped block 15, a pressing screw 13, and a trigger switch 16. The slide groove 10 is located on one side of the pressure gauge 5. The slider 11 slides inside the slide groove 10. The plate 12 is welded and fixed to one side of the slider 11. The pressing screw 13 is threaded onto the plate 12. The electric push rod 14 is embedded and fixed to the plate 12. The U-shaped block 15 is bolted to one side of the electric push rod 14. Two trigger switches 16 are embedded and fixed inside the U-shaped block 15, symmetrically installed on both sides inside the U-shaped block 15. The trigger switches 16, control box 3, and motor 4 are electrically connected. During use... First, manually adjust to the required pressure. Then, move the slider 11 along the slide groove 10 until the U-shaped block 15 moves to the position of the pressure gauge 5 pointer. Then, rotate the extrusion screw 13 to extrude the outside of the pressure gauge 5 and fix the plate 12 position. After that, start the electric push rod 14 to drive the U-shaped block 15 to move until the pressure gauge 5 is located between the inside of the U-shaped block 15 and the trigger switch 16. After that, when it is not possible to observe manually, if the pipeline pressure decreases or increases, the pointer moves to the trigger switch 16 on the side. The control box 3 receives the electrical signal and starts the motor 4 to adjust, so that the pressure gauge 5 pointer is always located inside the U-shaped block 15, thereby driving the automatic adjustment function when no one is present.
[0025] Working principle: During use, motor 4 drives the second gear 9 to rotate, which in turn drives the first gear 8 to rotate, causing the movable shaft 6 to drive the ball 7 to rotate, thereby opening or closing the valve body 1. The second gear 9 has fewer gears than the first gear 8, using a smaller gear to drive a larger gear, reducing the torque on motor 4 and extending its service life. During use, the pressure is first manually adjusted to the required level. Then, the slider 11 is moved along the slide groove 10 until the U-shaped block 15 moves to the position of the pressure gauge 5 pointer. The pressing screw 13 is then rotated to press the outside of the pressure gauge 5, fixing the plate 12. The electric push rod 14 is then activated, moving the U-shaped block 15 until the pressure gauge 5 is positioned between the inside of the U-shaped block 15 and the trigger switch 16. When the pressure in the pipeline decreases or increases and cannot be manually observed, the pointer moves to the trigger switch 16 on one side. The control box 3 receives the electrical signal and starts motor 4 to adjust the pressure gauge 5 pointer so that it remains inside the U-shaped block 15, thus achieving automatic adjustment when no one is present.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A low torque ball valve with pressure self-balancing function, comprising a valve body (1), characterized in that: The valve body (1) is provided with a control mechanism at the top for easy control of opening and closing. Pressure gauges (5) are installed on both sides of the valve body (1) through pressure measuring holes. The pressure gauge (5) at the discharge end is provided with a starting mechanism for easy start control. The control mechanism includes a housing (2), a control box (3), a motor (4), a movable shaft (6), a ball (7), a first gear (8), and a second gear (9). The housing (2) is fixed to the top of the valve body (1). The movable shaft (6) is movably installed inside the valve body (1). The ball (7) is fixed to the lower end of the movable shaft (6). The first gear (8) is fixed to the top of the movable shaft (6). The control box (3) is fixed to the top of the housing (2). The motor (4) is fixed to the top of the housing (2). The second gear (9) is fixed at the output end of the motor (4).
2. The low torque ball valve with pressure self-balancing function according to claim 1, characterized in that: The starting mechanism includes a slide groove (10), a slider (11), a plate (12), an electric push rod (14), a U-shaped block (15), a pressing screw (13), and a trigger switch (16). The slide groove (10) is opened on one side of the pressure gauge (5). The slider (11) is slidably disposed inside the slide groove (10). The plate (12) is fixed on one side of the slider (11). The pressing screw (13) is threadedly disposed on the plate (12). The electric push rod (14) is embedded and fixed on the plate (12). The U-shaped block (15) is fixed on one side of the electric push rod (14). The trigger switch (16) is embedded and fixed inside the U-shaped block (15).
3. The low torque ball valve with pressure self-balancing function according to claim 2, characterized in that: The pointer of the pressure gauge (5) is made of elastic metal.
4. The low torque ball valve with pressure self-balancing function according to claim 3, characterized in that: The first gear (8) meshes with the second gear (9).
5. The low torque ball valve with pressure self-balancing function according to claim 4, characterized in that: The number of gears in the second gear (9) is less than the number of gears in the first gear (8).
6. The low torque ball valve with pressure self-balancing function according to claim 5, characterized in that: Two trigger switches (16) are provided, symmetrically installed on both sides inside the U-shaped block (15).
7. The low torque ball valve with pressure self-balancing function according to claim 6, characterized in that: The trigger switch (16), control box (3) and motor (4) are electrically connected.