Intelligent anti-misoperation type double-locking ball valve
By introducing a locking mechanism and a torque motor into the ball valve, combined with a torque sensor and coupling design, the problems of ball valve misoperation and inconvenient disassembly and assembly are solved, achieving both safety and ease of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KAINLAI INTELLIGENT EQUIP TECH CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-23
AI Technical Summary
Existing ball valves are prone to misoperation and are not easy to disassemble and assemble quickly, affecting safety and maintenance efficiency.
A smart anti-misoperation type double-locking ball valve was designed, which combines a locking mechanism and a torque motor. The torque sensor monitors the torque to achieve double locking of the valve ball, and the connection between the coupling and the flange enables quick assembly and disassembly.
It effectively prevents ball valve misoperation, improves safety, and facilitates quick repair and replacement of torque motors, thereby enhancing equipment reliability and maintenance efficiency.
Smart Images

Figure CN224397281U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of valve technology, specifically to an intelligent anti-misoperation type double-locking ball valve. Background Technology
[0002] Ball valves are a widely used type of valve, playing a vital role in numerous industrial and civil fields due to their unique structure and excellent performance. The core component of a ball valve is a ball with a through-hole, which rotates around its axis within the valve body. Opening and closing the valve is achieved by rotating 90°. This simple opening and closing method makes ball valves easy to operate, allowing for quick cutting off or connecting of fluid channels, making them particularly suitable for applications requiring frequent operation. Ball valves offer many significant advantages. Their excellent sealing performance, achieved through a well-designed sealing structure, can result in zero leakage, effectively preventing losses and safety hazards caused by fluid leakage. Ball valves have low fluid resistance; the through-hole of the ball is essentially the same as the inner diameter of the pipe, resulting in minimal pressure loss during fluid flow, reducing energy consumption and improving system efficiency. Furthermore, ball valves are compact, lightweight, and require little installation space, making them easy to place in various confined spaces. Moreover, ball valves are highly corrosion-resistant, and suitable materials, such as stainless steel and plastics, can be selected according to different operating conditions to adapt to various corrosive media.
[0003] However, existing ball valves are prone to misoperation during use, causing them to close when they should be open, which can damage equipment and pipelines and result in low safety. Furthermore, existing ball valves are difficult to disassemble and reassemble when damaged, which affects maintenance. Utility Model Content
[0004] The purpose of this invention is to address the problems of existing ball valves being prone to misoperation and not being quick to disassemble and assemble.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A smart anti-misoperation type double-locking ball valve includes a first valve body and a second valve body, which are detachably connected by a flange. A valve cover is detachably connected to the top of the first valve body. A pair of mounting brackets are symmetrically and vertically fixedly connected to the top two sides of the valve cover. A torque motor is slidably connected between the opposing sidewalls of the pair of mounting brackets. A torque sensor is provided on the outer side of the top of the torque motor. A locking mechanism is provided on the sidewall of the first valve body. The locking mechanism includes an electric cylinder, which is fixedly connected to the outer sidewall of the first valve body. The piston rod of the electric cylinder extends into the interior of the first valve body, and a top block is fixedly connected to the piston rod of the electric cylinder.
[0007] Furthermore, a bushing is fixedly connected to the outer side of the shaft of the torque motor, and a coupling is detachably connected to the bottom end of the bushing. A groove is provided at the bottom of the coupling, and a valve stem is slidably connected to the bottom of the coupling through the groove. The bottom end of the valve stem extends into the interior of the first valve body, and a valve ball is fixedly connected to the bottom end of the valve stem.
[0008] Furthermore, the outer wall of the valve ball is provided with a top groove, the position and shape of which match the top block.
[0009] Furthermore, the inner wall of the first valve body has an inner groove surrounding the piston rod of the electric cylinder.
[0010] Furthermore, a crossbar is rotatably connected to the bottom edge of the torque motor, and a pair of limiting grooves are provided on the side wall edge of the mounting bracket near the crossbar.
[0011] Furthermore, both ends of the first valve body and the second valve body are provided with through holes.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model discloses an intelligent anti-misoperation type double-locking ball valve. By setting a locking mechanism, the ball can be fixed when the ball valve is opened, thereby achieving double locking of the ball valve and preventing misoperation of the ball valve during use.
[0014] 2. The present invention relates to an intelligent anti-misoperation type double-locking ball valve, which, by being equipped with a coupling and flange, allows for quick disassembly and assembly of the first valve body, the second valve body, and the torque motor when the ball valve malfunctions, facilitating ball valve maintenance. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of an intelligent anti-misoperation double-locking ball valve according to this utility model.
[0016] Figure 2 This is a schematic diagram of the crossbar and limit groove structure of an intelligent anti-misoperation double-locking ball valve according to this utility model.
[0017] Figure 3 This is a cross-sectional view of an intelligent anti-misoperation double-locking ball valve according to the present invention.
[0018] Figure 4 This is a schematic diagram of the internal structure of an intelligent anti-misoperation double-locking ball valve according to this utility model.
[0019] In the diagram: 1. First valve body; 2. Second valve body; 3. Flange; 4. Valve cover; 5. Mounting bracket; 6. Torque motor; 7. Bushing; 8. Coupling; 9. Slot; 10. Valve stem; 11. Torque sensor; 12. Locking mechanism; 1201. Electric cylinder; 1202. Top block; 1203. Inner groove; 1204. Top groove; 13. Limit groove; 14. Through hole; 15. Valve ball; 16. Crossbar. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1-4 The intelligent anti-misoperation type double-locking ball valve of this embodiment includes a first valve body 1 and a second valve body 2. The first valve body 1 and the second valve body 2 are detachably connected by a flange 3. A valve cover 4 is detachably connected to the top of the first valve body 1. A pair of mounting brackets 5 are symmetrically and vertically fixed to the top two sides of the valve cover 4. A torque motor 6 is slidably connected between the opposing sidewalls of the pair of mounting brackets 5 for driving the opening and closing of the ball valve. A torque sensor 11 is provided on the outer side of the top of the torque motor 6. A locking mechanism is provided on the sidewall of the first valve body 1. Mechanism 12 is used to fix the position of valve ball 15. Locking mechanism 12 includes electric cylinder 1201, which is fixedly connected to the outer side wall of the first valve body 1. The piston rod of electric cylinder 1201 extends into the interior of the first valve body 1. A top block 1202 is fixedly connected to the piston rod of electric cylinder 1201. A top groove 1204 is provided on the outer side wall of valve ball 15. The position and shape of the top groove 1204 match the top block 1202. An inner groove 1203 is provided on the inner wall of the first valve body 1 around the piston rod of electric cylinder 1201. When the ball valve is in the open state, the torque motor 6 is in the closed state. The electric cylinder 1201 drives the top block 1202 to extend into the top groove 1204 to fix the valve ball 15, achieving double locking of the valve ball 15 and preventing the valve ball 15 from rotating when the torque motor 6 is misoperated, which would affect the fluid transport in the equipment and pipeline. When the torque motor 6 is misoperated and starts, the valve ball 15 is in the fixed state, and the torque force inside the torque motor 6 increases. The torque sensor 11 can monitor the torque force inside the torque motor 6 in real time. When the torque is too large, the torque motor 6 is closed to achieve overload protection of the torque motor 6.
[0022] A bushing 7 is fixedly connected to the outer side of the shaft of the torque motor 6. A coupling 8 is detachably connected to the bottom end of the bushing 7. A groove 9 is provided at the bottom of the coupling 8. A valve stem 10 is slidably connected to the bottom of the coupling 8 through the groove 9. The bottom end of the valve stem 10 extends into the interior of the first valve body 1. A valve ball 15 is fixedly connected to the bottom end of the valve stem 10. Both ends of the first valve body 1 and the second valve body 2 are provided with through holes 14. When the ball valve is normally closed, the electric cylinder 1201 drives the top block 1202 to disengage from the top groove 1204 and enter the inner groove 1203. At this time, the torque motor 6 drives the coupling 8 and the valve stem 10 to start rotating, so that the valve ball 15 at the bottom of the valve stem 10 rotates accordingly until the valve ball 15 rotates 90° and stops. At this time, the ball valve is closed.
[0023] A crossbar 16 is rotatably connected to the bottom edge of the torque motor 6. A pair of limiting grooves 13 are provided on the side wall edge of the mounting bracket 5 near the crossbar 16. When the torque motor 6 needs maintenance or replacement, the crossbar 16 is moved to disengage from the lower limiting groove 13, and then the torque motor 6 is slid upward. When the torque motor 6 moves upward, it drives the coupling 8 to move upward until it disengages from the top of the valve stem 10, thereby achieving quick disassembly and assembly of the torque motor 6 and facilitating maintenance of the torque motor 6.
[0024] Working principle: When the ball valve is in the open state, the torque motor 6 is in the closed state. The electric cylinder 1201 drives the top block 1202 to extend into the top groove 1204, fixing the valve ball 15 and achieving double locking of the valve ball 15. This prevents the valve ball 15 from rotating when the torque motor 6 is malfunctioning, which would affect the fluid transport in the equipment and pipeline. When the torque motor 6 is malfunctioning and starts, the valve ball 15 is in the fixed state, and the torque inside the torque motor 6 increases. The torque sensor 11 can monitor the torque inside the torque motor 6 in real time. When the torque is too high, the torque motor 6 is closed, achieving overload protection for the torque motor 6. When the torque motor 6 needs maintenance or replacement, move the crossbar 16 to disengage it from the lower limiting groove 13, and then slide the torque motor 6 upward. As the torque motor 6 moves upward, it drives the coupling 8 to move upward until it disengages from the top of the valve stem 10, thus enabling quick disassembly and assembly of the torque motor 6 for easy maintenance. When the ball valve is normally closed, the electric cylinder 1201 drives the top block 1202 to disengage from the top groove 1204 and enter the inner groove 1203. At this time, the torque motor 6 drives the coupling 8 and the valve stem 10 to start rotating, causing the valve ball 15 at the bottom of the valve stem 10 to rotate accordingly until the valve ball 15 rotates 90° and stops, at which point the ball valve is closed.
[0025] 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. An intelligent anti-misoperation type double-locking ball valve, characterized in that: The device includes a first valve body (1) and a second valve body (2), which are detachably connected by a flange (3). A valve cover (4) is detachably connected to the top of the first valve body (1). A pair of mounting brackets (5) are symmetrically and vertically fixed to the top two sides of the valve cover (4). A torque motor (6) is slidably connected between the opposing side walls of the pair of mounting brackets (5). A torque sensor (11) is provided on the outer side of the top of the torque motor (6). A locking mechanism (12) is provided on the side wall of the first valve body (1). The locking mechanism (12) includes an electric cylinder (1201). The electric cylinder (1201) is fixedly connected to the outer side wall of the first valve body (1). The piston rod of the electric cylinder (1201) extends into the interior of the first valve body (1). A top block (1202) is fixedly connected to the piston rod of the electric cylinder (1201).
2. The intelligent anti-misoperation type double-locking ball valve according to claim 1, characterized in that: A bushing (7) is fixedly connected to the outside of the shaft of the torque motor (6). A coupling (8) is detachably connected to the bottom end of the bushing (7). A slot (9) is provided at the bottom of the coupling (8). A valve stem (10) is slidably connected to the bottom of the coupling (8) through the slot (9). The bottom end of the valve stem (10) extends into the interior of the first valve body (1). A valve ball (15) is fixedly connected to the bottom end of the valve stem (10).
3. The intelligent anti-misoperation type double-locking ball valve according to claim 2, characterized in that: The outer wall of the valve ball (15) is provided with a top groove (1204), the position and shape of which match the top block (1202).
4. The intelligent anti-misoperation type double-locking ball valve according to claim 1, characterized in that: The inner wall of the first valve body (1) is provided with an inner groove (1203) around the piston rod of the electric cylinder (1201).
5. The intelligent anti-misoperation type double-locking ball valve according to claim 1, characterized in that: The bottom edge of the torque motor (6) is rotatably connected to a crossbar (16), and a pair of limiting grooves (13) are provided on the side wall edge of the mounting bracket (5) near the crossbar (16).
6. The intelligent anti-misoperation type double-locking ball valve according to claim 1, characterized in that: Both ends of the first valve body (1) and the second valve body (2) are provided with through holes (14).