Valve auxiliary rotation device

Abstract

The present application relates to valve operating tool technical field, especially to a kind of valve auxiliary rotating device, including power unit, hand wheel cooperation body and transmission mechanism, the transmission mechanism is connected between power unit and hand wheel cooperation body, the transmission mechanism and power unit and hand wheel cooperation body are all connected by detachable quick connecting structure;Multiple clamping jaws are provided on the hand wheel cooperation body, multiple clamping jaws are spaced distribution along the circumferential direction of hand wheel cooperation body, adjustable length of column rod is provided on the clamping jaw.The beneficial effects of the present application are: providing large torque output by power unit, replacing manual operation, solving the problem of large valve opening and closing torque, low efficiency of manual operation;Through detachable quick connecting structure, the quick assembly and separation of each module are realized, can be flexibly combined according to the needs of the scene, and high-risk valves can be remotely operated in a safe location, effectively avoiding direct risks such as high temperature and toxic medium.

Description

Technical Field

[0001] This invention relates to the field of valve operating tools, and more particularly to a valve auxiliary rotation device. Background Technology

[0002] In industries such as power, petroleum, chemical, and metallurgy, manual valves are among the most common fluid control devices. Currently, the opening and closing of manual valves relies entirely on human power to drive the valve stem. While this meets basic requirements under normal operating conditions, it reveals significant technical limitations in special application scenarios.

[0003] Firstly, large industrial valves (such as pipeline isolation valves with a diameter ≥ DN600, main control valves for water supply systems, and flue gas dampers) have extremely high opening and closing torque requirements. Taking a DN800 butterfly valve as an example, its maximum opening and closing torque can reach several thousand Newton-meters. Manual operation via handwheel is not only inefficient but also time-consuming, severely impacting the equipment's rapid response capability. Especially in emergency situations, operators may need several minutes or even longer to fully open or close the valve, failing to meet the rapid isolation requirements in accident scenarios.

[0004] Secondly, valve operation under high-risk conditions poses serious safety risks. When a valve leaks in a high-temperature steam pipeline, close-range manual operation can cause severe burns; when emergency operation is required on toxic medium control valves in chemical systems, operators face occupational injury risks such as poisoning and corrosion; in pipelines carrying flammable and explosive media, sparks generated during manual operation can lead to explosions. These high-risk scenarios require operators to stay as far away from the hazard source as possible, but existing purely manual operation methods cannot achieve remote control.

[0005] Third, valves in special installation locations suffer from poor accessibility. Valves in high-altitude pipe racks require operators to climb to great heights, which is not only physically demanding but also carries the risk of falls. Control valves in deep underground wells are located in confined spaces with insufficient light, making it difficult for operators to maneuver, resulting in low efficiency and safety hazards such as suffocation and collisions. Furthermore, in extreme conditions such as nuclear radiation environments or areas with toxic gas leaks, personnel are simply not permitted to enter the operating area.

[0006] Currently, although some electric valve actuators in existing technologies can achieve remote control, they usually need to be installed as an integrated unit with the valve, require on-site wiring and power supply, have high modification costs and long cycles, and cannot quickly adopt alternative drive solutions when the actuator fails. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a valve auxiliary rotation device to solve the problems of low efficiency of manual operation of large valves, poor safety of operation in high-risk working conditions, poor accessibility of valves in special positions, and lack of versatility and quick docking capability of existing tools.

[0008] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A valve auxiliary rotation device includes a power unit, a handwheel mating body, and a transmission mechanism. The transmission mechanism is connected between the power unit and the handwheel mating body and is used to transmit the rotational torque output by the power unit to the handwheel mating body. The transmission mechanism is connected to the power unit and the handwheel mating body through a detachable quick-connect structure. The handwheel mating body is provided with multiple grippers, which are distributed circumferentially along the handwheel mating body. Each gripper is provided with an adjustable extension length rod, which is used to insert into the spoke gap of the valve handwheel.

[0009] The beneficial effects of this invention are as follows: The power unit provides high torque output, replacing manual operation and solving the problems of high opening and closing torque and low efficiency of manual operation for large valves; the detachable quick-connect structure enables rapid assembly and separation of modules, allowing for flexible combination according to site requirements, and enabling remote operation of high-risk valves from a safe location, effectively avoiding direct risks such as high temperatures and toxic media; the adjustable extension bar on the gripper allows for adaptation to valve handwheels of different sizes and spoke spacing, solving the problems of poor specificity and insufficient versatility of traditional tools.

[0010] Based on the above technical solution, the present invention can be further improved as follows: Furthermore, the transmission mechanism is a telescopic link, which includes multiple telescopic sleeves. Adjacent telescopic sleeves are slidably connected and their extension length is locked by a locking structure.

[0011] The beneficial effects of adopting the above-mentioned further solution are: the length of the telescopic linkage can be freely adjusted according to the actual distance between the valve and the operator, adapting to the needs of different working spaces such as high-altitude pipe corridors and underground deep wells, and the operator can complete the operation in a safe position without climbing or entering a narrow space.

[0012] Furthermore, the locking structure includes a locking screw disposed on the outer telescopic sleeve and a plurality of positioning holes spaced apart along the axial direction disposed on the inner telescopic sleeve, wherein the locking screw is inserted into the positioning holes to achieve length locking.

[0013] The advantages of adopting the above-mentioned further solution are: the locking screw and positioning hole have a simple and reliable matching structure, are easy to operate, and the multi-stage positioning holes can realize multi-stage precise adjustment of the transmission mechanism length to meet the needs of different distance operations.

[0014] Furthermore, the quick-connect structure is a four-way connection structure, and the output end of the power unit, both ends of the transmission mechanism, and the input end of the handwheel mating body are respectively provided with matching four-way holes or four-way shafts.

[0015] The advantages of adopting the above-mentioned further solution are: the four-way connection structure has the advantages of large torque transmission, reliable connection and high centering accuracy, which can meet the requirements of large torque transmission; at the same time, it is easy to plug and unplug, and the modules can be quickly assembled and separated without tools, which improves the efficiency of on-site operation.

[0016] Furthermore, the square connection structure is also provided with a magnetic auxiliary connector, which is embedded in the side wall of the square hole and / or the square shaft.

[0017] The beneficial effects of adopting the above-mentioned further solution are: the magnetic auxiliary connector can provide an attractive force during insertion, preventing the modules from accidentally coming loose during the transmission process, while making the insertion process smoother and more stable, improving the reliability of the connection and the ease of operation.

[0018] Furthermore, the number of grippers is three, and the three grippers are evenly distributed at 120° intervals along the circumference of the handwheel engaging body.

[0019] The beneficial effects of adopting the above-mentioned further scheme are: the three-jaw structure can form a stable three-point support, and when it is in contact with the valve handwheel spokes, the force is balanced and the torque is transmitted smoothly; the 120° uniform distribution between the three jaws ensures that no matter what angle the valve handwheel is at, at least two jaws can be effectively engaged in the spoke gap.

[0020] Furthermore, the gripper is provided with a plurality of adjustment holes spaced apart along its length, and the rod can be selectively installed in different adjustment holes to adjust the radial extension distance of the rod relative to the center of the handwheel mating body.

[0021] The beneficial effect of adopting the above-mentioned further solution is that by installing the column rod in the adjustment holes at different radial positions, the distance between the column rod and the center of the handwheel mating body can be adjusted, which can adapt to valve handwheels of different diameter specifications and improve the versatility and adaptability of the device.

[0022] Furthermore, the outer surface of the column is covered with an anti-slip layer, which is a rubber layer or a silicone layer.

[0023] The beneficial effects of adopting the above-mentioned further solutions are: the anti-slip layer can increase the friction between the rod and the valve handwheel spokes, preventing the rod from coming out of the spoke gap during rotation, and ensuring the continuity and reliability of torque transmission; the rubber or silicone material also has a certain elasticity, which can play a buffering role when in contact, avoiding damage to the handwheel surface.

[0024] Furthermore, the power unit includes a drive motor and a planetary gear reduction mechanism connected to the output end of the drive motor. The output end of the planetary gear reduction mechanism is connected to the transmission mechanism. The planetary gear reduction mechanism is equipped with an overload protection module. When the output torque exceeds a set threshold, the overload protection module automatically disconnects the power transmission.

[0025] The beneficial effects of adopting the above-mentioned further solutions are: the planetary gear reduction mechanism has the characteristics of small size, large transmission ratio and strong load-bearing capacity, which can convert the high speed of the motor into a large torque output to meet the torque requirements of large valves; the overload protection module can automatically disconnect when the torque exceeds the limit to prevent damage to the valve stem or valve seals due to excessive force.

[0026] Furthermore, the drive motor is a brushless DC motor, and the power unit also includes a rechargeable battery module and a control switch. The control switch is a forward and reverse control switch used to control the forward and reverse rotation of the drive motor.

[0027] The advantages of adopting the above-mentioned further solutions are: the DC brushless motor has high efficiency, long life and convenient maintenance; the rechargeable battery module frees the device from the constraints of external power cords and is suitable for remote or power-free work sites; the forward and reverse control switch can realize bidirectional operation of valve opening and closing, meeting the requirements of fully open and fully closed valves.

[0028] Furthermore, the control switch is equipped with a remote control cable, the length of which is 2-20m.

[0029] The beneficial effects of adopting the above-mentioned further solutions are: remote control cables allow operators to control the motor to start, stop, and rotate forward and backward from a distance away from the valve; in high-risk working conditions (such as high-temperature steam leakage or toxic medium leakage), operators can complete the operation in a safe area, fundamentally avoiding occupational injuries such as burns and poisoning.

[0030] Furthermore, the handwheel is equipped with an auxiliary grip handle on its main body, which is used by the operator to manually assist in turning it.

[0031] The beneficial effects of adopting the above-mentioned further solution are: the auxiliary grip handle can serve as an auxiliary gripping point for the operator when the motor is driven, preventing the handwheel and the main body from shaking due to torque impact at the moment of start-up; when the motor cannot work, it can also serve as a manual operation interface, enabling emergency operation of the valve by manual rotation.

[0032] Furthermore, the telescopic link is made of aluminum alloy, and its telescopic length is 0.5-5m.

[0033] The advantages of adopting the above-mentioned further solutions are: the aluminum alloy material achieves lightweight while ensuring sufficient strength and rigidity, making it easy for operators to carry and assemble on site; the telescopic length range of 0.5-5m covers the needs of various operating scenarios from short distance to long distance. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the connection between the handwheel and the gripper of the present invention; The attached diagram lists the components represented by each number as follows: 1. Power unit; 2. Handwheel and main body; 3. Gripper; 4. Column rod; 5. Telescopic connecting rod; 6. Locking screw; 7. Positioning hole; 8. Square hole; 9. Square shaft; 10. Magnetic auxiliary connector; 11. Adjustment hole; 12. Auxiliary grip handle. Detailed Implementation

[0035] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0036] Example 1 like Figure 1 , Figure 2 As shown, this embodiment provides a valve auxiliary rotation device, including a power unit 1, a handwheel cooperating body 2, and a transmission mechanism.

[0037] Power unit 1 provides rotational driving force. Power unit 1 includes a drive motor and a planetary gear reduction mechanism connected to the output of the drive motor. The drive motor is a brushless DC motor with a rated power of 500W and a rated speed of 2000rpm. The planetary gear reduction mechanism has a reduction ratio of 50:1, which converts the high speed of the motor into a high torque output, with an output torque ≥300N·m, meeting the torque requirements for opening and closing large valves of DN600-DN1000. The planetary gear reduction mechanism also has an overload protection module. When the output torque exceeds a set threshold (e.g., 350N·m), the overload protection module automatically disconnects the power transmission to prevent excessive force from damaging the valve stem or valve seals. Power unit 1 also has a built-in rechargeable lithium battery module (48V, 10Ah capacity) and a control switch. The control switch is a forward and reverse control switch, which can control the forward and reverse rotation of the drive motor to realize the opening and closing operation of the valve. A 10m long remote control cable is connected to the control switch, allowing the operator to control the start, stop, and forward / reverse direction of the motor from a safe distance of 10m away from the valve.

[0038] The transmission mechanism is a telescopic link 5, connected between the power unit 1 and the handwheel mating body 2, used to transmit the rotational torque output by the power unit 1 to the handwheel mating body 2. The telescopic link 5 includes three telescopic sleeves, each made of aluminum alloy, with adjacent sleeves slidingly fitted together and the extended length locked by a locking structure. The locking structure includes a locking screw 6 on the outer telescopic sleeve and multiple axially spaced positioning holes 7 on the inner telescopic sleeve. In this embodiment, the telescopic range of the telescopic link 5 is 0.5-5m, and the operator can freely adjust the link length according to the actual distance between the valve and the operating position to adapt to the needs of different working spaces such as high-altitude pipe corridors and underground deep wells.

[0039] The output end of the power unit 1, both ends of the transmission mechanism, and the input end of the handwheel mating body 2 are each equipped with a matching four-way connection structure (four-way hole 8 or four-way shaft 9) to achieve quick plug-in connection between the modules. The specifications of the four-way connection structure are 12mm×12mm. Magnetic auxiliary connectors 10 (such as neodymium magnets) are also embedded in each four-way connection structure to provide attraction force during insertion and prevent the modules from accidentally loosening during transmission.

[0040] like Figure 1 As shown, the two ends of the telescopic connecting rod 5 are solid structures, and both ends are provided with the square shaft 9. The output end of the power unit 1 and the center of one end face of the handwheel mating body 2 are both provided with the square hole 8, thereby realizing quick plug-in connection.

[0041] In other embodiments of the present invention, the output end of the power unit 1, the two ends of the transmission mechanism, and the input end of the handwheel mating body 2 can also be connected by threads.

[0042] The handwheel mating body 2 is provided with multiple grippers 3, which are distributed circumferentially around the handwheel mating body 2. Each gripper 3 has an adjustable extension rod 4, which is used to insert into the spoke gap of the valve handwheel. Three grippers 3 are evenly spaced at 120° intervals around the handwheel mating body 2. The center of the handwheel mating body 2 has an inner square hole 8 for quick insertion with one end of the transmission mechanism. Multiple adjustment holes 11 are spaced along the length of the grippers 3, and the rod 4 can be selectively installed in different adjustment holes 11 to adjust the radial extension distance of the rod 4 relative to the center of the handwheel mating body 2. The outer surface of the rod 4 is covered with an anti-slip layer, which is a rubber layer.

[0043] In an embodiment of the present invention, in order to fix the column rod 4, a locking bolt can be provided on the side wall of the clamp 3 to lock the column rod 4.

[0044] In this embodiment, the handwheel body 2 is provided with an auxiliary grip handle 12, which is used by the operator to manually assist in rotation. When the motor is driven, the auxiliary grip handle 12 can serve as an auxiliary grip point for the operator to prevent the handwheel body 2 from shaking due to torque impact at the moment of start-up; when the motor cannot work, it can also serve as a manual operation interface to realize emergency operation of the valve by manual rotation.

[0045] The working principle of this embodiment is as follows: In use, the operator first installs the rod 4 into the appropriate adjustment hole 11 on the clamp 3 according to the diameter and spoke clearance of the valve handwheel, and then inserts the three clamps 3 into the spoke clearance of the valve handwheel so that the rod 4 abuts against the spokes. Then, according to the distance between the operator and the valve, the length of the telescopic connecting rod 5 is adjusted and locked by the locking screw 6. Next, the output end of the power unit 1, the transmission mechanism, and the handwheel mating body 2 are quickly connected in sequence through the four-way connection structure, and the magnetic auxiliary connecting piece 10 automatically adsorbs and locks. According to the required opening or closing direction of the valve, the operator controls the motor to rotate forward or backward through the remote control cable. The power is amplified by the reduction mechanism and then transmitted to the handwheel mating body 2 through the transmission mechanism, driving the valve handwheel to rotate, thereby realizing the remote opening and closing operation of the valve.

[0046] Example 2 The difference between this embodiment and Embodiment 1 is that the handwheel has four grippers 3 (four-jaw structure) that cooperate with the body 2, which are evenly distributed at 90° intervals, making it suitable for valve handwheels with a four-spoke structure. The adjustment method of the rod 4 is the same.

[0047] Example 3 The difference between this embodiment and Embodiment 1 is that the transmission mechanism uses a fixed-length connecting rod (non-extendable), with a length of 1.5m, suitable for operation scenarios where the distance between the operator and the valve is relatively fixed. Both ends of the fixed-length connecting rod are also equipped with a four-way connection structure and a magnetic auxiliary connector 10.

[0048] Example 4 The difference between this embodiment and Embodiment 1 is that the remote control cable is 20m long, which is suitable for ultra-long-distance operation scenarios, such as nuclear radiation areas or toxic gas leakage areas, and the operator can complete valve operation in a completely safe area.

[0049] In the description of this invention, it should be understood that the terms "center," "length," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "inner," "outer," "circumferential," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the system or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A valve auxiliary rotation device, characterized in that, The device includes a power unit (1), a handwheel mating body (2), and a transmission mechanism. The transmission mechanism is connected between the power unit (1) and the handwheel mating body (2) and is used to transmit the rotational torque output by the power unit (1) to the handwheel mating body (2). The transmission mechanism is connected to the power unit (1) and the handwheel mating body (2) through a detachable quick-connect structure. The handwheel mating body (2) is provided with multiple grippers (3), which are distributed circumferentially along the handwheel mating body (2). Each gripper (3) is provided with an adjustable extension rod (4), which is used to insert into the spoke gap of the valve handwheel.

2. The valve auxiliary rotation device according to claim 1, characterized in that, The transmission mechanism is a telescopic link (5), which includes multiple telescopic sleeves. Two adjacent telescopic sleeves are slidably connected and the extension length is locked by a locking structure.

3. The valve auxiliary rotation device according to claim 2, characterized in that, The locking structure includes a locking screw (6) on the outer telescopic sleeve and a plurality of positioning holes (7) spaced apart along the axial direction on the inner telescopic sleeve. The locking screw (6) is inserted into the positioning holes (7) to achieve length locking.

4. The valve auxiliary rotation device according to claim 1, characterized in that, The quick-connect structure is a square connection structure. The output end of the power unit (1), the two ends of the transmission mechanism and the input end of the handwheel mating body (2) are respectively provided with matching square holes (8) or square shafts (9).

5. A valve auxiliary rotation device according to claim 4, characterized in that, The four-way connection structure is also provided with a magnetic auxiliary connector (10), which is embedded in the side wall of the four-way hole (8) and / or the four-way shaft (9).

6. A valve auxiliary rotation device according to any one of claims 1 to 5, characterized in that, The number of grippers (3) is three, and the three grippers (3) are evenly distributed at 120° intervals along the circumference of the handwheel engaging body (2).

7. A valve auxiliary rotation device according to any one of claims 1 to 5, characterized in that, The gripper (3) is provided with a plurality of adjustment holes (11) spaced apart along its length. The rod (4) can be selectively installed in different adjustment holes (11) to adjust the radial extension distance of the rod (4) relative to the center of the handwheel mating body (2).

8. A valve auxiliary rotation device according to any one of claims 1 to 5, characterized in that, The outer surface of the column (4) is covered with an anti-slip layer, which is a rubber layer or a silicone layer.

9. A valve auxiliary rotation device according to any one of claims 1 to 5, characterized in that, The power unit (1) includes a drive motor and a planetary gear reduction mechanism connected to the output end of the drive motor. The output end of the planetary gear reduction mechanism is connected to the transmission mechanism. The planetary gear reduction mechanism is equipped with an overload protection module. When the output torque exceeds a set threshold, the overload protection module automatically disconnects the power transmission.

10. A valve auxiliary rotation device according to any one of claims 1 to 5, characterized in that, The handwheel is equipped with an auxiliary grip handle (12) on the main body (2), which is used by the operator to manually assist in turning it.

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