Grounding switching-on and switching-off electric operating mechanism for high-power line pilot frequency test system

Abstract

The utility model discloses a grounding switching-on and switching-off electric operating mechanism for a high-power line pilot frequency test system, which comprises a square-opening hollow-out frame, a wire outlet column insulator and a wire inlet column insulator, the wire outlet column insulator and the wire inlet column insulator are respectively mounted on two sides of the top end of the square-opening hollow-out frame, and an L-shaped wire outlet seat and an L-shaped wire inlet seat are respectively fixed at the top ends of the wire outlet column insulator and the wire inlet column insulator. A longitudinal shaft is rotatably mounted among the plurality of L-shaped wire inlet seats in the same X-axis direction, a double-arm conductive disconnecting link which is always in mutual contact with the L-shaped wire inlet seats is mounted on the surface of the longitudinal shaft, and a convex plate is integrally formed on the outer wall of one side of the square opening hollow frame. According to the utility model, an electric switching-on and switching-off mode is adopted, an operator does not need to directly contact a high-voltage power supply, the risk of electric shock is reduced, and the operator can realize switching-on and switching-off of the switch only by sending out a corresponding signal through the control device, does not need to carry out heavy physical operation, and can complete switching-on and switching-off in a short time.

Description

Technical Field

[0001] The utility model relates to the technical field of circuits, in particular to a grounding opening and closing electric operating mechanism for a high-power line frequency-variable testing system. Background Art

[0002] The high-power line frequency-variable test system is a professional power line testing device primarily used to test power frequency parameters of high-voltage lines to ensure stable power system operation. The system consists of a frequency-variable power supply, a test host, accessory kits, and software. The frequency-variable power supply converts single-phase AC 220V power into a controllable three-phase pulse current signal, while the test host collects, processes, and analyzes test data, including voltage, current, active power, and reactive power. Controlled by software, the entire testing process is simple and convenient, with real-time display of test results and the generation of detailed test reports. The grounding tripping and closing electric operating mechanism is a key component in high-power line frequency-variable testing systems. Its primary function is to close and open the disconnector to ensure safe operation and maintenance of the line. The operating mechanism, consisting of a closing spring, an opening spring, and an operating mechanism, is used to close and open the disconnector. When closing or opening the disconnector, the operator uses an extension rod to convert rotary motion into linear motion for the operating mechanism, compressing or stretching the closing or opening spring, pushing the operating mechanism to close or open the disconnector. However, manual operation is required to complete the closing and opening operations. The use of an extension rod requires physical force, which increases operator effort and energy for large or high-positioned disconnectors, making operation more difficult. Furthermore, manually operating the extension rod to close or open the disconnector takes time, making it difficult to quickly operate, especially in emergency situations, and thus hindering normal operation of the equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a grounding opening and closing electric operating mechanism for a high-power line frequency testing system, which utilizes a rotating self-locking unit and a swing-type pull rod structure to swing a double-arm conductive knife switch, so that the L-shaped outgoing line seat and L-shaped incoming line seat on the disconnector can complete the closing and closing operations, thereby solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a grounding separation and combination electric operating mechanism for a high-power line frequency testing system, comprising a square-mouthed hollow frame and an outlet post insulator and an incoming post insulator respectively installed on both sides of the top of the square-mouthed hollow frame, the tops of the outlet post insulator and the incoming post insulator are respectively fixed with an L-shaped outlet seat and an L-shaped incoming seat, a longitudinal axis is rotatably installed between several L-shaped incoming seat in the same X-axis direction, a double-arm conductive knife switch which is always in contact with the L-shaped incoming seat is installed on the surface of the longitudinal axis, a convex plate is integrally formed on the outer wall of one side of the square-mouthed hollow frame, a rotary self-locking unit is installed on the outer wall of one side of the convex plate, the output end of the rotary self-locking unit is installed with a rotary swing rod structure for driving the double-arm conductive knife switch to rotate clockwise or counterclockwise, and a motor controller is installed on the outer wall of one side of the square-mouthed hollow frame, and the output end of the motor controller is electrically connected to the input end of the rotary self-locking unit.

[0005] Preferably, arms are integrally formed on both side outer walls of the L-shaped outlet seat, and the top ends of the arms are provided with sloped portions.

[0006] Preferably, the double-arm conductive knife switch includes two square copper arms fixed at one end of the longitudinal axis surface and a copper column fixed between the two square copper arms, and one side outer wall of the square copper arm is in contact with one side outer wall of the L-shaped feeder seat.

[0007] Preferably, the rotary self-locking unit includes a stepper motor mounted on an outer wall of one side of the convex plate and a worm gear transmission structure mounted on an output end of the stepper motor for driving the swing-type pull rod structure to move.

[0008] Preferably, the swinging pull rod structure includes a main shaft rotatably mounted on the outer wall on the other side of the convex plate, a swing arm fixed at one end of the main shaft, and a connecting rod movably mounted at the tail end of the double-arm conductive knife switch, and the bottom end of the connecting rod is movably connected to one end of the swing arm.

[0009] Preferably, the output end of the stepper motor drives the main shaft to rotate through a worm gear transmission structure, a universal ball head 1 is installed on the outer wall of one side of the swing arm, and a universal ball head 2 is installed on the outer wall of one side of the tail end of the double-arm conductive knife switch, and the two ends of the connecting rod are connected to the universal ball head 1 and the universal ball head 2 through a fisheye joint.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the grounding separation and closing electric operating mechanism for the high-power line frequency testing system is equipped with a motor controller, a swing-type pull rod structure and other structures that cooperate with each other. The motor controller controls the start, stop and rotation direction of the rotary self-locking unit to ensure the smooth closing or opening operation. The swing-type pull rod structure converts the rotational motion of the motor into linear motion, pushing the double-arm conductive knife switch to swing. The rotary self-locking unit maintains the stability of the pull rod to prevent the pull rod from rebounding due to external factors. Its electric closing and closing method does not require the operator to directly contact the high-voltage power supply, reducing the risk of electric shock. The staff only needs to send a corresponding signal through the control device to realize the closing and closing of the switch. There is no need to perform heavy physical operations, and it can be completed in a short time, which improves the operation speed and meets the purpose of quickly closing or opening the switch in an emergency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 This is a side structural diagram of the present utility model;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model Figure 3 .

[0016] In the figure: 1. Square-mouth hollow frame; 2. Convex plate; 3. Outlet post insulator; 4. L-shaped outlet seat; 401. Arm; 5. Insulator of the incoming post; 6. L-shaped incoming seat; 7. Double-arm conductive knife switch; 701. Square-mouth copper arm; 702. Copper column; 8. Rotating swing type pull rod structure; 801. Main shaft; 802. Swing arm; 803. Connecting rod; 804. Universal ball joint 1; 805. Universal ball joint 2; 9. Rotary self-locking unit; 10. Motor controller; 11. Vertical axis. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-5The utility model provides an embodiment: a grounding separation and combination electric operating mechanism for a high-power line frequency testing system, comprising a square-mouthed hollow frame 1 and an outlet post insulator 3 and an incoming post insulator 5 respectively installed on both sides of the top of the square-mouthed hollow frame 1, an L-shaped outlet seat 4 and an L-shaped incoming seat 6 are fixed to the top of the outlet post insulator 3 and the incoming post insulator 5, a longitudinal shaft 11 is rotatably installed between a plurality of L-shaped incoming seat 6 in the same X-axis direction, a double-arm conductive knife switch 7 which is always in contact with the L-shaped incoming seat 6 is installed on the surface of the longitudinal shaft 11, a convex plate 2 is integrally formed on the outer wall of one side of the square-mouthed hollow frame 1, a rotary self-locking unit 9 is installed on the outer wall of one side of the convex plate 2, an output end of the rotary self-locking unit 9 is installed with a rotary swing type pull rod structure 8 for driving the double-arm conductive knife switch 7 to rotate clockwise or counterclockwise, a motor controller 10 is installed on the outer wall of one side of the square-mouthed hollow frame 1, and the output end of the motor controller 10 is electrically connected to the input end of the rotary self-locking unit 9;

[0019] The outer walls of both sides of the L-shaped outlet seat 4 are integrally formed with a support arm 401, and the top of the support arm 401 is provided with a slope portion. The double-arm conductive knife switch 7 includes two square copper arms 701 fixed at one end of the surface of the longitudinal axis 11 and a copper column 702 fixed between the two square copper arms 701. The outer wall of one side of the square copper arm 701 contacts the outer wall of one side of the L-shaped incoming line seat 6. When the double-arm conductive knife switch 7 actively swings down and contacts the L-shaped outlet seat 4, the end of the square copper arm 701 away from the L-shaped incoming line seat 6 contacts the support arm 401. Copper is an excellent conductive material with high electrical conductivity, which ensures the good electrical conductivity of the square copper arm 701. The copper column 702 connects the two square copper arms 701. Its structural design has strong mechanical strength and can withstand large mechanical loads and electrical loads, which ensures that the double-arm conductive knife switch 7 has high stability during operation.

[0020] The rotary self-locking unit 9 includes a stepper motor mounted on the outer wall of one side of the convex plate 2 and a worm gear transmission structure installed at the output end of the stepper motor for driving the swing-type pull rod structure 8. The rotary self-locking unit 9 is composed of the stepper motor and the worm gear transmission structure, which enables the double-arm conductive knife switch 7 to have a self-locking function during the swinging process, thereby ensuring the stable operation of the equipment under various working conditions.

[0021] The swing-type pull rod structure 8 includes a main shaft 801 rotatably mounted on the outer wall of the other side of the convex plate 2, a swing arm 802 fixed at one end of the main shaft 801, and a connecting rod 803 movably mounted at the tail end of the double-arm conductive knife switch 7. The bottom end of the connecting rod 803 is movably connected to one end of the swing arm 802. The output end of the stepping motor drives the main shaft 801 to rotate through a worm gear transmission structure. A universal ball joint 804 is mounted on one outer wall of the swing arm 802. A universal ball joint 805 is mounted on one outer wall of the tail end of the double-arm conductive knife switch 7. The two ends of the connecting rod 803 are connected to the universal ball joints 804 and 805 respectively through fisheye joints.

[0022] When the rotary self-locking unit 9 drives the swinging pull rod structure 8 to move, the rotary self-locking unit 9 will drive the main shaft 801 and the swing arm 802 to rotate. When the swing arm 802 rotates upward, the end of the swing arm 802 forces the double-arm conductive knife switch 7 to move through the connecting rod 803. At this time, the double-arm conductive knife switch 7 rotates with the longitudinal axis 11 as the central axis until the square copper arm 701 and the arm 401 are in contact. The universal ball head 1 804 and the universal ball head 2 805 ensure that the two ends of the connecting rod 803 are in an active state.

[0023] When the embodiment of the present application is in use, the staff first sends a closing or opening signal to the motor controller 10 through the control device in the high-power line frequency test system. After receiving the closing or opening signal, the motor controller 10 starts the motor in the rotary self-locking unit 9. The rotary self-locking unit 9 serves as a driving power source to drive the swing-type pull rod structure 8 to move. The swing-type pull rod structure 8 converts the rotational motion into a counterclockwise or clockwise swinging motion of the double-arm conductive knife switch 7 through the rotation of the rotary self-locking unit 9. The self-locking function of the rotary self-locking unit 9 plays a key role in this process. It can keep the double-arm conductive knife switch 7 stable during the rotation process. To prevent the pull rod from rebounding due to external factors, the linear motion of the swinging pull rod structure 8 pushes the double-arm conductive knife switch 7 to swing. When the double-arm conductive knife switch 7 swings down and contacts the L-shaped outlet seat 4, the L-shaped outlet seat 4 and the L-shaped incoming seat 6 are connected to each other through the double-arm conductive knife switch 7, completing the closing operation and realizing the closure of the circuit. After the operation is completed, the operator sends a stop signal through the control device, and the motor controller 10 responds and stops the rotating self-locking unit 9. The motor controller 10 controls the start, stop and rotation direction of the rotating self-locking unit 9 to ensure the smooth closing or opening operation, thereby achieving the purpose of electric closing and opening.

Claims

1. A grounding switching electric operating mechanism for a high-power line frequency-variable test system, characterized by: The invention comprises a square-mouth hollow frame (1) and an outlet post insulator (3) and an inlet post insulator (5) respectively installed on both sides of the top of the square-mouth hollow frame (1); an L-shaped outlet seat (4) and an L-shaped inlet seat (6) are respectively fixed on the top of the outlet post insulator (3) and the inlet post insulator (5); a longitudinal axis (11) is rotatably installed between a plurality of L-shaped inlet seats (6) in the same X-axis direction; a double-arm conductive knife switch (7) which is always in contact with the L-shaped inlet seat (6) is installed on the surface of the longitudinal axis (11); A convex plate (2) is integrally formed on one side outer wall of the square-mouthed hollow frame (1), a rotary self-locking unit (9) is installed on one side outer wall of the convex plate (2), an output end of the rotary self-locking unit (9) is installed with a rotary swing type pull rod structure (8) for driving the double-arm conductive knife switch (7) to rotate clockwise or counterclockwise, and a motor controller (10) is installed on one side outer wall of the square-mouthed hollow frame (1), and the output end of the motor controller (10) is electrically connected to the input end of the rotary self-locking unit (9).

2. The grounding switching electric operating mechanism for a high-power line frequency-varying test system according to claim 1, characterized in that: Both side outer walls of the L-shaped outlet seat (4) are integrally formed with support arms (401), and the top ends of the support arms (401) are provided with sloped portions.

3. The grounding switching electric operating mechanism for a high-power line frequency-varying test system according to claim 1, characterized in that: The double-arm conductive knife switch (7) comprises two square copper arms (701) fixed at one end of the surface of the longitudinal axis (11) and a copper column (702) fixed between the two square copper arms (701), and one side outer wall of the square copper arm (701) contacts one side outer wall of the L-shaped inlet seat (6).

4. The grounding switching electric operating mechanism for a high-power line frequency-varying test system according to claim 1, characterized in that: The rotary self-locking unit (9) comprises a stepper motor mounted on an outer wall of one side of the convex plate (2) and a worm gear transmission structure mounted on the output end of the stepper motor for driving the swing-type pull rod structure (8) to move.

5. The grounding switching electric operating mechanism for a high-power line frequency-varying test system according to claim 4, characterized in that: The swing-type pull rod structure (8) comprises a main shaft (801) rotatably mounted on the outer wall on the other side of the convex plate (2), a swing arm (802) fixed at one end of the main shaft (801), and a connecting rod (803) movably mounted at the tail end of the double-arm conductive knife switch (7), wherein the bottom end of the connecting rod (803) is movably connected to one end of the swing arm (802).

6. The grounding switching electric operating mechanism for a high-power line frequency-varying test system according to claim 5, characterized in that: The output end of the stepper motor drives the main shaft (801) to rotate through a worm gear transmission structure, a universal ball head 1 (804) is installed on the outer wall of one side of the swing arm (802), a universal ball head 2 (805) is installed on the outer wall of one side of the tail end of the double-arm conductive knife switch (7), and the two ends of the connecting rod (803) are connected to the universal ball head 1 (804) and the universal ball head 2 (805) through fisheye joints.

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