A load switch operating mechanism

Abstract

This utility model relates to the field of load switch technology, specifically to an operating mechanism for a load switch, including a positioning component and a mounting component. The positioning component consists of a fixed frame, a rotating shaft, a connecting rod, gear A, gear B, a ratchet ring, a pawl, spring A, spring B, a retaining ball, and a support plate. The rotating shaft is rotatably connected to the center of the outer surface of the fixed frame. In this load switch operating mechanism, the operator rotates the rotating shaft on the fixed frame, causing gear A to rotate. Gear A has three precisely positioned circular slots that engage with the retaining ball pressed by spring B, helping the operator determine the three different states of the device. The rotation of gear A drives gear B to rotate as well.

Description

Technical Field

[0001] This utility model relates to the field of load switch technology, specifically to an operating mechanism for a load switch. Background Technology

[0002] A load switch is a type of switching device whose function is between a circuit breaker (which can interrupt short-circuit current) and a disconnector (which is only used to isolate power supply). It is mainly used for the control and protection of load current in power systems. It is a type of switching device between a circuit breaker and a disconnector, with a simple arc extinguishing device. It can switch load current but cannot interrupt short-circuit current.

[0003] In a manual operating mechanism for a three-position load switch disclosed in CN222813472U, when the device is in the open state, pulling the lever to the right causes the limit lever to move to the right, disengaging it from the limit hole. This movement of the limit lever causes the limit plate to move to the right, compressing the first spring. When the first spring is compressed to its shortest length, the left end of the limit lever disengages from the limit hole. Turning the knob causes the connecting rod to rotate, which in turn rotates the first spring. When one gear rotates, it drives the second gear to rotate, causing the mating hole to misalign with the limit rod. When the pull rod is released, the second gear will block the limit rod. At this time, the first spring is still in a compressed state. If the knob is rotated further, when the second gear rotates to the closed or grounded state, the first spring will push the baffle to the left. The baffle will drive the limit rod to the left, causing the limit rod to re-enter the limit hole. This prevents the operator from continuing to rotate the knob, which could cause the mating rod and the insulating base to be squeezed. Over time, this could cause deformation of the mating rod and the insulating base, leading to damage to the device.

[0004] However, the operating mechanism of this load switch has the following disadvantages:

[0005] (1) The operating mechanism of the load switch has a weak high-precision positioning function. When in use, the device only uses two gears to rotate and interact to adjust, which cannot clearly show the adjustment situation. Furthermore, the shaking of the device may cause the gears to rotate slightly.

[0006] (2) The operating mechanism of the load switch has weak maintenance function. During use, the transmission structure may be worn after long-term use, which may affect the actual effect. Utility Model Content

[0007] The purpose of this invention is to provide an operating mechanism for a load switch to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an operating mechanism for a load switch, comprising a positioning component and an installation component. The positioning component consists of a fixed frame, a rotating shaft, a connecting rod, gear A, gear B, a ratchet ring, a pawl, spring A, spring B, a retaining ball, and a support plate. The rotating shaft is rotatably connected to the center of the outer surface of the fixed frame. A connecting rod is fixedly connected to one end of the rotating shaft. Gear A is fixedly connected to one end of the connecting rod. Gear B meshes with the outer surface of gear A. A ratchet ring is fixedly connected to one end of gear B. A pawl is engaged with the outer surface of the ratchet ring. A fixed plate is fixedly connected to the bottom of the inner sidewall of the fixed frame. Spring B is fixedly connected to one end of the fixed plate. A circular slot is formed on the outer surface of gear A. A retaining ball is engaged with the inner wall of the circular slot. Spring B is fixedly connected to the back edge of the retaining ball. A support plate is fixedly connected to one end of spring B.

[0009] The mounting assembly consists of a mating block, a fixing box, a sealing gasket, a positioning rod, a plug rod, and a connecting shaft, all fixed to the bottom of the fixing frame. A sealing gasket is fixedly connected to one side of the fixing frame, and a fixing box is provided at one end of the sealing gasket. A positioning rod is fixedly connected to the other end of the gear B, and a plug rod is fixedly connected to one end of the positioning rod. A connecting shaft is engaged at one end of the plug rod.

[0010] Preferably, positioning plates are rotatably connected to both ends of the connecting shaft, and a rotating plate is fixedly connected to the center of the outer surface of the connecting shaft. When the operator rotates the transmission structure, the connecting shaft will rotate within the positioning plates, causing the rotating plate to rotate.

[0011] Preferably, the inner bottom wall of the fixing box is provided with fixing grooves at both ends, and the inner wall of the fixing groove is fixedly connected with a docking piece, which docks with the rotating piece to form a cutting and isolation situation.

[0012] Preferably, the inner bottom wall edge of the fixing box is provided with a docking groove, and the inner wall of the docking groove is engaged with the bottom of the docking block, so that the docking block will dock with the docking groove on the inner wall of the fixing box.

[0013] Preferably, the inner wall of the spring A is provided with a telescopic rod A, one end of which is fixedly connected to the center of one end of the fixed plate. The telescopic rod A can stabilize the deformation of the spring A.

[0014] Preferably, the inner wall of the spring B is provided with a telescopic rod B, one end of which is fixedly connected to the center of the back of the ball, and the telescopic rod B can stabilize the horizontal deformation of the spring B.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The operating mechanism of this load switch, through the arrangement of a fixed frame, rotating shaft, connecting rod, gear A, gear B, ratchet ring, pawl, spring A, spring B, retaining ball, and support plate, allows the operator to rotate the rotating shaft on the fixed frame during use. This rotation drives gear A to rotate. Gear A has three precisely positioned circular slots that engage with the retaining ball pressed by spring B, helping the operator determine the three different states of the device. When gear A rotates, it drives gear B to rotate. The ratchet ring at one end of gear B rotates continuously, pressing the pawl backward. The pawl then presses against spring A, which is not in contact with it, causing spring A to push it back to its original position. The ratchet ring and pawl continuously engage, and the pawl falls into the groove of the ratchet ring, producing a "click" sound, providing clear operational feedback and preventing slight rotation of the gears due to vibration.

[0017] 2. The operating mechanism of this load switch, through the arrangement of a fixed box, rotating shaft, fixed frame, docking block, sealing gasket, positioning rod, insertion rod, and connecting shaft, allows the operator to directly pull the fixed frame inside the fixed box to pull out the fixed frame carrying the transmission structure for maintenance. After maintenance, the docking block at the bottom of the fixed frame is inserted along the docking groove on the inner wall of the fixed box, allowing the fixed frame to enter the fixed box. At the same time, the operator needs to rotate the rotating shaft to allow the transmission structure to interact, so that the insertion rod on the positioning rod at one end of gear B is inserted into the connecting shaft. After proper alignment, the fixed box and fixed frame are completely fitted together, and the sealing gasket on the side of the fixed frame is pressed against the inner wall of the fixed box, completing the sealing and positioning installation. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention;

[0019] Figure 2 This is a schematic diagram of the fixing frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the ratchet ring of this utility model;

[0021] Figure 4 This is a schematic diagram of the rotating plate of this utility model.

[0022] In the diagram: 1. Positioning assembly; 101. Fixing frame; 102. Rotating shaft; 103. Connecting rod; 104. Gear A; 105. Gear B; 106. Ratchet ring; 107. Pawl; 108. Spring A; 109. Spring B; 110. Ball catcher; 111. Support plate; 2. Mounting assembly; 201. Connecting block; 202. Fixing box; 203. Sealing gasket; 204. Positioning rod; 205. Insert rod; 206. Connecting shaft; 3. Positioning plate; 4. Rotating piece; 5. Connecting piece; 6. Telescopic rod A; 7. Telescopic rod B; 8. Fixing plate. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-4 As shown, this utility model provides a technical solution: an operating mechanism for a load switch, including a positioning component 1 and a mounting component 2. The positioning component 1 consists of a fixed frame 101, a rotating shaft 102, a connecting rod 103, gear A104, gear B105, a ratchet ring 106, a pawl 107, a spring A108, a spring B109, a retaining ball 110, and a support plate 111. The rotating shaft 102 is rotatably connected to the center of the outer surface of the fixed frame 101. One end of the rotating shaft 102 is fixedly connected to the connecting rod 103, and one end of the connecting rod 103 is fixedly connected to... There is a gear A104, and a gear B105 meshes with the outer surface of the gear A104. A ratchet ring 106 is fixedly connected to one end of the gear B105. A pawl 107 is engaged with the outer surface of the ratchet ring 106. A fixing plate 8 is fixedly connected to the bottom of the inner side wall of the fixing frame 101. A spring B109 is fixedly connected to one end of the fixing plate 8. A circular slot is opened on the outer surface of the gear A104. A retaining ball 110 is engaged with the inner wall of the circular slot. A spring B109 is fixedly connected to the back edge of the retaining ball 110. A support plate 111 is fixedly connected to one end of the spring B109.

[0025] Mounting component 2 consists of a mating block 201, a fixing box 202, a sealing gasket 203, a positioning rod 204, a plug rod 205, and a connecting shaft 206, all fixed to the bottom of the fixing frame 101. A sealing gasket 203 is fixedly connected to one end of the side of the fixing frame 101, and a fixing box 202 is located at one end of the sealing gasket 203. A positioning rod 204 is fixedly connected to the other end of gear B105, and a plug rod 205 is fixedly connected to one end of the positioning rod 204. The connecting shaft 206 is engaged at one end of the plug rod 205. The mounting assembly is constructed via the fixing frame 101, rotating shaft 102, connecting rod 103, gear A104, gear B105, ratchet ring 106, pawl 107, spring A108, spring B109, retaining ball 110, and support plate 111. In operation, the operator rotates the rotating shaft 102 on the fixed frame 101, causing the shaft to drive the gear A104 to rotate. Gear A104 has three precisely positioned circular slots that engage with the retaining ball 110 pressed by the spring B109, helping the operator determine the device's three different states. When gear A104 rotates, it drives gear B105 to rotate. The ratchet ring 106 at one end of gear B105 rotates continuously, pressing the pawl 107 backward. The pawl 107 then presses against the spring A108, which is not in contact with it, causing the spring A108 to push it back to its original position. The ratchet ring 106 and pawl 107 continuously engage, and the pawl 107 falls into the tooth groove of the ratchet ring 106, producing a "click" sound. To provide clear operational feedback and prevent minor gear rotation due to vibration, the system is designed with a fixed box 202, rotating shaft 102, fixed frame 101, docking block 201, sealing gasket 203, positioning rod 204, insertion rod 205, and connecting shaft 206. During use, the operator can directly pull the fixed frame 101 inside the fixed box 202 to pull out the frame carrying the transmission structure for maintenance. After maintenance, the docking block 201 at the bottom of the fixed frame 101 is inserted into the docking groove on the inner wall of the fixed box 202, allowing the fixed frame 101 to enter the fixed box 202. Simultaneously, the operator needs to rotate the rotating shaft 102 to allow the transmission structure to interact, positioning the rod at one end of gear B105. The insertion rod 205 on 204 is inserted into the connecting shaft 206. After alignment, the fixing box 202 and the fixing frame 101 are completely fitted together. The sealing gasket 203 on the side of the fixing frame 101 will be pressed against the inner wall of the fixing box 202, completing the sealing and positioning installation. It should be noted that the main function of the support plate 111 and the fixing plate 8 is to determine the position of springs A108 and B109 on the inner wall of the fixing frame 101, ensuring the normal operation of the transmission structure. The ratchet ring 106 and the other end of the pawl 107 rotate on the inner wall of the fixing frame 101 to stabilize the position of the transmission structure. The three position states mentioned correspond to the three situations of cutting off and isolation in the comparative document. There are springs A108 and their corresponding structures on both sides of the pawl 107.Because the device operates in a continuous, repetitive back-and-forth motion, the shape of both sides of the pawl 107 needs to be able to mate with the ratchet ring 106;

[0026] Positioning plates 3 are rotatably connected to both ends of the connecting shaft 206, and a rotating plate 4 is fixedly connected to the center of the outer surface of the connecting shaft 206. With the arrangement of the connecting shaft 206, positioning plates 3 and rotating plate 4, when the operator rotates the transmission structure during use, the connecting shaft 206 will rotate within the positioning plate 3, causing the rotating plate 4 to rotate.

[0027] The inner bottom wall of the fixing box 202 has fixing grooves at both ends. The inner wall of the fixing groove is fixedly connected to the docking piece 5. With the fixing box 202 and the docking piece 5, the docking piece 5 will dock with the rotating piece 4 during use, forming a cutting and isolation situation.

[0028] The inner bottom wall edge of the fixing box 202 is provided with a docking groove. The inner wall of the docking groove is engaged with the bottom of the docking block 201. With the setting of the fixing box 202 and the docking block 201, the docking block 201 will dock with the docking groove on the inner wall of the fixing box 202 during use.

[0029] The inner wall of spring A108 is provided with a telescopic rod A6. One end of the telescopic rod A6 is fixedly connected to the center of one end of the fixed plate 8. Through the arrangement of spring A108, telescopic rod A6 and fixed plate 8, the telescopic rod A6 can stabilize the deformation of spring A108 during use.

[0030] The inner wall of the spring B109 is provided with a telescopic rod B7. One end of the telescopic rod B7 is fixedly connected to the center of the back of the locking ball 110. Through the arrangement of the spring B109, the telescopic rod B7 and the locking ball 110, the telescopic rod B7 can stabilize the horizontal deformation of the spring B109 during use.

[0031] In this invention, the working steps of the device are as follows:

[0032] First step: The operator rotates the rotating shaft 102 on the fixed frame 101, causing the rotating shaft 102 to drive the gear A104 to rotate. The gear A104 has three circular slots with defined positions. The circular slots will engage with the ball 110 squeezed by the spring B109, helping the operator to determine the three different states of the device. When the gear A104 rotates, it will drive the gear B105 to rotate. The ratchet ring 106 at one end of the gear B105 will rotate continuously, squeezing the pawl 107 backward. The pawl 107 will squeeze the spring A108, which is not in contact with it, and the spring A108 will push it back to its original position. The ratchet ring 106 and the pawl 107 will continuously engage. The pawl 107 will fall into the tooth groove of the ratchet ring 106 and make a "click" sound, providing clear operation feedback, while preventing the gear from rotating slightly due to vibration.

[0033] The second step: the rotation of gear B105 will drive the positioning rod 204 to rotate, which will drive the connecting shaft 206 to rotate within the positioning plate 3, causing the rotating piece 4 to rotate. The docking piece 5 will dock with the rotating piece 4, forming a cutting and isolation situation.

[0034] The third step: The worker can directly pull the fixed frame 101 inside the fixed box 202 to pull out the fixed frame 101 carrying the transmission structure, and maintain the transmission structure. After maintenance, the docking block 201 at the bottom of the fixed frame 101 is inserted into the docking groove on the inner wall of the fixed box 202, so that the fixed frame 101 enters the fixed box 202. At the same time, the worker needs to rotate the rotating shaft 102 to make the transmission structure interact with each other, so that the insertion rod 205 on the positioning rod 204 at one end of the gear B105 is inserted into the connecting shaft 206. After the docking is completed, the fixed box 202 and the fixed frame 101 are completely fitted together. The sealing gasket 203 on the side of the fixed frame 101 will be squeezed against the inner wall of the fixed box 202 to complete the sealing and positioning installation.

[0035] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0036] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0037] 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 operating mechanism for a load switch, comprising a positioning component (1) and a mounting component (2), characterized in that: The positioning assembly (1) consists of a fixed frame (101), a rotating shaft (102), a connecting rod (103), gear A (104), gear B (105), a ratchet ring (106), a pawl (107), spring A (108), spring B (109), a retaining ball (110), and a support plate (111). The rotating shaft (102) is rotatably connected to the center of the outer surface of the fixed frame (101). One end of the rotating shaft (102) is fixedly connected to the connecting rod (103). One end of the connecting rod (103) is fixedly connected to gear A (104). The outer surface of gear A (104) is engaged with... Gear B (105), one end of which is fixedly connected to a ratchet ring (106), the outer surface of which is engaged with a pawl (107), the bottom of the inner sidewall of the fixed frame (101) is fixedly connected to a fixed plate (8), one end of which is fixedly connected to a spring B (109), the outer surface of gear A (104) is provided with a circular slot, the inner wall of which is engaged with a ball (110), the back edge of which is fixedly connected to a spring B (109), and one end of which is fixedly connected to a support plate (111); The mounting assembly (2) consists of a docking block (201), a fixing box (202), a sealing gasket (203), a positioning rod (204), a plug rod (205), and a connecting shaft (206) fixed to the bottom of the fixing frame (101). The sealing gasket (203) is fixedly connected to one side of the fixing frame (101), and the fixing box (202) is provided at one end of the sealing gasket (203). The positioning rod (204) is fixedly connected to the other end of the gear B (105), and the plug rod (205) is fixedly connected to one end of the positioning rod (204). The connecting shaft (206) is snapped into one end of the plug rod (205).

2. The operating mechanism of a load switch according to claim 1, characterized in that: Positioning plates (3) are rotatably connected to both ends of the connecting shaft (206), and a rotating piece (4) is fixedly connected to the center of the outer surface of the connecting shaft (206).

3. The operating mechanism of a load switch according to claim 1, characterized in that: The inner bottom wall of the fixing box (202) is provided with fixing grooves at both ends, and the inner wall of the fixing groove is fixedly connected with a mating piece (5).

4. The operating mechanism of a load switch according to claim 1, characterized in that: The inner bottom wall edge of the fixing box (202) is provided with a docking groove, and the inner wall of the docking groove is engaged with the bottom of the docking block (201).

5. The operating mechanism of a load switch according to claim 1, characterized in that: The inner wall of the spring A (108) is provided with a telescopic rod A (6), one end of which is fixedly connected to the center of one end of the fixed plate (8).

6. The operating mechanism of a load switch according to claim 1, characterized in that: The inner wall of the spring B (109) is provided with a telescopic rod B (7), one end of which is fixedly connected to the center of the back of the ball (110).

Images