A fall switch detector

By using a rotary table for multi-station parallel testing and an automated logistics system, the problems of low efficiency and switch damage in existing fall switch detectors have been solved, achieving efficient and low-cost switch testing.

CN224436392UActive Publication Date: 2026-06-30YUYAO KEYUAN ELECTRICAL APPLIANCES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUYAO KEYUAN ELECTRICAL APPLIANCES CO LTD
Filing Date
2025-07-14
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing fall switch detectors have low detection efficiency, can only test 1-2 switches at a time, occupy a large area, and are prone to damaging the switches during the detection process.

Method used

The rotary table processes four stations in parallel. The rigid synchronous drive of the clamping seat and the contact part enables parallel detection of multiple stations. Combined with the arc-shaped receiving cavity and rubber layer protection, the tension spring provides the reset tension and integrates an automated logistics system.

Benefits of technology

It significantly increases the detection volume per unit time, reduces the switch damage rate, reduces the equipment footprint, and lowers labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to a fall switch detector, which includes a rotary table and a detection station mounted on the rotary table. The rotary table has an inlet and an outlet, and multiple rotating disks are arranged in a circumferential array on the rotary table. Multiple clamping seats are rotatably connected to the rotating disks, and the rotation range of the clamping seats is greater than 90°. Each clamping seat has an abutment on its opposite side, and the abutment is used to contact the fall switch placed in the rotating disk. When the abutment rotates, it drives the clamping seat to rotate synchronously, and the rotation angle of the clamping seat is the same as the rotation angle of the abutment. This application has a rotary table that can process four stations in parallel, which is an order of magnitude improvement. But more importantly, the adjacent design of the detection port and the outlet reduces the idle stroke, just like the optimization effect of the "U-shaped layout" of the assembly line.
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Description

Technical Field

[0001] This application relates to the field of switch detectors, and more particularly to a fall switch detector. Background Technology

[0002] Currently, drop-out switches are a type of short-circuit protection switch. They are economical, easy to operate, and highly adaptable to outdoor environments, and are widely used on one side of 10kV / 12kV distribution lines and distribution transformers for protection and equipment switching operations.

[0003] With the rapid development of modern technology and information, electronic switches are being used more and more. Existing switch life detectors use cylinders for testing. These switch life testing machines are completed by the action of the cylinder. The lifespan of the switch is tested as the pressure of the cylinder changes.

[0004] The aforementioned technologies also have the following drawbacks: when testing fall switches, linear testing lines can only test 1-2 switches at a time, resulting in low efficiency. Furthermore, each linear testing line requires both a testing port and a discharge port, leading to excessive floor space. Utility Model Content

[0005] To improve the speed of fall switch detection, the rotary table can process four stations in parallel, which is an order of magnitude improvement. This application provides a fall switch detector.

[0006] This application provides a fall switch detector, which adopts the following technical solution:

[0007] A fall switch detector includes a rotating platform and a detection platform mounted on the rotating platform. The rotating platform has an inlet and an outlet, and multiple rotating disks are arranged in a circumferential array on the rotating platform. Multiple clamping seats are rotatably connected to the rotating disks, and the rotation range of the clamping seats is greater than 90°. Each clamping seat has an abutment on its opposite side, and the abutment is used to contact the fall switch placed in the rotating disk. When the abutment rotates, it drives the clamping seat to rotate synchronously, and the rotation angle of the clamping seat is the same as the rotation angle of the abutment.

[0008] By adopting the above technical solution, the rigid synchronous drive (with the same rotation angle) between the contact component and the clamping seat ensures that there is no relative slippage during the flipping process of the fall switch, eliminating test errors. The circumferential array flipping disk realizes multi-station parallel detection, significantly improving the processing capacity per unit time.

[0009] Optionally, the clamping seat is provided with an arc-shaped receiving cavity for accommodating the fall switch.

[0010] By adopting the above technical solution, the arc-shaped receiving cavity accurately matches the shape of the cylindrical switch, preventing the switch from rolling off during testing, increasing the contact area, reducing the pressure on the switch surface, and avoiding shell deformation.

[0011] Optionally, the abutment has an integrally formed protrusion at one end facing the clamping seat; the number of protrusions corresponds to the number of clamping seats, and a rubber layer is fixedly provided on the surface of the protrusion facing the clamping seat.

[0012] By adopting the above technical solution, the one-piece molded protrusion enhances the structural rigidity, eliminates drive deformation, the rubber layer provides buffer protection, and the scratch rate on the switch surface is significantly reduced.

[0013] Optionally, a tension spring is connected between the opposing clamping seats; the end of the tension spring is provided with a hook; the hook is detachably connected to the clamping seat.

[0014] By adopting the above technical solution, the tension spring provides constant reset tension, ensuring that the clamping seat returns to its position quickly, and the detachable hook block structure enables quick spring replacement, significantly improving maintenance efficiency.

[0015] Optionally, the rotary table is provided with adjacent detection ports and discharge ports in the circumferential direction; the rotary table rotates around its central axis for one revolution, so that the detection port moves to the position of the discharge port.

[0016] By adopting the above technical solution, the fall switch passes through multiple adjacent clamps to achieve the effect of multiple tests, ensuring the accuracy of the fall switch.

[0017] Optionally, both the inlet and outlet are equipped with hooks and a conveyor belt, and the number of hooks is the same as the number of clamping seats.

[0018] By adopting the above technical solution, the number of hook parts and clamping seats are matched, and the integration of the entire row of switches for synchronous loading and unloading conveyor belts enables the entire process of feeding, detection and sorting to be automated, reducing manual intervention.

[0019] In summary, this solution achieves its goals through three innovations: a rotary table circumferential workstation layout, a rigid synchronization mechanism between the clamping seat and the contacting component, and an automated logistics system.

[0020] 1. Breakthrough in Precision: Small synchronous error in flipping angle and high accuracy in switch positioning ensure consistent drop posture. Boosted Efficiency: Parallel processing at multiple stations shortens the detection cycle and maximizes the hourly detection capacity of a single machine.

[0021] 2. Reliability assurance: The rubber protective layer and curved clamping reduce switch damage, and the modular spring structure extends the life of key components;

[0022] 3. Cost optimization: Reduced equipment footprint and lower labor costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the switch detector in the embodiments of this application.

[0024] Figure 2 This is a schematic diagram of the structure of another station of the switch detector in the embodiments of this application.

[0025] Figure 3 This is a schematic diagram of the structure of the contacting element in the embodiments of this application.

[0026] Figure 4 This is a schematic diagram of the mechanism highlighting another station of the contacting component in the embodiments of this application.

[0027] Reference numerals: 1. Rotary table; 2. Feed inlet; 3. Discharge outlet; 4. Tilting plate; 5. Clamping seat; 6. Abutting component; 7. Receiving cavity; 8. Protrusion; 9. Rubber layer; 10. Tension spring; 11. Hook block; 12. Hook claw component; 13. Conveyor belt. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] This application discloses a fall switch detector. (Refer to...) Figure 1 , Figure 2 A fall switch detector includes a disc-shaped rotating stage 1 that rotates about a central axis and a detection stage fixed above it. The fall switch is placed on the detection stage for detection.

[0030] Reference Figure 1 , Figure 2 Four rotating discs 4 are equidistantly installed around the perimeter of the rotating table 1. Each disc has an adjacent feed inlet 2, a first detection port, a second detection port, and a discharge port 3 on its sidewall. Each complete rotation of the rotating table 1 results in the rotating disc 4 at the feed inlet 2 entering the rotating disc 4 at the discharge port 3 and eventually returning to its initial position. Each rotating disc 4 is fixedly equipped with a rotatable clamping seat 5. Each clamping seat 5 has an arc-shaped receiving cavity 7 on its inner side that matches the shape of a cylindrical drop switch. The two are connected by a tension spring 10—the hook 11 at the end of the spring is detachably engaged with a slot on the sidewall of the clamping seat 5, allowing the clamping seat 5 to rotate 120°.

[0031] Reference Figure 3 , Figure 4On the opposite side of the clamping seat 5, a columnar contact member 6 is provided with one end facing the clamping seat 5. An integrally formed protrusion 8, equal in number to the clamping seat 5, is formed on the contact surface of the protrusion 8. The contact surface of the protrusion 8 is covered with a scratch-resistant rubber layer 9. When the detection table drive mechanism presses down on the contact member 6, the protrusion 8 abuts against the trigger switch, forcing the clamping seat 5 to rotate synchronously by the same angle (e.g., 100°). At this time, the tension spring 10 provides the reset tension.

[0032] In the feeding process: the feed inlet 2 and conveyor belt 13 transport the drop switch to four sets of hooks 12 (the number strictly corresponds to the clamping seat 5), where the hooks 12 are precisely embedded into the arc-shaped receiving cavity 7 of the clamping seat 5; when the rotary table 1 rotates the switch to the testing port, the contact element 6 is driven to actuate, realizing the switch drop performance test; finally, qualified products are transferred to the conveyor belt 13 through the discharge port 3 hooks 12, and defective products are manually removed. This design ensures the flipping accuracy through the rigid linkage between the contact element 6 and the clamping seat 5, the rubber protective layer avoids damage to the switch, and the circumferential rotation layout improves the testing efficiency.

[0033] This application discloses the implementation principle of a fall switch detector as follows: The working process of this fall switch detector begins at the feed inlet 2: When the conveyor belt 13 transports the cylindrical fall switch to the positioning station, four sets of pneumatic hooks that are strictly matched in number with the clamping seats 5 press down synchronously, accurately embedding the switch into the arc-shaped receiving cavity 7 of the clamping seat 5 on the flip plate 4; then the rotary table 1 rotates counterclockwise, carrying the switch from the feed inlet 2 to the detection port adjacent to the discharge outlet 3, and the servo braking system locks the station. At this time, the cylinder of the testing platform presses down the contact member 6, and the protrusion 8 with rubber layer 9 at one end abuts the trigger switch, forcing the clamping seat 5 to rotate synchronously. At the same time, the movement trajectory of the ball inside the switch is detected to determine whether the drop response is within the threshold. Meanwhile, the tension spring 10 connecting the relative clamping seats 5 accumulates tension in preparation for reset. After the test is completed, the rotary table 1 continues to rotate, so that the testing port station is accurately moved to the discharge port 3. Qualified products are transferred by the hook to the discharge conveyor belt 13, and defective products trigger the sound and light alarm and are manually removed. At the same time, the tension spring 10 releases energy to pull the clamping seat 5 to zero, and the feeding port 2 station has been opened simultaneously to feed the next batch of materials. This cycle repeats itself.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A fall switch detector, characterized in that: The device includes a rotating table (1) and a testing table mounted on the rotating table (1). The rotating table (1) is provided with a feed inlet (2) and a discharge outlet (3). The rotating table (1) is circumferentially arrayed with multiple rotating disks (4). Multiple clamping seats (5) are rotatably connected to the rotating disks (4). The rotation range of the clamping seats (5) is greater than 90°. Each clamping seat (5) is provided with an abutment (6) on its opposite side. The abutment (6) is used to contact the fall-off switch placed in the rotating disk (4). When the abutment (6) rotates, it drives the clamping seat (5) to rotate synchronously. The rotation angle of the clamping seat (5) is the same as the rotation angle of the abutment (6).

2. The fall switch detector according to claim 1, characterized in that: The clamping seat (5) is provided with an arc-shaped receiving cavity (7) for accommodating the fall switch.

3. A fall switch detector according to claim 2, characterized in that: The contact member (6) has an integrally formed protrusion (8) at one end facing the clamping seat (5); the number of protrusions (8) corresponds to the number of clamping seats (5), and a rubber layer (9) is fixedly provided on the surface of the protrusions (8) facing the clamping seat (5).

4. A fall switch detector according to claim 3, characterized in that: A tension spring (10) is connected between the clamping seats (5) arranged opposite to each other; the end of the tension spring (10) is provided with a hook (11); the hook (11) is detachably connected to the clamping seat (5).

5. A fall switch detector according to claim 1, characterized in that: The rotating table (1) is provided with a feed inlet (2), an adjacent detection port and a discharge port (3) in sequence around its circumference; the rotating table (1) rotates around its central axis for one revolution, so that the clamping seat (5) of the feed inlet (2) finally passes through the discharge port (3) and finally returns to the initial position.

6. A fall switch detector according to claim 1, characterized in that: Both the feed inlet (2) and the discharge outlet (3) are equipped with hooks (12) and conveyor belts (13), and the number of hooks (12) is the same as the number of clamps (5).