Relay aging detection device

Abstract

The utility model relates to the technical field of relay detection, in particular to a relay aging detection device, which comprises a detection frame and a relay detector, and the relay detector is mounted at the inner top end of the detection frame. A circuit board is arranged below the relay detector, a main spring cable is connected between the relay detector and the circuit board, a plurality of protective sleeves are connected to the lower end of the circuit board, probes are arranged at the lower ends of the protective sleeves, and auxiliary spring cables connected between the probes and the circuit board are arranged in the protective sleeves; according to the utility model, aging detection can be carried out on relays of various specifications, the application range of the detection device is effectively improved, and the idle probe is accommodated in the protective sleeve, so that dust adhered to the surface of the probe can be reduced, the interference of the dust on the probe can be reduced, and the normal use performance of the probe can be effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of relay detection, in particular to a relay aging detection device. Background Art

[0002] A relay, also known as an electric relay, is an electronic control device. It has a control system (also known as an input circuit) and a controlled system (also known as an output circuit), and is usually applied to an automatic control circuit. It is actually an "automatic switch" that uses a smaller current to control a larger current, and relays are available in specifications such as 4 pins, 5 pins, 6 pins, 8 pins, and 10 pins.

[0003] Referring to the Chinese patent authorization announcement number CN221007802U, which discloses a relay detection device belonging to the technical field of relay production equipment. It includes a base, on which a bracket is fixedly connected. A driving cylinder is fixedly connected to the bracket, and the telescopic end of the driving cylinder moves vertically downward. An installation plate is fixedly connected to the telescopic end of the driving cylinder, and a plurality of probes are evenly installed on the installation plate at intervals along the length direction of the installation plate. A fixing mechanism for placing the relay is provided on the base. This utility model has the advantages of facilitating the operator to detect the relay and improving the detection efficiency of the operator for the relay.

[0004] By referring to the above comparative documents, it can be seen that the prior art still has the following deficiencies. When detecting the aging degree of a relay through a probe, since the number of probes used is fixed and inconvenient, only relays of the same specification can be detected. However, the number of pins of different specification relays is different. If the number of probes of the detection device cannot be changed, different specification relays cannot be detected by this detection device, resulting in a limited application range of the existing detection device. Moreover, after the probes are used, they are exposed externally for a long time, and the probes are prone to sticking dust for a long time, thus affecting the normal use performance of the probes. Summary of the Utility Model

[0005] The utility model provides a relay aging detection device, which is conducive to aging detection of different specification relays and is conducive to dust-proof protection of idle probes.

[0006] To solve the problems of the prior art, the utility model discloses a relay aging detection device, which includes a detection frame and a relay detector, and the relay detector is installed at the inner top end of the detection frame.

[0007] A circuit board is provided below the relay detector, and a main spring cable is connected between the relay detector and the circuit board. A plurality of protective sleeves are connected to the lower end of the circuit board. Probes are provided at the lower ends of the protective sleeves. Auxiliary spring cables connected between the probes and the circuit board are provided inside the protective sleeves. Insulating blocks are fixed on both the left and right sides of the probes. Pull rods are fixed to the upper ends of the insulating blocks, and the pull rods all slide upward through the upper surface of the circuit board.

[0008] Further, a concave detection table is fixed to the inner bottom end of the detection frame, and clamping plates are provided at both the left and right ends inside the concave detection table.

[0009] Further, push rods are fixed to the outer sides of the clamping plates, and the push rods all slide outward through the concave detection table, and push plates are fixed to the outer ends of the push rods. A bidirectional lead screw is threaded through between the two push plates, and the bidirectional lead screw rotates through the concave detection table from left to right.

[0010] Further, an electric cylinder is fixed to the inner top end of the detection frame, and a concave frame is connected to the power end of the electric cylinder, and the lower end of the concave frame is fixed to the upper end of the circuit board.

[0011] Further, pull rings are fixed between the upper ends of adjacent two pull rods.

[0012] Further, lower spring telescopic rods are fixed to both the left and right sides of the lower end of the inner wall of the protective sleeve, lower clamping blocks are connected to the ends of the lower spring telescopic rods, clamping grooves matching the lower clamping blocks are formed on the outer sides of the insulating blocks, and the lower clamping blocks are arc-shaped.

[0013] Further, upper spring telescopic rods are fixed to both the left and right sides of the upper end of the inner wall of the protective sleeve, upper clamping blocks are connected to the ends of the upper spring telescopic rods, the upper clamping blocks are matched with the clamping grooves, and the upper clamping blocks are arc-shaped.

[0014] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0015] 1. By providing multiple probes, when aging detection is performed on a relay of a corresponding specification, the probes can be adjusted to the corresponding number of used ones according to the number of relay pins. Therefore, the redundant probes can be stored in the protective sleeves, and then the exposed probes are aligned with the pins on the relay one by one. Therefore, it is beneficial to perform aging detection on relays of various specifications, and effectively improves the applicable range of the detection device;

[0016] 2. By storing the idle probes in the protective sleeves, it is beneficial to reduce the adhesion of dust on the surfaces of the probes, thereby reducing the interference of dust on the probes and effectively ensuring the normal use performance of the probes. Description of the Drawings

[0017] Figure 1Schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 Schematic diagram of the internal structure below the circuit board of the present utility model;

[0019] Figure 3 Schematic diagram of the enlarged partial structure A of the present utility model;

[0020] Figure 4 Schematic diagram of the internal structure of the protective cover of the present utility model;

[0021] Figure 5 Schematic diagram of the overall detection working structure of the present utility model;

[0022] Figure 6 Schematic diagram of the probe quantity adjustment structure of the present utility model;

[0023] Figure 7 Schematic diagram of the enlarged partial structure B of the present utility model.

[0024] Figure 1-7 Among them: detection rack 1, concave detection table 2, bidirectional lead screw 3, push plate 4, push rod 5, clamping plate 6, relay detector 7, electric cylinder 8, concave rack 9, circuit board 10, main spring cable 11, protective cover 12, probe 13, pull rod 14, pull ring 15, insulating block 16, lower spring telescopic rod 17, lower clamping block 18, clamping groove 19, auxiliary spring cable 20, upper spring telescopic rod 21, upper clamping block 22. Specific implementation method

[0025] A relay aging detection device:

[0026] As Figure 1 , 5 shown, in this embodiment, it includes a detection rack 1 and a relay detector 7. The relay detector 7 is installed at the inner top end of the detection rack 1. At the inner bottom end of the detection rack 1, a concave detection table 2 is fixed. On both the left and right ends inside the concave detection table 2, clamping plates 6 are provided. On the outer sides of the clamping plates 6, push rods 5 are fixed. The push rods 5 all slide outwards through the concave detection table 2, and at the outer ends of the push rods 5, push plates 4 are fixed. A bidirectional lead screw 3 is threaded through between the two push plates 4, and the bidirectional lead screw 3 rotates through the concave detection table 2 from left to right.

[0027] When detecting whether the relay circuit is aged through this detection device, place the relay to be detected in the notch of the concave detection table 2, and then turn the bidirectional lead screw 3 to drive the push plates 4, push rods 5 and clamping plates 6 to move towards the direction close to the concave detection table 2 until the two clamping plates 6 clamp and fix the relay, preventing the relay from accidentally sliding during the detection process and ensuring the normal progress of the detection work.

[0028] AsFigure 5 As shown in the figure, in this embodiment, a circuit board 10 is provided below the relay detector 7, and a main spring cable 11 is connected between the relay detector 7 and the circuit board 10. A plurality of protective sleeves 12 are connected to the lower end of the circuit board 10, and probes 13 are provided at the lower ends of the protective sleeves 12. A secondary spring cable 20 connected between the probe 13 and the circuit board 10 is provided in each of the protective sleeves 12. An electric cylinder 8 is fixed to the inner top end of the detection frame 1, and a concave frame 9 is connected to the power end of the electric cylinder 8. The lower end of the concave frame 9 is fixed to the upper end of the circuit board 10.

[0029] After the relay is fixedly installed, the electric cylinder 8 extends to drive the concave frame 9, the circuit board 10, the protective sleeve 12 and the probe 13 to move downward. At the same time, the circuit board 10 will stretch the main spring cable 11 until the probe 13 contacts the pin on the relay. On the premise that the probe 13, the secondary spring cable 20, the circuit board 10, the main spring cable 11 and the relay detector 7 are set in series, the cooperation between the relay detector 7 and the probe 13 can conveniently detect whether the circuit in the relay is normal and conveniently detect the aging state of the relay.

[0030] As Figure 1-7 shown in the figure, in this embodiment, insulating blocks 16 are fixed on both the left and right sides of the probe 13. Pull rods 14 are fixed to the upper ends of the insulating blocks 16. The pull rods 14 all slide upward through the upper surface of the circuit board 10. A pull ring 15 is fixed between the upper ends of adjacent two pull rods 14. Lower spring telescopic rods 17 are fixed to the left and right sides of the lower end of the inner wall of the protective sleeve 12. Lower clamping blocks 18 are connected to the ends of the lower spring telescopic rods 17. Slots 19 matching the lower clamping blocks 18 are formed on the outer sides of the insulating blocks 16. The lower clamping blocks 18 are arc-shaped. Upper spring telescopic rods 21 are fixed to the left and right sides of the upper end of the inner wall of the protective sleeve 12. Upper clamping blocks 22 are connected to the ends of the upper spring telescopic rods 21. The upper clamping blocks 22 match the slots 19, and the upper clamping blocks 22 are arc-shaped.

[0031] When it is necessary to detect relays of other specifications, in order to make the number of probes 13 used correspond to the number of pins on the relay, the pull rod 14, the insulating block 16 and the idle probes 13 are pulled up by the pull ring 15. On the premise that the lower clamping block 18 is clamped into the lower clamping groove 19, at this time, the insulating block 16 will push the lower clamping block 18 outward along the arc surface of the lower clamping block 18, and the lower clamping block 18 will compress the lower spring telescopic rod 17 until the lower clamping block 18 moves out of the clamping groove 19. Then, the insulating block 16 will drive the idle probes 13 to be stored upward into the protective sleeve 12. During this process, the auxiliary spring cable 20 will contract, and the insulating block 16 will push the upper clamping block 22 outward along the arc surface of the upper clamping block 22, and the upper clamping block 22 will compress the upper spring telescopic rod 21 until the upper clamping block 22 aligns with the notch of the clamping groove 19. The resilience of the upper spring telescopic rod 21 will drive the upper clamping block 22 to be clamped into the clamping groove 19, thereby preventing the probes 13 from accidentally falling out of the protective sleeve 12 until the number of probes 13 used is adjusted to the position corresponding to the number of relay pins. Therefore, by adjusting the number of probes 13 used, it is beneficial to conduct aging detection on relays of various specifications, effectively improving the applicable range of the detection device.

[0032] As Figure 2-7 shown, in this embodiment, lower spring telescopic rods 17 are fixedly arranged on the left and right sides of the lower end of the inner wall of the protective sleeve 12. The lower ends of the lower spring telescopic rods 17 are connected to lower clamping blocks 18. Slots 19 matching the lower clamping blocks 18 are formed on the outer sides of the insulating block 16. The lower clamping blocks 18 are arc-shaped. Upper spring telescopic rods 21 are fixedly arranged on the left and right sides of the upper end of the inner wall of the protective sleeve 12. The upper ends of the upper spring telescopic rods 21 are connected to upper clamping blocks 22. The upper clamping blocks 22 match the clamping grooves 19, and the upper clamping blocks 22 are arc-shaped.

[0033] When the probes 13 in the protective sleeve 12 need to be used, the pull ring 15, the pull rod 14, the insulating block 16 and the probes 13 can be pushed downward. The upper clamping block 22 will compress the upper spring telescopic rod 21, and then the upper clamping block 22 will move out of the clamping groove 19. Then, the insulating block 16 will push the lower clamping block 18 outward along the arc surface of the lower clamping block 18, and the lower clamping block 18 will compress the lower spring telescopic rod 17. When the lower clamping block 18 aligns with the notch of the clamping groove 19, the resilience of the lower spring telescopic rod 17 will drive the lower clamping block 18 to be clamped into the clamping groove 19. Therefore, the probes 13 can be conveniently moved out of the protective sleeve 12 for use. In summary, by storing the probes 13 in the protective sleeve 12 or moving the probes 13 out of the protective sleeve 12, the number of probes 13 used can be conveniently adjusted.

[0034] As Figure 6 shown, in this embodiment, several protective sleeves 12 are connected to the lower end of the circuit board 10, and probes 13 are arranged at the lower ends of the protective sleeves 12.

[0035] When the probe 13 is received into the protective sleeve 12, the protective sleeve 12 blocks dust. When the probe 13 is idle, it is beneficial to reduce dust adhesion on the surface of the probe 13, thereby reducing the interference of dust on the probe 13 and effectively ensuring the normal use performance of the probe 13.

Claims

1. A relay aging detection device, comprising a detection frame (1) and a relay detector (7), the relay detector (7) is installed at the inner top end of the detection frame (1), and is characterized in that: A circuit board (10) is provided below the relay detector (7), and a main spring cable (11) is connected between the relay detector (7) and the circuit board (10). A plurality of protective sleeves (12) are connected to the lower end of the circuit board (10). Probes (13) are provided at the lower ends of the protective sleeves (12). Secondary spring cables (20) connected between the probes (13) and the circuit board (10) are provided inside the protective sleeves (12). Insulating blocks (16) are fixed on both the left and right sides of the probe (13), and pull rods (14) are fixed to the upper ends of the insulating blocks (16). The pull rods (14) all slide upward through the upper surface of the circuit board (10).

2. The relay aging detection device according to claim 1, characterized in that: A concave detection table (2) is fixed to the inner bottom end of the detection frame (1), and clamping plates (6) are provided at the left and right ends inside the concave detection table (2).

3. The aging detection device for a relay according to claim 2, characterized in that: Push rods (5) are fixed to the outer sides of the clamping plates (6). The push rods (5) all slide outward through the concave detection table (2), and push plates (4) are fixed to the outer ends of the push rods (5). A bidirectional lead screw (3) is threaded through between the two push plates (4). The bidirectional lead screw (3) rotates from left to right through the concave detection table (2).

4. A relay aging detection device according to claim 1, characterized in that: An electric cylinder (8) is fixed to the inner top end of the detection frame (1). The power end of the electric cylinder (8) is connected to a concave frame (9), and the lower end of the concave frame (9) is fixed to the upper end of the circuit board (10).

5. The aging detection device for a relay according to claim 1, wherein: Pull rings (15) are fixed between the upper ends of adjacent pull rods (14).

6. The aging detection device for a relay according to claim 1, characterized in that: Lower spring telescopic rods (17) are fixed to the left and right sides of the lower end of the inner wall of the protective sleeve (12). Lower clamping blocks (18) are connected to the ends of the lower spring telescopic rods (17). Slots (19) matching the lower clamping blocks (18) are formed on the outer sides of the insulating blocks (16). The lower clamping blocks (18) are arc-shaped.

7. The aging detection device for a relay according to claim 6, characterized in that: Upper spring telescopic rods (21) are fixed to the left and right sides of the upper end of the inner wall of the protective sleeve (12). Upper clamping blocks (22) are connected to the ends of the upper spring telescopic rods (21). The upper clamping blocks (22) match the slots (19), and the upper clamping blocks (22) are arc-shaped.

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