A relay protection verification device

Abstract

This invention relates to the field of relay protection verification device technology, aiming to solve the problem of inconvenience in climbing stairs in existing relay protection verification devices. The invention provides a relay protection verification device with a stair-climbing mechanism at the bottom of the frame. The stair-climbing mechanism includes a connecting frame, on which a first crawler unit and a second motor are connected for transmission. Side frames are rotatably connected to both ends of the connecting frame. A third crawler wheel in each side frame is coaxially arranged with the corresponding crawler wheel of the connecting frame and fitted with a spindle. The second crawler unit is located on the side frame. The connecting frame also includes a third motor and a transmission shaft. The third motor drives the spindle to rotate, and the transmission shaft is positioned between the two spindles to allow the side frame to rotate. This invention enables automated stair climbing. For example, when stair climbing is required, the crawler of the stair-climbing mechanism rotates. When the crawler contacts the stairs, the rotating crawler drives the device to move, thus achieving stair climbing. This eliminates the need for strenuous work by personnel and is less likely to damage the relay protection verification device and related equipment.

Description

Technical Field

[0001] This invention relates to the field of relay protection verification device technology, and in particular to a relay protection verification device. Background Technology

[0002] The existing relay protection verification device is very inconvenient to climb stairs. It requires manual lowering of the tracks of the existing tracked auxiliary stair climber and manual operation to tilt the support body. Then, the relay protection verification device is dragged up the stairs. The manual dragging method is time-consuming and laborious. In addition, the tilted support body is prone to bumps, which can easily cause damage to the related equipment and loosening of connections.

[0003] Existing relay protection verification devices are all independent units that generally require manual handling. The more powerful the relay protection verification device, the more components it often has, and the heavier it is, making it even more inconvenient to move.

[0004] Providing relay protection calibration devices on different floors of the factory would increase costs. Moving these devices to the appropriate floor only when needed would also be labor-intensive. Since the factory's freight elevators are frequently used for transporting goods and materials, they cannot transport the relay protection calibration devices promptly. Therefore, designing a stair-climbing transport mechanism for the relay protection calibration devices would facilitate safe and convenient transport to the designated floor via stairs. Summary of the Invention

[0005] The purpose of this invention is to provide a relay protection verification device that solves the problem of inconvenience in climbing stairs for existing relay protection verification devices.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A relay protection verification device includes a frame with a climbing mechanism at the bottom. The climbing mechanism includes a connecting frame, on which a crawler unit and a motor are connected for transmission. Side frames are rotatably connected to both ends of the connecting frame. A crawler wheel in each side frame is coaxially arranged with the corresponding crawler wheel of the connecting frame and fitted with a spindle. The side frame has a crawler unit. The connecting frame also has a motor and a transmission shaft. The motor drives the spindle to rotate, and the transmission shaft is located between the two spindles to allow the side frames to rotate.

[0008] In some embodiments, the track unit one has a track wheel one and a track wheel two, with a track wheel three in one side frame coaxially arranged with the track wheel, and a track wheel three in another side frame coaxially arranged with the track wheel two. Since track wheel one and track wheel two are coaxially arranged with track wheel three respectively, track wheel one, track wheel two, and track wheel three all rotate under the drive of motor two, enabling motor two to drive track unit one to rotate.

[0009] In some embodiments, the second motor and the first track unit are connected by a power coupling. This power coupling allows the first track unit to operate smoothly under the drive of the second motor.

[0010] In some embodiments, the movement direction of the track unit one is perpendicular to the hinge axis formed at the hinge joint between the connecting frame and the frame body, and the centerline of the hinge axis is parallel to the distance direction between the two climbing mechanisms. Alternatively, the track unit one can move in a direction perpendicular to the hinge axis at the hinge joint between the connecting frame and the frame body.

[0011] In some embodiments, the transmission shaft is connected to one of the spindles via a power transmission component one, and the transmission shaft is connected to the other spindle via a power transmission component two. The spindle can transmit power to other components via the transmission shaft, for example, to the two spindles, so as to drive the two side frames to rotate via the two spindles.

[0012] In some embodiments, the side frame is provided with rollers parallel to the track wheels. This facilitates movement of the device on flat ground via the rollers.

[0013] In some embodiments, the rollers are arranged such that their lowest point is lower than the height of the lower end face of the side frame, and their highest point is lower than the height of the upper end face of the side frame. Before the side frame is flipped, the rollers can contact the ground to enable movement of the device on flat ground. After the side frame is flipped, the rollers are prevented from contacting the ground, reducing the impact of the rollers on the track unit.

[0014] In some embodiments, an angle adjustment component is provided between the frame and the stair-climbing mechanism. The angle adjustment component includes an outer sleeve column, an inner sleeve rod, a lead screw, and a motor. The inner sleeve rod is fitted inside the outer sleeve column, with one end extending out and rotatably connected to the connecting frame. The lead screw is installed inside the inner sleeve rod and is drively connected to the motor. The angle of the frame can be adjusted using the outer sleeve column, inner sleeve rod, lead screw, and motor.

[0015] In some embodiments, a level sensor is provided on the frame to monitor the horizontal tilt angle of the frame. Detecting the horizontal tilt angle using the level sensor facilitates adjustments based on the detected tilt angle, preventing the frame from tilting relative to the horizontal plane.

[0016] In some embodiments, the relay protection verification device further includes a testing component arranged within the frame. Relay protection verification can be performed using the testing component.

[0017] Compared with the prior art, the relay protection verification device provided by the present invention has the following advantages:

[0018] The relay protection verification device provided by this invention can achieve automated stair climbing. For example, when stair climbing is required, the track of the stair climbing mechanism rotates. When the track contacts the stairs, the rotating track will drive the device to move to achieve stair climbing. This does not require the staff to exert effort and is less likely to damage the relay protection verification device and its related equipment.

[0019] The relay protection verification device provided by this invention is easy to move when working on flat ground; when climbing stairs, the contact with the stair steps and the ascent are all automated, making it easy and effortless.

[0020] Furthermore, the relay protection verification device provided by this invention maintains a vertical frame when climbing stairs, which can reduce the impact of stair climbing bumps on the equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the technical description will be briefly introduced below.

[0022] Figure 1 This is a schematic diagram of the structure of the relay protection verification device provided by the present invention, wherein the device is located on flat ground;

[0023] Figure 2 This is a schematic diagram of the relay protection verification device provided by the present invention when switching to the climbing state;

[0024] Figure 3 This is a schematic diagram of the relay protection verification device provided by the present invention in the climbing state;

[0025] Figure 4 A schematic diagram of the frame and stair-climbing mechanism provided by the present invention;

[0026] Figure 5 A schematic diagram of the angle adjustment component and the stair-climbing component provided by the present invention;

[0027] Figure 6 An exploded view of the angle adjustment component provided by the present invention;

[0028] Figure 7 A cross-sectional view of the stair-climbing component provided by the present invention;

[0029] Figure 8 A cross-sectional view of track wheel one, track wheel two, track wheel three and motor two provided by the present invention;

[0030] Figure 9 This is a cross-sectional view of the spindle and motor three provided by the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100. Frame; 200. Test component; 300. Climbing mechanism; 301. Angle adjustment component; 3011. Outer sleeve column; 3012. Inner sleeve rod; 3013. Lead screw; 3014. Motor 1; 302. Climbing component; 3021. Connecting frame; 3022. Track unit 1; 3022a. Track wheel 1; 3022b. Track wheel 2; 3023. Side frame; 3024. Track unit 2; 3024a. Track wheel 3; 3025. Roller; 303. Motor 2; 304. Motor 3; 305. Power connection component; 306. Spindle; 307. Transmission shaft; 308. Power transmission component 1; 309. Power transmission component 2. Detailed Implementation

[0033] The following detailed description provides further details on specific implementation methods.

[0034] like Figures 1 to 9 As shown, this invention provides a relay protection verification device, including a frame 100, a testing component 200, and a climbing mechanism 300. The testing component 200 utilizes existing relay protection testing technology and related equipment, and is arranged within the space of the upper half of the frame 100. The climbing mechanism 300 is located at the bottom of the frame 100 and has two switching states: a flat ground state and a climbing state. The climbing mechanism 300 is powered by a battery.

[0035] As one feasible approach, a stair-climbing mechanism 300 is provided on each side of the frame 100. The stair-climbing mechanism 300 includes an angle adjustment component 301 and a stair-climbing component 302.

[0036] like Figures 4 to 6 As shown, the angle adjustment component 301 includes an outer sleeve column 3011, an inner sleeve rod 3012, a lead screw 3013, and a motor 3014. The stair-climbing component 302 includes a connecting frame 3021, a track unit 3022, a side frame 3023, and a track unit 3024.

[0037] The outer sleeve post 3011 is rotatably connected to the frame 100, for example, by hinge. The inner sleeve rod 3012 is fitted inside the outer sleeve post 3011 and can extend and retract within the outer sleeve post 3011. The inner sleeve rod 3012 is hollow inside, with one end extending out of the outer sleeve post 3011 and the end rotatably connected to the connecting frame 3021 (for example, by hinge). A lead screw 3013 is installed inside the inner sleeve rod 3012, for example, by thread, and the inner sleeve rod 3012 has an internal thread adapted to the lead screw 3013. The input end of the lead screw 3013 is connected to a motor 3014 for transmission. The motor 3014 drives the lead screw 3013 to rotate, thereby causing the inner sleeve rod 3012 to extend or retract within the outer sleeve post 3011, thus changing the horizontal tilt angle of the frame 100.

[0038] Preferably, a horizontal sensor is installed on the frame 100. During stair climbing, the horizontal tilt angle of the frame 100 is monitored by the horizontal sensor. Based on the monitoring result, the frame 100 is adjusted by the angle adjustment component 301 to keep the frame 100 approximately vertical. The adjustment process is as follows: the motor 3014 drives the lead screw 3013 to rotate, thereby causing the inner sleeve rod 3012 to extend or retract into the outer sleeve column 3011, thus changing the horizontal tilt angle of the frame 100. By monitoring the horizontal tilt angle of the frame 100 with the horizontal sensor and cooperating with the angle adjustment component 301, the frame 100 is kept approximately vertical. This invention keeps the frame 100 vertical, that is, keeps the test component horizontal, which can prevent the test component from shifting due to tilting, or even colliding or slipping to the ground. In addition, since the test component is connected to the frame, it can also prevent the test component from increasing the force on the connection due to tilting, which is beneficial to maintaining the service life of the connection.

[0039] like Figure 4 and Figure 5 As shown, the connecting frame 3021 is hinged to the frame 100. For example, a connecting part is provided on the outer top of the frame 100, which is hinged to the frame 100. A track unit 3022 is provided on the connecting frame 3021. The track unit 3022 uses existing track technology, and its direction of movement is perpendicular to the hinge axis formed at the hinge point between the connecting frame 3021 and the frame 100. The axis of the hinge axis formed at the hinge point between the connecting frame 3021 and the frame 100 is also parallel to the distance between the two sets of climbing mechanisms 300. A side frame 3023 is hinged to each end of the connecting frame 3021. A second track unit 3024 is installed on the side frame 3023. When the climbing mechanism 300 is in a flat state, the direction of movement of the second track unit 3024 is parallel to the direction of movement of the first track unit 3022, and the second track units 3024 on the two side frames 3023 are arranged facing each other.

[0040] like Figures 7 to 9 As shown, the two track wheels in track unit 1 3022 are track wheel 3022a and track wheel 3022b. Track unit 2 3024 also includes two track wheels, with the track wheel at the input end named track wheel 3024a. Track wheel 3022a is coaxially connected to track wheel 3024a in one set of track unit 2 3024, and track wheel 3022b is coaxially connected to track wheel 3024a in another set of track unit 2 3024. Motor 2 303 is mounted on the connecting frame 3021, and motor 2 303 is connected to track unit 1 3022 via a power connector 305.

[0041] Track roller 1 3022a, track roller 2 3022b, and track roller 3024a are all hollow inside. A mandrel 306 is fitted between the interior of track roller 1 3022a and its corresponding interior of track roller 3024a, and between the interior of track roller 2 3022b and its corresponding interior of track roller 3024a. One end of the mandrel 306 is connected to the side frame 3023, enabling a hinge connection between the side frame 3023 and the connecting frame 3021. The mandrel 306 acts as the hinge shaft. Furthermore, when motor 2 303 drives track unit 1 3022, the two track rollers of track unit 1 3022 respectively drive two sets of track units 2 3024, and the movement directions of track unit 1 3022 and track unit 2 3024 are the same. The track wheels are a transmission mechanism used to transmit the movement of track unit 3022 to the two sets of track units 3024. For example, when motor 303 drives track unit 3022, the movement of track unit 3022 drives the two track wheels to rotate, thereby driving the two sets of track units 3024 to move, and ensuring that the movement directions of track unit 3022 and track unit 3024 are the same. Motor 303 directly drives track unit 3022 and also drives track unit 3024 through track wheel transmission.

[0042] Track wheel 3022a and track wheel 3022b in track unit 3022 are coaxially connected to track wheel 3024a corresponding to track units 3024. Motor 303 drives track unit 3022 to move through power connector 305, so the two track units 3024 move synchronously, in the same direction and at the same speed.

[0043] A motor 304 and a transmission shaft 307 are mounted on the connecting frame 3021. The transmission shaft 307 is parallel to the direction of movement of the track unit 3022. The motor 304 is powered by a spindle 306. The transmission shaft 307 is powered by a power transmission component 308 and another spindle 306. The transmission shaft 307 is powered by a power transmission component 309. The operation of the motor 304 drives the two spindles 306 to rotate, which in turn drives the two side frames 3023 to rotate around the spindles 306. The side frames 3023 and the spindles 306 rotate synchronously. One end of the spindle 306 is connected to the side frame 3023. The outer end of the spindle 306 and the side frame 3023 can be fixedly connected or detachably connected, such as by bolts or snap-fit ​​connections.

[0044] A spindle 306 is installed between track roller 1 3022a and track roller 3024a, and between track roller 2 3022b and track roller 3024a. The motor 304 cooperates with the transmission shaft 307, power transmission component 1 308, and power transmission component 2 309 to drive the two spindles 306 to rotate counterclockwise by 180 degrees. This allows the track unit 2 3024, which is closest to the stair step, to come into contact with the step. Under the reaction force, the frame 100 is supported, completing the preparation work for climbing the stairs. Then, the climbing action can be carried out.

[0045] Preferably, the side frame 3023 is provided with rollers 3025 parallel to the track wheel 3022a. When the stair climbing mechanism 300 is in a flat state, the rollers 3025 are arranged such that the lowest point of their height is lower than the lower end face of the side frame 3023, and the rollers 3025 are in contact with the ground, that is, the rollers 3025 are on the ground. The device is supported by the four rollers 3025, and the device can be moved by rolling.

[0046] Furthermore, with Figure 2 , Figure 3 and Figure 5 Taking the side frame 3023 shown as an example, Figure 5 This shows the state of the side frame 3023 before it flips around the spindle 306. Figure 2 This demonstrates the state of the side frame 3023 when it flips around the spindle 306. Figure 3 The demonstration shows the state of the side frame 3023 after it flips around the spindle 306. Since the highest point of the roller 3025 is lower than the height of the upper surface of the side frame 3023, when the side frame 3023 flips around the spindle 306, the roller 3025 does not come into contact with the steps of the stairs, so as not to affect the climbing action. During the process of the side frame 3023 flipping 180 degrees counterclockwise around the spindle 306, the track unit 2 3024 near the steps of the stairs will come into contact with the steps. Under the reaction force, the frame 100 is supported. At the same time, the horizontal tilt angle of the frame 100 is monitored by the horizontal sensor, and the horizontal tilt angle of the frame 100 is adjusted by the angle adjustment component 301 to keep the frame 100 roughly vertical, so as to prevent the test component 200 from tilting due to the tilt of the frame 100.

[0047] During the subsequent stair-climbing process, situations may arise that damage the relevant electronic components of the test component 200 or loosen the circuit connections. Then, motor 2 303 drives track unit 1 3022 and track unit 2 3024 to move together, thus achieving the stair-climbing action. After the stair-climbing is completed, motor 304 drives the rear side frame 3023 to rotate 180 degrees clockwise (i.e., in the opposite direction) around the spindle 306, and the stair-climbing mechanism 300 is readjusted to a flat ground state. It should be noted that the rotation direction of the front side frame 3023 is opposite to that of the rear side frame 3023.

[0048] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A relay protection verification device, comprising a frame (100), characterized in that, The bottom of the frame (100) is provided with a climbing mechanism (300), which includes a connecting frame (3021). The connecting frame (3021) is provided with a crawler unit (3022) and a motor (303) that are connected by transmission. Side frames (3023) are rotatably connected to both ends of the connecting frame (3021). The crawler wheel (3024a) in each side frame (3023) is coaxially arranged and sleeved with the corresponding crawler wheel of the connecting frame (3021). The side frame (3023) is provided with a spindle (306) and a second track unit (3024). The connecting frame (3021) is also provided with a third motor (304) and a transmission shaft (307). The third motor (304) drives the spindle (306) to rotate. The transmission shaft (307) is arranged between the two spindles (306) to make the side frame (3023) flip. The flipping direction of the front side frame (3023) is opposite to that of the rear side frame (3023). An angle adjustment component (301) is provided between the frame (100) and the stair climbing mechanism (300). The angle adjustment component (301) includes an outer sleeve column (3011), an inner sleeve rod (3012), a lead screw (3013), and a motor (3014). The inner sleeve rod (3012) is sleeved inside the outer sleeve column (3011) and one end extends out and is rotatably connected to the connecting frame (3021). The lead screw (3013) is installed inside the inner sleeve rod (3012), and the lead screw (3013) is connected to the motor (3014) in a transmission connection. A horizontal sensor is installed on the frame (100) to monitor the horizontal tilt angle of the frame (100). Based on the monitoring results, the frame (100) is adjusted by the angle adjustment component (301) so that the frame (100) is kept roughly vertical. The relay protection verification device also includes a test component (200), which is arranged inside the frame (100).

2. The relay protection verification device according to claim 1, characterized in that, The track unit 1 (3022) has track wheel 1 (3022a) and track wheel 2 (3022b), and track wheel 3 (3024a) in one of the side frames (3023) is coaxially arranged with track wheel 1 (3022a), and track wheel 3 (3024a) in the other side frame (3023) is coaxially arranged with track wheel 2 (3022b).

3. The relay protection verification device according to claim 1, characterized in that, The second motor (303) and the first track unit (3022) are connected by a power connector (305).

4. The relay protection verification device according to claim 1, characterized in that, The movement direction of the track unit (3022) is perpendicular to the hinge axis formed at the hinge joint between the connecting frame (3021) and the frame (100), and the axis of the hinge axis is parallel to the distance direction between the two climbing mechanisms (300).

5. The relay protection verification device according to claim 1, characterized in that, The transmission shaft (307) is connected to one of the spindles (306) via a power transmission component one (308), and the transmission shaft (307) is connected to another of the spindles (306) via a power transmission component two (309).

6. The relay protection verification device according to claim 1, characterized in that, The side frame (3023) is provided with rollers (3025) parallel to the track wheels.

7. The relay protection verification device according to claim 6, characterized in that, The roller (3025) is arranged such that its lowest point is lower than the height of the lower end face of the side frame (3023) and its highest point is lower than the height of the upper end face of the side frame (3023).

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