A shock absorbing device for a power distribution cabinet on a ship

Abstract

This utility model discloses a shock-absorbing device for a power distribution cabinet on a ship, including a base (1), a power distribution cabinet (2) mounted on the base (1), a rotating seat (3) inside the base (1), a cross shaft (4) inside the rotating seat (3), and buffers (5) connected to the power distribution cabinet (2) at both ends of the cross shaft (4). By using the cross shaft (4) and the buffers (5), the power distribution cabinet (2) is suspended, thereby reducing the impact of ship swaying on the power distribution cabinet (2), reducing the collision between the power distribution cabinet (2) and the base (1), and effectively reducing the vibration and impact transmitted to the power distribution cabinet (2) during ship operation. The grounding terminal is not easy to loosen under the protection of the shock-absorbing device, reducing the risk of accidents. It avoids the risk of open flame caused by short circuit due to line vibration and overheating of components. The vibration amplitude of the cable is reduced under the action of the shock-absorbing device, which can avoid the damage to the insulation layer caused by friction with the metal edge of the cabinet.

Description

Technical Field

[0001] This utility model belongs to the field of power distribution cabinet technology. Specifically, this utility model relates to a shock absorption device for a power distribution cabinet on a ship. Background Technology

[0002] On modern ships, electrical distribution cabinets are essential. They are mainly used to distribute electrical energy to downstream distribution equipment in different locations.

[0003] Patent No. 202420627950.6 discloses a marine power distribution cabinet published on November 19, 2024. The cabinet includes a cabinet body, a connecting plate, a fixing plate, and a protective shell. The protective shell is open, and the cabinet body, connecting plate, and fixing plate are arranged sequentially from top to bottom within the protective shell. The connecting plate is connected to the bottom of the cabinet body, and the fixing plate is connected to the bottom of the inner part of the protective shell. A steel wire shock-absorbing assembly is provided between the cabinet body and the connecting plate, and a counterweight assembly for lowering the cabinet's center of gravity is provided between the connecting plate and the fixing plate. Universal shock-absorbing support assemblies are provided between the four opposite corners of the connecting plate and the fixing plate. An operating port is provided on the protective shell, and a sealing plate is connected to the operating port. This application improves the shock absorption and buffering function of the power distribution cabinet, as well as its waterproof function, thus ensuring the service life of the power distribution cabinet.

[0004] In the existing technology, ships are subjected to various impacts from waves, mechanical vibrations, and emergency braking during navigation. These vibrations and impacts may cause fatigue cracks in the metal frame of the distribution cabinet due to high-frequency vibrations, and may also cause internal components (such as circuit breakers and relays) to fall off or be damaged by collision due to violent displacement. Through the elastic buffering of the shock absorption device, the alternating stress borne by the fasteners such as mounting bolts and terminal block screws can also be reduced, and the probability of thread wear and loosening can be reduced. Utility Model Content

[0005] The present invention aims to provide a shock-absorbing device for shipboard electrical control cabinets that can reduce damage caused by ship rolling.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a shock-absorbing device for a power distribution cabinet on a ship, including a base, the power distribution cabinet being mounted on the base, a rotating seat being provided inside the base, a cross shaft being provided inside the rotating seat, and buffer components connected to the power distribution cabinet being provided at both ends of the cross shaft, the buffer components being installed at the bottom of the power distribution cabinet by bolts.

[0007] The buffer component consists of an upper cylinder and a lower cylinder that are fitted together. The upper cylinder is connected to the power distribution cabinet by bolts, and the lower cylinder is mounted on a cross shaft. The upper cylinder has an arc-shaped claw at one end near the lower cylinder, and the inner side of the lower cylinder has a groove that mates with the claw. The diameter of the claw end is smaller than the diameter of the part where the claw connects to the upper cylinder.

[0008] The end of the cross shaft is hinged to a mounting plate, and the lower cylinder is mounted on the mounting plate.

[0009] An mounting plate is hinged inside the upper cylinder, and a support spring is provided between the mounting plate and the inner wall of the lower cylinder. The mounting plate is fixed to a bolt, and the bolt passes through the top wall of the upper cylinder.

[0010] The cross shaft includes a central shaft hinged to the swivel base, a mounting box is provided on the central shaft, a horizontal shaft is provided through the mounting box, and the buffer is provided at both ends of the horizontal shaft.

[0011] The rotating base is equipped with a damping ring fitted onto the end of the central shaft.

[0012] The mounting box is provided with holes that mate with the central shaft and the horizontal shaft, and damping rings that fit tightly against the surfaces of the central shaft and the horizontal shaft are provided in the holes.

[0013] The base is provided with a groove around the distribution cabinet, and a retractable rod connected to the distribution cabinet is provided in the groove.

[0014] The surface of the power distribution cabinet located in the groove is equipped with a rubber pad.

[0015] The technical effects of this utility model are as follows: By utilizing a cross shaft and shock absorbers, the distribution cabinet is levitated, thereby reducing the impact of ship swaying on the distribution cabinet and reducing collisions between the distribution cabinet and the base. This effectively reduces the vibration and impact transmitted to the distribution cabinet during ship operation. The problem of shortened lifespan of components such as relays and circuit breakers due to vibration wear is improved, reducing spare parts procurement and downtime maintenance costs. The grounding terminal is less prone to loosening under the protection of the shock absorber, reducing the risk of accidents. It avoids the risk of open flames caused by short circuits due to line vibration and overheating of components. The vibration amplitude of cables is reduced under the action of the shock absorber, which can prevent insulation layer damage caused by friction with the metal edge of the cabinet. Attached Figure Description

[0016] This manual includes the following figures, which illustrate the following:

[0017] Figure 1 This is a schematic diagram of the structure of a shock-absorbing device for a shipboard electrical distribution cabinet according to the present invention;

[0018] Figure 2 for Figure 1 A schematic diagram of a shock-absorbing device for a type of electrical distribution cabinet on a ship;

[0019] Figure 3 for Figure 1 A schematic diagram of the upper and lower cylinders of a shock-absorbing device for a shipboard electrical distribution cabinet;

[0020] Figure 4 for Figure 1 A schematic diagram of the cross shaft of a shock-absorbing device for a power distribution cabinet on a ship.

[0021] The markings in the diagram are as follows: 1. Base; 2. Distribution cabinet; 3. Rotary seat; 4. Cross shaft; 41. Central shaft; 42. Horizontal shaft; 43. Mounting box; 5. Buffer; 51. Upper cylinder; 52. Lower cylinder; 53. Claw; 54. Slot; 55. Mounting plate; 56. Mounting piece; 57. Support spring; 6. Bolt; 7. Retractable rod; 8. Rubber pad. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution, and to facilitate its implementation.

[0023] Please see Figure 1-4 A vibration damping device for a shipboard electrical distribution cabinet includes a base 1, a distribution cabinet 2 mounted on the base 1, a rotating seat 3 inside the base 1, a cross shaft 4 inside the rotating seat 3, and buffer components 5 at both ends of the cross shaft 4 connected to the distribution cabinet 2. The buffer components 5 are installed at the bottom of the distribution cabinet 2 by bolts 6. By utilizing the cross shaft 4 and the vibration damping components, the distribution cabinet 2 is levitated, thereby reducing the impact of ship swaying on the distribution cabinet 2 and reducing collisions between the distribution cabinet 2 and the base 1. This effectively reduces the vibration and impact transmitted to the distribution cabinet 2 during ship operation. The problem of shortened lifespan of components such as relays and circuit breakers due to vibration wear is improved, reducing spare parts procurement and downtime maintenance costs. The grounding terminal is less likely to loosen under the protection of the vibration damping device, reducing the risk of accidents. It avoids the risk of open flames caused by short circuits due to line vibration and overheating of components. The vibration amplitude of cables is reduced under the action of the vibration damping device, which can avoid damage to the insulation layer caused by friction with the metal edge of the cabinet.

[0024] The buffer component 5 consists of an upper cylinder 51 and a lower cylinder 52, which are fitted together. The upper cylinder 51 is connected to the distribution cabinet 2 by bolts 6, and the lower cylinder 52 is mounted on the cross shaft 4. The upper cylinder 51 has an arc-shaped claw 53 at one end near the lower cylinder 52, and the inner side of the lower cylinder 52 has a groove 54 that mates with the claw 53. The diameter of the end of the claw 53 is smaller than the diameter of the part where the claw 53 connects to the upper cylinder 51. Since the diameter of the connecting part of the claw 53 is larger than the diameter of the end of the claw 53, and the diameter of the groove 54 is the same at both ends, when the upper cylinder 51 descends, the claw 53 descends along the groove 54, which will play a certain degree of buffering effect. When suddenly subjected to greater pressure, the claw 53 of the upper cylinder 51 will rotate and descend along the groove 54, changing the direction of the pressure generated by the up-and-down shaking. While using the wall of the groove 54 to support the claw 53, it can also reduce the vertical displacement of the upper cylinder 51 and reduce the amplitude of the up-and-down shaking.

[0025] The end of the cross shaft 4 is hinged to a mounting plate 55, and the lower cylinder 52 is mounted on the mounting plate 55; this can minimize the impact of the ship's swaying on the power distribution cabinet 2 and reduce the amplitude of the swaying of the power distribution cabinet 2.

[0026] An mounting plate 56 is hinged inside the upper cylinder 51. A support spring 57 is provided between the mounting plate 56 and the inner wall of the lower cylinder 52. The mounting plate 56 is fixed to the bolt 6, which passes through the top wall of the upper cylinder 51. The support spring 57 plays a secondary buffering role, and due to the presence of the mounting plate 56, mutual movement interference between the support spring 57 and the upper cylinder 51 can be avoided.

[0027] The cross shaft 4 includes a central shaft 41 hinged to the rotating base 3. A mounting box 43 is provided on the central shaft 41, and a horizontal shaft 42 is provided through the mounting box 43. Buffers 5 are provided at both ends of the horizontal shaft 42. The central shaft 41 can rotate left and right relative to the rotating base 3, so that the power distribution cabinet 2 can rotate relative to the base 1. When the hull sways left and right, the rotation angle of the power distribution cabinet 2 is guaranteed as much as possible. Furthermore, due to the presence of the mounting box 43 and the horizontal shaft 42, the controllable sway angle can be increased.

[0028] The rotating base 3 is equipped with a damping ring fitted onto the end of the central shaft 41; the damping ring can increase the friction between the central shaft 41 and the rotating base 3, reduce the amplitude of rotation, and prevent excessive shaking speed from affecting the equipment inside the distribution cabinet 2.

[0029] The mounting box 43 has holes that mate with the central shaft 41 and the horizontal shaft 42. The holes have damping rings that fit tightly against the surfaces of the central shaft 41 and the horizontal shaft 42. This reduces the rotational amplitude between the horizontal shaft 42 and the central shaft 41. By using the effect of two-stage speed reduction, the speed of shaking is slowed down, and excessive shaking speed is avoided from affecting the equipment inside the distribution cabinet 2.

[0030] The base 1 has a groove around the distribution cabinet 2, and a retractable rod 7 connected to the distribution cabinet 2 is installed in the groove; the retractable rod 7 is used to ensure that the distribution cabinet 2 can be upright when driving smoothly, and to avoid tilting during normal use.

[0031] The surface of the distribution cabinet 2 located in the groove is equipped with a rubber pad 8 to prevent significant damage in the event of a collision.

[0032] Working principle: The cooperation of the rotating base 3 and the cross shaft 4 can support the distribution cabinet 2, making the distribution cabinet 2 suspended relative to the base 1. This can minimize the impact of the base 1 swaying with the hull on the distribution cabinet 2, keeping the distribution cabinet 2 as level as possible and preventing damage to internal components and other structures. The end of the cross shaft 4 is equipped with a buffer 5 that connects to the distribution cabinet 2. The buffer 5 consists of an upper cylinder 51 and a lower cylinder 52 that are fitted together. The upper cylinder 51 is connected to the distribution cabinet 2 by bolts 6, and the lower cylinder 52 is mounted on the cross shaft 4. The end of the upper cylinder 51 near the lower cylinder 52 has an arc-shaped claw 53, and the inner side of the lower cylinder 52... A groove 54 is provided to cooperate with the claw 53. The diameter of the end of the claw 53 is smaller than the diameter of the part connecting the claw 53 and the upper cylinder 51. Since the diameter of the connecting part of the claw 53 is larger than the diameter of the end of the claw 53, and the diameter of the groove 54 is the same at both ends, when the upper cylinder 51 descends, the claw 53 descends along the groove 54, which will play a certain degree of buffering effect. When suddenly subjected to greater pressure, the claw 53 of the upper cylinder 51 will rotate and descend along the groove 54, changing the direction of the pressure generated by the up-and-down shaking. While using the wall of the groove 54 to support the claw 53, it can also reduce the vertical displacement of the upper cylinder 51 and reduce the amplitude of up-and-down swaying. Meanwhile, the cross shaft 4 includes a central shaft 41 hinged to the rotating base 3. A mounting box 43 is provided on the central shaft 41, and a horizontal shaft 42 passes through the mounting box 43. Buffer components 5 are located at both ends of the horizontal shaft 42. The central shaft 41 can rotate left and right relative to the rotating base 3, allowing the distribution cabinet 2 to rotate relative to the base 1. This ensures the rotation angle of the distribution cabinet 2 is maintained as much as possible when the ship sways left and right. Furthermore, the presence of the mounting box 43 and the horizontal shaft 42 increases the controllable angle of swaying. The rotating base 3 is equipped with a damping ring fitted onto the end of the central shaft 41. The damping ring increases the friction between the central shaft 41 and the rotating base 3, reducing the amplitude of rotation and preventing swaying. Excessive oscillation speed can affect the equipment inside the distribution cabinet 2. The mounting box 43 is provided with holes that mate with the central shaft 41 and the horizontal shaft 42. Damping rings are provided in the holes and are tightly attached to the surfaces of the central shaft 41 and the horizontal shaft 42 to reduce the rotation amplitude between the horizontal shaft 42 and the central shaft 41. By using the effect of two-stage speed reduction, the swaying speed is slowed down, and the excessive swaying speed is prevented from affecting the equipment inside the distribution cabinet 2. In order to ensure normal use, the base 1 is provided with grooves around the distribution cabinet 2. The grooves are provided with retractable rods 7 connected to the distribution cabinet 2. The retractable rods 7 are used to ensure that the distribution cabinet 2 can be straightened when traveling smoothly, and to prevent tilting during normal use.

[0033] The technical effects of this utility model are as follows: By utilizing the cross shaft 4 and shock absorbers, the distribution cabinet 2 is levitated, thereby reducing the impact of ship swaying on the distribution cabinet 2 and reducing the collision between the distribution cabinet 2 and the base 1. This effectively reduces the vibration and impact transmitted to the distribution cabinet 2 during ship operation. The problem of shortened lifespan of components such as relays and circuit breakers due to vibration wear is improved, reducing spare parts procurement and downtime maintenance costs. The grounding terminal is less likely to loosen under the protection of the shock absorber, reducing the risk of accidents. It avoids the risk of open flame caused by short circuits due to line vibration and overheating of components. The vibration amplitude of the cable is reduced under the action of the shock absorber, which can avoid the insulation layer damage caused by friction with the metal edge of the cabinet.

[0034] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A shock-absorbing device for a shipboard electrical distribution cabinet, comprising a base (1), wherein the electrical distribution cabinet (2) is mounted on the base (1), characterized in that: The base (1) is provided with a rotating seat (3), the rotating seat (3) is provided with a cross shaft (4), and the two ends of the cross shaft (4) are provided with buffers (5) connected to the power distribution cabinet (2). The buffers (5) are installed at the bottom of the power distribution cabinet (2) by bolts (6).

2. The shock absorption device for a shipboard electrical distribution cabinet according to claim 1, characterized in that: The buffer component (5) is divided into an upper cylinder (51) and a lower cylinder (52) that are fitted together. The upper cylinder (51) is connected to the power distribution cabinet (2) by bolts (6). The lower cylinder (52) is mounted on the cross shaft (4). The upper cylinder (51) has an arc-shaped claw (53) at one end near the lower cylinder (52). The inner side of the lower cylinder (52) has a groove (54) that mates with the claw (53). The diameter of the end of the claw (53) is smaller than the diameter of the part where the claw (53) connects to the upper cylinder (51).

3. The shock absorption device for a shipboard electrical distribution cabinet according to claim 2, characterized in that: The end of the cross shaft (4) is hinged to a mounting plate (55), and the lower cylinder (52) is mounted on the mounting plate (55).

4. The shock absorption device for a shipboard electrical distribution cabinet according to claim 2, characterized in that: An mounting plate (56) is hinged inside the upper cylinder (51). A support spring (57) is provided between the mounting plate (56) and the inner wall of the lower cylinder (52). The mounting plate (56) is fixed on a bolt (6), which penetrates the top wall of the upper cylinder (51).

5. A shock-absorbing device for a shipboard electrical distribution cabinet according to claim 1 or 2, characterized in that: The cross shaft (4) includes a central shaft (41) hinged to the rotating seat (3), a mounting box (43) is provided on the central shaft (41), a horizontal shaft (42) is provided through the mounting box (43), and the buffer (5) is provided at both ends of the horizontal shaft (42).

6. The shock absorption device for a shipboard electrical distribution cabinet according to claim 5, characterized in that: The rotating base (3) is provided with a damping ring fitted onto the end of the central shaft (41).

7. A shock-absorbing device for a shipboard electrical distribution cabinet according to claim 5, characterized in that: The mounting box (43) is provided with holes that mate with the central shaft (41) and the horizontal shaft (42), and a damping ring is provided in the hole that fits tightly against the surface of the central shaft (41) and the horizontal shaft (42).

8. The shock absorption device for a shipboard electrical distribution cabinet according to claim 1, characterized in that: The base (1) is provided with a groove around the distribution cabinet (2), and a retractable rod (7) connected to the distribution cabinet (2) is provided in the groove.

9. A shock-absorbing device for a shipboard electrical distribution cabinet according to claim 8, characterized in that: The surface of the power distribution cabinet (2) located in the groove is provided with a rubber pad (8).

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