Backup power supply of power distribution terminal

Abstract

The utility model belongs to the technical field of power supply equipment, and discloses a power distribution terminal backup power supply, which comprises a backup power supply main body, the bottom surface of the backup power supply main body is fixedly connected with two groups of opposite positioning frames, the top of the backup power supply main body is fixedly connected with two opposite U-shaped guide rails, and the two U-shaped guide rails are respectively in one-to-one correspondence with the two groups of positioning frames. According to the utility model, a plurality of back-up power supply main bodies can be conveniently stacked and assembled from front to back or from top to bottom, the operation is more flexible and convenient, and when the back-up power supply main bodies need to be maintained and disassembled, the back-up power supply main bodies can be operated only in front of the back-up power supply main bodies. When the back-up power source is used, people do not need to stretch hands into the side portion or the rear portion of the back-up power source body, the baffle is swung to drive the ratchet wheel to rotate, the pawl is shifted to move upwards in the rotating process of the ratchet wheel, then the gear can drive the rack and the clamping block to move towards the interior of the positioning frame under rotation of the rotating shaft, and clamping connection between the clamping block and the clamping groove is removed.

Description

Technical Field

[0001] This utility model belongs to the field of power supply equipment technology, specifically a backup power supply for a power distribution terminal. Background Technology

[0002] The Distribution Switch Monitoring Terminal (FTU) has remote control, telemetry, remote signaling, and fault detection functions. It communicates with the distribution automation master station, providing information on the operating status of the distribution system and various parameters required for monitoring and control, including switch status, power parameters, phase-to-phase faults, ground faults, and parameters during faults. It also executes commands issued by the distribution master station to adjust and control the distribution equipment, achieving functions such as fault location, fault isolation, and rapid restoration of power to non-faulty areas. Improving the lifespan of digital electrical products, timely replenishing power, and maximizing their functionality to meet people's work and life needs has become increasingly urgent. Using energy storage-type backup power supplies is one common way to solve these problems.

[0003] Backup power supplies are typically used in stacked configurations. However, most backup power supplies are fixed to the sides of the device using traditional locking mechanisms during assembly. Disassembly requires operation from the side or rear of the power supply unit. In confined spaces or densely packed equipment environments, it is difficult for personnel to reach the sides or rear, leading to low maintenance efficiency and even requiring the disassembly of surrounding equipment, increasing operational complexity. To address these issues, we provide a power distribution terminal backup power supply solution. Utility Model Content

[0004] To address the problems mentioned in the background section, this utility model provides a backup power supply for a power distribution terminal.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a backup power supply for a power distribution terminal, comprising a backup power supply body, two sets of opposing positioning frames fixedly connected to the bottom surface of the backup power supply body, two opposing U-shaped guide rails fixedly connected to the top of the backup power supply body, and the two U-shaped guide rails corresponding one-to-one with the two sets of positioning frames, two slots being provided on the opposite sides of the two U-shaped guide rails, and a corresponding locking block being elastically slidably provided on the side of each positioning frame, a rotating shaft being rotatably connected between each set of positioning frames, a transmission mechanism for moving the locking block being provided at both ends of each rotating shaft, and a rotating mechanism being provided at the front end of each rotating shaft.

[0006] Preferably, a first spring is fixedly connected to the inner wall of each positioning frame, and one end of the first spring is connected to the locking block.

[0007] Preferably, each of the card blocks has a side plate fixedly connected to both sides, and a guide rod is slidably disposed through the middle of each side plate, with both ends of the guide rod fixedly connected to the inner wall of the positioning frame.

[0008] Preferably, the transmission mechanism includes a gear and a rack, the rack being fixedly connected to the upper surface of the locking block, the gear being fixedly connected to the surface of the rotating shaft, and the gear meshing with the rack.

[0009] Preferably, the rotating mechanism includes a mounting groove and a ratchet. The mounting groove is formed on the front side of the backup power supply body and extends to the bottom surface of the backup power supply body. The ratchet is fixed to the front end of the rotating shaft. A baffle is fixed to the center of the shaft on the front side of the ratchet, and one end of the baffle is located on the front side of the U-shaped guide rail. A pawl is slidably disposed in the mounting groove, and the bottom end of the pawl is engaged with the ratchet. A second spring is fixed to the top end of the pawl, and the top end of the second spring is fixed to the inner top wall of the mounting groove. A lever is fixed to the front side of the pawl, and the front end of the lever passes through the mounting groove and extends to the outside of the backup power supply body.

[0010] Preferably, the back and bottom surfaces of the protruding end of each card block are beveled.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model, through the coordinated arrangement of a positioning frame, U-shaped guide rail, slot, locking block, rotating shaft, transmission mechanism, and rotation mechanism, allows for the convenient stacking and assembly of multiple backup power supply units. Assembly can be performed from front to back or from top to bottom, making operation more flexible and convenient. Furthermore, when maintenance or disassembly of the backup power supply unit is required, operation can be performed from the front of the unit without requiring personnel to reach into the side or rear. Specifically, simply swinging the baffle causes the ratchet to rotate, moving the pawl upwards. The rotation of the rotating shaft then causes the gear to move the rack and locking block into the positioning frame, thus disengaging the locking block from the slot. Releasing the swing of the baffle allows the pawl to automatically stop the ratchet from reversing, preventing it from rotating backwards. Then, the backup power supply unit can be easily pulled out from the front. This simplified operation significantly improves the efficiency of backup power supply unit maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0015] Figure 3 This is a schematic diagram showing the connection between the two positioning frames of this utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the positioning frame of this utility model;

[0017] Figure 5This is a partial cross-sectional view of the positioning frame of this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the ratchet pawl of this utility model;

[0019] Figure 7 This utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Backup power supply main body; 2. U-shaped guide rail; 3. Slot; 4. Positioning frame; 5. Block; 6. Baffle; 7. Shaft; 8. Ratchet; 9. Rack; 10. Side plate; 11. Guide rod; 12. First spring; 13. Gear; 14. Pawl; 15. Lever; 16. Second spring; 17. Mounting slot. Detailed Implementation

[0021] 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.

[0022] like Figure 1-7As shown, this embodiment proposes a backup power supply for a power distribution terminal, including a backup power supply body 1. Two sets of opposing positioning frames 4 are fixed to the bottom surface of the backup power supply body 1, and two opposing U-shaped guide rails 2 are fixed to the top of the backup power supply body 1. The two U-shaped guide rails 2 correspond one-to-one with the two sets of positioning frames 4, allowing the backup power supply body 1 to slide within the two U-shaped guide rails 2 on another backup power supply body 1 via the two sets of positioning frames 4. This enables the two backup power supply bodies 1 to stack normally, and the U-shaped guide rails 2 ensure the guiding stability of the positioning frames 4 during sliding, preventing misalignment or displacement between the two backup power supply bodies 1. This ensures the stability of multiple backup power supply bodies 1 after stacking and assembly. Furthermore, the positioning frames 4 and U-shaped guide rails 2 do not occupy excessive space outside the backup power supply body 1, and also facilitate overall heat dissipation, maintaining space between each backup power supply body 1. Two slots 3 are provided on the opposite sides of the two U-shaped guide rails. Each positioning frame 4... Each side of the device has a sliding locking block 5 corresponding to the slot 3, allowing the backup power supply body 1 to be locked into the slot 3 of another backup power supply body 1 via the locking block 5. This ensures the assembly stability between the backup power supply bodies 1. Each set of positioning frames 4 is rotatably connected to a rotating shaft 7. Each rotating shaft 7 has a transmission mechanism at both ends that drives the locking block 5 to move. With the transmission mechanism, the rotation of the rotating shaft 7 will drive the two locking blocks 5 to move, making it easy to release the locking blocks 5 from the slot 3. Each rotating shaft 7 has a rotating mechanism at its front end. With the rotating mechanism, it is convenient for personnel to operate from the front of the backup power supply body 1, without having to operate from the side or rear of the backup power supply body 1, thus improving the ease of disassembly and assembly of the backup power supply body 1. The mechanics, parts and equipment in this device all adopt conventional models in the existing technology, and the circuit connection adopts conventional connection methods in the existing technology, which will not be described in detail here.

[0023] like Figure 4 and Figure 5 As shown, a first spring 12 is fixedly connected to the inner wall of each positioning frame 4, and one end of the first spring 12 is connected to the locking block 5. With the setting of the first spring 12, the elastic sliding effect of the locking block 5 is realized, so that the locking block 5 has the effect of automatic reset. Therefore, when the locking block 5 slides through the positioning frame 4 in the U-shaped guide rail 2, the locking block 5 will be squeezed into the positioning frame 4 through the inner wall of the U-shaped guide rail 2 until the locking block 5 is in the slot 3. Then, under the elastic force of the first spring 12, the locking block 5 will be automatically popped out and locked into the slot 3, effectively preventing the positioning frame 4 from sliding forward at will.

[0024] like Figure 4 and Figure 5As shown, each card block 5 has a side plate 10 fixedly connected to both sides, and a guide rod 11 is slidably arranged through the middle of each side plate 10. The two ends of the guide rod 11 are fixedly connected to the inner wall of the positioning frame 4. With the side plate 10 and the guide rod 11, the sliding stability of the card block 5 in the positioning frame 4 can be ensured, and the card block 5 can be prevented from tilting.

[0025] like Figure 4 and Figure 5 As shown, the transmission mechanism includes a gear 13 and a rack 9. The rack 9 is fixed to the upper surface of the locking block 5, and the gear 13 is fixed to the surface of the rotating shaft 7. The gear 13 meshes with the rack 9. With the above structure, when the locking block 5 is pressed and moved into the positioning frame 4, the rack 9 will drive the gear 13 to rotate, which in turn will drive the rotating shaft 7 to rotate. Conversely, when the rotating shaft 7 is rotating, the gear 13 will push the rack 9 to drive the locking block 5 to slide in the positioning frame 4, so as to release the locking block 5 from the locking groove 3.

[0026] like Figure 3 , Figure 4 , Figure 6 and Figure 7As shown, the rotating mechanism includes a mounting groove 17 and a ratchet 8. The mounting groove 17 is formed on the front of the backup power supply body 1 and extends to the bottom surface of the backup power supply body 1. The ratchet 8 is fixed to the front end of the rotating shaft 7. A baffle 6 is fixed to the center of the shaft on the front of the ratchet 8, and one end of the baffle 6 is located on the front of the U-shaped guide rail 2. A pawl 14 is slidably arranged in the mounting groove 17, and the bottom end of the pawl 14 is engaged with the ratchet 8. A second spring 16 is fixed to the top end of the pawl 14, and the top end of the second spring 16 is fixed to the inner top of the mounting groove 17. A lever 15 is fixedly connected to the front of the pawl 14, and the front end of the lever 15 passes through the mounting groove 17 and extends to the outside of the backup power supply body 1. With the above structure, it is not necessary for personnel to reach into the side and rear of the backup power supply body 1 to release the fixation to the other backup power supply body 1. In specific operation, simply swing the baffle 6, thereby driving the ratchet 8 to rotate. During the rotation of the ratchet 8, the pawl 14 will also move upward. At this time, the pawl 14 will not obstruct the rotation of the ratchet 8. Rotating the shaft 7 causes the gear 13 to drive the rack 9 and the locking block 5 to move into the positioning frame 4, thereby disengaging the locking block 5 from the slot 3 and releasing the swing of the baffle 6. At this time, the pawl 14 will automatically block the ratchet 8 to prevent it from reversing. Only when the operator moves the lever 15 upwards can the pawl 14 be moved upwards away from the ratchet 8. Then, under the elastic force of the first spring 12, the locking block 5 will automatically move outwards from the positioning frame 4, and the baffle 6 will automatically reset. After the power supply unit 1 is assembled, one end of the baffle 6 can also block the front of the U-shaped guide rail 2, preventing the backup power supply unit 1 located above from moving backward. Only when the baffle 6 is rotated and swung can the obstruction of the front of the U-shaped guide rail 2 be released. In addition, the axis of the rotating shaft 7 is located on one side of the middle of the positioning frame 4. Therefore, when the baffle 6 is rotated to 90° or 180°, it will not block the front of the U-shaped guide rail 2, so that the two backup power supply units 1 can be separated normally, making the operation simpler and more convenient.

[0027] like Figures 3 to 5 As shown, the back and bottom surfaces of the protruding end of each card block 5 are beveled, which allows the card block 5 to be pushed from the front of the U-shaped guide rail 2 and engaged with the card slot 3, or placed from above the U-shaped guide rail 2 and engaged with the card slot 3. Therefore, the assembly between the two backup power supply bodies 1 can be carried out from front to back and from top to bottom, making the operation more flexible and convenient. Different assembly operations can be carried out according to the actual space in the power distribution cabinet, which is conducive to the extraction of the backup power supply body 1 that needs maintenance.

[0028] The working principle and usage of this utility model are as follows: When multiple backup power supply units 1 need to be stacked and assembled, the upper backup power supply unit 1 can be placed from top to bottom into the two lower U-shaped guide rails 2 through two sets of positioning frames 4. Alternatively, the upper backup power supply unit 1 can be pushed from front to back into the two U-shaped guide rails 2 through the two sets of positioning frames 4. During this process, the locking block 5 will be squeezed by the inner wall of the U-shaped guide rail 2, thereby causing the locking block 5 to move into the positioning frame 4 and squeeze the first spring 12. This will also drive the gear 13 and the rotating shaft 7 to rotate through the rack 9 until the locking block 5 is located in the slot 3. Then, under the elastic force of the first spring 12, the locking block 5 is automatically locked and fixed to the slot 3, thereby preventing the two backup power supply units from being locked together. The two backup power units 1 can be easily separated. One end of the baffle 6 will also be in front of the U-shaped guide rail 2 to prevent the backup power unit 1 from moving backward. When it is necessary to release the two backup power units 1, simply swing the baffle 6 to drive the ratchet 8 to rotate. During the rotation of the ratchet 8, the pawl 14 will also move upward. At this time, the pawl 14 will not obstruct the rotation of the ratchet 8. Then, the rotation of the shaft 7 will cause the gear 13 to drive the rack 9 and the locking block 5 to move into the positioning frame 4, thereby completing the release of the locking block 5 from the locking slot 3. Release the swing of the baffle 6. At this time, the pawl 14 will automatically block the ratchet 8 to prevent the ratchet 8 from reversing. Then, the personnel can directly pull out the backup power unit 1 from the front. The operation is simpler.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0030] 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. A backup power supply for a power distribution terminal, comprising a backup power supply body (1), characterized in that: The bottom surface of the backup power supply body (1) is fixed with two sets of opposing positioning frames (4), and the top surface of the backup power supply body (1) is fixed with two opposing U-shaped guide rails (2). The two U-shaped guide rails (2) correspond one-to-one with the two sets of positioning frames (4). Two slots (3) are opened on the side of the two U-shaped guide rails (2) that are far apart from each other. Each side of the positioning frame (4) is elastically slidably provided with a card block (5) corresponding to the card slot (3). Each set of positioning frames (4) is rotatably connected with a rotating shaft (7). Each rotating shaft (7) is provided with a transmission mechanism at both ends to drive the card block (5) to move. Each rotating shaft (7) is provided with a rotating mechanism at the front end.

2. A backup power supply for a power distribution terminal according to claim 1, characterized in that: Each of the positioning frames (4) has a first spring (12) fixedly connected to its inner wall, and one end of the first spring (12) is connected to the locking block (5).

3. A backup power supply for a power distribution terminal according to claim 2, characterized in that: Each of the card blocks (5) has a side plate (10) fixedly connected to both sides, and a guide rod (11) is slidably provided through the middle of each side plate (10), and the two ends of the guide rod (11) are fixedly connected to the inner wall of the positioning frame (4).

4. A backup power supply for a power distribution terminal according to claim 3, characterized in that: The transmission mechanism includes a gear (13) and a rack (9). The rack (9) is fixed to the upper surface of the block (5), and the gear (13) is fixed to the surface of the rotating shaft (7). The gear (13) meshes with the rack (9).

5. A backup power supply for a power distribution terminal according to claim 4, characterized in that: The rotating mechanism includes a mounting groove (17) and a ratchet (8). The mounting groove (17) is located on the front of the backup power supply body (1) and extends to the bottom surface of the backup power supply body (1). The ratchet (8) is fixed to the front end of the rotating shaft (7). A baffle (6) is fixed to the center of the front of the ratchet (8), and one end of the baffle (6) is located on the front of the U-shaped guide rail (2). A pawl (14) is slidably arranged in the mounting groove (17), and the bottom end of the pawl (14) is engaged with the ratchet (8). A second spring (16) is fixed to the top of the pawl (14), and the top end of the second spring (16) is fixed to the inner top wall of the mounting groove (17). A lever (15) is fixed to the front of the pawl (14), and the front end of the lever (15) passes through the mounting groove (17) and extends to the outside of the backup power supply body (1).

6. A backup power supply for a power distribution terminal according to claim 1, characterized in that: The back and bottom surfaces of the protruding end of each of the card blocks (5) are beveled.

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