A feeder-based distributed automated power distribution terminal

Abstract

This invention relates to the field of feeder terminal technology, specifically to a feeder distributed automated power distribution terminal, comprising a main control unit and a data acquisition unit. The data acquisition unit is electrically connected to an external control cable. The main control unit is equipped with a support base, on which a square guide rail is fixedly mounted. A sliding frame is mounted on the guide rail, and the sliding frame has a square guide groove for threading through the guide rail. A probe is fixedly mounted on the sliding frame. An elastic body is fixedly mounted on the sliding frame, with its other end fixedly connected to a protective cap. The protective cap has a detection hole for threading the probe. This invention solves the problem of existing distributed feeder terminals being easily damaged during wiring due to exposed probes.

Description

Technical Field

[0001] This invention relates to the field of feeder terminal technology, specifically a feeder distributed automated power distribution terminal. Background Technology

[0002] Distributed feeder terminals are key intelligent terminal devices in distribution network automation systems, widely deployed in outdoor ring main units, branch boxes, and pole-mounted switches. Their main functions are to achieve remote measurement, remote signaling, and remote control of distribution network feeder lines, complete fault location, isolation, and automatic restoration of power supply to non-faulty sections, and are a core component for improving the reliability and operational efficiency of distribution networks. With the deepening of smart distribution network construction, the installation density and operating environment of distributed feeder terminals are becoming increasingly stringent. For example, the technical document with publication number CN221614458U, entitled "A Feeder Terminal," discloses a form of feeder terminal.

[0003] Currently, commercially available distributed feeder terminals generally employ an exposed connector design for the terminal area used to connect control cables. This means the connector is fixed at the bottom of a recessed socket, directly exposed within the socket. During installation or maintenance, operators must insert the external control cable into the corresponding terminal and tighten the screws to establish the electrical connection. However, this design has significant drawbacks in practical applications: because the connector is directly exposed, the plug may directly press against the end of the connector during insertion, applying axial pressure. Furthermore, due to limited visibility, operators cannot observe the situation inside the socket during insertion. Therefore, when the plug presses against the connector end, operators may mistake the reaction force of the connector for normal insertion resistance, thus applying even greater force to the plug. This can lead to irreversible bending deformation of the connector, damaging the terminal and ultimately preventing the plug from properly matching the terminal. In severe cases, it can even cause cracking of the solder joint between the connector base and the printed circuit board or damage to the insulating base.

[0004] Physical deformation of the connecting post not only directly affects the stability of the contact resistance and causes abnormal heating at the connection point, but may also lead to signal transmission interruption or control command failure, significantly reducing the operational reliability of the distributed feeder terminal. Furthermore, damaged connecting posts require replacement with new terminals, making on-site maintenance difficult and time-consuming, often resulting in prolonged unplanned outages of distribution automation lines, causing additional maintenance costs and power supply losses for power grid companies.

[0005] To address this issue, a distributed automated power distribution terminal for feeders is proposed to solve the problem that existing distributed feeder terminals are easily damaged during wiring due to exposed connection posts. Summary of the Invention

[0006] The purpose of this invention is to provide a distributed automated power distribution terminal for feeders, which solves the problem that existing distributed feeder terminals are easily damaged during wiring due to exposed probes.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A feeder-based distributed automation power distribution terminal includes a main control unit and a data acquisition unit. The data acquisition unit is electrically connected to an external control cable. The main control unit is equipped with a support base, on which a square guide rail is fixedly mounted. A sliding frame is provided on the guide rail, and the sliding frame has a square guide groove for the guide rail to pass through. A probe is fixedly mounted on the sliding frame. An elastic body is fixedly mounted on the sliding frame, and the other end of the elastic body is fixedly connected to a protective cap. The protective cap has a detection hole for the probe to pass through. The data acquisition unit has a sampling port for connecting to the probe. A fastening ring is fitted onto the data acquisition unit, and an internal thread is provided on the inner side of the fastening ring. An external thread for engaging with the internal thread is provided on the sliding frame. The fastening ring covers the protective cap.

[0009] The protective cap has a fixed limiting pin installed inside, and the acquisition unit has a matching limiting groove. When the acquisition unit is inserted into the protective cap, the limiting relationship between the limiting pin and the limiting groove ensures that the acquisition unit can only be inserted into the protective cap in a unique position. This ensures that after the acquisition unit is inserted into the protective cap, each sampling port and each detection hole are aligned one by one.

[0010] Based on this setup, the acquisition unit will be used to connect to an external control cable. Connecting the acquisition unit to the main control unit then establishes the connection between the control cable and the main control unit. The protective cap serves as a socket for inserting the acquisition unit. Before connecting the acquisition unit to the main control unit, the sliding bracket will move as far away from the protective cap as possible due to the elasticity of the elastomer, ensuring that the probe does not extend into the protective cap and is not exposed in the socket.

[0011] When connecting the acquisition unit to the main control unit, first insert the acquisition unit into the protective cap. At this point, the probe has not yet entered the protective cap. Then, align the internal thread on the fastening ring with the external thread on the sliding bracket, and then rotate the fastening ring. Due to the square shape of the guide groove and guide rail, the sliding bracket cannot rotate. Therefore, as the connecting cap rotates, the internal and external threads gradually engage, causing the sliding bracket to move towards the connecting cap, thus gradually pushing the probe from the detection hole into the protective cap, i.e., into the socket. At this point, because the detection hole is aligned with the sampling port, the probe, which has passed through the detection hole and entered the protective cap, will also be directly aligned with the sampling port and inserted into it. This prevents direct axial compression of the probe by the acquisition unit during insertion into the socket, avoiding the problem of irreversible bending deformation of the probe during wiring due to it being exposed inside the socket.

[0012] Preferably, a reset plate is fixedly installed inside the sampling port, and a signal clip is fixedly installed on the other end of the reset plate. The signal clip is used to clamp the side of the probe; the signal clip is electrically connected to an external control cable.

[0013] With this setting, the signal clip will take on a V-shaped horn shape, with the upper opening of the V facing the probe direction. Therefore, when the probe is inserted into the sampling port, it can enter from the wide side of the horn, thus enabling more convenient and smooth alignment.

[0014] When the probe is inserted into the sampling port, its tip first presses against the bottom of the V-shaped signal clamp, then overcomes the spring force of the reset plate and pushes the signal clamp towards the inside of the sampling port. As the signal clamp moves towards the inside of the sampling port, the two sides of the V-shape of the signal clamp are squeezed inward by the sampling port and gradually converge, gradually clamping the sides of the probe, thereby achieving the connection of the probe and establishing the connection between the main control unit and the control cable.

[0015] Based on this, the signal clip is provided with a slot, the shape of which is the same as the side of the probe. The slot is used to fit against the side of the probe. With this configuration, when the signal clip clamps the side of the probe, it will fit against the side of the probe through the slot, thereby increasing the contact area between the signal clip and the probe. This is beneficial to improving the stability and reliability of the connection, while also helping to reduce the connection resistance between the two, improving the reliability of the invention, and extending its service life.

[0016] Preferably, the signal clamp has a curved portion and two clamping arms, the two clamping arms being fixedly connected to the two ends of the curved portion respectively, and the reset piece being disposed on the curved portion; the slot is disposed on the clamping arms, and the curved portion is an elastic member.

[0017] With this design, when the probe pushes the signal clamp towards the sampling port, the clamp arm maintains its original shape due to its structural strength, while the curved portion deforms due to its own elasticity, causing the clamp arm to gradually move closer to the probe. This allows the deformation of the signal clamp to be controlled at specific locations, making its deformation more manageable and improving the smoothness of the movement. Simultaneously, because the clamp arm does not deform, the signal clamp and probe sides fit together tightly, resulting in a larger contact area. This improves the stability and reliability of the connection, reduces the connection resistance, enhances the reliability of the invention, and extends its service life.

[0018] Preferably, a slide is provided inside the sampling port, and a first top member, a second top member, and a third top member are sequentially arranged inside the slide. The first top member, the second top member, and the third top member are respectively provided with a first accommodating cavity, a second accommodating cavity, and a third accommodating cavity; the lengths of the first accommodating cavity, the second accommodating cavity, and the third accommodating cavity increase sequentially. A first protrusion, a second protrusion, and a third protrusion are sequentially arranged on the clamping arm; the lengths of the first protrusion, the second protrusion, and the third protrusion increase sequentially. A guide post is fixedly installed on each of the first top member, the second top member, and the third top member, and the guide post is arranged inside the slide. The first protrusion, the second protrusion, and the third protrusion are sequentially arranged on the clamping arm, and the first protrusion, the second protrusion, and the third protrusion are respectively used to abut against and cooperate with the first top member, the second top member, and the third top member.

[0019] With this configuration, when the signal clamp is pushed by the probe, because the lengths of the first, second, and third accommodating cavities are different and increase sequentially, the first, second, and third protrusions will sequentially push the first, second, and third top members respectively as the signal clamp moves within the sampling port. Specifically, the shortest protrusion, the first one, will not abut against the second and third top members as the signal clamp moves. Instead, it will pass through the second and third accommodating cavities and eventually abut against the first accommodating cavity. Thus, limited by the slide and guide post, it can push the first top member to move. Correspondingly, the second and third protrusions will similarly push the second and third top members respectively. With this configuration, when the two clamping arms of the signal clamp grip the probe, multiple support points are provided for the clamping arms through the first, second, and third top members. This provides support force to the clamping arms in the direction of the probe, helping to reduce possible bending of the clamping arms during operation and ensuring a tight connection between the signal clamp and the probe, thus improving the reliability of the invention. It is worth noting that, to prevent the guide post from rotating within the slide, the guide post can be made square and fitted with the side wall of the slide.

[0020] Based on this, the first accommodating cavity, the second accommodating cavity, and the third accommodating cavity are all provided with inclined surfaces.

[0021] With this configuration, taking the first protrusion as an example, when the signal clamp moves within the sampling port, even if the first protrusion erroneously collides with the second or third accommodating cavity due to displacement or mechanical errors during its movement, the inclined surface allows the first protrusion to continue sliding along the inclined surface, thus passing over the second or third top piece and ultimately engaging with the first top piece. The second protrusion follows the same principle. This helps ensure that the first, second, and third protrusions engage with the first, second, and third top pieces in the correct pairing relationship, thereby improving the motion stability of the invention. Furthermore, still taking the first protrusion as an example, when the first protrusion engages with the first top piece, the first top piece may not fit tightly against the clamping arm due to part tolerances or other reasons. In this case, the first protrusion will engage with the inclined surface, meaning the first top piece can still fit against the clamping arm. Thus, the first top piece can still provide support to the clamping arm.

[0022] Preferably, a first cable for limiting the distance is provided between the first top member and the second top member, and a second cable for limiting the distance is provided between the second top member and the third top member; the guide post on the third top member is fixedly connected to the slide rail.

[0023] With this configuration, when the signal clamp grips the side of the probe, the guide post on the third top piece is fixedly connected to the slide rail, and the second cable limits the maximum distance between the second and third top pieces. Similarly, the first cable also limits the maximum distance between the first and second top pieces. This allows the first, second, and third top pieces to be evenly arranged on the clamping arm, providing uniform support and improving the tightness of the clamping arm against the probe.

[0024] It is worth mentioning that by setting different lengths for cable one and cable two, the spacing between the first top component, the second top component, and the third top component can be set differently, thereby adapting to different support requirements.

[0025] Preferably, an insulating layer is fixedly installed on the curved portion, and the reset piece is disposed on the insulating layer.

[0026] This design ensures the insulation layer possesses excellent electrical insulation properties, effectively isolating current and preventing short-circuit risks caused by current leakage through the reset plate. The insulation layer is securely mounted on the curved section using specialized fixing devices such as screws or clips, ensuring it will not shift or loosen under vibration or external force. The reset plate is precisely positioned above the insulation layer, designed with elasticity and stroke requirements in mind, allowing it to quickly return to its original shape after being subjected to pressure, thus guaranteeing accurate reset and long-term stable operation of the relevant mechanical components.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. This invention, by incorporating a protective cap, a fastening ring, and a sliding bracket, ensures that the probe does not extend into the protective cap before connecting the acquisition unit to the main control unit, thus preventing the probe from being exposed in the socket. When connecting the acquisition unit to the main control unit, rotating the fastening ring moves the sliding bracket towards the connection cap, pushing the probe into the protective cap. At this point, the probe is directly aligned with and inserted into the sampling port. This prevents direct axial compression of the probe by the acquisition unit during insertion into the socket, avoiding the problem of irreversible bending deformation of the probe during wiring.

[0029] 2. By designing a signal clamp, which forms a V-shaped horn, the probe can enter from the wider side of the horn when inserted into the sampling port, facilitating smoother alignment. When the probe is inserted, its tip first presses against the bottom of the V-shaped signal clamp, then overcomes the spring force of the reset plate, pushing the clamp further into the sampling port. As the clamp moves inward, its sides are compressed and gradually converge inward, clamping the sides of the probe and establishing a connection between the probe and the control cable.

[0030] 3. By incorporating the curved section and clamping arm, when the probe pushes the signal clamp towards the sampling port, the clamping arm maintains its original shape due to its structural strength, while the curved section undergoes bending deformation due to its own elasticity, causing the clamping arm to gradually move closer to the probe. This allows the deformation of the signal clamp to be controlled at specific locations, making the deformation of the signal clamp more controllable and contributing to improved motion stability of the invention. Simultaneously, since the clamping arm does not deform, a tight fit is ensured when the signal clamp and the side of the probe abut against each other. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of a partial planar cross-section of the present invention;

[0033] Figure 3 for Figure 2 A magnified view of part A in the middle;

[0034] Figure 4 for Figure 3 A magnified view of part B in the middle section;

[0035] Figure 5 for Figure 3 A magnified view of part C in the middle;

[0036] Figure 6 for Figure 5 A magnified view of part D in the middle;

[0037] Figure 7 For the clamp arm in Figure 5 Schematic diagram of the section cut under the SS section;

[0038] Figure 8 for Figure 5 A schematic diagram showing the state after the probe is inserted into the sampling port;

[0039] Figure 9 for Figure 8 A magnified view of part E in the middle.

[0040] In the diagram: 1. Main control unit; 2. Acquisition unit; 3. Support; 4. Limit pin; 5. Limit groove; 11. Control cable; 12. Fastening ring; 13. Internal thread; 14. External thread; 21. Sampling port; 22. Reset plate; 23. Signal clip; 24. Slide rail; 25. Guide post; 31. Guide rail; 32. Sliding frame; 33. Guide groove; 34. Protective cap; 35. Detection hole; 36. Probe; 37. Spring 221. Insulating layer; 231. Slot; 232. Clamping arm; 233. Bending part; 234. First protrusion; 235. Second protrusion; 236. Third protrusion; 241. First top piece; 242. Second top piece; 243. Third top piece; 244. Cable one; 245. Cable two; 246. First receiving cavity; 247. Second receiving cavity; 248. Third receiving cavity; 249. Inclined surface. Detailed Implementation

[0041] The following description, with the aid of the accompanying drawings listed in the foregoing "Description of Drawings", will clearly illustrate the specific embodiments of the present invention, in order to enable readers to have a more complete and objective understanding of the working principle and corresponding technical effects of the present invention.

[0042] like Figures 1 to 9 The image shows a specific embodiment of the present invention.

[0043] When the present invention is installed, the acquisition unit 2 is electrically connected to the external control cable 11. A support base 3 is provided on the main control unit 1, and a square guide rail 31 is fixedly installed on the support base 3. A sliding frame 32 is provided on the guide rail 31, and a square guide groove 33 for passing through the guide rail 31 is opened on the sliding frame 32. A probe 36 is fixedly installed on the sliding frame 32. An elastic body 37 is fixedly installed on the sliding frame 32, and the other end of the elastic body 37 is fixedly connected to a protective cap 34. A detection hole 35 for passing through the probe 36 is opened on the protective cap 34. A sampling port 21 for connecting with the probe 36 is opened on the acquisition unit 2. A fastening ring 12 is sleeved on the acquisition unit 2, and an internal thread 13 is provided on the inner side of the fastening ring 12. An external thread 14 for engaging with the internal thread 13 is provided on the sliding frame 32. The fastening ring 12 covers the protective cap 34. A limit pin 4 is fixedly installed inside the protective cap 34, and a limit groove 5 is opened on the acquisition unit 2.

[0044] Meanwhile, a reset piece 22 is fixedly installed inside the sampling port 21, and a signal clip 23 is fixedly installed on the other end of the reset piece 22. The signal clip 23 is used to clamp the side of the probe 36; the signal clip 23 is electrically connected to the external control cable 11. The signal clip 23 is provided with a slot 231, the shape of which is the same as the side of the probe 36, and the slot 231 is used to fit against the side of the probe 36. The signal clip 23 has a curved part 233 and two clamping arms 232. The two clamping arms 232 are fixedly connected to the two ends of the curved part 233 respectively. The reset piece 22 is disposed on the curved part 233; the slot 231 is disposed on the clamping arms 232; and the curved part 233 is an elastic member.

[0045] Additionally, a slide 24 is provided inside the sampling port 21, and a first top member 241, a second top member 242, and a third top member 243 are sequentially arranged inside the slide 24. A first receiving cavity 246, a second receiving cavity 247, and a third receiving cavity 248 are respectively provided on the first top member 241, the second top member 242, and the third top member 243; the lengths of the first receiving cavity 246, the second receiving cavity 247, and the third receiving cavity 248 increase sequentially; a first protrusion 234, a second protrusion 235, and a third protrusion 236 are sequentially arranged on the clamping arm 232. 36; The lengths of the first protrusion 234, the second protrusion 235, and the third protrusion 236 increase sequentially; Guide posts 25 are fixedly installed on the first top member 241, the second top member 242, and the third top member 243, and the guide posts 25 are set inside the slide rail 24; The clamping arm 232 is provided with the first protrusion 234, the second protrusion 235, and the third protrusion 236 in sequence, and the first protrusion 234, the second protrusion 235, and the third protrusion 236 are respectively used to abut and cooperate with the first top member 241, the second top member 242, and the third top member 243. The first receiving cavity 246, the second receiving cavity 247, and the third receiving cavity 248 are all provided with inclined surfaces 249. A first cable 244 for limiting the spacing is provided between the first top member 241 and the second top member 242, and a second cable 245 for limiting the spacing is provided between the second top member 242 and the third top member 243; the guide post 25 on the third top member 243 is fixedly connected to the slide rail 24. An insulating layer 221 is fixedly installed on the curved part 233, and a reset piece 22 is disposed on the insulating layer 221.

[0046] When the present invention is in operation, the acquisition unit 2 is used to connect to the external control cable 11. Furthermore, by connecting the acquisition unit 2 to the main control unit 1, the connection between the control cable 11 and the main control unit 1 is achieved. The protective cap 34 serves as a socket for inserting the acquisition unit 2. Before connecting the acquisition unit 2 to the main control unit 1, under the elastic force of the elastic body 37, the sliding frame 32 will move as far away from the protective cap 34 as possible, thereby preventing the probe 36 from extending into the protective cap 34, i.e., ensuring that the probe 36 is not exposed in the socket.

[0047] When the acquisition unit 2 is connected to the main control unit 1, the acquisition unit 2 is first inserted into the protective cap 34. At this time, the probe 36 has not yet been inserted into the protective cap 34. Then, the internal thread 13 on the fastening ring 12 is aligned with the external thread 14 on the sliding frame 32. Then the fastening ring 12 is rotated. At this time, due to the square shape of the guide groove 33 and the guide rail 31, the sliding frame 32 cannot rotate. Therefore, as the connecting cap rotates, the internal thread 13 and the external thread 14 gradually engage, thereby causing the sliding frame 32 to move towards the connecting cap, and then gradually pushing the probe 36 from the detection hole 35 into the protective cap 34, that is, into the insertion hole. At this time, since the detection hole 35 is aligned with the sampling port 21, the probe 36, which passes through the detection hole 35 and enters the protective cap 34, will also be directly aligned with the sampling port 21 and inserted into the sampling port 21. This prevents the acquisition unit 2 from directly axially squeezing the probe 36 during the insertion of the acquisition unit 2 into the socket, and avoids the problem that the probe 36 is easily subjected to irreversible bending deformation during the wiring process due to the probe 36 being exposed in the socket.

[0048] The signal clip 23 has a V-shaped horn mouth, with the upper opening of the V-shape facing the probe 36. Therefore, when the probe 36 is inserted into the sampling port 21, it can enter from the wide side of the horn mouth, thus enabling more convenient and smooth alignment.

[0049] When probe 36 is inserted into sampling port 21, the end of probe 36 first abuts against the bottom of V-shaped signal clip 23, and then overcomes the elasticity of reset piece 22 to push signal clip 23 toward the inside of sampling port 21. As signal clip 23 moves toward the inside of sampling port 21, the V-shaped sides of signal clip 23 are squeezed inward by sampling port 21 and gradually clamp the sides of probe 36, thereby achieving connection to probe 36 and establishing connection between main control unit 1 and control cable 11.

[0050] Based on this, by setting the slot 231, when the signal clip 23 clamps the side of the probe 36, the side of the slot 231 will fit against the side of the probe 36, thereby increasing the contact area between the signal clip 23 and the probe 36, which is beneficial to improving the stability and reliability of the connection, while also helping to reduce the connection resistance between the two, improving the reliability of the invention, and extending the service life.

[0051] Furthermore, when the probe 36 pushes the signal clamp 23 into the sampling port 21, the clamp arm 232 maintains its original shape due to its structural strength, while the curved portion 233 deforms due to its own elasticity, causing the clamp arm 232 to gradually move closer to the probe 36. This allows the deformation of the signal clamp 23 to be controlled at specific locations, making its deformation more controllable and improving the smoothness of the movement of the invention. Simultaneously, since the clamp arm 232 does not deform, the signal clamp 23 and the side of the probe 36 can be tightly fitted together, resulting in a larger contact area between them. This improves the stability and reliability of the connection, reduces the connection resistance, enhances the reliability of the invention, and extends its service life.

[0052] When the acquisition unit 2 is pulled out of the protective cap 34, the reset plate 22 pushes the signal clip 23 upward. See also Figure 5 and Figure 8 As shown, since the lateral dimension of the curved portion 233 is large, the first top member 241, the second top member 242 and the third top member 243 can be pushed back upward through the curved portion 233, and the curved portion 233 can provide a limit for the first top member 241, the second top member 242 and the third top member 243.

[0053] It should be emphasized that, based on the content described above, although the beneficial effects of the present invention have been explained in detail and corresponding specific embodiments have been provided, those skilled in the art can still achieve the same technical effects by making conventional substitutions, modifications, or other alterations to the given technical solutions without creative effort, provided they fully understand the working principle of the present invention. However, such modifications should not be considered as exceeding the scope of the present invention. Specifically, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeder-based distributed automation power distribution terminal, comprising a main control unit (1) and a data acquisition unit (2), wherein the data acquisition unit (2) is electrically connected to an external control cable (11), characterized in that, The main control unit (1) is provided with a support base (3), and a square guide rail (31) is fixedly installed on the support base (3); a sliding frame (32) is provided on the guide rail (31), and a square guide groove (33) for passing through the guide rail (31) is opened on the sliding frame (32); a probe (36) is fixedly installed on the sliding frame (32); an elastic body (37) is fixedly installed on the sliding frame (32), and the other end of the elastic body (37) is fixedly connected to a protective cap (34), and a probe (36) is opened on the protective cap (34). The needle (36) has a detection hole (35); the acquisition unit (2) has a sampling port (21) for connecting with the probe (36); the acquisition unit (2) is fitted with a fastening ring (12), the inner side of the fastening ring (12) is provided with an internal thread (13), and the sliding frame (32) is provided with an external thread (14) for engaging with the internal thread (13); the fastening ring (12) covers the protective cap (34); the protective cap (34) is fixedly installed with a limiting pin (4), and the acquisition unit (2) has a limiting groove (5); A reset piece (22) is fixedly installed inside the sampling port (21). A signal clip (23) is fixedly installed on the other end of the reset piece (22). The signal clip (23) is used to clamp the side of the probe (36). The signal clip (23) is electrically connected to the external control cable (11). A slot (231) is provided on the signal clip (23). The shape of the slot (231) is the same as that of the side of the probe (36). The slot (231) is used to fit against the side of the probe (36). The signal clamp (23) has a curved part (233) and two clamping arms (232). The two clamping arms (232) are fixedly connected to the two ends of the curved part (233) respectively. The reset piece (22) is disposed on the curved part (233). The slot (231) is disposed on the clamping arm (232). The curved part (233) is an elastic member.

2. The feeder distributed automation distribution terminal according to claim 1, characterized in that, The sampling port (21) is provided with a slide (24), and a first top member (241), a second top member (242), and a third top member (243) are arranged sequentially in the slide (24). The first top member (241), the second top member (242), and the third top member (243) are respectively provided with a first receiving cavity (246), a second receiving cavity (247), and a third receiving cavity (248). The lengths of the first receiving cavity (246), the second receiving cavity (247), and the third receiving cavity (248) increase sequentially. The clamping arm (232) is provided with a first protrusion (234), a second protrusion (235), and a third protrusion (236). The lengths of the first protrusion (234), the second protrusion (235), and the third protrusion (236) increase sequentially; a guide post (25) is fixedly installed on the first top member (241), the second top member (242), and the third top member (243), and the guide post (25) is set in the slide (24); the clamping arm (232) is provided with the first protrusion (234), the second protrusion (235), and the third protrusion (236) in sequence, and the first protrusion (234), the second protrusion (235), and the third protrusion (236) are respectively used to abut against the first top member (241), the second top member (242), and the third top member (243).

3. A feeder-based distributed automation power distribution terminal according to claim 2, characterized in that, Inclined surfaces (249) are provided on the first accommodating cavity (246), the second accommodating cavity (247) and the third accommodating cavity (248).

4. A feeder-based distributed automation power distribution terminal according to claim 2, characterized in that, A first cable (244) for limiting the distance is provided between the first top member (241) and the second top member (242), and a second cable (245) for limiting the distance is provided between the second top member (242) and the third top member (243); the guide post (25) on the third top member (243) is fixedly connected to the slide (24).

5. A feeder-based distributed automation power distribution terminal according to claim 1, characterized in that, An insulating layer (221) is fixedly installed on the curved portion (233), and the reset piece (22) is disposed on the insulating layer (221).

Images