Large-current intelligent safety electricity utilization protection device
The design of the clip cover and switch mechanism connected by the rotating shaft solves the problem of complex testing of bolt-installed relay protectors, enabling rapid disassembly and inspection, and ensuring timely maintenance and safety of the relay protectors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江电工器材厂
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-14
AI Technical Summary
The existing bolt-mounted relay protection devices are complex and time-consuming to inspect, making it difficult for maintenance personnel to conduct regular inspections, increasing the risk of delayed fault detection and affecting system safety.
A relay protector with a cover and a switch mechanism connected by a rotating shaft was designed. Combined with a dustproof mechanism, it enables quick disassembly and inspection. The cover can be easily opened and closed by rotating the handle, and the dustproof mechanism prevents dust from entering, simplifying the maintenance process.
It enables rapid disassembly and inspection of relay protectors, ensuring timely fault detection, reducing maintenance frequency and costs, and improving equipment reliability and safety.
Smart Images

Figure CN224123883U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of relay protection technology, and in particular to a high-current intelligent safe electricity protection device. Background Technology
[0002] Current high-current electrical safety protection devices typically include relay protectors. A relay protector is a protective device used in power systems, primarily for detecting faults and abnormal conditions within the power system and taking corresponding actions to protect electrical equipment and personnel. It monitors and controls the power system by measuring parameters such as current and voltage and performing logical judgments.
[0003] Existing relay protectors are typically bolt-mounted. Since bolt-mounted relay protectors require disassembly for testing, this increases the complexity and time-consuming nature of the inspection process. Maintenance personnel may neglect regular inspections of the relay protectors due to the cumbersome or difficult operation, thus failing to detect potential problems or faults in a timely manner. Furthermore, bolt-mounted relay protectors require more time and effort to maintain. This leads to frequent delays or postponements of maintenance work, increasing the maintenance cycle. If a relay protector malfunctions or has problems and is not repaired promptly, it will fail to function properly in actual operation, thereby affecting system safety. Therefore, this utility model designs a high-current intelligent safety power protection device. Utility Model Content
[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a high-current intelligent safe electricity protection device.
[0005] The technical solution of this utility model is as follows: a high-current intelligent safe electricity protection device, including a relay protector body and a pair of card covers connected thereto. The relay protector body and the card covers are rotatably connected by a rotating shaft. Each card cover has a plug fixedly connected to its outer wall. The plug has a slot. The inner wall of the relay protector body is provided with a switch mechanism that can lock the plug.
[0006] Dustproof mechanisms are installed on the top and bottom of the relay protector body. The top and bottom of the relay protector body are provided with multiple connection wire holes that can be inserted and correspond to the dustproof mechanisms.
[0007] Optionally, the switching mechanism includes a switch box connected to the inner wall of the relay protector body. Rotating rods are rotatably connected to both ends of the switch box. A locking block that can be inserted is fixedly connected to the outer wall of the rotating rod. A fixing block corresponding to the rotating rod is fixedly connected inside the switch box. A spiral rod with one end movably passing through the switch box and rotatably connected to its inner wall is spirally connected to the relay protector body. One end of the fixing block is fixedly connected to one end of a first spring. A conical insertion block is fixedly connected to the other end of the first spring. One end of the conical insertion block is fixedly connected to one end of a connecting rope. The other end of the connecting rope movably passes through the fixing block and is fixedly connected to the outer wall of the spiral rod.
[0008] Optionally, the switch box is provided with a second spring that corresponds to and can push the rotating rod to rotate.
[0009] Optionally, the dustproof mechanism includes multiple dustproof blocks connected to the outer wall of the cover, corresponding to the connecting wire holes. The dustproof blocks are slidably connected to a telescopic plate. The dustproof blocks are equipped with a pair of third springs that can push the telescopic plate to slide. One end of the telescopic plate is provided with a wire-locking groove that can lock the wire.
[0010] Optionally, one end of the dustproof block is provided with a connecting groove for the wire to pass through, and the inside of the connecting groove is provided with a rubber telescopic pad that can fit tightly against the wire.
[0011] Optionally, the top and bottom of the relay protector body are provided with multiple cable bundle blocks that correspond to and are fixedly connected to the connection holes.
[0012] Optionally, a support block is fixedly connected to the upper surface of the switch box, and a fourth spring is provided inside the support block. Both ends of the fourth spring are fixedly connected to a connecting block that can push the cover to open automatically.
[0013] Optionally, one end of each connecting block is fixedly connected to a telescopic abutment that absorbs shock and prevents scratches on the cover.
[0014] Optionally, the other end of the screw is fixedly connected to a handle for easy rotation.
[0015] Compared with the prior art, the present invention has the following beneficial technical effects:
[0016] This invention utilizes a design incorporating a switching mechanism, dustproof mechanism, switch box, dustproof stop block, and support block, allowing maintenance personnel to quickly disassemble, inspect, and monitor the internal components of the relay protector. This facilitates the easier detection of potential faults or problems and enables timely corrective action, ensuring the normal operation of the relay protector. Furthermore, it encourages maintenance personnel to actively adhere to a prescribed schedule for regular maintenance and updates. Regular maintenance may include cleaning, calibration, and replacement of aging components. With proper maintenance, the relay protector can maintain good operating condition and improve its reliability and safety performance.
[0017] Furthermore, the connection ports of the relay protector can prevent dust from entering, which not only effectively extends the life of the relay protector, but also reduces the frequency and workload of maintenance by keeping the connection ports clean, thereby reducing maintenance costs. Attached Figure Description
[0018] Figure 1 A structural schematic diagram of a high-current intelligent safe electricity protection device according to this utility model is provided.
[0019] Figure 2 for Figure 1 Partial structural diagram;
[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 for Figure 2 Cross-sectional view of the switching mechanism;
[0022] Figure 5 for Figure 4 Enlarged view of point B in the middle;
[0023] Figure 6 for Figure 4 Enlarged view of point C in the middle;
[0024] Figure 7 for Figure 1 Enlarged view of point D in the middle;
[0025] Figure 8 for Figure 1 Schematic diagram of the dustproof mechanism;
[0026] Figure 9 for Figure 8 A schematic diagram of the cross-sectional structure.
[0027] Reference numerals in the attached diagram: 1. Relay protector body; 2. Cover; 21. Insert block; 22. Slot; 3. Connecting wire hole; 4. Cable bundle block; 5. Dustproof stop block; 51. Telescopic stop plate; 52. Connecting groove; 53. Rubber telescopic pad; 54. Cable slot; 55. Third spring; 6. Switch box; 61. Rotating rod; 62. Stop block; 63. Second spring; 64. Conical insert block; 65. First spring; 66. Connecting rope; 67. Fixing block; 68. Helical rod; 69. Handle; 7. Support block; 71. Connecting block; 72. Telescopic stop rod; 73. Fourth spring. Detailed Implementation
[0028] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0029] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0030] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0034] Example
[0035] like Figures 1-9 As shown, the present invention proposes a high-current intelligent safety power protection device, including a relay protector body 1 and a pair of cover plates 2 connected thereto. The top and bottom of the relay protector body 1 are provided with multiple cable bundle blocks 4 corresponding to and fixedly connected to the connection wire holes 3. The relay protector body 1 and the cover plates 2 are rotatably connected by a rotating shaft. The outer wall of each cover plate 2 is fixedly connected with an insertion block 21, and the insertion block 21 is provided with a slot 22. The inner wall of the relay protector body 1 is provided with a switching mechanism that can lock the insertion block 21. Dustproof mechanisms are installed on the top and bottom of the relay protector body 1, and the top and bottom of the relay protector body 1 are provided with multiple connection wire holes 3 that can be inserted into the connection wire and are corresponding to the dustproof mechanism.
[0036] The switching mechanism includes a switch box 6 connected to the inner wall of the relay protector body 1. Inside the switch box 6 is a second spring 63 corresponding to and capable of rotating the rotating rod 61. The function of the second spring 63 is to cause the rotating rod 61 to automatically engage the locking block 62 into the slot 22. Rotating rods 61 are rotatably connected to both ends inside the switch box 6. Locking blocks 62, capable of engaging insert blocks 21, are fixedly connected to the outer wall of the rotating rods 61. A fixing block 67 corresponding to the rotating rod 61 is fixedly connected inside the switch box 6. The relay protector body 1 is screwed with a spiral rod 68, one end of which movably passes through the switch box 6 and is rotatably connected to its inner wall. The fixing block 67 is fixedly connected to one end of the first spring 65. The function of the first spring 65 is to drive the conical insert block 64 into the gap between the inner wall of the switch box 6 and the rotating rod 61, thereby causing the rotating rod 61 to automatically disengage the locking block 62 from the slot 22. The other end of the first spring 65 is fixedly connected to a conical insert 64. One end of the conical insert 64 is fixedly connected to one end of the connecting rope 66. The other end of the connecting rope 66 passes through the fixing block 67 and is fixedly connected to the outer wall of the spiral rod 68. The other end of the spiral rod 68 is fixedly connected to a handle 69 for easy rotation. The connecting rope 66 is made of nylon rope, which is a rope material with high strength and good wear resistance, and has good tensile strength and durability.
[0037] The dustproof mechanism includes multiple dustproof blocks 5 connected to the outer wall of the cover 2, corresponding to the connecting wire holes 3. One end of each dustproof block 5 has a connecting groove 52 for the wire to pass through. Inside the connecting groove 52 is a rubber telescopic pad 53 that fits snugly against the wire. A telescopic abutment plate 51 is slidably connected inside the dustproof block 5. Inside the dustproof block 5 is a pair of third springs 55 that can push the telescopic abutment plate 51 to slide. The function of the third springs 55 is to cause the telescopic abutment plate 51 to move the wire-holding groove 54 against the connected outer wall, thereby preventing dust from entering. One end of the telescopic abutment plate 51 has a wire-holding groove 54 that can hold the wire. Inside the wire-holding groove 54 is a rubber pad, which has good sealing and wear resistance, effectively preventing dust, dirt, and other debris from entering.
[0038] A support block 7 is fixedly connected to the upper surface of the switch box 6. A fourth spring 73 is provided inside the support block 7. Both ends of the fourth spring 73 are fixedly connected to a connecting block 71 that can push the cover 2 to open automatically. One end of the connecting block 71 is fixedly connected to a telescopic rod 72 that absorbs shock and prevents scratching the cover 2.
[0039] In this embodiment, as Figure 1 As shown, when a high-safety relay protector is required, handle 69 can be turned. Handle 69 drives one end of the screw rod 68 to rotate. Since the screw rod 68 is screwed to the relay protector body 1, the other end of the screw rod 68 drives one end of a pair of connecting ropes 66 to rotate. At this time, the connecting ropes 66 will wrap around the outer wall of the screw rod 68, as shown. Figure 6 As shown, the connecting rope 66 then pulls the conical insert 64 to move, preventing the conical insert 64 from blocking the rotating rod 61 from rotating. The rotating rod 61 is then subjected to the elastic thrust of the second spring 63, causing the rotating rod 61 to drive the locking block 62 to press against the inner wall of the switch box 6. Finally, the cover 2 can be rotated one by one towards the relay protector body 1. The cover 2 drives the insert 21 to rotate and insert into the switch box 6. At the same time, the locking block 62 is subjected to the elastic thrust of the second spring 63, causing it to lock into the slot 22, thereby closing the cover 2.
[0040] like Figure 4-7 As shown, when it is necessary to open the cover 2, the handle 69 is rotated in the opposite direction. The handle 69 drives one end of the connecting rope 66 to rotate. The connecting rope 66 is pulled back by the first spring 65, causing the connecting rope 66 to disengage from the outer wall of the spiral rod 68. At the same time, the conical plug 64 is pushed by the elastic force of the conical plug 64, which in turn pushes one end of the first spring 65 to insert the conical plug 64 into the gap between the inner wall of the switch box 6 and the rotating rod 61. Since one end of the conical plug 64 is conical, it abuts against one end of the rotating rod 61 to make it rotate. Finally, the rotating rod 61 drives the locking block 62 to disengage from the slot 22 on the plug 21, which allows the pair of covers 2 to be opened quickly, thus facilitating the inspection and maintenance of the electrical components inside the relay protector body 1.
[0041] like Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, after the connecting wires are installed in the connecting wire holes 3 on the top and bottom of the relay protector body 1, when the pair of clips 2 are rotated to close the relay protector body 1, the pair of clips 2 cause the multiple dustproof blocks 5 on them to rotate in the same direction, so that the wire-clamping groove 54 at one end of the dustproof block 5 can clamp the wire. The telescopic plate 51 will be subjected to the elastic thrust of the third spring 55, so that the wire-clamping groove 54 on the telescopic plate 51 can tightly fit the outer wall of the wire according to the thickness of the wire. In addition, the rubber telescopic pad 53 will deform and fit the wire according to the outer contour of the wire, thereby preventing dust from entering.
[0042] like Figure 1-3 As shown, when it is necessary to open the cover 2 on the relay protector body 1, simply turn the handle 69, and the cover 2 will open. At this time, the connecting blocks 71 at both ends of the support block 7 are subjected to the elastic thrust of the fourth spring 73 inside the support block 7. The telescopic rod 72 driven by one end of the connecting block 71 pushes the cover 2 to rotate and open automatically, thus providing a convenient viewing experience for maintenance and testing personnel.
[0043] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A high-current intelligent safety power protection device, comprising a relay protector body (1) and a pair of clamping covers (2) connected thereto, characterized in that: The relay protector body (1) and the cover (2) are connected by a rotating shaft, the outer wall of the cover (2) is fixedly connected with an insertion block (21), the insertion block (21) is provided with a clamping groove (22), and the inner wall of the relay protector body (1) is provided with a switch mechanism capable of clamping the insertion block (21). A dustproof mechanism is mounted on the top and bottom of the relay protector body (1), and a plurality of connecting line holes (3) are formed in the top and bottom of the relay protector body (1) and correspond to the dustproof mechanism.
2. A high current smart safety power protection device according to claim 1, characterized in that, The switch mechanism comprises a switch box (6) connected to the inner wall of the relay protector body (1), rotating rods (61) rotatably connected to both ends of the switch box (6), clamping blocks (62) fixedly connected to the outer wall of the rotating rods (61) and capable of being clamped into the insertion block (21), a fixed block (67) fixedly connected to the switch box (6) and corresponding to the rotating rods (61), a spiral rod (68) spirally connected to the relay protector body (1) and having one end rotatably penetrating through the switch box (6), one end of the fixed block (67) fixedly connected with a first spring (65), a tapered insertion block (64) fixedly connected to the other end of the first spring (65), one end of the tapered insertion block (64) fixedly connected with a connecting rope (66), and the other end of the connecting rope (66) fixedly connected with the outer wall of the spiral rod (68).
3. A high current smart safety power protection device according to claim 2, characterized in that, The switch box (6) is provided with a second spring (63) corresponding to the rotating rod (61) and capable of pushing the rotating rod (61).
4. A high current smart safety power protection device according to claim 1, characterized in that, The dustproof mechanism comprises a plurality of dustproof blocks (5) connected to the outer wall of the cover (2) and corresponding to the connecting line holes (3), a telescopic abutting plate (51) slidably connected to the inside of the dustproof block (5), a pair of third springs (55) provided in the dustproof block (5) and capable of pushing the telescopic abutting plate (51) to slide, and a wire clamping groove (54) formed in one end of the telescopic abutting plate (51) and capable of clamping the wire.
5. A high current smart safety power protection device according to claim 4, characterized in that, One end of the dustproof block (5) is provided with a connecting groove (52) through which the wire passes, and the connecting groove (52) is provided with a rubber telescopic pad (53) capable of tightly abutting the wire.
6. A high current smart safety power protection device according to claim 1, characterized in that, The top and bottom of the relay protector body (1) are provided with a plurality of wire binding blocks (4) corresponding to the connecting line holes (3) and fixedly connected thereto.
7. A high current smart safety power protection device according to claim 2, characterized in that, The upper surface of the switch box (6) is fixedly connected with a support block (7), the inside of the support block (7) is provided with a fourth spring (73), and both ends of the fourth spring (73) are fixedly connected with a connecting block (71) capable of pushing the cover (2) to automatically open.
8. A high current smart safety power protection device according to claim 7, characterized in that, One end of the connecting block (71) is fixedly connected with a telescopic abutting rod (72) capable of damping and preventing scratching of the cover (2).
9. A high current smart safety power protection device according to claim 2, characterized in that, The other end of the spiral rod (68) is fixedly connected with a handle (69) facilitating rotation.