An emergency mobile medium voltage power generation car quick access box

Abstract

The application discloses an emergency mobile medium-voltage power car quick access box applied to the field of power car access boxes, wherein a protection unit and a fixing unit are arranged between a power distribution unit and a cable, when the connecting position of the power distribution unit and the cable is instantaneously pulled by strong external force, the locking wing block for fixing is firstly broken, so that the fixing between the power distribution unit and the cable is failed, under the action of the external force, the cable is automatically separated, even if an accident occurs, the staff can replace the protection unit and the fixing unit quickly, so that the power distribution unit quickly returns to the working state, in the process of normal working of the power distribution unit, the connection between the power distribution unit and the cable is not easy to fail through the cooperation of the protection unit and the fixing unit, and when the power distribution unit and the cable are subjected to strong external force due to an accident, the damaged position of the power distribution unit and the cable is transferred from the power distribution unit and the cable to the replaceable protection unit and the fixing unit, so that the loss is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of generator truck access boxes, and particularly to a quick access box for emergency mobile medium-voltage generator trucks. Background Technology

[0002] In modern urban power grids, power supply reliability is paramount. When substations, distribution lines, or critical power equipment experience power outages due to planned maintenance, sudden failures, natural disasters, or other reasons, emergency power supply plans must be activated quickly. Mobile medium-voltage generators, as an important emergency power source, can directly supply power to medium-voltage distribution network feeders, restoring power to critical loads such as hospitals, data centers, transportation hubs, and large communities.

[0003] Chinese patent CN221428332U discloses an emergency power generation vehicle access box. When the gear rotates, the water baffle inside the access box extends, thus blocking rain and avoiding the risk of electric shock caused by rain during prolonged power connection. When the water baffle slides out, attention can be paid to the rotation direction of the limiting plate. When the water baffle extends, it ensures that the limiting plate and the side wall of the cover are in contact, thereby limiting the cover during wiring and preventing the cover from swinging in the wind and affecting the wiring.

[0004] Chinese patent CN219144946U discloses an emergency power access box that uses a clamping mechanism to clamp the connection between the generator vehicle cable and the first terminal. When the generator vehicle cable is pulled by the outside, the connection between the cable and the first terminal will not loosen or fall off, and there is no need to fix it with bolts. When the emergency power access box is not in use, the connecting cable can be wound on the winding post to avoid the connecting cables from being piled up and tangled together.

[0005] Existing generator truck access boxes are typically used for the rapid startup and emergency power supply of critical power equipment. Therefore, rapid connection and anti-disconnection functions have become the main requirements for generator truck access boxes. However, in actual use, since the access box is set on a mobile generator truck, if the generator truck is started before the power supply cable is completely disconnected after the emergency power supply is completed, it is very easy for the interface of the generator box to be pulled between the interface and the cable, causing irreversible damage to the interface of the generator box or the cable joint, resulting in serious emergency losses. Summary of the Invention

[0006] 1. Technical problems to be solved

[0007] The core of this invention lies in setting up a protection unit and a fixing unit between the power distribution unit and the cable, which reduces the likelihood of damage or failure of the connection end when the power distribution unit and the cable are subjected to significant external force. Simultaneously, adding accessories to the fixing unit further increases the stability of the connection between the protection unit and the fixing unit, while reducing the possibility of accidental electric shock to the power distribution unit.

[0008] 2. Technical Solution

[0009] To solve the above problems, the present invention adopts the following technical solution.

[0010] An emergency mobile medium-voltage generator vehicle quick access box includes a quick access box, which includes a mounting shell with an installation chamber. A power distribution body is fixedly connected to the bottom plate of the installation chamber. Multiple shaft-shaped heads are fixedly connected to the outer wall of the power distribution body. A quick power outlet matching the shaft-shaped head is inserted into the end of the multiple shaft-shaped heads away from the power distribution body. A cable is inserted into the end of the quick power outlet away from the shaft-shaped head.

[0011] The cable includes electrically connected wires and connectors. The connector is inserted into a quick-connect socket. A fixing unit and a protection unit are fixedly connected to the ends of the quick-connect socket and the connector, respectively. The fixing unit includes a fixing ring threadedly connected to the quick-connect socket. A locking groove is formed on the inner wall of the fixing ring. A pair of mounting holes communicating with the locking groove are formed at the lower end of the fixing ring. A pair of anti-slip strips are fixedly attached to the lower inner wall of the locking groove. The protection unit includes a protection ring threadedly connected to the connector. A pair of symmetrical locking wing blocks are fixedly connected to the outer wall of the protection ring. The size of the locking wing blocks is smaller than the mounting holes. An elastic rubber block is fixedly connected to the lower end of the locking wing blocks. By setting up the protection unit and the fixing unit between the power distribution unit and the cable, the connection end is less likely to be damaged or fail when subjected to large external forces.

[0012] Furthermore, the bottom plate of the installation chamber has multiple guide holes that match the position of the shaft head. The end of the cable away from the connector passes through the guide holes and extends to the outside of the installation chamber. When the cable is subjected to external tension, the guide holes can convert the tension into a direction perpendicular to the lower inner wall of the installation chamber, aligning it with the central axis of the quick-connect power socket as much as possible, thereby reducing the possibility of damage to the power distribution unit and the cable when the cable is pulled.

[0013] Furthermore, the sum of the thicknesses of the locking wing block and the elastic rubber block is equal to the thickness of the vertical direction of the locking groove. The locking wing block is made of wear-resistant elastic rubber, which makes the connection between the protection unit and the fixing unit more stable and less prone to loosening.

[0014] Furthermore, a slanted groove is cut at the end of the elastic rubber block away from the locking wing block, and the depth of the slanted groove is greater than the height of the anti-slip strip, so that when the workers are fixing the power distribution unit and the cable, they can adjust the anti-slip strip to the middle position of the elastic rubber block.

[0015] Furthermore, an elastic adhesive is fixedly connected between the protective ring and the locking wing block. The elastic adhesive is located on the upper side of the protective ring and the locking wing block. When the locking wing block breaks due to external force, the elastic adhesive will pull the broken locking wing block out of the locking groove together, eliminating the need for staff to insert their fingers into the protective unit to remove the locking wing block and the elastic adhesive during subsequent work.

[0016] Furthermore, the elastic adhesive uses a countersunk design to reduce wear between the elastic adhesive and the inner wall of the locking groove when the power distribution unit and cable are connected, making the locking wing less likely to fall off and fail.

[0017] Furthermore, the elastic adhesive includes a base fabric layer made of woven elastic fibers. The base fabric layer is connected to the protective ring and the locking wing block with fixing adhesive, so that the elastic adhesive is not easily pulled and fails in the event of a breakage of the locking wing block.

[0018] Meanwhile, a counterweight sleeve of matching size to the protective ring is fitted on the outer side of the fixing ring. A tension spring is fixedly connected between the upper inner wall of the counterweight sleeve and the fixing ring. When the power distribution unit and the cable are connected, the counterweight sleeve will exert a downward force on the protective ring under the weight of the counterweight sleeve and the tension spring in a stretched state, thereby increasing the friction between the elastic rubber block and the locking groove. This makes it difficult for the protective unit and the fixing unit to move relative to each other during normal operation, and it is less likely to cause the connection failure of the power distribution unit and the cable.

[0019] Furthermore, the counterweight sleeve is made of insulating material, and the opening diameter at the lower end of the counterweight sleeve is less than 10cm. After the cable is separated from the power distribution unit, there is a certain height difference between the lower end of the counterweight sleeve and the locking groove, which protects the quick-access power socket. At the same time, due to the size of the counterweight sleeve, it is not easy for workers to put their hands into the quick-access power socket, thus reducing the risk of electric shock.

[0020] Furthermore, the protective ring and locking wing block are respectively provided with matching mounting slots and mounting holes. A fixed magnetic sheet is fixedly connected in the mounting slot, and a matching early warning unit is inserted into the mounting hole. The early warning unit includes a matching threaded head and a fixed head. A connecting hose is fixedly connected between the threaded head and the fixed head. The threaded head is threaded at the end furthest from the mounting hole. A magnetic block is fixedly connected at the end of the fixed head furthest from the threaded head, and the magnetic block attracts the fixed magnetic sheet. A photosensitive unit and a beam generating unit are fixedly connected at the ends of the threaded head and the fixed head that are close to each other, and the photosensitive unit and the beam generating unit are located on the central axis of the mounting hole.

[0021] 3. Beneficial Effects

[0022] Compared with the prior art, the advantages of this invention are:

[0023] This solution involves installing a protection unit and a fixing unit between the power distribution unit and the cable. When the connection between the power distribution unit and the cable is subjected to a strong external force, the locking wing used for fixing will break first, causing the fixing between the power distribution unit and the cable to fail. Under the action of external force, the cable will automatically detach. Even in the event of an accident, the power distribution unit can be quickly restored to working status by replacing the protection unit and the fixing unit. During normal operation of the power distribution unit, the cooperation between the protection unit and the fixing unit makes the connection between the power distribution unit and the cable less prone to failure. In the event of an accident where the power distribution unit and the cable are subjected to a strong external force, the damaged parts of the power distribution unit and the cable will be transferred from themselves to the replaceable protection unit and fixing unit, greatly reducing the losses caused by the accident.

[0024] The addition of a counterweight and tension spring enhances the protective function, making it less likely for workers to experience electric shock during the connection of the power distribution unit and cables, and when the quick-connect power socket is not connected to a cable, thus increasing the safety of using the quick-connect power socket.

[0025] Finally, an early warning unit was introduced to provide "preventive protection" in environments with high power stability, reducing the risk of accidental breakage of the locking wing and minimizing fluctuations in the power environment. Attached Figure Description

[0026] Figure 1 This is a front view of the medium-voltage generator car quick-connect box of the present invention;

[0027] Figure 2 This is a side view of the medium-voltage generator car quick-connect box of the present invention;

[0028] Figure 3 This is a schematic diagram of the connection between the quick power outlet and the cable of the present invention;

[0029] Figure 4 This is a side sectional view of the quick-connect power socket and cable connection of the present invention;

[0030] Figure 5 This is a schematic diagram of the cable and protection unit of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the fixing unit of the present invention. Figure 1 ;

[0032] Figure 7 A side view of the medium-voltage generator car quick access box of the present invention after removing the front door and side door;

[0033] Figure 8 This is a schematic diagram of the structure of the fixing unit of the present invention. Figure 2 ;

[0034] Figure 9 This is a cross-sectional structural diagram of the fixing unit of the present invention;

[0035] Figure 10 This is a schematic diagram showing the connection changes between the fixed unit and the quick-connect power socket of the present invention;

[0036] Figure 11 This is a schematic diagram of the cable and protection unit according to the third embodiment of the present invention;

[0037] Figure 12 This is a schematic cross-sectional view of the locking wing block of the protection unit of the present invention.

[0038] Figure 13 This is a schematic diagram of the cable of the present invention without the use of the protection unit and the fixing unit.

[0039] Explanation of the labels in the diagram:

[0040] 1. Quick Access Box, 101. Mounting Housing, 102. Mounting Chamber, 103. Guide Hole, 104. Base, 2. Side Door, 3. Front Door, 4. Power Distribution Unit, 401. Power Distribution Body, 402. Shaft Head, 403. Quick Power Supply Socket, 5. Cable, 501. Cable, 502. Connector, 503. Compensation Unit, 6. Protection Unit, 601. Protection Ring, 602. Locking Wing Block, 603. Elastic Rubber Block, 604. Elastic Adhesive Sticker, 7. Fixing Unit, 701. Fixing Ring, 702. Locking Slot, 703. Mounting Hole, 704. Anti-slip Strip, 705. Counterweight Sleeve, 706. Tension Spring, 8. Warning Unit, 801. Threaded Head, 802. Fixing Head, 803. Connecting Hoses, 804. Photosensitive Unit, 805. Beam Generating Unit, 806. Magnetic Block, 9. Fixing Magnetic Sheet. Detailed Implementation

[0041] The technical solutions will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0042] Example 1:

[0043] Please see Figures 1-6An emergency mobile medium-voltage generator quick access box includes a quick access box 1, which includes a mounting shell 101. A base 104 is fixedly connected to the lower end of the mounting shell 101. An installation chamber 102 is opened on the mounting shell 101. A front frame and a side frame are opened on the front and side of the installation chamber 102, respectively. The installation chamber 102 is connected to the outside through the front frame and the side frame, respectively. A front door 3 and a side door 2 that match the installation chamber 102 are hinged in the front frame and the side frame, respectively. A power distribution body 401 is fixedly connected to the bottom plate of the installation chamber 102. Multiple shaft heads 402 are fixedly connected to the outer wall of the power distribution body 401. A quick power socket 403 that matches the installation chamber 402 is inserted into the end of the multiple shaft heads 402 away from the power distribution body 401. A cable 5 is inserted into the end of the quick power socket 403 away from the shaft head 402.

[0044] Cable 5 includes a cable 501 and a connector 502 that are electrically connected to each other. The connector 502 is inserted into a quick-connect power socket 403. A fixing unit 7 and a protection unit 6 are fixedly connected to the ends of the quick-connect power socket 403 and the connector 502 respectively. The fixing unit 7 includes a fixing ring 701 that is threadedly connected to the quick-connect power socket 403. A locking groove 702 is provided on the inner wall of the fixing ring 701. A pair of mounting holes 703 communicating with the locking groove 702 are provided at the lower end of the fixing ring 701. A pair of anti-slip strips 704 are fixed on the lower inner wall of the locking groove 702, and the line connecting the two anti-slip strips 704 is perpendicular to the line connecting the two mounting holes 703. The protection unit 6 includes a protection ring 601 that is threadedly connected to the connector 502. A pair of symmetrical locking wing blocks 602 are fixedly connected to the outer wall of the protection ring 601. The size of the locking wing blocks 602 is smaller than the size of the mounting holes 703. An elastic rubber block 603 is fixedly connected to the lower end of the locking wing blocks 602.

[0045] In this embodiment, the power distribution unit 4 and the cable 5 are quickly connected through the protection unit 6 and the fixing unit 7: After aligning the locking wing block 602 with the mounting hole 703, insert it and rotate the cable 5 until the resistance increases significantly. At this time, the elastic rubber block 603 contacts the anti-slip strip 704. Continue to rotate the cable 5 by a small angle of 2-5° so that the elastic rubber block 603 is located on the upper side of the anti-slip strip 704, thus realizing the connection between the power distribution unit 4 and the cable 5. At this time, due to the cooperation between the anti-slip strip 704 and the elastic rubber block 603, there is a large friction between the protection unit 6 and the fixing unit 7. During the operation of the power distribution unit 4, even if there is frequent vibration, the protection unit 6 and the fixing unit 7 are not likely to rotate relative to each other, and the connection between the power distribution unit 4 and the cable 5 is not likely to fail or fall off. It is easy to maintain the continuous operation of the power distribution unit 4. In addition, the tight contact between the protection unit 6 and the fixing unit 7 also increases the sealing effect between the power distribution unit 4 and the cable 5.

[0046] After the power distribution unit 4 has finished working, the staff only needs to manually rotate the cable 5 so that the locking wing block 602 matches the position of the mounting hole 703, and pull down the cable 5 and the protection unit 6 to achieve quick disassembly of the power distribution unit 4 and the cable 5.

[0047] When the power distribution unit 4 has finished working, and the staff starts and moves the generator car without promptly disassembling the power distribution unit 4 and cable 5, the connection between the power distribution unit 4 and cable 5 is instantly subjected to a strong external force. When there is a risk of damage to the connection between the power distribution unit 4 and cable 5, the locking wing block 602 used for fixing will break first, causing the fixing between the power distribution unit 4 and cable 5 to fail. Under the action of external force, cable 5 will automatically fall off. Even in the event of an accident, the staff can quickly replace the protection unit 6 and fixing unit 7 to restore the power distribution unit 4 to its working state. During the normal operation of the power distribution unit 4, the cooperation of the protection unit 6 and fixing unit 7 makes the connection between the power distribution unit 4 and cable 5 less prone to failure. In the event of an accident, when the power distribution unit 4 and cable 5 are subjected to a strong external force, the damaged parts of the power distribution unit 4 and cable 5 are transferred from themselves to the replaceable protection unit 6 and fixing unit 7, greatly reducing the losses caused by the accident.

[0048] The mounting chamber 102 has multiple guide holes 103 on its bottom plate that match the shaft head 402. The end of the cable 501 away from the connector 502 passes through the guide hole 103 and extends to the outside of the mounting chamber 102. When the cable 501 is subjected to external tension, the guide hole 103 can make the tension perpendicular to the lower inner wall of the mounting chamber 102, and coincide with the central axis of the quick power socket 403 as much as possible, thereby reducing the possibility of damage to the power distribution unit 4 and the cable 5 when they are pulled.

[0049] The sum of the thicknesses of the locking wing block 602 and the elastic rubber block 603 is equal to the vertical thickness of the locking groove 702. The locking wing block 602 is made of wear-resistant elastic rubber, such as polyurethane rubber, which makes the connection between the protection unit 6 and the fixing unit 7 more stable and less prone to loosening. The thickness and material selection of the locking wing block 602 are designed after experimental testing, so that the locking wing block 602 is not prone to breakage or failure during the normal installation and disassembly of the quick power socket 403 and the cable 5. It will only break when subjected to large external pulling. The end of the elastic rubber block 603 away from the locking wing block 602 has a slanted groove, and the depth of the slanted groove is greater than the height of the anti-slip strip 704. This makes the rotational resistance of the cable 5 and the protection unit 6 smaller when the elastic rubber block 603 and the anti-slip strip 704 just come into contact. This makes it easier for the staff to fix the power distribution unit 4 and the cable 5. The anti-slip strip 704 can be located in the middle of the elastic rubber block 603, which increases the fixing effect of the elastic rubber block 603 and the anti-slip strip 704.

[0050] An elastic adhesive strip 604 is fixedly connected between the protective ring 601 and the locking wing block 602. The elastic adhesive strip 604 is located on the upper side of the protective ring 601 and the locking wing block 602. When the locking wing block 602 breaks due to external force pulling the protective unit 6, the locking wing block 602 remains connected to the protective ring 601 through the elastic adhesive strip 604. As the protective ring 601 falls off along with the cable 5, it pulls the broken locking wing block 602 out of the locking groove 702. This eliminates the need for personnel to insert their fingers into the protective unit 6 to remove the locking wing block 602 and the elastic adhesive strip 603 during subsequent work, reducing the risk of electric shock during routine maintenance and replacement. The elastic adhesive strip 604 adopts a countersunk design, i.e., it is fixedly embedded. Inside the protective ring 601 and locking wing block 602, the wear between the elastic adhesive 604 and the inner wall of the locking groove 702 is reduced when the power distribution unit 4 and the cable 5 are connected, making the locking wing block 602 less likely to fall off and fail. The elastic adhesive 604 includes a base fabric layer, which is woven from elastic fibers. The base fabric layer is connected to the protective ring 601 and the locking wing block 602 with fixing adhesive. When the locking wing block 602 breaks, the relative distance between the protective ring 601 and the locking wing block 602 will change to a certain extent. The elastic adhesive 604, which is made of elastic material, can adapt to the corresponding changes, making it less likely to fall off from one end of the protective ring 601 or the locking wing block 602, and making the elastic adhesive 604 less likely to fail.

[0051] In particular, the protection unit 6 and the fixing unit 7 adopt a modular and standardized design, which can be used as a standard accessory package for different models of generator cars or power distribution equipment. Only the interface size needs to be changed, which improves the universality and market potential of the protection unit 6 and the fixing unit 7.

[0052] Example 2:

[0053] Please see Figures 7-10 The outer side of the fixing ring 701 is fitted with a counterweight sleeve 705 whose size matches that of the protective ring 601. A tension spring 706 is fixedly connected between the upper inner wall of the counterweight sleeve 705 and the fixing ring 701. When the power distribution unit 4 and the cable 5 are connected, under the weight of the counterweight sleeve 705 and the tension spring 706 in a stretched state, the counterweight sleeve 705 will exert a downward force on the protective ring 601, thereby increasing the friction between the elastic rubber block 603 and the inner wall of the locking groove 702, so that the protective unit 6 and the fixing unit 7 are not easy to move relative to each other during normal operation, and the connection between the power distribution unit 4 and the cable 5 is not easy to fail.

[0054] The counterweight sleeve 705 is made of insulating material, and the lower opening diameter of the counterweight sleeve 705 is 9cm. After the cable 5 is separated from the power distribution unit 4, under the weight of the counterweight sleeve 705 and the action of the tension spring 706 in the tension state, the counterweight sleeve 705 will move further down, so that there is a certain height difference between the lower end of the counterweight sleeve 705 and the locking groove 702. When the quick power socket 403 is not connected to the cable 5, it protects the quick power socket 403. Due to the size setting of the counterweight sleeve 705, it is not easy for the staff to put their hands into the quick power socket 403, and it is not easy to cause electric shock accidents.

[0055] Compared to Embodiment 1, this embodiment further improves the fixing unit 7. Although it increases the cost and complexity of using the fixing unit 7, it does not reduce the protective effect of the core of the protection unit 6 and the fixing unit 7 against external force. At the same time, it increases the protection function, making it less likely for workers to have electric shock accidents when connecting the power distribution unit 4 and the cable 5, and when the quick power socket 403 is not connected to the cable 5, thus increasing the safety of using the quick power socket 403.

[0056] Example 3:

[0057] Please see Figure 11 and Figure 12 The protective ring 601 and the locking wing block 602 are respectively provided with matching mounting grooves and mounting holes. A fixed magnetic sheet 9 is fixedly connected in the mounting groove, and a matching early warning unit 8 is inserted into the mounting hole. The early warning unit 8 includes a matching threaded head 801 and a fixed head 802. A connecting hose 803 is fixedly connected between the threaded head 801 and the fixed head 802. The threaded head 801 is threadedly connected to the end of the mounting hole away from 601. A magnetic block 806 is fixedly connected to the end of the fixed head 802 away from the threaded head 801, and the magnetic block 806 is attracted to the fixed magnetic sheet 9. A photosensitive unit 804 and a beam generating unit 805 are fixedly connected to the ends of the threaded head 801 and the fixed head 802 respectively, and the photosensitive unit 804 and the beam generating unit 805 are located on the central axis of the mounting hole.

[0058] In this embodiment, the electrical units, including but not limited to the photosensitive unit 804 and the beam generating unit 805, are equipped with control units and power supply units, and are signal-connected to the control unit of the generator vehicle. The specific connection method can be Bluetooth connection, etc. When the generator vehicle starts, the photosensitive unit 804 and the beam generating unit 805 are activated to detect the relative position of the protective ring 601 and the locking wing block 602. When the protective ring 601 and the locking wing block 602 undergo relative displacement and deformation, the landing point of the beam generated by the beam generating unit 805 on the photosensitive unit 804 will change, and the corresponding detection data will be transmitted to the generator vehicle control unit. The generator vehicle control unit will then generate an alarm to remind the driver and staff to handle the situation in a timely manner.

[0059] In this embodiment, an early warning unit 8 is introduced, which further increases the cost of using the protection unit 6. However, in actual power rescue work, there are environments with high power stability, such as hospitals. Although the combination of the protection unit 6 and the fixing unit 7 can effectively protect the power distribution unit 4, the detached cable 5 will cause power grid outages and power fluctuations. Even if it can be repaired quickly, it can easily affect power safety.

[0060] This embodiment achieves "preventive protection," reducing the risk of accidental breakage of the locking wing block 602 and minimizing fluctuations in the power environment, thus forming a two-tiered protection effect with the protective structure of Embodiment 1.

[0061] Example 4:

[0062] Please see Figure 13 When the staff believes that the protection unit 6 and the fixing unit 7 are not necessary between the power distribution unit 4 and the cable 5, or the cost of using the protection unit 6 and the fixing unit 7 is insufficient, an insulating compensation unit 503 can be fixedly connected to the upper end of the connector 502 to compensate for the height difference between the connector 502 and the quick power socket 403, so that the connection part of the connector 502 is not easily exposed, and it is not easy to cause electric shock accidents, nor is it easy to cause excessive local oxidation of the connector 502.

[0063] In Examples 2 and 3, the counterweight sleeve 705, tension spring 706, and compensation unit 503 are all optional components. Those skilled in the art can make reasonable selections based on actual needs and costs to meet usage requirements.

[0064] The above description is merely a preferred embodiment of the present invention; it encompasses all the protection scope of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solutions and improved concepts of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A quick-connect box for an emergency mobile medium-voltage generator vehicle, comprising a quick-connect box (1), characterized in that: The quick access box (1) includes a mounting shell (101), on which a mounting chamber (102) is provided. A power distribution body (401) is fixedly connected to the bottom plate of the mounting chamber (102). Multiple shaft heads (402) are fixedly connected to the outer wall of the power distribution body (401). A quick power socket (403) matching itself is inserted into one end of the multiple shaft heads (402) away from the power distribution body (401). A cable (5) is inserted into one end of the quick power socket (403) away from the shaft head (402). The cable (5) includes a cable (501) and a connector (502) that are electrically connected to each other. The connector (502) is inserted into a quick-connect power socket (403). A fixing unit (7) and a protection unit (6) are fixedly connected to the ends of the quick-connect power socket (403) and the connector (502) respectively. The fixing unit (7) includes a fixing ring (701) that is threadedly connected to the quick-connect power socket (403). A locking groove (702) is provided on the inner wall of the fixing ring (701). The lower end of the unit (6) is provided with a pair of mounting holes (703) that communicate with the locking groove (702). A pair of anti-slip strips (704) are fixed on the lower inner wall of the locking groove (702). The protection unit (6) includes a protective ring (601) that is threadedly connected to the connector (502). A pair of mutually symmetrical locking wing blocks (602) are fixedly connected on the outer wall of the protective ring (601). The size of the locking wing blocks (602) is smaller than that of the mounting holes (703). An elastic rubber block (603) is fixedly connected to the lower end of the locking wing blocks (602). The sum of the thicknesses of the locking wing block (602) and the elastic rubber block (603) is equal to the thickness of the locking groove (702) in the vertical direction. The locking wing block (602) is made of wear-resistant elastic rubber. The outer side of the fixing ring (701) is fitted with a counterweight sleeve (705) whose size matches that of the protective ring (601). A tension spring (706) is fixedly connected between the upper inner wall of the counterweight sleeve (705) and the fixing ring (701). The counterweight sleeve (705) is made of insulating material, and the lower opening diameter of the counterweight sleeve (705) is less than 10cm.

2. The emergency mobile medium-voltage generator quick-connect box according to claim 1, characterized in that: The mounting chamber (102) has multiple guide holes (103) on its bottom plate that match the position of the shaft head (402). The end of the cable (501) away from the connector (502) passes through the guide holes (103) and extends to the outside of the mounting chamber (102).

3. The emergency mobile medium-voltage generator quick-connect box according to claim 1, characterized in that: The elastic rubber block (603) has a slanted groove at the end away from the locking wing block (602), and the depth of the slanted groove is greater than the height of the anti-slip strip (704).

4. The emergency mobile medium-voltage generator quick-connect box according to claim 1, characterized in that: An elastic adhesive patch (604) is fixedly connected between the protective ring (601) and the locking wing block (602), and the elastic adhesive patch (604) is located on the upper side of the protective ring (601) and the locking wing block (602).

5. The emergency mobile medium-voltage generator quick-connect box according to claim 4, characterized in that: The elastic adhesive (604) features a countersunk design.

6. The emergency mobile medium-voltage generator quick-connect box according to claim 4, characterized in that: The elastic adhesive (604) includes a base fabric layer, which is woven from elastic fibers, and the base fabric layer is connected to the protective ring (601) and the locking wing block (602) with fixing adhesive.

7. The emergency mobile medium-voltage generator quick-connect box according to claim 1, characterized in that: The protective ring (601) and the locking wing block (602) are respectively provided with matching mounting grooves and mounting holes. A fixed magnetic sheet (9) is fixedly connected in the mounting groove. A matching early warning unit (8) is inserted into the mounting hole. The early warning unit (8) includes a matching threaded head (801) and a fixed head (802). A connecting hose (803) is fixedly connected between the threaded head (801) and the fixed head (802). The threaded head (801) is threadedly connected to the opening at the end away from the mounting hole. A magnetic block (806) is fixedly connected to the end of the fixed head (802) away from the threaded head (801), and the magnetic block (806) is attracted to the fixed magnetic sheet (9). A photosensitive unit (804) and a beam generating unit (805) are fixedly connected to the ends of the threaded head (801) and the fixed head (802) that are close to each other. The photosensitive unit (804) and the beam generating unit (805) are located on the central axis of the mounting hole.

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