Cable switching equipment

Abstract

The utility model relates to cable switching equipment, which comprises a box body, a first connector assembly detachably mounted on a first side of the box body, and a second connector assembly detachably mounted on a second side of the box body, the first connector assembly comprises a first frame body and a plurality of first connectors which are detachably mounted in the first frame body, and the first connectors are used for being connected to connecting ends of first cables; the second connector assembly comprises a second frame body and a plurality of second connectors which are detachably mounted in the second frame body, and the second connectors are used for being connected to the connecting ends of second cables; the first connector and the second connector are correspondingly arranged, and a connecting structure is arranged between the first connector and the second connector and serves as a power transmission structure between the first cable and the second cable. The cable switching equipment can realize smooth power supply between two cables with different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power facilities, in particular to a cable switching device. Background Art

[0002] Power support work can be carried out between nuclear power plants and power supply bureaus. Simply put, power support work is to dispatch mobile power supply vehicles to provide power support to nuclear power plants or power grids that need support.

[0003] However, the current cable connectors have a wide variety of specifications, and the cable specifications used between nuclear power plants and power grids may not be compatible, resulting in the inability to provide emergency mutual assistance and the lack of the ability to access the network in the first place.

[0004] For the case where the cable specifications are not compatible, the measures taken in the relevant technology generally include:

[0005] 1. Modify the power access box and add new adapters. However, this solution is expensive to modify, and if only one party modifies, it can only meet unilateral support.

[0006] 2. During the rescue period, the connectors of the power access box are removed and replaced with connectors of suitable specifications, but this solution increases the time for emergency access. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a cable switching device.

[0008] The technical solution adopted by the utility model to solve the technical problem is: construct a cable switching device, which includes:

[0009] A box body having a first horizontal side and a second horizontal side;

[0010] A first connector assembly is detachably mounted on the first side; the first connector assembly comprises a first frame, and a plurality of first connectors detachably mounted in the first frame, the first connectors being used to access the connection end of the first cable;

[0011] A second connector assembly is detachably mounted on the second side; the second connector assembly includes a second frame, and a plurality of second connectors detachably mounted in the second frame, the second connectors being used to access the connection end of the second cable;

[0012] The first connectors and the second connectors are arranged in one-to-one correspondence, and a connecting structure is provided between each set of corresponding first connectors and second connectors; the connecting structure is arranged in the box; and,

[0013] The connection structure is respectively connected to the first connector and the second connector; alternatively, one end of the connection structure is connected to the first connector or the second connector, and the other end is for connecting to the corresponding second cable or first cable.

[0014] In some embodiments, one of the first connector and the second connector is a connector head, which is mechanically and electrically connected to the connection structure, and the other of the first connector and the second connector is a gland for allowing a cable to pass through;

[0015] Alternatively, the first connector and the second connector are two connector heads of different specifications, and the two connector heads are respectively mechanically and electrically connected to the connection structure;

[0016] Alternatively, the first connector and the second connector are two male heads or two female heads of the same specification, and the two male heads or the two female heads are respectively mechanically and electrically connected to the connection structure.

[0017] In some embodiments, the first housing is longitudinally elongated, and is provided with a plurality of first mounting positions arranged at intervals along its length direction; the first connector assembly further includes a first mounting frame providing a mounting base for the first connector, the first mounting frame is detachably mounted at the first mounting position, and the first connector is detachably mounted at the first mounting frame;

[0018] And / or, the second housing is longitudinally elongated, and is provided with a plurality of second mounting positions arranged at intervals along its length direction; the second connector assembly further includes a second mounting frame providing a mounting base for the second connector, the second mounting frame is detachably mounted at the second mounting position, and the second connector is detachably mounted at the second mounting frame.

[0019] In some embodiments, the box body includes a box body main body with one side open, and an outer door panel mounted at the open side, and the outer door panel is used to open and close the box body;

[0020] An inner door panel is further provided in the box body main body to divide its internal space into a first compartment and a second compartment, and is used to open and close the first compartment; the inner door panel is parallel to the outer door panel, and the first compartment is farther away from the outer door panel than the second compartment;

[0021] The connection structure is arranged in the first compartment.

[0022] In some embodiments, the inner door panel is provided with a display component for indicating the on / off status of the three-phases, and the display component is electrically connected to the connection structure; and the outer door panel is provided with an observation port for observing the display component.

[0023] In some embodiments, a fixed bracket is provided inside the box body, and the fixed bracket is arranged in the first compartment and keeps a distance from the cavity wall of the first compartment;

[0024] Each of the connection structures is mounted on the fixing bracket, and an insulator is provided between each of the connection structures and the fixing bracket to prevent electrical energy from being directed to the fixing bracket.

[0025] In some embodiments, the cable switching device further comprises a grounding component connected to the box;

[0026] The grounding assembly includes a grounding bus and an external connection part. The grounding bus is installed on the fixed bracket and is electrically connected to the inner wall of the box, the fixed bracket and the external connection part respectively; the external connection part is fixed on the outer wall of the box and is used to connect to an external grounding grid or grounding rod.

[0027] In some embodiments, the connection structure is provided with a plurality of assembly holes with different apertures, providing an installation basis for connecting the cable to the connection structure.

[0028] In some embodiments, a connecting portion for electrically connecting at least two of the connecting structures is further provided inside the box.

[0029] In some embodiments, the outer wall of the box is also equipped with one of a handle, a lifting ear and a plurality of casters, or a combination of at least two of the handles, to facilitate transportation.

[0030] The implementation of the utility model has the following beneficial effects: the cable switching device of the utility model can realize smooth power supply between two cables of different specifications. At the same time, the cable switching device adopts a design in which the entire connector assembly and any connector are detachable, and has good adaptability. According to the needs of the site, the connector assembly of different specifications can be replaced, or the connector in the connector assembly can be replaced with a connector of other specifications.

[0031] Secondly, the cable switching device of the utility model can be applied to the power support work between the nuclear power plant and the power supply bureau, thereby solving the problem of being unable to achieve mutual power support due to mismatch between cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0033] Figure 1 It is a structural front view of the cable switching device of the utility model in some embodiments;

[0034] Figure 2 is a schematic structural diagram of the first connector assembly and the second connector assembly of the utility model in some embodiments;

[0035] Figure 3 yes Figure 1 The schematic diagram of the internal structure of the cable switching device shown is after omitting the outer door panel and the inner door panel;

[0036] Figure 4 It is a top view of the structure of the cable switching device in some embodiments of the utility model after omitting the top cover.

[0037] Reference numerals: cable switching device 100; box 1; first side 111; second side 112; first compartment 121; second compartment 122; box body 13; first side wall 131; second side wall 132; outer door panel 14; outer door lock 141; observation port 142; first connector assembly 2; first frame 21; first mounting position 211; first connector 22; first mounting frame 23; second connector assembly 3; second frame 3 1; second mounting position 311; second connector 32; second mounting frame 33; connection structure 4; assembly hole 41; fixing bracket 51; first pipe 511; second pipe 512; connecting portion 52; insulator 53; inner door panel 54; inner door lock 541; display assembly 55; fuse 56; connecting portion 57; grounding assembly 58; grounding bus 581; external connection portion 582; shielding portion 6; handle portion 7; hanging ear portion 8; caster 9. DETAILED DESCRIPTION

[0038] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0039] It should also be noted that, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. When one component is referred to as "on" or "under" another component, the component can be "directly" or "indirectly" located above the other component, or there may also be one or more intermediate components. The terms "first", "second", "third", etc. are only for the convenience of describing the technical solution of the present invention, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are presented in order to thoroughly understand the embodiments of the present utility model. However, those skilled in the art should clearly understand that the present utility model can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present utility model.

[0041] Please refer to Figure 1 , the present utility model constructs a cable transfer device 100, which can be applied to the power support work between a nuclear power plant and a power supply bureau to achieve smooth power supply between cables of different specifications. Of course, this cable transfer device 100 is not limited to the power support work scenario between a nuclear power plant and a power supply bureau. For other scenarios that require connecting cables of different specifications, this cable transfer device 100 can also be applied therein.

[0042] As Figure 1 shown, the cable transfer device 100 may include a box body 1, which has a first side 111 and a second side 112 in the horizontal direction. The first side 111 and the second side 112 may be oppositely arranged.

[0043] The cable switching device 100 also includes a first connector assembly 2 detachably mounted on a first side 111 of the housing 1, and a second connector assembly 3 detachably mounted on a second side 112 of the housing 1. The first connector assembly 2 is configured to be connected to one or more first cable connection ends, and the second connector assembly 3 is configured to be connected to one or more second cable connection ends. The first cable and the second cable mentioned here refer to two cables that need to be connected but have different specifications of the connection ends. The different specifications of the connection ends can be understood as different types of connection ends, or the connection ends are the same plug or socket, or the calibers of the connection ends are different.

[0044] For further information, please refer to Figure 2 The first connector assembly 2 may include a first frame 21 and a plurality of first connectors 22 detachably mounted in the first frame 21 for accessing the connection end of the first cable.

[0045] The second connector assembly 3 may include a second frame 31 and a plurality of second connectors 32 detachably mounted in the second frame 31 for connecting to the connection end of the second cable.

[0046] It should be noted that the connector is used to access the connection end of the cable, which can be understood as the connector being used to perform a plug-in connection with the connection end of the cable, or it can be understood as the connection end of the cable can pass through the connector to enter the interior of the box 1. The first connector 22 and the second connector 32 are named only to distinguish the connection with the first cable and the second cable. In the same connector assembly, the specifications of the various connectors may be the same or different, which is not limited here.

[0047] Please refer to Figure 3 , the first connector 22 and the second connector 32 are arranged in a one-to-one correspondence, and the corresponding arrangement means that there is a corresponding relationship between a single first connector 22 and a single second connector 32. Figure 3 As shown, a connection structure 4 is further provided between each corresponding first connector 22 and second connector 32, providing a basis for electrical connection between the first cable and the second cable. The connection structure 4 is arranged in the box 1, and can be mechanically and electrically connected to the first connector 22 and / or the second connector 32, or directly mechanically and electrically connected to the connection end of the cable.

[0048] For example, taking the power supply vehicle of the power supply bureau supporting the nuclear power plant as an example, in the related art, the power supply vehicle uses a cable with a quick plug, while the power access box of the nuclear power plant uses bolts to connect the cable. Based on this, through the cable transfer device 100 of the present utility model, the auxiliary cable (the first cable) of the power supply vehicle is inserted into the first connector assembly 2 of the cable transfer device 100, and one end of the on-site cable (the second cable) is connected to the on-site power access box, and the other end is connected to the inside of the cable transfer device 100 through the second connector 32 and connected to the connection structure 4, then the power supply vehicle can be electrically connected to the power access box of the nuclear power plant, and the entire access process is fast and convenient, effectively ensuring the emergency access efficiency.

[0049] In the present utility model, the design of the entire connector assembly and the detachable design of any connector are adopted. According to the different specifications of the connection ends of the cables, different specifications of connector assemblies can be replaced at any time, or the connectors in the connector assembly can be replaced with other specifications of connectors to achieve the function of multi-purpose use of one thing, and the adaptability of the cable transfer device 100 can also be improved.

[0050] Please refer to Figure 3 and Figure 4 For reference. In some embodiments, the shape of the box body 1 can be a cuboid. Of course, the shape of the box body 1 can also be other shapes such as a cylinder, which is not specifically limited here.

[0051] As Figure 3 shown, the box body 1 is used to define a chamber (not shown), which may include a box body 1 body with one side open, and an outer door panel 14 installed at the open mouth of the box body 1 body. The outer door panel 14 is used to open and close the box body 1. The open mouth can be located on the horizontal side of the box body 1 body.

[0052] The box body 1 body may include a top cover and a base arranged at longitudinal intervals, and a plurality of side walls connected between the top cover and the base. The plurality of side walls together enclose a U-shaped structure to form the open mouth of the box body 1 body.

[0053] Between the top cover and the side wall, between the base and the side wall, and between the plurality of side walls, they can be fixedly connected together by connection methods such as welding and riveting, or can be fixedly connected together by an integral molding method, which is not specifically limited here.

[0054] Among the plurality of side walls, it includes a first side wall 131 (the wall of the above-mentioned first side 111) and a second side wall 132 (the wall of the above-mentioned second side 112), which are located on the horizontal opposite sides of the box body 1 body with its open mouth as the center. The first connector assembly 2 is arranged on the first side wall 131, and the second connector assembly 3 is arranged on the second side wall 132.

[0055] A first opening (not shown) is provided on the first side wall 131. The first frame 21 can be embedded in the first opening, and the first frame 21 is installed in the first opening by a detachable installation method such as bolt connection, magnetic connection, snap connection, etc. Similarly, a second opening for embedding the second frame 31 is also provided on the second side wall 132, which will not be described in detail here.

[0056] Continue to refer to Figure 4 , at least one outer door lock 141 can be provided on the outer door panel 14 for locking the outer door panel 14 to the main body of the box 1. The outer door lock 141 can be an electronic lock or a mechanical lock; the electronic lock can include a keypad lock, a magnetic card lock, a fingerprint lock, etc.; the mechanical lock can include a pin tumbler lock, a bolt lock, a knob lock, etc.

[0057] Then look at the inside of the box 1, please refer to Figure 3 , a fixing bracket 51 for providing an installation foundation for the connection structure 4 can be provided inside the box 1.

[0058] As Figure 3 shown, the fixing bracket 51 can include a number of longitudinally elongated first pipes 511. These first pipes 511 are longitudinally arranged and are fixedly spaced apart inside the box 1; at the same time, a distance is maintained between each first pipe 511 and the chamber wall of the chamber. The connection structure 4 can be fixedly installed on the first pipes 511 by an installation method such as bolt connection, snap connection, etc.; for example, the connection structure 4 is horizontally arranged and is fixedly connected to at least two first pipes 511 at the same time.

[0059] Further optionally, the fixing bracket 51 can also include two second pipes 512 respectively horizontally fixed to the top cover and the base of the main body of the box 1. A number of first pipes 511 are fixedly installed between the two second pipes 512 by an installation method such as bolt connection, riveting, etc. Secondly, similarly, a distance is also maintained between the second pipes 512 and the chamber wall of the chamber.

[0060] Continue to refer to Figure 3 , a connection part 52 for electrically connecting between at least two connection structures 4 can also be provided inside the box 1. It can be understood that the purpose of adding the connection part 52 is for current shunting, which can avoid excessive current passing through a single cable and causing the cable to overheat.

[0061] Secondly, the connection part 52 can be set to be detachably installed on the connection structure 4; according to the magnitude of the current that each cable wants to pass through on site, the connection part 52 can be set to be single or several; each connection part 52 can electrically connect two or more connection structures 4, which can all be adjusted according to the on-site situation and will not be specifically limited here.

[0062] The surfaces of the box body 1 and the fixing bracket 51 may be provided with at least one insulating layer (not shown) to provide insulation protection. For example, insulating paint can be coated on the surfaces of the box body 1 and the fixing bracket 51 to form an insulating layer.

[0063] Reference can be made to Figure 3 Or Figure 4 , an insulator 53 can be provided between the connecting structure 4 and the fixing bracket 51 to prevent electric energy from being conducted to the fixing bracket 51. Among them Figure 3 The insulator 53 in is located behind the connecting structure 4. In order to show the insulator 53, it is represented by a dotted line.

[0064] Subsequently, please refer to Figure 4 , an inner door panel 54 that divides the chamber into a first compartment 121 and a second compartment 122 can also be provided inside the box body 1; the inner door panel 54 is arranged in parallel with the outer door panel 14, and the horizontal side of the inner door panel 54 is installed inside the box body 1 through a hinged structure to realize the opening and closing of the first compartment 121. The size of the inner door panel 54 is smaller than that of the outer door panel 14 to facilitate opening the inner door panel 54 inside the box body 1.

[0065] The first compartment 121 is relatively farther from the outer door panel 14 than the second compartment 122 and is used as a space for accommodating the connecting structure 4. On the one hand, users need to open the inner door panel 54 to reach into the first compartment 121, which can further improve the insulation level and safety guarantee; on the other hand, it can prevent pollutants from the outside of the box body 1 from invading the first compartment 121, further improving the IP level and the cleanliness of the space where the connecting structure 4 is located.

[0066] As Figure 4 shown, one or more inner door locks 541 can also be provided on the inner door panel 54 for locking the inner door panel 54 inside the box body 1. The inner door lock 541 can be an electronic lock or a mechanical lock; the electronic lock can include a keyboard lock, a magnetic card lock, a fingerprint lock, etc.; the mechanical lock can include a pin tumbler lock, a bolt lock, a knob lock, etc.

[0067] A display component 55 for indicating the on-off status of three phases can also be provided on the inner door panel 54, and the display component 55 can be electrically connected to the connecting structure 4. Correspondingly, refer back to Figure 1 , an observation port 142 is provided at a position on the outer door panel 14 opposite to the display component 55 to observe the on-off status of three phases outside the box body 1. Further optionally, a transparent observation window (not shown) is also installed at the observation port 142 to maintain the cleanliness of the inside of the box body 1. In some embodiments, the display component 55 can include three LED lights, which are respectively used to indicate the on-off status of three phases; the light emitting direction of each LED light is set towards the outer door panel 14.

[0068] Regarding the connector assembly, reference can be made toFigure 2 The first housing 21 of the first connector assembly 2 can be longitudinally elongated, and a plurality of first mounting positions 211 are provided thereon at intervals along its length direction. Among them, a single first connector 22 can be mounted in a single first mounting position 211.

[0069] In some embodiments, as Figure 2 shown, the first connector assembly 2 may further include a first mounting frame 23 that provides a basis for mounting the first connector 22 on the first mounting position 211, which can help more connectors of different specifications to be mounted on the first mounting position 211. The first mounting frame 23 is detachably mounted within the first mounting position 211. For example, the first mounting frame 23 can be mounted within the first mounting position 211 by means of bolt connection, magnetic connection, snap connection, etc. The first connector 22 is detachably mounted within the first mounting frame 23, and the mounting method can be bolt connection, magnetic connection, snap connection, etc.

[0070] Since the structure of the second connector assembly 3 is basically the same as that of the first connector assembly 2, it will not be described in detail here. It should be clear that, as Figure 2 shown, the second housing 31 of the second connector assembly 3 may also be provided with a plurality of second mounting positions 311, and each second mounting position 311 is configured with a second mounting frame 33.

[0071] Please continue to refer to Figure 3 , the first connector 22 can be a connector. Understandably, the connector is a general term for male and female connectors, and it can be used to represent one of the male and female connectors. For example, the first connector 22 can be the male or female head of a quick-connect connector. Correspondingly, a connecting portion 57 for electrically connecting the conductive end of the connector to the connecting structure 4 is also provided within the housing 1, and the number of the connecting portions 57 is the same as the number of the connectors. In some embodiments, the connecting portion 57 can be longitudinally elongated, with one end connected to the pin of the connector and the other end connected to the connecting structure 4. Optionally, the connecting portion 57 can be a copper busbar.

[0072] The second connector 32 can be a gland, and the connecting end of the second cable can extend into the housing 1 through the orifice of the gland and be directly connected to the connecting structure 4. Preferably, a movably connected flap can be provided at the orifice of the gland, and the flap can be used to block the orifice of the gland, effectively preventing contaminants outside the housing 1 from invading the housing 1. When in application, the second preset connecting end can push open the flap when passing through the gland and enter the housing 1.

[0073] It is understandable that the above is only an example of the types of the first connector 22 and the second connector 32 in some embodiments, and does not specifically limit their types; the first connector 22 can also be a gland, and the second connector 32 can also be a joint. Secondly, the first connector 22 and the second connector 32 can also be two-pin plugs / sockets, three-pin plugs / sockets, etc. In addition, the first connector 22 and the second connector 32 can have different specifications, and the different specifications can be understood as different types / calibers of connectors. The first connector 22 and the second connector 32 can also have the same specifications, for example, they are both male or female.

[0074] The entire connector assembly is configured to be detachable from the box 1 and installable on the box 1; the connector and the mounting frame can also be used as a connector kit, which can be detachable from the frame and installable on the frame. Then, when it is put into use, multiple sets of connector assemblies can be prepared, and connector assemblies that meet the specifications can be replaced according to the on-site connection requirements; multiple sets of connector kits can also be prepared, and connector kits that meet the specifications can be replaced according to the on-site connector requirements; and the mounting frame can also be replaced with an adapted connector; these operations can be performed according to on-site requirements, so as to ensure that the emergency power supply can be connected smoothly at the first time and the efficiency of emergency access can be guaranteed.

[0075] Looking at the four aspects of the connection structure, you can refer to Figure 3 The connection structure 4 can be a longitudinal copper bar with at least one assembly hole 41 provided thereon, providing a basis for direct connection with the connection end of the cable. For example, the connection end of the cable is a wiring copper nose, which can pass through the gland and extend into the box body 1, and then the wiring copper nose of the cable is locked on the assembly hole 41 by bolts. In order to adapt to the wiring copper noses of various cables, a plurality of assembly holes 41 with different apertures can be provided on the connection structure 4.

[0076] For some additional options, please refer to Figure 3 In some embodiments, the cable switching device 100 may further include a grounding component 58 connected to the box body 1 to prevent electric shock accidents.

[0077] The grounding assembly 58 may include a grounding busbar 581 and an external connection part 582. The grounding busbar 581 is disposed inside the box 1 and is electrically connected to the box 1 body, the outer door panel 14, the structure connected to the connection structure 4 in the fixing bracket 51, and the external connection part 582 respectively; the external connection part 582 is fixed to the outside of the box 1, and can be connected to the grounding grid or grounding rod outside the cable switching device 100 to connect to the earth. Further optionally, the external connection part 582 can be connected to the external grounding grid or grounding rod through a grounding wire clamp.

[0078] Continue to refer Figure 3In some embodiments, a fuse 56 may be provided inside the box 1, and the fuse 56 is electrically connected between the display component 55 and the connection structure 4. When the current is overloaded, the connection between the display component 55 and the connection structure 4 may be disconnected by the fuse 56, so that the display component 55 stops working, thereby achieving the purpose of feedback. Further optionally, the fuse 56 may be installed on the fixing bracket 51 inside the box 1.

[0079] For reference Figure 1 In some embodiments, a shielding portion 6 is further provided above the first interface assembly and the second interface assembly to shield against rain, thereby providing protection for the cable switching device 100 to operate outdoors in rainy days. Optionally, the top cover of the box body 1 is respectively protruded from the side wall located on the first side 111 and the side wall located on the second side 112 on the first side 111 and the second side 112, and the structure where the top cover protrudes from the first side 111 and the second side 112 forms two shielding portions 6.

[0080] You can continue to refer to Figure 1 In some embodiments, considering the convenience of emergency transportation, the box body 1 may be provided with one of a handle 7, a lifting ear 8 and a plurality of casters 9 or a combination of at least two of the handles 7, a lifting ear 8 and a plurality of casters 9 to facilitate the transportation of the cable switching device 100. The provision of the casters 9 can free up the distance between the box body 1 and the ground to facilitate forklift transportation.

[0081] Further optionally, if Figure 1 As shown, a plurality of casters 9 can be installed at the bottom of the box body 1, wherein the casters 9 can be fixed wheels or universal wheels. For example, the bottom of the box body 1 is provided with two fixed wheels arranged side by side and two universal wheels arranged side by side to achieve flexible movement on site. Further optionally, a foot brake is also provided at the universal wheel to limit the rolling of the universal wheel to limit the movement of the cable switching device 100.

[0082] Two handles 7 can be provided, which are respectively installed on two horizontal sides of the box body 1 with the opening as the center. For example, the two handles 7 are respectively installed on the first side wall 131 and the second side wall 132 of the box body 1.

[0083] Two lifting ears 8 can be provided, which are respectively installed on two horizontal sides of the box body 1 with the opening as the center. For example, the two lifting ears 8 are respectively installed on the first side wall 131 and the second side wall 132 of the box body 1.

[0084] In summary, the cable switching device 100 of the utility model can solve the problem of being unable to achieve mutual power support due to mismatch between cables. Compared with the related art, the utility model can include the following advantages: first, the cost is low, and there is no need to modify the access box on site; second, the connection is convenient, and there is no need to disassemble the access box under emergency conditions; third, the adaptability is strong, that is, the device can support the smooth connection between cables of various specifications; fourth, the support party and the demand party support each other through the device, rather than only unilateral support.

[0085] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should belong to the scope covered by the claims of the utility model.

Claims

1. A cable switching device, characterized in that: It includes: A box body (1) having a first side (111) and a second side (112) in a horizontal direction; A first connector assembly (2) is detachably mounted on the first side (111); the first connector assembly (2) comprises a first frame (21), and a plurality of first connectors (22) detachably mounted in the first frame (21), the first connectors (22) being used to connect to the connection end of the first cable; A second connector assembly (3) is detachably mounted on the second side (112); the second connector assembly (3) comprises a second frame (31) and a plurality of second connectors (32) detachably mounted in the second frame (31), wherein the second connectors (32) are used to connect to the connection end of the second cable; The first connectors (22) and the second connectors (32) are arranged in one-to-one correspondence, and a connecting structure (4) is provided between each set of corresponding first connectors (22) and second connectors (32); the connecting structure (4) is arranged in the box body (1); and, The connection structure (4) is connected to the first connector (22) and the second connector (32) respectively; or, one end of the connection structure (4) is connected to the first connector (22) or the second connector (32), and the other end is used to connect to the corresponding cable.

2. The cable switching device according to claim 1, characterized in that: One of the first connector (22) and the second connector (32) is a joint, the joint is mechanically and electrically connected to the connection structure (4), and the other of the first connector (22) and the second connector (32) is a cable gland for allowing a cable to pass through; Alternatively, the first connector (22) and the second connector (32) are two connectors of different specifications, and the two connectors are respectively mechanically and electrically connected to the connection structure (4); Alternatively, the first connector (22) and the second connector (32) are two male connectors or two female connectors of the same specification, and the two male connectors or the two female connectors are respectively mechanically and electrically connected to the connection structure (4).

3. The cable switching device according to claim 1, characterized in that: The first frame (21) is in a longitudinal shape and is provided with a plurality of first mounting positions (211) arranged at intervals along its length direction; the first connector assembly (2) further comprises a first mounting frame (23) providing a mounting base for the first connector (22); the first mounting frame (23) is detachably mounted at the first mounting position (211), and the first connector (22) is detachably mounted at the first mounting frame (23); And / or, the second frame (31) is longitudinally elongated and is provided with a plurality of second mounting positions (311) spaced apart along its length; the second connector assembly (3) further comprises a second mounting frame (33) providing a mounting base for the second connector (32), the second mounting frame (33) being detachably mounted at the second mounting position (311), and the second connector (32) being detachably mounted at the second mounting frame (33).

4. The cable switching device according to claim 1, characterized in that: The box (1) comprises a box (1) body with an opening on one side, and an outer door panel (14) installed at the opening, wherein the outer door panel (14) is used to realize the opening and closing of the box (1); The box body (1) is also provided with an inner door panel (54) for dividing its inner space into a first compartment (121) and a second compartment (122), and is used to realize the opening and closing of the first compartment (121); the inner door panel (54) is arranged in parallel with the outer door panel (14), and the first compartment (121) is farther away from the outer door panel (14) than the second compartment (122); The connection structure (4) is arranged in the first compartment (121).

5. The cable switching device according to claim 4, characterized in that: The inner door panel (54) is provided with a display component (55) for indicating the on / off status of the three phases, and the display component (55) is electrically connected to the connection structure (4); the outer door panel (14) is provided with an observation port (142) for observing the display component (55).

6. The cable switching device according to claim 4, characterized in that: A fixed bracket (51) is provided inside the box body (1); the fixed bracket (51) is arranged in the first compartment (121) and maintains a distance from the cavity wall of the first compartment (121); Each of the connection structures (4) is mounted on the fixed bracket (51), and an insulator (53) is provided between each of the connection structures (4) and the fixed bracket (51) to prevent electrical energy from being directed to the fixed bracket (51).

7. The cable switching device according to claim 6, characterized in that: The cable switching device further comprises a grounding component (58) connected to the box (1); The grounding assembly (58) comprises a grounding busbar (581) and an external connection part (582); the grounding busbar (581) is mounted on the fixing bracket (51) and is electrically connected to the inner wall of the box (1), the fixing bracket (51) and the external connection part (582) respectively; the external connection part (582) is fixed on the outer wall of the box (1) and is used to connect to an external grounding grid or grounding rod.

8. The cable switching device according to claim 1, characterized in that: The connection structure (4) is provided with a plurality of assembly holes (41) of different diameters, which provide an installation basis for connecting the cable to the connection structure (4).

9. The cable switching device according to claim 1, characterized in that: A connecting portion (52) for electrically connecting at least two of the connecting structures (4) is also provided inside the box (1).

10. The cable switching device according to claim 1, characterized in that: The outer wall of the box body (1) is also provided with one of a handle portion (7), a lifting ear portion (8) and a plurality of casters (9) or a combination of at least two of the components to facilitate transportation.

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