Assembly type current transformer with port protection structure

Abstract

The invention discloses an assembly type current transformer with a port protection structure, which comprises a current transformer body, a bottom plate and a port arranged at the upper end of the current transformer body, and is characterized in that a mounting mechanism drives the current transformer body to form a dismounting structure at the upper end of the bottom plate; the installation mechanisms are symmetrically arranged on the left side and the right side of the lower end of the current transformer body, the bunching mechanisms are symmetrically arranged on the front side and the rear side of the current transformer body, each bunching mechanism is composed of a supporting frame, a lower bunching plate, an upper bunching plate and an auxiliary block, and the protection assembly is arranged on the outer side of a port in the upper end of the current transformer body. According to the assembly type current transformer with the port protection structure, electric wires connected with the current transformer body can be limited, so that the arrangement of the electric wires is more regular, disordered knotting and winding are prevented, and the port at the upper end of the current transformer body can be well protected in combination with the arrangement of the protection assembly.

Description

Technical Field

[0001] The present invention relates to the technical field related to current transformers, and in particular to an assembled current transformer with a port protection structure. Background Art

[0002] Current transformer refers to an electrical device that can convert large current into small current. It is widely used in the monitoring, control and protection of power systems. Its basic working principle is based on the principle of electromagnetic induction. It converts large current into small current through the ratio of the number of turns of the primary winding and the secondary winding. It has the advantages of high measurement accuracy, wide measurement range, small size, light weight and low power consumption.

[0003] For example, announcement number CN220232860U discloses a current transformer with a protective structure, including a mounting plate, a mounting hole, a protective shell, a sealing plate, a sliding mechanism and a limiting mechanism, wherein the mounting hole is provided on the mounting plate, the protective shell is provided on the mounting plate, the sealing plate is connected to the protective shell through the sliding mechanism, the sliding mechanism includes a mounting block, a slide groove and a slider, the mounting block is provided on the protective shell, the slide groove is provided on the mounting block, one end of the slider is provided on the slide groove, and the other end of the slider is connected to the sealing plate, the limiting mechanism includes a hinge assembly and a movable block, the hinge assembly is provided on the top of the protective shell, and one end of the movable block is connected to the protective shell through the hinge assembly. The utility model provides a current transformer with a protective structure, which solves the problem that the current equipment has no protective device;

[0004] For example, announcement number CN217881142U discloses a current transformer with a locking mechanism, including a current transformer body, a mounting frame welded to the bottom end of the current transformer body, a fixing screw hole opened on the outer wall of the mounting frame, a partition mechanism riveted to the inner wall of the current transformer body, and a locking mechanism installed on the outer wall of the current transformer body. This current transformer with a locking mechanism can be squeezed and locked according to the line inserted into the inner side of the current transformer through the cooperation of the connection frame, the connection hole, the locking rod, the rotating block and the locking clamp, and the locking clamp can be adjusted to the telescopic position according to the size of the line, and lines of different sizes can be locked. At the same time, the connection hole and the locking rod are connected by a threaded connection method, which is convenient for the staff to adjust the telescopic position of the locking clamp. The structure is simple and easy to operate.

[0005] However, the existing current transformer still has the following shortcomings:

[0006] 1. The existing current transformer is not convenient for quick positioning when docking and installing with the base plate, and most of them are fixed and limited only by bolts, which are easy to rust during long-term use, making the later disassembly and maintenance operations inconvenient and the assembly inconvenient;

[0007] 2. The existing current transformer lacks a limiting mechanism for the wires connected to the current transformer, and the wires are relatively messy. Especially when the current transformer is damaged and needs to be repaired, the wires are easily entangled after the current transformer and the wires are disassembled, which is not conducive to the connection and assembly between the wires and the current transformer after the subsequent maintenance is completed;

[0008] 3. When protecting the existing current transformer, the current transformer is often directly placed in an external protective cover, but there is a lack of protection mechanism at the port of the current transformer.

[0009] Therefore, we propose an assembled current transformer with a port protection structure to solve the above problems. Summary of the invention

[0010] The object of the present invention is to provide an assembled current transformer with a port protection structure to solve the problem proposed in the above-mentioned background technology that it is inconvenient to quickly position the device when docking and installing it with a base plate, and most of the time, the device is fixed and limited only by bolts, and the bolts are prone to rust during long-term use, and the subsequent disassembly and maintenance operations are inconvenient, and the assembly is inconvenient. The wires connected to the current transformer lack a limiting mechanism, and the wires are relatively messy. Especially when the current transformer is damaged and needs repair, the current transformer and the wires are easily entangled after disassembly, which is not conducive to the connection and assembly of the wires and the current transformer after the subsequent maintenance is completed. When protecting the current transformer, the current transformer is often directly placed in an external protective cover, and there is a lack of a protection mechanism at the port of the current transformer.

[0011] To achieve the above object, the present invention provides the following technical solutions: an assembled current transformer with a port protection structure, comprising a current transformer body, a bottom plate and a port arranged at the upper end of the current transformer body;

[0012] Also includes:

[0013] A mounting mechanism, wherein the mounting mechanism drives the current transformer body to form a disassembly structure at the upper end of the bottom plate, and the mounting mechanism is symmetrically arranged on the left and right sides of the lower end of the current transformer body, and the mounting mechanism includes a mounting block, a mounting cylinder, a mounting rod, a mounting column, a mounting cap and a mounting groove;

[0014] A wire harness mechanism, which is symmetrically arranged on the front and rear sides of the current transformer body, and is composed of a support frame, a lower wire harness plate, an upper wire harness plate and an auxiliary block;

[0015] A protection component is arranged on the outside of the upper end port of the current transformer body, and the protection component includes a protection cover, a protection groove and a fixing column.

[0016] Preferably, the current transformer body is placed on the upper end of the base plate, and mounting holes are provided on both left and right sides of the base plate. The upper end of the base plate is fixedly connected to a mounting rail, and the mounting rail slot is connected to the lower end of the current transformer body.

[0017] Preferably, the outer side surface of the mounting rail is fixedly connected to a mounting cylinder, and the middle part of the mounting cylinder is telescopically connected to a mounting rod for limiting, the upper end of the mounting rod is engaged in the middle part of the mounting block, and the mounting block is respectively fixedly connected to the left and right sides of the lower end of the current transformer body.

[0018] Preferably, a mounting column is fixedly connected to the lower end of the mounting rod, and an up-and-down sliding structure is formed between the mounting column and the mounting tube, and a mounting cap for locking and limiting is threadedly connected to the outer surface of the mounting column.

[0019] Preferably, the mounting cap is snap-connected in the mounting groove, and the mounting groove is opened on the outer side of the upper end of the mounting tube.

[0020] Preferably, the support frame is respectively engaged and connected to the front and rear sides of the current transformer body, and the support frame and the current transformer body are connected and limited by hexagonal bolts.

[0021] Preferably, the upper end of the support frame is fixedly connected to a lower wire harness plate, and the upper end of the lower wire harness plate is hingedly connected to an upper wire harness plate, the left side of the upper wire harness plate is fixedly connected to an auxiliary block, and the auxiliary block is plugged into the upper end of the movable plate.

[0022] Preferably, a connecting rod is fixedly connected to the lower end of the movable plate, and a first spring is sleeved on the outer surface of the connecting rod, and the connecting rod is telescopically connected to the upper left end of the lower wiring harness plate.

[0023] Preferably, the protective cover is arranged outside the upper end port of the current transformer body, and a plurality of protective grooves are provided on both the front and rear sides of the protective cover, and the protective grooves are arranged correspondingly to the port;

[0024] The left and right ends of the protective cover are slidably connected with fixed columns, and the fixed columns are respectively fixedly connected to the left and right sides of the upper end of the current transformer body, and the upper and lower ends of the outer side of the protective cover are provided with fixed grooves for limiting.

[0025] Preferably, a connecting plate is sleeved on the middle part of the fixing column, and a second spring is arranged between the connecting plate and the fixing column, and the upper and lower ends of the connecting plate are slidably connected with connecting blocks, and the connecting blocks are respectively fixedly connected to the upper and lower ends of the fixing column;

[0026] Among them, the inner side surface of the connecting plate is fixedly connected with a positioning block, and the positioning block is inserted in the fixing groove, the upper side surface of the positioning block fits with the inner wall of the upper end of the fixing groove, and the positioning block forms an elastic structure through the connecting plate and the fixing column.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the assembled current transformer with a port protection structure can quickly install and position the current transformer body on the bottom plate through the setting of the installation mechanism, and can limit the wires connected to the current transformer body through the setting of the wire harness mechanism, so that the arrangement of the wires is more regular, and it is convenient to dock and install the wires with the current transformer body more conveniently after the maintenance of the current transformer body, so as to prevent disordered knotting and entanglement, and combined with the setting of the protection component, it can play a good protective effect on the port at the upper end of the current transformer body;

[0028] 1. A mounting mechanism is provided, which includes a mounting block, a mounting tube, a mounting rod, a mounting column, a mounting cap and a mounting groove. Through the setting of the mounting mechanism, the current transformer body can be installed on the bottom plate in a very fast manner;

[0029] 2. A wire harness mechanism is provided, which is symmetrically arranged at the front and rear ends of the current transformer body, and includes a support frame, a lower wire harness plate, an upper wire harness plate and an auxiliary block. Through the setting of the wire harness mechanism, it is convenient to clamp and position the wires, prevent the wires from being tangled, and make the arrangement of the wires more regular;

[0030] 3. A protective component is provided, which includes a protective cover, a protective groove and a fixing column. The protective component cover is arranged on the outer side of the upper end port of the current transformer body, which can provide good protection for the port. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0032] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0033] Figure 3 It is a side view structural schematic diagram of the present invention;

[0034] Figure 4 This is an overall schematic diagram of the structure of the current transformer body, the base plate and the mounting rail of the present invention;

[0035] Figure 5 It is a schematic diagram of the enlarged structure of point A in the figure of the present invention;

[0036] Figure 6 This is a schematic diagram of the exploded structure of the mounting tube, mounting rod and mounting block of the present invention;

[0037] Figure 7 It is a schematic diagram of the explosion structure of the current transformer body, the support frame, the lower wire harness plate and the hexagonal bolts of the present invention;

[0038] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0039] Fig. 9 It is a structural schematic diagram of the upper and lower wire harness plates of the present invention in an open state;

[0040] Fig.10 This is a schematic diagram of the exploded structure of the lower harness plate, movable plate and connecting rod of the present invention;

[0041] Fig.11 It is a schematic diagram of the structure of the protective cover and the upper end port of the current transformer body in the open state of the present invention;

[0042] Fig.12 This is a schematic diagram of the overall structure of the protection component of the present invention;

[0043] Fig.13 For the present invention Figure 1 The enlarged structural diagram at C in the middle;

[0044] Fig.14 It is a schematic diagram of the exploded structure of the connecting plate, connecting block and positioning block of the present invention.

[0045] In the figure: 1. current transformer body; 2. bottom plate; 3. mounting rail; 4. mounting mechanism; 5. mounting block; 6. mounting tube; 7. mounting rod; 8. mounting column; 9. mounting cap; 10. mounting groove; 11. wiring harness mechanism; 12. support frame; 13. lower wiring harness plate; 14. upper wiring harness plate; 15. auxiliary block; 16. hexagonal bolt; 17. movable plate; 18. connecting rod; 19. first spring; 20. protective assembly; 21. protective cover; 22. protective groove; 23. fixing column; 24. fixing groove; 25. connecting plate; 26. second spring; 27. connecting block; 28. positioning block. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-Figure 14 , the present invention provides the following technical solutions:

[0048] Embodiment 1: In order to solve the problems in the prior art that it is inconvenient to quickly position the device when docking and installing it with the base plate 2, and most of the time, the device is fixed and limited only by bolts, and the bolts are prone to rust during long-term use, and the later disassembly and maintenance operations are inconvenient, and the assembly is inconvenient, the present embodiment adopts the following technical scheme: an assembled current transformer with a port protection structure, which is provided with a current transformer body 1, a base plate 2, a mounting rail 3 and a mounting mechanism 4. The current transformer body 1 is placed on the base plate 2, and a connection port is provided at the upper end of the base plate 2. Mounting holes are provided on both sides of the base plate 2. The upper end of the base plate 2 is fixedly connected to the mounting rail 3, and the mounting rail 3 slot is connected to the lower end of the current transformer body 1, and the mounting mechanism 4 drives the current transformer body 1 to be mounted on the base plate 2. The upper end of the mounting rail 3 constitutes a disassembly structure, the mounting mechanism 4 is symmetrically arranged on the left and right sides of the lower end of the current transformer body 1, and the mounting mechanism 4 includes a mounting block 5, a mounting cylinder 6, a mounting rod 7, a mounting column 8, a mounting cap 9 and a mounting groove 10. The outer side surface of the mounting rail 3 is fixedly connected with the mounting cylinder 6, and the middle part of the mounting cylinder 6 is telescopically connected with the mounting rod 7 for limiting. The upper end of the mounting rod 7 is engaged in the middle of the mounting block 5, and the mounting block 5 is respectively fixedly connected to the left and right sides of the lower end of the current transformer body 1, and the lower end of the mounting rod 7 is fixedly connected with the mounting column 8, and the mounting column 8 and the mounting cylinder 6 form an up and down sliding structure. The outer surface of the mounting column 8 is threadedly connected with a mounting cap 9 for locking and limiting. The mounting cap 9 is engaged and connected in the mounting groove 10, and the mounting groove 10 is opened on the outer side of the upper end of the mounting cylinder 6;

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, during installation, first push the current transformer body 1 forward from the rear side of the base plate 2, slide between the base plate 2 and the mounting rail 3, and place the current transformer body 1 on the base plate 2. When the mounting block 5 moves to the position above the corresponding position of the mounting rod 7, move the mounting column 8 upward, slide between the mounting column 8 and the mounting tube 6, and the mounting column 8 pushes the mounting rod 7 to move upward, so that the mounting rod 7 is inserted in the middle of the mounting block 5, and then rotate the mounting cap 9 threadedly connected to the outer surface of the mounting column 8, so that the mounting cap 9 is engaged in the mounting groove 10 at the upper end of the mounting tube 6, and the mounting column 8 and the mounting tube 6 are limited, so as to facilitate the downward movement between the mounting block 5 and the mounting rod 7. Through the setting of the mounting mechanism 4, the current transformer body 1 and the base plate 2 can be connected and installed very quickly and stably, and the current transformer body 1 can also be disassembled and maintained and replaced by performing the reverse operation of the above operation;

[0050] Embodiment 2: In order to solve the problem that the wires connected to the current transformer lack a limiting mechanism in the prior art, the wires are relatively messy, especially when the current transformer is damaged and needs to be repaired, the wires are easily entangled after the current transformer and the wires are disassembled, which is not conducive to the connection and assembly between the wires and the current transformer after the subsequent maintenance is completed. Therefore, this embodiment adopts the following technical scheme: an assembled current transformer with a port protection structure is provided with a wire binding mechanism 11, a hexagonal bolt 16, a movable plate 17, a connecting rod 18 and a first spring 19, the wire binding mechanism 11 is symmetrically arranged on the front and rear sides of the current transformer body 1, and the wire binding mechanism 11 is supported by The support frame 12, the lower wire harness plate 13, the upper wire harness plate 14 and the auxiliary block 15 are composed of the support frame 12, the support frame 12 is respectively engaged and connected to the front and rear sides of the current transformer body 1, and the support frame 12 and the current transformer body 1 are connected and limited by hexagonal bolts 16, the upper end of the support frame 12 is fixedly connected with the lower wire harness plate 13, and the upper end of the lower wire harness plate 13 is hingedly connected with the upper wire harness plate 14, the left side of the upper wire harness plate 14 is fixedly connected with the auxiliary block 15, and the auxiliary block 15 is plugged into the upper end of the movable plate 17, the lower end of the movable plate 17 is fixedly connected with a connecting rod 18, and the outer surface of the connecting rod 18 is sleeved with a first spring 19, and the connecting rod 18 is telescopically connected to the upper left end of the lower wire harness plate 13;

[0051] like Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, the support frame 12 is inserted into the front and rear sides of the middle part of the current transformer body 1, and then the current transformer body 1 and the support frame 12 are connected and limited by the hexagonal bolts 16. Then, the wires connected to the current transformer body 1 are placed on the upper end of the lower wire harness plate 13, and the movable plate 17 is pulled to the left, and the movable plate 17 drives the connecting rod 18 to slide between the lower wire harness plate 13, and the connecting rod 18 squeezes the first spring 19, so that the first spring 19 is elastically deformed, and then the upper wire harness plate 14 is flipped downward, and the upper wire harness plate 14 is downwardly engaged on the wires, so as to facilitate the limiting of the wires and prevent the wires from being tangled or The wires are wound so that they are arranged more regularly. After the upper wire harness plate 14 is flipped downward, the movable plate 17 is directly released. At this time, the first spring 19 restores its elastic deformation and pushes the connecting rod 18 to slide with the lower wire harness plate 13. The connecting rod 18 drives the movable plate 17 to be directly sleeved on the outside of the auxiliary block 15, so as to facilitate the limiting of the upper wire harness plate 14 and the lower wire harness plate 13. In addition, when the current transformer body 1 needs to be maintained, after the wires are removed from the current transformer body 1, the setting of the mounting groove 10 can have a good limiting effect on the wires. After the maintenance is completed, it is convenient to quickly connect and install the wires with the current transformer body 1.

[0052] Embodiment 3: In order to solve the problem that in the prior art, when protecting the current transformer, the current transformer is often directly placed in an external protective cover 21, and there is a lack of a protective mechanism at the port of the current transformer, the present embodiment adopts the following technical scheme: an assembled current transformer with a port protection structure is provided with a protective component 20, a fixing groove 24, a connecting plate 25, a second spring 26, a connecting block 27 and a positioning block 28, the protective component 20 is arranged on the outer side of the upper end port of the current transformer body 1, the protective component 20 includes a protective cover 21, a protective groove 22 and a fixing column 23, the protective cover 21 is provided on the outer side of the upper end port of the current transformer body 1, and a plurality of protective grooves 22 are provided on the front and rear sides of the protective cover 21, and the protective grooves 22 are provided between the protective grooves 22 and the port. Correspondingly, the left and right ends of the protective cover 21 are slidably connected with fixed columns 23, and the fixed columns 23 are respectively fixedly connected to the left and right sides of the upper end of the current transformer body 1, and the upper and lower ends of the outer side of the protective cover 21 are provided with fixed grooves 24 for limiting, and the middle part of the fixed column 23 is sleeved with a connecting plate 25, and a second spring 26 is provided between the connecting plate 25 and the fixed column 23, and the upper and lower ends of the connecting plate 25 are slidably connected with connecting blocks 27, and the connecting blocks 27 are respectively fixedly connected to the upper and lower ends of the fixed column 23, and the inner side of the connecting plate 25 is fixedly connected with a positioning block 28, and the positioning block 28 is inserted in the fixing groove 24, and the upper side of the positioning block 28 is matched with the inner wall of the upper end of the fixing groove 24, and the positioning block 28 forms an elastic structure through the connecting plate 25 and the fixing column 23, such as Figure 1, Fig.10 , Fig.11 , Fig.12 , Fig.13 and Fig.14 As shown, after the connection between the wire and the port at the upper end of the current transformer body 1 is completed, the protective cover 21 is directly pressed downward, and the protective cover 21 slides with the fixing column 23, and the protective cover 21 squeezes the positioning block 28, so that the positioning block 28 pushes the connecting plate 25 and the connecting block 27 to slide, and the connecting plate 25 squeezes the second spring 26, and the second spring 26 is elastically deformed, and the positioning block 28 moves out of the fixing groove 24 at the lower end of the protective cover 21, thereby releasing the protective cover 21 and the fixing column 23. The protective cover 21 is limited in the space between the two ends, and then the protective cover 21 moves downward to the outside of the port, so that the protective cover 21 drives the protective groove 22 to directly engage with the outside of the wire, thereby being able to provide good protection for the connection position between the port and the wire. At this time, the second spring 26 restores its elastic deformation, pushing the connecting plate 25 to drive the positioning block 28 to be directly plugged into the fixing groove 24 at the upper end of the outer side surface of the protective cover 21, thereby facilitating the alignment between the protective cover 21 and the fixing column 23, and fixing the protective cover 21 to the upper end of the current transformer body 1.

[0053] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled current transformer with a port protection structure, comprising a current transformer body (1), a bottom plate (2) and a port arranged at the upper end of the current transformer body (1); It is characterized in that Also includes: A mounting mechanism (4), the mounting mechanism (4) drives the current transformer body (1) to form a disassembly structure at the upper end of the base plate (2), the mounting mechanism (4) is symmetrically arranged on the left and right sides of the lower end of the current transformer body (1), and the mounting mechanism (4) comprises a mounting block (5), a mounting cylinder (6), a mounting rod (7), a mounting column (8), a mounting cap (9) and a mounting groove (10); A wire harness mechanism (11), wherein the wire harness mechanism (11) is symmetrically arranged on the front and rear sides of the current transformer body (1), and the wire harness mechanism (11) is composed of a support frame (12), a lower wire harness plate (13), an upper wire harness plate (14) and an auxiliary block (15); A protection component (20) is arranged on the outside of an upper end port of a current transformer body (1), and comprises a protection cover (21), a protection groove (22) and a fixing column (23).

2. The assembled current transformer with a port protection structure according to claim 1, characterized in that: The current transformer body (1) is placed on the upper end of a base plate (2), and mounting holes are provided on both left and right sides of the base plate (2). The upper end of the base plate (2) is fixedly connected to a mounting rail (3), and the mounting rail (3) is slotted and connected to the lower end of the current transformer body (1).

3. The assembled current transformer with a port protection structure according to claim 2, characterized in that: The outer side surface of the mounting rail (3) is fixedly connected to a mounting cylinder (6), and the middle part of the mounting cylinder (6) is telescopically connected to a mounting rod (7) for limiting position, the upper end of the mounting rod (7) is engaged in the middle part of the mounting block (5), and the mounting block (5) is respectively fixedly connected to the left and right sides of the lower end of the current transformer body (1).

4. The assembled current transformer with a port protection structure according to claim 3, characterized in that: The lower end of the mounting rod (7) is fixedly connected to a mounting column (8), and an up-and-down sliding structure is formed between the mounting column (8) and the mounting tube (6). The outer surface of the mounting column (8) is threadedly connected to a mounting cap (9) for locking and limiting.

5. The assembled current transformer with a port protection structure according to claim 4, characterized in that: The mounting cap (9) is snap-fitted into the mounting groove (10), and the mounting groove (10) is disposed on the outer side of the upper end of the mounting tube (6).

6. The assembled current transformer with a port protection structure according to claim 1, characterized in that: The support frame (12) is respectively engaged and connected to the front and rear sides of the current transformer body (1), and the support frame (12) and the current transformer body (1) are connected and limited by hexagonal bolts (16).

7. The assembled current transformer with a port protection structure according to claim 6, characterized in that: The upper end of the support frame (12) is fixedly connected to a lower wire harness plate (13), and the upper end of the lower wire harness plate (13) is hingedly connected to an upper wire harness plate (14), and the left side of the upper wire harness plate (14) is fixedly connected to an auxiliary block (15), and the auxiliary block (15) is plugged into the upper end of the movable plate (17).

8. The assembled current transformer with a port protection structure according to claim 7, characterized in that: The lower end of the movable plate (17) is fixedly connected to a connecting rod (18), and the outer surface of the connecting rod (18) is sleeved with a first spring (19). The connecting rod (18) is telescopically connected to the upper left end of the lower harness plate (13).

9. The assembled current transformer with a port protection structure according to claim 1, characterized in that: The protective cover (21) is arranged outside the upper end port of the current transformer body (1), and a plurality of protective grooves (22) are provided on both the front and rear sides of the protective cover (21), and the protective grooves (22) are arranged correspondingly to the port; The left and right ends of the protective cover (21) are slidably connected to fixed columns (23), and the fixed columns (23) are respectively fixedly connected to the left and right sides of the upper end of the current transformer body (1), and the upper and lower ends of the outer side surface of the protective cover (21) are provided with fixed grooves (24) for limiting.

10. The assembled current transformer with a port protection structure according to claim 9, characterized in that: A connecting plate (25) is sleeved on the middle part of the fixing column (23), and a second spring (26) is arranged between the connecting plate (25) and the fixing column (23); upper and lower ends of the connecting plate (25) are slidably connected to connecting blocks (27), and the connecting blocks (27) are respectively fixedly connected to the upper and lower ends of the fixing column (23); The inner side surface of the connecting plate (25) is fixedly connected with a positioning block (28), and the positioning block (28) is inserted into the fixing groove (24), the upper side surface of the positioning block (28) fits with the inner wall of the upper end of the fixing groove (24), and the positioning block (28) forms an elastic structure through the connecting plate (25) and the fixing column (23).

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