High-voltage current transformer convenient to install

Abstract

The utility model belongs to the field of electrical equipment, and particularly relates to a high-voltage current transformer convenient to install, which comprises a transformer main body, a connecting frame is assembled on the transformer main body, the connecting frame is provided with a second assembling hole and a second inserting hole, the connecting frame is provided with a fixing block, the fixing block is provided with a guide rod, and the guide rod is provided with a sliding block. The sliding block is provided with a bottom block, the bottom block is provided with a check block, the check block is provided with a top block, the top block is provided with a sliding block, the check block is provided with an inserting rod, the inserting rod is provided with a positioning hole, the bottom block is provided with a vertical rod, the vertical rod is provided with a limiting block, the vertical rod is provided with a movable block, and the movable block is provided with a positioning rod. According to the high-voltage current transformer convenient to install, through cooperation of the positioning rods and the inserting rods, the problems that an existing high-voltage current transformer is tedious to disassemble and assemble from a connecting frame, operation of maintenance personnel is inconvenient, the working efficiency is reduced, and later maintenance and repair of the high-voltage current transformer are affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment, specifically a high-voltage current transformer that is easy to install. Background Technology

[0002] A high-voltage current transformer (CT) is an electrical device that transforms a large current into a smaller current proportional to its rated current. Its main function is to provide measuring instruments and relay protection devices with a small current signal proportional to the primary current, thereby enabling the monitoring, control, and protection of the power system. In high-voltage power systems, the primary current can reach thousands or even tens of thousands of amperes, making direct measurement of such large currents extremely difficult and dangerous. Current transformers can convert large currents into standard 5A or 1A currents, allowing measuring instruments and protection devices to operate safely and accurately.

[0003] However, existing high-voltage current transformers still have the following problems during use:

[0004] Existing high-voltage current transformers are fixedly mounted on the connecting frame with bolts. This makes the disassembly and assembly of the high-voltage current transformers from the connecting frame cumbersome, causing inconvenience to maintenance personnel, reducing work efficiency, and affecting the later maintenance and repair of the high-voltage current transformers. Therefore, it is necessary to develop a high-voltage current transformer that is easy to install for use in the field of existing electrical equipment. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, current high-voltage current transformers are fixedly mounted on the connecting frame with bolts. This makes it cumbersome to disassemble and install the high-voltage current transformer from the connecting frame, causing inconvenience to maintenance personnel, reducing work efficiency, and affecting the later maintenance and repair of the high-voltage current transformer. This utility model proposes a high-voltage current transformer that is easy to install.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: a high-voltage current transformer that is easy to install, comprising a transformer body, a connecting frame mounted on the bottom of the transformer body, a plurality of second mounting holes being provided through the connecting frame, a plurality of second insertion holes being provided on the end face of the connecting frame, the second insertion holes communicating with the second mounting holes, a plurality of sets of fixing blocks being fixedly mounted on the bottom of the connecting frame, each set of fixing blocks having two blocks, each pair of fixing blocks being located on both sides of the second mounting holes, a guide rod being fixedly mounted between the two fixing blocks in each set, and each guide rod being movably mounted with... There are sliding blocks, and a base block is fixedly assembled between the two sliding blocks. The base block is located below the connecting frame. A stop block is fixedly assembled at one end of the base block. The stop block is located on one side of the end face of the connecting frame. A top block is fixedly assembled on the stop block. The top block is located above the connecting frame. Slider blocks are fixedly assembled at both ends of the top block. Insert rods are symmetrically fixedly assembled on the stop block. The insert rods are located between the base block and the top block. Positioning holes are provided through the insert rods. A vertical rod is fixedly assembled at the bottom of the base block. A limit block is fixedly assembled at the bottom of the vertical rod. A movable block is movably assembled on the vertical rod. A positioning rod is fixedly assembled on the movable block.

[0007] Preferably, the positioning rods are movably assembled with the bottom block and the top block respectively. Each positioning rod is provided with a connecting hole, and the positioning rods are inserted into the positioning holes on the two insert rods. The connecting holes are located above the top block.

[0008] Preferably, each of the top blocks is provided with a traction groove, and each traction groove is fixedly equipped with an installation tube. One end of each installation tube is movably equipped with an adjusting rod, one end of which moves inside the installation tube, and the other end of each adjusting rod is fixedly equipped with a toggle block.

[0009] Preferably, each of the actuating blocks is fixedly equipped with a stop bar, which is inserted into the connecting hole on the positioning rod. The mounting tube and the adjusting rod are equipped with telescopic springs, and the two ends of the telescopic springs are fixedly assembled with the actuating block and the traction groove, respectively.

[0010] Preferably, an L-shaped connecting plate is symmetrically fixedly mounted on the main body of the current transformer. The L-shaped connecting plate is provided with a plurality of first mounting holes and a plurality of first insertion holes are provided on the end face of the L-shaped connecting plate. The first insertion holes are connected to the first mounting holes. A plurality of sets of sliding blocks are fixedly mounted on the L-shaped connecting plate. Each set of sliding blocks consists of two blocks, and the two sliding blocks in each set are located on both sides of the first mounting hole.

[0011] Preferably, the sliding block is inserted into the slider, at which point the first mounting hole and the second mounting hole coincide, and the insertion rod can be inserted into the first insertion hole and the second insertion hole.

[0012] The advantages of this utility model are:

[0013] This invention places an L-shaped connecting plate on the transformer body onto a connecting frame. A bottom block moves along a guide rod on a fixed block via a sliding block, causing a stop block on the bottom block to move towards the connecting frame until two insertion rods are inserted into the first and second insertion holes respectively. The positioning holes on the insertion rods are located in the first and second assembly holes, respectively, coinciding. A toggle block is then activated, causing the stop rod to move. One end of the adjusting rod moves inside the mounting tube, stretching the telescopic spring. At this point, a movable block moves on the vertical rod, allowing the positioning rod to engage with the positioning holes on the two insertion rods. The positioning rods move in the first and second assembly holes respectively, with the connecting hole on the positioning rod located on one side of the stop rod. Releasing the toggle block allows the stop rod to engage with the connecting hole on the positioning rod under the elastic force of the telescopic spring, thus fixing the transformer body to the connecting frame. This facilitates the disassembly and assembly of the transformer body on the connecting frame, improving installation efficiency and facilitating subsequent maintenance and repair by maintenance personnel. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the assembly structure of the high-voltage current transformer body and the connecting frame of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the main body and connecting frame of the high-voltage current transformer of this utility model.

[0017] Figure 3 This is a schematic diagram of the assembly structure of the connecting frame and stabilizing mechanism of this utility model;

[0018] Figure 4 This is a cross-sectional view of the stabilizing mechanism of this utility model.

[0019] In the picture:

[0020] 10. Current transformer body; 11. L-shaped connecting plate; 12. Connecting frame; 13. Stop block;

[0021] 20. Sliding block; 21. First mounting hole; 22. First insertion hole; 23. Second mounting hole;

[0022] 30. Second insertion hole; 31. Fixing block; 32. Guide rod; 33. Sliding block;

[0023] 40. Bottom block; 41. Top block; 42. Slider; 43. Insert rod;

[0024] 50. Positioning hole; 51. Vertical rod; 52. Limiting block; 53. Movable block;

[0025] 60. Positioning rod; 61. Traction groove; 62. Mounting tube; 63. Adjusting rod;

[0026] 70. Actuating block; 71. Stop bar; 72. Telescopic spring; 73. Connecting hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] The following is in conjunction with the appendix Figure 1 —4. Further detailed description of this application:

[0029] This application discloses a high-voltage current transformer that is easy to install. (Refer to...) Figure 2 - Figure 4A high-voltage current transformer that is easy to install includes a transformer body 10. A connecting frame 12 is mounted on the bottom of the transformer body 10. Multiple second mounting holes 23 are provided through the connecting frame 12. Multiple second insertion holes 30 corresponding to the second mounting holes 23 are provided on the end face of the connecting frame 12. Multiple sets of fixing blocks 31 are fixedly mounted on the bottom of the connecting frame 12. Each set of fixing blocks 31 consists of two blocks. Each pair of fixing blocks 31 is located on both sides of the second mounting holes 23. A guide rod 32 is fixedly mounted between the two fixing blocks 31 in each set. A sliding block 33 is movably mounted on each guide rod 32. A bottom block 40 is fixedly mounted between the two sliding blocks 33. The bottom block 40 is located below the connecting frame 12. One end of the bottom block 40 is fixed. A stop block 13 is fixedly mounted on one side of the end face of the connecting frame 12. A top block 41 is fixedly mounted on each stop block 13, located above the connecting frame 12. Slider blocks 42 are fixedly mounted at both ends of each top block 41. Insert rods 43 are symmetrically fixedly mounted on each stop block 13, located between the bottom block 40 and the top block 41. Positioning holes 50 are provided through each insert rod 43. A vertical rod 51 is fixedly mounted on the bottom of each bottom block 40. A limit block 52 is fixedly mounted on the bottom of each vertical rod 51. A movable block 53 is movably mounted on each vertical rod 51. Positioning rods 60, which move on the bottom block 40 and the top block 41 respectively, are fixedly mounted on each movable block 53. Each positioning rod 60 has a connecting hole 73. The positioning rods 60 connect to the two insert rods 43. The positioning hole 50 is inserted into the top block 41. The connecting hole 73 is located above the top block 41. Each top block 41 is provided with a traction groove 61. Each traction groove 61 is fixedly equipped with an installation tube 62. One end of each installation tube 62 is movably equipped with an adjusting rod 63. One end of the adjusting rod 63 moves inside the installation tube 62. The other end of each adjusting rod 63 is fixedly equipped with a toggle block 70. Each toggle block 70 is fixedly equipped with a stop rod 71 that is inserted into the connecting hole 73 on the positioning rod 60. A telescopic spring 72 is fixedly equipped between the toggle block 70 and the traction groove 61. The installation tube 62 and the adjusting rod 63 are assembled inside the telescopic spring 72. The bottom block 40 moves on the guide rod 32 on the fixed block 31 through the sliding block 33, so that the stop block 13 on the bottom block 40 moves. Move towards the connecting bracket 12 until the insertion rod 43 is inserted into the second insertion hole 30. The positioning hole 50 on the insertion rod 43 is located in the second assembly hole 23. Move the toggle block 70 so that the toggle block 70 drives the stop rod 71 to move. One end of the adjusting rod 63 moves inside the mounting tube 62, and the telescopic spring 72 is stretched. At this time, let the movable block 53 move on the vertical rod 51 so that the positioning rod 60 is inserted into the positioning holes 50 on the two insertion rods 43. The positioning rod 60 moves on the second assembly hole 23. The connecting hole 73 on the positioning rod 60 is located on one side of the stop rod 71. Release the toggle block 70. Under the elastic force of the telescopic spring 72, the stop rod 71 can be inserted into the connecting hole 73 on the positioning rod 60.

[0030] Reference Figure 1 - Figure 3 An L-shaped connecting plate 11 is symmetrically fixedly mounted on the transformer body 10. The L-shaped connecting plate 11 is provided with a plurality of first mounting holes 21. The end face of the L-shaped connecting plate 11 is provided with a plurality of first insertion holes 22 corresponding to the first mounting holes 21. A plurality of sets of sliding blocks 20 are fixedly mounted on the L-shaped connecting plate 11. Each set of sliding blocks 20 consists of two blocks, and the two sliding blocks 20 in each set are located on both sides of the first mounting hole 21. The sliding blocks 20 are inserted into the slider 42. At this time, the first mounting hole 21 and the second mounting hole 23 coincide, and the insertion rod 43 can be inserted into the first insertion hole 22 and the second insertion hole 30.

[0031] Working principle: The L-shaped connecting plate 11 on the transformer body 10 is placed on the connecting frame 12. The bottom block 40 moves on the guide rod 32 on the fixed block 31 via the sliding block 33, causing the stop block 13 on the bottom block 40 to move towards the connecting frame 12 until the two insertion rods 43 are respectively inserted into the first insertion hole 22 and the second insertion hole 30. The positioning holes 50 on the insertion rods 43 are respectively located in the first assembly hole 21 and the second assembly hole 23. The first assembly hole 21 and the second assembly hole 23 coincide, which moves the actuating block 70, causing the actuating block 70 to drive the stop rod 71 to move. One end of the adjusting rod 63 moves inside the mounting tube 62. When the telescopic spring 72 is stretched, the movable block 53 moves on the vertical rod 51, allowing the positioning rod 60 to engage with the positioning holes 50 on the two insertion rods 43. The positioning rod 60 moves on the first assembly hole 21 and the second assembly hole 23 respectively. The connecting hole 73 on the positioning rod 60 is located on one side of the stop rod 71. When the toggle block 70 is released, the stop rod 71 can engage with the connecting hole 73 on the positioning rod 60 under the elastic force of the telescopic spring 72, thus fixing the current transformer body 10 to the connecting frame 12. This facilitates the disassembly and assembly of the current transformer body 10 on the connecting frame 12, improves installation efficiency, and facilitates subsequent maintenance and repair by maintenance personnel.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-voltage current transformer that is easy to install, characterized in that: The device includes a current transformer body (10), a connecting frame (12) is mounted on the bottom of the current transformer body (10), a plurality of second mounting holes (23) are provided through the connecting frame (12), a plurality of second insertion holes (30) are provided on the end face of the connecting frame (12), the second insertion holes (30) are connected to the second mounting holes (23), a plurality of sets of fixing blocks (31) are fixedly mounted on the bottom of the connecting frame (12), each set of fixing blocks (31) consists of two blocks, each set of two fixing blocks (31) is located on both sides of the second mounting hole (23), a guide rod (32) is fixedly mounted between the two fixing blocks (31) in each set, a sliding block (33) is movably mounted on the guide rod (32), and a bottom block (40) is fixedly mounted between the two sliding blocks (33), the bottom block (40) is located on the connecting frame. Below (12), a stop block (13) is fixedly mounted on one end of the bottom block (40). The stop block (13) is located on one side of the end face of the connecting frame (12). A top block (41) is fixedly mounted on the stop block (13). The top block (41) is located above the connecting frame (12). A slider (42) is fixedly mounted on both ends of the top block (41). A plug rod (43) is symmetrically fixedly mounted on the stop block (13). The plug rod (43) is located between the bottom block (40) and the top block (41). A positioning hole (50) is provided through the plug rod (43). A vertical rod (51) is fixedly mounted on the bottom of the bottom block (40). A limit block (52) is fixedly mounted on the bottom of the vertical rod (51). A movable block (53) is movably mounted on the vertical rod (51). A positioning rod (60) is fixedly mounted on the movable block (53).

2. The high-voltage current transformer that is easy to install according to claim 1, characterized in that: The positioning rod (60) is movably assembled with the bottom block (40) and the top block (41) respectively. The positioning rod (60) is provided with a connecting hole (73). The positioning rod (60) is inserted into the positioning hole (50) on the two insert rods (43). The connecting hole (73) is located above the top block (41).

3. A high-voltage current transformer that is easy to install according to claim 2, characterized in that: Each of the top blocks (41) is provided with a traction groove (61), and each of the traction grooves (61) is fixedly equipped with an installation tube (62). One end of each installation tube (62) is movably equipped with an adjusting rod (63). One end of the adjusting rod (63) moves inside the installation tube (62), and the other end of each adjusting rod (63) is fixedly equipped with a toggle block (70).

4. A high-voltage current transformer that is easy to install according to claim 3, characterized in that: Each of the actuating blocks (70) is fixedly equipped with a stop bar (71), and the stop bar (71) is inserted into the connecting hole (73) on the positioning rod (60). The mounting tube (62) and the adjusting rod (63) are equipped with telescopic springs (72), and the two ends of the telescopic springs (72) are fixedly assembled with the actuating block (70) and the traction groove (61) respectively.

5. A high-voltage current transformer that is easy to install according to claim 4, characterized in that: The transformer body (10) is symmetrically fixedly equipped with an L-shaped connecting plate (11). The L-shaped connecting plate (11) is provided with a plurality of first mounting holes (21). The end face of the L-shaped connecting plate (11) is provided with a plurality of first insertion holes (22). The first insertion holes (22) are connected to the first mounting holes (21). The L-shaped connecting plate (11) is fixedly equipped with a plurality of sets of sliding blocks (20). Each set of sliding blocks (20) has two blocks, and the two sliding blocks (20) of each set are located on both sides of the first mounting hole (21).

6. A high-voltage current transformer that is easy to install according to claim 5, characterized in that: The slide block (20) is inserted into the slider (42). At this time, the first mounting hole (21) and the second mounting hole (23) coincide, and the insertion rod (43) can be inserted into the first insertion hole (22) and the second insertion hole (30).

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