Shielding cylinder for current and voltage transformer

Abstract

The utility model relates to the technical field of shielding cylinders, and discloses a shielding cylinder for a current and voltage transformer, a mounting mechanism is arranged between a first outer cylinder and a second outer cylinder, and a covering mechanism is arranged on the mounting mechanism; the mounting mechanism comprises a connecting assembly and a limiting assembly, the connecting assembly comprises an inserting groove, inserting plates are fixedly connected to the upper end and the lower end of the left side of the second outer cylinder, the surfaces of the inserting plates are inserted into the inserting groove, long grooves are formed in the inserting plates, the front sides and the rear sides of the long grooves are provided with openings, long blocks are inserted into the long grooves, and connecting plates are fixedly connected to the other sides of the long blocks; and the long blocks are inserted into the long grooves, so that the first outer cylinder and the second outer cylinder can be fixed. According to the shielding cylinder for the current and voltage transformer, the second outer cylinder drives the inserting plate to be inserted into the inserting groove, the long block is inserted into the long groove, the fixing plate is inserted into the square groove, the first outer cylinder and the second outer cylinder can be arranged on the surface of the current and voltage transformer in a sleeving mode, and at the moment, the voltage transformer can be protected against external electromagnetic interference.

Description

Technical Field

[0001] The utility model relates to the technical field of shielding cylinders, in particular to a shielding cylinder for a current and voltage transformer. Background Art

[0002] Current and voltage transformers are devices used to measure current and voltage. They play an important role in power systems. Current and voltage transformers can convert high voltage or large current into lower levels for easy measurement and monitoring. Current and voltage transformers are mainly composed of current transformers and voltage transformers.

[0003] For example, a shielding tube for a current and voltage transformer with announcement number CN217955650U is designed to solve the technical problems of the inconvenience of rapid assembly of the shielding tube and poor sealing performance under the prior art. The electric shielding tube includes a main shielding tube, and an insulating connector is arranged inside the main shielding tube.

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use, a shielding tube is usually used in this equipment to prevent signal interference. When the shielding tube is put on the surface of the voltage transformer, it is simply fixed by bolts. Over a long period of time, the bolts will become loose, causing gaps between the shielding tube and the surface of the voltage transformer, which will cause electromagnetic interference. Utility Model Content

[0006] The utility model aims to provide a shielding cylinder for a current and voltage transformer to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: a shielding cylinder for a current and voltage transformer, comprising a first outer cylinder, a second outer cylinder, a cylinder cover and a current and voltage transformer, wherein the first outer cylinder and the second outer cylinder are both arranged on the left and right sides of the current and voltage transformer, the cylinder covers are both arranged on the top and bottom of the first outer cylinder and the second outer cylinder, a mounting mechanism is arranged between the first outer cylinder and the second outer cylinder, and a covering mechanism is arranged on the mounting mechanism;

[0008] The installation mechanism comprises a connecting component and a limiting component, wherein the limiting component is arranged on the connecting component;

[0009] The connecting component includes a slot, which is opened at the upper and lower ends of the right side of the first outer cylinder, and the right side of the slot is set as an opening. The upper and lower ends of the left side of the second outer cylinder are fixedly connected with plug plates, and the surface of the plug plate is plugged into the interior of the slot. A long slot is opened inside the plug plate, and the front and rear sides of the long slot are both set as openings. A long block is plugged into the long slot, and a connecting plate is fixedly connected to the other side of the long block. The long block is plugged into the long slot to fix the first outer cylinder and the second outer cylinder.

[0010] Preferably, both the front and rear sides of the first outer cylinder are provided with through long grooves, and the surface of the long block penetrates and is inserted into the through long grooves both the front and rear sides of the first outer cylinder.

[0011] Preferably, the limiting assembly includes a connecting ring, which is fixedly connected to the upper and lower side surfaces of the first outer cylinder and the second outer cylinder, a T-shaped groove is provided on the inner sides of the upper and lower connecting rings, square grooves are provided inside the left and right sides of the connecting plate, a T-shaped slider is slidably connected inside the T-shaped groove, a connecting seat is fixedly connected to the T-shaped slider on one side close to the connecting plate, a fixing plate is fixedly connected to the other side of the connecting seat, reinforcing plates are fixedly connected to the left and right sides of the fixing plate and the side of the connecting seat close to the connecting plate, and bolts are threadedly connected inside the fixing plate and the connecting plate.

[0012] Preferably, the left and right square grooves are set to be open near one side and the outer side of the connecting ring, the surface of the fixing plate and the inside of the square groove are plugged in, and the fixing plate is plugged in the square groove, so that the first outer cylinder and the second outer cylinder can be put on the surface of the current and voltage transformer, thereby protecting the voltage transformer from external electromagnetic interference.

[0013] Preferably, the covering mechanism includes an annular slide groove, which is opened on the outside of the connecting ring, and the front and rear sides of the cylinder cover are fixedly connected with mounting blocks, the bottom of the mounting block is hinged with a hinged plate, and the other side of the hinged plate is hinged with a mounting plate, the mounting plate is fixedly connected with an annular slider on the side of the mounting plate close to the connecting ring, the mounting plate is fixedly connected with a fixing seat on the side of the mounting plate close to the cylinder cover, and the other side of the fixing seat is fixedly connected with a mounting seat, and the mounting seat is fixedly connected with a telescopic plate on the side of the mounting seat close to the connecting ring, and limiting grooves are densely opened on the outer sides of the upper and lower connecting rings.

[0014] Preferably, the number of the annular sliders is eight and they form a group of two, and the surface of the annular slider is slidably connected to the inside of the annular sliding groove.

[0015] Preferably, the outer sides of the limit grooves on the upper and lower sides are set to be open, the surface of the telescopic plate is plugged into the inner part of the limit groove, and the telescopic plate is stretched and plugged into the limit groove, so as to limit and fix the position of the cylinder cover.

[0016] Compared with the prior art, the utility model provides a shielding tube for a current and voltage transformer, which has the following beneficial effects:

[0017] 1. The shielding tube for the current and voltage transformer is provided with an installation mechanism. When the installation mechanism is in operation, the second outer tube drives the plug-in plate to be inserted into the slot, and the connecting plate drives the long block to be inserted into the long slot again. When the connecting seat is toggled, the connecting seat drives the T-shaped slider to slide in the T-shaped slide slot, and at the same time, the connecting seat drives the fixing plate to be inserted into the square slot. The fixing plate and the connecting plate are threadedly fixed by bolts. At this time, the first outer tube and the second outer tube can be sleeved on the surface of the current and voltage transformer, and the voltage transformer can be protected from external electromagnetic interference.

[0018] 2. The shielding tube for the current and voltage transformer is provided with a covering mechanism. When the covering mechanism is in operation, the mounting plate is moved so that the mounting plate drives the annular slider to slide in the annular sliding groove. At the same time, the tube cover can also drive the top end or the bottom end formed by the first outer tube and the second outer tube. The telescopic plate is stretched and inserted into the limit groove again, and the position of the tube cover can be limited and fixed. The space formed by the first outer tube and the second outer tube can form a closed space, reduce the influence of the external electromagnetic field on the operation of the voltage transformer, and thus improve the accuracy and stability of the voltage transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0020] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0021] Figure 2 is a schematic diagram of the structure of the connection components;

[0022] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 A schematic diagram of the partial structural decomposition of the connected components;

[0024] Figure 5 It is a schematic diagram of the split structure of the first outer cylinder and the second outer cylinder;

[0025] Figure 6 It is a structural schematic diagram of the limit assembly;

[0026] Figure 7 It is a structural schematic diagram of the covering mechanism;

[0027] Figure 8 for Figure 7 Enlarged structural diagram at B in the middle.

[0028] In the figure: 1. first outer tube; 2. second outer tube; 3. tube cover; 4. covering mechanism; 41. limiting groove; 42. annular slide groove; 43. annular slider; 44. fixing seat; 45. mounting plate; 46. hinged plate; 47. mounting block; 48. mounting seat; 49. telescopic plate; 5. mounting mechanism; 51. connecting assembly; 511. plug plate; 512. long groove; 513. slot; 514. long block; 515. connecting plate; 52. limiting assembly; 521. square groove; 522. bolt; 523. reinforcing plate; 524. T-shaped slider; 525. connecting seat; 526. T-shaped slide groove; 527. fixing plate; 528. connecting ring; 6. current and voltage transformer. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The utility model provides the following technical solutions:

[0032] Embodiment 1

[0033] Combination Figures 1 to 6 A shielding cylinder for a current and voltage transformer comprises a first outer cylinder 1, a second outer cylinder 2, a cylinder cover 3 and a current and voltage transformer 6. The first outer cylinder 1 and the second outer cylinder 2 are both arranged on the left and right sides of the current and voltage transformer 6. The cylinder cover 3 is arranged on the top and bottom of the first outer cylinder 1 and the second outer cylinder 2. A mounting mechanism 5 is arranged between the first outer cylinder 1 and the second outer cylinder 2. A covering mechanism 4 is arranged on the mounting mechanism 5.

[0034] The mounting mechanism 5 includes a connecting component 51 and a limiting component 52, wherein the limiting component 52 is disposed on the connecting component 51;

[0035] The connecting component 51 includes a slot 513, which is opened at the upper and lower ends of the right side of the first outer tube 1, and the right side of the slot 513 is set as an opening. The upper and lower ends of the left side of the second outer tube 2 are fixedly connected with plug plates 511, and the surface of the plug plate 511 is plugged into the inside of the slot 513. A long groove 512 is opened inside the plug plate 511, and the front and rear sides of the long groove 512 are set as openings. A long block 514 is plugged into the long groove 512, and a connecting plate 515 is fixedly connected to the other side of the long block 514.

[0036] The first outer tube 1 has long through grooves on both the front and rear sides, and the surface of the long block 514 penetrates and is inserted into the long through grooves on both the front and rear sides of the first outer tube 1;

[0037] The limiting assembly 52 includes a connecting ring 528, which is fixedly connected to the upper and lower surfaces of the first outer tube 1 and the second outer tube 2. A T-shaped slide groove 526 is provided on the inner sides of the upper and lower connecting rings 528. Square grooves 521 are provided inside the left and right sides of the connecting plate 515. A T-shaped slider 524 is slidably connected inside the T-shaped slide groove 526. A connecting seat 525 is fixedly connected to the T-shaped slider 524 on the side close to the connecting plate 515, and a fixing plate 527 is fixedly connected to the other side of the connecting seat 525. Reinforcing plates 523 are fixedly connected to the left and right sides of the fixing plate 527 and the side of the connecting seat 525 close to the connecting plate 515. Bolts 522 are threadedly connected to the fixing plate 527 and the connecting plate 515. The left and right square grooves 521 are set to be open near the side and the outer side of the connecting ring 528, and the surface of the fixing plate 527 and the inside of the square groove 521 are plugged in.

[0038] Furthermore, the second outer cylinder 2 drives the plug plate 511 to be inserted into the slot 513, the long block 514 is inserted into the long groove 512, and the connecting seat 525 drives the fixing plate 527 to be inserted into the square groove 521, so that the first outer cylinder 1 and the second outer cylinder 2 can be sleeved on the surface of the current and voltage transformer 6, thereby protecting the voltage transformer from external electromagnetic interference.

[0039] Embodiment 2

[0040] See also Figure 1-8, and on the basis of the first embodiment, the covering mechanism 4 further comprises an annular slide groove 42, the annular slide groove 42 is arranged outside the connecting ring 528, the front and rear sides of the cylinder cover 3 are fixedly connected with mounting blocks 47, the bottom of the mounting block 47 is hinged with a hinge plate 46, the other side of the hinge plate 46 is hinged with a mounting plate 45, the mounting plate 45 is fixedly connected with an annular slider 43 on one side close to the connecting ring 528, the mounting plate 45 is fixedly connected with a fixing seat 44 on one side close to the cylinder cover 3, the other side of the fixing seat 44 is fixedly connected with a mounting seat 48, the mounting seat 48 is fixedly connected with a telescopic plate 49 on one side close to the connecting ring 528, and the outer sides of the upper and lower connecting rings 528 are densely provided with limiting grooves 41;

[0041] There are eight annular sliders 43 in number and they form a group of two. The surface of the annular slider 43 is slidably connected to the inside of the annular slide groove 42. The outer sides of the upper and lower limit grooves 41 are set as openings, and the surface of the telescopic plate 49 is plugged into the inside of the limit groove 41.

[0042] Furthermore, the cylinder cover 3 is arranged at the top end or the bottom end formed by the first outer cylinder 1 and the second outer cylinder 2, and the telescopic plate 49 is stretched and inserted in the limiting groove 41, which can limit and fix the position of the cylinder cover 3, and can form a closed space for the space formed by the first outer cylinder 1 and the second outer cylinder 2, thereby reducing the influence of the external electromagnetic field on the operation of the voltage transformer, thereby improving the accuracy and stability of the voltage transformer.

[0043] In actual operation, when the device is used, when the first outer cylinder 1 and the second outer cylinder 2 are arranged on the surface of the current and voltage transformer 6, the second outer cylinder 2 can drive the plug plate 511 to be inserted into the slot 513, and the connecting plate 515 can drive the long block 514 to be inserted into the long groove 512 again, and then the connecting seat 525 is dialed, so that the connecting seat 525 drives the T-shaped slider 524 to slide in the T-shaped slide groove 526, and at the same time, the connecting seat 525 drives the fixing plate 527 to be inserted into the square groove 521, and the fixing plate 527 and the connecting plate 515 are threadedly fixed by the bolts 522. At this time, the first outer cylinder 1 and the second outer cylinder 2 can be sleeved on the surface of the current and voltage transformer 6, and the voltage transformer can be protected from external electromagnetic interference;

[0044] The mounting plate 45 is moved again, so that the mounting plate 45 drives the annular slider 43 to slide in the annular slide groove 42. At the same time, the cylinder cover 3 is arranged at the top end or the bottom end formed by the first outer cylinder 1 and the second outer cylinder 2. The telescopic plate 49 is stretched and inserted into the limiting groove 41 again, and the position of the cylinder cover 3 can be limited and fixed, and a closed space can be formed for the space formed by the first outer cylinder 1 and the second outer cylinder 2, thereby reducing the influence of the external electromagnetic field on the operation of the voltage transformer, thereby improving the accuracy and stability of the voltage transformer.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A shielding cylinder for a current and voltage transformer, comprising a first outer cylinder (1), a second outer cylinder (2), a cylinder cover (3) and a current and voltage transformer (6), characterized in that: The first outer cylinder (1) and the second outer cylinder (2) are both arranged on the left and right sides of the current and voltage transformer (6); the cylinder covers (3) are both arranged on the top and bottom of the first outer cylinder (1) and the second outer cylinder (2); a mounting mechanism (5) is arranged between the first outer cylinder (1) and the second outer cylinder (2); and a covering mechanism (4) is arranged on the mounting mechanism (5); The mounting mechanism (5) comprises a connecting component (51) and a limiting component (52), wherein the limiting component (52) is arranged on the connecting component (51); The connecting assembly (51) comprises a slot (513), wherein the slot (513) is provided at the upper and lower ends of the right side of the first outer tube (1), and the right side of the slot (513) is arranged to be open. The upper and lower ends of the left side of the second outer tube (2) are both fixedly connected with plugging plates (511), the surface of the plugging plate (511) is plugged into the inside of the slot (513), and a long slot (512) is provided inside the plugging plate (511), and the front and rear sides of the long slot (512) are both arranged to be open. A long block (514) is plugged into the inside of the long slot (512), and the other side of the long block (514) is fixedly connected with a connecting plate (515).

2. The shielding tube for current and voltage transformer according to claim 1, characterized in that: The first outer cylinder (1) is provided with through long grooves on both the front and rear sides, and the surface of the long block (514) is inserted through the through long grooves on both the front and rear sides of the first outer cylinder (1).

3. The shielding tube for current and voltage transformer according to claim 1, characterized in that: The limiting assembly (52) comprises a connecting ring (528), wherein the connecting ring (528) is fixedly connected to the upper and lower surfaces of the first outer cylinder (1) and the second outer cylinder (2), and a T-shaped sliding groove (526) is provided inside the upper and lower connecting rings (528). Square grooves (521) are provided inside the left and right sides of the connecting plate (515), and a T-shaped sliding block (524) is slidably connected inside the T-shaped sliding groove (526). A connecting seat (525) is fixedly connected to the side of the T-shaped sliding block (524) close to the connecting plate (515), and a fixing plate (527) is fixedly connected to the other side of the connecting seat (525). Reinforcing plates (523) are fixedly connected to the left and right sides of the fixing plate (527) and the side of the connecting seat (525) close to the connecting plate (515), and bolts (522) are threadedly connected inside the fixing plate (527) and the connecting plate (515).

4. The shielding tube for current and voltage transformer according to claim 3, characterized in that: The left and right square grooves (521) are both opened on one side and the outer side close to the connection ring (528), and the surface of the fixing plate (527) and the inside of the square groove (521) are plugged into each other.

5. The shielding tube for current and voltage transformer according to claim 1, characterized in that: The covering mechanism (4) comprises an annular sliding groove (42), the annular sliding groove (42) is arranged on the outer side of the connecting ring (528), the front and rear sides of the cylinder cover (3) are fixedly connected with mounting blocks (47), the bottom of the mounting block (47) is hinged with a hinge plate (46), the other side of the hinge plate (46) is hinged with a mounting plate (45), the mounting plate (45) is fixedly connected with an annular sliding block (43) on the side close to the connecting ring (528), the mounting plate (45) is fixedly connected with a fixing seat (44) on the side close to the cylinder cover (3), the fixing seat (44) is fixedly connected with a mounting seat (48) on the other side, the mounting seat (48) is fixedly connected with a telescopic plate (49) on the side close to the connecting ring (528), and limiting grooves (41) are densely arranged on the outer sides of the upper and lower connecting rings (528).

6. The shielding tube for current and voltage transformer according to claim 5, characterized in that: The number of the annular sliders (43) is eight and they form a group of two each. The surface of the annular sliders (43) is slidably connected to the inside of the annular slide groove (42).

7. The shielding tube for current and voltage transformer according to claim 5, characterized in that: The outer sides of the limiting grooves (41) on the upper and lower sides are arranged to be open, and the surface of the telescopic plate (49) is plugged into the interior of the limiting grooves (41).

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