A wall bushing assembly with high-voltage shielding

Abstract

This utility model relates to the field of wall bushing technology, specifically to a wall bushing assembly with high-voltage shielding. It includes a wall body, with connecting plates threaded to both outer sides of the wall body. An outer sleeve is fixedly connected to the inner side of each connecting plate on an adjacent side. Two connecting rods are fixedly connected to the outer side of the connecting plates. Each connecting rod has a control mechanism on its outer side, and a fixing mechanism is provided outside the control mechanism. The control mechanism includes a support plate, which is slidably connected to the outer side of the connecting rods. A limiting plate is fixedly connected to the outer side of the support plate. This utility model achieves flexible and precise adjustment of the shielding layer position of the sliding section and free control of the overall length of the wall bushing assembly by using a support plate slidably connected to the connecting rods, fixing bolts connecting the inner limiting plate and the limiting plate together, and a cooperating connection between the outer support plate and the limiting frame. This allows for adaptation to different wall thicknesses and electrical equipment installation requirements.

Description

Technical Field

[0001] This utility model relates to the field of wall bushing technology, and in particular to a wall bushing assembly with high-voltage shielding. Background Technology

[0002] In modern power systems, the safe and stable operation of high-voltage electrical equipment is of paramount importance. As a key component enabling high-voltage circuits to traverse different spaces, the performance of wall bushings directly impacts the reliability of the entire power system. With the continuous growth of electricity demand and the constant upgrading of grid voltage levels, the performance requirements for wall bushings are becoming increasingly stringent.

[0003] The prior art patent document CN221328555U discloses a wall bushing assembly with high-voltage shielding, including a wall bushing body, a threaded ring threaded to the rear end face of the wall bushing body, an extended sleeve fixedly connected to the rear end face of the threaded ring, an upper clamp on the upper end face of the wall bushing body, and a lower clamp on the lower end face of the wall bushing body. This utility model uses the threaded ring to thread the extended sleeve onto the wall bushing, thus increasing the length of the wall bushing to adapt to walls of different thicknesses. At the same time, the positions of the two clamps can be adjusted to fix the wall bushing assembly to the wall, making it convenient to use. The diameter of the wall bushing assembly can be adjusted by moving the two positioning support plates up and down, allowing the wall bushing assembly to be adaptively engaged and limited into wall openings of different sizes, ensuring the stability of the wall bushing assembly.

[0004] Existing technologies can increase the length of through-wall bushings, but through-wall bushing assemblies using threaded ring connections to extend the bushing have many shortcomings. In terms of shielding performance, threaded ring connections are mechanical connections. During the tightening process, the contact resistance can increase due to poor contact between the threaded ring and the shielding layer, the presence of an oxide layer or impurities. At the same time, if the threaded ring connection is not properly handled, gaps or unevenness may appear, damaging the integrity of the shielding layer. This makes it difficult to meet people's usage needs and has low practicality. Utility Model Content

[0005] The purpose of this utility model is to provide a wall bushing assembly with high-voltage shielding, which solves the problems of using threaded rings to change the length of the wall bushing assembly, which easily leads to a decrease in the performance of the shielding layer, a weakening of the electromagnetic shielding effect, and differences in the installation position of electrical equipment, as well as the problems of low installation efficiency and difficulty in ensuring the continuity of the shielding layer due to inconvenient adjustment.

[0006] To achieve the above objectives, this utility model provides a wall bushing assembly with high-voltage shielding, including a wall body, connecting plates threaded to both outer sides of the wall body, an outer sleeve fixedly connected to the inner side of the adjacent side of the connecting plates, two connecting rods fixedly connected to the outer side of the connecting plates, a control mechanism provided on the outer side of each connecting rod, and a fixing mechanism provided on the outer side of the control mechanism.

[0007] The control mechanism includes a support plate, which is internally slidably connected to the outside of the connecting rod. A limiting plate is fixedly connected to the outside of the support plate. A fixing bolt is internally threaded onto the limiting plate. An inner limiting plate is internally threaded onto the fixing bolt. An outer support plate is fixedly connected to the other side of the inner limiting plate. A limiting frame is fixedly connected to the outside of the outer support plate. A slider is slidably connected to the other end of the connecting rod. A snap-fit ​​frame is fixedly connected to the outside of the slider. An adjustment assembly is externally threaded onto the connecting rod.

[0008] The fixing mechanism includes two connecting blocks, with one side of the two connecting blocks being fixedly connected to the other side of the inner limiting plate. Each connecting block has an adjusting bolt slidably connected inside, and both sides of the adjusting bolt are threaded with fixing buckles.

[0009] The fixing buckle is internally fixedly connected to an inner sleeve, the inner sleeve is externally fixedly connected to a fixed section shielding layer, and the inner sleeve is externally slidably connected to a sliding section shielding layer.

[0010] The adjusting assembly includes an adjusting nut, the internal thread of which is connected to the outside of the connecting rod, and a support nut is threaded to the other end of the connecting rod.

[0011] The external support of the adjusting nut is located on the slider, i.e., on the side close to the limiting frame, while the external support of the supporting nut is located on the slider, i.e., on the side away from the adjusting nut.

[0012] The snap-fit ​​frame is snapped into the outside of the sliding section shielding layer on one side, and the limiting plate is snapped into the outside of the fixed section shielding layer on one side.

[0013] The inner sliding connection of the limiting frame is to the outside of the connecting rod, and the adjacent side of the inner limiting plate is supported on the outside of the inner sleeve.

[0014] The outer part of the fixed section shielding layer is installed inside the outer sleeve, and the slider and the limiting frame are horizontally slidably connected to the support plate outside the connecting rod.

[0015] This utility model discloses a wall bushing assembly with high-voltage shielding.

[0016] 1. In this utility model, a support plate is slidably connected to a connecting rod, and a fixing bolt connects the inner limiting plate and the limiting plate together. The outer support plate and the limiting frame are connected in cooperation to restrict the inner sleeve. The slider slides at the other end of the connecting rod, driving the snap-fit ​​frame to move, thereby achieving the effect of snapping the shielding layer of the sliding section and preparing for adjusting the position of the shielding layer of the sliding section. Then, the adjusting nut and the support nut are threadedly connected to the connecting rod, so that the position of the slider is precisely controlled. This achieves the effect of flexibly and accurately adjusting the position of the shielding layer of the sliding section and freely controlling the overall length of the through-wall sleeve assembly, so as to adapt to different wall thicknesses and electrical equipment installation requirements.

[0017] 2. In this utility model, the inner limiting plate and the adjusting bolt are connected by a connecting block. The adjusting bolt adjusts the position of the fixing buckle through sliding and threaded connection, which drives the fixing buckle to change the fixing position of the inner sleeve, so as to achieve the effect of flexibly adjusting the installation position of the inner sleeve. The fixing buckle fixes the inner sleeve and drives the inner sleeve to remain stable, so as to achieve the effect of providing reliable insulation protection for electrical equipment. The outer fixed section shielding layer and the sliding section shielding layer are slidably connected to the inner sleeve, so as to drive the fixed section shielding layer and the sliding section shielding layer to work together to solve the problem of shielding layer compatibility caused by different installation environment, the problem of unstable insulation protection of electrical equipment, and the problem of the through-wall bushing assembly being unable to ensure the continuity and integrity of electromagnetic shielding under different working conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the inner sleeve of this utility model.

[0021] Figure 3 This is a schematic diagram of the connecting rod of this utility model.

[0022] Figure 4 This is a schematic diagram of the snap-fit ​​frame of this utility model.

[0023] In the diagram: 1. Wall; 2. Connecting plate; 3. Outer sleeve; 4. Connecting rod; 5. Control mechanism; 51. Support plate; 52. Limiting plate; 53. Fixing bolt; 54. Inner limiting plate; 55. Outer support plate; 56. Limiting frame; 57. Slider; 58. Snap-fit ​​frame; 59. Adjusting component; 591. Adjusting nut; 592. Supporting nut; 6. Fixing mechanism; 61. Connecting block; 62. Adjusting bolt; 63. Fixing buckle; 64. Inner sleeve; 65. Fixed section shielding layer; 66. Sliding section shielding layer. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] Please see Figures 1-4 This utility model provides a technical solution: a wall bushing assembly with high-voltage shielding, including a wall 1, which serves as an installation carrier, separating indoor and outdoor spaces and providing an installation foundation for the wall bushing assembly. Connecting plates 2 are threaded to both sides of the wall 1, connecting the wall 1 and the outer sleeve 3, serving as a transition and fixing function, and dispersing the pressure on the wall 1 during assembly installation. The outer sleeve 3 is fixedly connected to the inner side of the connecting plate 2, providing basic insulation and mechanical protection, accommodating the fixed section shielding layer 65, and initially isolating the influence of the external environment on the internal electrical structure. Two connecting rods 4 are fixedly connected to the outside of the connecting plate 2, transmitting mechanical force to ensure the relative position stability between the components and providing guidance for assembly length adjustment. Control mechanisms 5 are provided on the outside of each connecting rod 4, and fixing mechanisms 6 are provided on the outside of the control mechanisms 5.

[0026] The control mechanism 5 includes a support plate 51, which provides an installation platform. The support plate 51 is internally slidably connected to the outside of the connecting rod 4. A limiting plate 52 is fixedly connected to the outside of the support plate 51, limiting the position of the fixed section shielding layer 65. A fixing bolt 53 is internally threaded onto the limiting plate 52. Tightening or loosening the fixing bolt 53 adjusts the positions of the inner limiting plate 54, the outer support plate 55, and the limiting frame 56, thereby clamping and loosening the fixed section shielding layer 65 and controlling the fixing force of the limiting plate 52. An inner limiting plate 54 is internally threaded onto the fixing bolt 53, applying pressure to the fixed section shielding layer 65 under the action of the fixing bolt 53 to achieve fixation. An outer support plate is fixedly connected to the other side of the inner limiting plate 54. The outer support plate 55 transmits the pressure of the inner limiting plate 54 to the limiting frame 56. The limiting frame 56 is fixedly connected to the outside of the outer support plate 55. The limiting frame 56 slides on the connecting rod 4 to provide guidance and support for the movement of the control mechanism 5. The other end of the connecting rod 4 is slidably connected to the slider 57. The slider 57 slides on the connecting rod 4 and drives the snap-fit ​​frame 58 to move, thereby adjusting the position of the sliding section shielding layer 66. The snap-fit ​​frame 58 is fixedly connected to the outside of the slider 57. The snap-fit ​​frame 58 snaps the sliding section shielding layer 66 and cooperates with the limiting plate 52. After the component length adjustment is completed, the sliding section shielding layer 66 is limited to prevent it from shifting, ensuring the continuity and electrical performance of the shielding layer. The connecting rod 4 is threadedly connected to the outside of the adjusting component 59.

[0027] The adjustment assembly 59 includes an adjustment nut 591, which is screwed onto the connecting rod 4 to push the slider 57 to move on the connecting rod 4, thereby achieving precise adjustment of the position of the sliding section shielding layer 66 and controlling the overall length of the assembly. The internal thread of the adjustment nut 591 is connected to the outside of the connecting rod 4, and the other end of the connecting rod 4 is threaded to a support nut 592. The support nut 592 fixes the position of the slider 57 to prevent it from loosening or shifting due to vibration, external force or other factors during operation, and ensures that the position of the sliding section shielding layer 66 is stable after adjustment. The external support of the adjustment nut 591 is on the side of the slider 57 that is close to the limiting frame 56, and the external support of the support nut 592 is on the side of the slider 57 that is away from the adjustment nut 591.

[0028] like Figures 1-4 As shown, the fixing mechanism 6 includes two connecting blocks 61. The connecting blocks 61 connect the inner limiting plate 54 and the adjusting bolts 62, connecting the control mechanism 5 and the fixing mechanism 6 to transmit mechanical force. The adjacent side of the two connecting blocks 61 is fixedly connected to the more distant side of the inner limiting plate 54. The adjusting bolts 62 are slidably connected inside each connecting block 61. The adjusting bolts 62 adjust the position of the fixing buckles 63 by sliding inside the connecting block 61 and being threadedly connected to the fixing buckles 63, thus changing the tightness. The fixing buckles 63 are threadedly connected to both sides of the adjusting bolts 62. The fixing buckles 63 adjust and fix the position of the inner sleeve 64 by being threadedly connected to the adjusting bolts 62. The fixing buckles 63 are internally fixedly connected to the inner sleeve 64. An inner sleeve 64 is connected to the inner sleeve 64, which provides insulation protection for electrical equipment. A fixed section shielding layer 65 is fixedly connected to the outside of the inner sleeve 64. The fixed section shielding layer 65 serves as a fixed part of the high-voltage shielding, covering a specific area of ​​the inner sleeve 64 to shield electromagnetic interference generated by high-voltage equipment and prevent electromagnetic leakage from affecting the safety of surrounding equipment and personnel. A sliding section shielding layer 66 is slidably connected to the outside of the inner sleeve 64. The sliding section shielding layer 66 cooperates with the fixed section shielding layer 65 to realize the adjustable function of the shielding layer length, so as to adapt to the needs of different wall thicknesses or electrical equipment installation positions. During the adjustment process, the continuity and integrity of the shielding layer are maintained to ensure that the electromagnetic shielding effect is not affected.

[0029] The inner side of the snap-fit ​​frame 58 is snapped onto the outside of the sliding section shielding layer 66, the inner side of the limiting plate 52 is snapped onto the outside of the fixed section shielding layer 65, the inner side of the limiting frame 56 is slidably connected to the outside of the connecting rod 4, the inner side of the inner limiting plate 54 is supported on the outside of the inner sleeve 64, the outside of the fixed section shielding layer 65 is installed inside the outer sleeve 3, and the slider 57 and the limiting frame 56 are horizontally slidably connected to the outside of the connecting rod 4 with the support plate 51.

[0030] Working principle: When installing the through-wall sleeve assembly, the wall 1 serves as the foundation. The connecting plate 2 is threaded to both sides of the wall 1, and the outer sleeve 3 is fixed inside the connecting plate 2. The outer sleeve 3 accommodates the fixed section shielding layer 65, providing insulation and protection. Two connecting rods 4 are fixed to the outside of the connecting plate 2, serving as installation supports for the control mechanism 5 and the fixing mechanism 6. In the control mechanism 5, the support plate 51 is slidably connected to the connecting rod 4, and the limiting plate 52 is fixed to the support plate 51. The inner limiting plate 54 is fixed together with the limiting plate 52 by the fixing bolt 53. The outer support plate 55 and the limiting frame 56 cooperate to restrict the inner sleeve 64 outside the connecting rod 4, placing the fixed section shielding layer 65 inside the outer sleeve 3. The slider 57 slides at the other end of the connecting rod 4, and its external snap-fit ​​frame 58 is used to snap the sliding section shielding layer 66. The adjusting nut 591 and the support nut 592 are threadedly connected to the connecting rod 4 to control the position of the slider 57.

[0031] In the fixing mechanism 6, the connecting block 61 connects the inner limiting plate 54 and the adjusting bolt 62. The adjusting bolt 62 adjusts the position of the fixing buckle 63 through sliding and threaded connection. The fixing buckle 63 fixes the inner sleeve 64. The inner sleeve 64 is externally fixed with the fixed section shielding layer 65 and the sliding section shielding layer 66, thereby realizing the shielding function.

[0032] When the length of the through-wall sleeve assembly needs to be adjusted, loosen the fixing bolt 53 to release the clamping force on the fixed section shielding layer 65, rotate the adjusting nut 591 to move it on the connecting rod 4, push the slider 57 to slide, the slider 57 drives the snap-fit ​​frame 58, and then pulls the sliding section shielding layer 66 to move axially along the inner sleeve 64. The limiting frame 56 slides on the connecting rod 4 to guide the movement of the control mechanism 5. After adjusting to the appropriate length, tighten the support nut 592 to fix the position of the slider 57, and then tighten the fixing bolt 53. The fixed section shielding layer 65 is re-clamped by the inner limiting plate 54, the outer support plate 55 and the limiting frame 56. At the same time, the snap-fit ​​frame 58 clamps the sliding section shielding layer 66, so that the two shielding layers are tightly connected. If it is necessary to fine-tune the position of the inner sleeve 64 and the shielding layer, it can be done by adjusting the bolt 62 and fixing buckle 63 to ensure the shielding performance and installation accuracy of the entire through-wall sleeve assembly.

[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A wall bushing assembly with high-voltage shielding, comprising a wall, characterized in that: The wall is threaded with connecting plates on both sides of its exterior. An outer sleeve is fixedly connected to the interior of the adjacent side of the connecting plate. Two connecting rods are fixedly connected to the exterior of the connecting plate. A control mechanism is provided on the exterior of each connecting rod. A fixing mechanism is provided on the exterior of each control mechanism. The control mechanism includes a support plate, which is internally slidably connected to the outside of the connecting rod. A limiting plate is fixedly connected to the outside of the support plate. A fixing bolt is internally threaded onto the limiting plate. An inner limiting plate is internally threaded onto the fixing bolt. An outer support plate is fixedly connected to the other side of the inner limiting plate. A limiting frame is fixedly connected to the outside of the outer support plate. A slider is slidably connected to the other end of the connecting rod. A snap-fit ​​frame is fixedly connected to the outside of the slider. An adjustment assembly is externally threaded onto the connecting rod.

2. The wall bushing assembly with high-voltage shielding according to claim 1, characterized in that: The fixing mechanism includes two connecting blocks, with one side of the two connecting blocks being fixedly connected to the far side of the inner limiting plate. Each connecting block has an adjusting bolt slidably connected inside, and both sides of the adjusting bolt are threaded with fixing buckles.

3. A wall bushing assembly with high-voltage shielding according to claim 2, characterized in that: The fixing buckle is internally fixedly connected to an inner sleeve, the inner sleeve is externally fixedly connected to a fixed section shielding layer, and the inner sleeve is externally slidably connected to a sliding section shielding layer.

4. A wall bushing assembly with high-voltage shielding according to claim 1, characterized in that: The adjusting assembly includes an adjusting nut, the internal thread of which is connected to the outside of the connecting rod, and a support nut is threaded to the other end of the connecting rod.

5. A wall bushing assembly with high-voltage shielding according to claim 4, characterized in that: The external support of the adjusting nut is on the slider, i.e., on the side close to the limiting frame, and the external support of the supporting nut is on the slider, i.e., on the side away from the adjusting nut.

6. A wall bushing assembly with high-voltage shielding according to claim 3, characterized in that: The inner side of the snap-fit ​​frame is snapped into the outer side of the sliding section shielding layer, and the inner side of the limiting plate is snapped into the outer side of the fixed section shielding layer.

7. A wall bushing assembly with high-voltage shielding according to claim 3, characterized in that: The inner sliding connection of the limiting frame is to the outside of the connecting rod, and the adjacent side of the inner limiting plate is supported on the outside of the inner sleeve.

8. A wall bushing assembly with high-voltage shielding according to claim 3, characterized in that: The outer side of the fixed section shielding layer is installed inside the outer sleeve, and the slider and the limiting frame are horizontally slidably connected to the support plate outside the connecting rod.

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