An adjustable high-voltage through-wall bushing conductor fixing device
The adjustable high-voltage through-wall bushing conductor fixing device, with the cooperation of components such as rubber pads and adjustment mechanisms, solves the problem of unstable conductor fixing, realizes rapid fixing and sealing of conductor, and improves the stability and maintenance convenience of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUCHANG SHENGSHUN ELECTRIC CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
In existing high-voltage equipment, the conductors of the through-wall bushings are not securely fixed and are prone to displacement or loosening under high-voltage conditions, making maintenance inconvenient and adjustment difficult.
An adjustable high-voltage through-wall bushing conductor fixing device is adopted. Through the cooperation of components such as rubber pads, adjusting mechanism, screw, nut, limit plate, fixing mechanism, clamp, guide plate, pressure plate, card seat, and screw, the conductor can be quickly fixed and sealed, avoiding screw exposure and facilitating subsequent adjustment.
It enables rapid fixing and sealing of the conductor, avoids water vapor erosion caused by exposure, simplifies the later maintenance process, and improves the stability and ease of maintenance of the conductor.
Smart Images
Figure CN224289190U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage equipment installation technology, and in particular to an adjustable high-voltage through-wall bushing conductor fixing device. Background Technology
[0002] With the vigorous construction and development of ultra-high voltage (UHV) power grids, testing techniques for UHV equipment will be further developed to more effectively master and utilize UHV technology. For some UHV laboratories, the effective use of through-wall bushings will further enhance the technical advantages of UHV testing.
[0003] The existing technology has the following problems:
[0004] The existing assembly process involves measuring the distance between the two ends of the sleeve, drilling holes, and inserting cotter pins in two stages. One cotter pin is inserted, while the other cotter pin requires custom-made tooling to be hammered in. This results in an unstable conductor that is prone to displacement or loosening under high voltage conditions, making subsequent maintenance inconvenient and difficult to adjust. Utility Model Content
[0005] This invention provides an adjustable high-voltage through-wall bushing conductor fixing device to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] An adjustable high-voltage through-wall bushing conductor fixing device includes an end cap, an adjustment mechanism fixedly connected to the upper side of the end cap near the four corners, an adjustment plate movably sleeved on the outer side of the adjustment mechanism, a fixing mechanism fixedly connected to the upper middle part of the adjustment plate, and a conductor body movably sleeved on the inner side of the fixing mechanism.
[0008] The adjusting mechanism includes screws, the lower side of which is fixedly connected to the upper side of the end cover near the four corners. Four screws are rectangularly distributed on the end cover. Two nuts are threadedly connected to the outer sides of each of the four screws. The upper side of the adjusting plate is movably sleeved on the outer side of the screws near the four corners, and the adjusting plate is located between the two nuts.
[0009] Preferably, protective covers are movably sleeved on the outer sides of the four screws, and the protective covers are located on the upper side of the adjusting plate. Two fixing plates are fixedly connected to the outer sides of the four protective covers near the bottom, and the outer sides of the fixing plates are embedded in the grooves near the four corners on the upper side of the adjusting plate. Two left and right distributed retainers are movably sleeved on the outer sides of the adjusting plate near the edge, and the outer sides of the fixing plates are movably sleeved on the inner side of the retainers at the position away from the protective covers.
[0010] Preferably, a rubber sleeve is fixedly connected to the upper side of the end cap near the edge, and the outer side of the rubber sleeve is movably sleeved on the inner side of the ferrule near the upper side. An elastic telescopic sleeve is fixedly connected between the lower side of the adjusting plate near the edge and the upper side of the end cap, and the screw is located between the rubber sleeve and the elastic telescopic sleeve.
[0011] Preferably, four rectangular rubber pads are fixedly connected to the upper and lower sides of the adjusting plate near the four corners, and the rubber pads are located on the side of the nut closest to the adjusting plate.
[0012] Preferably, each of the four protective covers has two limiting plates fixedly connected to its lower side, and the outer side of the nut is movably sleeved between the limiting plates.
[0013] Preferably, a level tube is fixedly connected to the center of the upper side of the adjusting plate near the four sides.
[0014] Preferably, the fixing mechanism includes a fixing seat, the lower side of which is fixedly connected to the upper middle part of the adjusting plate. A plurality of annularly distributed clamping plates are movably sleeved on the inner side of the fixing seat. Guide plates are fixedly connected to the outer sides of the clamping plates. A pressure plate overlaps on the upper side of the clamping plates. Two front-to-back distributed card holders are fixedly connected to the front and rear sides of the fixing seat near the bottom. Two front-to-back distributed screws are movably sleeved on the front and rear sides of the pressure plate and the inner side of the card holders.
[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0016] 1. This utility model provides an adjustable high-voltage through-wall bushing conductor fixing device, which adopts the cooperation of rubber pad, adjusting mechanism, screw, nut, limiting plate, fixing mechanism, fixing seat, clamp, guide plate, pressure plate, card seat, screw and conductor body. By adjusting the position of the nut, the length of the conductor body on the upper and lower sides of the end cap can be adjusted. Relying on the pressure plate to fix the clamp, the conductor body is quickly fixed on the fixing mechanism, thereby enabling the conductor body to be quickly fixed and facilitating subsequent adjustment. This avoids the problems of needing to drill holes and difficulty in adjustment caused by using pin fixing.
[0017] 2. This utility model provides an adjustable high-voltage through-wall bushing conductor fixing device, which uses a clamping seat, screw, adjusting mechanism, screw rod, nut, limiting plate, protective cover, fixing plate, clamping sleeve, rubber sleeve and elastic telescopic sleeve in cooperation. Through the cooperation of the protective cover, rubber sleeve and elastic telescopic sleeve, the screw rod is sealed to avoid the problem of the screw rod being exposed and corroded by moisture in the air during subsequent equipment maintenance, which would make it difficult to adjust. At the same time, other settings that do not need to be adjusted are replaced by quick-release form without affecting subsequent maintenance. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the end cap portion of this utility model;
[0020] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the screw part of this utility model;
[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram of part A in the middle;
[0022] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the fixing mechanism part of this utility model.
[0023] In the diagram: 1. End cap; 2. Adjusting mechanism; 21. Screw; 22. Nut; 23. Limiting plate; 24. Protective cover; 25. Fixing plate; 26. Sleeve; 27. Rubber sleeve; 28. Elastic telescopic sleeve; 29. Rubber pad; 210. Level tube; 3. Adjusting plate; 4. Fixing mechanism; 41. Fixing seat; 42. Clamping plate; 43. Guide plate; 44. Pressure plate; 45. Sleeve seat; 46. Screw; 5. Conductor body. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] like Figures 1-5 As shown, an adjustable high-voltage through-wall bushing conductor fixing device includes an end cap 1. An adjustment mechanism 2 is fixedly connected to the upper side of the end cap 1 near the four corners. An adjustment plate 3 is movably sleeved on the outer side of the adjustment mechanism 2. A fixing mechanism 4 is fixedly connected to the upper middle part of the adjustment plate 3. A conductor body 5 is movably sleeved on the inner side of the fixing mechanism 4.
[0026] The adjusting mechanism 2 includes screws 21. The lower side of the screws 21 is fixedly connected to the upper side of the end cover 1 near the four corners. Four screws 21 are rectangularly distributed on the end cover 1. Two nuts 22 are threadedly connected to the outer sides of the four screws 21. The upper side of the adjusting plate 3 is movably sleeved on the outer side of the screws 21 near the four corners, and the adjusting plate 3 is located between the two nuts 22.
[0027] It should be noted that adjusting the lower nut 22 is used to determine the lower position of the adjusting plate 3, and then using the upper nut 22 to fix it, to avoid the problem that using a single nut 22 would make it difficult to adjust the four nuts 22 at the same time, causing the adjusting plate 3 to twist itself.
[0028] like Figure 3 As shown, protective covers 24 are movably sleeved on the outer sides of the four screws 21, and the protective covers 24 are located on the upper side of the adjusting plate 3. Two fixing plates 25 are fixedly connected to the outer sides of the four protective covers 24 near the bottom, and the outer sides of the fixing plates 25 are embedded in the grooves on the upper side of the adjusting plate 3 near the four corners. Two left and right distributed retainers 26 are movably sleeved on the outer side of the adjusting plate 3 near the edge, and the outer sides of the fixing plates 25 away from the protective covers 24 are movably sleeved on the inner side of the retainers 26.
[0029] It should be noted that a flexible gasket is used to seal the upper side of the adjusting plate 3 and the lower side of the protective cover 24, so that the protective cover 24 seals the outer part of the screw 21 located on the upper side of the adjusting plate 3, and the two clamps 26 are fixed together with screws.
[0030] like Figure 4 As shown, a rubber sleeve 27 is fixedly connected to the upper side of the end cap 1 near the edge. The outer side of the rubber sleeve 27 is movably sleeved on the inner side of the ferrule 26 near the upper side. An elastic telescopic sleeve 28 is fixedly connected between the lower side of the adjusting plate 3 near the edge and the upper side of the end cap 1. The screw 21 is located between the rubber sleeve 27 and the elastic telescopic sleeve 28.
[0031] It should be noted that the combined effect of the rubber sleeve 27 and the elastic telescopic sleeve 28 seals the bottom of the outer side of the screw 21, while the rubber sleeve 27 is easy to remove and does not affect the adjustment of the nut 22 on the lower side.
[0032] like Figure 3 As shown, four rectangular rubber pads 29 are fixedly connected to the upper and lower sides of the adjusting plate 3 near the four corners, and the rubber pads 29 are located on the side of the nut 22 near the adjusting plate 3.
[0033] It should be noted that the rubber pad 29 is used to prevent the adjusting plate 3 from making rigid contact with the nut 22, which could cause damage to the components due to excessive twisting.
[0034] like Figure 3 As shown, each of the four protective covers 24 has two limiting plates 23 fixedly connected to its lower side, and the outer side of the nut 22 is movably sleeved between the limiting plates 23.
[0035] It should be noted that the limiting plate 23 is used to limit the nut 22 so that the nut 22 will not rotate on its own due to external influence. At the same time, the thickness of the adjusting plate 3 is related to the pitch of the screw 21, so that the upper and lower nuts 22 can be aligned in top view after the two nuts 22 are adjusted.
[0036] like Figure 4 As shown, a level tube 210 is fixedly connected to the center of the upper side of the adjusting plate 3 near the four sides.
[0037] It should be noted that the level tube 210 is used to detect the state of the adjusting plate 3, so as to facilitate the control of the position of the four nuts 22 after adjustment.
[0038] like Figure 5 As shown, the fixing mechanism 4 includes a fixing seat 41. The lower side of the fixing seat 41 is fixedly connected to the upper middle part of the adjusting plate 3. Several ring-shaped clamping plates 42 are movably sleeved on the inner side of the fixing seat 41. Guide plates 43 are fixedly connected to the outer sides of the clamping plates 42. Pressure plates 44 overlap the upper side of the clamping plates 42. Two front and rear distributed card seats 45 are fixedly connected to the front and rear sides of the fixing seat 41 near the bottom. Two front and rear distributed screws 46 are movably sleeved on the front and rear sides of the pressure plate 44 and the inner side of the card seats 45.
[0039] It should be noted that the pressure plate 44 is fixed by the screw 46, which pushes the clamping plate 42 down. As the clamping plate 42 moves down, it is affected by the guide plate 43, causing the clamping plates 42 to move closer to each other, thus clamping and fixing the conductor body 5. The screw 46 has a threaded rod and a nut. Under the fixation of the card holder 45, the nut limits the height of the pressure plate 44. At the same time, there is an anti-loosening washer between the nut and the threaded rod. The bottom of the card holder 45 has a groove. The polygonal block on the lower side of the threaded rod is inserted into the groove, so that the threaded rod is fixed.
[0040] The working principle of this utility model is as follows: First, the lower nut 22 is adjusted to determine the lower position of the adjusting plate 3. Then, the upper nut 22 is used to fix it, avoiding the problem of the four nuts 22 being difficult to adjust simultaneously due to the use of a single nut 22, which could cause the adjusting plate 3 to twist. The limiting plate 23 is used to limit the nuts 22, preventing them from rotating on their own due to external influences. At the same time, the thickness of the adjusting plate 3 is related to the pitch of the screw 21, which facilitates the adjustment of the two nuts 22 after they are adjusted, so that the upper and lower nuts 22 can be viewed from above. The conductor body 5 is aligned by fixing the pressure plate 44 with screw 46, causing the pressure plate 44 to push down the clamping plate 42. Due to the downward movement of the clamping plate 42, influenced by the guide plate 43, the clamping plates 42 move closer to each other, causing the clamping plates 42 to clamp and fix the conductor body 5. By adjusting the position of the nut 22, the length of the conductor body 5 on the upper and lower sides of the end cap 1 can be adjusted. By fixing the clamping plate 42 with the pressure plate 44, the conductor body 5 is quickly fixed to the fixing mechanism 4, which allows the conductor body 5 to be quickly fixed and facilitates subsequent adjustment, avoiding the use of pins for fixing. To address the issues of needing to drill holes and difficulty in later adjustments, a flexible gasket is used to seal the upper side of the adjusting plate 3 and the lower side of the protective cover 24. This seals the outer part of the screw 21 located on the upper side of the adjusting plate 3. The two retaining sleeves 26 are fixed together with screws. The combined action of the rubber sleeve 27 and the elastic telescopic sleeve 28 seals the bottom outer side of the screw 21. The rubber sleeve 27 is easily removed without affecting the adjustment of the nut 22 on the lower side. The screw 46 has a threaded rod and a nut, which are fixed by the retaining seat 45. The nut limits the height of the pressure plate 44, and an anti-loosening washer is provided between the nut and the threaded rod. The bottom of the card holder 45 is provided with a groove, and the polygonal block on the lower side of the threaded rod is inserted into the groove to fix the threaded rod. Through the cooperation of the protective cover 24, the rubber sleeve 27, and the elastic telescopic sleeve 28, the screw 21 is sealed to prevent the screw 21 from being exposed and corroded by moisture in the air during subsequent equipment maintenance, which would make it difficult to adjust. At the same time, other settings that do not require adjustment are replaced by quick-release, which does not affect subsequent maintenance.
[0041] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An adjustable high voltage bushing conductor fixing device comprising an end cap (1), characterized in that: An adjustment mechanism (2) is fixedly connected to the upper side of the end cap (1) near the four corners. An adjustment plate (3) is movably sleeved on the outer side of the adjustment mechanism (2). A fixing mechanism (4) is fixedly connected to the upper middle part of the adjustment plate (3). A conductor body (5) is movably sleeved on the inner side of the fixing mechanism (4). The adjustment mechanism (2) includes a screw (21). The lower side of the screw (21) is fixedly connected to the upper side of the end cover (1) near the four corners. Four screws (21) are rectangularly distributed on the end cover (1). Two nuts (22) are threadedly connected to the outer sides of the four screws (21) and distributed vertically. The upper side of the adjustment plate (3) is movably sleeved on the outer side of the screw (21) near the four corners, and the adjustment plate (3) is located between the two nuts (22).
2. The adjustable high-voltage through-wall bushing conductor fixing device according to claim 1, characterized in that: All four screws (21) are movably fitted with protective covers (24), and the protective covers (24) are located on the upper side of the adjusting plate (3). Two fixing plates (25) are fixedly connected to the outer side of the four protective covers (24) near the bottom. The outer side of the fixing plates (25) is embedded in the grooves near the four corners on the upper side of the adjusting plate (3). Two left and right distributed clips (26) are movably fitted to the outer side of the adjusting plate (3) near the edge. The outer side of the fixing plates (25) away from the protective covers (24) is movably fitted to the inner side of the clips (26).
3. The adjustable high-voltage through-wall bushing conductor fixing device according to claim 2, characterized in that: A rubber sleeve (27) is fixedly connected to the upper side of the end cap (1) near the edge. The outer side of the rubber sleeve (27) is movably sleeved on the inner side of the sleeve (26) near the upper side. An elastic telescopic sleeve (28) is fixedly connected between the lower side of the adjusting plate (3) near the edge and the upper side of the end cap (1). The screw (21) is located between the rubber sleeve (27) and the elastic telescopic sleeve (28).
4. The adjustable high-voltage through-wall bushing conductor fixing device according to claim 1, characterized in that: Four rectangular rubber pads (29) are fixedly connected to the upper and lower sides of the adjustment plate (3) near the four corners, and the rubber pads (29) are located on the side of the nut (22) near the adjustment plate (3).
5. The adjustable high-voltage through-wall bushing conductor fixing device according to claim 2, characterized in that: Each of the four protective covers (24) has two limiting plates (23) fixedly connected to its lower side, and the outer side of the nut (22) is movably sleeved between the limiting plates (23).
6. The adjustable high-voltage through-wall bushing conductor fixing device according to claim 1, characterized in that: A level tube (210) is fixedly connected to the middle of the upper side of the adjusting plate (3) near the four sides.
7. The adjustable high-voltage through-wall bushing conductor fixing device according to claim 1, characterized in that: The fixing mechanism (4) includes a fixing seat (41). The lower side of the fixing seat (41) is fixedly connected to the upper middle part of the adjusting plate (3). A number of ring-shaped clamping plates (42) are movably sleeved on the inner side of the fixing seat (41). A guide plate (43) is fixedly connected to the outer side of each of the clamping plates (42). A pressure plate (44) overlaps on the upper side of the clamping plates (42). Two front and rear distributed card seats (45) are fixedly connected to the front and rear sides of the fixing seat (41) near the bottom. Two front and rear distributed screws (46) are movably sleeved on the front and rear sides of the pressure plate (44) and the inner side of the card seats (45).