Bus duct sealing structure
Patent Information
- Application Number
- CN202522008736.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-09-18
AI Technical Summary
[0004]本实用新型的目的是为了解决现有技术中存在单一的橡胶垫圈在长期受压后易产生永久性形变或老化皲裂,导致密封性能逐渐失效的缺点,提供一种母线槽密封结构
[0013]本实用新型通过密封板对连接处进行密封工作,通过密封板对阻拦块进行挤压,使阻拦块向固定架的内部移动,通过阻拦块的移动带动滑杆进行移动,并且在阻拦块移动时会对第一弹簧进行挤压,使第一弹簧处于压缩状态,当密封板越过阻拦块以后,通过第一弹簧的回弹带动阻拦块复位,从而对密封板进行初步固定,当需要解除对密封板的时,通过拉动拉板带动阻拦块移动解除对密封板的限位,当两个密封板均初步固定以后,两个卡槽会进行对齐,共同构成一个H型槽,然后将固定块与卡槽进行卡合,从而完成对密封板的二次固定,保证密封板不会出现掉落的情况,确保密封工作的正常进行。
Smart Images

Figure CN224874789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of busbar trunking sealing technology, and in particular to a busbar trunking sealing structure. Background Technology
[0002] Busbar trunking, as a high-efficiency power distribution equipment for transmitting electrical energy, is widely used in various buildings, industrial plants and other places. The sealing performance of its connection is crucial and directly affects the safety, reliability and service life of the entire power supply system. If the sealing is poor, external moisture, dust and corrosive gases can easily enter the busbar trunking, leading to a decrease in insulation performance, conductor oxidation and corrosion, and even serious accidents such as phase-to-phase short circuits or leakage to ground.
[0003] Existing busbar trunking sealing methods mostly involve adding rubber gaskets to the connection end faces and tightening them with bolts to achieve a seal. While this method has a certain sealing effect, a single rubber gasket is prone to permanent deformation or aging and cracking after long-term pressure, leading to a gradual failure of the sealing performance. Most existing sealing structures lack effective secondary fixing and locking mechanisms. Under the action of external forces such as vibration or thermal expansion and contraction, the seal may shift or loosen, compromising the integrity of the seal. When the busbar trunking needs to be inspected or maintained, the disassembly process is often difficult, and the seal may easily stick to the trunking body, making operation inconvenient and reducing maintenance efficiency. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies where single rubber gaskets are prone to permanent deformation or aging and cracking after long-term pressure, leading to gradual failure of sealing performance, and to provide a busbar trunking sealing structure.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a busbar trunking sealing structure, comprising a busbar trunking body, a sealing plate provided on the outer surface of the busbar trunking body, a slot provided on the outer surface of the sealing plate, a fixing block sleeved on the inner wall of the slot, the fixing block engaging with the slot, a fixing frame fixedly connected to the outer surface of the busbar trunking body, a pull plate provided on the outer surface of the fixing frame, a sliding rod fixedly connected to one side of the pull plate, and a blocking block fixedly connected to one end of the sliding rod.
[0006] In a preferred embodiment, a sliding groove is formed on the outer surface of the busbar trunking body, and a fixing rod is fixedly connected to the inner wall of the sliding groove.
[0007] In a preferred embodiment, a top block is sleeved on the outer surface of the fixing rod, and the inner wall of the top block is slidably connected to the outer surface of the fixing rod.
[0008] In a preferred embodiment, a second spring is sleeved on the outer surface of the fixing rod, one end of the second spring is fixedly connected to one end of the top block, and the other end of the second spring is fixedly connected to the inner wall of the slide groove.
[0009] In a preferred embodiment, a first spring is sleeved on the outer surface of the slide rod, one end of the first spring is slidably connected to the inner wall of the fixing frame, and the other end of the first spring is fixedly connected to one side of the blocking block.
[0010] In a preferred embodiment, the fixing frame has a rectangular hole inside that matches the blocking block, and the rectangular hole is slidably connected to the fixing frame.
[0011] In a preferred embodiment, the outer surface of the fixing frame is provided with a through hole that matches the slide rod, and the inner wall of the through hole is slidably connected to the outer surface of the slide rod.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] This invention uses a sealing plate to seal the connection. The sealing plate compresses the blocking block, causing it to move inwards towards the fixed frame. This movement of the blocking block moves the sliding rod, compressing the first spring as it moves. After the sealing plate passes the blocking block, the spring's rebound resets the blocking block, thus initially fixing the sealing plate. To release the sealing plate, the pulling plate is pulled, causing the blocking block to move and releasing the sealing plate's restriction. Once both sealing plates are initially fixed, the two slots align to form an H-shaped groove. The fixed block then engages with the slot, completing a secondary fixation of the sealing plate and preventing it from falling off, ensuring the sealing process is complete. Attached Figure Description
[0014] Figure 1 A perspective view of a busbar trunking sealing structure provided by this utility model.
[0015] Figure 2 A side view of a busbar trunking sealing structure provided by this utility model.
[0016] Figure 3 A cross-sectional view of the fixing frame of a busbar trunking sealing structure provided by this utility model.
[0017] Figure 4 A cross-sectional view of the busbar trunking body for a busbar trunking sealing structure provided by this utility model.
[0018] Legend:
[0019] 1. Busbar trunking body; 2. Sealing plate; 3. Slot; 4. Fixing block; 5. Fixing frame; 6. Pull plate; 7. Slide rod; 8. First spring; 9. Blocking block; 10. Slide groove; 11. Fixing rod; 12. Top block; 13. Second spring. Detailed Implementation
[0020] 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 protection scope of the present utility model.
[0021] Example 1
[0022] like Figures 1-4 As shown, this utility model provides a technical solution: a busbar trunking sealing structure, including a busbar trunking body 1, a sealing plate 2 on the outer surface of the busbar trunking body 1, a slot 3 on the outer surface of the sealing plate 2, a fixing block 4 sleeved on the inner wall of the slot 3, the fixing block 4 engaging with the slot 3, a fixing frame 5 fixedly connected to the outer surface of the busbar trunking body 1, a pull plate 6 on the outer surface of the fixing frame 5, a sliding rod 7 fixedly connected to one side of the pull plate 6, a through hole adapted to the sliding rod 7 on the outer surface of the fixing frame 5, the inner wall of the through hole slidingly connected to the outer surface of the sliding rod 7, a blocking block 9 fixedly connected to one end of the sliding rod 7, a rectangular hole adapted to the blocking block 9 inside the fixing frame 5, the rectangular hole slidingly connected to the fixing frame 5, a first spring 8 sleeved on the outer surface of the sliding rod 7, one end of the first spring 8 slidingly connected to the inner wall of the fixing frame 5, and the other end of the first spring 8 fixedly connected to one side of the blocking block 9.
[0023] In this embodiment, the busbar trunking body 1 provides an installation environment for the sealing plate 2, ensuring the normal operation of the sealing work. After the connector of the busbar trunking body 1 is connected, the sealing plate 2 seals the connection. The sealing plate 2 presses against the blocking block 9, causing the blocking block 9 to move into the fixing frame 5. The movement of the blocking block 9 drives the sliding rod 7 to move, and the movement of the blocking block 9 compresses the first spring 8, putting the first spring 8 into a compressed state. When the sealing plate 2 passes the blocking block 9, the rebound of the first spring 8 causes the blocking block 9 to reset, thus initially fixing the sealing plate 2. When it is necessary to release the sealing plate 2, the pulling plate 6 is pulled to move the blocking block 9 to release the limitation on the sealing plate 2. After both sealing plates 2 are initially fixed, the two slots 3 are aligned to form an H-shaped groove. Then, the fixing block 4 is engaged with the slot 3 to complete the secondary fixing of the sealing plate 2, ensuring that the sealing plate 2 will not fall off and ensuring the normal operation of the sealing work.
[0024] Example 2
[0025] like Figures 1-4 As shown, a sliding groove 10 is provided on the outer surface of the busbar trunking body 1. A fixing rod 11 is fixedly connected to the inner wall of the sliding groove 10. A top block 12 is sleeved on the outer surface of the fixing rod 11. The inner wall of the top block 12 is slidably connected to the outer surface of the fixing rod 11. A second spring 13 is sleeved on the outer surface of the fixing rod 11. One end of the second spring 13 is fixedly connected to one end of the top block 12, and the other end of the second spring 13 is fixedly connected to the inner wall of the sliding groove 10.
[0026] In this embodiment, when the sealing plate 2 is attached to the surface of the busbar trunking body 1, the sealing plate 2 will press the top block 12, causing the top block 12 to move downward along the fixing rod 11, and the top block 12 will press the second spring 13, causing the second spring 13 to be in a compressed state, and then the top block 12 will be stored inside the slide groove 10. When the sealing plate 2 is disassembled, the top block 12 will be reset by the rebound of the second spring 13, thereby lifting the sealing plate 2, which is convenient for the staff to disassemble.
[0027] Working principle:
[0028] like Figures 1-4 As shown, in this utility model, firstly, the worker connects the connector of the busbar trunking body 1, then begins to install the sealing plate 2. The sealing plate 2 is brought close to and fitted against the busbar trunking body 1. During this process, the sealing plate 2 encounters and is pressed against the blocking block 9. The blocking block 9, under pressure, moves into the fixing frame 5, simultaneously causing the sliding rod 7 to slide within the through hole of the fixing frame 5 and compressing the first spring 8. When the sealing plate 2 passes the blocking block 9, the first spring 8 rebounds, causing the blocking block 9 to reset, thus achieving initial fixation of the sealing plate 2. After both sealing plates 2 have completed initial fixation, their outer surface slots 3 align to form an H-shaped groove. At this point, the fixing block 4 is inserted into the slot 3 to engage, completing the secondary fixation of the sealing plate 2. The sealing plate 2 is firmly installed on the busbar trunking body 1 to ensure the sealing effect of the busbar trunking. While installing the sealing plate 2, the sealing plate 2 will also press the top block 12, causing the top block 12 to slide down along the fixing rod 11 and compress the second spring 13. The top block 12 is gradually retracted into the sliding groove 10. When the sealing plate 2 needs to be disassembled later, the fixing block 4 is first separated from the slot 3. Then the operator pulls the pull plate 6, which drives the sliding rod 7 and the blocking block 9 to move, releasing the limit on the sealing plate 2. Then the second spring 13 rebounds, driving the top block 12 to reset and lifting the sealing plate 2 to a certain height. In this way, the operator can more easily remove the sealing plate 2 from the busbar trunking body 1 for inspection or maintenance of the busbar trunking.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A busbar trunking sealing structure, comprising a busbar trunking body (1), characterized in that: The outer surface of the busbar trunking body (1) is provided with a sealing plate (2), and the outer surface of the sealing plate (2) is provided with a slot (3). A fixing block (4) is sleeved on the inner wall of the slot (3). The fixing block (4) is engaged with the slot (3). A fixing frame (5) is fixedly connected to the outer surface of the busbar trunking body (1). A pull plate (6) is provided on the outer surface of the fixing frame (5). A sliding rod (7) is fixedly connected to one side of the pull plate (6). A blocking block (9) is fixedly connected to one end of the sliding rod (7).
2. The busbar trunking sealing structure according to claim 1, characterized in that: The outer surface of the busbar trunking body (1) is provided with a sliding groove (10), and a fixing rod (11) is fixedly connected to the inner wall of the sliding groove (10).
3. The busbar trunking sealing structure according to claim 2, characterized in that: A top block (12) is sleeved on the outer surface of the fixing rod (11), and the inner wall of the top block (12) is slidably connected to the outer surface of the fixing rod (11).
4. The busbar trunking sealing structure according to claim 2, characterized in that: The outer surface of the fixing rod (11) is fitted with a second spring (13), one end of the second spring (13) is fixedly connected to one end of the top block (12), and the other end of the second spring (13) is fixedly connected to the inner wall of the slide groove (10).
5. The busbar trunking sealing structure according to claim 1, characterized in that: The outer surface of the slide bar (7) is fitted with a first spring (8), one end of the first spring (8) is slidably connected to the inner wall of the fixing frame (5), and the other end of the first spring (8) is fixedly connected to one side of the blocking block (9).
6. The busbar trunking sealing structure according to claim 1, characterized in that: The fixed frame (5) has a rectangular hole inside that is adapted to the blocking block (9), and the rectangular hole is slidably connected to the fixed frame (5).
7. The busbar trunking sealing structure according to claim 1, characterized in that: The outer surface of the fixing frame (5) is provided with a through hole that is compatible with the slide rod (7), and the inner wall of the through hole is slidably connected to the outer surface of the slide rod (7).