Bus duct with dustproof joint

Abstract

The utility model discloses a bus duct with dustproof joint, including bus duct body and its both ends joint. The bus duct body one end sliding fit has the first rectangular protective cover, and the other end sliding fit has the second rectangular protective cover. The first, second rectangular protective cover is through the slider on it and the sliding slot on the bus duct body sliding fit. The both sides of first rectangular protective cover are equipped with the connecting arm of joint hole, and the both sides of second rectangular protective cover are equipped with the limit structure, and this limit structure utilizes the limit post of spring drive and joint hole joint, realizes the quick butt joint and locking of protective cover. The butt joint end face of first, second rectangular protective cover all is equipped with the first rectangular sealing ring of mutual extrusion, and its inner wall all is equipped with the second rectangular sealing ring of sealed cooperation with bus duct body outer wall, forms double seal. The utility model discloses through the sliding joint and double seal structure, has realized bus duct joint quick, tool -free installation and dismounting, has promoted the dustproof and sealing performance of joint part simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of busbar technology, specifically a busbar with a dustproof connector. Background Technology

[0002] Busbar trunking, as a highly efficient power transmission device, is widely used in various building and industrial power distribution systems. During actual installation, multiple sections of busbar trunking are typically connected via joints to achieve continuous power transmission. However, after installation, dust, impurities, or moisture can easily accumulate at busbar trunking joints, potentially leading to poor contact, decreased insulation performance, or even short circuits over time, posing safety hazards.

[0003] To address the aforementioned issues, existing technologies typically employ the method of adding protective covers to the outside of the busbar trunking joints, with a rubber sealing plate installed between the cover and the busbar trunking body to achieve dustproof sealing. However, these structures mostly rely on multiple bolts to fix and tighten the cover, making installation and disassembly cumbersome and time-consuming, and extremely inconvenient in confined or high-altitude working environments. Furthermore, bolted connections are prone to stripping or damage during frequent disassembly and maintenance, affecting the sealing effect and structural reliability, and failing to meet the requirements of modern engineering for installation efficiency and ease of maintenance.

[0004] Therefore, we propose a busbar trunking with a dustproof connector. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a busbar trunking with a dustproof connector. Through a sliding protective cover, a spring-loaded locking mechanism, and a double sealing ring design, it enables quick and tool-free disassembly and assembly of the connector, while effectively preventing dust and moisture, improving installation and maintenance efficiency and connector protection reliability, and effectively solving the problems in the background technology.

[0006] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a busbar trunking with dustproof connectors, comprising a busbar trunking body, connectors provided on the outer surfaces of both ends of the busbar trunking body, a first rectangular protective cover slidably fitted on the outer wall of one end of the busbar trunking body, and a second rectangular protective cover slidably fitted on the outer wall of the other end; the first rectangular protective cover is used to dock with a second rectangular protective cover on another set of busbar trunking bodies, and the second rectangular protective cover is used to dock with a first rectangular protective cover on another set of busbar trunking bodies; a sliding groove is provided at the middle of both the left and right ends of the upper outer surface of the busbar trunking body, and a sliding groove is fixedly installed at the middle of the left side of the upper end of the inner cavity of the first rectangular protective cover and the middle of the right side of the upper end of the inner cavity of the second rectangular protective cover. The slider has a sliding fit. A second rectangular sealing ring is fixedly installed on the left side of the inner wall of the first rectangular protective cover and the right side of the inner wall of the second rectangular protective cover. A first rectangular sealing ring is fixedly installed on the outer surface of the right end of the first rectangular protective cover and the outer surface of the left end of the second rectangular protective cover. The second rectangular sealing ring is located on the side of the slider closest to the first rectangular sealing ring. A connecting arm is fixedly installed on the right end of the outer surfaces of both sides of the first rectangular protective cover. A snap-fit ​​hole is provided on one side of the outer surface of the connecting arm away from the first rectangular protective cover, and the snap-fit ​​hole extends to the other side of the outer surface of the connecting arm. Limiting structures are provided on both sides of the outer surfaces of the second rectangular protective cover, and the limiting structures include mounting holes, helical springs, and limiting posts.

[0007] Preferably, the mounting holes are formed on both outer surfaces of the second rectangular protective cover, the helical spring is located in the mounting holes, and the helical spring is fixed between one end of the limiting post and one end of the mounting hole.

[0008] Preferably, the outer wall of the limiting post and the mounting hole are in a sliding fit, and one end of the outer surface of the limiting post is elastically connected to one end of the mounting hole through a helical spring.

[0009] Preferably, when the helical spring is in its natural state, the end of the limiting post away from the helical spring extends out of the mounting hole; the limiting post can compress the helical spring and retract into the mounting hole under the action of external force, and reset under the elastic force of the helical spring after the external force is removed, and its extended end is used to engage with the locking hole.

[0010] Preferably, when the joints of the two sets of busbar trunking are connected by an external connector, and the first rectangular protective cover of one set and the second rectangular protective cover of the other set are engaged with the connecting arm by the limiting structure, the first rectangular sealing ring on the first rectangular protective cover and the first rectangular sealing ring on the second rectangular protective cover press against each other to form an end face seal.

[0011] Preferably, after the first rectangular protective cover and the second rectangular protective cover are connected, the second rectangular sealing ring inside the first rectangular protective cover seals between its inner wall and the outer wall of the busbar trunking where it is located, and at the same time, the second rectangular sealing ring inside the second rectangular protective cover seals between its inner wall and the outer wall of the busbar trunking where it is located.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a busbar trunking with a dustproof connector, which has the following beneficial effects: 1. This busbar trunking with a dustproof joint forms a double-sealing structure by setting a first rectangular sealing ring and a second rectangular sealing ring. When the first rectangular protective cover and the second rectangular protective cover are connected, the first rectangular sealing rings at their ends are squeezed against each other to form a tight end face seal, effectively preventing external dust and moisture from entering through the connection gap. At the same time, the second rectangular sealing ring in each protective cover seals between the inner wall of the protective cover and the outer wall of the busbar trunking, preventing dust from seeping into the joint area along the busbar trunking wall, thereby comprehensively ensuring the cleanliness and insulation safety of the joint connection.

[0013] 2. This busbar trunking with a dustproof connector uses a sliding cooperation between a slider and a groove for initial positioning and alignment, and achieves quick locking through the locking structure and the connecting arm. During installation, simply push the protective cover to the docking position, and the limiting post will automatically spring into the locking hole under the action of the helical spring to complete the fixation. During disassembly, simply press the limiting post manually to disengage it from the locking hole to slide the protective cover open. The entire process does not require any tools or tightening of multiple bolts, improving installation and maintenance efficiency, and is particularly suitable for operation in narrow or high-altitude environments where construction is difficult. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a busbar trunking with a dustproof connector according to the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the first rectangular protective cover and the second rectangular protective cover in a busbar trunking with a dustproof connector according to the present invention.

[0016] Figure 3 This is a top cross-sectional view of the second rectangular protective cover in a busbar trunking with a dustproof connector according to the present invention.

[0017] Figure 4 This is a schematic diagram of the structure of a busbar trunking with a dustproof joint after two sets of busbar trunking bodies are connected and sealed.

[0018] In the diagram: 1. Busbar trunking; 2. Connector; 3. First rectangular protective cover; 4. Second rectangular protective cover; 5. First rectangular sealing ring; 6. Slide groove; 7. Connecting arm; 8. Snap-fit ​​hole; 9. Limiting structure; 10. Slider; 11. Mounting hole; 12. Helical spring; 13. Limiting post; 14. Second rectangular sealing ring. Detailed Implementation

[0019] 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.

[0020] like Figure 1-4 As shown, this utility model provides a busbar trunking with dustproof connectors, including a busbar trunking body 1. Connectors 2 for connecting to another busbar trunking body are provided on the outer surfaces of both ends of the busbar trunking body 1. A first rectangular protective cover 3 is installed on the outer wall of one end of the busbar trunking body 1 via a sliding fit, and a second rectangular protective cover 4 is installed on the outer wall of the other end via a sliding fit. The first rectangular protective cover 3 is used to mate with the second rectangular protective cover 4 on another set of busbar trunking bodies 1, and the second rectangular protective cover 4 is used to mate with the first rectangular protective cover 3 on another set of busbar trunking bodies 1.

[0021] To facilitate the sliding guidance and initial positioning of the protective covers, sliding grooves 6 are provided at the midpoints of both the left and right ends of the upper outer surface of the busbar trough 1. Correspondingly, sliders 10 are fixedly installed at the midpoint of the upper left side of the inner cavity of the first rectangular protective cover 3 and the midpoint of the upper right side of the inner cavity of the second rectangular protective cover 4. The sliders 10 slide in conjunction with the sliding grooves 6, allowing the first rectangular protective cover 3 and the second rectangular protective cover 4 to slide smoothly along the length of the busbar trough 1.

[0022] To achieve rapid connection and locking during docking, connecting arms 7 are fixedly installed on the right ends of the outer surfaces of both sides of the first rectangular protective cover 3. Connecting arms 7 have snap-fit ​​holes 8 penetrating their outer surfaces. Limiting structures 9 are provided on the outer surfaces of both sides of the second rectangular protective cover 4. The limiting structure 9 includes mounting holes 11 on the side walls of the second rectangular protective cover 4, a helical spring 12 housed within the mounting holes 11, and a limiting post 13 with one end connected to the helical spring 12 and the other end extending out or retracting from the mounting holes 11. The outer wall of the limiting post 13 is in sliding fit with the mounting holes 11. One end of the helical spring 12 is fixed to the end of the limiting post 13, and the other end is fixed to the bottom of the mounting holes 11. When the helical spring 12 is in its natural state, the end of the limiting post 13 away from the helical spring 12 extends out of the mounting holes 11. When an external force is applied to press the limiting post 13, it compresses the helical spring 12 and retracts into the mounting hole 11; after the external force is removed, the limiting post 13 automatically returns to its original position and extends under the elastic force of the helical spring 12.

[0023] To ensure sealing performance, this invention employs two seals. The first seal is an end-face seal: a first rectangular sealing ring 5 is fixedly installed on the outer right surface of the first rectangular protective cover 3 and the outer left surface of the second rectangular protective cover 4. When the first rectangular protective cover 3 and the second rectangular protective cover 4 are joined, the first rectangular sealing rings 5 ​​on their end faces are pressed together, forming a tight end-face seal. The second seal is an inner wall seal: a second rectangular sealing ring 14 is fixedly installed on the left side of the inner wall of the first rectangular protective cover 3 and the right side of the inner wall of the second rectangular protective cover 4, with the second rectangular sealing ring 14 located on the side of the slider 10 closest to the first rectangular sealing ring 5. When the protective cover is installed in place, the second rectangular sealing ring 14 is compressed between the inner wall of the protective cover and the outer wall of the busbar trough 1, forming an inner wall seal.

[0024] The installation process of this utility model is as follows: 1. Connect the joints 2 of the two sections of busbar trunking 1 that need to be connected to each other through an external busbar trunking connector (not shown in the figure, which is the prior art).

[0025] 2. Push the first rectangular protective cover 3 installed on one section of the busbar trunking 1 and the second rectangular protective cover 4 installed on the other section of the busbar trunking 1 towards the joint position along the slide groove 6.

[0026] 3. During the pushing process, the first rectangular protective cover 3 and the second rectangular protective cover 4 slide in the slide groove 6 through the slider 10 to achieve initial centering.

[0027] 4. When the connecting arm 7 of the first rectangular protective cover 3 approaches the limiting structure 9 of the second rectangular protective cover 4, press the limiting posts 13 on both sides by hand to compress the helical spring 12 and retract it into the mounting hole 11.

[0028] 5. Continue pushing the protective cover until the snap-fit ​​hole 8 on the connecting arm 7 moves to the front of the limiting post 13.

[0029] 6. The elastic force of the helical spring 12 pushes the limiting post 13 to extend and engage with the locking hole 8 of the connecting arm 7, thereby achieving quick locking.

[0030] 7. At this point, the first rectangular sealing rings 5 ​​at the ends of the first rectangular protective cover 3 and the second rectangular protective cover 4 are tightly pressed together to form an end face seal; simultaneously, the second rectangular sealing rings 14 inside each protective cover are also compressed between the inner wall of the protective cover and the outer wall of the busbar trough 1, forming an inner wall seal. The double sealing structure effectively prevents dust, moisture, etc. from entering the joint area.

[0031] The disassembly process of this utility model is as follows: 1. Press the limiting posts 13 on both sides of the second rectangular protective cover 4 with your hands at the same time to disengage it from the snap-fit ​​hole 8 on the connecting arm 7.

[0032] 2. Slide the first rectangular protective cover 3 and the second rectangular protective cover 4 in opposite directions along the slide groove 6 to separate the protective covers and inspect or maintain the joint.

[0033] 3. The entire process requires no tools and is simple and quick to operate.

[0034] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] 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 busbar trunking with dustproof connectors, comprising a busbar trunking body (1), wherein connectors (2) are provided on the outer surfaces of both ends of the busbar trunking body (1), characterized in that: One end of the busbar trunking (1) is slidably fitted with a first rectangular protective cover (3), and the other end is slidably fitted with a second rectangular protective cover (4). The first rectangular protective cover (3) is used to dock with the second rectangular protective cover (4) on another set of busbar trunking (1), and the second rectangular protective cover (4) is used to dock with the first rectangular protective cover (3) on another set of busbar trunking (1). Sliding grooves (6) are provided at the middle of the left and right ends of the upper outer surface of the busbar trunking (1). Sliding blocks (10) that slide in cooperation with the sliding grooves (6) are fixedly installed at the middle of the left side of the upper end of the inner cavity of the first rectangular protective cover (3) and the middle of the right side of the upper end of the inner cavity of the second rectangular protective cover (4). Sliding blocks (10) that slide in cooperation with the sliding grooves (6) are fixedly installed on the left side of the inner wall of the first rectangular protective cover (3) and the right side of the inner wall of the second rectangular protective cover (4). A second rectangular sealing ring (14) is fixedly installed. The outer surface of the right end of the first rectangular protective cover (3) and the outer surface of the left end of the second rectangular protective cover (4) are both fixedly installed with the first rectangular sealing ring (5). The second rectangular sealing ring (14) is located on the side of the slider (10) close to the first rectangular sealing ring (5). A connecting arm (7) is fixedly installed on the right end of the outer surface of both sides of the first rectangular protective cover (3). A snap-fit ​​hole (8) is opened on the outer surface of one side of the connecting arm (7) away from the first rectangular protective cover (3). The snap-fit ​​hole (8) extends through to the outer surface of the other side of the connecting arm (7). A limit structure (9) is provided on the outer surface of both sides of the second rectangular protective cover (4). The limit structure (9) includes a mounting hole (11), a helical spring (12), and a limit post (13).

2. A busbar trunking with a dustproof connector according to claim 1, characterized in that: The mounting holes (11) are opened on both outer surfaces of the second rectangular protective cover (4). The helical spring (12) is located in the mounting holes (11) and is fixed between one end of the outer surface of the limiting post (13) and one end of the mounting hole (11).

3. A busbar trunking with a dustproof connector according to claim 2, characterized in that: The outer wall of the limiting post (13) and the mounting hole (11) are in sliding fit. One end of the outer surface of the limiting post (13) is elastically connected to one end of the mounting hole (11) through a helical spring (12).

4. A busbar trunking with a dustproof connector according to claim 3, characterized in that: When the helical spring (12) is in its natural state, the end of the limiting post (13) away from the helical spring (12) extends to the outside of the mounting hole (11); the limiting post (13) can compress the helical spring (12) under the action of external force and retract into the mounting hole (11), and after the external force is removed, it resets under the elastic force of the helical spring (12), and its extended end is used to engage with the snap-fit ​​hole (8).

5. A busbar trunking with a dustproof connector according to claim 1, characterized in that: When the connectors (2) of the two sets of busbar trunking (1) are connected by an external connector, and the first rectangular protective cover (3) of one set and the second rectangular protective cover (4) of the other set are engaged with the connecting arm (7) by the limiting structure (9), the first rectangular sealing ring (5) on the first rectangular protective cover (3) and the first rectangular sealing ring (5) on the second rectangular protective cover (4) are pressed against each other to form an end face seal.

6. A busbar trunking with a dustproof connector according to claim 5, characterized in that: After the first rectangular protective cover (3) and the second rectangular protective cover (4) are connected, the second rectangular sealing ring (14) inside the first rectangular protective cover (3) is sealed between its inner wall and the outer wall of the busbar trough (1) where it is located. At the same time, the second rectangular sealing ring (14) inside the second rectangular protective cover (4) is sealed between its inner wall and the outer wall of the busbar trough (1) where it is located.

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