Bus duct shell and bus duct sealing structure

Abstract

The utility model relates to the technical field of bus ducts, and discloses a bus duct shell and a bus duct sealing structure, the bus duct shell comprises a bus duct body, a first butt joint frame and a second butt joint frame, when a connecting rack is inserted into a through hole in the first butt joint frame, the connecting rack can be engaged with a transmission gear so as to drive the transmission gear to rotate; the transmission gear drives the locking rack to circumferentially move towards the direction of the second butt joint block, so that the locking rack is inserted into a locking groove in the second butt joint block, and a tooth groove in the bottom of a pressing block in the locking groove is meshed with a self-locking tooth block at the top of the locking rack, so that the position of the locking rack is limited; according to the butt-joint device, the first butt-joint block and the second butt-joint block are arranged on the first butt-joint frame, then locking and fixing of the position between the first butt-joint block and the second butt-joint block are achieved, butt joint of the first butt-joint frame and the second butt-joint frame is completed, meanwhile, through sealing strips on the first butt-joint frame and the second butt-joint frame, the sealing strips can be extruded when the first butt-joint frame and the second butt-joint frame get close to each other, and then the sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bus ducts, in particular to a bus duct housing and a bus duct sealing structure. Background Technique

[0002] A bus duct is a closed metal device composed of copper or aluminum busbars, used to distribute relatively high power to each component of a decentralized system. It has increasingly replaced wire and cable in indoor low-voltage power transmission trunk line engineering projects;

[0003] It is known that the Chinese publicly authorized invention: (Publication No. 201920205706.X) discloses a bus duct housing and a bus duct sealing structure, including a bus duct main body and an L-shaped connecting piece. An L-shaped connecting piece is arranged at the low end of the bus duct main body. The L-shaped connecting piece is connected to the bus duct main body through a plurality of shock absorption mechanisms. Threaded rods are inserted through both ends of the cross bar of the L-shaped connecting piece, and nuts are threadedly connected to one ends of the threaded rods passing through the L-shaped connecting piece. In the utility model, through the slider and the dovetail groove, the sleeve body can be slid, so that the sleeve body covers the connection between the bus ducts. Through the limiting block and the second limiting rod, in cooperation with the second spring and the first limiting groove, the sleeve body can be fixed at the connection between the bus ducts. Through this setting, the connection between the bus ducts can be in a sealed state, and the operation is simple;

[0004] The above solution still has the problem that it is difficult to seal the connection of the bus duct, which easily causes dust and water to enter the interior, reducing the safety. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a bus duct housing and a bus duct sealing structure to solve the above technical problems.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solutions: a busbar trunking housing and a busbar trunking sealing structure, including a busbar trunking body, a first docking frame and a second docking frame. The first docking frame and the second docking frame are respectively arranged at one end of two mutually approaching busbar trunking bodies. At the tops of the first docking frame and the second docking frame, there are arranged a first docking block and a second docking block. A transmission cavity is formed in the first docking block. A locking rack is slidably arranged in the transmission cavity. A transmission gear meshing with the locking rack is rotatably installed in the transmission cavity. On one side of the first docking block close to the second docking block, there are two through holes communicating with the transmission cavity and adapted to the locking rack. On one side of the second docking block close to the first docking block, a connecting rack capable of meshing with the transmission gear is installed. A locking groove adapted to the locking rack is formed on the second docking block. Along the circumference of the top of the locking rack, a plurality of self-locking tooth blocks are uniformly arranged. On the inner wall of the top of the locking groove, a receiving groove is formed. A pressing block is slidably arranged in the receiving groove. A plurality of tooth grooves adapted to the self-locking tooth blocks are formed at the bottom of the pressing block. At the top of the pressing block, there is an adjusting handle penetrating through the receiving groove and extending to the outside.

[0009] Preferably, a return spring is sleeved on the adjusting handle. One end of the return spring is installed on the pressing block, and the other end of the return spring is installed on the inner wall of the top of the receiving groove.

[0010] Preferably, on one side of the first docking frame and the second docking frame close to each other, there are grooves, and sealing strips are arranged in the grooves.

[0011] Preferably, on one side of the first docking frame close to the second docking frame, a guiding slot is formed, and a guiding rod adapted to the guiding slot is arranged on the second docking frame.

[0012] Preferably, on the inner wall of the top of the receiving groove, a sliding hole communicating with the outside is formed, and the connecting rod section of the adjusting handle is slidably arranged in the sliding hole.

[0013] Preferably, two symmetrically arranged limiting sliding grooves are formed in the transmission cavity. Limiting sliding blocks are slidably arranged in the limiting sliding grooves, and the two limiting sliding blocks are symmetrically arranged on both sides of the locking rack.

[0014] Preferably, on one side of the first docking frame and the second docking frame close to each other, there are slots for docking between busbar trunkings.

[0015] Compared with the prior art, the present utility model provides a busbar trunking housing and a busbar trunking sealing structure, having the following beneficial effects:

[0016] 1. Through the mutual cooperation of the first docking frame, the second docking frame, the first docking block and the second docking block provided in the utility model, when docking two busbar trough bodies, the first docking frame can be docked with the second docking frame. At this time, the connecting rack on the second docking block can be inserted into the through hole on the first docking frame and meshed with the transmission gear, thereby driving the transmission gear to rotate. The transmission gear drives the locking rack to move circumferentially towards the direction of the second docking block, so that the locking rack is inserted into the locking groove on the second docking block, and the tooth groove at the bottom of the pressing block in the locking groove meshes with the self-locking tooth block at the top of the locking rack, thereby restricting the position of the locking rack, and further realizing the locking and fixing of the positions between the first docking block and the second docking block, and completing the docking of the first docking frame and the second docking frame. At the same time, through the sealing strips on the first docking frame and the second docking frame, the sealing strips can be extruded when the first docking frame and the second docking frame approach each other, thereby achieving a sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 is a schematic cross-sectional structure diagram of structures such as the locking rack, the pressing block and the adjusting handle of the utility model;

[0019] Figure 3 of the utility model Figure 2 is an enlarged schematic diagram of the structure at A in;

[0020] Figure 4 is a schematic cross-sectional structure diagram of structures such as the transmission gear, the locking rack and the connecting rack of the utility model;

[0021] Figure 5 is a schematic cross-sectional structure diagram of structures such as the guide plug and the guide slot of the utility model.

[0022] Wherein: 1. First docking frame; 2. Second docking frame; 3. First docking block; 4. Second docking block; 5. Transmission cavity; 6. Locking rack; 7. Groove; 8. Sealing strip; 9. Transmission gear; 10. Connecting rack; 11. Busbar trough body; 12. Locking groove; 13. Guide plug; 14. Guide slot; 15. Slide hole; 16. Receiving groove; 17. Pressing block; 18. Tooth groove; 19. Return spring; 20. Adjusting handle; 21. Self-locking tooth block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following further describes in detail the embodiments of the utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0024] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Please refer to Figures 1-5 , a busbar trunking housing and a busbar trunking sealing structure, comprising a busbar trunking body 11, a first docking frame 1 and a second docking frame 2. The first docking frame 1 and the second docking frame 2 are respectively arranged at one end of two mutually approaching busbar trunking bodies 11. At the tops of the first docking frame 1 and the second docking frame 2, a first docking block 3 and a second docking block 4 are arranged. A transmission cavity 5 is formed in the first docking block 3. A locking rack 6 is slidably arranged in the transmission cavity 5. A transmission gear 9 meshing with the locking rack 6 is rotatably installed in the transmission cavity 5. On one side of the first docking block 3 close to the second docking block 4, two through holes communicating with the transmission cavity 5 and adapted to the locking rack 6 are formed. On one side of the second docking block 4 close to the first docking block 3, a connecting rack 10 capable of meshing with the transmission gear 9 is installed. A locking groove 12 adapted to the locking rack 6 is formed in the second docking block 4. A plurality of self-locking tooth blocks 21 are uniformly arranged along the circumferential direction at the top of the locking rack 6. A receiving groove 16 is formed on the top inner wall of the locking groove 12. A pressing block 17 is slidably arranged in the receiving groove 16. A plurality of tooth grooves 18 adapted to the self-locking tooth blocks 21 are formed at the bottom of the pressing block 17. An adjusting handle 20 penetrating through the receiving groove 16 and extending to the outside is arranged at the top of the pressing block 17. Grooves 7 are formed on one side of the first docking frame 1 and the second docking frame 2 close to each other. A sealing strip 8 is arranged in the grooves 7.

[0027] By setting the mutual cooperation of the first docking frame 1, the second docking frame 2, the first docking block 3 and the second docking block 4, when docking two busbar bodies 11, the first docking frame 1 can be docked with the second docking frame 2. At this time, the connecting rack 10 on the second docking block 4 can be inserted into the through hole on the first docking frame 1 and meshed with the transmission gear 9, thereby driving the transmission gear 9 to rotate, and driving the locking rack 6 to move circumferentially towards the second docking block 4 through the transmission gear 9, so that the locking rack 6 is inserted into the locking groove 12 on the second docking block 4, and the tooth groove 18 at the bottom of the pressing block 17 in the locking groove 12 is meshed with the self-locking tooth block 21 at the top of the locking rack 6, thereby restricting the position of the locking rack 6, and further realizing the locking and fixing of the positions between the first docking block 3 and the second docking block 4, and completing the docking of the first docking frame 1 and the second docking frame 2. At the same time, through the sealing strips 8 on the first docking frame 1 and the second docking frame 2, the sealing strips 8 can be squeezed when the first docking frame 1 and the second docking frame 2 approach each other, thereby realizing the sealing effect.

[0028] Specifically, in this embodiment, a return spring 19 is sleeved on the adjusting handle 20. One end of the return spring 19 is installed on the pressing block 17, and the other end of the return spring 19 is installed on the top inner wall of the receiving groove 16.

[0029] By arranging the return spring 19, when the locking rack 6 is inserted into the locking groove 12, the inclined surface of the self-locking tooth block 21 contacts the pressing block 17, thereby pushing the pressing block 17 to rise vertically along the receiving groove 16. When the tooth groove 18 at the bottom of the pressing block 17 is aligned with the self-locking tooth block 21, the elastic potential energy of the return spring 19 can be used to push the pressing block 17 to automatically descend and press tightly against the locking rack 6, thereby completing the self-locking process of the locking rack 6 in the locking groove 12.

[0030] Specifically, in this embodiment, a guiding slot 14 is opened on one side of the first docking frame 1 close to the second docking frame 2, and a guiding insertion rod 13 adapted to the guiding slot 14 is arranged on the second docking frame 2.

[0031] By arranging the guiding insertion rod 13 and the guiding slot 14, when the first docking frame 1 and the second docking frame 2 are docked, the guiding insertion rod 13 can be inserted into the guiding slot first, thereby completing the guiding during the docking of the first docking frame 1 and the second docking frame 2, and facilitating the alignment when the first docking frame 1 and the second docking frame 2 are docked.

[0032] Specifically, in this embodiment, a sliding hole 15 communicating with the outside is opened on the top inner wall of the receiving groove 16, and the connecting rod section of the adjusting handle 20 is slidably arranged in the sliding hole 15, so that the adjusting handle 20 can slide along the sliding hole 15 to guide the moving direction of the adjusting handle 20.

[0033] Specifically, in this embodiment, two symmetrically arranged limiting chutes are formed in the transmission cavity 5. Limiting sliders are slidably arranged in the limiting chutes. The two limiting sliders are symmetrically arranged on both sides of the locking rack 6. When the locking rack 6 slides in the transmission cavity 5, the limiting sliders can be driven to slide along the limiting chutes, guiding the moving direction of the locking rack 6 and restricting the moving range of the locking rack 6 at the same time.

[0034] Specifically, in this embodiment, on the sides where the first docking frame 1 and the second docking frame 2 are close to each other, slots for docking between busbars are formed.

[0035] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A busbar trunking housing and a busbar trunking sealing structure, comprising a busbar trunking body, a first docking frame and a second docking frame, characterized in that: The first docking frame and the second docking frame are respectively arranged at one end of two busbar troughs close to each other. At the top of the first docking frame and the second docking frame, a first docking block and a second docking block are arranged. A transmission cavity is opened in the first docking block. A locking rack is slidably arranged in the transmission cavity. A transmission gear meshing with the locking rack is rotatably installed in the transmission cavity. Two through holes communicating with the transmission cavity and adapted to the locking rack are opened on one side of the first docking block close to the second docking block. A connecting rack capable of meshing with the transmission gear is installed on one side of the second docking block close to the first docking block. A locking groove adapted to the locking rack is opened on the second docking block. A plurality of self-locking tooth blocks are uniformly arranged along the circumferential direction at the top of the locking rack. A receiving groove is opened on the top inner wall of the locking groove. A pressing block is slidably arranged in the receiving groove. A plurality of tooth grooves adapted to the self-locking tooth blocks are opened at the bottom of the pressing block. An adjusting handle penetrating through the receiving groove and extending to the outside is arranged at the top of the pressing block.

2. The busbar trunking housing and busbar trunking sealing structure according to claim 1, characterized in that: A return spring is sleeved on the adjusting handle. One end of the return spring is installed on the pressing block, and the other end of the return spring is installed on the top inner wall of the receiving groove.

3. A busbar trunking housing and a busbar trunking sealing structure according to claim 1, characterized in that: Grooves are opened on one side of the first docking frame and the second docking frame close to each other, and sealing strips are arranged in the grooves.

4. A busbar trunking housing and a busbar trunking sealing structure according to claim 1, characterized in that: A guiding slot is opened on one side of the first docking frame close to the second docking frame, and a guiding insertion rod adapted to the guiding slot is arranged on the second docking frame.

5. A busbar trunking housing and a busbar trunking sealing structure according to claim 1, characterized in that: A sliding hole communicating with the outside is opened on the top inner wall of the receiving groove, and the connecting rod section of the adjusting handle is slidably arranged in the sliding hole.

6. The busbar trunking housing and busbar trunking sealing structure according to claim 1, characterized in that: Two symmetrically arranged limiting sliding grooves are opened in the transmission cavity, and limiting sliding blocks are slidably arranged in the limiting sliding grooves. The two limiting sliding blocks are symmetrically arranged on both sides of the locking rack.

7. A busbar trunking housing and a busbar trunking sealing structure according to claim 1, characterized in that: Grooves for docking between the busbar troughs are opened on one side of the first docking frame and the second docking frame close to each other.

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