Insulation tube bus connection structure for extension of multiple sections of buses

By designing components such as copper tube sockets, threaded sleeves, and octagonal rings, the problem of damage to the shielding layer during rotation in existing insulated copper tube busbar connection structures has been solved, enabling convenient and stable multi-section busbar expansion connections and enhancing connection tightness and convenience.

CN224264642UActive Publication Date: 2026-05-19TIANJIN ANJIE PUBLIC FACILITIES SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN ANJIE PUBLIC FACILITIES SERVICE CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing insulated copper tube busbar connection structure is prone to damage to the shielding layer when using bolts, resulting in inconvenient connection and the need to add an additional shielding layer to achieve the insulation effect.

Method used

The design incorporates components such as copper tube base, threaded sleeve, octagonal ring, cylinder base, slide cylinder, slotted ring, rocker arm, rack base, and hexagonal head screw. It achieves convenient connection through screwing and rotation, avoids damage to the shielding layer, and utilizes flange rings and rubber rings to improve the fastening effect.

Benefits of technology

It enables convenient connection and stable fixation of insulated busbars, avoids damage to the shielding layer, and improves the tightness and convenience of the connection.

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Abstract

The utility model relates to the technical field of insulating tube bus connecting structures, in particular to an insulating tube bus connecting structure for expansion of multiple sections of buses, which comprises a sleeve A and a sleeve B. A copper tube seat A inserted with a copper tube bus main body is assembled on the inner side of the sleeve A, and a copper tube seat B inserted with the copper tube bus main body is assembled on the inner side of the sleeve B. The copper tube seat A is connected with the copper tube bus main body. A threaded sleeve in threaded connection with the copper pipe seat A is integrally constructed at one end, close to the copper pipe seat A, of the copper pipe seat B; the linear ring can move along the sliding barrel under the action of screwing force, the linear ring provides thrust for the rack seats through the tilting rods hinged to the peripheries of the lug blocks and enables the rack seats to move outwards under the reverse thrust of the barrel seat, and the multiple sets of rack seats on the periphery of the sliding barrel can be opened and abut against the inner periphery of the copper pipe bus body. Therefore, the copper pipe bus main body can be stably connected with the sleeve A and the sleeve B, and a shielding layer on the periphery of the copper pipe bus main body is not affected.
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Description

Technical Field

[0001] This utility model relates to the technical field of insulated tube busbar connection structure, specifically to an insulated tube busbar connection structure for multi-section busbar expansion. Background Technology

[0002] Insulated copper tube busbars are busbar products that use copper tubes as conductors and external insulation. They are used in power plants and substations. Insulated copper tube busbars have characteristics such as high current (currently up to 12000A), high mechanical strength, good insulation, and wide applicability, so they are increasingly recognized and accepted by customers. Patent number CN202220892769.9 discloses a new type of connection structure for insulated copper tube busbars. One end of the insulated copper tube busbar is inserted into a bushing and passes through a connecting plate, set inside the connecting pipe. The insulated copper tube busbar is then fixed inside the bushing by bolts on its outer circumference. One end of the second connecting pipe is inserted into the second sleeve and passes through the second connecting plate, set inside the second connecting pipe. Bolts on the outer circumference of the second sleeve fix the insulated copper busbar inside the second sleeve. The first connecting pipe is inserted into the insertion slot of the second connecting pipe, and then bolts three are used to fix the first connecting pipe and the second connecting pipe together, thus completing the connection between the first and second insulated copper busbars. However, in the process of using the insulated busbar connection structure, using bolts screwed into the sleeve and the inside of the insulated busbar for locking and fixing can easily damage the outer shielding layer of the insulated busbar. After connection, an additional shielding layer needs to be added to the outer circumference of the connection structure to achieve insulation, which is not convenient in operation. Therefore, we propose an insulated busbar connection structure for multi-segment busbar expansion. Utility Model Content

[0003] To address the problems in the existing technology, this utility model provides an insulated tube busbar connection structure for multi-segment busbar expansion.

[0004] The technical solution adopted by this utility model to solve its technical problem is an insulated tube busbar connection structure for multi-section busbar expansion, including sleeve A and sleeve B. The inner side of sleeve A is equipped with a copper tube seat A that is inserted into the copper tube busbar body, and the inner side of sleeve B is equipped with a copper tube seat B that is inserted into the copper tube busbar body. The end of the copper tube seat B near the copper tube seat A is integrally constructed with a threaded sleeve that is screwed into the copper tube seat A. The outer periphery of sleeve A and the outer periphery of sleeve B are integrally constructed with an octagonal ring for rotation.

[0005] Both copper tube seat A and copper tube seat B have a support cylinder engaged on their inner sides, and the outer wall surface of the cylinder seat is integrally constructed with a support slide cylinder. An adjustment ring is slidably installed on the inner side of the slide cylinder. Both the inner sides of copper tube seat A and copper tube seat B are rotatably installed with hexagonal head screws that are screwed into the ring. The opposite side of the ring and the cylinder seat is integrally constructed with an adjustment lug, and there are multiple sets of lugs. The outer periphery of each lug is hinged to a rocker arm for transmission via a rotating shaft. A rack seat for limiting the position is hinged between each set of rocker arms via a rotating shaft.

[0006] By adopting the above technical solution, in the process of using the insulated tube busbar connection structure for multi-section busbar expansion, bushing A and bushing B can be respectively inserted into two sets of interconnected copper tube busbar bodies, and the copper tube seat A inside bushing A and the copper tube seat B inside bushing B can be respectively connected to the corresponding copper tube busbar bodies. The threaded sleeve on the outer periphery of the copper tube seat B is screwed into the copper tube seat A, which facilitates the connection of bushing A and bushing B and enables the two sets of connected copper tube busbar bodies to connect with each other and form a circuit. The octagonal ring on the outer periphery of bushing A and bushing B makes it easier to rotate and disassemble.

[0007] When copper tube socket A or copper tube socket B is inserted into the copper tube busbar body, the hexagonal head on the hexagonal screw inside copper tube socket A or copper tube socket B can be rotated, so that the screw part located inside the slide cylinder can rotate and engage with the slotted ring sliding on the outer circumference of the slide cylinder. Under the force of the engagement, the slotted ring can move along the slide cylinder. The slotted ring then provides thrust to the rack seat through the rocker arm hinged to the outer circumference of the lug, and under the reverse thrust of the cylinder seat, the rack seat moves outward. The multiple sets of rack seats on the outer circumference of the slide cylinder can open and abut against the inner circumference of the copper tube busbar body, thereby performing auxiliary limiting and fixing. This allows the copper tube busbar body to be stably connected to sleeve A and sleeve B without affecting the outer shielding layer.

[0008] Specifically, both copper tube seat A and copper tube seat B have washers rotatably mounted on their opposite sides, which are connected to hexagonal head screws, and adjusting screws for limiting the position are screwed onto the outer periphery of the washers.

[0009] By adopting the above technical solution, the position of the washer remains unchanged when the hexagonal head screw is not rotated. Then, the adjusting screw can be taken out and screwed into the hole on the outer circumference of the washer, and at the same time, it can be screwed into the preset screw hole on copper tube seat A or copper tube seat B. This facilitates the auxiliary limiting and fixing of the position of the hexagonal head screw, so that it will not rotate automatically.

[0010] Specifically, each of the two sets of octagonal rings has a flange ring for auxiliary positioning rotatably mounted on its opposite side, and flange bolts for fastening are assembled between the two sets of flange rings. There are multiple sets of flange bolts, and a protective rubber ring is snapped between the two sets of flange rings.

[0011] By adopting the above technical solution, when sleeve A and sleeve B are connected to each other, the outer flange rings of both can be rotated so that the holes on the flange rings correspond to each other and the flange bolts can pass through, making it convenient to tighten the two sets of flange rings. This facilitates auxiliary limiting and fixing between sleeve A and sleeve B, thereby improving the tightening effect after the connection between the two. At the same time, the rubber ring can provide auxiliary support, which helps to improve the tightness of the connection between the two sets of flange rings.

[0012] Specifically, the side of the sleeve A near the sleeve B has an integrally constructed inclined ring that fits into the sleeve B.

[0013] By adopting the above technical solution, the inclined ring body on the outer periphery of casing A and casing B fit together and can improve the tightness of casing A and casing B after they are connected.

[0014] Specifically, the outer periphery of the rack seat is bonded with a rubber pad for anti-slip purposes.

[0015] By adopting the above technical solution, the rubber pad has good anti-slip performance and can improve the stability when the rack seat and the inner circumference of the copper tube busbar body abut against each other, thereby improving the fastening effect.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The technical solution of this application, through the design of copper tube socket A, copper tube socket B, threaded sleeve and copper tube bus body, allows for the use of the insulated tube bus connection structure for multi-section bus expansion. Sleeve A and sleeve B can be respectively inserted into two sets of interconnected copper tube bus bodies. The copper tube socket A inside sleeve A and the copper tube socket B inside sleeve B can be respectively connected to the corresponding copper tube bus body. The threaded sleeve on the outer periphery of copper tube socket B is screwed into copper tube socket A, which facilitates the connection of sleeve A and sleeve B and enables the two sets of connected copper tube bus bodies to connect and form a circuit. The octagonal rings on the outer periphery of sleeve A and sleeve B make rotation more convenient and facilitate disassembly and assembly.

[0018] 2. The technical solution of this application, through the design of a cylinder seat, a sliding cylinder, a slotted ring, an ear block, a rocker arm, a rack seat, and a hexagonal head screw, allows the hexagonal head on the hexagonal head screw inside the copper tube seat A or B to rotate when the copper tube seat A or B is inserted into the copper tube busbar body. This allows the screw part located inside the sliding cylinder to rotate and engage with the slotted ring sliding on the outer circumference of the sliding cylinder. Under the force of the engagement, the slotted ring can move along the sliding cylinder. The slotted ring then provides thrust to the rack seat through the rocker arm hinged to the outer circumference of the ear block. Under the reverse thrust of the cylinder seat, the rack seat moves outward. The multiple sets of rack seats on the outer circumference of the sliding cylinder can open and abut against the inner circumference of the copper tube busbar body, thereby providing auxiliary limiting and fixing. This ensures that the copper tube busbar body can be stably connected to sleeve A and sleeve B without affecting the outer shielding layer. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is an isometric view of the present invention;

[0021] Figure 2 This is a schematic plan view of the connection structure between sleeve A and sleeve B of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the single-ring and the slide cylinder of this utility model;

[0023] In the diagram: 1. Sleeve A; 2. Sleeve B; 3. Copper tube seat A; 4. Copper tube seat B; 5. Threaded sleeve; 6. Cylinder seat; 7. Slide cylinder; 8. Slotted ring; 9. Ear block; 10. Rocker arm; 11. Rack seat; 12. Hexagonal head screw; 13. Washer; 14. Adjusting screw; 15. Rubber gasket; 16. Inclined ring body; 17. Octagonal ring; 18. Flange ring; 19. Flange bolt; 20. Rubber ring; 21. Copper tube busbar 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] Please see Figure 1-3This utility model provides a technical solution: an insulated busbar connection structure for multi-segment busbar expansion, including a bushing A1 and a bushing B2. A copper tube seat A3, which is inserted into the main body 21 of the copper busbar, is fitted inside the bushing A1. A copper tube seat B4, which is also inserted into the main body 21 of the copper busbar, is fitted inside the bushing B2. A threaded sleeve 5, which is screwed onto the end of the copper tube seat B4 near the copper tube seat A3, is integrally constructed. An octagonal ring 17 for rotation is integrally constructed on the outer periphery of both the bushing A1 and the bushing B2. The copper tube seats A3 and B4... The inner side is fitted with a support cylinder seat 6, and the outer wall surface of the cylinder seat 6 is integrally constructed with a support slide cylinder 7. The inner side of the slide cylinder 7 is slidably installed with a slotted ring 8 for adjustment. The inner side of the copper tube seat A3 and the inner side of the copper tube seat B4 are both rotatably installed with hexagonal head screws 12 that are screwed into the slotted ring 8. The opposite side of the slotted ring 8 and the cylinder seat 6 is integrally constructed with an adjustment lug 9, and there are multiple sets of lugs 9. The outer periphery of the lugs 9 is hinged to a rocker arm 10 for transmission through a rotating shaft. The two sets of rocker arms 10 are hinged to a rack seat 11 for limiting through a rotating shaft.

[0026] In use, during the process of using the insulated tube busbar connection structure for multi-section busbar expansion, bushing A1 and bushing B2 can be inserted into two sets of interconnected copper tube busbar bodies 21 respectively. The copper tube seat A3 inside bushing A1 and the copper tube seat B4 inside bushing B2 can be connected to the corresponding copper tube busbar bodies 21 respectively. The threaded sleeve 5 on the outer periphery of the copper tube seat B4 is screwed into the copper tube seat A3, which facilitates the connection of bushing A1 and bushing B2 and enables the two sets of connected copper tube busbar bodies 21 to connect and form a circuit. The octagonal ring 17 on the outer periphery of bushing A1 and bushing B2 makes it easier to rotate and disassemble.

[0027] When copper tube socket A3 or copper tube socket B4 is inserted into the copper tube bus body 21, the hexagonal head on the hexagonal head screw 12 inside copper tube socket A3 or copper tube socket B4 can be rotated, so that the screw part located inside the slide cylinder 7 can rotate and engage with the slotted ring 8 sliding on the outer periphery of the slide cylinder 7. Under the force of the engagement, the slotted ring 8 can move along the slide cylinder 7. The slotted ring 8 provides a thrust to the rack seat 11 through the rocker arm 10 hinged to the outer periphery of the lug 9, and under the reverse thrust of the cylinder seat 6, the rack seat 11 moves outward. The multiple sets of rack seats 11 on the outer periphery of the slide cylinder 7 can open and abut against the inner periphery of the copper tube bus body 21, thereby performing auxiliary limiting and fixing, so that the copper tube bus body 21 can be stably connected to the sleeve A1 and sleeve B2 without affecting the shielding layer on its outer periphery.

[0028] like Figure 2As shown, both copper tube seat A3 and copper tube seat B4 have washers 13 rotatably mounted on their opposite sides, which are connected to hexagonal head screws 12, and adjusting screws 14 for limiting are screwed onto the outer periphery of the washers 13.

[0029] When in use, the position of the washer 13 remains unchanged when the hexagonal head screw 12 is not rotated. Then, the adjusting screw 14 is taken out and can be screwed into the hole on the outer circumference of the washer 13 and can also be screwed into the preset screw hole on the copper tube seat A3 or copper tube seat B4. This facilitates the auxiliary limiting and fixing of the position of the hexagonal head screw 12, so that it will not rotate automatically.

[0030] like Figure 1 and Figure 2 As shown, two sets of octagonal rings 17 are rotatably mounted on opposite sides with flange rings 18 for auxiliary positioning, and flange bolts 19 for fastening are assembled between the two sets of flange rings 18. There are multiple sets of flange bolts 19, and rubber rings 20 for protection are snapped between the two sets of flange rings 18.

[0031] When in use, when sleeve A1 and sleeve B2 are connected to each other, the outer flange rings 18 of both can be rotated so that the holes on the flange rings 18 correspond to each other and the flange bolts 19 can pass through, making it convenient to tighten the two sets of flange rings 18. This facilitates auxiliary limiting and fixing between sleeve A1 and sleeve B2, thereby improving the tightening effect after the connection between the two. At the same time, the rubber ring 20 facilitates auxiliary support, which helps to improve the tightness of the connection between the two sets of flange rings 18.

[0032] like Figure 2 As shown, the side of sleeve A1 near sleeve B2 has an integrally constructed inclined ring body 16 that fits into sleeve B2.

[0033] When in use, the inclined ring 16 on the outer periphery of sleeve A1 fits into sleeve B2 and can improve the tightness of the connection between sleeve A1 and sleeve B2.

[0034] like Figure 2 As shown, a rubber pad 15 for anti-slip is bonded to the outer periphery of the rack seat 11.

[0035] When in use, the rubber pad 15 has good anti-slip properties and can improve the stability when the rack seat 11 and the inner circumference of the copper tube bus body 21 abut against each other, thereby improving the fastening effect.

[0036] The working principle and usage process of this utility model are as follows: In use, first, install the corresponding structural components in suitable positions. During the use of the insulated busbar connection structure for multi-section busbar expansion, sleeve A1 and sleeve B2 can be respectively inserted into two sets of interconnected copper busbar bodies 21. Furthermore, the copper tube seat A3 inside sleeve A1 and the copper tube seat B4 inside sleeve B2 can be respectively connected to the corresponding copper busbar bodies 21. The threaded sleeve 5 on the outer periphery of copper tube seat B4 is screwed into copper tube seat A3, facilitating the connection between sleeve A1 and sleeve B2 and enabling the two sets of interconnected copper busbar bodies 21 to connect and form a circuit. The octagonal rings 17 on the outer periphery of tube A1 and sleeve B2 make rotation easier and facilitate disassembly and assembly. When copper tube seat A3 or copper tube seat B4 is inserted into the copper tube busbar body 21, the hexagonal head on the hexagonal head screw 12 inside copper tube seat A3 or copper tube seat B4 can be rotated, allowing the screw part located inside the slide cylinder 7 to rotate and engage with the slotted ring 8 sliding on the outer periphery of the slide cylinder 7. This allows the slotted ring 8 to move along the slide cylinder 7 under the force of the engagement. The slotted ring 8 then provides thrust to the rack seat 11 through the rocker arm 10 hinged to the outer periphery of the lug 9, and under the reverse thrust of the cylinder seat 6, the rack seat 11 moves outward, and the slide cylinder 7... The multiple sets of rack seats 11 on the outer periphery can open and abut against the inner periphery of the copper busbar body 21, thereby providing auxiliary limiting and fixing. This allows the copper busbar body 21 to be stably connected to sleeves A1 and B2 without affecting its outer shielding layer. When the hexagonal head screw 12 is not rotated, the position of the washer 13 remains unchanged. Then, the adjusting screw 14 can be taken and screwed into the hole on the outer periphery of the washer 13, and simultaneously into the pre-set screw hole on the copper tube seat A3 or copper tube seat B4. This facilitates auxiliary limiting and fixing of the position of the hexagonal head screw 12, preventing it from rotating automatically. Subsequently, when sleeves A1 and B2 are connected... The flange rings 18 on both outer circumferences can be rotated so that the holes on the flange rings 18 correspond to each other and the flange bolts 19 can pass through, making it easy to tighten the two sets of flange rings 18. This facilitates auxiliary limiting and fixing between sleeve A1 and sleeve B2, thereby improving the tightness of the connection between the two. At the same time, the rubber ring 20 provides auxiliary support, which helps to improve the tightness of the connection between the two sets of flange rings 18. It also allows sleeve A1 and sleeve B2 to be stably connected to the copper busbar body 21 and complete the docking work. Then, the gaps between sleeve A1 and sleeve B2 and the copper busbar body 21 are bound and sealed with insulating tape to complete the waterproofing operation.

[0037] 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 descriptions of the above embodiments and specifications 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 protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An insulated conduit busbar connection structure for multi-segment busbar expansion, characterized in that, Includes sleeve A (1) and sleeve B (2). Sleeve A (1) is fitted with a copper tube seat A (3) that is inserted into the copper tube bus body (21) and sleeve B (2) is fitted with a copper tube seat B (4) that is inserted into the copper tube bus body (21). The end of the copper tube seat B (4) near the copper tube seat A (3) is integrally constructed with a threaded sleeve (5) that is screwed into the copper tube seat A (3). The outer periphery of sleeve A (1) and the outer periphery of sleeve B (2) are integrally constructed with an octagonal ring (17) for rotation. Both copper tube seat A (3) and copper tube seat B (4) are fitted with a support cylinder seat (6) on their inner sides. The outer wall surface of the cylinder seat (6) is integrally constructed with a support slide cylinder (7). The inner side of the slide cylinder (7) is slidably installed with a single-ring ring (8) for adjustment. Both the inner side of copper tube seat A (3) and copper tube seat B (4) are rotatably installed with a hexagonal head screw (12) that is screwed into the single-ring ring (8). The opposite side of the single-ring ring (8) and the cylinder seat (6) is integrally constructed with an adjustment lug (9). There are multiple sets of lugs (9). The outer periphery of the lugs (9) is hinged with a rocker arm (10) for transmission through a rotating shaft. The two sets of rocker arms (10) are hinged with a rack seat (11) for limiting position through a rotating shaft.

2. The insulated conduit busbar connection structure for multi-segment busbar expansion according to claim 1, characterized in that, Both copper tube seat A (3) and copper tube seat B (4) are rotatably mounted with washers (13) connected to hexagonal head screws (12) on opposite sides, and adjusting screws (14) for limiting are screwed onto the outer periphery of the washers (13).

3. The insulated conduit busbar connection structure for multi-segment busbar expansion according to claim 1, characterized in that, Both sets of octagonal rings (17) are rotatably mounted with flange rings (18) for auxiliary positioning on opposite sides, and flange bolts (19) for fastening are assembled between the two sets of flange rings (18), and there are multiple sets of flange bolts (19). A protective rubber ring (20) is snapped between the two sets of flange rings (18).

4. The insulated conduit busbar connection structure for multi-segment busbar expansion according to claim 1, characterized in that, The side of the sleeve A (1) near the sleeve B (2) is integrally constructed with an inclined ring (16) that fits into the sleeve B (2).

5. The insulated conduit busbar connection structure for multi-segment busbar expansion according to claim 1, characterized in that, The outer periphery of the rack seat (11) is bonded with a rubber pad (15) for anti-slip.