Tubular busbar butt joint mechanical connection device

Abstract

The utility model discloses a tubular bus butt joint mechanical connection device, which relates to the technical field of tubular bus connection and comprises symmetrical hoops fixed at the joints of tubular buses, and the outer sides of the hoops are abutted against quick-release locking pieces which are symmetrically arranged. The quick-release locking piece on one side is provided with a bend, the two ends of the quick-release locking piece abut against and are buckled to the outer side of the hoop, a through hole is formed in the middle of the quick-release locking piece on one side, quick-release connection is achieved through an adjusting screw rod, an adjusting nut and a fastening handle are arranged at the two ends of the adjusting screw rod respectively, and the fastening handle is provided with an eccentric fixing pin. The fastening handle side of the quick-release locking piece is provided with an arc groove matched with the fastening handle in a rotating mode, and the end of the fastening handle is connected with a fixed locking cover through a locking ring. The utility model provides a tubular bus butt joint mechanical connecting device, which is convenient to mount and dismount, has small damage to tubular buses and connecting pieces, can be repeatedly used, and can effectively improve the reliability and the stability of tubular bus connection.

Description

Technical Field

[0001] This utility model relates to the field of tubular busbar connection technology, and specifically to a tubular busbar docking mechanical connection device. Background Technology

[0002] With the continuous development of power systems, the performance requirements for busbars are increasing. Tubular busbars, due to their advantages such as large current carrying capacity, low skin effect, low temperature rise, good insulation performance, good heat dissipation, and high mechanical strength, are gradually being widely used in power transmission, especially in power plants, substations, and some industrial sites with high power transmission requirements, where they are often used to transmit large currents. Traditional tubular busbar connection methods, such as welding, can meet the requirements for normal rated current and temperature rise, but they are not convenient for the maintenance and replacement of power distribution equipment. Utility Model Content

[0003] Technical problem to be solved by the utility model

[0004] The technical problem to be solved by this utility model is to provide a mechanical connection device for tubular busbar docking, which is easy to install and disassemble, causes little damage to the tubular busbar and connecting parts, is reusable, and can effectively improve the reliability and stability of tubular busbar connection.

[0005] Technical solution

[0006] To solve the above problems, the technical solution provided by this utility model is as follows:

[0007] A mechanical connection device for connecting tubular busbars includes symmetrical clamps fixed at the interface of the tubular busbar. Symmetrically arranged quick-release locking elements abut against the outer side of each clamp. One quick-release locking element is bent and its two ends abut against and snap onto the outer side of the clamp. A through hole is provided in the middle of the quick-release locking element on one side, and it is quickly connected via an adjusting screw. An adjusting nut and a fastening handle are respectively provided at both ends of the adjusting screw. The fastening handle has an eccentric fixing pin. An arc groove is provided on the fastening handle side of the quick-release locking element to rotatably engage with the fastening handle. A fixed locking cover is connected to the end of the fastening handle via a locking ring.

[0008] The clamps are symmetrically fixed at the tube busbar interfaces, providing both fixation and support. Quick-release locking elements are symmetrically positioned on the outside of the clamps. Each quick-release locking element on one side features a bent structure, which facilitates locking onto the outside of the clamp, creating a certain gap to prevent interference with the tube busbar. Both ends snap onto the outside of the clamp for easy assembly and disassembly. An adjusting screw is located in a through-hole in the center of each quick-release locking element. The adjusting screw enables quick-release connection, with an adjusting nut and a tightening handle at each end. The tightening handle has an eccentric fixing pin that engages with an arc groove on one side of the quick-release locking element, allowing for rotational operation for easy adjustment and locking. A locking cover is connected to the end of the tightening handle via a locking ring, further enhancing the safety and stability of the connection.

[0009] Alternatively, the clamp can be fastened with bolts and nuts.

[0010] Using bolts and nuts allows installers to adjust the tightness of the clamps as needed, ensuring good contact with the busbar while avoiding damage from overtightening. In different working environments or with busbars of different specifications, the system can be adapted by changing bolt lengths or adjusting nut positions, increasing its versatility and flexibility. If maintenance or component replacement is required, disassembly is simple and quick; simply loosening the nuts is sufficient, eliminating the need for complex tools or lengthy operations, significantly improving maintenance efficiency.

[0011] Optionally, the bending forms a C-shaped clamp, the end of which clamps the hoop, and the adjusting screw is located in the middle of the C-shaped clamp.

[0012] The bent part of the quick-release locking part forms a C-shaped clamp, the end of which clamps the clamp and is spaced at a certain distance to avoid interference with the tubular busbar. The quick-release locking part can be firmly fixed on the clamp, while facilitating quick installation and removal.

[0013] The adjusting screw is located in the middle of the C-clamp, which can adjust the pressure of the C-clamp on the clamp in a balanced manner, ensuring the tightness and stability of the connection.

[0014] Optionally, the end of the C-shaped clamp is fitted with an insulating sleeve.

[0015] Insulating sleeves effectively prevent unnecessary electrical contact between the C-clamp and the clamp, preventing short circuits or other electrical faults and ensuring the safety of power transmission. During installation and use, insulating sleeves reduce direct friction and wear between metal parts, extending the service life of each component and protecting operators from the risk of electric shock. The insulating materials typically possess good corrosion resistance and anti-aging properties, allowing the connection device to operate stably in a wider range of environmental conditions, such as humid, acidic, and alkaline environments.

[0016] Optionally, the locking cover is rotatably connected to the quick-release locking member via a connecting pin.

[0017] The locking cover is rotatably connected to the quick-release locking mechanism via a connecting pin, facilitating position adjustment during installation and removal and ensuring the locking cover accurately covers and locks the entire connection point. This rotatable design allows operators to more easily align and secure the locking cover, simplifying the assembly process and enabling inspection or partial maintenance without completely removing the cover, thus improving work efficiency.

[0018] Optionally, the end of the fastening handle is provided with a buckle section, which hooks onto the locking ring.

[0019] A backlash section is provided at the end of the fastening handle, offering an additional locking mechanism during tightening to ensure that the handle will not accidentally loosen or rotate once the desired tightness is achieved. The locking ring and the backlash section interlock to form a reliable closed structure. This prevents the fastening handle from loosening due to external vibrations or other forces, thus ensuring the long-term stability and safety of the entire connection device.

[0020] Optionally, a fixing screw is provided at the connection point between the clamp and the quick-release locking member.

[0021] The installation of fixing screws at the connection point between the clamp and the quick-release locking device provides additional fastening points, ensuring that the quick-release locking device is securely fixed to the clamp and preventing displacement or loosening during use. The fixing screw design also increases the stability of the entire connection structure, ensuring good contact and electrical performance even under external forces (such as vibration and impact).

[0022] Optionally, the fixing screw is provided with a protrusion, which engages with the end of the quick-release locking member.

[0023] By using a protrusion to limit and engage with the end of the quick-release locking component, loosening or displacement of the quick-release locking component due to vibration or other external forces during use can be effectively prevented, ensuring the stability and safety of the connection point. The limiting and engaging design helps ensure that the quick-release locking component is accurately installed, reducing problems caused by improper installation and improving assembly accuracy and efficiency.

[0024] Beneficial effects

[0025] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0026] The technical solution provided by this utility model not only improves installation and disassembly efficiency and reduces damage to busbars and connectors, but also offers good economic benefits due to its reusability. Furthermore, a precise mechanical structure ensures the reliability and stability of the connection. Attached Figure Description

[0027] Figure 1 A side view of a tubular busbar docking mechanical connection device proposed for an embodiment of this utility model;

[0028] Figure 2 An end view of a tubular busbar docking mechanical connection device proposed for an embodiment of this utility model;

[0029] Figure 3 A top view of a tubular busbar docking mechanical connection device proposed for an embodiment of this utility model;

[0030] 1. Clamp; 2. Quick-release locking element; 3. Insulating sleeve; 4. Adjusting nut; 5. Adjusting screw; 6. Fixing pin; 7. Fastening handle; 8. Locking ring; 9. Connecting pin; 10. Locking cover; 11. Fixing plate; 12. Fixing screw; 13. Nut; 14. Bolt. Detailed Implementation

[0031] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0032] Example 1

[0033] Combined with appendix Figure 1-3 A mechanical connection device for connecting tubular busbars includes symmetrical clamps 1 fixed at the interface of the tubular busbar, and the clamps 1 are fastened by bolts 14 and nuts 13.

[0034] A fixing screw 12 is provided at the connection position between the clamp 1 and the quick-release locking piece 2. The fixing screw 12 has a protrusion that engages with the end of the quick-release locking piece 2. In this embodiment, the construction worker uses a special flaring tool to process the end of the left tubular busbar into a flared section with an inner diameter of 210mm, and the end of the right tubular busbar into a frustoconical shape with a taper of 1:10. An ultrasonic thickness gauge is used to confirm that the wall thickness of the processed area is ≥5mm, meeting the mechanical strength requirements. A 304 stainless steel double clamp 1 (lined with a 3mm silicone rubber pad) is selected and symmetrically fastened to the end of the pipe at a distance of 150mm using 14 sets of M16 stainless steel bolts. A torque wrench is used to apply a load to 120N·m in three stages to ensure uniform axial pressure distribution.

[0035] The outer side of the clamp 1 is abutted by symmetrically arranged quick-release locking parts 2. Each quick-release locking part 2 on one side is bent and its two ends abut against and snap onto the outer side of the clamp 1, forming a C-shaped clamp. The end of the C-shaped clamp clamps the clamp 1, and the adjusting screw 5 is located in the middle of the C-shaped clamp. The end of the C-shaped clamp is fitted with an insulating sleeve 3. The C-shaped clamps (opening size 215mm) of the two sets of quick-release locking parts 2 are fitted into the clamp 1, and the adjusting screw 5 is initially adjusted to the middle position.

[0036] The quick-release locking component 2 on one side has a through hole in the middle and is quickly connected via an adjusting screw 5. The adjusting screw 5 has an adjusting nut 134 at each end and a fastening handle 7 at the other end. The fastening handle 7 has an eccentric fixing pin 6. The fastening handle 7 side of the quick-release locking component 2 has an arc groove that rotatably engages with the fastening handle 7. The end of the fastening handle 7 is connected to a fixed locking cover 10 via a locking ring 8. The locking cover 10 is rotatably connected to the quick-release locking component 2 via a connecting pin 9. The end of the fastening handle 7 has a buckle section that hooks onto the locking ring 8.

[0037] Rotate the double-sided fastening handle 7 clockwise, causing the eccentric fixing pin 6 to move along the R50mm arc groove. When the handle reaches a rotation angle of 180°, the locking ring 8's inverted section and the handle's boss form a mechanical interlock.

[0038] Working principle:

[0039] Installation process: First, flare one end of the tubular busbar connection and machine the other end into a frustoconical shape. Then, symmetrically fix clamp 1 to the interface of the tubular busbar to be connected. Next, snap the quick-release locking pieces 2 on both sides onto clamp 1, ensuring a secure fit. Then, use adjusting screw 5 to adjust the position of quick-release locking pieces 2 to ensure a tight fit. By rotating the tightening handle 7, the eccentric fixing pin 6 moves along the arc groove, gradually increasing the clamping force until the required tightness is achieved. Finally, further reinforce the connection by using locking cover 10 and locking ring 8.

[0040] Disassembly process: Simply reverse the steps described above to easily complete disassembly. Thanks to the quick-release locking element 2 and the eccentric fixing pin 6, the entire process requires no complex tools, simplifying maintenance and replacement procedures.

[0041] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A mechanical connection device for connecting tubular busbars, characterized in that, The device includes symmetrical clamps fixed at the interface of the tubular busbar. The outer side of each clamp abuts against symmetrically arranged quick-release locking components. One quick-release locking component on one side is bent and its two ends abut against and snap onto the outer side of the clamp. The middle of the quick-release locking component on one side is provided with a through hole and is quickly connected via an adjusting screw. The two ends of the adjusting screw are respectively provided with an adjusting nut and a fastening handle. The fastening handle is provided with an eccentric fixing pin. The fastening handle side of the quick-release locking component is provided with an arc groove that rotatably engages with the fastening handle. The end of the fastening handle is connected to a fixed locking cover via a locking ring.

2. The tubular busbar butt mechanical connection device according to claim 1, characterized in that, The clamp is fastened by bolts and nuts.

3. The tubular busbar butt mechanical connection device according to claim 1, characterized in that, The bending forms a C-shaped clamp, the end of which clamps the hoop, and the adjusting screw is located in the middle of the C-shaped clamp.

4. The tubular busbar butt mechanical connection device according to claim 3, characterized in that, The end of the C-type clamp is fitted with an insulating sleeve.

5. The tubular busbar butt mechanical connection device according to claim 1, characterized in that, The locking cover is rotatably connected to the quick-release locking component via a connecting pin.

6. A tubular busbar butt mechanical connection device according to claim 1 or 5, characterized in that, The end of the fastening handle is provided with a buckle section, which hooks with the locking ring.

7. The tubular busbar butt mechanical connection device according to claim 1, characterized in that, The clamp is provided with a fixing screw at the connection point between it and the quick-release locking component.

8. The tubular busbar butt mechanical connection device according to claim 7, characterized in that, The fixing screw has a protrusion, which engages with the end of the quick-release locking member.

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