Fixing fitting of tubular busbar
By designing a combination of fastening and locking components, the loosening problem of tubular busbar fixing hardware caused by temperature, gravity, and natural forces is solved, maintaining a stable contact area, preventing increased resistance and safety hazards, and improving fixing stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-24
AI Technical Summary
The fixing hardware of existing tubular busbars is prone to loosening due to temperature, gravity and natural forces after long-term use, which reduces the contact area with the busbar, increases resistance, and may cause fire or short circuit.
A fastening fitting including fastening and locking components was designed. Through the cooperation of adjusting grooves, teeth, bevel gears and springs, the busbar is fastened and adapted to thermal expansion and contraction, maintaining a stable contact area.
It effectively prevents increased resistance and safety hazards caused by reduced contact area, improves fixing stability, and prevents fires or short circuits.
Smart Images

Figure CN224037019U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electric power equipment, specifically, relates to a fixing hardware of tubular bus. BACKGROUND
[0002] With the development of electric power industry, the current carried by the conductor is getting larger and larger, and the rectangular conductor cannot meet the requirement of large current conduction. Therefore, the use of tubular conductor in the field of generator outlet bus, common box bus of power plant and the like is gradually increasing. As a kind of electric power equipment with large current carrying capacity, high mechanical strength, excellent insulation performance and wide applicability, the tubular bus plays an increasingly important role in the electric power system. As an important component of the tubular bus, the fixing hardware is also becoming more widely and importantly applied.
[0003] Chinese patent CN218124254U provides a tubular bus hardware, relating to a fixing clamp field, the technical scheme of the utility model includes upper hoop, lower hoop and U-shaped bolt, the upper hoop and the lower hoop are oppositely combined and set, and the space between the upper hoop and the lower hoop is used for fixing the tubular bus;Two through holes are respectively arranged on the two side wings of the upper hoop and the lower hoop, and one U-shaped bolt is respectively arranged on the two side wings of the upper hoop and the lower hoop;The ends of the U-shaped bolt are respectively arranged in the two through holes from bottom to top, and the upper side of the upper hoop and the upper side of the lower hoop correspondingly matched with the U-shaped bolt are respectively fitted with a nut, and the middle part of the U-shaped bolt and the lower hoop are used for fixing to the support. It can be very convenient to move along the square support, adapt to the adjustment of the installation position of the bus, quickly fix the square support perpendicular to the tubular bus, can significantly improve the stability of its fixation, the basic unit of the overall structure is simple, and the production cost is very low.
[0004] The existing fixing hardware of tubular bus is used for a long time, the tubular bus is affected by temperature, gravity and natural force, the tubular bus is loose, the contact area between the tubular bus and the hardware is reduced, the resistance is increased, the energy consumption is increased, and local overheating is caused, thereby causing fire or short circuit problem. UTILITY MODEL CONTENTS
[0005] The utility model provides a fixing hardware of tubular bus, which solves the problem of the fixing hardware of tubular bus in the related art, the fixing hardware is used for a long time, the tubular bus is affected by temperature, gravity and natural force, the tubular bus is loose, the contact area between the tubular bus and the hardware is reduced, the resistance is increased, the energy consumption is increased, and local overheating is caused, thereby causing fire or short circuit problem.
[0006] The utility model discloses a technical scheme as follows: A fixing hardware of tubular bus, including hardware body, the hardware body inside fixed has fastening assembly, the hardware body side surface is connected with the mounting bolt of screw thread, the mounting bolt is connected with locking assembly of screw thread,
[0007] The fastening assembly includes an adjusting groove, a first adjusting plate is slidably connected in the adjusting groove, a plurality of teeth are formed on one side of the first adjusting plate, a tooth groove is formed in the middle of the hardware body, a bevel gear is rotatably connected in the tooth groove, a plurality of teeth are engagedly connected to both ends of the bevel gear, and a fastening plate is fixedly connected to the bottom of the first adjusting plate.
[0008] Preferably, an adjusting handle is fixed to the top of the first adjusting plate, and the adjusting handle is fixed to both ends of the top of the first adjusting plate.
[0009] Preferably, a spring is fixed to the bottom of the fastening plate, a second adjusting plate is fixed to the other end of the spring, and a protrusion is arranged on the side of the second adjusting plate.
[0010] Preferably, two groups of first adjusting plates are arranged in the hardware body, and the two groups of first adjusting plates are staggered in the hardware body.
[0011] Preferably, the two groups of first adjusting plates move towards each other.
[0012] Preferably, the locking assembly includes a nut body, an extension ring is fixed to the bottom of the nut body, a connecting rod is fixed to the bottom of the extension ring, and a limiting ring is fixed to the bottom of the connecting rod.
[0013] Preferably, two groups of limiting rings are fixed to the bottom of the extension ring, and the two groups of limiting rings are staggered.
[0014] Preferably, a limiting groove is arranged on both sides of the hardware body.
[0015] The working principle and beneficial effects of the utility model are as follows:
[0016] 1、In the utility model, the fastening assembly is arranged, so that the contact area between the hardware and the tubular bus can be increased, the clamping and fixing of the bus are improved, the contact area between the tubular bus and the hardware is prevented from being reduced due to the influence of temperature, gravity and natural force, the effect that the tubular bus can be fastened and short circuit or fire caused by the reduction of the contact area is prevented is achieved, the contact area of the bus expansion part and the hardware is not changed when the bus is expanded due to temperature through the adjustment of the adaptive ring, the effect that the contact area of the bus is prevented from being increased and more heat is generated by the current to damage the outer surface of the bus is achieved. DRAWINGS
[0017] The utility model will be further described in detail below in combination with the drawings and specific embodiments.
[0018] Figure 1 It is the external structure schematic view of the utility model;
[0019] Figure 2 It is the fastening assembly side structure sectional view of the utility model;
[0020] Figure 3 It is Figure 2 It is the internal structure enlarged schematic view of A place in the middle;
[0021] Figure 4 It is the locking assembly structure schematic view of the utility model;
[0022] Figure 5 It is the locking assembly structure enlarged schematic view of the utility model.
[0023] In the drawing: 1, fitting body;2, fastening assembly;21, adjusting groove;22, first adjusting plate;23, tooth;24, tooth groove;25, bevel gear;26, adjusting handle;27, fastening plate;28, spring;29, second adjusting plate;3, locking assembly;31, nut body;32, extension ring;33, connecting rod;34, limiting ring;35, limiting groove;4, mounting bolt. Specific embodiments
[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the protection scope of the utility model.
[0025] Embodiment 1
[0026] As Figures 1-3 The embodiment provides a fixing fitting of tubular busbar, including fitting body 1, the fastening assembly 2 is fixed in the inside of fitting body 1, the mounting bolt 4 is screw-connected on the side surface of fitting body 1, and the locking assembly 3 is screw-connected on the mounting bolt 4;
[0027] The fastening assembly 2 includes adjusting groove 21, the first adjusting plate 22 is slidably connected in adjusting groove 21, the tooth 23 is formed in one side of the first adjusting plate 22, the tooth groove 24 is formed in the middle of fitting body 1, the bevel gear 25 is rotatably connected in the tooth groove 24, the tooth 23 is meshingly connected on both ends of bevel gear 25, and the fastening plate 27 is fixedly connected to the bottom of the first adjusting plate 22.
[0028] An adjustment handle 26 is fixed to the top of the first adjustment plate 22. The adjustment handle 26 is fixed to both ends of the top of the first adjustment plate 22. The adjustment handle 26 is used to adjust the first adjustment plate 22, so that the first adjustment plate 22 can reinforce the connection of the side of the hardware body 1, thereby making the upper hardware and the lower hardware more stable.
[0029] A spring 28 is fixed to the bottom of the fastening plate 27, and a second adjusting plate 29 is fixed to the other end of the spring 28. A protrusion is provided on the side of the second adjusting plate 29. The second adjusting plate 29 can be contracted by the spring 28 to adapt to the situation where the diameter of the busbar changes due to temperature, gravity and natural forces after long-term use, so as to maintain the contact area between the busbar and the hardware body 1.
[0030] The fitting body 1 is provided with two sets of first adjustment plates 22. The two sets of first adjustment plates 22 are staggered inside the fitting body 1 to prevent the first adjustment plate 22 from getting stuck with the first adjustment plate 22 in the lower fitting when it moves, thus preventing the fitting connection from being reinforced.
[0031] The two sets of first adjusting plates 22 move toward each other, so that the two sets of staggered first adjusting plates 22 can move toward each other through the bevel gear 25, thereby simultaneously reinforcing the hardware connection on both sides.
[0032] In this embodiment, when the hardware body 1 is installed on the busbar, the hardware body 1 is fixed by the mounting bolt 4 and further fixed by the locking assembly 3. Then, by rotating the adjustment handle 26, the first adjustment plate 22 drives the fastening plate 27 to mesh with the bevel gear 25 through the teeth 23 on the side, so that the first adjustment plates 22 on both sides of the hardware body 1 move towards each other, thereby reinforcing the connection between the two sides of the inner wall of the hardware body 1. When the busbar expands and contracts due to temperature, gravity and natural forces after long-term use, the busbar is in close contact with the second adjustment plate 29. When the busbar expands, the second adjustment plate 29 contracts towards the fastening plate 27 through the spring 28, so that the contact area between the busbar and the hardware body 1 remains unchanged. When the busbar contracts, the second adjustment plate 29 rebounds through the elastic force accumulated by the spring 28 and is in close contact with the busbar, thereby maintaining the contact area between the busbar and the hardware body 1.
[0033] Example 2
[0034] like Figures 4-5 As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes a locking assembly 3 including a nut body 31, an extension ring 32 fixed at the bottom of the nut body 31, a connecting rod 33 fixed at the bottom of the extension ring 32, and a limit ring 34 fixed at the bottom of the connecting rod 33.
[0035] The bottom of the extension ring 32 is fixed with two groups of limiting rings 34, the two groups of limiting rings 34 are staggered, the staggered limiting rings 34 can limit the nut body 31 and the mounting bolt 4 after installation;
[0036] The hardware body 1 is provided with limiting grooves 35 on both sides, the limiting grooves 35 are connected with the limiting rings 34 through rotation, and the installation and fixation of the hardware body 1 are further strengthened.
[0037] In the embodiment, when the hardware body 1 is installed on the busbar, the mounting bolt 4 is first screwed on both sides of the hardware body 1, then the nut body 31 is pressed into the mounting bolt 4, the limiting ring 34 at the bottom of the nut body 31 is moved into the limiting groove 35, then the nut body 31 is rotated in the mounting bolt 4, the limiting ring 34 is rotated into the limiting groove 35, and the hardware body 1 is fixed, so that the connection between both sides of the hardware body 1 is prevented from loosening due to vibration.
[0038] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A fixing fitting for a tubular busbar, characterized in that, Includes a hardware body (1), a fastening component (2) is fixed inside the hardware body (1), a mounting bolt (4) is threadedly connected to the side of the hardware body (1), and a locking component (3) is threadedly connected to the mounting bolt (4). The fastening assembly (2) includes an adjustment groove (21), in which a first adjustment plate (22) is slidably connected. A tooth (23) is provided on one side of the first adjustment plate (22). A toothed groove (24) is provided in the middle of the hardware body (1). A bevel gear (25) is rotatably connected in the toothed groove (24). Both ends of the bevel gear (25) are meshed with teeth (23). A fastening plate (27) is fixedly connected to the bottom of the first adjustment plate (22).
2. The fixing hardware for a tubular busbar according to claim 1, characterized in that, An adjustment handle (26) is fixed to the top of the first adjustment plate (22), and the adjustment handle (26) is fixed to both ends of the top of the first adjustment plate (22).
3. The fixing hardware for a tubular busbar according to claim 1, characterized in that, A spring (28) is fixed to the bottom of the fastening plate (27), and a second adjusting plate (29) is fixed to the other end of the spring (28). A protrusion is provided on the side of the second adjusting plate (29).
4. The fixing hardware for a tubular busbar according to claim 1, characterized in that, The fitting body (1) is provided with two sets of first adjustment plates (22), which are staggered inside the fitting body (1).
5. The fixing hardware for a tubular busbar according to claim 4, characterized in that, The two sets of first adjustment plates (22) move towards each other.
6. The fixing hardware for a tubular busbar according to claim 1, characterized in that, The locking assembly (3) includes a nut body (31), an extension ring (32) is fixed at the bottom of the nut body (31), a connecting rod (33) is fixed at the bottom of the extension ring (32), and a limit ring (34) is fixed at the bottom of the connecting rod (33).
7. A fixing hardware for a tubular busbar according to claim 6, characterized in that, The bottom of the extension ring (32) is fixed with two sets of limiting rings (34), and the two sets of limiting rings (34) are staggered.
8. A fixing hardware for a tubular busbar according to claim 6, characterized in that, Limiting grooves (35) are started on both sides of the fitting body (1).
Citation Information
Patent Citations
Tubular busbar fitting
CN218124254U