Tubular bus terminal

Abstract

The utility model discloses a tubular bus terminal, which comprises a tubular bus main body, an equipment connector and a through hole, the tubular bus main body is embedded into the equipment connector through the through hole, the bottom of the equipment connector is provided with an equipment wiring terminal, and two sides of the equipment connector are fixed with the tubular bus main body through two first bolts. A screw head is welded to the end, away from the equipment connector, of each first bolt, waterproof protection boxes are arranged on the outer sides of the two first bolts, and two clamping assemblies convenient to install are arranged in each waterproof protection box. A waterproof protection box is arranged outside two first bolts, two handles are pulled, the two handles drive a sliding rod to slide in an inner ring of a sliding hole, then the waterproof protection box is clamped outside the two first bolts, the sliding rod and an arc-shaped clamping block are driven to reset through elastic force of a reset spring, the waterproof protection box is convenient to install, and the service life of the waterproof protection box is prolonged. Therefore, the first bolt is prevented from being exposed and rusted, and the connection safety of the tubular bus terminal is improved.

Description

Technical Field

[0001] The utility model relates to a tubular bus terminal, belonging to the technical field of tubular bus terminals. Background Art

[0002] The tubular bus terminal refers to the accessories located at the end of the solid insulated tubular bus system and connected to the electrical equipment. The tubular bus is called "tubular cable" abroad. The tubular insulated bus has the characteristics of large current (12000A), high mechanical strength, good insulation, and wide application range, so it is recognized and accepted by more and more customers. In foreign countries, this type of product has decades of operation history and experience, while in China, due to the short time of entering this field, as well as the limitations of technical research and development capabilities and insulation materials, it can only produce products with voltage levels of 35kV and below.

[0003] In the prior art, for example, the Chinese patent number CN 211150858 U6, “a tubular busbar terminal connection structure”, comprises a rectangular flexible connection, an expanded hole end provided on the terminal tubular busbar, and an equipment terminal. The expanded hole end is a regular polygonal tube end formed by expanding the circular tube end of the terminal tubular busbar by a hydraulic forming machine and then pressing the expanded tube wall. Bolt holes are provided on the side wall of the expanded hole end, and bolt holes corresponding to the side wall of the expanded hole end are provided on the rectangular flexible connection. One end of the rectangular flexible connection is fixedly connected to the expanded hole end by bolts passing through the rectangular flexible connection and the bolt holes of the expanded hole end, and the other end of the rectangular flexible connection is fixedly connected to the equipment terminal. The beneficial effect is that the tubular bus terminal connection structure of the utility model, based on the characteristics of strong tensile strength and expansibility of the metal conductive tube, utilizes the skin effect principle of current flowing on the surface without making a major change to the surface area and cross-sectional area of ​​the tubular bus, and adopts a method of arranging an expanded hole end at the end of the tubular bus to directly fasten it with the butted rectangular soft connection, thereby achieving a tubular bus terminal connection that is evenly fitted, tight, firm, and gapless. Different numbers of equilateral planes can be pressed according to the contact surface of the equipment terminal, so that the tubular bus terminal connection using this product is evenly conductive, effectively reducing the amount of pipe material used and reducing the production cost. It has the characteristics of simple structure, good contact, temperature rise during operation is not higher than that of the conductor itself, easy installation, and low cost.

[0004] However, in the prior art, existing tubular busbar terminals are widely used, such as in substations, converter stations and other industries. The basic connection method of tubular busbar terminals is through bolts and nuts. If there are no protective measures for the use of bolts and nuts, they will corrode and rust faster when exposed to water or exposed to the outside for a long time, thereby affecting the connection of the tubular busbar terminal and reducing its service life. Utility Model Content

[0005] The purpose of the utility model is to design a tubular bus terminal in view of the above problems existing in the prior art, to overcome the deficiencies of the prior art.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A tubular bus terminal comprises a tubular bus main body, an equipment connector and a through hole, wherein the tubular bus main body is embedded in the equipment connector through the through hole, an equipment wiring terminal is arranged at the bottom of the equipment connector, both sides of the equipment connector are fixed to the tubular bus main body by two first bolts, a screw head is welded to one end of the first bolt away from the equipment connector, a waterproof protection box is arranged on the outer side of the two first bolts, and two clamping components for easy installation are arranged inside each of the waterproof protection boxes.

[0008] Preferably, the two waterproof protection boxes are respectively arranged on both sides of the device connector, and sliding holes are provided on both sides of the waterproof protection boxes.

[0009] Preferably, the clamping assembly comprises a sliding rod, and the sliding rod slides on the inner circle of the sliding hole.

[0010] Preferably, an arc-shaped clamping block is welded on the inner side of the slide rod, a handle is welded on the outer side of the slide rod, a return spring is fixedly arranged between the arc-shaped clamping block and the handle, and the inner ring of the return spring is sleeved on the outer ring of the slide rod.

[0011] Preferably, the two clamping assemblies are arranged in opposite directions, and the two arc-shaped clamping blocks are both adapted to the two first bolts.

[0012] Preferably, two sealing rings are fixedly provided on the inner side wall of the waterproof protection box, and the two sealing rings are respectively sleeved on the outer ring of the sliding rod, and a box cover is fixedly connected to the top of the waterproof protection box.

[0013] Preferably, a moisture-proof plate is fixedly provided on the outer side of the box cover by a second bolt, the moisture-proof plate is located between the two clamping components, and arc-shaped sections are opened on both sides of the moisture-proof plate, and the sections are adapted to the outer periphery of the screw head.

[0014] Beneficial effects achieved by the utility model:

[0015] A waterproof protection box is arranged outside the two first bolts and then fixed by two clamping assemblies. By pulling the two handles outward, the two handles drive the sliding rod to slide in the inner circle of the sliding hole, and then the waterproof protection box is clamped on the outside of the two first bolts. The two handles are loosened, and the sliding rod and the arc-shaped clamping block are reset by the elastic force of the reset spring, so that the two arc-shaped clamping blocks are clamped on the outer circles of the two first bolts. The waterproof protection box is easy to install, and the moisture-proof plate can absorb moisture to keep the first bolts dry, thereby avoiding the first bolts from being contacted by rainwater or exposed to the outside and rusting, delaying corrosion, and improving the safety of the tubular bus terminal connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the device connector shown;

[0018] Figure 3 for Figure 1 Schematic diagram of the internal structure of the waterproof protection box.

[0019] Figure numerals: 1. tubular busbar body; 2. equipment connector; 02. equipment terminal; 3. through hole; 4. first bolt; 5. screw head; 6. waterproof protection box; 7. clamping assembly; 71. slide rod; 72. arc-shaped block; 73. handle; 74. reset spring; 8. slide hole; 9. sealing ring; 10. box cover; 11. second bolt; 12. moisture-proof board. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0021] Example 1

[0022] like Figure 1-3 As shown, a tubular busbar terminal proposed by the utility model comprises a tubular busbar body 1, an equipment connector 2 and a through hole 3, the tubular busbar body 1 is embedded in the equipment connector 2 through the through hole 3, an equipment wiring terminal 02 is arranged at the bottom of the equipment connector 2, both sides of the equipment connector 2 are fixed to the tubular busbar body 1 by two first bolts 4, a screw head 5 is welded at one end of the first bolt 4 away from the equipment connector 2, a waterproof protective box 6 is arranged on the outer side of the two first bolts 4, and two clamping components 7 for easy installation are arranged inside each waterproof protective box 6.

[0023] In this embodiment, the tubular busbar body 1, the equipment connector 2 and the through hole 3, the tubular busbar body 1 is embedded in the equipment connector 2 through the through hole 3, the bottom of the equipment connector 2 is provided with an equipment terminal 02, the tubular busbar body 1 and the equipment connector 2 are fixed by multiple first bolts 4, and the first bolts 4 are more convenient to rotate by providing screw heads 5. The first bolts 4 and the screw heads 5 are exposed outside the equipment connector 2. Over time or with wind and rain, the first bolts 4 may age and rust, or the connection between the tubular busbar body 1 and the equipment connector 2 may become loose. A waterproof protection box 6 is provided outside the first bolt 4, and then installed through two clamping assemblies 7 to improve the stability of the connection between the tubular busbar body 1 and the equipment connector 2.

[0024] Example 2

[0025] like Figure 1-3 As shown, a tubular busbar terminal proposed by the utility model, compared with embodiment 1, this embodiment also includes two waterproof protection boxes 6 respectively arranged on both sides of the equipment connector 2, both sides of the waterproof protection box 6 are provided with sliding holes 8, the clamping assembly 7 includes a sliding rod 71, the sliding rod 71 slides in the inner circle of the sliding hole 8, an arc-shaped block 72 is welded on the inner side of the sliding rod 71, a handle 73 is welded on the outer side of the sliding rod 71, a reset spring 74 is fixedly arranged between the arc-shaped block 72 and the handle 73, and the inner circle of the reset spring 74 is sleeved on the sliding rod On the outer ring 71, the two clamping components 7 are set in opposite directions, and the two arc-shaped blocks 72 are adapted to the two first bolts 4. The inner side wall of the waterproof protection box 6 is fixedly provided with two sealing rings 9, and the two sealing rings 9 are respectively sleeved on the outer ring of the slide rod 71. The top of the waterproof protection box 6 is fixedly connected with a box cover 10, and a moisture-proof plate 12 is fixedly provided on the outer side of the box cover 10 by a second bolt 11. The moisture-proof plate 12 is located between the two clamping components 7, and arc-shaped sections are opened on both sides of the moisture-proof plate 12, which are adapted to the outer periphery of the screw head 5.

[0026] In this embodiment, the clamping assembly 7 includes a slide bar 71, and the slide bar 71 slides in the inner circle of the slide hole 8. An arc-shaped clamping block 72 is welded on the inner side of the slide bar 71, and a handle 73 is welded on the outer side of the slide bar 71. The arc-shaped clamping block 72 is provided to facilitate the two corresponding arc-shaped clamping blocks 72 to clamp the two first bolts 4. The handle 73 is provided to facilitate pulling the slide bar 71. A reset spring 74 is fixedly provided between the arc-shaped clamping block 72 and the handle 73. The reset spring 74 generates a pressure on the arc-shaped clamping block 72. When the handle 73 is not pulled When the lock is unlocked, the sliding rod 71 and the arc-shaped clamping block 72 are reset by the elastic force of the reset spring 74. The two arc-shaped clamping blocks 72 are clamped on the outer circles of the two first bolts 4. The second bolt 11 is provided to install the moisture-proof plate 12 inside the waterproof protection box 6, which helps to improve the dryness inside the waterproof protection box 6. The moisture-proof plate 12 is provided with arc-shaped sections on both sides, which can further limit the installation of the waterproof protection box 6. The installation and disassembly of the waterproof protection box 6 are convenient, thereby improving the safety of the tubular bus terminal connection.

[0027] Working principle: When in use, first insert the tubular busbar body 1 into the equipment connector 2 through the through hole 3, and then fix it with multiple first bolts 4, and then protect the first bolts 4 on both sides of the equipment connector 2 through the waterproof protection box 6, and pull the two handles 73 outward, the two handles 73 drive the slide bar 71 to slide in the inner circle of the slide hole 8, and then clamp the waterproof protection box 6 on the outside of the two first bolts 4, loosen the two handles 73, and drive the slide bar 71 and the arc-shaped clamping block 72 to reset through the elastic force of the reset spring 74, so that the two arc-shaped clamping blocks 72 are clamped on the outer circles of the two first bolts 4. The waterproof protection box 6 is easy to install and disassemble, thereby avoiding the first bolts 4 being contacted by rainwater or exposed to the outside and rusting, delaying corrosion, and improving the safety and stability of the tubular busbar terminal connection.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A tubular busbar terminal, comprising a tubular busbar body (1), a device connector (2) and a through hole (3), characterized in that: The tubular busbar body (1) is embedded in the device connector (2) through a through hole (3); a device wiring terminal (02) is arranged at the bottom of the device connector (2); both sides of the device connector (2) are fixed to the tubular busbar body (1) by two first bolts (4); a screw head (5) is welded to one end of the first bolt (4) away from the device connector (2); a waterproof protection box (6) is arranged on the outside of the two first bolts (4); and two clamping components (7) for easy installation are arranged inside each of the waterproof protection boxes (6).

2. A tubular busbar terminal according to claim 1, characterized in that: The two waterproof protection boxes (6) are respectively arranged on both sides of the device connector (2), and sliding holes (8) are provided on both sides of the waterproof protection box (6).

3. A tubular busbar terminal according to claim 1, characterized in that: The clamping assembly (7) comprises a sliding rod (71), and the sliding rod (71) slides on the inner ring of the sliding hole (8).

4. A tubular busbar terminal according to claim 3, characterized in that: An arc-shaped clamping block (72) is welded on the inner side of the slide bar (71), a handle (73) is welded on the outer side of the slide bar (71), a return spring (74) is fixedly arranged between the arc-shaped clamping block (72) and the handle (73), and the inner ring of the return spring (74) is sleeved on the outer ring of the slide bar (71).

5. A tubular busbar terminal according to claim 4, characterized in that: The two clamping assemblies (7) are arranged in opposite directions, and the two arc-shaped clamping blocks (72) are both adapted to the two first bolts (4).

6. A tubular busbar terminal according to claim 1, characterized in that: Two sealing rings (9) are fixedly provided on the inner side wall of the waterproof protection box (6), and the two sealing rings (9) are respectively sleeved on the outer ring of the sliding rod (71), and a box cover (10) is fixedly connected to the top of the waterproof protection box (6).

7. A tubular busbar terminal according to claim 6, characterized in that: A moisture-proof plate (12) is fixedly provided on the outer side of the box cover (10) by means of a second bolt (11), the moisture-proof plate (12) being located between the two clamping components (7), and arc-shaped cut surfaces are provided on both sides of the moisture-proof plate (12), the cut surfaces being adapted to the outer periphery of the screw head (5).

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