Practical assembly of metal wire duct bridging protection connection conductor

Abstract

The utility model relates to a practical assembly of a metal wire duct bridging protection connection conductor, comprising metal wire ducts which are in left and right butt joint; a web plate of the U-shaped connecting sheet is in lap joint with the bottom surfaces of the two metal wire grooves, and flanges of the U-shaped connecting sheet cover the side surfaces of the two metal wire grooves; the bolt and nut assembly is connected with the metal wire groove and the U-shaped connecting piece in a penetrating mode. The two ends of the protective connection conductor are punched, and the protective connection conductor crosses the butt joint of the two metal wire grooves and is spaced from the U-shaped connection sheet up and down; the grounding terminal is connected with the protection connection conductor in a penetrating manner and is fastened on the side surface of the metal wire slot; and the grounding sheet is crimped between the protection connection conductor and the grounding terminal, and the grounding sheet extends and is lapped on the flange of the U-shaped connection sheet, so that the middle part of the grounding sheet is separated from the side surface of the metal wire slot. According to the utility model, the protection connection conductor and the grounding lead head can be separately connected, thereby preventing easy loosening caused by crimping at one position.

Description

Technical Field

[0001] This utility model relates to the field of metal cable tray grounding, and in particular to a practical component for bridging and connecting conductors of metal cable trays. Background Technology

[0002] The conventional method for bridging conductors is to use copper braided tape or brass wire. However, copper braided tape corrodes and falls off over time, and brass wire is also prone to detachment if the crimping is poor. For example, Chinese Utility Patent Publication No. CN 205544048U discloses a novel power cable tray. This novel power cable tray includes a cable trough, a ladder, and a support. The cable trough is fixed to both sides of the ladder by the support, and one end of the support is fixedly connected to a bridge pier. The cable trough is equipped with multiple clamping rods, and multiple wire fasteners are installed on the clamping rods. It uses copper braided wire for bridging. Since the grounding lead and the bridging wire are crimped into a bolt terminal, during long-term use, when the cable trough encounters vibration, the bolt terminal may loosen, causing the copper braided wire to fall off. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a practical component for bridging protective connection conductors in metal wire troughs, which can connect the protective connection conductor and the grounding lead separately to avoid loosening due to crimping in one place.

[0004] To solve the above problems, a practical component for bridging and protecting conductors using metal wire troughs is adopted, comprising:

[0005] Metal cable trays, with their left and right sides joined together;

[0006] The U-shaped connecting piece has its web overlapping the bottom surface of two metal wire grooves, and its flanges covering the sides of the two metal wire grooves.

[0007] Bolt and nut assembly, which connects a metal wire groove and a U-shaped connecting piece;

[0008] The protective connecting conductor has holes punched at both ends and spans the junction of two metal wire grooves, with vertical spacing between it and the U-shaped connecting piece.

[0009] The grounding terminal is connected to the protective connecting conductor and fastened to the side of the metal wire trough;

[0010] A grounding plate is crimped between the protective connecting conductor and the grounding terminal. The grounding plate extends and overlaps the flange of the U-shaped connecting piece, so that the middle part of the grounding plate is spaced from the side of the metal wire groove.

[0011] This structure, with its perforated connection method, ensures that the protective connection conductor does not detach from the grounding terminal. Furthermore, the extended grounding plate can connect to multiple grounding leads, allowing for separate connections between the grounding leads and the protective connection conductor, preventing interference. The spacing between the grounding plate and the side of the metal trough facilitates the insertion of the grounding lead. If the grounding lead uses an open copper lug, the lug fits within the grounding plate, preventing it from prying open. The grounding plate overlaps the flange of the U-shaped connecting piece, forming a seal and preventing the copper lug from falling off.

[0012] As a further improvement of this utility model, a grounding mark is provided on the grounding plate.

[0013] With this structure, the grounding marker is useful for indicating the connection position of the grounding lead.

[0014] As a further improvement of this utility model, an elongated hole is provided on the flange of the U-shaped connecting piece, and the bolt and nut assembly passes through the elongated hole and is then fastened to the side of the metal wire groove.

[0015] With this structure, the elongated hole allows the U-shaped connecting piece to have a certain displacement range to adapt to different working conditions.

[0016] As a further improvement of this utility model, the protective connecting conductor is a copper core plated with tin.

[0017] With this structure, the copper core provides good conductivity, and the tin plating layer prevents oxidation and corrosion, ensuring the reliability and durability of the connection.

[0018] As a further improvement of this utility model, the cross-sectional area of ​​the copper core tin-plated sheet is greater than 4mm². 2 .

[0019] As a further improvement of this utility model, an insulating flexible sheath is sleeved on the protective connecting conductor, and the insulating flexible sheath spans the joint of the two metal wire grooves.

[0020] With this structure, the flexible insulating sheath provides protection and will not hinder the deformation of the protective conductor in the event of thermal expansion and contraction. The flexible insulating sheath is also easy for the operator to hold.

[0021] As a further improvement of this utility model, a metal gasket is provided between the protective connecting conductor and the side of the metal wire groove, and the grounding terminal passes through the metal gasket.

[0022] With this structure, the metal gasket, in conjunction with the grounding terminal, further compresses and protects the connecting conductor, preventing poor contact.

[0023] As a further improvement of this utility model, the metal gasket has multiple protrusions spaced apart and passing through the side of the metal wire groove.

[0024] This structure further prevents interference from the plating on the surface of the metal wire trough and avoids poor contact.

[0025] As a further improvement of this utility model, the grounding terminal adopts a bolt-type grounding terminal.

[0026] As a further improvement of this utility model, the grounding piece extends and overlaps the flange of the U-shaped connecting piece and is pressed tightly by a limiting piece, with both ends of the limiting piece fastened to the U-shaped connecting piece.

[0027] With this structure, the limiting piece is fixed in place, further preventing the open copper lug from falling off.

[0028] This invention allows for separate connection of the protective connecting conductor and the grounding lead, preventing them from being easily loosened when pressed together in one place. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment.

[0030] Figure 2 This is a schematic diagram of the structure of a metal gasket.

[0031] Figure 3 This is a schematic diagram of the connection of a grounding open copper lug.

[0032] Attached reference numerals: 1. Metal cable tray;

[0033] 2. U-shaped connecting piece; 201. Oblong hole;

[0034] 3. Bolt and nut assembly; 4. Protective connecting conductor; 5. Grounding terminal; 6. Grounding plate; 7. Grounding mark; 8. Insulating flexible sheath; 9. Metal gasket; 901. Protrusion; 10. Limiting plate; 11. Grounding opening copper lug. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Example 1

[0038] like Figures 1-3 As shown, a practical assembly for bridging and protecting conductors in a metal wire trough includes:

[0039] Metal cable tray 1, with its left and right sides connected;

[0040] The U-shaped connecting piece 2 has its web overlapping the bottom surface of the two metal wire grooves 1, and its flange covering the sides of the two metal wire grooves 1.

[0041] Bolt and nut assembly 3, which connects the metal wire groove 1 and the U-shaped connecting piece 2;

[0042] Protective connecting conductor 4, with holes punched at both ends, spanning the joint of two metal wire grooves 1, and spaced vertically from the U-shaped connecting piece 2;

[0043] Grounding terminal 5, which is connected to protective connecting conductor 4 and fastened to the side of metal wire trough 1;

[0044] The grounding plate 6 is pressed between the protective connecting conductor 4 and the grounding terminal 5. The grounding plate extends and overlaps the flange of the U-shaped connecting piece 2, so that the middle part of the grounding plate 6 is spaced from the side of the metal wire groove 1.

[0045] With this structure and the perforated connection method, the protective connecting conductor 4 will not detach from the grounding terminal 5. At the same time, after the grounding plate 6 is extended, it can be connected to multiple grounding leads, and the grounding leads and the protective connecting conductor 4 are connected separately and do not affect each other. After the grounding plate 6 is spaced from the side of the metal wire groove 1, the space is conducive to the insertion of the grounding lead. If the grounding lead is a grounding open copper lug, the copper lug is fitted in the grounding plate 6 and will not pry open the grounding plate 6. The grounding plate 6 overlaps on the flange of the U-shaped connecting piece 2 to form a seal, which can also prevent the copper lug from falling off.

[0046] In this embodiment, a grounding mark 7 is provided on the grounding plate 6.

[0047] With this structure, grounding mark 7 is useful for identifying the connection position of the grounding lead.

[0048] In this embodiment, an elongated hole 201 is provided on the flange of the U-shaped connecting piece 2, and the bolt and nut assembly 3 passes through the elongated hole 201 and is then fastened to the side of the metal wire groove 1.

[0049] With this structure, the elongated hole 201 helps the U-shaped connecting piece 2 to obtain a certain displacement range to adapt to different working conditions.

[0050] In this embodiment, the protective connecting conductor 4 is a copper core plated with tin.

[0051] With this structure, the copper core provides good conductivity, and the tin plating layer prevents oxidation and corrosion, ensuring the reliability and durability of the connection.

[0052] In this embodiment, the cross-sectional area of ​​the copper core tin-plated sheet is greater than 4mm². 2 .

[0053] In this embodiment, an insulating flexible sheath 8 is fitted onto the protective connecting conductor 4, and the insulating flexible sheath 8 spans the junction of the two metal wire grooves 1.

[0054] With this structure, the flexible insulating sleeve 8 provides protection and will not hinder the deformation of the protective connecting conductor 4 in the event of thermal expansion and contraction. The flexible insulating sleeve 8 is also easy for the operator to hold.

[0055] In this embodiment, a metal gasket 9 is provided between the protective connecting conductor 4 and the side of the metal wire groove 1, and the grounding terminal 5 passes through the metal gasket 9.

[0056] With this structure, the metal gasket 9, in conjunction with the grounding terminal 5, further compresses and protects the connecting conductor 4, preventing poor contact.

[0057] In this embodiment, a plurality of protrusions 901 are spaced apart on the metal gasket 9 and pass through the side of the metal wire groove 1.

[0058] This structure further prevents interference from the coating on the surface of the metal wire groove 1 and prevents poor contact.

[0059] In this embodiment, the grounding terminal 5 is a bolt-type grounding terminal.

[0060] In this embodiment, the grounding piece 6 extends and overlaps the flange of the U-shaped connecting piece 2 and is pressed tightly by the limiting piece 10, with both ends of the limiting piece 10 fastened to the U-shaped connecting piece 2.

[0061] With this structure, the limiting piece 10 is fixed in place, further preventing the open copper lug from falling off.

[0062] This invention allows for separate connection of the protective connecting conductor and the grounding lead, preventing them from being easily loosened when pressed together in one place.

[0063] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.

Claims

1. A utility assembly for a metal wireway jumper protection bonding conductor, characterized by include: Metal cable tray (1), with its left and right sides joined together; The U-shaped connecting piece (2) has its web overlapping the bottom surface of the two metal wire grooves (1) and its flange covering the sides of the two metal wire grooves (1). Bolt and nut assembly (3), which passes through metal wire groove (1) and U-shaped connecting piece (2); Protect the connecting conductor (4), with holes punched at both ends, and spans the joint of the two metal wire grooves (1), with the U-shaped connecting piece (2) spaced vertically; The grounding terminal (5) is connected to the protective connecting conductor (4) and fastened to the side of the metal wire trough (1); The grounding plate (6) is pressed between the protective connecting conductor (4) and the grounding terminal (5). The grounding plate extends and overlaps the flange of the U-shaped connecting piece (2), so that the middle part of the grounding plate (6) is spaced from the side of the metal wire groove (1).

2. The utility assembly for jumpering a conductor of a metal-clad cable according to Claim 1, wherein A grounding mark (7) is provided on the grounding plate (6).

3. The utility assembly of claim 1, wherein the wireway jumper protection link conductor is comprised of a conductive material. The U-shaped connecting piece (2) has an elongated hole (201) on its flange, and the bolt and nut assembly (3) passes through the elongated hole (201) and is then fastened to the side of the metal wire groove (1).

4. The utility assembly for jumpering a bonding conductor of a metal clad cable of claim 1, wherein The protective connecting conductor (4) is a copper core plated with tin.

5. The utility assembly of claim 4, wherein The cross-sectional area of the copper core tinned sheet is greater than 4 mm 2 .

6. The practical component for bridging and protecting conductors in metal wire troughs according to claim 1, characterized in that... An insulating flexible sheath (8) is fitted onto the protective connecting conductor (4), and the insulating flexible sheath (8) spans the junction of the two metal wire grooves (1).

7. The utility assembly of claim 1, wherein the wireway jumper protection link conductor is comprised of a conductive material. A metal gasket (9) is provided between the protective connecting conductor (4) and the side of the metal wire groove (1), and the grounding terminal (5) passes through the metal gasket (9).

8. The utility assembly of claim 7, wherein The metal gasket (9) has multiple protrusions (901) spaced apart and connected to the side of the metal wire groove (1).

9. The utility assembly for jumpering a bonding conductor of a metal clad cable of claim 1, wherein The grounding terminal (5) is a bolt-type grounding terminal.

10. The utility assembly for jumpering a bonding conductor of a metal clad cable of claim 1, wherein The grounding piece (6) extends and overlaps the flange of the U-shaped connecting piece (2) and is pressed by the limiting piece (10). The two ends of the limiting piece (10) are fastened to the U-shaped connecting piece (2).

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