Tubular bus three-split shunting wire clamp

Abstract

A three-split shunting wire clamp for a tubular bus relates to an electric power fitting and comprises a tubular bus clamp body, a hanging plate is arranged at the lower part of the tubular bus clamp body, and a lead wire clamp is connected to the lower part of the hanging plate through an angle adjustable mechanism; a lug plate is arranged on the upper portion of the lead wire clamp, a connecting frame is arranged on the lower portion of the lug plate, and wire clamp aluminum pipes are fixedly connected to the end points of the connecting frame respectively. The cable clamp has the beneficial effects that firstly, the angle of the cable clamp aluminum pipe is adjusted through the angle adjusting mechanism, so that the bending of the down-leading cable during connection is avoided, the unbalance loading stress between the down-leading cable and the insertion port is reduced, and the labor intensity of on-site construction workers is reduced; meanwhile, the bending stress borne by the cable clamp aluminum pipe when the head end of the cable in the prior art is bent is avoided. And secondly, the connecting frame is reasonably designed in a three-splitting manner, so that the suspension balance of the connecting frame is optimized, and the bearing balance of the connecting down-leading cable is further ensured. Meanwhile, the structure of the connecting frame is optimized, and the service life of components is prolonged.

Description

Technical Field

[0001] The utility model relates to electric power hardware, in particular to an improvement on the structure of a busbar shunt clamp. Technical Background

[0002] In practical applications, multiple conductors are usually required for shunting. When shunting, multiple finger-shaped wire clamp aluminum tubes with fixed positions are usually set on the wire clamp of the tubular busbar. The ends of the shunting wires are inserted into the wire clamp aluminum tubes and then crimped to achieve conductive connection.

[0003] The conventional shunt clamp provided by the prior art, such as Fig.12 As shown in the figure, the aluminum tube of the wire clamp is generally fixed on the busbar wire clamp body. The down-lead cable is often connected from the side and has a certain angle with the tubular busbar. To achieve the connection between the down-lead cable and the aluminum tube of the wire clamp, the head of the cable needs to be rigidly bent. First, there will be a large elastic stress between the down-lead cable and the insertion port, which is easy to cause fatigue damage to the cable or the finger-shaped aluminum tube of the wire clamp; second, for the operator, the workload of bending the cable end at the construction site is extremely large, and it is difficult to control the bending accuracy by manual operation.

[0004] Secondly, the connection frame of the traditional shunt clamp does not consider the problem of load balance when connecting multiple down-lead cables, resulting in the connector bearing eccentric load stress, affecting the overall mechanical properties after connection and causing structural damage.

[0005] Therefore, how to avoid high-intensity bending of cable ends on site, thereby reducing the labor intensity of operators and avoiding structural damage, while balancing the overall load when connecting the lower lead, has become a technical problem that needs to be solved urgently in this field. Summary of the invention

[0006] The utility model aims at the above technical problems and provides a three-split shunt clamp for a tubular busbar which overcomes the above defects.

[0007] The technical solution of the utility model is that it comprises a tube busbar clamp body, a hanging plate is provided at the lower part of the tube busbar clamp body, and a lead wire clamp is connected to the lower part of the hanging plate through an angle-adjustable mechanism;

[0008] An ear plate is provided on the upper part of the lead wire clamp, a connecting frame is provided on the lower part of the ear plate, and the end points of the connecting frame are respectively fixedly connected with wire clamp aluminum tubes;

[0009] The angle adjustable mechanism is as follows: a concave groove is provided on the plate surface of the hanging plate, a tooth shape is provided on the bottom surface of the concave groove, and four waist-shaped grooves are evenly distributed on the same circumference on the bottom surface of the concave groove;

[0010] A convex platform is provided on the surface of the ear plate, and a tooth surface matching the tooth shape of the bottom surface of the concave groove is provided on the surface of the convex platform, and eight through holes are evenly distributed on the same circumference on the surface of the convex platform;

[0011] The convex platform is embedded in the concave groove, and four connecting pieces penetrate the through hole and the waist-shaped groove to realize angle-adjustable connection.

[0012] Furthermore, the connecting frame is a planar T-shaped structure, including a crossbar and a longitudinal bar, and reinforcing ribs are provided at the corners of the crossbar and the longitudinal bar;

[0013] The ear plate is fixedly arranged above the longitudinal rod perpendicular to the longitudinal rod and is located at the center of gravity of the connecting frame.

[0014] Furthermore, sockets are vertically provided below the three end points of the T-shaped structure of the connection frame; the wire clamp aluminum tube is fixedly connected to the end points of the connection frame through the sockets.

[0015] Furthermore, the eight through holes (222) are located on the same circumference, and the axis of the circumference is parallel to the axis of the busbar clamp body (1).

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] First, the angle of the wire clamp aluminum tube is adjusted through an angle-adjustable mechanism, so that the down-lead cable can be prevented from bending during connection, the eccentric load stress between the down-lead cable and the insertion port can be reduced, and the labor intensity of on-site construction workers can be alleviated; at the same time, the wire clamp aluminum tube is prevented from bearing the bending stress borne by the cable head end when it is bent in the prior art.

[0018] Secondly, the connection frame is rationally designed to be split into three parts, which optimizes its suspension balance and ensures the load balance of the connecting cables. At the same time, the structure of the connection frame itself is also optimized to ensure its structural strength and increase the service life of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 yes Figure 1 Left view of

[0021] Figure 3 It is a structural schematic diagram of the main body of the tube busbar clamp of the utility model;

[0022] Figure 4 yes Figure 3 Left view of

[0023] Figure 5 yes Figure 3 A top view of

[0024] Figure 6 It is a structural schematic diagram of the lead wire clamp of the utility model;

[0025] Figure 7 yes Figure 6 Right view of;

[0026] Figure 8 yes Figure 6 A top view of

[0027] Fig. 9 It is a structural schematic diagram of the aluminum tube socket of the utility model;

[0028] Fig.10 It is an assembly drawing of the utility model;

[0029] Fig.11 It is a structural schematic diagram of the first embodiment of the utility model;

[0030] Fig.12 It is a schematic diagram of the structure of a traditional shunt clamp;

[0031] In the figure: 1 is the main body of the busbar clamp, 11 is the hanging plate, 12 is the concave groove, 121 is the tooth shape, 122 is the waist groove,

[0032] 2 is a lead wire clamp, 21 is an ear plate, 22 is a convex platform, 221 is a tooth surface, 222 is a through hole, 23 is a connecting frame, 231 is a reinforcing plate, 232 is an aluminum tube socket,

[0033] 3 is the wire clamp aluminum tube, 4 is the down-lead cable, and 5 is the busbar. DETAILED DESCRIPTION

[0034] The technical solution of the present utility model is further described below with reference to the accompanying drawings and through specific implementation methods.

[0035] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0036] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear to indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] The utility model includes:

[0040] like Figure 3 As shown in FIG. 5 , a tube busbar clamp body 1 is provided with a hanging plate 11 at the lower part of the tube busbar clamp body 1, and a lead wire clamp 2 is connected to the lower part of the hanging plate 11 through an angle-adjustable mechanism;

[0041] like Figure 6 As shown in FIG. 9 , an ear plate 21 is provided on the upper part of the lead wire clamp 2, a connecting frame 23 is provided on the lower part of the ear plate 21, and a wire clamp aluminum tube 3 is fixedly connected to the end points of the connecting frame 23, and the wire clamp aluminum tube 3 is perpendicular to the connecting frame;

[0042] The angle-adjustable mechanism is as follows: a concave groove 12 is provided on the plate surface of the hanging plate 11, a tooth-shaped groove 121 is provided on the bottom surface of the concave groove 12, and four waist-shaped grooves 122 are evenly distributed on the same circumference on the bottom surface of the concave groove 12;

[0043] A convex platform 22 is provided on the surface of the ear plate 21, and a tooth surface 221 matching the tooth shape 121 of the bottom surface of the concave groove 12 is provided on the surface of the convex platform 22. Eight through holes 222 are evenly distributed on the same circumference on the surface of the convex platform 22.

[0044] The convex platform 22 is embedded in the concave groove 12, and then four connecting pieces penetrate the through hole 222 and the waist-shaped groove 122 to achieve an angle-adjustable connection.

[0045] Before installing the utility model, technicians in this field can select the tube busbar clamp body 1 of the single tube busbar clamp or the double tube busbar clamp according to the actual situation, such as Figure 1 , 2 As shown in 10 and 11, during installation, the angle of the lead wire clamp 2 is adjusted so that the aluminum tube 3 of the clamp ensures that the down-lead wire 4 will not be greatly bent when it is connected to the down-lead wire 4. After the tooth shape 121 and the tooth surface 221 are closed to ensure that the angle adjustable mechanism cannot rotate, the tube bus clamp body 1 and the lead wire clamp 2 are fixed together through the four through holes 222 and the waist groove 122. Finally, the tube bus clamp body 1 is installed on the busbar 5.

[0046] The connecting frame 23 is a planar T-shaped structure, including a horizontal bar and a vertical bar, and a reinforcing rib 231 is provided at the corner of the horizontal bar and the vertical bar to further enhance the bearing capacity of the connecting frame 23;

[0047] The ear plate 21 is fixedly arranged above the longitudinal rod perpendicular to the longitudinal rod and is located at the center of gravity of the connecting frame 23, so that the lead wire clamp 2 can firstly stabilize the overall structure of the connecting frame 23 and secondly ensure the balance.

[0048] Sockets 232 are vertically provided below the three ends of the T-shaped connecting frame 23; the wire clamp aluminum tube 3 is fixedly connected to the ends of the connecting frame 23 through the sockets 232, and the wire clamp aluminum tube 3 is vertically welded to the sockets 232 to increase the stability of the lead wire clamp.

[0049] The eight through holes 222 are on the same circumference, and the axis of the circumference is parallel to the axis of the tube busbar clamp body 1. This is to adapt to the angle of the cable. That is, when the cable comes from obliquely below, the angle of connection between the hanging plate 11 and the ear plate 21 can be adjusted by the angle adjustable mechanism.

[0050] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention based on the technical content disclosed in this application document. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A busbar three-split shunt clamp, comprising a busbar clamp body (1), a hanging plate (11) being provided at the lower part of the busbar clamp body (1), characterized in that: A lead wire clamp (2) is connected to the lower part of the hanging plate (11) via an angle-adjustable mechanism; The upper part of the lead wire clamp (2) is provided with an ear plate (21), the lower part of the ear plate (21) is provided with a connecting frame (23), and the end points of the connecting frame (23) are respectively fixedly connected with wire clamp aluminum tubes (3); The angle-adjustable mechanism comprises: a concave groove (12) is provided on the plate surface of the hanging plate (11); a tooth shape (121) is provided on the bottom surface of the concave groove (12); and four waist-shaped grooves (122) are evenly distributed on the same circumference on the bottom surface of the concave groove (12); A convex platform (22) is provided on the surface of the ear plate (21), a tooth surface (221) matching the tooth shape (121) on the bottom surface of the concave groove (12) is provided on the surface of the convex platform (22), and eight through holes (222) are evenly distributed on the same circumference on the surface of the convex platform (22); The convex platform (22) is embedded in the concave groove (12), and four connecting pieces are passed through the through hole (222) and the waist-shaped groove (122) to achieve an angle-adjustable connection.

2. A three-split busbar shunt clamp according to claim 1, characterized in that: The connecting frame (23) is a planar T-shaped structure, comprising a crossbar and a longitudinal bar, and reinforcing ribs (231) are provided at the corners of the crossbar and the longitudinal bar; The ear plate (21) is fixedly arranged above the longitudinal rod perpendicular to the longitudinal rod and is located at the center of gravity of the connecting frame (23).

3. A three-split busbar shunt clamp according to claim 2, characterized in that: Sockets (232) are vertically provided below the three end points of the T-shaped structure of the connection frame (23); the wire clamp aluminum tube (3) is fixedly connected to the end points of the connection frame (23) via the sockets (232).

4. A three-split shunt clamp for a tubular busbar according to claim 1, characterized in that: The eight through holes (222) are located on the same circumference, and the axis of the circumference is parallel to the axis of the busbar clamp body (1).

Images