Cross arm with load distribution function

Abstract

The utility model discloses a cross arm with load distribution function relates to cross arm technical field, including the cross arm body, the top and the bottom of the inside of cross arm body evenly set up multiple groups of movable slot, one side evenly of the inside of cross arm body is provided with multiple groups of fixed pressure -bearing piece, the inside movable slot is provided with slide rail at the middle position, the other side evenly of cross arm body is provided with multiple groups of installation slot, the inside of installation slot all is provided with the docking block, the docking block one side all is provided with the screw rod that extends to the movable slot inside, the inside movable connection of cross arm body has multiple groups of movable pressure -bearing piece. The utility model discloses through making the multiple groups of cable after clamping present from below to above, from left to right in turn staggered arrangement, thereby can avoid the problem that cross arm occurs static damage when the wire flutter amplitude is too big, can make it have the function of load distribution simultaneously, thereby make its connecting end's stability better, thereby improved the use ratio.

Description

Technical Field

[0001] This utility model relates to the field of crossarm technology, specifically a crossarm with load distribution function. Background Technology

[0002] Crossarms are an important component of poles and towers. Their core function is to distribute the loads of conductors, lightning protection wires, and other components evenly to the pole and tower structure through reasonable design, so as to ensure the stability of the line under severe weather or external forces.

[0003] In order to make the crossarm have the advantage of strong bending resistance, a new type of crossarm (see patent number: 201520377080.2) has been developed, which belongs to the field of mechanical technology. It solves the problem of weak bending resistance of existing composite material crossarms. This crossarm includes a crossarm body, which is rectangular and tubular. Two through holes are provided on the side wall of the crossarm body, distributed along its axial direction. Two elongated dovetail grooves are provided on opposite inner side walls of the crossarm body. Each dovetail groove is arranged along the axial direction of the crossarm body, with its two ends located on the two end faces of the crossarm body. Both pairs of through holes are circular and directly opposite the openings of the dovetail grooves. Iron blocks of matching size and shape are embedded within the dovetail grooves, with their two end faces flush with the two end faces of the crossarm body. Each iron block has a circular through hole. Two through holes are located on the same iron block, each directly opposite one of the two pairs of through holes. The diameter of the through hole is greater than or equal to the diameter of the through hole.

[0004] However, under operating loads, existing crossarms are prone to static failure, and when the conductor galloping amplitude is too large, the crossarm is prone to static damage, resulting in poor stability of its connection end and thus reducing its utilization rate.

[0005] Therefore, a crossarm with load distribution function is proposed to address the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a crossarm with load distribution function in order to solve the problem that crossarms are prone to static failure and have poor stability at their connection ends.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a crossarm with load distribution function, comprising a crossarm body, wherein multiple sets of movable grooves are evenly arranged at the top and bottom ends inside the crossarm body, multiple sets of fixed pressing members are evenly arranged on one side inside the crossarm body, a slide rail is provided at the middle position inside the movable groove, multiple sets of mounting grooves are evenly arranged on the other side of the crossarm body, a connecting block is provided inside each mounting groove, and a screw extending into the movable groove is provided on one side of each connecting block, and multiple sets of movable pressing members are movably connected inside the crossarm body;

[0008] The movable pressing member is provided with sliding grooves at the top and bottom, and one end of the top and bottom of one side of the movable pressing member is provided with threaded holes that match the screw. The other side of the movable pressing member is provided with a pressing block.

[0009] Cables are inserted into the adjacent end faces of the fixed and movable pressing parts, which are located inside the crossarm body.

[0010] As a further improvement of this utility model: the fixed pressing member and the pressing block are each provided with an arc-shaped groove on their adjacent sides, and each pair of arc-shaped grooves are combined to form a circular structure, and multiple sets of arc-shaped grooves are arranged sequentially from bottom to top and from left to right.

[0011] As a further improvement of this utility model: a movable hole communicating with the movable slot is provided on one side of the mounting slot, and the screw is rotatably connected to the mounting slot and the movable slot respectively through the movable hole.

[0012] As a further improvement of this utility model, the movable pressing member is slidably connected to the movable groove through the cooperation of the sliding groove and the sliding rail.

[0013] As a further improvement of this utility model, the movable pressing member is connected to the crossbeam body by means of the mutual cooperation of the threaded hole and the screw.

[0014] As a further improvement of this utility model, a damping pad is provided at the movable connection end between the screw and the mounting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By inserting the cables into the arc-shaped slots one by one and continuously pushing the movable retaining member to the left until the movable retaining member clamps the cables, and the clamped cables are arranged in a staggered manner from bottom to top and from left to right, the problem of static damage to the crossarm caused by excessive conductor swing amplitude can be avoided. At the same time, it can have the function of load distribution, thereby improving the stability of its connection end and increasing the utilization rate.

[0017] 2. Damping pads are provided at the connection ends of the screw and mating block with the mounting groove to increase the frictional resistance of the connection ends, so that it can only operate under the action of external force. When it is stationary, it can ensure its static stability, thereby making it more secure to the position of the moving pressing part, avoiding the phenomenon of loosening under force, and thus improving stability. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the movable pressing component of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model;

[0021] Figure 4 This is a partial structural schematic diagram of the present invention.

[0022] In the diagram: 1. Crossarm body; 101. Fixed pressing component; 102. Movable groove; 103. Slide rail; 104. Screw; 105. Mounting groove; 106. Connecting block; 2. Movable pressing component; 201. Slide groove; 202. Threaded hole; 203. Pressing block; 204. Arc-shaped slot; 3. Cable. Detailed Implementation

[0023] 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.

[0024] 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., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" 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. The embodiments of this utility model will be described below based on its overall structure.

[0025] Please see Figures 1-4In this embodiment of the utility model, a crossarm with load distribution function includes a crossarm body 1. Multiple sets of movable grooves 102 are evenly arranged at the top and bottom of the crossarm body 1. Multiple sets of fixed pressing members 101 are evenly arranged on one side of the crossarm body 1. A slide rail 103 is arranged at the middle position inside the movable groove 102. Multiple sets of mounting grooves 105 are evenly arranged on the other side of the crossarm body 1. A connecting block 106 is arranged inside each mounting groove 105. A screw 104 extending into the movable groove 102 is arranged on one side of each connecting block 106. Multiple sets of movable pressing members 2 are movably connected inside the crossarm body 1.

[0026] Among them, the top and bottom of the movable pressing part 2 are provided with sliding grooves 201, one end of the top and bottom of one side of the movable pressing part 2 is provided with threaded holes 202 that match the screw 104, and the other side of the movable pressing part 2 is provided with pressing block 203.

[0027] Cables 3 are inserted into the adjacent end faces of the fixed pressing member 101 and the movable pressing member 2, which are located inside the crossarm body 1.

[0028] like Figures 1 to 4 As shown, the fixed pressing member 101 and the pressing block 203 are each provided with an arc-shaped groove 204 on the adjacent side. Each pair of arc-shaped grooves 204 are combined to form a circular structure. Multiple sets of arc-shaped grooves 204 are arranged from bottom to top and from left to right.

[0029] like Figures 1 to 4 As shown, a movable hole communicating with the movable groove 102 is provided on one side inside the mounting groove 105, and the screw 104 is rotatably connected to the mounting groove 105 and the movable groove 102 through the movable hole.

[0030] like Figures 1 to 4 As shown, the movable pressing member 2 is slidably connected to the movable groove 102 through the cooperation of the sliding groove 201 and the sliding rail 103.

[0031] like Figures 1 to 4 As shown, the movable pressing member 2 is threadedly and movably connected to the crossbeam body 1 through the mutual cooperation of the threaded hole 202 and the screw 104.

[0032] like Figures 1 to 4 As shown, a damping pad is provided at the movable connection end between the screw 104 and the mounting groove 105.

[0033] In this embodiment, the external force must be much greater than the resistance generated by the damping pad in order to achieve its normal operation, thereby ensuring the stability of the adjusted connection.

[0034] Working principle: In use, first place the cable 3 inside the crossarm body, then insert the top and bottom of the movable pressing member 2 into the corresponding movable groove 102 inside the crossarm body 1, and align the sliding grooves 201 on the top and bottom of the movable pressing member 2 with the slide rails 103 inside the movable groove 102, so that the movable pressing member 2 can move left and right along the slide rails 103 inside the movable groove 102. At the same time, the threaded hole 202 on the side of the movable pressing member 2 connects with the screw 104 inside the movable groove 102. Then, a rotational force is generated on the connecting block 106 from the left side of the crossarm body 1, causing the connecting block 106 to rotate under force (a cross groove is provided on one side of the connecting block 106, which can be driven by an external screwdriver), and the screw 104 rotates. Meanwhile, since the threaded hole 202 on the movable pressing part 2 is threadedly connected to the screw 104, when the screw 104 is rotated under force, it can directly generate a leftward pushing force on the movable pressing part 2, which is restricted by the movable groove 102, until the distance between the fixed pressing part 101 and the movable pressing part 2 becomes shorter and shorter. Then the cable 3 can be inserted into the arc-shaped slot 204 in sequence, and the movable pressing part 2 will continue to generate a leftward pushing force until the movable pressing part 2 clamps the cable 3. After clamping, the multiple sets of cables 3 are arranged in a staggered manner from bottom to top and from left to right, which can avoid the problem of static damage to the crossarm caused by excessive amplitude of wire dancing, thereby improving the stability of its connection end and improving the utilization rate.

[0035] Damping pads are provided at the connection ends of the screw 104 and the mating block 106 with the mounting groove 105 to increase the frictional resistance of the connection ends, so that it can only operate under the action of external force (and the external force must be much greater than the resistance generated by the damping pad to achieve its normal operation). When it is stationary, it can ensure its static stability, thereby making its firmness against the position of the movable pressing part 2 better, avoiding its movement under force and loosening, thus improving stability.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crossarm with load distribution function, comprising a crossarm body (1), characterized in that, Multiple sets of movable grooves (102) are evenly arranged at the top and bottom of the crossarm body (1). Multiple sets of fixed pressing members (101) are evenly arranged on one side of the crossarm body (1). A slide rail (103) is provided at the middle position inside the movable groove (102). Multiple sets of mounting grooves (105) are evenly arranged on the other side of the crossarm body (1). A docking block (106) is provided inside each mounting groove (105). A screw (104) extending into the movable groove (102) is provided on one side of each docking block (106). Multiple sets of movable pressing members (2) are movably connected inside the crossarm body (1). Among them, the top and bottom of the movable pressing member (2) are provided with sliding grooves (201), one end of the top and bottom of one side of the movable pressing member (2) is provided with threaded holes (202) that match the screw (104), and the other side of the movable pressing member (2) is provided with pressing blocks (203). Among them, the fixed pressing member (101) and the movable pressing member (2) are respectively inserted with cables (3) on their adjacent end faces and inside the crossarm body (1).

2. The cross arm with load distribution function according to claim 1, characterized in that, The fixed pressing member (101) and the pressing block (203) are each provided with an arc-shaped slot (204) on their adjacent sides. Each pair of arc-shaped slots (204) are combined to form a circular structure. Multiple sets of arc-shaped slots (204) are arranged from bottom to top and from left to right.

3. A crossarm with load distribution function according to claim 1, characterized in that, The mounting groove (105) has a movable hole on one side that communicates with the movable groove (102), and the screw (104) is rotatably connected to the mounting groove (105) and the movable groove (102) through the movable hole.

4. A crossarm with load distribution function according to claim 1, characterized in that, The movable pressing member (2) is slidably connected to the movable groove (102) through the cooperation of the sliding groove (201) and the sliding rail (103).

5. A crossarm with load distribution function according to claim 1, characterized in that, The movable pressing member (2) is threaded and movablely connected to the crossbeam body (1) through the mutual cooperation of the threaded hole (202) and the screw (104).

6. The cross arm with load distribution function according to claim 1, characterized in that, The movable connection end of the screw (104) and the mounting groove (105) is provided with a damping pad.

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