A reinforced cross arm and its use method

Abstract

The present invention discloses a reinforced crossbar and a method for using the same, comprising two symmetrically arranged crossbars, the crossbars on both sides of which are connected to a fixed connecting rod through a positioning adjustment rod, and a mounting seat that slides along the crossbar is also provided at the upper end of the crossbar. The present invention uses a positioning adjustment rod to connect the two crossbars. During installation, the distance between the two crossbars is enlarged by stretching the crossbars. After being sleeved on the electric pole, the two crossbars are initially clamped on the electric pole under the action of a telescopic spring, and then the staff uses the fixed connecting rod to firmly connect the two crossbars together. This installation method allows the staff to fasten the crossbars without the need to support them with their hands, and can free their hands for installation work, which brings great convenience to the staff and also greatly improves the installation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of communication cable supporting hardware, and in particular to a reinforced cross arm and a use method thereof. Background Art

[0002] The crossarm is an important component of the pole tower. Its function is to install insulators and hardware to support the conductors and lightning conductors and keep them at a certain safety distance as required. When installing the crossarm, workers usually need to climb up the pole and then perform high-altitude operations. In the past, the crossarm was fixed by connecting two crossbars through a connecting rod and using nuts for locking, so as to clamp the crossarm to the top of the pole. When the workers are tightening, they also need to support with their hands to prevent parts from falling, which brings great inconvenience to the installation work and greatly affects the installation efficiency. Summary of the invention

[0003] The purpose of the present invention is to avoid the deficiencies of the prior art and to provide a reinforced cross arm and a method of using the same, thereby effectively solving the deficiencies of the prior art.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a reinforced cross arm, comprising two symmetrically arranged cross bars, the cross bars on both sides are connected to the fixed connecting rod through a positioning adjustment rod, and the upper end of the cross bar is also provided with a mounting seat sliding along the cross bar;

[0005] The positioning adjustment rod comprises a mounting sleeve rod fixedly mounted on both sides of the crossbar, a connecting rod is arranged between the mounting sleeve rods at two symmetrical positions, a movable groove is arranged at one end of the mounting sleeve rod opposite to each other, two ends of the connecting rod are arranged in the movable groove, and a telescopic spring is arranged in the movable groove to reset the mounting sleeve rod;

[0006] The two ends of the fixing connecting rod respectively penetrate the two side cross bars, and the ends of the fixing connecting rod passing through the cross bars are provided with locking nuts;

[0007] The mounting seat is fixedly connected to the cross bar via retaining bolts.

[0008] Furthermore, a connecting head is provided at one end of the connecting rod located in the movable groove, and an annular edge for limiting the connecting head in the movable groove is provided at the edge of the mounting sleeve rod.

[0009] Furthermore, the telescopic spring is sleeved on the connecting rod, one end of the telescopic spring is fixedly connected to the annular edge, and the other end abuts against one side of the connecting head.

[0010] Furthermore, the portion of the connecting rod located outside the mounting sleeve rod is provided with two limiting caps, and the limiting caps are threadedly connected to the connecting rod.

[0011] Furthermore, rotating levers are provided on both sides of the limiting cap.

[0012] Furthermore, the cross bar is provided with a first slide groove along the vertical direction, the cross bar is provided with a second slide groove along the horizontal direction, a sliding seat is provided at the bottom of the mounting seat, the sliding seat can be slidably inserted in the first slide groove, and the retaining bolt passes through the second slide groove and the sliding seat.

[0013] Furthermore, the lower end of the sliding seat extends out of the first sliding groove, and mounting fins are arranged on both sides of the extending portion of the sliding seat, and the mounting fins are provided with retaining screws for positioning the mounting seat.

[0014] Furthermore, the retaining screw passes through the mounting wing vertically upwards, and a tightening groove is provided at the bottom of the cross bar at a position corresponding to the retaining screw, and one end of the retaining screw passes through the mounting wing and is inserted into the tightening groove.

[0015] Furthermore, an M-shaped cushion block is provided in the middle of the crossbar.

[0016] A method for using the above-mentioned reinforced cross arm comprises the following steps:

[0017] Step 1: Fix the positioning adjustment rod to the two cross bars, stretch the cross bars to both sides to increase the spacing between the cross bars, and then insert the stretched cross bars from the top of the electric pole so that the electric pole is located between the two cross bars, and slowly loosen the cross bars so that they are pre-tightened on the electric pole under the action of the telescopic spring;

[0018] Step 2: Use a fixed connecting rod to penetrate the two side cross bars, lock the two ends of the fixed connecting rod with a locking nut, and clamp the two cross bars on the electric pole;

[0019] Step 3: Adjust the position of the mounting base according to the position of the cable. After selecting the position, use the retaining bolts to lock the position of the mounting base.

[0020] Step 4: Fix the insulator in the mounting seat to complete the installation of the crossarm.

[0021] The above technical scheme of the present invention has the following beneficial effects: the present invention uses a positioning adjustment rod to connect the two cross bars. During installation, the distance between the two is enlarged by stretching the cross bar. After being sleeved on the pole, the two cross bars are initially clamped on the pole under the action of the telescopic spring. Then the staff uses the fixed connecting rod to firmly connect the two cross bars together. This installation method allows the staff to tighten the cross bar without the need to support it with their hands, and can free their hands for installation work, which brings great convenience to the staff and greatly improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0023] Figure 2 It is a schematic cross-sectional view of the installation of the positioning adjustment rod according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 It is a schematic cross-sectional view of the installation of the mounting base according to an embodiment of the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are 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, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] like Figure 1-5 As shown, a reinforced cross arm described in this embodiment includes two symmetrically arranged cross bars 1, the cross bars 1 on both sides are connected to the fixed connecting rods 3 through positioning adjustment rods 2, and the upper end of the cross bar 1 is also provided with a mounting seat 4 sliding along the cross bar 1, and the mounting seat 4 is provided with a threaded blind hole 43, and the threaded rod at the bottom of the hardware such as the insulator is fixedly connected with the threaded blind hole 43;

[0030] The positioning adjustment rod 2 includes a mounting sleeve rod 21 fixedly mounted on both sides of the crossbar 1, a connecting rod 22 is arranged between the mounting sleeve rods 21 at two symmetrical positions, a movable groove 23 is arranged at one end of the mounting sleeve rod 21 opposite to each other, both ends of the connecting rod 22 are arranged in the movable groove 23, and a telescopic spring 24 is arranged in the movable groove 23 to reset the mounting sleeve rod 21;

[0031] The two ends of the fixed connecting rod 3 respectively pass through the two side cross bars 1, and the end of the fixed connecting rod 3 passing through the cross bar 1 is provided with a locking nut 31;

[0032] The mounting seat 4 is fixedly connected to the cross bar 1 via retaining bolts 5 .

[0033] A connector 25 is disposed at one end of the connecting rod 22 located in the movable groove 23 , and an annular edge 26 for limiting the connector 25 in the movable groove 23 is disposed at the edge of the mounting sleeve rod 21 .

[0034] The telescopic spring 24 is sleeved on the connecting rod 22 , one end of the telescopic spring 24 is fixedly connected to the annular edge 26 , and the other end of the telescopic spring 24 abuts against one side of the connecting head 25 .

[0035] The part of the connecting rod 22 located outside the mounting sleeve rod 21 is provided with two limit caps 27, and the limit caps 27 are threadedly connected to the connecting rod 22. The limit caps 27 have a limiting effect on the mounting sleeve rod 21. When the cross bar 1 is clamped on the electric pole, the limit caps 27 can ensure that the positioning adjustment rod 2 maintains the current state to avoid shaking.

[0036] Rotating levers 28 are provided on both sides of the limiting cap 27 , and the rotating levers 28 are convenient for manually rotating the limiting cap 27 .

[0037] When in use, first fix the positioning adjustment rod 2 as a whole with the two cross bars 1. After the connection is completed, pull the two cross bars 1, and the two ends of the connecting rod 22 squeeze the telescopic spring 24, so that the distance between the two cross bars 1 becomes larger, and then insert it from the top of the pole, so that the two cross bars 1 are arranged on both sides of the pole, and then slowly loosen the cross bar 1 and release the tension on it. At this time, the telescopic spring 24 will rebound and reset, and under the action of the elastic force, the two cross bars 1 are clamped on both sides of the pole. Then the staff uses the fixed connecting rod 3 to tightly connect the two cross bars 1 together, so that the cross bar 1 is tightly fitted with the side wall of the pole, and finally twist the two limiting caps 27, so that the two limiting caps 27 move to the installation sleeve rods 21 at both ends respectively and abut against one side of the installation sleeve rod 21, completing the fixing of the cross bar.

[0038] The cross bar 1 is provided with a first slide groove 11 along the vertical direction, and a second slide groove 12 along the horizontal direction. A sliding seat 41 is provided at the bottom of the mounting seat 4. The sliding seat 41 can be slidably inserted in the first slide groove 11, and the retaining bolt 5 passes through the second slide groove 12 and the sliding seat 41.

[0039] The lower end of the sliding seat 41 extends out of the first sliding groove 11, and mounting fins 42 are provided on both sides of the extending part of the sliding seat 41. The mounting fins 42 are provided with fixing screws 6 for positioning the mounting seat 4. The mounting fins 42 also play a limiting role to prevent the mounting seat 4 from falling off in the first sliding groove 11 and the mounting seat 4 from being offset.

[0040] The fixing screw 6 passes through the mounting wing 42 vertically upwards. A tightening groove 13 is provided at the bottom of the cross bar 1 at a position corresponding to the fixing screw 6 . One end of the fixing screw 6 passing through the mounting wing 42 is inserted into the tightening groove 13 .

[0041] In the past, insulators were directly fixed on the crossbar 1, so according to different wiring spacings, crossbars of different specifications need to be replaced. In order to facilitate production and use, the mounting seat 4 is set to be adjustable to adapt to different working conditions. When adjusting, first loosen the retaining bolt 5 and the retaining screw 6. At this time, the restriction on the mounting seat 4 is released, and the mounting seat 4 is slid to reach a suitable position. When the mounting seat 4 slides, it will slide along the second slide groove 12 with the retaining bolt 5. After the position is selected, tighten the nut on the retaining bolt 5 so that the nut is clamped on the side wall of the crossbar 1, thereby limiting the displacement of the mounting seat 4, and then tighten the retaining screw 6 to make it press against the pressing groove 13 at the bottom of the crossbar 1, thereby completing the fixing work of the mounting seat. In order to further strengthen the mounting seat 4, a plurality of countersunk holes can be set on the side wall of the crossbar 1 along the second slide groove, and the nut can be tightened into the countersunk hole, thereby achieving a better fixing effect.

[0042] An M-shaped pad 7 is provided in the middle of the crossbar 1, and the M-shaped pad 7 is tightly fitted with the side wall of the electric pole.

[0043] A method for using the above-mentioned reinforced cross arm comprises the following steps:

[0044] Step 1: Fix the positioning adjustment rod 2 to the two cross bars 1, stretch the cross bars 1 to both sides to increase the spacing between the cross bars 1, and then insert the stretched cross bars 1 from the top of the electric pole so that the electric pole is located between the two cross bars 1, and slowly loosen the cross bars 1 so that they are pre-tightened on the electric pole under the action of the telescopic spring 24;

[0045] Step 2: Use the fixed connecting rod 3 to penetrate the two side cross bars 1, and lock the two ends of the fixed connecting rod 3 through the locking nut 31 to clamp the two cross bars 1 on the electric pole;

[0046] Step 3: Adjust the position of the mounting base 4 according to the position of the cable. After selecting the position, use the retaining bolt 5 to lock the position of the mounting base 4.

[0047] Step 4: Fix the insulator in the mounting seat 4 to complete the installation of the cross arm.

[0048] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A reinforced cross arm, characterized in that: It comprises two symmetrically arranged cross bars, the cross bars on both sides are connected with the fixed connecting rods through positioning adjustment rods, and the upper ends of the cross bars are also provided with mounting seats that slide along the cross bars; The positioning adjustment rod comprises a mounting sleeve rod fixedly mounted on both sides of the crossbar, a connecting rod is arranged between the mounting sleeve rods at two symmetrical positions, a movable groove is arranged at one end of the mounting sleeve rod opposite to each other, two ends of the connecting rod are arranged in the movable groove, and a telescopic spring is arranged in the movable groove to reset the mounting sleeve rod; The two ends of the fixing connecting rod respectively penetrate the two side cross bars, and the ends of the fixing connecting rod passing through the cross bars are provided with locking nuts; The mounting seat is fixedly connected to the cross bar via retaining bolts.

2. A reinforced cross arm according to claim 1, characterized in that: A connecting head is arranged at one end of the connecting rod located in the movable groove, and an annular edge for limiting the connecting head in the movable groove is arranged at the edge of the mounting sleeve rod.

3. A reinforced cross arm according to claim 2, characterized in that: The telescopic spring is sleeved on the connecting rod, one end of the telescopic spring is fixedly connected to the annular edge, and the other end abuts against one side of the connecting head.

4. A reinforced cross arm according to claim 3, characterized in that: The portion of the connecting rod located outside the mounting sleeve rod is provided with two limiting caps, and the limiting caps are threadedly connected to the connecting rod.

5. A reinforced cross arm according to claim 4, characterized in that: Rotating levers are arranged on both sides of the limiting cap.

6. The reinforced cross arm according to claim 1, characterized in that: The cross bar is provided with a first slide groove along the vertical direction, and a second slide groove is provided with the cross bar along the horizontal direction. A sliding seat is provided at the bottom of the mounting seat, and the sliding seat can be slidably inserted in the first slide groove. The retaining bolt passes through the second slide groove and passes through the sliding seat.

7. A reinforced cross arm according to claim 6, characterized in that: The lower end of the sliding seat extends out of the first sliding groove, and mounting fins are arranged on both sides of the extending portion of the sliding seat. The mounting fins are provided with retaining screws for positioning the mounting seat.

8. The reinforced cross arm according to claim 7, characterized in that: The fixing screw passes through the installation wing vertically upwards, and a tightening groove is arranged at the bottom of the cross bar at a position corresponding to the fixing screw, and one end of the fixing screw passes through the installation wing and is inserted into the tightening groove.

9. The reinforced cross arm according to claim 1, characterized in that: An M-shaped cushion block is arranged in the middle of the cross bar.

10. A method for using the reinforced cross arm according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Fix the positioning adjustment rod to the two cross bars, stretch the cross bars to both sides to increase the spacing between the cross bars, and then insert the stretched cross bars from the top of the electric pole so that the electric pole is located between the two cross bars, and slowly loosen the cross bars so that they are pre-tightened on the electric pole under the action of the telescopic spring; Step 2: Use a fixed connecting rod to penetrate the two side cross bars, lock the two ends of the fixed connecting rod with a locking nut, and clamp the two cross bars on the electric pole; Step 3: Adjust the position of the mounting base according to the position of the cable. After selecting the position, use the retaining bolts to lock the position of the mounting base. Step 4: Fix the insulator in the mounting seat to complete the installation of the crossarm.

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