Cross arm auxiliary tool

Abstract

A cross arm auxiliary tool comprises a support, a linear moving mechanism and sliding rails, the linear moving mechanism is installed on the support in the vertical direction, the movable end of the linear moving mechanism moves in the vertical direction, the two horizontally-arranged sliding rails are installed at the movable end of the linear moving mechanism, the two sliding rails are arranged in parallel, and the linear moving mechanism is installed on the support. The distance between the two sliding rails is larger than the outer diameter of an electric pole, and a sliding piece used for supporting a cross arm is installed on each sliding rail in a sliding mode. The operation intensity of workers is reduced, meanwhile, the installation stability of the cross arm is improved, and accidents are reduced to the maximum extent.

Description

Technical Field

[0001] The present invention relates to the field of cross-arm installation, and particularly to a cross-arm auxiliary tooling. Background Art

[0002] The cross-arm is installed on the upper part of the pole tower to support the overhead line and is an important component of the pole tower. Its function is to install insulators and fittings to support the conductor and lightning protection wire and keep a certain safe distance as required;

[0003] Currently, the main operation method for installing the cross-arm on the pole tower is to climb the pole manually or use a crane or an aerial work platform as a lifting mechanism to lift the cross-arm to the installation height for installation. Manual pole climbing operation has a high labor intensity and high danger, and cranes and existing aerial work platforms are not specifically set for installing cross-arms. Therefore, additional hoisting equipment needs to be configured to hoist the cross-arm and fittings, resulting in low work efficiency and high cost. Summary of the Invention

[0004] The present invention provides a cross-arm auxiliary tooling that facilitates the installation of the cross-arm, reduces the labor intensity and risk of workers.

[0005] To achieve the above object, the present invention first proposes a cross-arm auxiliary tooling, including a bracket, a linear movement mechanism and a slide rail. The linear movement mechanism is installed on the bracket along the vertical direction, and the moving end of the linear movement mechanism moves along the vertical direction. Two horizontally arranged slide rails are installed on the moving end of the linear movement mechanism. The two slide rails are arranged in parallel, and the distance between the two slide rails is greater than the outer diameter of the pole. A sliding member for supporting the cross-arm is slidably installed on each slide rail.

[0006] With the above structure, the cross-arm auxiliary tooling can be connected to other lifting equipment or aerial work equipment through the bracket. In this way, the cross-arm auxiliary tooling can be lifted and lowered through the lifting equipment or aerial work equipment. The cross-arm can be directly placed flat on the sliding members of the slide rails, and then by the cooperation of the linear movement mechanism and the slide rails, the actions of lifting the cross-arm over the top of the pole, pushing it towards the pole, and lowering it to the installation position of the pole are completed in sequence. All these actions are completed mechanically without manual lifting, reducing the labor intensity of workers. Workers only need to assist from the side, greatly improving the stability of cross-arm installation and minimizing the occurrence of accidents to the greatest extent; if it is installed on a lifting equipment or aerial work equipment with a working platform, the operation will be more convenient. Workers can stand on the working platform, and the working platform will send the cross-arm auxiliary tooling and workers to the height of the pole together. Workers perform all operations on the working platform, which is safer.

[0007] In the above-described embodiment, the sliding member includes two limiting blocks. The distance between the two limiting blocks matches the distance between two crossbeams on the cross arm. The top of the limiting block extends vertically out of the slide rail to form a clamping end for connecting with the cross arm. A clamping groove is provided on the clamping end of the limiting block, and the width of the clamping groove matches the thickness of the wing plate at the bottom of the cross arm beam.

[0008] Since the crossbeams of the cross arm are generally made of L-shaped steel or I-shaped steel, when the cross arm is placed on the limiting blocks, the wing plates at the bottoms of the two crossbeams of the cross arm are respectively clamped in the clamping grooves of the four limiting blocks, so that the cross arm is stably horizontally supported on the slide rail. In this way, the cross arm can move vertically through the linear movement mechanism, realizing the lowering of the cross arm from the top of the pole to the pole installation position, and the cross arm realizes horizontal movement along the slide rail through the limiting blocks, thereby facilitating the adjustment of the distance between the cross arm and the pole and further facilitating the installation of the cross arm.

[0009] As a first embodiment of the linear movement mechanism, the linear movement mechanism includes an upper slider group, a connecting rod, a guide rail, a lower slider group, a connecting link, and a worm gear and worm elevator. The two guide rails are parallel to each other and are fixed on the support columns of the bracket along the vertical direction. The worm gear and worm elevator is fixed on the cross beam of the bracket. The upper slider group and the lower slider group are slidably installed on the guide rail. The upper slider group is arranged above the lower slider group. A connecting rod and a stop rod are arranged between the two guide rails. The two upper slider groups are connected through the connecting rod to realize linkage, and the two lower slider groups are connected through the stop rod to realize linkage. The worm gear and worm elevator is provided with two moving ends with opposite movement directions. The two moving ends of the worm gear and worm elevator are respectively fixedly connected to the connecting rod and the stop rod. Two cross arm seats are respectively hinged on the two upper slider groups. The distance between the two cross arm seats is greater than the outer diameter of the pole. The slide rail is fixed on the cross arm seat. One end of the connecting link is hinged on the lower slider group, and the other end is hinged below the cross arm seat. The worm gear and worm elevator includes a worm gear transmission mechanism and a lead screw. The lead screw is arranged vertically between the two guide rails. The worm gear transmission mechanism is fixed on the cross beam of the bracket. The lead screw is driven to rotate by the worm gear transmission mechanism. The worm gear transmission mechanism is driven by a motor or by a rotating handle. The lead screw is provided with a first thread and a second thread with opposite rotation directions. A first nut is connected to the first thread of the lead screw, and a second nut is connected to the second thread of the lead screw to form two moving ends. The first nut and the second nut are respectively fixed on the stop rod and the connecting rod. A plurality of second limiting holes are arranged on the support column of the bracket along the length direction of the guide rail. A second pin hole matching the second limiting hole is provided on the lower slider group. The lower slider group realizes the locking of the position on the guide rail through a indexing pin inserted in the second limiting hole and the second pin hole.

[0010] With the above structure, the operation of the worm and worm gear lift is used to realize the actions of the upper slider group and the lower slider group approaching and moving away from each other synchronously, so as to realize the conversion between the expanded state and the stored state of the cross arm seat. In the expanded state, the two connecting frames are far away from each other and the distance is the largest. At this time, the cross arm seat is horizontally arranged. In the stored state, the two connecting frames are close to each other and the distance is the smallest, and the cross arm seat is vertically arranged. In this way, when the aerial work equipment lifts the cross arm auxiliary tooling, the slide rail can be folded and stored to prevent it from interfering with other equipment during the lifting process. During installation, the slide rail is unfolded again, which further improves the reliability of the construction.

[0011] As the second implementation manner of the linear movement mechanism, the linear movement mechanism includes an upper slider group, a connecting rod, a guide rail, a lower slider group, a connecting link and a worm and worm gear lift. The two guide rails are parallel to each other and are fixed on the support columns of the bracket in the vertical direction. The worm and worm gear lift is fixed on the cross beam of the bracket. The upper slider group and the lower slider group are slidably installed on the guide rail. The upper slider group is arranged above the lower slider group. A connecting rod and a stop rod are arranged between the two guide rails. The two upper slider groups are connected by the connecting rod to achieve linkage. The two lower slider groups are connected by the stop rod to achieve linkage. Two cross arm seats are respectively hinged on the two upper slider groups. The distance between the two cross arm seats is greater than the outer diameter of the electric pole. The slide rail is fixed on the cross arm seat. One end of the connecting link is hinged on the lower slider group and the other end is hinged under the cross arm seat. The worm and worm gear lift includes a worm and worm gear transmission mechanism and a lead screw. The lead screw is arranged vertically between the two guide rails. The worm and worm gear transmission mechanism is fixed on the cross beam of the bracket. The lead screw is driven to rotate by the worm and worm gear transmission mechanism. The worm and worm gear transmission mechanism is driven by a motor or by a rotating handle. Two movable ends are formed by threadedly connecting a first nut and a second nut on the lead screw. The second nut is fixed on the connecting rod. The first nut and the stop rod are detachably connected through a limit connecting piece. A plurality of second limit holes are arranged on the support column of the bracket along the length direction of the guide rail. The lower slider group is provided with a second pin hole matching the limit hole. The lower slider group realizes the locking of the position on the guide rail through a indexing pin inserted into the second limit and the second pin hole.

[0012] In the above implementation manner, the limit connecting piece includes a plug pin. The first nut is provided with a first pin hole matching the plug pin. The stop rod is provided with a first limit hole matching the first nut. The first nut realizes the linkage with the stop rod through a plug pin inserted into the first pin hole and the first limit hole.

[0013] With the above structure, when the overall height of the slide rail needs to be moved, the limit indexing pin is pulled out, and the first nut is connected and fixed to the stop rod through a pin. At this time, the driving turbine worm transmission mechanism is actuated, and the connecting frame and the stop rod move upward or downward together. In this way, compared with the previous embodiment, the overall height of the slide rail can be adjusted, further increasing the adjustment range of the cross arm in the height direction during installation and improving the adaptability and accuracy of installation.

[0014] At the same time, this embodiment can also achieve the expansion or storage of the slide rail. Simply fix the lower slider group on both sides of the installation area through the limit indexing pin, and pull out the pin between the first nut and the stop rod. Driven by the turbine worm lifter, at this time, only the connecting frame moves upward or downward, while the stop rod does not move, and the expansion or storage of the slide rail can also be achieved.

[0015] In summary, with the above structure, the working intensity of workers is reduced, and at the same time, the stability of cross arm installation is improved, minimizing the occurrence of accidents to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural view of the present invention.

[0017] Figure 2 It is a front view of the present invention.

[0018] Figure 3 It is a schematic structural view of the turbine worm lifter of the present invention.

[0019] Figure 4 It is a schematic structural view of the present invention in the storage state.

[0020] Figure 5 It is a schematic structural view of the present invention in the deployed state.

[0021] In the drawings, 1. upper slider group; 2. connecting rod; 3. guide rail; 4. lower slider group; 5. stop rod; 6. pin; 7. turbine worm lifter; 71. turbine worm transmission mechanism; 72. first nut; 73. lead screw; 74. second nut; 75. rotary handle; 8. indexing pin; 9. fifth shaft; 10. connecting rod; 11. sixth shaft; 12. limit block; 13. slide rail; 14. cross arm seat; 15. clamping groove; 16. bracket; 161. second limit hole; 17. cross arm; 18. pole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0024] As Figures 1 to 5 shown: A cross-arm auxiliary tooling includes a bracket 16, a linear movement mechanism, a limit block 12, a slide rail 13, and a cross-arm seat 14. The linear movement mechanism is installed on the bracket 16 in the vertical direction. The bracket 16 is used to connect the cross-arm auxiliary tooling with other lifting equipment or aerial work equipment. The moving end of the linear movement mechanism moves in the vertical direction. Two cross-arm seats 14 are installed on the moving end of the linear movement mechanism. The distance between the two cross-arm seats 14 is greater than the outer diameter of the electric pole. A horizontally arranged slide rail 13 is installed on the cross-arm seat 14. The two slide rails 13 are arranged in parallel. The distance between the two slide rails 13 is greater than the outer diameter of the electric pole 18.

[0025] Two limit blocks 12 are slidably installed on each slide rail 13. The distance between the two limit blocks 12 matches the distance between the two crossbeams on the cross-arm. The top of the limit block 12 extends out of the slide rail 13 in the vertical direction to form a clamping end for connecting with the cross-arm. A clamping groove 15 is provided on the clamping end of the limit block 12. The width of the clamping groove 15 matches the thickness of the wing plate at the bottom of the crossbeam of the cross-arm 17. Since the crossbeams of the cross-arm 17 are generally made of L-shaped steel or I-shaped steel, when the cross-arm 17 is placed on the limit block 12, the wing plates at the bottoms of the two crossbeams of the cross-arm 17 are respectively clamped in the clamping grooves of the four limit blocks 12, so as to horizontally support the cross-arm 17 on the slide rail 13 and restrict the movement of the cross-arm 17 along the slide rail direction. The cross-arm 17 can move in the vertical direction through the linear movement mechanism, realizing the lowering of the cross-arm from the top of the electric pole to the installation position of the electric pole. And the cross-arm realizes horizontal movement along the slide rail 13 through the limit block 12, thereby facilitating the adjustment of the distance between the cross-arm and the electric pole and further facilitating the installation of the cross-arm.

[0026] Specifically: In this embodiment, the linear movement mechanism includes an upper slider group 1, a connecting rod 2, a guide rail 3, a lower slider group 4, a connecting rod 10, and a worm gear and worm elevator 7.

[0027] Two guide rails 3 are parallel to each other and fixed on the support columns of the bracket 16 in the vertical direction. The worm gear lift 7 is fixed on the cross beam of the bracket 16. An upper slider group 1 and a lower slider group 4 are slidably installed on the guide rails 3. The upper slider group 1 is arranged above the lower slider group 4. A connecting rod 2 and a stop rod 5 are arranged between the two guide rails 3. The two upper slider groups 1 are connected by the connecting rod 2 to achieve linkage, and the two lower slider groups 4 are connected by the stop rod 5 to achieve linkage;

[0028] As an implementation manner of the worm gear lift 7 of the device, the worm gear lift 7 is provided with two movable ends with opposite movement directions. The two movable ends of the worm gear lift 7 are respectively fixedly connected to the connecting rod 2 and the stop rod 5. The cross arm seat 14 is hinged to the upper slider group 1 through the sixth shaft 11. One end of the connecting rod 10 is hinged to the lower slider group 4 through the fifth shaft 9, and the other end is hinged below the cross arm seat 14. With the above structure, the worm gear lift 7 operates to achieve the actions of the upper slider group 1 and the lower slider group 4 approaching and moving away from each other synchronously, so as to realize the conversion between the deployed state and the stored state of the cross arm seat 14. In the deployed state, the two connecting rods 2 are far away from each other and the distance is the largest. At this time, the cross arm seat 14 is horizontally arranged. In the stored state, the two connecting rods 2 are close to each other and the distance is the smallest, and the cross arm seat 14 is vertically arranged;

[0029] In the above implementation manner, further, the worm gear lift 7 includes a worm gear transmission mechanism 71 and a lead screw 73. The lead screw 73 is arranged vertically between the two guide rails 3. The worm gear transmission mechanism is fixed on the cross beam of the bracket 16. The lead screw 73 is driven to rotate by the worm gear transmission mechanism. The worm gear transmission mechanism is driven by a motor or by a rotary handle. The lead screw 73 is provided with a first thread and a second thread with opposite rotation directions. A first nut 72 is connected to the first thread of the lead screw 73, and a second nut 74 is connected to the second thread to form two movable ends. The first nut 72 and the second nut 74 are respectively fixed on the stop rod 5 and the connecting rod 2. A plurality of second limit holes 161 are arranged on the support columns of the bracket 16 along the length direction of the guide rail 3. The lower slider group 4 is provided with second pin holes matching the second limit holes 161. The lower slider group 4 realizes the locking of the position of the lower slider group 4 on the guide rail 3 through a indexing pin 8 inserted into the second limit hole 161 and the second pin hole.

[0030] As another embodiment of the turbine worm elevator 7 of the present device, the turbine worm elevator 7 is provided with two movable ends. The turbine worm elevator 7 includes a turbine worm transmission mechanism 71 and a lead screw 73. The lead screw 73 is arranged vertically between the two guide rails 3. The turbine worm transmission mechanism is fixed on the cross beam of the bracket 16. The lead screw 73 is driven to rotate by the turbine worm transmission mechanism. The turbine worm transmission mechanism is driven by a motor or by a rotary handle 75. Two movable ends are formed by threadedly connecting a first nut 72 and a second nut 74 on the lead screw 73. The second nut 74 is fixed on the connecting rod 2. The first nut 72 and the stop rod 5 are detachably connected through a limit connecting piece. Specifically: the limit connecting piece includes a pin 6. The first nut 72 is provided with a first pin hole matching the pin 6. The stop rod 5 is provided with a first limit hole matching the first nut 72. The first nut 72 realizes the linkage between the first nut 72 and the stop rod 5 through the pin 6 inserted in the first pin hole and the first limit hole. A plurality of second limit holes are arranged along the length direction of the guide rail 3 on the support column of the bracket 16. The lower slider group 4 is provided with a second pin hole matching the limit hole. The lower slider group 4 realizes the locking of the position of the lower slider group 4 on the guide rail 3 through the indexing pin 8 inserted in the second limit hole and the second pin hole.

[0031] By adopting this embodiment, the height of the slide rail 13 can be adjusted as a whole. When it is necessary to move the height of the slide rail 13 as a whole, the limit indexing pin 8 is pulled out, and the first nut 72 is connected and fixed to the stop rod 5 through the pin 6. At this time, the turbine worm transmission mechanism is driven, and the connecting rod 2 and the stop rod 5 move up or down together, so that the overall up and down adjustment of the slide rail 13 can be realized, and the accuracy of the cross arm installation can be further improved.

[0032] When it is necessary to unfold or store the slide rail 13, the lower slider group 4 is positioned on the guide rail 3 through the limit indexing pin 8, and the pin 6 between the first nut 72 and the stop rod 5 is pulled out. Driven by the turbine worm elevator 7, at this time, the connecting rod 2 moves up or down, while the stop rod 5 does not move, so as to realize the unfolding or storing of the slide rail 13.

[0033] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A crossarm auxiliary tooling, characterized in that: It includes a bracket (16), a linear movement mechanism and a slide rail (13). The linear movement mechanism is installed on the bracket (16) in the vertical direction. The movable end of the linear movement mechanism moves in the vertical direction. Two horizontally arranged slide rails (13) are installed on the movable end of the linear movement mechanism. The two slide rails (13) are arranged in parallel. The distance between the two slide rails (13) is greater than the outer diameter of the electric pole (18). A sliding member for supporting the cross arm (17) is slidably installed on each slide rail (13).

2. The cross arm auxiliary tooling according to claim 1, wherein: The sliding member includes two limit blocks (12). The distance between the two limit blocks (12) matches the distance between two cross beams on the cross arm (17). The top of the limit block (12) extends out of the slide rail (13) in the vertical direction to form a clamping end for connecting with the cross arm (17). A clamping groove (15) is provided on the clamping end of the limit block (12). The width of the clamping groove (15) matches the thickness of the wing plate at the bottom of the cross beam of the cross arm (17).

3. The cross-arm auxiliary tooling according to claim 1, characterized in that: The linear movement mechanism includes an upper slider group (1), a connecting rod (2), a guide rail (3), a lower slider group (4), a connecting rod (10) and a worm gear and worm elevator (7). Two guide rails (3) are parallel to each other and fixed on the support columns of the bracket (16) in the vertical direction. The worm gear and worm elevator (7) is fixed on the cross beam of the bracket (16). An upper slider group (1) and a lower slider group (4) are slidably installed on the guide rail (3). The upper slider group (1) is arranged above the lower slider group (4). A connecting rod (2) and a stop rod (5) are arranged between the two guide rails (3). The two upper slider groups (1) are connected by the connecting rod (2) to achieve linkage. The two lower slider groups (4) are connected by the stop rod (5) to achieve linkage. The worm gear and worm elevator (7) is provided with two movable ends with opposite movement directions. The two movable ends of the worm gear and worm elevator (7) are respectively fixedly connected to the connecting rod (2) and the stop rod (5). Two cross arm seats (14) are respectively hinged on the two upper slider groups (1). The distance between the two cross arm seats (14) is greater than the outer diameter of the electric pole (18). The slide rail (13) is fixed on the cross arm seat (14). One end of the connecting rod (10) is hinged on the lower slider group (4) and the other end is hinged below the cross arm seat (14).

4. The cross arm auxiliary tooling according to claim 3, characterized in that: The described worm gear lift (7) includes a worm gear transmission mechanism (71) and a lead screw (73). The lead screw (73) is arranged vertically between two guide rails (3). The worm gear transmission mechanism (71) is fixed on the cross beam of the bracket (16). The lead screw (73) is driven to rotate by the worm gear transmission mechanism (71). The worm gear transmission mechanism (71) is driven by a motor or by a rotary handle (75). The lead screw (73) is provided with a first thread and a second thread with opposite rotation directions. A first nut (72) is connected to the first thread of the lead screw (73), and a second nut (74) is connected to the second thread to form two movable ends. The first nut (72) and the second nut (74) are respectively fixed on the stop rod (5) and the connecting rod (2). A plurality of second limiting holes (161) are arranged on the support column of the bracket (16) along the length direction of the guide rail (3). The lower slider group (4) is provided with second pin holes matching the second limiting holes (161). The lower slider group (4) realizes the locking of the position of the lower slider group (4) on the guide rail (3) through a indexing pin (8) inserted into the second limiting holes (161) and the second pin holes.

5. The crossarm auxiliary tooling according to claim 1, characterized in that: The linear movement mechanism includes an upper slider group (1), a connecting rod (2), guide rails (3), a lower slider group (4), a connecting link (10), and a worm gear and worm elevator (7). Two guide rails (3) are parallel to each other and are vertically fixed on the support columns of the bracket (16). The worm gear and worm elevator (7) is fixed on the cross beam of the bracket (16). The upper slider group (1) and the lower slider group (4) are slidably mounted on the guide rails (3). The upper slider group (1) is arranged above the lower slider group (4). A connecting rod (2) and a stop rod (5) are arranged between the two guide rails (3). The two upper slider groups (1) are connected by the connecting rod (2) to achieve linkage. The two lower slider groups (4) are connected by the stop rod (5) to achieve linkage. Two cross arm seats (14) are respectively hinged on the two upper slider groups (1). The distance between the two cross arm seats (14) is greater than the outer diameter of the electric pole (18). A slide rail (13) is fixed on the cross arm seat (14). One end of the connecting link (10) is hinged on the lower slider group (4), and the other end is hinged below the cross arm seat (14). The worm gear and worm elevator (7) includes a worm gear transmission mechanism (71) and a lead screw (73). The lead screw (73) is vertically arranged between the two guide rails (3). The worm gear transmission mechanism (71) is fixed on the cross beam of the bracket (16). The lead screw (73) is driven to rotate by the worm gear transmission mechanism (71). The worm gear transmission mechanism (71) is driven by a motor or by a rotary handle (75). Two movable ends are formed by threadedly connecting a first nut (72) and a second nut (74) on the lead screw (73). The second nut (74) is fixed on the connecting rod (2). The first nut (72) and the stop rod (5) are detachably connected through a limit connecting piece. A plurality of second limit holes (161) are arranged on the support columns of the bracket (16) along the length direction of the guide rails (3). Second pin holes matching the limit holes are arranged on the lower slider group (4). The lower slider group (4) realizes the locking of the position of the lower slider group (4) on the guide rails (3) through a indexing pin (8) inserted into the second limit and second pin holes.

6. The cross arm auxiliary tooling according to claim 5, characterized in that: The limit connecting piece includes a pin (6). A first pin hole matching the pin (6) is arranged on the first nut (72). A first limit hole matching the first nut (72) is arranged on the stop rod (5). The first nut (72) realizes the linkage between the first nut (72) and the stop rod (5) through the pin (6) inserted into the first pin hole and the first limit hole.

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