Adjustable cross arm

Abstract

The utility model provides an adjustable cross arm, which relates to the technical field of cross arms and comprises a positioning box, and the inner bottom wall of the positioning box is slidably connected with a support frame. According to the adjustable cross arm, through cooperation between a rocker and a second threaded rod, a sliding block can slide in a first transmission groove, a supporting frame is driven by the sliding block to slide in a positioning box, and through cooperation between the supporting frame and an inclined sliding groove, a movable frame can horizontally slide between a first sliding groove and a second sliding groove; a plurality of insulating frames on the surface of a moving frame can be adjusted at equal intervals according to different working environments of a cross arm, then through cooperation between a first transmission wheel and a first threaded rod, a connecting sleeve can slide up and down in a limiting groove, and through cooperation between the connecting sleeve and a connecting block, the connecting sleeve can slide up and down. The insulating frame can move up and down on the surface of the moving frame, the height of the insulating frame can be adjusted according to different operation height requirements of the cross arm, and the practicability of the cross arm is improved.

Description

Technical Field

[0001] The utility model relates to a cross arm, in particular to an adjustable cross arm, and belongs to the technical field of cross arms. 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. The angle iron fixed horizontally on the top of the pole has a porcelain bottle on it to support the overhead wires.

[0003] In Chinese patent application publication number CN218843912U, a cross arm with adjustable length is disclosed. The utility model drives the telescopic arm to move through an adjusting component, so that the telescopic arm can perform telescopic movement from the inner cavity, thereby adjusting the total length of the cross arm body, making it suitable for different sizes of utility poles and meeting the installation requirements on different utility poles. The telescopic arm is limited by a limiting component to prevent the telescopic arm from displacement and improve the stability of the telescopic arm.

[0004] Although the solution of the above patent can adjust the total length of the crossarm body by driving the telescopic arm to move through the adjustment component, the crossarm in the above patent can only adjust two insulators when in use, which is not convenient for adjusting multiple insulators at equal distances, resulting in a limited operating environment of the crossarm and an inability to adjust the height of the crossarm supporting the conductor; therefore, an adjustable crossarm is proposed herein. Utility Model Content

[0005] The utility model provides an adjustable cross arm to solve the problems in the prior art of being inconvenient to adjust multiple insulators at equal distances and being unable to adjust the height of the cross arm supporting the conductor.

[0006] The utility model is realized through the following technical solutions: an adjustable cross arm, including a positioning box, the inner bottom wall of the positioning box is slidably connected to a support frame, the top surface of the support frame is evenly provided with two groups of inclined slide grooves, the inner bottom wall of the positioning box is provided with a first slide groove, the top surface of the positioning box is provided with a second slide groove, and the interior of the inclined slide groove is slidably connected to a transmission mechanism for adjusting the operating height of the cross arm.

[0007] Furthermore, the transmission mechanism includes a movable frame slidably connected to the inside of the inclined slide, the bottom end of the movable frame is fixedly sleeved with a second limit block slidably connected to the inside of the first slide, a limit slot is opened inside the movable frame, a first threaded rod is rotatably connected to the inside of the limit slot, and the top end of the first threaded rod passes through the top end of the movable frame and is fixedly sleeved with a first transmission wheel.

[0008] Furthermore, the transmission mechanism also includes a connecting sleeve threadedly connected to the periphery of the first threaded rod, and the connecting sleeve is slidably connected to the inside of the limiting groove. A connecting block that slides through one side of the movable frame is fixed to the periphery of the connecting sleeve, and an insulating frame is fixed to the side of the connecting block away from the connecting sleeve, and the insulating frame is slidably sleeved on the periphery of the movable frame.

[0009] Furthermore, the transmission mechanism further includes a first limiting block fixedly sleeved on the periphery of the movable frame, and the bottom surface of the first limiting block is slidably connected to the top surface of the positioning box.

[0010] A moving mechanism for adjusting the operating spacing of the cross arms is provided between the inner bottom wall of the positioning box and the supporting frame.

[0011] Furthermore, the moving mechanism includes a first transmission groove opened on the bottom wall of the positioning box, a second threaded rod is rotatably sleeved inside the first transmission groove, the outer thread of the second threaded rod is threadedly connected to a slider slidably connected to the inside of the first transmission groove, and one end of the second threaded rod passes through a side surface of the positioning box and is fixedly sleeved with a rocker.

[0012] Both sides of the positioning box are provided with positioning mechanisms for fixing the positioning box.

[0013] Furthermore, the positioning mechanism includes a positioning frame fixed on one side of the positioning box, two second transmission grooves are opened inside the positioning frame, a bidirectional threaded rod is rotatably sleeved inside the positioning frame, two ends of the bidirectional threaded rod are provided with two sections of threads in opposite directions, one end of the bidirectional threaded rod passes through one side of the positioning frame and is fixedly sleeved with a second transmission wheel.

[0014] Furthermore, the positioning mechanism also includes two moving blocks respectively threadedly connected to the two ends of the bidirectional threaded rod, the peripheries of the two moving blocks are respectively slidably connected to the inside of the two second transmission grooves, and a clamping rod is fixed to one side of each moving block.

[0015] The utility model provides an adjustable cross arm, which has the following beneficial effects:

[0016] 1. The adjustable cross arm, through the cooperation between the rocker and the second threaded rod, can make the slider slide inside the first transmission groove, and drive the support frame to slide inside the positioning box through the slider, and through the cooperation between the support frame and the inclined slide groove, can make the mobile frame slide horizontally between the first slide groove and the second slide groove, and can adjust the multiple insulating frames on the surface of the mobile frame to equal distances according to different working environments of the cross arm.

[0017] 2. The adjustable cross arm, through the cooperation between the first transmission wheel and the first threaded rod, can make the connecting sleeve slide up and down inside the limit groove, and through the cooperation between the connecting sleeve and the connecting block, can make the insulating frame move up and down on the surface of the movable frame. The height of the insulating frame can be adjusted according to the different working height requirements of the cross arm, thereby improving the practicality of the cross arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the positioning box in the utility model;

[0019] Figure 2 This is a sectional view of the three-dimensional structure inside the positioning box of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the positioning mechanism in the utility model;

[0021] Figure 4 It is a three-dimensional structural diagram of the transmission mechanism in the utility model.

[0022] Description of Reference Numerals

[0023] 1. Positioning box; 2. Support frame; 3. Inclined slide;

[0024] 4. Transmission mechanism; 41. Moving frame; 42. Limiting groove; 43. First threaded rod; 44. First transmission wheel; 45. Connecting sleeve; 46. Connecting block; 47. Insulating frame; 48. First limiting block; 49. Second limiting block;

[0025] 5. First chute; 6. Second chute;

[0026] 7. Moving mechanism; 71. First transmission groove; 72. Second threaded rod; 73. Rocker; 74. Slider;

[0027] 8. Positioning mechanism; 81. Positioning frame; 82. Bidirectional threaded rod; 83. Second transmission wheel; 84. Second transmission groove; 85. Moving block; 86. Clamping rod. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0029] See also Figures 1 to 4An embodiment of the utility model provides an adjustable crossarm, including a positioning box 1, the inner bottom wall of the positioning box 1 is slidably connected to a support frame 2, the top surface of the support frame 2 is evenly provided with two groups of inclined slide grooves 3, the inner bottom wall of the positioning box 1 is provided with a first slide groove 5, the top surface of the positioning box 1 is provided with a second slide groove 6, and the interior of the inclined slide groove 3 is slidably connected to a transmission mechanism 4 for adjusting the operating height of the crossarm.

[0030] In the above solution, the multiple insulating frames 47 on the surface of the movable frame 41 can be adjusted to equal distances through the cooperation between the transmission mechanism 4 and the first slide groove 5 and the second slide groove 6 .

[0031] Please refer to Figure 4 The transmission mechanism 4 includes a moving frame 41 slidably connected to the inside of the inclined slide 3, and the bottom end of the moving frame 41 is fixedly sleeved with a second limit block 49 slidably connected to the inside of the first slide 5. A limit groove 42 is provided inside the moving frame 41, and a first threaded rod 43 is rotatably connected inside the limit groove 42. The top end of the first threaded rod 43 passes through the top end of the moving frame 41 and is fixedly sleeved with a first transmission wheel 44.

[0032] The transmission mechanism 4 also includes a connecting sleeve 45 threadedly connected to the periphery of the first threaded rod 43, and the connecting sleeve 45 is slidably connected to the inside of the limiting groove 42. A connecting block 46 that slides through one side of the movable frame 41 is fixed to the periphery of the connecting sleeve 45, and an insulating frame 47 is fixed to the side of the connecting block 46 away from the connecting sleeve 45, and the insulating frame 47 is slidably sleeved on the periphery of the movable frame 41.

[0033] In the above scheme, the first transmission wheel 44 is rotated by external force, and the first transmission wheel 44 and the first threaded rod 43 cooperate to make the connecting sleeve 45 slide up and down inside the limiting groove 42. The connecting sleeve 45 and the connecting block 46 cooperate to make the insulating frame 47 move up and down on the surface of the movable frame 41, and the height of the insulating frame 47 can be adjusted according to the different working height requirements of the cross arm.

[0034] The transmission mechanism 4 further includes a first limiting block 48 fixedly sleeved on the periphery of the moving frame 41 , and the bottom surface of the first limiting block 48 is slidably connected to the top surface of the positioning box 1 .

[0035] In the above scheme, through the cooperation between the support frame 2 and the inclined slide groove 3, the movable frame 41 can slide horizontally between the first slide groove 5 and the second slide groove 6. While the movable frame 41 slides, the cooperation between the first limit block 48 and the second limit block 49 is used to improve the stability of the movable frame 41 during sliding.

[0036] Please refer to Figure 1 and Figure 2 A moving mechanism 7 for adjusting the cross arm operation spacing is provided between the inner bottom wall of the positioning box 1 and the support frame 2 .

[0037] The moving mechanism 7 includes a first transmission groove 71 opened on the inner bottom wall of the positioning box 1, and a second threaded rod 72 is rotatably sleeved inside the first transmission groove 71. The outer periphery of the second threaded rod 72 is threadedly connected to a slider 74 slidably connected to the inside of the first transmission groove 71. One end of the second threaded rod 72 passes through a side surface of the positioning box 1 and is fixedly sleeved with a rocker 73.

[0038] In the above solution, the cooperation between the rocker 73 and the second threaded rod 72 enables the slider 74 to slide horizontally inside the first transmission groove 71 , and the slider 74 drives the support frame 2 to slide inside the positioning box 1 .

[0039] Please refer to Figure 1 and Figure 3 Both sides of the positioning box 1 are provided with positioning mechanisms 8 for fixing the positioning box 1 .

[0040] Please refer to Figure 3 The positioning mechanism 8 includes a positioning frame 81 fixed to one side of the positioning box 1. Two second transmission grooves 84 are provided inside the positioning frame 81. A bidirectional threaded rod 82 is rotatably sleeved inside the positioning frame 81. Two ends of the bidirectional threaded rod 82 are provided with two sections of threads in opposite directions. One end of the bidirectional threaded rod 82 passes through one side of the positioning frame 81 and is fixedly sleeved with a second transmission wheel 83.

[0041] The positioning mechanism 8 also includes two moving blocks 85 respectively threadedly connected to the two ends of the bidirectional threaded rod 82. The outer peripheries of the two moving blocks 85 are respectively slidably connected to the inside of the two second transmission grooves 84. A clamping rod 86 is fixed to one side of each moving block 85.

[0042] In the above scheme, the second transmission wheel 83 is rotated by external force, and the two clamping rods 86 can be moved closer to or away from each other through the cooperation between the second transmission wheel 83, the bidirectional threaded rod 82 and the moving block 85. When the two clamping rods 86 are close to each other, the positioning box 1 can be fixed to the top of the pole tower.

[0043] When the utility model is in use, the rocking rod 73 is rotated by external force, and the cooperation between the rocking rod 73 and the second threaded rod 72 can make the slider 74 slide horizontally inside the first transmission groove 71, and the support frame 2 is driven by the slider 74 to slide inside the positioning box 1, and the cooperation between the support frame 2 and the inclined slide 3 can make the movable frame 41 slide horizontally between the first slide 5 and the second slide 6. At the same time as the movable frame 41 slides, the cooperation between the first limit block 48 and the second limit block 49 can improve the stability of the movable frame 41 when sliding, and the multiple insulating frames 47 on the surface of the movable frame 41 can be adjusted to equal distances according to different working environments of the cross arm; then the first transmission is rotated by external force Wheel 44, and through the cooperation between the first transmission wheel 44 and the first threaded rod 43, the connecting sleeve 45 can slide up and down inside the limiting groove 42, and through the cooperation between the connecting sleeve 45 and the connecting block 46, the insulating frame 47 can be moved up and down on the surface of the movable frame 41, and the height of the insulating frame 47 can be adjusted according to the different working height requirements of the cross arm, thereby improving the practicality of the cross arm; when the positioning box 1 is installed, the second transmission wheel 83 is rotated by external force, and through the cooperation between the second transmission wheel 83, the two-way threaded rod 82 and the moving block 85, the two clamping rods 86 can be moved closer to or away from each other. When the two clamping rods 86 are close to each other, the positioning box 1 can be fixed to the top of the pole tower.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable cross arm, comprising a positioning box (1), characterized in that: The inner bottom wall of the positioning box (1) is slidably connected to a support frame (2), the top surface of the support frame (2) is evenly provided with two groups of inclined sliding grooves (3), the inner bottom wall of the positioning box (1) is provided with a first sliding groove (5), the top surface of the positioning box (1) is provided with a second sliding groove (6), and the interior of the inclined sliding groove (3) is slidably connected to a transmission mechanism (4) for adjusting the operating height of the cross arm; A moving mechanism (7) for adjusting the cross arm operation spacing is provided between the inner bottom wall of the positioning box (1) and the support frame (2); Both sides of the positioning box (1) are provided with positioning mechanisms (8) for fixing the positioning box (1).

2. The adjustable cross arm according to claim 1, characterized in that: The transmission mechanism (4) comprises a movable frame (41) slidably connected to the interior of the inclined slide groove (3); the bottom end of the movable frame (41) is fixedly sleeved with a second limit block (49) slidably connected to the interior of the first slide groove (5); a limit groove (42) is provided inside the movable frame (41); a first threaded rod (43) is rotatably connected inside the limit groove (42); the top end of the first threaded rod (43) passes through the top end of the movable frame (41) and is fixedly sleeved with a first transmission wheel (44).

3. The adjustable cross arm according to claim 2, characterized in that: The transmission mechanism (4) further comprises a connecting sleeve (45) threadedly connected to the periphery of the first threaded rod (43), and the connecting sleeve (45) is slidably connected to the interior of the limiting groove (42), a connecting block (46) is fixed to the periphery of the connecting sleeve (45) and slides through one side of the movable frame (41), an insulating frame (47) is fixed to the side of the connecting block (46) away from the connecting sleeve (45), and the insulating frame (47) is slidably sleeved on the periphery of the movable frame (41).

4. The adjustable cross arm according to claim 3, characterized in that: The transmission mechanism (4) further comprises a first limiting block (48) fixedly sleeved on the periphery of the movable frame (41), and the bottom surface of the first limiting block (48) is slidably connected to the top surface of the positioning box (1).

5. The adjustable cross arm according to claim 1, characterized in that: The moving mechanism (7) comprises a first transmission groove (71) provided on the inner bottom wall of the positioning box (1); a second threaded rod (72) is rotatably sleeved inside the first transmission groove (71); the outer periphery of the second threaded rod (72) is threadedly connected to a slider (74) slidably connected to the inside of the first transmission groove (71); one end of the second threaded rod (72) passes through a side surface of the positioning box (1) and is fixedly sleeved with a rocker (73).

6. The adjustable cross arm according to claim 1, characterized in that: The positioning mechanism (8) comprises a positioning frame (81) fixed to a side surface of the positioning box (1), two second transmission grooves (84) are provided inside the positioning frame (81), a bidirectional threaded rod (82) is rotatably sleeved inside the positioning frame (81), two ends of the bidirectional threaded rod (82) are provided with two sections of threads in opposite directions, one end of the bidirectional threaded rod (82) passes through a side surface of the positioning frame (81) and is fixedly sleeved with a second transmission wheel (83).

7. The adjustable cross arm according to claim 6, characterized in that: The positioning mechanism (8) further comprises two moving blocks (85) respectively threadedly connected to the two ends of the bidirectional threaded rod (82), the peripheries of the two moving blocks (85) respectively slidingly connected to the insides of the two second transmission grooves (84), and a clamping rod (86) is fixed to one side of each moving block (85).

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