Foldable anti-bird thorn device convenient for electric power overhaul

Abstract

A foldable anti-bird thorn device facilitating electric power overhaul comprises a U-shaped base, a screw A used for being connected with a fixing plate is arranged in the middle of the upper surface of the U-shaped base, the fixing plate comprises a bottom plate and side plates arranged on the two sides of the bottom plate, and first hinge holes and second hinge holes are formed in the equal-height positions of the side faces of the side plates; the first hinge hole and the second hinge hole are connected with a first rotating shaft and a second rotating shaft respectively, two movable plates located on the inner sides of the side plates are fixedly connected to the first rotating shaft, third hinge holes used for being connected with the limiting sleeves are symmetrically formed in the upper portions of the movable plates, and mounting holes are formed in the upper ends of the movable plates; the side surface of the second rotating shaft is vertically connected with a needling fixing seat; the composite needling penetrates through the limiting sleeve and is fixed in the needling fixing seat; during operation, a user only needs to pull the movable plate to rotate by a corresponding angle, the limiting sleeve and the needling fixing base are made to rotate, the limiting sleeve is far away from the needling fixing base, the composite needling can be bundled, and electric power overhaul operation can be completed conveniently and rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of bird-proof equipment for power transmission line towers, in particular to a retractable bird-proof spike device which is convenient for power maintenance. Background Art

[0002] In recent years, as people's awareness of protecting nature and caring for wild animals continues to increase, the number of birds has increased. Most birds regard transmission line towers erected in the open field as an ideal place to stay, rest or build nests. However, if birds stay for a long time, the bird droppings they excrete will pollute power equipment such as insulators, reduce the insulation performance, and then cause short-circuit tripping of transmission lines, which seriously affects the safe operation of the power grid. The existing technology is to install anti-bird spikes on transmission line towers to prevent birds from staying or nesting. However, most anti-bird spikes are made of composite needles composed of dozens of needles. The bird-proof spikes are spread out like umbrellas during operation to form a certain protection range. When the power lines are under maintenance, the spread bird-proof spikes will threaten the operators. Therefore, there are retractable bird-proof spike devices for maintenance operations. However, most of the existing retractable bird-proof spike devices are installed independently. Due to the need for protection, multiple bird-proof spikes are often installed on the transmission line towers. During maintenance, the composite spikes of multiple bird-proof spikes must be retracted one by one, which is time-consuming and labor-intensive, and increases the danger of high-altitude operations. Moreover, most of the existing retractable bird-proof spike devices have the characteristics of complex structure and greater processing difficulty. Utility Model Content

[0003] The utility model aims to provide a retractable bird-proof device which is convenient for power maintenance. The device has a simple structure and is easy to manufacture. The composite needles for preventing bird thorns can be quickly and efficiently retracted to solve the problems of the existing retractable bird-proof device proposed in the above-mentioned background technology. During power maintenance, multiple composite needles for preventing bird thorns need to be retracted one by one, which is time-consuming and labor-intensive, and the device has a complex structure and is difficult to manufacture.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it includes a U-shaped base, a screw A for connecting to a fixing plate is provided in the middle of the upper surface of the U-shaped base, the fixing plate includes a bottom plate and side plates arranged on both sides of the bottom plate, a first hinge hole and a second hinge hole are provided at equal height positions on the sides of the side plates, the first hinge hole and the second hinge hole are respectively connected to a first rotating shaft and a second rotating shaft, two movable plates located on the inner sides of the side plates are fixedly connected to the first rotating shaft, third hinge holes for connecting to a limiting sleeve are symmetrically opened on the upper parts of the two movable plates, and a mounting hole is provided at the upper end of the movable plate; an acupuncture fixing seat is vertically connected to the side of the second rotating shaft, and the composite acupuncture passes through the limiting sleeve and is fixed in the acupuncture fixing seat, and a positioning device is provided on the upper surface of the fixing plate close to the acupuncture fixing seat.

[0005] Furthermore, the limiting sleeve is cylindrical, the outer wall of the limiting sleeve and the contact part with the movable plate are plane, and the plane is symmetrically provided with a third rotating shaft, and the third rotating shaft is used to be hinged with the third hinge hole provided on the movable plate; the line connecting the center of the third hinge hole and the first hinge hole forms an angle of 25°-30° with the horizontal plane.

[0006] Furthermore, a screw rod B is fixedly connected in the mounting hole, and one end of the screw rod B extends to the outer side of the movable plate and is rotatably connected to a transmission rod, and a limit nut is provided at the end of the screw rod B.

[0007] Furthermore, both ends of the transmission rod are provided with fourth hinge holes for rotationally connecting with the screw rod B.

[0008] Furthermore, the fixing plate is provided with a through hole for rotationally connecting with the screw rod A.

[0009] Furthermore, the positioning device includes a positioning plate fixed on the upper surface of the fixing plate on one side close to the acupuncture fixing seat, and the positioning plate is threadedly connected with a positioning screw.

[0010] Furthermore, a thread hole is provided on the lower side plate of the U-shaped base.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. During the power maintenance operation, the first rotating shaft and the second rotating shaft can be rotated by simply turning the movable plate to a corresponding angle, thereby rotating the limiting sleeve and the acupuncture fixing seat. The limiting sleeve moving away from the acupuncture fixing seat will have a convergence effect on the composite acupuncture, making it convenient for operators to complete the power maintenance operation safely and quickly;

[0013] 2. The bird-proof device can also be installed in an integrated manner on the same plane of the transmission line tower through the connection of the transmission rod. After installation, they are all in a straight line. When the composite needles need to be retracted, only the movable plate on the first bird-proof device needs to be operated to retract the composite needles on multiple bird-proof devices, which also realizes the advantages of convenience and speed and can be integrated.

[0014] 3. The device has a simple structure and is easy to process and manufacture. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 It is a left view of the utility model;

[0019] Figure 5 It is a three-dimensional schematic diagram of the U-shaped base of the utility model;

[0020] Figure 6 It is the front and top view of the fixing plate of the utility model;

[0021] Figure 7 It is a schematic diagram of the movable plate of the utility model;

[0022] Figure 8 It is a top view of the limiting sleeve of the utility model;

[0023] Fig. 9 It is the front and top view of the transmission rod of the utility model;

[0024] Fig.10 It is a schematic diagram of the composite acupuncture after being gathered in the utility model;

[0025] Fig.11 It is a schematic diagram of multiple groups of bird thorn prevention devices of the utility model being connected by transmission rods;

[0026] In the figure: 1. U-shaped base; 11. screw A, 12. thread hole; 2. fixing plate; 21. bottom plate; 22. side plate; 23. first hinge hole; 24. second hinge hole; 25. through hole; 3. first rotating shaft; 4. second rotating shaft; 5. movable plate, 51. mounting hole, 52. screw B, 53. limit nut, 54. third hinge hole; 6. limiting sleeve, 61. third rotating shaft; 7. acupuncture fixing seat; 8. composite acupuncture; 9. positioning device, 91. positioning plate, 92. positioning screw; 10. transmission rod, 101. fourth hinge hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 - Fig.11The utility model provides a technical solution: it includes a U-shaped base, a screw A for connecting to a fixing plate is provided in the middle of the upper surface of the U-shaped base, the fixing plate includes a bottom plate and side plates arranged on both sides of the bottom plate, and a first hinge hole and a second hinge hole are provided at equal height positions on the sides of the side plates, the first hinge hole and the second hinge hole are respectively connected to a first rotating shaft and a second rotating shaft, two movable plates located on the inner sides of the side plates are fixedly connected to the first rotating shaft, and third hinge holes for connecting to a limiting sleeve are symmetrically opened on the upper parts of the two movable plates, and a mounting hole is provided at the upper end of the movable plate; an acupuncture fixing seat is vertically connected to the side surface of the second rotating shaft, and the composite acupuncture passes through the limiting sleeve and is fixed in the acupuncture fixing seat, and a positioning device is provided on the upper surface of the fixing plate near the acupuncture fixing seat; in this embodiment, the bird-proof device can be provided by a U-shaped Card 11 fixes it on the cross arm of the transmission line tower. When working, the anti-bird composite needle 8 is in a scattered state to prevent birds from landing to rest or build nests. When power maintenance is required, in order to prevent the scattered composite needle 8 from affecting the staff, the composite needle 8 needs to be retracted. It is only necessary to turn the movable plate 5 to a certain angle, and the limiting sleeve 6 and the needle fixing seat 7 will also rotate a certain angle accordingly. In this process, the limiting sleeve 6 will gradually move away from the needle fixing seat 7 and converge the composite needle 8. At this time, the composite needle 8 will produce elastic force, and it will automatically reset when the movable plate 5 is loosened. In order to solve the problem of automatic reset, the positioning device 9 is designed. When the limiting sleeve 6 completes the convergence of the composite needle 8, the positioning device 9 can limit the activity of the needle fixing seat 7, so that the composite needle 8 cannot be reset, which is convenient for the power operator to complete the maintenance work smoothly.

[0029] In this embodiment, the limiting sleeve 6 is cylindrical, and the contact portion between the outer wall of the limiting sleeve 6 and the movable plate 5 is a plane, and the plane is symmetrically provided with a third rotating shaft 61, and the third rotating shaft 61 is used to be hinged with the third hinge hole 54 provided on the movable plate 5; the hole center line of the third hinge hole 54 and the first hinge hole 23 is at an angle of 30° with the horizontal plane; it should be understood that when the angle between the movable plate 5 and the horizontal plane is 30°, the central axis of the limiting sleeve 6 is perpendicular to the horizontal plane, and at this time the limiting sleeve 6 is closest to the acupuncture fixing seat 7, and the limiting sleeve 6 basically does not produce a convergence effect on the composite acupuncture 8. In this embodiment, when the movable plate 5 rotates from the horizontal 150° direction to the horizontal 30° direction, The 120° rotation angle makes the limiting sleeve 6 away from the acupuncture fixing seat 7, and the limiting sleeve 6 achieves a good effect on the convergence of the composite acupuncture 8; a screw rod B52 is fixedly connected in the mounting hole 51, and the screw rod B52 extends to the outer side of the movable plate 5 and is rotatably connected to the transmission rod 10 at one end, and a limiting nut 53 is arranged at the end of the screw rod B52; both ends of the transmission rod 10 are provided with fourth hinge holes 101 for rotationally connecting with the screw B52. The fourth hinge holes 101 arranged at both ends of the transmission rod 10 in this scheme are used to connect multiple groups of the retractable bird-proofing devices and prevent the transmission rod 10 from falling off through the limitation of the limiting nut 53. When the composite acupuncture 8 of the multiple groups of retractable bird-proofing devices is retracted, it is only necessary to pull the first hinge hole 101. The screw head of the screw B52 fixed on the movable plate 5 in the retractable bird-proof device, and the multiple transmission rods 10 will push the multiple groups of movable plates 5 on the retractable bird-proof devices to rotate, thereby causing the limiting sleeve 6 and the acupuncture fixing seat 7 to rotate accordingly, so as to achieve the purpose of the limiting sleeve 6 to retract the composite acupuncture 8; the fixing plate 2 is provided with a through hole 25 for rotationally connecting with the screw A11. This connection method is to adjust the directions of the fixing plates 2 on each group of the retractable bird-proof devices so that they are all in a straight line when multiple groups of the retractable bird-proof devices are connected through the transmission rod 10, and finally screw the locking nuts on the screw A11 in turn to lock and fix them;The positioning device 9 includes a positioning plate 91 fixed on the upper surface of the fixing plate 2 near the side of the acupuncture fixing seat 7. The positioning plate 91 is threaded with a positioning screw 92. When the power is repaired, the screw head of the screw B52 on the movable plate 5 is turned with a wrench (the screw head is a regular hexagonal end of the screw B52 body. Since the screw B52 is inserted into the mounting hole 51 and fixed by welding, when the screw head of the screw B52 is turned, the screw B52 will not rotate by itself, but drive the movable plate 5 to rotate), so that after the limiting sleeve 6 closes the composite acupuncture 8, the limiting sleeve 6 can be rotated by rotating the positioning screw 92. Position the screw 92 and press it against the bottom surface of the acupuncture fixing seat 7 to limit the rotation of the acupuncture fixing seat 7 and prevent the composite acupuncture 8 from resetting and dispersing, which is convenient for maintenance work. When the maintenance work is completed, fix the screw head of the screw B52 on the movable plate 5 with a wrench, loosen the positioning screw 92, and then loosen the wrench used for fixing the position. The composite acupuncture 8 will automatically reset due to the elastic force and maintain the vertical dispersed state. Rotate the positioning screw 92 again to make it press against the side of the acupuncture fixing seat 7 to limit the vertical state of the acupuncture fixing seat 7. ;

[0030] In this embodiment, a thread hole 12 is provided on the lower side plate of the U-shaped base 1 so that when the U-shaped base 1 is clamped on the cross arm of the transmission line tower, a fixing screw can be screwed into the thread hole 12 for fixed installation.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A retractable bird-proof device for convenient power maintenance, characterized in that: The invention comprises a U-shaped base (1), wherein a screw rod A (11) for connecting to a fixing plate (2) is provided in the middle of the upper surface of the U-shaped base (1), wherein the fixing plate (2) comprises a bottom plate (21) and side plates (22) arranged on both sides of the bottom plate (21), wherein a first hinge hole (23) and a second hinge hole (24) are provided at equal height positions on the side surfaces of the side plates (22), wherein the first hinge hole (23) and the second hinge hole (24) are respectively connected to a first rotating shaft (3) and a second rotating shaft (4), wherein a screw rod A (11) is provided on the first rotating shaft (3) and a screw rod A (11) is provided on the fixing plate (2). Two movable plates (5) are fixedly connected and located on the inner side of the side plate (22); the upper parts of the two movable plates (5) are symmetrically provided with third hinge holes (54) for connecting with the limiting sleeve (6); the upper ends of the movable plates (5) are provided with mounting holes (51); the side of the second rotating shaft (4) is vertically connected with an acupuncture fixing seat (7); the composite acupuncture (8) passes through the limiting sleeve (6) and is fixed in the acupuncture fixing seat (7); and a positioning device (9) is provided on the upper surface of the fixed plate (2) close to the acupuncture fixing seat (7).

2. The retractable bird thorn prevention device for convenient power maintenance according to claim 1 is characterized in that: The limiting sleeve (6) is cylindrical, and the contact portion between the outer wall of the limiting sleeve (6) and the movable plate (5) is a plane, and a third rotating shaft (61) is symmetrically arranged on the plane, and the third rotating shaft (61) is used for hinge connection with a third hinge hole (54) arranged on the movable plate (5); a line connecting the center of the third hinge hole (54) and the first hinge hole (23) forms an angle of 25°-30° with the horizontal plane.

3. The retractable bird thorn prevention device for convenient power maintenance according to claim 2 is characterized in that: A screw rod B (52) is fixedly connected in the mounting hole (51), and one end of the screw rod B (52) extending to the outside of the movable plate (5) is rotatably connected to a transmission rod (10), and a limiting nut (53) is provided at the end of the screw rod B (52).

4. The foldable bird thorn prevention device for convenient power maintenance according to claim 3 is characterized in that: Both ends of the transmission rod (10) are provided with fourth hinge holes (101) for rotationally connecting to the screw rod B (52).

5. The foldable bird thorn prevention device for convenient power maintenance according to claim 4 is characterized in that: The fixing plate (2) is provided with a through hole (25) for rotationally connecting with the screw rod A (11).

6. The retractable bird thorn prevention device for convenient power maintenance according to claim 1 is characterized in that: The positioning device (9) comprises a positioning plate (91) fixed to the upper surface of a fixing plate (2) on one side close to the acupuncture fixing seat (7), and the positioning plate (91) is threadedly connected with a positioning screw (92).

7. The foldable bird thorn prevention device for convenient power maintenance according to claim 1 is characterized in that: The lower side plate of the U-shaped base (1) is provided with a thread hole (12).

Images