Safety falling protector for communication base station of LED (light-emitting diode) street lamp pole

Abstract

The utility model discloses a safety falling protector for an LED (light-emitting diode) street lamp pole communication base station, which relates to the technical field of falling protectors and comprises a mounting seat with a door-shaped longitudinal section, two ends in an opening of the mounting seat are rotatably connected with fixing plates with the same structure, and one side walls, close to each other, of the two fixing plates are provided with a vertically through semicircular channel I; according to the device, when the device falls down, the rolling wheel tightly attached to the outer wall of the lamp pole can drive the stop mechanism to operate, so that the rack plate pushes the friction plate to slide out of the fixing plate to apply pressure to the outer wall of the lamp pole so as to increase the friction force between the device and the lamp pole, and meanwhile, only the coil spring is subjected to energy storage under the action of the ratchet wheel; when the surface of the friction plate or the outer arc wall of the rolling wheel is damaged, the contact area with the lamp pole is reduced, and then friction force is reduced, the energy storage mechanism can release energy to abut against the rack plate to prevent the rack plate from moving reversely, the friction plate is tightly attached to the outer wall of the lamp pole all the time, falling is prevented, the service life is longer, and the falling prevention effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-falling devices, in particular to a safety anti-falling device for a communication base station on an LED street lamp pole. Background Technique

[0002] With the proposal of the concept of smart city and the rapid development of 5G communication technology, as an important part of urban infrastructure, the functions of street lamp poles are becoming increasingly diversified. Not only can micro base stations be installed on street lamp poles to provide communication services, but also wireless network receivers and video and audio recording devices can be installed. Therefore, it is particularly important to ensure the stable installation and safe operation of these devices on street lamp poles. The emergence of the safety anti-falling device for a communication base station on a street lamp pole is designed to meet this demand.

[0003] The existing anti-falling devices generally fix communication devices on the lamp pole through two fixing rings. In order to prevent falling, rubber or other materials that can increase friction are added to the inner arc wall of the fixing ring to overcome the gravity of the communication device itself to prevent falling. However, since such devices are fixed on the street lamp pole and exposed to the external environment, they are exposed to wind, rain, and sunlight for a long time, and the surface of the friction-increasing material on its surface will also be damaged, resulting in a decrease in the friction force on the lamp pole, and there will be a potential risk of falling for the entire device.

[0004] In view of this, this application is specifically proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a safety anti-falling device for a communication base station on an LED street lamp pole to solve the problems raised in the above background technique.

[0006] To solve the above technical problems, a safety anti-falling device for a communication base station on an LED street lamp pole provided by the utility model includes a mounting seat with a U-shaped longitudinal section. At both ends inside the open mouth of the mounting seat, there are rotatably connected fixing plates with the same structure. On one side wall of the two fixing plates close to each other, there is a vertically penetrating semi-circular channel one. On the inner arc wall of the channel one, there are storage grooves one symmetrically arranged about the center of the top of the fixing plate. A stop mechanism is arranged in the storage groove one. The stop mechanism includes a roller rotatably connected to the inner wall of the storage groove one. The outer arc wall of the roller is located inside the channel one and the axis direction of the roller is perpendicular to the axis direction of the channel one. On one side wall of the roller, there is a sprocket one fixedly connected. On the side of the sprocket one away from the channel one, there is a sprocket one with the same structure. The outer sides of the two sprockets one are both meshed with the same chain one. On the side wall of the sprocket one away from the roller and away from the roller, there is a sprocket two fixedly connected. At the bottom of the sprocket two, there is a sprocket two with the same structure. The outer sides of the two sprockets two are both meshed with the same chain two;

[0007] A gear 1 is fixedly connected to a side wall of a sprocket wheel 1 far away from the roller and close to the roller, a rotating shaft 1 is fixedly connected to a side wall of a sprocket wheel 2 located at the bottom and close to the roller, a gear 2 is rotatably connected to an end of an outer arc wall of the rotating shaft 1 close to the roller, a rack plate is meshed and connected to the side of the gear 1 and the gear 2 close to each other, a vertical friction plate is fixedly connected to a side wall of the rack plate far away from the gear 1 and the gear 2, and an energy storage mechanism is provided on a side wall of the rotating shaft 1 close to the roller.

[0008] Furthermore, the energy storage mechanism includes a ratchet fixedly connected to a side wall of the rotating shaft 1 close to the roller, a pawl fixedly connected to the outer side of a side wall of the gear 2 away from the sprocket 2, the pawl and the ratchet mesh with each other, a horizontal limit column fixedly connected to the outer side of a side wall of the ratchet close to the roller, a coil spring is provided on the side of the ratchet close to the roller, the limit column abuts against the outer end of the coil spring, a limit plate is provided on the side of the coil spring close to the roller, a spiral channel 2 is provided transversely penetrating the side wall of the limit plate, one end of the limit column away from the ratchet is slidably connected to the channel 2, a box body is provided on the side of the limit plate away from the coil spring, the outer arc wall of the coil spring abuts against the inner arc wall of the box body, a rotating shaft 2 is provided at the center of the inner side wall of the box body close to the limiting plate, the rotating shaft 2 penetrates the limiting plate and is rotatably connected to the ratchet, and the inner end of the coil spring is fixedly connected to the outer arc wall of the rotating shaft 2.

[0009] Furthermore, the storage groove on the inner arc wall of the fixed plate has two vertically distributed openings, and the two openings are interconnected with channel one, wherein the roller is located at the upper opening, and the friction plate is located at the lower opening, the two sprocket wheels 1 and the roller and the two sprocket wheels 2 are respectively located in three mutually parallel vertical planes, and one end of the rack plate away from gear one and gear two is inclined away from the roller direction, and the friction plate is not located in channel one in the initial state.

[0010] Furthermore, two vertical rotating shafts three are fixedly connected in the opening of the mounting seat, a vertical channel three is provided at the top of one end of the fixing plate close to the mounting seat, the cross-section of the channel three is a semicircular rectangle, the rotating shaft three is slidably connected in the channel three, and a handle is fixedly connected to one end of the bottom of the fixing plate close to the mounting seat.

[0011] Furthermore, when the two fixing plates abut against each other, the four stopping mechanisms are distributed in a circular array about channel one, and a storage groove 2 is provided at the bottom end of a side wall close to each other on one end of the two fixing plates away from the mounting seat, and a locking mechanism is provided in the storage groove 2.

[0012] Furthermore, the locking mechanism includes a limit block fixedly connected to the inner wall of the second storage groove, a storage groove three is provided inside the limit block, a semicircular lock tongue is rotatably connected in the third storage groove, the longitudinal section of the semicircular lock tongue is semicircular, a lever is fixedly connected to the outer arc wall of the semicircular lock tongue away from the second storage groove, one end of the lever is perpendicular to the horizontal plane of the semicircular lock tongue, the other end of the lever passes through the limit block and is parallel to the outer wall of the limit block, one end of the lever is fixedly connected to a spring on the side wall close to the semicircular lock tongue, and the spring is fixedly connected to the inner wall of the third storage groove.

[0013] Furthermore, the locking mechanisms on the two fixed plates are symmetrical about the midpoint of the line connecting the centers of the inner walls of the two storage slots, and a channel four is provided at the bottom end of one of the storage slots, and the end of the lever away from the semicircular lock tongue passes through the channel four and is located on the outside of the fixed plate.

[0014] Furthermore, a material for increasing friction is provided on a side wall of the friction plate away from the rack plate, and a material for increasing friction is provided on an outer arc wall of the roller.

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

[0016] 1. When the device itself falls, the roller close to the outer wall of the lamp pole will drive the stop mechanism to operate, so that the rack plate pushes the friction plate to slide out of the fixed plate and exerts pressure on the outer wall of the lamp pole to increase the friction between the device itself and the lamp pole. At the same time, under the action of the ratchet, only the coil spring is energy stored. When the surface of the friction plate or the outer arc wall of the roller is damaged, resulting in a smaller contact area with the lamp pole, thereby reducing the friction force, the energy storage mechanism will release energy to resist the rack plate to prevent its reverse movement, so that the friction plate is always tightly fitted with the outer arc wall of the lamp pole to prevent falling, so that the service life is longer and the anti-fall effect is better.

[0017] 2. Through the locking mechanism, when installing, you only need to fix the fixing plate on the outer wall of the lamp pole, rotate the two fixing plates to a horizontal state and then close them together to complete the fixation. When disassembling, you only need to push the lever to release the fixation, and the device will not fall quickly due to fixed contact, which improves the installation efficiency and further ensures the construction safety during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a stop mechanism in a safety fall arrester for a LED street light pole communication base station;

[0019] Figure 2 This is a structural schematic diagram of an energy storage mechanism in a safety fall arrester for a LED street light pole communication base station;

[0020] Figure 3 This is a structural schematic diagram of a LED street light pole communication base station safety fall arrester when it is completely closed;

[0021] Figure 4 It is a structural schematic diagram when the overall expansion of a safety anti-falling device for an LED street lamp pole communication base station;

[0022] Figure 5 It is Figure 4 the internal structure sectional view at position A in

[0023] In the figure:

[0024] 10. Mounting base; 11. Fixed plate; 12. Handle;

[0025] 20. Stopping mechanism; 21. Roller; 22. Friction plate; 23. Sprocket one; 24. Gear one; 25. Gear two; 26. Chain one; 27. Chain two; 28. Rack plate; 29. Sprocket two;

[0026] 30. Energy storage mechanism; 31. Box body; 32. Limiting plate; 33. Torsion spring; 34. Limiting column; 35. Ratchet; 36. Pawl;

[0027] 40. Locking mechanism; 41. Semi-circular locking tongue; 42. Lever; 43. Spring; 44. Limiting block. Specific implementation mode

[0028] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-5 , the present invention provides a technical solution: including a mounting base 10 with a U-shaped longitudinal section, both ends inside the open mouth of the mounting base 10 are rotatably connected with fixed plates 11 with the same structure. On one side wall of the two fixed plates 11 close to each other, there is a vertically penetrating semi-circular channel one. On the inner arc wall of the channel one, there are storage grooves one symmetrically arranged about the center of the top of the fixed plate 11. A stopping mechanism 20 is arranged in the storage groove one. The stopping mechanism 20 includes a roller 21 rotatably connected to the inner wall of the storage groove one. The outer arc wall of the roller 21 is located inside the channel one and the axis direction of the roller 21 is perpendicular to the axis direction of the channel one. A sprocket one 23 is fixedly connected to one side wall of the roller 21. There is a sprocket one 23 with the same structure on the side of the sprocket one 23 away from the channel one. The outer sides of the two sprockets one 23 are both meshed with the same chain one 26. On the side wall of the sprocket one 23 away from the roller 21 among them, a sprocket two 29 is fixedly connected to the side away from the roller 21. There is a sprocket two 29 with the same structure at the bottom of the sprocket two 29. The outer sides of the two sprockets two 29 are both meshed with the same chain two 27;

[0030] On one side wall of the first sprocket 23 far from the roller 21 and close to the roller 21, a first gear 24 is fixedly connected. On one side wall of the second sprocket 29 at the bottom and close to the roller 21, a first rotating shaft is fixedly connected. One end of the outer arc wall of the first rotating shaft close to the roller 21 is rotatably connected with a second gear 25. On the mutually approaching sides of the first gear 24 and the second gear 25, the same rack plate 28 is meshingly connected. On the side wall of the rack plate 28 far from the first gear 24 and the second gear 25, a vertical friction plate 22 is fixedly connected. On the side wall of the first rotating shaft close to the roller 21, an energy storage mechanism 30 is provided.

[0031] It should be noted that: the axial extension direction of the first channel in the fixing plate 11 in the text is the vertical direction, which is the installation direction of the lamp post. Therefore, the stopping mechanism 20 is vertically arranged, that is, the axis of the roller 21 is perpendicular to the axis of the first channel. In addition, only part of the outer arc wall of the roller 21 is located in the first channel, and the fixed first sprocket 23 and the subsequent components are all located inside the fixing plate 11, so the influence of natural factors can be reduced to a certain extent.

[0032] Please refer to Figures 1-5 , the present utility model provides a technical solution: the energy storage mechanism 30 includes a ratchet wheel 35 fixedly connected to the side wall of the first rotating shaft close to the roller 21. On the outer side of the side wall of the second gear 25 far from the second sprocket 29, a ratchet pawl 36 is fixedly connected. The ratchet pawl 36 is meshingly connected with the ratchet wheel 35. On the outer side of the side wall of the ratchet wheel 35 close to the roller 21, a horizontal limiting column 34 is fixedly connected. A coil spring 33 is provided on the side of the ratchet wheel 35 close to the roller 21. The limiting column 34 abuts against the outer end of the coil spring 33. A limiting plate 32 is provided on the side of the coil spring 33 close to the roller 21. On the side wall of the limiting plate 32, a spiral second channel is horizontally penetrated. One end of the limiting column 34 far from the ratchet wheel 35 is slidably connected in the second channel. A box body 31 is provided on the side of the limiting plate 32 far from the coil spring 33. The outer arc wall of the coil spring 33 abuts against the inner arc wall of the box body 31. At the center of the inner side wall of the box body 31 close to the limiting plate 32, a second rotating shaft is provided. The second rotating shaft penetrates the limiting plate 32 and is rotatably connected to the ratchet wheel 35. The inner end of the coil spring 33 is fixedly connected to the outer arc wall of the second rotating shaft.

[0033] It should be noted that: when the stopping mechanism 20 operates normally, the meshing of the rack plate 28 and the second gear 25 will not affect the energy storage mechanism 30. The rotation of the first rotating shaft will only drive the ratchet wheel 35 to rotate to drive the coil spring 33 to wind up. In addition, since the radius of the coil spring 33 changes when it winds up, the second channel can adapt to this change.

[0034] Please refer to Figures 1-5, the present utility model provides a technical solution: the storage groove on the inner arc wall of the fixing plate 11 has two vertically distributed openings, and both of the two openings are in communication with the first channel. Among them, the roller 21 is located at the upper opening, and the friction plate 22 is located at the lower opening. The two first sprockets 23, the roller 21, and the two second sprockets 29 are respectively located in three mutually parallel vertical planes. The end of the rack plate 28 away from the first gear 24 and the second gear 25 is inclined away from the direction of the roller 21. In the initial state, the friction plate 22 is not located in the first channel.

[0035] It should be noted that: due to the influence of gravity on the device itself, the direction of the force exerted by the rack plate 28 to push out the friction plate 22 is obliquely applied, which can reduce the damage to the rack plate 28 compared with applying force perpendicular to the outer wall of the lamp post.

[0036] Please refer to Figures 1-5 , the present utility model provides a technical solution: two vertical third rotating shafts are fixedly connected inside the open end of the mounting seat 10. At the top of the end of the fixing plate 11 close to the mounting seat 10, there is a vertical third channel. The cross-section of the third channel is semi-circular and rectangular. The third rotating shaft is slidably connected in the third channel. At the end of the bottom of the fixing plate 11 close to the mounting seat 10, a handle 12 is fixedly connected.

[0037] It should be noted that: the handle 12 facilitates the operation during the preliminary installation and subsequent disassembly. When the two fixing plates 11 approach each other on the opposite sides, the fixing plate 11 cannot rotate along the third rotating shaft. Only when the fixing plate 11 is located on both sides of the open end of the mounting seat 10 can the fixing plate 11 rotate.

[0038] Please refer to Figures 1-5 , the present utility model provides a technical solution: after the two fixing plates 11 are in contact with each other, the four stop mechanisms 20 are annularly arranged around the first channel. On the bottom ends of the mutually adjacent side walls at the ends of the two fixing plates 11 away from the mounting seat 10, there is a second storage groove, and a locking mechanism 40 is arranged in the second storage groove.

[0039] It should be noted that: the four stop mechanisms 20 are annularly arranged to adapt to the shape of the outer wall of the lamp post.

[0040] Please refer to Figures 1-5The utility model provides a technical solution: the locking mechanism 40 includes a limit block 44 fixedly connected to the inner wall of the second storage groove, a storage groove three is arranged inside the limit block 44, a semicircular lock tongue 41 is rotatably connected in the storage groove three, the longitudinal section of the semicircular lock tongue 41 is semicircular, a lever 42 is fixedly connected to the outer arc wall of the semicircular lock tongue 41 away from the second storage groove, one end of the lever 42 is perpendicular to the horizontal plane of the semicircular lock tongue 41, the other end of the lever 42 passes through the limit block 44 and is parallel to the outer wall of the limit block 44, one end of the lever 42 is fixedly connected to the side wall of the semicircular lock tongue 41 close to the semicircular lock tongue 41, and the spring 43 is fixedly connected to the inner wall of the third storage groove.

[0041] It should be noted that: when the two relative locking mechanisms 40 abut against each other, the limit block 44 will be inserted into the gap of the second storage slot, and at the same time push the semicircular locking tongue 41 to rotate. When the horizontal surfaces of the two semicircular locking tongues 41 abut against each other, the semicircular locking tongue 41 is no longer restricted and resets to achieve locking under the action of the spring 43. At this time, the two can be separated by moving the lever 42 and then pulling the fixing plate 11.

[0042] See also Figures 1-5 The utility model provides a technical solution: the locking mechanisms 40 on the two fixing plates 11 are symmetrical about the midpoint of the line connecting the centers of the inner walls of the two storage slots 2, and a through channel 4 is provided at the bottom end of one of the storage slots, and the end of the lever 42 away from the semicircular lock tongue 41 penetrates the through channel 4 and is located on the outside of the fixing plate 11.

[0043] It should be noted that the two locking mechanisms 40 are rotationally symmetrical with each other, and only the lever 42 in one of the locking mechanisms 40 is located outside the second storage slot.

[0044] See also Figures 1-5 The utility model provides a technical solution: a material for increasing friction is provided on a side wall of the friction plate 22 away from the rack plate 28, and a material for increasing friction is provided on the outer arc wall of the roller 21.

[0045] It should be noted that this type of material is used to increase the contact area and change the surface roughness to increase friction, and can be replaced according to the specific use environment.

[0046] Working principle:

[0047] During installation, the operator holds the two fixing plates 11 and rotates them outwards to open them so as to be placed on the outer wall of the lamp pole. Then, the fixing plates 11 are rotated to a relatively horizontal state and then the two fixing plates 11 are moved closer in opposite directions. When the two fixing plates 11 are completely in contact, the locking mechanism 40 is triggered to fix the two fixing plates 11. At this time, the roller 21 is in close contact with the outer wall of the lamp pole.

[0048] When the device itself falls, the roller 21 is driven by friction to drive the stop mechanism 20 to push the rack plate 28 to slide, so that the friction plate 22 extends into the first channel and abuts against the outer wall of the lamp post to increase the friction force. At the same time, the clock spring 33 in the energy storage mechanism 30 is driven to contract and store energy. At this time, the device stops falling. If the outer walls of the roller 21 or the friction plate 22 are worn, resulting in insufficient contact area with the outer wall of the lamp post, at this time, due to the energy storage mechanism 30 losing the resistance of the stop mechanism 20, the clock spring 33 will release its stored energy to resist the rack plate 28 to prevent it from retracting, and at the same time ensure that the friction plate 22 abuts tightly against the lamp post again to prevent falling.

Claims

1. A safety fall arrester for a communication base station of an LED street light pole, comprising a mounting seat (10) having a door-shaped longitudinal section, both ends of the mounting seat (10) being rotatably connected with fixing plates (11) of the same structure, a semicircular channel 1 being vertically penetrated on a side wall of the two fixing plates (11) close to each other, a storage groove 1 being symmetrically provided on the inner arc wall of the channel 1 about the top center of the fixing plate (11), and a stop mechanism (20) being provided in the storage groove 1, characterized in that: The stopping mechanism (20) comprises a roller (21) rotatably connected to the inner wall of the storage slot 1, the outer arc wall of the roller (21) is located in the channel 1 and the axial direction of the roller (21) is perpendicular to the axial direction of the channel 1, a sprocket 1 (23) is fixedly connected to one side wall of the roller (21), a sprocket 1 (23) with the same structure is provided on the side of the sprocket 1 (23) away from the channel 1, and the outer sides of the two sprockets 1 (23) are meshedly connected to the same chain 1 (26), wherein the sprocket 1 (23) away from the roller (21) is fixedly connected to the side wall of the sprocket 1 (23) away from the roller (21), a sprocket 2 (29) with the same structure is provided at the bottom of the sprocket 2 (29), and the outer sides of the two sprockets 2 (29) are meshedly connected to the same chain 2 (27); A side wall of a sprocket wheel 1 (23) away from the roller (21) is fixedly connected to a gear wheel 1 (24); a side wall of a sprocket wheel 2 (29) located at the bottom end is fixedly connected to a rotating shaft 1; an end of an outer arc wall of the rotating shaft 1 close to the roller (21) is rotatably connected to a gear wheel 2 (25); a side of the gear wheel 1 (24) and the gear wheel 2 (25) close to each other are meshedly connected to the same rack plate (28); a side wall of the rack plate (28) away from the gear wheel 1 (24) and the gear wheel 2 (25) is fixedly connected to a vertical friction plate (22); and a side wall of the rotating shaft 1 close to the roller (21) is provided with an energy storage mechanism (30).

2. A LED street light pole communication base station safety fall arrester as claimed in claim 1, characterized in that: The energy storage mechanism (30) comprises a ratchet (35) fixedly connected to a side wall of the rotating shaft 1 close to the roller (21); a ratchet pawl (36) is fixedly connected to the outer side of a side wall of the gear 2 (25) away from the sprocket 2 (29); the ratchet pawl (36) and the ratchet (35) are meshed with each other; a horizontal limiting column (34) is fixedly connected to the outer side of a side wall of the ratchet (35) close to the roller (21); a coil spring (33) is provided on a side of the ratchet (35) close to the roller (21); the limiting column (34) abuts against the outer end of the coil spring (33); the coil spring (33) is close to the roller (21) A limiting plate (32) is provided on one side of the limiting plate (32), a spiral channel 2 is provided on the side wall of the limiting plate (32) and is transversely penetrated, one end of the limiting column (34) away from the ratchet (35) is slidably connected in the channel 2, a box body (31) is provided on the side of the limiting plate (32) away from the coil spring (33), the outer arc wall of the coil spring (33) is in contact with the inner arc wall of the box body (31), a rotating shaft 2 is provided at the center of the inner side wall of the box body (31) close to the limiting plate (32), the rotating shaft 2 penetrates the limiting plate (32) and is rotatably connected to the ratchet (35), and the inner end of the coil spring (33) is fixedly connected to the outer arc wall of the rotating shaft 2.

3. The LED street light pole communication base station safety fall arrester as claimed in claim 1, characterized in that: The storage groove on the inner arc wall of the fixed plate (11) has two vertically distributed openings, and the two openings are mutually connected with the channel one, wherein the roller (21) is located at the upper opening, and the friction plate (22) is located at the lower opening. The two sprocket wheels (23) and the roller (21) and the two sprocket wheels (29) are respectively located in three mutually parallel vertical planes, and one end of the rack plate (28) away from the gear wheel (24) and the gear wheel (25) is inclined away from the roller wheel (21), and the friction plate (22) is not located in the channel one in the initial state.

4. The LED street light pole communication base station safety fall arrester as claimed in claim 1, characterized in that: Two vertical rotating shafts three are fixedly connected in the opening of the mounting seat (10); a vertical channel three is provided at the top of one end of the fixing plate (11) close to the mounting seat (10); the cross section of the channel three is a semicircular rectangle; the rotating shaft three is slidably connected in the channel three; a handle (12) is fixedly connected at one end of the bottom of the fixing plate (11) close to the mounting seat (10).

5. The LED street light pole communication base station safety fall arrester as claimed in claim 1, characterized in that: When the two fixing plates (11) are in contact with each other, the four stopping mechanisms (20) are distributed in a circular array about the channel one, and a second storage groove is provided at the bottom end of a side wall close to each other on one end of the two fixing plates (11) away from the mounting seat (10), and a locking mechanism (40) is provided in the second storage groove.

6. A LED street light pole communication base station safety fall arrester as claimed in claim 5, characterized in that: The locking mechanism (40) comprises a limit block (44) fixedly connected to the inner side wall of the second storage groove, a third storage groove is arranged inside the limit block (44), a semicircular lock tongue (41) is rotatably connected in the third storage groove, the longitudinal section of the semicircular lock tongue (41) is semicircular, a lever (42) is fixedly connected to the outer arc wall of the semicircular lock tongue (41) away from the second storage groove, one end of the lever (42) is perpendicular to the horizontal plane of the semicircular lock tongue (41), the other end of the lever (42) passes through the limit block (44) and is parallel to the outer wall of the limit block (44), one end of the lever (42) is fixedly connected to the side wall of the semicircular lock tongue (41), and the spring (43) is fixedly connected to the inner wall of the third storage groove.

7. A LED street light pole communication base station safety fall arrester as claimed in claim 6, characterized in that: The locking mechanisms (40) on the two fixing plates (11) are symmetrical about the midpoint of the line connecting the centers of the inner side walls of the two storage slots. A through channel 4 is provided at the bottom end of one of the storage slots. An end of the lever (42) away from the semicircular locking tongue (41) passes through the through channel 4 and is located outside the fixing plate (11).

8. The LED street light pole communication base station safety fall arrester as claimed in claim 1, characterized in that: A material for increasing friction is provided on a side wall of the friction plate (22) away from the rack plate (28), and a material for increasing friction is provided on the outer arc wall of the roller (21).

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