Electric power construction site safety alarm device

Abstract

The invention provides a power construction site safety alarm device, and relates to the technical field of safety alarm devices, the power construction site safety alarm device comprises a base, the top of the base is fixedly provided with a multi-section telescopic pipe, and the top of the innermost extension end of the multi-section telescopic pipe is provided with a monitoring end which comprises a battery box. Compared with the prior art, the multi-section telescopic pipe can be driven to extend through the flexibility of the multi-section telescopic pipe and the winding and unwinding of the connecting rope by the driving assembly, so that the multi-section telescopic pipe can be driven to extend, and the service life of the multi-section telescopic pipe is prolonged. Meanwhile, the height of the monitoring end is increased, the alarm lamp and the buzzer are located at higher positions, the alarm lamp and the buzzer can be found by workers more easily once being triggered, the monitoring end can rotate, the light of the alarm lamp and the sound of the buzzer can be perceived by surrounding people, and the safety and the anti-theft capacity of the power construction site are improved.

Description

Technical Field

[0001] The invention relates to the technical field of safety alarm devices, and in particular to a safety alarm device for a power construction site. Background Art

[0002] During the power construction process, the construction site often involves the wiring and installation of weak electrical wires. Generally, some alarm facilities or warning signs are set up to remind outsiders or vehicles not to enter, and some anti-theft measures are also taken at night.

[0003] However, current alarm devices are usually installed in a fixed manner on the wall or the ground, which reduces the warning effect. When the alarm is triggered, the alarm light will usually flash and the alarm will sound. These will be affected by the installation location and cannot be quickly discovered by surrounding staff, which is not conducive to the safety protection and anti-theft protection of power construction sites. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a safety alarm device for an electric power construction site to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. Through the telescopic properties of the multi-section telescopic tube and the winding and unwinding of the connecting rope by the driving component, the multi-section telescopic tube can be driven to extend. At the same time, the height of the monitoring end will also be increased, and the alarm light and the buzzer will be placed in a higher position. Once triggered, they are easier to be discovered by the staff. The monitoring end itself can be rotated so that the alarm light and the sound of the buzzer can be perceived by people around, thereby improving the safety and anti-theft capabilities of the electric power construction site.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized through the following technical scheme: a safety alarm device for a power construction site, comprising a base, a multi-section telescopic tube is fixed on the top of the base, and a monitoring end is installed on the top of the innermost extended end of the multi-section telescopic tube, the monitoring end comprises a battery box, a rotating disk is rotatably installed on the top of the battery box through a bearing, a microwave sensor is fixedly installed on the side of the battery box, a driving assembly is provided inside the base, the driving assembly comprises a winding seat, a winding seat is fixed inside the base, and a winding shaft is rotatably installed at the middle of the winding shaft through a bearing and a torsion spring, a connecting rope is wound on the winding shaft, and the other end of the connecting rope is fixedly connected to the bottom of the battery box, one end of the winding shaft is slidably plugged with a push rod, and the other end of the push rod slides out of the base, and the other end of the winding shaft is inserted with an insertion shaft, a motor is installed on the outside of the corresponding insertion shaft inside the base, and the output end of the motor is fixedly connected to the socket, a cable tray is rotatably installed at the center of the top circle of the base through a bearing, and the connecting rope passes through the cable tray.

[0006] Furthermore, the monitoring end also includes a connecting seat, and the bottom of the battery box is rotatably mounted with the connecting seat through a bearing, the bottom of the connecting seat is fixed to the rotating disk, and the bottom of the connecting seat is fixedly connected to the connecting rope.

[0007] Furthermore, each of the multiple-section telescopic tubes has a cavity with the same inner diameter, and a first spring is fixed between the bottom of each section of the multiple-section telescopic tube and the inner wall of another section, and the connecting rope passes through the cavity.

[0008] Furthermore, a storage frame is fixed to the top of the outermost storage end of the multi-section telescopic tube, and a transparent shell is arranged on the surface of the storage frame.

[0009] Furthermore, the driving assembly also includes a mounting plate, the mounting plate is fixed to the back of the motor, a plurality of second springs are fixed on the other side surface of the mounting plate, and the other end of the second spring is fixedly connected to the inner wall of the base, a second bevel gear is sleeved on the surface of the connecting shaft, and the top of the second bevel gear is meshedly connected to the first bevel gear.

[0010] Furthermore, a connecting shaft is fixed to the top of the first bevel gear, and a transmission gear is fixed to the top of the connecting shaft. The top of the transmission gear is rotatably mounted on the inner wall of the base through a bearing. A gear ring is fixed to the outer side of the rotating disk, and the gear ring is meshingly connected with the transmission gear.

[0011] Furthermore, a socket is slidably installed inside the winding shaft, and two insertion rods are fixed to one end of the socket facing the top rod. The insertion rods are slidably inserted into the interior of the winding shaft, and a third spring is sleeved on the surface of the insertion rods.

[0012] Furthermore, convex strips are fixed on the upper and lower surfaces of the insertion shaft, and the second bevel gear is slidably engaged with the convex strips. A slot is provided on the surface of the socket at a position corresponding to the convex strip, and the convex strip is slidably engaged in the slot.

[0013] Furthermore, an electric push rod is fixed to the top of the base at one end of the push rod, and a vertical plate is fixed to the extended end of the electric push rod. The protruding end of the push rod is rotatably connected to the bottom of the vertical plate through a bearing, and the other end of the push rod slides into the socket and is fixed with a push plate, and the push plate is in extrusion contact with the plug shaft.

[0014] Furthermore, an alarm light is fixed on the top of the rotating disk, and buzzers are fixed on the bottom of both sides of the rotating disk.

[0015] Beneficial effects of the present invention:

[0016] 1. When the multi-section telescopic tube of the present invention is in the storage state, the electric push rod drives the top rod to penetrate into the interior of the winding shaft and push the plug shaft to move to the outer end of the winding shaft through the push plate until the convex strip of the plug shaft is separated from the card slot of the socket. At this time, in the absence of the card connection limit of the plug shaft, the winding shaft unwinds the connecting rope through the torsion spring, and the multi-section telescopic tube bounces upward under the elastic force of the first spring inside each section, and the multi-section telescopic tube unfolds, driving the monitoring end to move upward, pulling the top monitoring end to rotate under the action of the bottom connecting seat, and in the process of the multi-section telescopic tube rising, the monitoring end itself rotates to spread the light of the alarm light and the sound of the buzzer to the surroundings, which is more conducive to detection by people around.

[0017] 2. When the present invention stores the unfolded multi-section telescopic tube back to the initial contracted state, the electric push rod drives the top rod to move outward. At this time, the insertion shaft is reinserted into the card slot of the socket through the elastic force of the second spring, and the winding shaft is driven by the motor to rotate to wind up the connecting rope, so that the multi-section telescopic tube and the monitoring end are lowered after being subjected to downward traction until the multi-section telescopic tube is completely stored and the monitoring end is stored in the storage frame. In this state, it can be used for night monitoring to avoid being discovered by thieves and reduce the damage to the monitoring end of the device caused by the harsh environment of the construction site.

[0018] 3. The present invention drives the push rod to continue to move outward through the electric push rod. At this time, the push plate inserted into the socket by the push rod will reversely squeeze the socket, causing it to move backward through the insertion rod, compress the third spring, and separate from the insertion shaft. The side of the push plate in contact with the inner wall of the socket can be provided with anti-slip grooves to prevent the winding shaft from rotating by itself. The multi-section telescopic tube is in the storage state. After the motor is turned on, it drives the rotation of the cable tray alone. The monitoring end rotates inside the storage frame. At this time, the transparent shell and the microwave sensor can be used to perform 360-degree monitoring to improve the warning effect and make it easier to be discovered by surrounding staff.

[0019] 4. The present invention uses the internal cavity of the multi-section telescopic tube to pass the connecting rope and provide the connecting rope with space to rotate around the center of the circle, thereby driving the rotation of the monitoring end.

[0020] 5. Compared with the prior art, the present invention can drive the multi-section telescopic tube to extend through the telescopicity of the multi-section telescopic tube and the winding and unwinding of the connecting rope by the driving component. At the same time, the height of the monitoring end will also be increased, so that the alarm light and the buzzer are placed at a higher position. Once triggered, they are easier to be discovered by the staff. The monitoring end itself can be rotated so that the alarm light and the sound of the buzzer can be perceived by people around, thereby improving the safety and anti-theft capabilities of the power construction site. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a safety alarm device for a power construction site according to the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of a multi-section telescopic tube of a safety alarm device for a power construction site of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of a monitoring end of a safety alarm device for a power construction site according to the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of a base of a safety alarm device for a power construction site according to the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of a driving component of a safety alarm device for a power construction site according to the present invention;

[0026] Figure 6 A schematic diagram of the connection between a cable tray and a motor of a safety alarm device for an electric power construction site according to the present invention;

[0027] Figure 7 This is a schematic diagram of the connection between the reel and the plug shaft of a safety alarm device for a power construction site according to the present invention;

[0028] Figure 8 The present invention is a schematic diagram of the connection between a reel and an insertion shaft of a safety alarm device for an electric power construction site.

[0029] In the figure: 1. base; 2. multi-section telescopic tube; 21. first spring; 22. cavity; 3. storage frame; 31. transparent shell; 4. monitoring end; 41. rotating disk; 42. alarm light; 43. battery box; 44. buzzer; 45. microwave sensor; 46. connecting seat; 47. connecting rope; 5. driving assembly; 51. winding seat; 52. winding shaft; 53. push rod; 54. cable tray; 55. gear ring; 56. transmission gear; 57. connecting shaft; 58. first bevel gear; 59. mounting plate; 510. motor; 511. second spring; 512. second bevel gear; 513. electric push rod; 514. vertical plate; 515. plug shaft; 516. socket; 517. plug rod; 518. third spring; 519. convex strip; 520. card slot; 521. push plate. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] See also Figures 1 to 8The present invention provides a technical solution: a safety alarm device for a power construction site, comprising a base 1, a multi-section telescopic tube 2 is fixed on the top of the base 1, and a monitoring terminal 4 is installed on the top of the innermost extended end of the multi-section telescopic tube 2, the monitoring terminal 4 comprises a battery box 43, a rotating disk 41 is rotatably installed on the top of the battery box 43 through a bearing, a microwave sensor 45 is fixedly installed on the side of the battery box 43, a driving component 5 is arranged inside the base 1, the driving component 5 comprises a winding seat 51, a winding seat 51 is fixed inside the base 1, and a winding shaft 52 is rotatably installed in the middle of the winding shaft 52 through a bearing and a torsion spring, a connecting rope 47 is wound on the winding shaft 52, and the other end of the connecting rope 47 is fixedly connected to the bottom of the battery box 43, the winding shaft 52 One end of the reel 52 is slidably connected with a push rod 53, and the other end of the push rod 53 slides out of the base 1, and the other end of the reel 52 is inserted with an insertion shaft 515. A motor 510 is installed inside the base 1 corresponding to the outer side of the insertion shaft 515, and the output end of the motor 510 is fixedly connected to the socket 516. A cable tray 54 is rotatably installed at the center of the top of the base 1 through a bearing, and the connecting rope 47 passes through the cable tray 54. When the device is used, the base 1 is fixed on the ground in the monitoring area, and then monitored by the microwave sensor 45. When a passerby or a vehicle passes through the monitoring area of ​​the microwave sensor 45, an electrical signal is transmitted to the drive component 5, and the drive component 5 drives the multi-section telescopic tube 2 to unfold and the warning light and the buzzer 44 to rotate, so as to improve the warning effect and make it easier to be discovered by the surrounding staff.

[0032] In this embodiment, the monitoring end 4 also includes a connecting seat 46, and the bottom of the battery box 43 is rotatably mounted with the connecting seat 46 through a bearing. The bottom of the connecting seat 46 is fixed to the rotating disk 41, and the bottom of the connecting seat 46 is fixedly connected to the connecting rope 47. The interior of the multi-section telescopic tube 2 is provided with a cavity 22 with the same inner diameter, and a first spring 21 is fixed between the bottom of each section of the multi-section telescopic tube 2 and the inner wall of another section, and the connecting rope 47 passes through the cavity 22. An alarm light 42 is fixed to the top of the rotating disk 41, and buzzers 44 are fixed to the bottom of both sides of the rotating disk 41. The cavity 22 inside the multi-section telescopic tube 2 is used to pass the connecting rope 47 and provide space for the connecting rope 47 to rotate around the center of the circle, thereby driving the rotation of the monitoring end 4.

[0033] In this embodiment, a storage frame 3 is fixed on the top of the outermost storage end of the multi-section telescopic tube 2, and a transparent shell 31 is arranged on the surface of the storage frame 3. The storage frame 3 can store the monitoring end 4 to protect the monitoring end 4. The position of the microwave sensor 45 corresponds to the transparent shell 31, which is convenient for monitoring the surroundings. The transparent shell 31 can be plugged in separately, which is convenient for maintenance of the microwave sensor 45.

[0034] In this embodiment, the driving assembly 5 also includes a mounting plate 59, the mounting plate 59 is fixed to the back of the motor 510, a plurality of second springs 511 are fixed to the other side surface of the mounting plate 59, and the other end of the second spring 511 is fixedly connected to the inner wall of the base 1, a second bevel gear 512 is sleeved on the surface of the connecting shaft 57, the top of the second bevel gear 512 is meshedly connected to the first bevel gear 58, the top of the first bevel gear 58 is fixed with a connecting shaft 57, and the top of the connecting shaft 57 is fixed with a transmission gear 56, the top of the transmission gear 56 is rotatably mounted on the inner wall of the base 1 through a bearing, a gear ring 55 is fixed to the outer side of the rotating disk 41, and the gear ring 55 is meshedly connected with the transmission gear 56, the winding shaft 52 A socket 516 is slidably installed inside, and two plug rods 517 are fixed to one end of the socket 516 facing the top rod 53, and the plug rod 517 is slidably inserted into the inside of the winding shaft 52, and a third spring 518 is sleeved on the surface of the plug rod 517, convex strips 519 are fixed on the upper and lower surfaces of the plug shaft 515, and the second bevel gear 512 is slidably engaged with the convex strips 519, and a slot 520 is provided on the surface of the socket 516 at a position corresponding to the convex strip 519, and the convex strip 519 is slidably inserted into the inside of the slot 520, and the base 1 is fixed with an electric push rod 513 at the top of one end of the top rod 53, and a vertical plate 514 is fixed to the extended end of the electric push rod 513, and the protruding end of the top rod 53 and the bottom of the vertical plate 514 are connected by The bearing is rotatably connected, and the other end of the push rod 53 slides into the socket 516 where a push plate 521 is fixed, and the push plate 521 is in squeeze contact with the plug shaft 515. There are three modes of cooperation between the drive component 5 and the multi-section telescopic tube 2 and the monitoring end 4. The first mode: when the multi-section telescopic tube 2 is in the storage state, the electric push rod 513 drives the push rod 53 to penetrate into the interior of the winding shaft 52 and push the plug shaft 515 to move toward the outer end of the winding shaft 52 through the push plate 521 until the convex strip 519 of the plug shaft 515 is separated from the card groove 520 of the socket 516. At this time, in the absence of the card limit of the plug shaft 515, the winding shaft 52 unwinds the connecting rope 47 through the torsion spring, and the multi-section telescopic tube 2 bounces upward under the elastic force of the first spring 21 inside each section. The retractable tube 2 unfolds, driving the monitoring end 4 to move upward. During this process, the plug shaft 515 moves outward along the winding shaft 52. Because the second bevel gear 512 is also engaged with the convex strip 519 of the plug shaft 515, the motor 510 moves backward through the mounting plate 59 and the second spring 511, and can still maintain the drive to the second bevel gear 512. The motor 510 drives the second bevel gear 512 to rotate and mesh with the first bevel gear 58. Through the transmission of the connecting shaft 57, the transmission gear 56 meshes with the gear ring 55 to drive the rotation of the cable tray 54. Because the connecting rope 47 passes through the cable tray 54, it will move in a circle with the cable tray 54 and pull the top monitoring end 4 to rotate under the action of the bottom connecting seat 46. This process can be used as a trigger process.When a vehicle or a pedestrian passes through the monitoring area of ​​the microwave sensor 45 of the device during the day or at night, it will be triggered. During the rising process of the multi-section telescopic tube 2, the monitoring end 4 rotates itself to spread the light of the alarm light 42 and the sound of the buzzer 44 to the surroundings, which is more conducive to the discovery of people around. In the second mode, when the unfolded multi-section telescopic tube 2 is stored back to the initial contracted state, the electric push rod 513 drives the top rod 53 to move outward. At this time, the plug shaft 515 is reinserted into the slot 520 of the socket 516 through the elastic force of the second spring 511, and the winding shaft 52 is driven by the motor 510 to rotate to reel in the connecting rope 47, so that the multi-section telescopic tube 2 and the monitoring end 4 descend after being subjected to the downward traction force until the multi-section telescopic tube 2 is completely stored and the monitoring end 4 is stored in the storage frame 3. In this state, It can be used for night monitoring to avoid being discovered by thieves and reduce the damage to the monitoring end 4 of the device caused by the harsh environment of the construction site. In the third mode, the electric push rod 513 drives the push rod 53 to continue to move outward. At this time, the push plate 521 inserted into the socket 516 will reversely squeeze the socket 516, so that it moves backward through the plug rod 517, compressing the third spring 518 and separating from the plug shaft 515. The side where the push plate 521 contacts the inner wall of the socket 516 can be provided with anti-slip grooves to prevent the winding shaft 52 from rotating by itself. The multi-section telescopic tube 2 is in the storage state. After the motor 510 is turned on, it drives the cable tray 54 to rotate alone. The monitoring end 4 rotates inside the storage frame 3. At this time, the transparent shell 31 and the microwave sensor 45 can be used to perform 360-degree monitoring.

[0035] When using the device, the base 1 is fixed on the ground of the monitoring area, and then monitoring is carried out through the microwave sensor 45. There are three modes of cooperation between the drive component 5 and the multi-section telescopic tube 2 and the monitoring end 4. The first mode: when the multi-section telescopic tube 2 is in the storage state, the electric push rod 513 drives the top rod 53 to penetrate into the interior of the winding shaft 52 and pushes the plug shaft 515 to move toward the outer end of the winding shaft 52 through the push plate 521 until the convex strip 519 of the plug shaft 515 is separated from the card groove 520 of the socket 516. At this time, in the absence of the card limit of the plug shaft 515, the winding shaft 52 unwinds the connecting rope 47 through the torsion spring, and the multi-section telescopic tube 2 bounces upward under the elastic force of the first spring 21 inside each section, and the multi-section telescopic tube 2 unfolds, driving the monitoring end 4 to move upward. During this process, the plug shaft 515 moves outward along the winding shaft 52. Because the second bevel gear 512 is also engaged with the convex strip 519 of the plug shaft 515, the motor 510 moves backward through the mounting plate 59 and the second spring 511, and can still maintain the drive to the second bevel gear 512. The motor 510 drives the second bevel gear 512 to rotate and mesh with the first bevel gear 58. Through the transmission of the connecting shaft 57, the transmission gear 56 meshes with the gear ring 55 to drive the rotation of the cable tray 54. Because the connecting rope 47 passes through the cable tray 54, it will move in a circle with the cable tray 54 and pull the top monitoring end 4 to rotate under the action of the bottom connecting seat 46. This process can be used as a trigger process. When a vehicle or passerby passes by the microwave oven of this device during the day or at night When the sensor 45 monitors the area, it will be triggered. During the rising process of the multi-section telescopic tube 2, the monitoring end 4 rotates itself to spread the light of the alarm lamp 42 and the sound of the buzzer 44 to the surroundings, which is more conducive to the discovery of people around. In the second mode, when the unfolded multi-section telescopic tube 2 is stored back to the initial contracted state, the electric push rod 513 drives the top rod 53 to move outward. At this time, the plug shaft 515 is reinserted into the slot 520 of the socket 516 through the elastic force of the second spring 511, and the winding shaft 52 is driven by the motor 510 to rotate to reel in the connecting rope 47, so that the multi-section telescopic tube 2 and the monitoring end 4 descend after being subjected to the downward traction force until the multi-section telescopic tube 2 is completely stored and the monitoring end 4 is stored in the storage frame 3. In this state, it can be used for night monitoring. In order to avoid being discovered by thieves, it can also reduce the damage to the monitoring end 4 of the device caused by the harsh environment of the construction site. In the third mode, the electric push rod 513 drives the push rod 53 to continue to move outward. At this time, the push plate 521 of the push rod 53 inserted into the socket 516 will reversely squeeze the socket 516, so that it moves backward through the insertion rod 517, compressing the third spring 518 and separating from the insertion shaft 515. The side of the push plate 521 in contact with the inner wall of the socket 516 can be provided with anti-slip grooves to prevent the winding shaft 52 from rotating by itself. The multi-section telescopic tube 2 is in the storage state. After the motor 510 is turned on, it drives the rotation of the cable tray 54 alone, and the monitoring end 4 rotates inside the storage frame 3. At this time, 360-degree monitoring can be carried out through the cooperation of the transparent shell 31 and the microwave sensor 45.To improve the warning effect and make it easier for surrounding staff to find it.

[0036] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A safety alarm device for a power construction site, comprising a base (1), characterized in that: A plurality of telescopic tubes (2) are fixed on the top of the base (1), and a monitoring end (4) is installed on the top of the innermost extended end of the plurality of telescopic tubes (2), the monitoring end (4) comprising a battery box (43), a rotating disk (41) is rotatably installed on the top of the battery box (43) via a bearing, a microwave sensor (45) is fixedly installed on the side of the battery box (43), a driving assembly (5) is provided inside the base (1), the driving assembly (5) comprises a winding seat (51), a winding seat (51) is fixed inside the base (1), and a winding shaft (52) is rotatably installed in the middle of the winding shaft (52) via a bearing and a torsion spring, A connecting rope (47) is wound on the winding shaft (52), and the other end of the connecting rope (47) is fixedly connected to the bottom of the battery box (43); a top rod (53) is slidably inserted into one end of the winding shaft (52), and the other end of the top rod (53) slides through the base (1); an insertion shaft (515) is inserted into the other end of the winding shaft (52); a motor (510) is installed inside the base (1) corresponding to the outer side of the insertion shaft (515), and the output end of the motor (510) is fixedly connected to the socket (516); a cable tray (54) is rotatably installed at the center of the top circle of the base (1) through a bearing, and the connecting rope (47) passes through the cable tray (54).

2. The electric power construction site safety alarm device according to claim 1 is characterized by: The monitoring end (4) further comprises a connecting seat (46), the bottom of the battery box (43) is rotatably mounted with the connecting seat (46) via a bearing, the bottom of the connecting seat (46) is fixed to the rotating disk (41), and the bottom of the connecting seat (46) is fixedly connected to the connecting rope (47).

3. The safety alarm device for electric power construction site according to claim 1 is characterized by: The multi-section telescopic tube (2) is provided with a cavity (22) with the same inner diameter, and a first spring (21) is fixed between the bottom of each section of the multi-section telescopic tube (2) and the inner wall of another section, and the connecting rope (47) passes through the cavity (22).

4. The electric power construction site safety alarm device according to claim 1 is characterized by: A storage frame (3) is fixed to the top of the outermost storage end of the multi-section telescopic tube (2), and a transparent shell (31) is provided on the surface of the storage frame (3).

5. The electric power construction site safety alarm device according to claim 1 is characterized by: The driving assembly (5) further comprises a mounting plate (59), the mounting plate (59) being fixed to the back of the motor (510), a plurality of second springs (511) being fixed to the other side surface of the mounting plate (59), and the other end of the second spring (511) being fixedly connected to the inner wall of the base (1), a second bevel gear (512) being sleeved on the surface of the connecting shaft (57), and the top of the second bevel gear (512) being meshingly connected to the first bevel gear (58).

6. The electric power construction site safety alarm device according to claim 5, characterized in that: A connecting shaft (57) is fixed to the top of the first bevel gear (58), and a transmission gear (56) is fixed to the top of the connecting shaft (57). The top of the transmission gear (56) is rotatably mounted on the inner wall of the base (1) via a bearing. A gear ring (55) is fixed to the outer side of the rotating disk (41), and the gear ring (55) is meshingly connected with the transmission gear (56).

7. The safety alarm device for electric power construction site according to claim 6 is characterized by: A socket (516) is slidably mounted inside the reel (52), and two insertion rods (517) are fixed to one end of the socket (516) facing the top rod (53). The insertion rods (517) are slidably inserted into the interior of the reel (52), and a third spring (518) is sleeved on the surface of the insertion rods (517).

8. The electric power construction site safety alarm device according to claim 7, characterized in that: The upper and lower surfaces of the insertion shaft (515) are fixed with convex strips (519), and the second bevel gear (512) is slidably engaged with the convex strips (519). A slot (520) is provided on the surface of the socket (516) at a position corresponding to the convex strip (519), and the convex strip (519) is slidably engaged inside the slot (520).

9. The electric power construction site safety alarm device according to claim 8, characterized in that: An electric push rod (513) is fixed to the top of the base (1) at one end of the push rod (53), and a vertical plate (514) is fixed to the extended end of the electric push rod (513). The protruding end of the push rod (53) is rotatably connected to the bottom of the vertical plate (514) via a bearing. The other end of the push rod (53) slides into the socket (516) and a push plate (521) is fixed inside the socket. The push plate (521) is in compression contact with the insertion shaft (515).

10. The electric power construction site safety alarm device according to claim 1, characterized in that: An alarm light (42) is fixed on the top of the rotating disk (41), and buzzers (44) are fixed on the bottoms of both sides of the rotating disk (41).

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