Personnel detection protection alarm device in walking process of gantry crane cart

Abstract

The utility model relates to the technical field of cranes, in particular to a personnel detection, protection and alarm device in the travelling process of a gantry crane cart. According to the technical scheme, a crane supporting leg is included, a mounting frame is mounted at one end of the crane supporting leg, a rotating rod is rotationally mounted in the mounting frame, an audible and visual alarm is mounted on one side of the rotating rod, a side rod is rotationally connected to the other end of the rotating rod, a motor is mounted at one end of a motor frame, and a transmission shaft is rotationally connected with the side rod through a connecting rod; infrared human body sensors are mounted at the front ends of the mounting rack and the bottom box, and a water pump is mounted on one side of the water tank. According to the utility model, the plurality of groups of audible and visual alarms can give out audible and visual early warning at different heights in the moving process of the crane supporting leg, the influence of a strong light environment on light given out by the audible and visual alarms is reduced, and water is sprayed out towards the front of the crane supporting leg by utilizing the spray head, so that the water at the spraying position can be used for giving an alarm to front personnel; and the use process is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a personnel detection protection alarm device during the walking process of a gantry crane trolley. Background Art

[0002] Gantry crane is a large equipment widely used in various industrial environments. It has the advantages of large lifting capacity and wide operating range. In order to ensure that nearby personnel can get timely warnings and avoid them when the gantry crane moves to prevent accidental injuries, a warning device is needed. Traditional gantry crane trolleys mostly use sound and light alarm equipment installed on the top of the gantry crane for early warning when moving. However, this alarm method cannot play a good early warning role when personnel are in strong light and noisy environments. Therefore, it is necessary to design a personnel detection and protection alarm device during the movement of the gantry crane trolley. Utility Model Content

[0003] The purpose of the utility model is to provide a personnel detection protection alarm device during the travel of a gantry crane trolley, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a personnel detection protection alarm device during the walking process of a gantry crane trolley, comprising a crane leg, a mounting frame is installed at one end of the crane leg, a rotating rod is rotatably installed inside the mounting frame, a sound and light alarm is installed on one side of the rotating rod, the other end of the rotating rod is rotatably connected to a side rod, a motor frame is installed at one end of the crane leg at the bottom of the mounting frame, a motor is installed at one end of the motor frame, a transmission shaft is installed at the other end of the motor, and the transmission shaft is rotatably connected to the side rod through a connecting rod;

[0005] A bottom box is installed at the bottom of one end of the crane leg, and infrared human body sensors are installed at the front ends of the mounting frame and the bottom box. A water tank is installed inside the bottom box, a water pump is installed on one side of the water tank, and a control module is installed on the top of the water pump. An end cover is detachably installed on the top of the bottom box, and nozzles are installed on both sides of the top of the end cover. The infrared human body sensor, the water pump and the control module are electrically connected through wires.

[0006] Preferably, a mounting seat is installed on the side of the mounting frame, the mounting seat is connected to the crane leg via a mounting bolt, and a mounting hole adapted to the rotating rod is opened inside the mounting frame.

[0007] Preferably, bolts are slidably mounted inside the motor frame on one side of the motor, and screw holes matching the bolts are provided on the surface of the crane legs.

[0008] Preferably, a limit seat is provided on the periphery of the nozzle, and the bottom of the limit seat is connected to the end cover.

[0009] Preferably, a water supply pipe is installed on the top of the end cover, and a water inlet matched with the water supply pipe is opened on the top of the water tank.

[0010] Preferably, the transmission shaft is rotationally connected to the motor frame, the end of the transmission shaft is a polygonal column, a hole matching the transmission shaft is provided inside the connecting rod, and the connecting rod rotates with the side rod.

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

[0012] 1. Through multiple sets of sound and light alarms, sound and light warnings can be issued at different heights during the movement of the crane legs, reducing the impact of strong light environment on the light emitted by the sound and light alarm. When the infrared human body sensor detects the presence of a person in front of the crane legs, water is sprayed in front of the crane legs using a nozzle, so that the water at the spraying point can be used to alarm the person in front, avoiding the impact of noisy environment on the sound emitted by the sound and light alarm.

[0013] 2. By installing structures such as a rotating rod, a mounting frame and a side rod, the position of the sound and light alarm can be adjusted during use under the drive of a motor and a connecting rod. After extending multiple sets of sound and light alarms from the side of the crane leg 1, the sound and light emitted by the sound and light alarms can be better transmitted. After retracting the sound and light alarms, the sound and light alarms can be protected while reducing the space occupied by the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a partial cross-sectional view of the bottom box of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the mounting frame and the side rod of the utility model;

[0017] Figure 4 It is a rear view of the mounting frame and side rods of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the mounting frame of the utility model;

[0019] Figure 6 It is a rear view of the side rod and the rotating rod of the utility model.

[0020] In the figure: 1. Crane legs; 2. Mounting frame; 3. Mounting seat; 4. Mounting hole; 5. Mounting bolt; 6. Rotating rod; 7. Sound and light alarm; 8. Side rod; 9. Motor frame; 10. Connecting rod; 11. Motor; 12. Transmission shaft; 13. Bolt; 14. Infrared human body sensor; 15. Bottom box; 16. End cover; 17. Water pipe; 18. Water tank; 19. Water pump; 20. Control module; 21. Sprinkler; 22. Limit seat. DETAILED DESCRIPTION

[0021] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0022] The personnel detection protection alarm device for the gantry crane trolley during the travel process proposed by the utility model is exemplified as follows: Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a crane leg 1 is provided with a mounting frame 2 at one end of the crane leg 1, wherein the mounting frame 2 is installed at the same position as the direction in which the crane trolley moves forward or backward, a rotating rod 6 is rotatably installed inside the mounting frame 2, and a sound and light alarm 7 is installed on one side of the rotating rod 6, wherein the rotating rod 6 and the sound and light alarm 7 are provided with multiple groups, and the distance between each group can meet the rotation recovery of the rotating rod 6 and the sound and light alarm 7, and the front and rear ends of the sound and light alarm 7 are both connected with an alarm function; the other end of the rotating rod 6 is rotatably connected with a side rod 8, a motor frame 9 is installed at one end of the crane leg 1 at the bottom of the mounting frame 2, a motor 11 is installed at one end of the motor frame 9, and a transmission shaft 12 is installed at the other end of the motor 11, and the transmission shaft 12 is rotatably connected to the side rod 8 through a connecting rod 10, wherein the transmission shaft 12 is rotatably connected to the motor frame 9, the end of the transmission shaft 12 is a polygonal column, and a hole matching the transmission shaft 12 is opened inside the connecting rod 10, and the connecting rod 10 rotates with the side rod 8;

[0023] Specifically, during use, after the sound and light alarm 7 is powered on, it can emit a sound and light warning during the movement of the crane leg 1. The sound and light alarm 7 can be pushed out from the side of the crane leg 1 by the rotating rod 6, so that the sound and light emitted by the sound and light alarm 7 can be better transmitted, so as to warn people at different heights and positions. When the crane leg 1 is in a stationary state and does not need to be moved, the motor 11 is powered on and uses the transmission shaft 12 to drive the connecting rod 10 to rotate 90 degrees counterclockwise. During the rotation of the connecting rod 10, the side rod 8 can be pulled to move simultaneously with the transmission shaft 12 as the axis. When the side rod 8 moves, it drives the rotating rod 6 to rotate counterclockwise on the mounting frame 2, so that the sound and light alarm 7 can be retracted by the rotating rod 6 to reduce the space occupied by the entire device. When a warning is needed, the motor 11 can rotate 90 degrees clockwise, and the sound and light alarm 7 can be turned out again for warning through the connecting rod 10, the side rod 8 and the rotating rod 6.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, a bottom box 15 is installed at the bottom of one end of the crane leg 1, and an infrared human body sensor 14 is installed at the front end of the mounting frame 2 and the bottom box 15. A water tank 18 is installed inside the bottom box 15, and a water pump 19 is installed on one side of the water tank 18. A control module 20 is installed on the top of the water pump 19. An end cover 16 is detachably installed on the top of the bottom box 15, and nozzles 21 are installed on both sides of the top of the end cover 16, wherein a limiting seat 22 is set on the periphery of the nozzle 21, and the bottom of the limiting seat 22 is connected to the end cover 16, wherein the bottom of the limiting seat 22 is a magnetic structure, which is adsorbed on the top of the end cover 16, and the direction of the nozzle 21 spraying can be adjusted by changing the position of the limiting seat 22 on the end cover 16; a water supply pipe 17 is installed on the top of the end cover 16, and a water inlet compatible with the water supply pipe 17 is opened on the top of the water tank 18; wherein, the infrared human body sensor 14 and the water pump 19 is electrically connected to the control module 20 through a wire; specifically, the forward direction of the crane leg 1 can be detected by the infrared human body sensor 14 distributed at the front end of the mounting frame 2 and the bottom box 15, and the detected data is transmitted to the inside of the control module 20 for analysis and processing. When the infrared human body sensor 14 detects that there is a person in front of the crane leg 1, the control module 20 controls the water pump 19 to start running. After the water pump 19 is powered on, the water stored in the water tank 18 is transmitted to the inside of the nozzle 21, and the nozzle 21 is used to spray water in front of the crane leg 1, so that the water at the spraying point can be used to alarm the person in front. When the person evacuates the range detected by the infrared human body sensor 14, the control module 20 stops the operation of the water pump 19 and stops spraying water. The water adding pipe 17 can be used to facilitate the user to add water to the inside of the water tank 18;

[0025] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, a mounting seat 3 is installed on the side of the mounting frame 2, and the mounting seat 3 is connected to the crane leg 1 through a mounting bolt 5. A mounting hole 4 compatible with the rotating rod 6 is opened inside the mounting frame 2, wherein the two mounting seats 3 are respectively located at the top and bottom of the side of the mounting frame 2; a bolt 13 is slidably installed inside the motor frame 9 on one side of the motor 11, and a screw hole compatible with the bolt 13 is opened on the surface of the crane leg 1; specifically, the position of the mounting frame 2 can be limited by connecting the mounting seat 3 with the crane leg 1 through the mounting bolt 5, and the mounting hole 4 opened on the mounting frame 2 can provide a movable space for the rotating rod 6 to facilitate the rotation adjustment of the rotating rod 6, and the stability of the motor 11 can be increased by connecting the motor frame 9 with the crane leg 1 by the bolt 13.

[0026] The working principle of this embodiment is as follows: before use, the mounting frame 2, the motor frame 9 and the bottom box 15 are mounted on the surface of the crane leg 1 in the forward direction. The motor 11 can rotate 90 degrees clockwise to turn out the sound and light alarm 7 through the connecting rod 10, the side rod 8 and the rotating rod 6. After the sound and light alarm 7 is powered on, it can send out a sound and light warning during the movement of the crane leg 1. Under the warning of the sound and light alarm 7, when the infrared human body sensor 14 detects that there is a person in front of the crane leg 1, the control module 20 controls the water pump 19 to start running. After the water pump 19 is powered on, the water stored in the water tank 18 is transferred to the inside of the nozzle 21, and the nozzle 21 is used to spray water to the crane leg 1. Water is sprayed out in front of the outrigger 1, so that the water at the spraying point can be used to alarm the personnel in front. When the personnel evacuate the detection range of the infrared human body sensor 14, the control module 20 stops the operation of the water pump 19 and stops spraying water. When the crane outrigger 1 is in a stationary state and does not need to be moved, the motor 11 is energized and uses the transmission shaft 12 to drive the connecting rod 10 to rotate 90 degrees counterclockwise. During the rotation of the connecting rod 10, the side rod 8 can be pulled to move simultaneously with the transmission shaft 12 as the axis. When the side rod 8 moves, it drives the rotating rod 6 to rotate counterclockwise on the mounting frame 2, so that the rotating rod 6 can be used to retract the sound and light alarm 7, thereby reducing the space occupied by the entire device.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A personnel detection and protection alarm device for a gantry crane during its travel, characterized in that: The invention comprises a crane leg (1), wherein a mounting frame (2) is mounted on one end of the crane leg (1), a rotating rod (6) is rotatably mounted inside the mounting frame (2), a sound and light alarm (7) is mounted on one side of the rotating rod (6), the other end of the rotating rod (6) is rotatably connected to a side rod (8), a motor frame (9) is mounted on one end of the crane leg (1) at the bottom of the mounting frame (2), a motor (11) is mounted on one end of the motor frame (9), a transmission shaft (12) is mounted on the other end of the motor (11), and the transmission shaft (12) is rotatably connected to the side rod (8) via a connecting rod (10); A bottom box (15) is installed at the bottom of one end of the crane leg (1), an infrared human body sensor (14) is installed at the front end of the mounting frame (2) and the bottom box (15), a water tank (18) is installed inside the bottom box (15), a water pump (19) is installed on one side of the water tank (18), a control module (20) is installed on the top of the water pump (19), an end cover (16) is detachably installed on the top of the bottom box (15), nozzles (21) are installed on both sides of the top of the end cover (16), and the infrared human body sensor (14) and the water pump (19) are electrically connected to the control module (20) through a wire.

2. The personnel detection protection alarm device during the movement of the gantry crane trolley according to claim 1 is characterized in that: A mounting seat (3) is installed on the side of the mounting frame (2); the mounting seat (3) is connected to the crane leg (1) via a mounting bolt (5); and a mounting hole (4) adapted to the rotating rod (6) is provided inside the mounting frame (2).

3. The personnel detection protection alarm device during the travel of the gantry crane according to claim 1 is characterized in that: A bolt (13) is slidably mounted inside the motor frame (9) on one side of the motor (11), and a screw hole matching the bolt (13) is provided on the surface of the crane leg (1).

4. The personnel detection protection alarm device during the travel of the gantry crane according to claim 1 is characterized in that: A limiting seat (22) is mounted on the periphery of the nozzle (21), and the bottom of the limiting seat (22) is connected to the end cover (16).

5. The personnel detection protection alarm device during the travel of the gantry crane according to claim 4 is characterized in that: A water supply pipe (17) is installed on the top of the end cover (16), and a water inlet matched with the water supply pipe (17) is opened on the top of the water tank (18).

6. The personnel detection protection alarm device for the gantry crane during its travel according to any one of claims 1 to 5, characterized in that: The transmission shaft (12) is rotatably connected to the motor frame (9); the end of the transmission shaft (12) is a polygonal column; a hole matching the transmission shaft (12) is provided inside the connecting rod (10); and the connecting rod (10) is rotatable with the side rod (8).

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