Container portal crane with weight detection mechanism
By installing infrared sensors and hydraulic braking systems on the container gantry crane, detecting and emergency braking to avoid the crane movement, the safety accidents caused by field of vision are solved and personnel protection is achieved.
Patent Information
- Application Number
- CN202422306035.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2035-06-05
AI Technical Summary
Because the cab is far from the ground and the view of the front and rear of the crane will be blocked by the gantry, some construction personnel or off-site personnel did not pay attention to the on-site construction conditions. When accidentally approaching the crane's moving track, the driver cannot detect it, resulting in a collision with the personnel during the crane's movement, causing a serious safety accident.
An infrared sensor is installed on the container gantry crane to detect whether there are blockages within fifteen meters ahead of the movement direction. When a person or blockage is detected, the connecting rod and the pressure plate are driven through the hydraulic rod to prevent the crane from continuing to move.
It effectively avoids safety accidents caused by unaware of personnel approaching the crane, and protects personnel safety through emergency braking.
Smart Images
Figure CN223188822U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cranes, in particular to a container gantry crane with a weight detection mechanism. Background Art
[0002] Gantry crane, also known as gantry crane, is a variation of bridge crane. Its structure mainly consists of a large door frame, a small door frame, a lifting mechanism and an electrical control system. It is widely used in industrial and construction occasions such as steel, shipbuilding, ports, logistics, etc.
[0003] When using a gantry crane, the driver controls the boom of the crane to move up and down to lift the container, and then controls the entire crane to move via the moving wheels. Since the cab is far from the ground and the view in front and behind the crane is blocked by the gantry, some construction workers or off-site personnel fail to pay attention to the on-site construction conditions and accidentally approach the crane's moving track without the driver noticing, which may cause the crane to hit people during movement and cause serious safety accidents. Utility Model Content
[0004] The technical problem to be solved by the present invention is that, since the cab is far from the ground and the vision in front and behind the crane is blocked by the crane's gantry, some construction workers or off-site personnel do not pay attention to the on-site construction conditions and accidentally approach the moving track of the crane without the driver noticing, which may cause the crane to hit people during movement, resulting in serious safety accidents.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a container gantry crane with a weight detection mechanism, including a gantry, a top beam is slidably provided at the top of the gantry, a cab is provided on one side of the top beam, a steel rope is provided at the bottom end of the top beam, a hook is provided at the bottom end of the steel rope, a weight detection module is provided on the surface of the hook, brackets are fixedly connected to both sides of the gantry, two groups of moving devices are provided at the bottom end of the bracket, the moving device includes a support rod, the top end of the support rod is fixedly connected to the bottom end of the bracket, and the bottom end of the support rod is fixedly connected to the bottom end of the bracket. It is fixedly connected to a shell, a driving device is provided on one side of the shell, the inner wall of the shell is rotatably connected to a number of moving wheels, the outer surface of the shell is provided with a braking device, the braking device includes two connecting rods, the bottom ends of the two connecting rods are fixedly connected to pressure plates, rectangular grooves are provided on both sides of the support rod, a hydraulic rod is provided inside the rectangular groove, the output rod of the hydraulic rod is fixedly connected to one side of the connecting rod, sliding grooves are provided on both sides of the shell, the outer surfaces of the two pressure plates slide on the inner walls of the sliding grooves respectively, and two infrared sensors are provided on both sides of the support rod.
[0006] The effect achieved by the above components is: by setting up infrared sensors, after using a crane to lift the container, when the position of the gantry is moved by the moving device, the infrared sensors on the surface of the support rods on both sides of the bottom end of the bracket will detect whether there are obstacles within fifteen meters in the direction of movement. When the infrared sensor detects that there are people or obstacles within a range of fifteen meters, it will control the operation of the two hydraulic rods inside the rectangular groove on the outer surface of the support rod through the control panel inside the cab, so that the hydraulic rods will contract and drive the connecting rod and the pressure plate to move, and the pressure plate will be controlled to slide on the inner wall of the slide groove to press one end against the surface of the moving wheel, and the moving device will be emergency braked to avoid the crane from continuing to move and causing personal injury as much as possible.
[0007] Preferably, one end of the pressing plate is fixedly connected to a plurality of anti-slip strips, and the anti-slip strips are made of rubber material.
[0008] The effect achieved by the above components is that the side of the pressure plate provided with the rubber anti-slip strip is pressed tightly against the outer surface of the moving wheel, which has a better braking effect on the moving wheel and is not easy to slide.
[0009] Preferably, the output rod of the hydraulic rod is fixedly connected to two inclined blocks, and one end of the two inclined blocks away from the output rod of the hydraulic rod is fixedly connected to one side of the connecting rod.
[0010] The effect achieved by the above components is: by providing the inclined block, the connection between the connecting rod and the output end of the hydraulic rod can be reinforced, thereby improving the structural stability of the hydraulic rod and the connecting rod.
[0011] Preferably, the top end of the connecting rod is fixedly connected to two positioning plates, and one side of the two positioning plates slides on both sides of the top end of the shell respectively.
[0012] The effect achieved by the above components is: when the hydraulic rod operates to drive the connecting rod to control the movement of the pressure plate, one side of the two positioning plates will slide on the outer surface of the shell, further limiting the angle between the connecting rod and the pressure plate and the shell, and avoiding the angle of the connecting rod and the pressure plate from deflection as much as possible.
[0013] Preferably, a protective device is provided on the outer surface of the support rod, and the protective device includes a protective frame, a plurality of plug rods are fixedly connected to one side of the protective frame, a plurality of rectangular rods are fixedly connected to one side of the protective frame, and a plurality of slots are opened on the outer surface of the support rod close to the infrared sensor.
[0014] The effect achieved by the above components is: before using the crane, you can insert each plug-in rod at one end of a protective frame into the slot on the outer surface of each support rod at the infrared sensor on the outer surface of each support rod, push the plug-in rod completely inside the slot and install the protective frame on one side of the infrared sensor. The outer side of the infrared sensor is protected by the protective frame and the rectangular rod to avoid the infrared sensor from being damaged by collision as much as possible.
[0015] Preferably, the inner wall of the protective frame is rotatably connected to two rotating shafts, and the outer surface of the rotating shaft is fixedly connected to a plurality of blades.
[0016] The effect achieved by the above components is: when the crane is moving, if flying objects such as paper pieces and plastic bags stick to one side of the protective frame and block one side of the infrared sensor, the air enters the protective frame through both sides of the protective frame and blows the blades on the outer surface of the rotating shaft inside the protective frame to rotate, driving the rotating shaft and the blades on the outer surface of the protective frame to rotate, and scraping away the debris stuck to the surface of the protective frame.
[0017] Preferably, the outer surface of the protective frame is provided with two grooves, and the two grooves are respectively located on two sides of the protective frame.
[0018] The effect achieved by the above components is that the protective frame can be more conveniently grasped and disassembled by pinching the grooves on both sides of the protective frame.
[0019] Preferably, a plurality of convex strips are fixedly connected to the outer surface of the insertion rod, and the convex strips are linearly distributed on the outer surface of the insertion rod, and the convex strips are made of rubber material.
[0020] The effect achieved by the above components is that when the rod is inserted into the slot, the convex strips can increase the friction between the outer surface of the rod and the inner wall of the slot, making it difficult for the rod to accidentally slip out of the slot.
[0021] The beneficial effects of the utility model are:
[0022] The braking device of the utility model can detect whether there are people or obstacles within a range of fifteen meters through an infrared sensor. When someone is on the moving track of the crane, the hydraulic rod is operated to contract to drive the connecting rod and the pressure plate to move, and one end of the pressure plate is pressed against the surface of the moving wheel, thereby performing emergency braking on the moving device, thereby preventing the crane from continuing to move and causing personal injury as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the support rod of the utility model;
[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the housing of the utility model;
[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the pressing plate of the utility model;
[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the protective frame of the utility model.
[0029] Legend: 1. Mast; 2. Braking device; 3. Protective device; 4. Top beam; 5. Cab; 6. Steel rope; 7. Hook; 8. Bracket; 9. Moving device; 21. Rectangular groove; 22. Hydraulic rod; 23. Connecting rod; 24. Pressure plate; 25. Slide groove; 26. Anti-slip strip; 27. Infrared sensor; 28. Bevel block; 29. Positioning plate; 31. Slot; 32. Insert rod; 33. Protective frame; 34. Rectangular rod; 35. Rotating shaft; 36. Paddle; 37. Groove; 38. Raised strip; 91. Support rod; 92. Shell; 93. Moving wheel; 94. Driving device. DETAILED DESCRIPTION
[0030] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0031] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0032] Example 1, Figure 1 A container gantry crane with a weight detection mechanism shown in FIG. 1 includes a gantry 1, which is characterized in that: a top beam 4 is slidingly provided at the top of the gantry 1, a cab 5 is provided on one side of the top beam 4, a steel rope 6 is provided at the bottom end of the top beam 4, a hook 7 is provided at the bottom end of the steel rope 6, a weight detection module is provided on the surface of the hook 7, brackets 8 are fixedly connected to both sides of the gantry 1, two groups of moving devices 9 are provided at the bottom end of the bracket 8, the moving device 9 includes a support rod 91, the top end of the support rod 91 is fixedly connected to the bottom end of the bracket 8, the bottom end of the support rod 91 is fixedly connected to a shell 92, a driving device 94 is provided on one side of the shell 92, a plurality of moving wheels 93 are rotatably connected to the inner wall of the shell 92, a braking device 2 is provided on the outer surface of the shell 92, and a protective device 3 is provided on the outer surface of the support rod 91.
[0033] Figure 1-4The braking device 2 shown includes two connecting rods 23, the bottom ends of the two connecting rods 23 are fixedly connected with pressure plates 24, rectangular grooves 21 are provided on both sides of the support rod 91, a hydraulic rod 22 is provided inside the rectangular groove 21, the output rod of the hydraulic rod 22 is fixedly connected to one side of the connecting rod 23, and a slide groove 25 is provided on both sides of the shell 92. The outer surfaces of the two pressure plates 24 slide on the inner walls of the slide groove 25 respectively. Two infrared sensors 27 are provided on both sides of the support rod 91. By setting the infrared sensors 27, after the container is lifted by a crane, when the position of the gantry 1 is moved by the moving device 9, the support rod 91 is The infrared sensors 27 on the surface of the support rods 91 on both sides of the bottom end of the frame 8 will detect whether there are any obstacles within fifteen meters in the direction of movement. When the infrared sensor 27 detects that there are people or obstacles within fifteen meters, the two hydraulic rods 22 inside the rectangular groove 21 on the outer surface of the support rod 91 will be controlled through the control panel inside the cab 5 to operate, so that the hydraulic rods 22 will contract and drive the connecting rod 23 and the pressure plate 24 to move, and the pressure plate 24 will be controlled to slide on the inner wall of the slide groove 25 to press one end against the surface of the moving wheel 93, and the mobile device 9 will be emergency braked to avoid the crane from continuing to move and causing personal injury as much as possible.
[0034] Figure 2-4 One end of the pressure plate 24 shown is fixedly connected to a number of anti-slip strips 26, which are made of rubber material. The side of the pressure plate 24 provided with the rubber anti-slip strip 26 is pressed against the outer surface of the moving wheel 93, which has a better braking effect on the moving wheel 93 and is not easy to slide. The output rod of the hydraulic rod 22 is fixedly connected to two inclined blocks 28, and the two inclined blocks 28 are fixedly connected to one side of the connecting rod 23 at one end away from the output rod of the hydraulic rod 22. By providing the inclined blocks 28, the connection between the connecting rod 23 and the output end of the hydraulic rod 22 can be reinforced, thereby improving the structural stability of the hydraulic rod 22 and the connecting rod 23.
[0035] Figure 2-4 The top of the connecting rod 23 shown is fixedly connected to two positioning plates 29, and one side of the two positioning plates 29 slides on both sides of the top of the shell 92 respectively. When the hydraulic rod 22 operates to drive the connecting rod 23 to control the movement of the pressure plate 24, one side of the two positioning plates 29 will slide on the outer surface of the shell 92, further limiting the angle between the connecting rod 23 and the pressure plate 24 and the shell 92, and avoiding the angle of the connecting rod 23 and the pressure plate 24 from being deflected as much as possible.
[0036] Figure 1 、 Figure 3 and Figure 5The protective device 3 shown includes a protective frame 33, one side of which is fixedly connected to a plurality of insertion rods 32, one side of which is fixedly connected to a plurality of rectangular rods 34, and an outer surface of the support rod 91 close to the infrared sensor 27 is provided with a plurality of slots 31. Before using the crane, each insertion rod 32 at one end of a protective frame 33 can be inserted into the slot 31 on the outer surface of the support rod 91 at the infrared sensor 27 on the outer surface of each support rod 91, and the insertion rod 32 is pushed completely into the slot 31 to install the protective frame 33 on one side of the infrared sensor 27. The outer side of the infrared sensor 27 is protected by the protective frame 33 and the rectangular rods 34 to avoid the infrared sensor 27 from being damaged by collision as much as possible.
[0037] Figure 3 and Figure 5 The inner wall of the protective frame 33 shown is rotatably connected to two rotating shafts 35, and the outer surface of the rotating shaft 35 is fixedly connected to a plurality of blades 36. When the crane moves, if flying objects such as paper scraps and plastic bags stick to one side of the protective frame 33 and block one side of the infrared sensor 27, air enters the protective frame 33 through both sides of the protective frame 33 and blows the blades 36 on the outer surface of the rotating shaft 35 inside the protective frame 33 to rotate, driving the rotating shaft 35 and the blades 36 on the outer surface of the protective frame 33 to rotate, scraping away the debris stuck to the surface of the protective frame 33, and the outer surface of the protective frame 33 opens. There are two grooves 37, which are located on both sides of the protective frame 33 respectively. The protective frame 33 can be more conveniently grasped and disassembled by pinching the grooves 37 on both sides of the protective frame 33. The outer surface of the insertion rod 32 is fixedly connected with a plurality of ridges 38. The ridges 38 are linearly distributed on the outer surface of the insertion rod 32. The ridges 38 are made of rubber material. When the insertion rod 32 is inserted into the slot 31, the ridges 38 can increase the friction between the outer surface of the insertion rod 32 and the inner wall of the slot 31, so that the insertion rod 32 is not easy to accidentally slip out of the inside of the slot 31.
[0038] Working principle: When using a crane to lift a container, the driver climbs onto the cab 5 and controls the gantry 1 to move to a position through the moving device 9 at the bottom of the bracket 8. Then, the control device in the cab 5 controls the top beam 4 to slide and adjust the position at the top of the gantry 1. Then, the steel rope 6 is released to lower the hook 7. The sling is hung on the hook 7. The weight of the sling transmitted by the sensor on the hook 7 is observed and recorded. Then, at the infrared sensor 27 on one side of each shell 92, each insertion rod 32 at one end of a protective frame 33 is inserted into the slot 31 on the outer surface of the support rod 91. The insertion rod 32 is pushed completely inside the slot 31 to install the protective frame 33 on one side of the infrared sensor 27. The outer side of the infrared sensor 27 is protected by the protective frame 33 and the rectangular rod 34. Then, the gantry 1 and the sling are controlled to move to the top of the container through the moving device 9. , lift the container with the sling, and after lifting the container, observe the weight of the container transmitted by the sensor at the hook through the display panel inside the cab 5, and then move the position through the moving device 9. When the position of the gantry 1 is moved by the moving device 9, the infrared sensors 27 on the surface of the support rods 91 on both sides of the bottom end of the bracket 8 will detect whether there are obstacles within fifteen meters in the direction of movement. When the infrared sensor 27 detects that there are people or obstacles within fifteen meters, the two hydraulic rods 22 inside the rectangular groove 21 on the outer surface of the support rod 91 will be controlled through the control panel inside the cab 5 to operate, so that the hydraulic rod 22 contracts to drive the connecting rod 23 and the pressure plate 24 to move, and the pressure plate 24 is controlled to slide on the inner wall of the slide groove 25 to press one end against the surface of the moving wheel 93, and the moving device 9 is emergency braked to avoid personal injury caused by the continued movement of the crane as much as possible.
[0039] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. A container gantry crane with a weight detection mechanism, comprising a gantry (1), characterized in that: The top end of the door frame (1) is provided with a top beam (4) for sliding, a cab (5) is provided on one side of the top beam (4), a steel rope (6) is provided at the bottom end of the steel rope (6), a hook (7) is provided at the bottom end of the hook (7), a weight detection module is provided on the surface of the hook (7), brackets (8) are fixedly connected to both sides of the door frame (1), two groups of moving devices (9) are provided at the bottom end of the bracket (8), the moving device (9) includes a support rod (91), the top end of the support rod (91) is fixedly connected to the bottom end of the bracket (8), the bottom end of the support rod (91) is fixedly connected to a shell (92), a driving device (94) is provided on one side of the shell (92), and the shell (9 2) is rotatably connected to a plurality of moving wheels (93), the outer surface of the shell (92) is provided with a braking device (2), the braking device (2) includes two connecting rods (23), the bottom ends of the two connecting rods (23) are respectively fixedly connected with a pressure plate (24), rectangular grooves (21) are provided on both sides of the support rod (91), a hydraulic rod (22) is provided inside the rectangular groove (21), the output rod of the hydraulic rod (22) is fixedly connected to one side of the connecting rod (23), sliding grooves (25) are provided on both sides of the shell (92), the outer surfaces of the two pressure plates (24) slide on the inner wall of the sliding groove (25), and two infrared sensors (27) are provided on both sides of the support rod (91).
2. A container gantry crane with a weight detection mechanism according to claim 1, characterized in that: One end of the pressing plate (24) is fixedly connected to a plurality of anti-slip strips (26).
3. The container gantry crane with a weight detection mechanism according to claim 2, characterized in that: The output rod of the hydraulic rod (22) is fixedly connected to two inclined blocks (28), and one end of the two inclined blocks (28) away from the output rod of the hydraulic rod (22) is fixedly connected to one side of the connecting rod (23).
4. The container gantry crane with a weight detection mechanism according to claim 3, characterized in that: The top end of the connecting rod (23) is fixedly connected to two positioning plates (29), and one side of the two positioning plates (29) slides on both sides of the top end of the shell (92) respectively.
5. The container gantry crane with a weight detection mechanism according to claim 4, characterized in that: The outer surface of the support rod (91) is provided with a protective device (3), and the protective device (3) includes a protective frame (33), one side of the protective frame (33) is fixedly connected to a plurality of plug rods (32), one side of the protective frame (33) is fixedly connected to a plurality of rectangular rods (34), and the outer surface of the support rod (91) is provided with a plurality of slots (31) on a side close to the infrared sensor (27).
6. The container gantry crane with a weight detection mechanism according to claim 5, characterized in that: The inner wall of the protection frame (33) is rotatably connected to two rotating shafts (35), and the outer surface of the rotating shaft (35) is fixedly connected to a plurality of blades (36).
7. The container gantry crane with a weight detection mechanism according to claim 6, characterized in that: Two grooves (37) are formed on the outer surface of the protection frame (33), and the two grooves (37) are respectively located on two sides of the protection frame (33).
8. The container gantry crane with a weight detection mechanism according to claim 7, characterized in that: A plurality of convex strips (38) are fixedly connected to the outer surface of the insertion rod (32), and the convex strips (38) are linearly distributed on the outer surface of the insertion rod (32).