A device for monitoring the load of a spreader leg of a spreader

Abstract

The utility model relates to the technical field of automobile crane supporting leg, disclose a kind of automobile crane supporting leg load monitoring device, detachably installed below automobile crane supporting leg, including bottom support, load monitoring module, pressboard and cover plate, wherein, the bottom support inside hollow formation accommodating space and top have open mouth, the inner bottom surface of the bottom support is provided with positioning key, the inner bottom surface of the bottom support is also provided with drainage hole for drainage;The load monitoring module is set in the accommodating space, the load monitoring module is used to monitor the load condition of automobile crane supporting leg, and the load monitoring module is provided with the positioning slot corresponding with the positioning key cooperation;The bottom support, load monitoring module, pressboard, cover plate integrated design, assembly is simple, substantially shorten installation time, overall integration degree is high, reduce the dependence on on-site assembly condition, realize fast scene change;Setting drainage hole can drain the accumulated water in accommodating space, avoid the influence of wading on load monitoring module.

Description

Technical Field

[0001] This utility model relates to the field of outrigger technology for truck cranes, and in particular to a load monitoring device for outriggers of truck cranes. Background Technology

[0002] As a highly efficient lifting tool, truck cranes are mainly used for lifting heavy objects at various construction sites. Due to their high flexibility and ease of movement, they have been widely used in modern engineering construction.

[0003] Chinese utility model patent with publication number CN222795030U discloses a load transfer and monitoring device for the outriggers of a truck crane.

[0004] In the above technical solutions, the force transmission path of the outrigger load of the truck crane is changed by supporting the fixed module and the load-bearing module. This requires on-site assembly and positioning, which is time-consuming and highly dependent on the site conditions, making it difficult to quickly relocate the site. Furthermore, the cables in the sensors in the above technical solutions are easily affected by water, making maintenance inconvenient. Utility Model Content

[0005] To overcome at least one of the defects described in the prior art, this utility model provides a truck crane outrigger load monitoring device. The device integrates the base, load monitoring module, pressure plate, and cover plate into a single design, simplifying assembly, significantly reducing installation time, and offering high overall integration. This reduces reliance on on-site assembly conditions and enables rapid site relocation. Drainage holes allow for the removal of accumulated water from the storage space, preventing water from affecting the load monitoring module.

[0006] The technical solution of this utility model is implemented as follows: A truck crane outrigger load monitoring device is detachably installed under the truck crane outrigger, comprising a base, a load monitoring module, a pressure plate, and a cover plate. The base is hollow, forming an accommodating space with an open top. A positioning key and a drainage hole are provided on the inner bottom surface of the base. The load monitoring module is disposed within the accommodating space and is used to monitor the load on the truck crane outrigger. The load monitoring module has a positioning groove that corresponds to the positioning key. The pressure plate covers the open top of the base, shielding the accommodating space, and connects to the base plate of the truck crane outrigger. The cover plate covers the top wall of the base and presses down on the base plate of the truck crane outrigger against the pressure plate. The cover plate is detachably connected to the base.

[0007] Based on the above technical solutions, preferably, a power supply module is also included, which is used to provide power to the load monitoring module. The power supply module is located within the accommodating space and is in contact with the outer surface of the load monitoring module.

[0008] Based on the above technical solutions, preferably, a signal transmission module is also included. The power supply module is used to provide power to the signal transmission module. The signal transmission module is located within the accommodating space and is in contact with the outer surface of the load monitoring module. The signal transmission module is electrically connected to the load monitoring module. The signal transmission module is used to collect and transmit the load status of the truck crane outriggers.

[0009] Based on the above technical solutions, preferably, the inner bottom surface of the base is also provided with a first positioning hole, and the load monitoring module is also provided with a second positioning hole. The first positioning hole and the second positioning hole are correspondingly matched, and a first fastener is inserted into the first positioning hole and the second positioning hole.

[0010] Based on the above technical solutions, preferably, the base is provided with a first mounting hole along its top wall circumferentially, and the cover plate is provided with a second mounting hole corresponding to and cooperating with the first mounting hole, and a second fastener is inserted into the first mounting hole and the second mounting hole.

[0011] Based on the above technical solutions, preferably, the pressure plate includes a buffer layer and a load-bearing layer arranged longitudinally, the buffer layer is connected to the base plate of the truck crane outrigger, and the load-bearing layer is in contact with the load monitoring module.

[0012] Based on the above technical solutions, preferably, the buffer layer, the load-bearing layer and the bottom plate of the truck crane outrigger have the same cross-sectional area.

[0013] Based on the above technical solutions, preferably, the side of the base is also provided with a cable outlet hole for the cable to pass through.

[0014] Based on the above technical solutions, preferably, the cover plate is provided with a clearance groove for avoiding the outriggers of the truck crane.

[0015] In summary, the truck crane outrigger load monitoring device provided by this utility model has the following advantages over the prior art: (1) The integrated structure design of base support, load monitoring module, pressure plate and cover plate is adopted, which makes on-site assembly simple, greatly reduces the dependence on on-site conditions, shortens the installation time, and the overall structure is compact and easy to disassemble quickly. (2) By setting drainage holes, water accumulated in the containment space can be drained in time, avoiding water damage to the internal load monitoring module; by setting cable outlet holes, cables can be stored in an orderly manner, reducing the risk of cables being exposed to the outside and subjected to collisions or water damage. (3) By cooperating with the positioning key and positioning groove, the first positioning hole and the second positioning hole, and fixing with the first fastener, the load monitoring module can be accurately positioned to prevent displacement during use and ensure accurate monitoring data. (4) The buffer layer of the pressure plate can buffer the impact force of the bottom plate of the truck crane outriggers and protect the load monitoring module. The load-bearing layer can stably transmit the load and further improve the monitoring accuracy. At the same time, the power supply module and the signal transmission module are integrated in the housing space, ensuring stable power supply and efficient signal transmission, and ensuring the overall stable operation of the device. (5) The power supply module and signal transmission module are integrated into the bottom support space, eliminating the need for additional installation structure and simplifying the overall structure of the device; the cover plate has a clearance groove, which can effectively avoid the truck crane outriggers, prevent component interference, and ensure the normal operation of the truck crane outriggers; (6) The cover plate and the base can be detachably connected, which facilitates the installation and maintenance of the truck crane outriggers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the base of this utility model embodiment; Figure 3 This is a schematic diagram of the base and load monitoring module according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cover plate according to an embodiment of the present utility model; The meanings of the reference numerals in the attached drawings are as follows: 1. Base support; 11. Accommodation space; 12. Opening; 13. Positioning key; 14. Drainage hole; 15. First mounting hole; 16. First positioning hole; 17. Cable outlet hole; 2. Load monitoring module; 21. Positioning groove; 22. Second positioning hole; 3. Pressure plate; 31. Buffer layer; 32. Bearing layer; 4. Cover plate; 41. Second mounting hole; 42. Clearance groove; 43. Sub-cover plate; 431. Groove; 5. Power supply module; 6. Signal transmission module; 7. Truck crane outrigger; 71. Base plate. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] See Figures 1-4 This utility model discloses a load monitoring device for outriggers of a truck crane, which is detachably installed under the outriggers 7 of the truck crane and includes a base 1, a load monitoring module 2, a pressure plate 3, a cover plate 4, a power supply module 5, and a signal transmission module 6.

[0020] See Figure 1 and Figure 2 As shown, in this embodiment, the base 1 is hollow inside to form a receiving space 11, and has an opening 12 at the top. The base 1 is set in a cylindrical structure. The base 1 serves as the basic support structure of the entire device, providing a receiving space 11 for the load monitoring module 2, the power supply module 5 and the signal transmission module 6, and achieving precise positioning with the load monitoring module 2 through the positioning key 13.

[0021] See Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, a positioning key 13 is provided on the inner bottom surface of the base 1, located at the center of the inner bottom surface of the base 1. The load monitoring module 2 is disposed within the receiving space 11 of the base 1. A positioning groove 21 is provided on the bottom surface of the load monitoring module 2, also located at the center of the load monitoring module 2. The positioning groove 21 and the positioning key 13 are positioned and engaged. Through the positioning engagement of the positioning key 13 and the positioning groove 21, precise positioning and the fixation effect of the load monitoring module 2 are achieved. It should also be noted that a protrusion is provided on the positioning key 13, and a groove corresponding to the protrusion is provided on the positioning groove 21. This design ensures that the positioning groove 21 and the positioning key 13 are positioned and engaged, and no rotation or displacement of position occurs.

[0022] See Figure 1 As shown, in this embodiment, the inner bottom surface of the base 1 is further provided with a first positioning hole 16, and the load monitoring module 2 is further provided with a second positioning hole 22. The first positioning hole 16 and the second positioning hole 22 are correspondingly fitted, and a first fastener is inserted into the first positioning hole 16 and the second positioning hole 22. The first positioning hole 16 and the second positioning hole 22, together with the first fastener, can further improve the firmness between the base 1 and the load monitoring module 2. Specifically, the first fastener is a bolt, and the number of the first positioning hole 16 and the second positioning hole 22 is not specifically limited, as long as the fixing effect can be achieved.

[0023] It should also be noted that in this embodiment, the load monitoring module 2 is used to monitor the load condition of the truck crane outrigger 7. The load monitoring module 2 is a wheel spoke sensor, which has high-precision data acquisition capabilities and can accurately capture minute changes under complex conditions; it is highly adaptable and durable, shock-resistant, and can operate stably in various environments. In other embodiments, the load monitoring module 2 can also be a bearing housing sensor or a resistance strain gauge force sensor, as long as it can realize the pressure monitoring function. The resistance strain gauge force sensor can be an S-shaped sensor or a cylindrical sensor, and no specific limitation is made here.

[0024] In this embodiment, refer to Figure 1 and Figure 2 As shown, the inner bottom surface of the base 1 is provided with multiple drainage holes 14 for drainage. These drainage holes 14 are spaced apart circumferentially along the inner bottom surface of the base 1. When water is inside the base 1, it will flow out from the drainage holes 14, preventing water from accumulating in the base 1 and damaging the load monitoring module 2. Multiple drainage holes 14 can increase drainage efficiency and speed, effectively preventing water from remaining in the base 1 for a long time. It should also be noted that the inner surface of the base 1 is provided with a waterproof layer to ensure the stability of equipment operation.

[0025] See Figure 1 As shown, in this embodiment, the power supply module 5 is used to provide power to the load monitoring module 2. The power supply module 5 is located in the accommodating space 11 and is in contact with the outer surface of the load monitoring module 2. Specifically, the power supply module 5 is a battery composed of multiple splices, and the power supply module 5 has an arc-shaped design to facilitate contact with the outer surface of the load monitoring module 2. Specifically, the power supply module 5 is bonded to the outer surface of the load monitoring module 2, which makes the connection firm and allows for easier overall disassembly.

[0026] See Figure 1 As shown, in this embodiment, the power supply module 5 is used to provide power to the signal transmission module 6. The signal transmission module 6 is electrically connected to the load monitoring module 2. The signal transmission module 6 is located in the accommodating space 11 and is in contact with the outer surface of the load monitoring module 2. The signal transmission module 6 is used to collect the load status of the truck crane outrigger 7 and transmit the signal. Specifically, the signal transmission module 6 is also arc-shaped to facilitate contact with the outer surface of the load monitoring module 2. The signal transmission module 6 is bonded to the outer surface of the load monitoring module 2, which makes the connection firm and allows for easier disassembly.

[0027] See Figure 1As shown, in this embodiment, the signal transmission module 6 and the backend can be transmitted wirelessly or via wired transmission. The side of the base 1 also has a cable outlet hole 17 for cable routing. In the case of wired transmission, the cable can be routed through the outlet hole 17, preventing damage or bending of the cable.

[0028] See Figure 1 As shown, in this embodiment, the pressure plate 3 covers the opening 12 of the base support 1 to shield the receiving space 11. The pressure plate 3 also contacts the load monitoring module 2. The top surface of the pressure plate 3 is connected to the base plate 71 of the truck crane outrigger 7, and the bottom surface of the pressure plate 3 contacts the load monitoring module 2. Specifically, the outer surface of the pressure plate 3 contacts the inner wall surface of the base support 1, ensuring that the receiving space 11 can accommodate the pressure plate 3, and also preventing the base plate 71 of the truck crane outrigger 7 from shaking or slipping.

[0029] Specifically, the pressure plate 3 includes a buffer layer 31 and a load-bearing layer 32 arranged longitudinally. The buffer layer 31 and the load-bearing layer 32 are bonded together. The buffer layer 31 is connected to the base plate 71 of the outrigger 7, specifically, the buffer layer 31 is in contact with the base plate 71 of the outrigger 7. When the outrigger 7 falls, it acts as a buffer to protect the base plate 71. The load-bearing layer 32 is in contact with the load monitoring module 2, specifically with the upper surface of the load monitoring module 2. The buffer layer 31 is made of rubber, which has good elasticity and buffering performance, and can effectively absorb the vibration and impact force generated by the outrigger 7 during operation. The load-bearing layer 32 is made of high-strength steel plate. The load-bearing layer 32 is responsible for accurately transferring the load of the outrigger 7 to the load monitoring module 2, ensuring the authenticity of the monitoring data. Through the design of the buffer layer 31 and the load-bearing layer 32, the functions of buffering and shock absorption and load transfer are realized, effectively improving the adaptability and reliability of the device.

[0030] Among them, see Figure 1 As shown, the base plate 71 of the outrigger 7 is located below the outrigger 7, and the diameter of the base plate 71 is smaller than the diameter of the outrigger 7. Furthermore, the buffer layer 31 and the load-bearing layer 32 have the same cross-sectional area as the base plate 71 of the outrigger 7, and the base plate 71 is also housed within the accommodating space 11. This design allows for integration and facilitates monitoring of the outrigger 7.

[0031] See Figure 1 and Figure 4As shown, the cover plate 4 is placed on the top wall of the base support 1 and presses down on the bottom plate 71 and pressure plate 3 of the truck crane outrigger 7. The cover plate 4 and the base support 1 are detachably connected. Specifically, the base support 1 has a first mounting hole 15 along its top wall circumferentially, and the cover plate 4 has a second mounting hole 41 that corresponds to and mates with the first mounting hole 15. A second fastener, specifically a bolt, passes through the first mounting hole 15 and the second mounting hole 41. By pressing down on the bottom plate 71 and pressure plate 3 of the truck crane outrigger 7, the truck crane outrigger 7 is fixed, ensuring a tight connection of the entire device and facilitating monitoring. Moreover, the cover plate 4 has an avoidance groove 42 for avoiding the truck crane outrigger 7. The design of the avoidance groove 42 allows the cover plate 4 to better adapt to the shape of the truck crane outrigger 7 and avoid interference with the truck crane outrigger 7. More specifically, the cover plate 4 is composed of two semi-circular sub-cover plates 43 spliced ​​together, and each sub-cover plate 43 has a groove 431 in the middle. The two grooves 431 are spliced ​​together to form a clearance groove 42; this makes installation more convenient. A load monitoring module 2 is installed on each outrigger 7 of the truck crane. The cover plate 4 holds the bottom plate 71 of the outrigger 7 and is installed in conjunction with the base support 1 to fix the device on the outrigger 7. This allows the device to move with the outrigger 7, realizing the effect of force monitoring and transmission of the outrigger 7, and preventing the outrigger 7 from overturning due to uneven force or overload.

[0032] Specific implementation steps The load monitoring module 2, power supply module 5, and signal transmission module 6 are placed in the accommodating space 11, and the positioning slot 21 is set to correspond with the positioning key 13, and the first positioning hole 16 is set to correspond with the second positioning hole 22. Bolts are inserted into the first positioning hole 16 and the second positioning hole 22 for fixation. Then, the pressure plate 3 is placed in the accommodating space 11, so that the bearing layer 32 is in contact with the load monitoring module 2, and the bottom plate 71 of the truck crane outrigger 7 is in contact with the buffer layer 31. Then, two sub-cover plates 43 are set above the bottom plate 71 of the truck crane outrigger 7, and the second mounting hole 41 on the cover plate 4 is aligned with the first mounting hole 15 on the base 1 and fixed with bolts to achieve the fixing effect of the truck crane outrigger 7. The load monitoring module 2 monitors the load data of the truck crane outrigger 7 and sends the signal to the signal transmission module 6. The signal transmission module 6 transmits the signal to the backend via wired or wireless means.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A truck crane outrigger load monitoring device, detachably installed below the outrigger (7) of a truck crane, characterized in that, It includes a base (1), a load monitoring module (2), a pressure plate (3), and a cover plate (4), wherein, The base (1) is hollow inside to form a receiving space (11) and has an opening (12) at the top. The inner bottom surface of the base (1) is provided with a positioning key (13), and the inner bottom surface of the base (1) is also provided with a drainage hole (14) for drainage. The load monitoring module (2) is located in the accommodating space (11). The load monitoring module (2) is used to monitor the load of the truck crane outrigger (7). The load monitoring module (2) is provided with a positioning groove (21) that corresponds to and cooperates with the positioning key (13). The pressure plate (3) is placed over the opening (12) of the base (1) to cover the receiving space (11), and the pressure plate (3) is used to connect with the base plate (71) of the truck crane outrigger (7); The cover plate (4) is placed on the top wall of the base (1) and presses down the bottom plate (71) of the truck crane outrigger (7) and the pressure plate (3). The cover plate (4) and the base (1) are detachably connected.

2. The truck crane outrigger load monitoring device according to claim 1, characterized in that, It also includes a power supply module (5), which is used to provide power to the load monitoring module (2). The power supply module (5) is located in the accommodating space (11) and is in contact with the outer surface of the load monitoring module (2).

3. The truck crane outrigger load monitoring device according to claim 2, characterized in that, It also includes a signal transmission module (6), the power supply module (5) is used to provide power to the signal transmission module (6), the signal transmission module (6) is located in the accommodating space (11) and is in contact with the outer surface of the load monitoring module (2), the signal transmission module (6) is electrically connected to the load monitoring module (2), and the signal transmission module (6) is used to collect and transmit the load status of the truck crane outrigger (7).

4. The truck crane outrigger load monitoring device according to claim 1, characterized in that, The bottom surface of the base (1) is also provided with a first positioning hole (16), and the load monitoring module (2) is also provided with a second positioning hole (22). The first positioning hole (16) and the second positioning hole (22) are correspondingly matched, and a first fastener is inserted into the first positioning hole (16) and the second positioning hole (22).

5. The truck crane outrigger load monitoring device according to claim 1, characterized in that, The base (1) is provided with a first mounting hole (15) along its top wall circumferentially, and the cover plate (4) is provided with a second mounting hole (41) that corresponds to and cooperates with the first mounting hole (15). A second fastener is inserted into the first mounting hole (15) and the second mounting hole (41).

6. The truck crane outrigger load monitoring device according to claim 1, characterized in that, The pressure plate (3) includes a buffer layer (31) and a load-bearing layer (32) arranged longitudinally. The buffer layer (31) is connected to the base plate (71) of the truck crane outrigger (7), and the load-bearing layer (32) is in contact with the load monitoring module (2).

7. The truck crane outrigger load monitoring device according to claim 6, characterized in that, The buffer layer (31), the bearing layer (32), and the base plate (71) of the truck crane outrigger (7) have the same cross-sectional area.

8. The truck crane outrigger load monitoring device according to claim 1, characterized in that, The side of the base (1) is also provided with a cable outlet hole (17) for the cable to pass through.

9. The truck crane outrigger load monitoring device according to claim 1, characterized in that, The cover plate (4) is provided with a clearance groove (42) for avoiding the outriggers (7) of the truck crane.

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