Tower crane bolt pre-tightening force monitoring device based on Internet of Things

Abstract

The utility model provides a tower crane bolt pre-tightening force monitoring device based on Internet of Things, which relates to the technical field of tower crane bolt pre-tightening force monitoring, and comprises a bracket connected to a fastened part which is a part connected by a tower crane bolt; the ultrasonic probe is connected to the bracket; the data transmission module is electrically connected with the ultrasonic probe and is used for transmitting corresponding detection data to the processing module; the power supply is used for supplying power to the data transmission module and the ultrasonic probe; and the distance adjusting mechanism is used for adjusting the distance between the ultrasonic probe and the bracket, so that the ultrasonic probe can be in contact with the tower crane bolt. The pre-tightening force of the tower crane bolt is monitored through the ultrasonic detection technology, monitoring data are transmitted to the processing module through the Internet of Things technology for data analysis and processing, the loosening state of the tower crane bolt can be judged conveniently, early warning is given out in time, and therefore accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane bolt pre-tightening force monitoring, in particular to a tower crane bolt pre-tightening force monitoring device based on the Internet of Things. Background Art

[0002] IoT technology has been widely applied in various fields. The IoT primarily consists of a perception module, a network transmission module, and a processing module. The perception module collects information about objects through sensors and other devices; the network transmission module transmits this information to the processing module, which then processes this information to enable various intelligent applications.

[0003] The bolt preload can be detected by ultrasonic testing, which injects ultrasonic waves into the bolt to detect the stress changes inside the bolt, thereby obtaining the bolt preload.

[0004] Tower cranes are widely used in infrastructure construction, including railways, highways, and water conservancy projects. Tower crane safety is a complex technical system issue, and tower crane collapse and overturning accidents are common. The main causes are structural component damage and connection failure, leading to the separation of structural components. Bolt connection failure is one of the main causes of tower crane accidents, often resulting in serious accidents.

[0005] Therefore, it is necessary to develop a monitoring device to monitor the pre-tightening force of tower crane bolts to determine the loosening status of the bolts, and to intuitively present the loosening status of the bolts to the user through the Internet of Things technology, so as to directly and quickly issue an early warning of bolt loosening. This is of great significance for the overall structural health monitoring of tower cranes to discover hidden dangers, improve the quality of tower crane products and reduce accidents. Utility Model Content

[0006] In response to the above situation, the utility model provides a tower crane bolt preload monitoring device based on the Internet of Things, which aims to monitor the preload of tower crane bolts to determine the loosening state of the bolts, thereby directly and quickly giving early warning of bolt loosening, so as to timely discover hidden dangers and reduce accidents.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] The utility model provides a tower crane bolt preload monitoring device based on the Internet of Things, comprising:

[0009] The bracket is connected to the fastener, which is the component connected by the tower crane bolts;

[0010] an ultrasonic probe connected to a bracket;

[0011] A data transmission module, electrically connected to the ultrasonic probe, for transmitting corresponding detection data to the processing module;

[0012] Power supply, used to supply power to the data transmission module and ultrasonic probe;

[0013] The distance adjustment mechanism is used to adjust the distance between the ultrasonic probe and the bracket so that the ultrasonic probe can contact the tower crane bolt.

[0014] In some embodiments of the present invention, the distance adjustment mechanism includes a spring, one end of the spring is connected to the bracket, and the other end of the spring is connected to the ultrasonic probe.

[0015] In some embodiments of the present invention, the distance adjustment mechanism further includes a guide cylinder, the spring is located in the guide cylinder, one end of the guide cylinder is connected to the bracket, and the ultrasonic probe is slidably connected to the inner wall of the guide cylinder.

[0016] In some embodiments of the present invention, the ultrasonic probe is provided with a protrusion, and the inner wall of the guide cylinder is provided with a sliding groove for use with the protrusion.

[0017] In some embodiments of the present invention, the guide cylinder is connected to the bracket via a plurality of spaced-apart connecting columns.

[0018] In some embodiments of the present invention, the bracket includes a vertical plate and a horizontal plate, the lower end of the vertical plate is welded to the fastener; the ultrasonic probe, data transmission module, power supply and distance adjustment mechanism are all connected to the lower side of the horizontal plate, and the horizontal plate is detachably connected to the vertical plate.

[0019] In some embodiments of the present invention, an insertion rod is provided on the vertical plate, the left end of the horizontal plate has a connecting portion, the lower end of the connecting portion has a socket matching the insertion rod, and a limiting member is connected to the vertical plate to prevent the insertion rod from escaping from the socket.

[0020] In some embodiments of the present invention, the limiting member includes a limiting rope, the middle part of the limiting rope contacts the top of the connecting part, the end of the limiting rope has a ring part, and the horizontal plate has a hook used in conjunction with the ring part.

[0021] In some embodiments of the present invention, the top of the connecting portion has a groove matching the limiting rope.

[0022] In some embodiments of the present invention, a solar panel is further provided on the upper side of the bracket, and the solar panel is electrically connected to the power supply.

[0023] The embodiments of the present invention have at least the following advantages or beneficial effects:

[0024] Ultrasonic detection technology is used to monitor the preload of tower crane bolts. IoT technology transmits this data to a processing module for analysis and processing, enabling the loosening of the crane bolts to be determined and prompt warnings to prevent accidents. An adjustable distance mechanism allows the ultrasonic probe to contact crane bolts at different heights, improving applicability.

[0025] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by practicing the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a structural diagram of a tower crane bolt preload monitoring device based on the Internet of Things;

[0028] Figure 2 Schematic diagram of the structure of the hook;

[0029] Figure 3 for Figure 1 A partial enlarged view of position A in the middle.

[0030] icon:

[0031] 1- bracket, 11- vertical board, 12- horizontal board, 13- plug rod, 14- connecting part, 15- limiting rope, 16- hook, 17- groove, 18- rain shield,

[0032] 2- Ultrasonic probe,

[0033] 3-Data transmission module,

[0034] 4- Power supply,

[0035] 5-adjusting mechanism, 51-spring, 52-guide cylinder, 53-connecting column,

[0036] 6- Solar panels,

[0037] 7- Fastener,

[0038] 8-Tower crane bolts. DETAILED DESCRIPTION

[0039] In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0040] In the description of the embodiments of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "inner", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0041] In addition, the term "plurality" means two or more than two, unless otherwise clearly defined.

[0042] In the embodiments of the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; they can refer to direct connection or indirect connection through an intermediate medium; they can refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0043] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] Example

[0045] See also Figures 1 to 3 This embodiment provides a tower crane bolt 8 preload monitoring device based on the Internet of Things, including a bracket 1, an ultrasonic probe 2, a data transmission module 3, a power supply 4 and a distance adjustment mechanism 5.

[0046] The bracket 1 is connected to the fastened component 7, which is a component connected by the tower crane bolt 8.

[0047] The ultrasonic probe 2 is connected to the bracket 1 .

[0048] The data transmission module 3 is electrically connected to the ultrasonic probe 2 and is used to transmit the corresponding detection data to the processing module.

[0049] The power supply 4 is provided on the bracket 1 and is used to supply power to the data transmission module 3 and the ultrasonic probe 2 .

[0050] The distance adjustment mechanism 5 is used to adjust the distance between the ultrasonic probe 2 and the bracket 1 so that the ultrasonic probe 2 can contact the tower crane bolt 8.

[0051] This embodiment utilizes ultrasonic detection technology to monitor the preload force of tower crane bolts 8. Leveraging Internet of Things technology, the monitoring data is transmitted to a processing module for analysis and processing. This facilitates determining the looseness of the tower crane bolts 8 and issuing timely warnings, thereby preventing accidents. The provision of an adjustable distance mechanism 5 allows the ultrasonic probe 2 to contact tower crane bolts 8 at different heights, improving applicability. By locating the power supply 4 at the monitoring point (on the bracket 1), the power transmission distance is shortened, minimizing power loss.

[0052] The distance adjustment mechanism 5 includes a spring 51, one end of which is connected to the bracket 1 and the other end is connected to the ultrasonic probe 2. This embodiment uses the restoring force of the spring 51 to adaptively adjust the distance between the ultrasonic probe 2 and the bracket 1, allowing the ultrasonic probe 2 to contact the tower crane bolts 8 at different heights.

[0053] The distance adjustment mechanism 5 also includes a guide cylinder 52, within which a spring 51 is positioned. One end of the guide cylinder 52 is connected to the bracket 1 via a plurality of spaced connecting posts 53. The ultrasonic probe 2 is slidably connected to the inner wall of the guide cylinder 52. Specifically, the ultrasonic probe 2 has a protrusion, and the inner wall of the guide cylinder 52 is provided with a sliding groove that cooperates with the protrusion to achieve a sliding connection between the ultrasonic probe 2 and the inner wall of the guide cylinder 52.

[0054] The bracket 1 comprises a vertical plate 11 and a horizontal plate 12. The vertical plate 11 is arranged vertically, with its lower end welded to the fastener 7. The horizontal plate 12 is arranged horizontally. The ultrasonic probe 2, data transmission module 3, power supply 4, and distance adjustment mechanism 5 are all connected to its lower side. The left end of the horizontal plate 12 is detachably connected to the upper portion of the vertical plate 11. This allows the horizontal plate 12 to be removed before re-tightening the tower crane bolts 8, thus increasing the available operating space.

[0055] In this embodiment, the detachable connection between the horizontal plate 12 and the vertical plate 11 is as follows:

[0056] A rod 13 is provided on the vertical plate 11. The left end of the horizontal plate 12 has a connecting portion 14. The lower end of the connecting portion 14 has a socket that matches the rod 13. A stopper is connected to the vertical plate 11 to prevent the rod 13 from being removed from the socket. When assembling the horizontal plate 12 and vertical plate 11, the connecting portion 14 is moved to insert the rod 13 into the socket to position the horizontal plate 12. The stopper then prevents the rod 13 from being removed from the socket, thereby securing the horizontal plate 12.

[0057] More specifically, the limiting member includes a limiting rope 15, the middle portion of which contacts the top of the connecting portion 14. The end of the limiting rope 15 has a ring portion (not shown in the figure), and the cross plate 12 has a hook 16 that cooperates with the ring portion. The ring portion is placed over the hook 16 to connect the limiting rope 15 to the cross plate 12, thereby preventing the insertion rod 13 from being removed from the insertion hole.

[0058] Furthermore, in order to better prevent the insertion rod 13 from detaching from the socket through the limiting rope 15, the top of the connecting part 14 has a groove 17 that matches the limiting rope 15; after the limiting rope 15 is inserted into the groove 17, the limiting rope 15 is not easy to detach from the connecting part 14, and can effectively play a limiting role.

[0059] When assembling the horizontal plate 12 and the vertical plate 11, the above-mentioned method of positioning with the insertion rod 13 and then limiting and fixing with the limiting member is adopted, which is more convenient than the bolt connection method.

[0060] Although electrical components such as the ultrasonic probe 2, data transmission module 3 and power supply 4 already have a certain degree of waterproof capability, in this embodiment, considering the harsh construction environment, the edge of the horizontal plate 12 is bent downward and extended to form a rain shield 18 to provide a certain degree of protection for the electrical components.

[0061] The IoT-based tower crane bolt 8 preload monitoring device also includes a solar panel 6, which is arranged on the upper side of the horizontal plate 12. The solar panel 6 is electrically connected to the power supply 4 to supplement electrical energy for the power supply 4, which is conducive to maintaining the long-term operation of the monitoring device.

[0062] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will appreciate that the present invention is susceptible to various modifications and variations. The embodiments and features of the embodiments of this application may be combined arbitrarily without conflict. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A tower crane bolt preload monitoring device based on the Internet of Things, characterized in that: include: The bracket is connected to the fastener, which is the component connected by the tower crane bolts; an ultrasonic probe connected to the bracket; A data transmission module, electrically connected to the ultrasonic probe, for transmitting corresponding detection data to the processing module; A power supply, used to supply power to the data transmission module and the ultrasonic probe; The distance adjustment mechanism is used to adjust the distance between the ultrasonic probe and the bracket so that the ultrasonic probe can contact the tower crane bolt.

2. The tower crane bolt preload monitoring device based on the Internet of Things according to claim 1 is characterized in that: The distance adjustment mechanism includes a spring, one end of the spring is connected to the bracket, and the other end of the spring is connected to the ultrasonic probe.

3. The tower crane bolt preload monitoring device based on the Internet of Things according to claim 2 is characterized in that: The distance adjustment mechanism further includes a guide cylinder, the spring is located in the guide cylinder, one end of the guide cylinder is connected to the bracket, and the ultrasonic probe is slidably connected to the inner wall of the guide cylinder.

4. The tower crane bolt preload monitoring device based on the Internet of Things according to claim 3 is characterized in that: The ultrasonic probe is provided with a convex block, and the inner wall of the guide cylinder is provided with a sliding groove used in conjunction with the convex block.

5. The tower crane bolt preload monitoring device based on the Internet of Things according to claim 3 is characterized in that: The guide cylinder is connected to the bracket through a plurality of spaced-apart connecting columns.

6. The tower crane bolt preload monitoring device based on the Internet of Things according to claim 1 is characterized in that: The bracket includes a vertical plate and a horizontal plate, the lower end of the vertical plate is welded to the fastener; the ultrasonic probe, the data transmission module, the power supply and the distance adjustment mechanism are all connected to the lower side of the horizontal plate, and the horizontal plate is detachably connected to the vertical plate.

7. The tower crane bolt preload monitoring device based on the Internet of Things according to claim 6 is characterized in that: The vertical plate is provided with an insertion rod, the left end of the horizontal plate has a connecting portion, the lower end of the connecting portion has a socket matching the insertion rod, and the vertical plate is connected with a limiting piece for preventing the insertion rod from being separated from the socket.

8. The tower crane bolt preload monitoring device based on the Internet of Things according to claim 7 is characterized in that: The limiting member includes a limiting rope, the middle portion of the limiting rope contacts the top of the connecting portion, the end portion of the limiting rope has a ring portion, and the transverse plate has a hook used in conjunction with the ring portion.

9. The tower crane bolt preload monitoring device based on the Internet of Things according to claim 8, characterized in that: The top of the connecting portion is provided with a groove matching the limiting rope.

10. The tower crane bolt preload monitoring device based on the Internet of Things according to any one of claims 1 to 9, characterized in that: It also includes a solar panel arranged on the upper side of the bracket, and the solar panel is electrically connected to the power supply.

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