Safety detection device for tower crane

Abstract

The utility model relates to the technical field of crane detection, and discloses a safety detection device for a tower crane, which comprises an external frame, a compression seat is arranged in the external frame, a lower clamping piece moves upwards to be matched with an upper clamping piece to clamp a steel wire rope through extension of a telescopic rod I, and the steel wire rope is matched in the compression seat at the moment; when a driving motor runs, a roller rotates, then the whole detection device moves along the steel wire rope, and then a microcontroller controls a second telescopic column to stretch, so that a displacement plate drives a pressing seat to press the steel wire rope; meanwhile, the compression force borne by the steel wire rope is sensed by the pressure sensing assembly, data are transmitted to the microcontroller to be processed, and then the numerical value is read out through the loudspeaker, so that the tension data of the steel wire rope in the air or at the position where the detection device is inconvenient to install can be detected by utilizing the detection device capable of moving along the steel wire rope; and convenience in safety detection of the steel wire rope is improved.

Description

Technical Field

[0001] This utility model relates to the field of crane inspection technology, specifically a tower crane safety inspection device. Background Technology

[0002] Tower cranes are lifting equipment commonly used in the construction of high-rise buildings. The main structure of a tower crane includes the tower, machine room, jib, counterweight, foundation, and wire ropes. The tower is constructed of longitudinal and transverse steel members, supporting the entire weight of the crane; the machine room, located at the top of the tower, is equipped with an operating system for controlling the crane; the jib is rotatable and equipped with a hook for lifting materials; the counterweight ensures the crane's balance during lifting; and the foundation, typically made of concrete, provides stable support. When conducting safety inspections of tower cranes, it is usually necessary to test the tension data of the wire ropes to determine whether the wire ropes are operating safely during tower crane use.

[0003] Existing patent document CN214066739U discloses a tower crane rope strength testing device. This device has a gantry frame and a support on the upper surface of its base. A tension testing component and a bending testing component are respectively mounted on the gantry frame and the support. The tension testing component includes a linear motor located inside the gantry frame, with a crossbeam embedded outside the motor. Two clamping components are located between the outside of the crossbeam and the upper surface of the base. The bending testing component includes a support frame located at the top of the support, with a test platform fixedly installed at the bottom of the support frame. This rope strength testing device can perform tension and bending tests on the rope body, exhibiting good structural functionality and providing comprehensive strength parameters. Although this device offers many advantages, it still has the following problems: During testing, the device usually requires manual placement on the wire rope, necessitating personnel to reach the wire rope. This makes it inconvenient to use when testing wire ropes at high altitudes or in confined spaces. Therefore, we propose a tower crane safety testing device. Utility Model Content

[0004] The purpose of this utility model is to provide a safety detection device for tower cranes, so as to solve the problem mentioned in the background art that the existing devices are inconvenient to use when detecting wire ropes at high altitudes or in locations where installation is inconvenient.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tower crane safety detection device, comprising an external frame, an internal pressure seat, a pressure sensing component at the bottom of the pressure seat, a displacement plate at the bottom of the pressure sensing component, a telescopic rod at the bottom of the displacement plate, a microcontroller electrically connected to the telescopic rod, a speaker electrically connected to the microcontroller, support members fixed to both sides of the external frame, a lower clamping member at the top of the support members, a lower drive wheel inside the lower clamping member, multiple telescopic rods at the bottom of the lower clamping member, a drive motor cooperating with the lower drive wheel fixed to the side wall of the lower clamping member, an upper clamping member cooperating with the top of the lower clamping member, and sliding rods at both ends of the displacement plate.

[0006] Preferably, the outer frame sidewall is provided with a top plate that cooperates with the sidewall of the upper clamping member, and a limiting post passes through the top of the top plate.

[0007] Preferably, the bottom of the top plate is provided with an assembly component, and the assembly component is provided with bristles.

[0008] Preferably, the limiting post is fixed to the outer wall of the assembled part, and a spring is sleeved on the outside of the limiting post.

[0009] Preferably, the outer frame has a groove inside, and the telescopic rod 2 is embedded inside the groove.

[0010] Preferably, the microcontroller is embedded inside the outer frame, and the speaker is fixed to the side wall of the outer frame.

[0011] Preferably, the top of the compression seat is provided with an arc-shaped groove, and the side wall of the compression seat is fixedly connected with a limiting piece that cooperates with the sliding rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model relates to a method where, when the wire rope of a tower crane is attached to the lower and upper clamping parts at both ends of the external frame, the extension of the telescopic rod causes the lower clamping part to move upward and clamp the wire rope in conjunction with the upper clamping part. At this time, the wire rope is attached to the inside of the pressure seat. Then, when the drive motor runs, the roller rotates, causing the overall detection device to move along the wire rope. Subsequently, the microcontroller controls the extension of the telescopic column to cause the displacement plate to drive the pressure seat to press the wire rope. At the same time, the pressure force on the wire rope is sensed by the pressure sensing component and the data is transmitted to the microcontroller for processing. The value is then read out through a speaker. Thus, by using a detection device that can move along the wire rope, the tension data of the wire rope at high altitudes or in locations where it is inconvenient to install a detection device can be detected, improving the convenience of wire rope safety inspection and facilitating the safety inspection of tower cranes at high altitudes.

[0014] 2. In this invention, when the detection device moves along the wire rope, the wire rope is located between two splicing parts, and the splicing parts are located in the forward direction of the detection device. This allows the surface of the wire rope in the forward direction to be cleaned during the movement of the detection device, preventing dust and gravel on the surface of the wire rope from affecting the contact between the roller and the wire rope. This enables the detection device to move stably along the wire rope, improving the stability of the safety detection device during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the combined structure of the limiting post and the assembly parts of this utility model;

[0017] Figure 3 For the present utility model Figure 1 An enlarged diagram of position A in the middle.

[0018] In the diagram: 100, external frame; 110, top plate; 111, limiting post; 112, assembly piece; 113, brush bristles; 120, support piece; 121, lower clamping piece; 122, telescopic rod one; 123, lower drive wheel; 124, drive motor; 125, upper clamping piece; 130, microcontroller; 131, speaker; 132, groove; 133, telescopic rod two; 134, displacement plate; 135, sliding rod; 136, pressure sensing assembly; 140, pressure seat; 141, arc groove; 142, limiting piece. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example

[0021] Please see Figures 1-3The diagram illustrates a safety detection device for a tower crane, comprising an outer frame 100, inside which a pressure seat 140 is disposed. A pressure sensing component 136, electrically connected to a microcontroller 130, is disposed at the bottom of the pressure seat 140. The pressure sensing component 136 is not fixedly connected to the bottom of the pressure seat 140. The pressure sensing component 136 uses a commercially available strain gauge pressure sensor, whose main structure includes a thin-film sensitive element, a strain gauge adhered to the diaphragm, a bridge circuit, and a square housing. The diaphragm deforms under external pressure. The strain gauge's resistance changes, and the bridge circuit converts this resistance change into a corresponding voltage signal, which is then transmitted to the microcontroller 130. A displacement plate 134 is bolted to the bottom of the pressure sensing assembly 136. A second telescopic rod 133 is located at the bottom of the displacement plate 134. The second telescopic rod 133 and the first telescopic rod 122 are both commercially available electric actuators. The second telescopic rod 133 is electrically connected to the microcontroller 130, which is a commercially available small programmable PLC controller. The microcontroller 130 is electrically connected to... There is a speaker 131, which uses a common model on the market. Support members 120 are bolted to both sides of the external frame 100. A lower clamping member 121 is provided on the top of the support member 120. A lower drive wheel 123 is provided inside the lower clamping member 121. The drive wheel 123 is a stainless steel wheel with an anti-slip texture. Multiple telescopic rods 122 are provided at the bottom of the lower clamping member 121. When the telescopic rods 122 extend, the lower clamping member 121 moves upward. The side walls of the lower clamping member 121 are bolted to... A drive motor 124 is connected to the power input end of the lower drive wheel 123. The drive motor 124 is a common small stepper motor. The drive motor 124 is electrically connected to the microcontroller 130 and can stably stop the drive wheel 123. The top of the lower clamping member 121 is fitted with an upper clamping member 125. Multiple drive wheels 123 are arranged inside the upper clamping member 125. At the same time, a drive motor 124 that drives the drive wheels 123 to rotate is also arranged on the rear side of the outer frame 100. Sliding rods 135 are arranged at both ends of the displacement plate 134.

[0022] Specifically, the outer frame 100 has a top plate 110 on its side wall that cooperates with the side wall of the upper clamping member 125, and a limit post 111 passes through the top of the top plate 110.

[0023] Furthermore, the bottom of the top plate 110 is provided with a splicing component 112, which is made of plastic and has bristles 113 inside, which are made of common wear-resistant nylon yarn.

[0024] Furthermore, the limiting post 111 is fixed to the outer wall of the assembly 112 by bolts, and a spring is sleeved on the outside of the limiting post 111, which allows the assembly 112 to be close to the outer wall of the wire rope.

[0025] Furthermore, the outer frame 100 has a groove 132 inside, and the telescopic rod 133 is embedded inside the groove 132.

[0026] It is worth noting that the microcontroller 130 is embedded inside the outer frame 100, and the speaker 131 is fixed to the side wall of the outer frame 100.

[0027] It is worth noting that the top of the pressure seat 140 is provided with an arc-shaped groove 141, and the side wall of the pressure seat 140 is fixedly connected with a limiting piece 142 that cooperates with the sliding rod 135. The sliding rod 135 passes through the top of the limiting piece 142. The sliding rod 135 and the limiting piece 142 can slide slightly up and down to limit the pressure seat 140.

[0028] In addition, the external frame 100 is equipped with commonly available rechargeable electronic components for powering the detection device. The circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0029] Working principle: When the steel wire rope of the tower crane is engaged between the lower clamping member 121 and the upper clamping member 125 at both ends of the outer frame 100, the telescopic rod 122 extends, causing the lower clamping member 121 to move upward and engage with the upper clamping member 125 to clamp the steel wire rope. At this time, the steel wire rope is engaged inside the pressure seat 140. Then, the drive motor 124 runs, causing the roller to rotate, which in turn causes the overall detection device to move along the steel wire rope. Then, the microcontroller 130 controls the extension of the telescopic column 2, causing the displacement plate 134 to drive the pressure seat 140 to press the steel wire rope. At the same time, the pressure force on the steel wire rope is sensed by the pressure sensor component 136 and the data is transmitted to the microcontroller 130 for processing and then transmitted through the speaker 13. 1. The numerical values ​​are read out, and the tension data of the wire rope at high altitudes or in locations where it is inconvenient to install the detection device can be detected using a detection device that can move along the wire rope. This improves the convenience of wire rope safety inspection and facilitates safety inspection of tower cranes at high altitudes. When the detection device moves along the wire rope, the wire rope is located between the two splicing parts 112, and the splicing parts 112 are located in the forward direction of the detection device. This allows the surface of the wire rope in the forward direction to be cleaned during the movement of the detection device, preventing dust and gravel on the surface of the wire rope from affecting the contact between the roller and the wire rope. This allows the detection device to move stably along the wire rope, improving the stability of the safety detection device during use.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tower crane safety detection device comprising an outer frame (100), characterized in that: The external frame (100) is internally provided with a compression seat (140), the bottom of the compression seat (140) is provided with a pressure sensing assembly (136), the bottom of the pressure sensing assembly (136) is provided with a displacement plate (134), the bottom of the displacement plate (134) is provided with a telescopic rod two (133), the telescopic rod two (133) is electrically connected with a microcontroller (130), the microcontroller (130) is electrically connected with a loudspeaker (131), both sides of the external frame (100) are fixedly connected with a support (120), the top of the support (120) is provided with a lower clamping piece (121), the lower clamping piece (121) is internally provided with a lower drive wheel (123), the bottom of the lower clamping piece (121) is provided with a plurality of telescopic rods one (122), the side wall of the lower clamping piece (121) is fixedly connected with a drive motor (124) matched with the lower drive wheel (123), the top of the lower clamping piece (121) is matched with an upper clamping piece (125), both ends of the displacement plate (134) are provided with sliding rods (135).

2. A tower crane safety detection device according to claim 1, characterised in that: The side wall of the external frame (100) is provided with a top plate (110) matched with the side wall of the upper clamping piece (125), and the top of the top plate (110) penetrates a limiting column (111).

3. A tower crane safety detection device according to claim 2, characterised in that: The bottom of the top plate (110) is provided with a splicing piece (112), and the splicing piece (112) is internally provided with bristles (113).

4. A tower crane safety detection device according to claim 2, characterised in that: The limiting column (111) is fixedly connected to the outer wall of the splicing piece (112), and the limiting column (111) is externally sleeved with a spring.

5. A tower crane safety detection device according to claim 1, characterized in that: The internal of the external frame (100) is provided with a recess (132), and the telescopic rod two (133) is embedded in the recess (132).

6. A tower crane safety detection apparatus according to claim 1, characterized in that: The microcontroller (130) is embedded in the internal of the external frame (100), and the loudspeaker (131) is fixedly connected to the side wall of the external frame (100).

7. A tower crane safety detection apparatus according to claim 1, characterized in that: The top of the compression seat (140) is provided with an arc-shaped groove (141), and the side wall of the compression seat (140) is fixedly connected with a limiting piece (142) matched with the sliding rod (135).

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