Safety belt detection device and aerial work safety belt

Abstract

The application discloses a safety belt detection device and an aerial work safety belt. The safety belt detection device is used for detecting a wearing state of the aerial work safety belt, the aerial work safety belt comprises a safety belt body and a safety hook connected to the safety belt body, and the safety belt detection device comprises a liquid pipe, a connecting pipe and a liquid level signal sensor. The two ends of the liquid pipe are connected to the safety belt body and the safety hook respectively, a flowable solution is arranged in the liquid pipe, the two ends of the connecting pipe are communicated with the two ends of the liquid pipe respectively, and the liquid level signal sensor is arranged in the liquid pipe and close to one end of the safety belt body. The technical scheme of the application aims to reduce the detection difficulty of the wearing state of the aerial work safety belt, reduce the missed detection rate and improve the detection reliability.

Description

Technical Field

[0001] This invention relates to the field of high-altitude work protection technology, and in particular to a safety belt detection device and a high-altitude work safety belt using the safety belt detection device. Background Technology

[0002] Safety belts for working at heights are crucial equipment for protecting the lives of workers. For those engaged in such work, safety belts are lifelines. Typically, dedicated safety management personnel are required at work sites to supervise the wearing and use of safety belts. However, this supervision is challenging and requires significant manpower. While video detection can be used to monitor safety belt wearing, the complex environment of construction sites, blind spots in cameras, and the small size of safety hooks making them difficult to identify in video images lead to missed detections and misidentifications, resulting in unsatisfactory detection effectiveness. Summary of the Invention

[0003] The main objective of this invention is to provide a safety belt detection device, which aims to reduce the difficulty of detecting the wearing status of safety belts in high-altitude operations, reduce the false negative rate, and improve the reliability of detection.

[0004] To achieve the above objectives, the present invention proposes a safety belt detection device for detecting the wearing status of a safety belt used in high-altitude operations. The high-altitude operation safety belt includes a safety belt body and a safety hook connected to the safety belt body. The safety belt detection device includes:

[0005] A liquid tube, the two ends of which are respectively connected to the seat belt body and the safety hook, and the liquid tube contains a flowable solution;

[0006] A connecting pipe, the two ends of which are respectively connected to the two ends of the liquid pipe; and

[0007] A liquid level signal sensor is disposed inside the liquid tube and near one end of the seat belt body.

[0008] In one embodiment of the present invention, the seat belt detection device further includes:

[0009] Two one-way valves are respectively located at the connection between the liquid pipe and the connecting pipe. The one-way valves are used to prevent the solution in the liquid pipe from flowing into the connecting pipe.

[0010] In one embodiment of the present invention, the solution in the liquid tube is a conductive liquid.

[0011] In one embodiment of the present invention, the connecting pipe is an air pipe.

[0012] In one embodiment of the present invention, the liquid level signal sensor is a non-contact capacitive liquid level signal sensor.

[0013] In one embodiment of the present invention, the liquid tube and the connecting tube are flexible tubes.

[0014] In one embodiment of the present invention, the seat belt detection device further includes:

[0015] A first wireless communication module is disposed in the liquid pipe and connected to the liquid level signal sensor.

[0016] In one embodiment of the present invention, the seat belt detection device further includes a management server and a second wireless communication module, wherein the management server is connected to the first wireless communication module through the second wireless communication module.

[0017] In one embodiment of the present invention, the seat belt detection device further includes a warning device, which is connected to the first wireless communication module.

[0018] The present invention also provides a safety belt for working at height, the safety belt including a safety belt body, a safety hook connected to the safety belt body, and a safety belt detection device.

[0019] The safety belt detection device in this invention is used to detect the wearing status of a high-altitude work safety belt. The high-altitude work safety belt includes a safety belt body and a safety hook connected to the safety belt body. The correct way to use a high-altitude work safety belt is for the safety hook to be higher than the safety belt body. The safety belt detection device in this embodiment is used to detect the relative positional relationship between the installation hook and the installation belt body. Specifically, the safety belt detection device includes a liquid pipe, a connecting pipe, and a liquid level signal sensor. The liquid pipe contains a solution, and the liquid level signal sensor is located near one end of the safety belt body. When the position of the safety belt body is lower than the position of the safety hook, the solution in the liquid pipe transmits pressure to the liquid level signal sensor, indicating that the safety hook is properly suspended, indicating that the high-altitude work safety belt is in the correct usage state. When the position of the safety belt body is higher than the position of the safety hook, the solution in the liquid pipe is far from the liquid level signal sensor and cannot transmit pressure to it, indicating that the safety hook is not suspended, indicating that the high-altitude work safety belt is not in the correct usage state. Compared to existing technologies that rely on manual or video detection, the safety belt detection device in this invention can easily and accurately detect the wearing status of each high-altitude work safety belt, without any missed detections or incorrect judgments. This reduces the difficulty of detecting the wearing status of high-altitude work safety belts and improves the reliability of high-altitude safety belt wearing status detection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a structure of an embodiment of the seat belt detection device of the present invention;

[0022] Figure 2 This is a structural block diagram of the seat belt detection device of the present invention.

[0023] Explanation of icon numbers:

[0024] label name label name 100 Seat belt detection device 50 Alarm 10 Liquid tube 60 Management Server 20 Connecting pipe 70 Second wireless communication module 30 Liquid level signal sensor 80 one-way valve 40 First wireless communication module

[0025] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0028] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0030] This invention proposes a safety belt for working at heights.

[0031] Reference Figure 1 In one embodiment of the present invention, a safety belt detection device 100 is used to detect the wearing status of a high-altitude work safety belt. The high-altitude work safety belt includes a safety belt body (not shown) and a safety hook (not shown) connected to the safety belt body, comprising:

[0032] A liquid tube 10, the two ends of which are respectively connected to the seat belt body and the safety hook, and the liquid tube 10 contains a flowable solution (not shown);

[0033] A connecting pipe 20, the two ends of which are respectively connected to the two ends of the liquid pipe 10; and

[0034] A liquid level signal sensor 30 is disposed inside the liquid pipe 10 and near one end of the seat belt body.

[0035] The safety belt detection device 100 in this invention is used to detect the wearing status of a high-altitude work safety belt. The high-altitude work safety belt includes a safety belt body and a safety hook connected to the safety belt body. The correct way to use a high-altitude work safety belt is for the safety hook to be higher than the safety belt body. The safety belt detection device 100 in this embodiment is used to detect the relative positional relationship between the installation hook and the installation belt body. Specifically, the safety belt detection device 100 includes a liquid pipe 10, a connecting pipe 20, and a liquid level signal sensor 30. The liquid pipe 10 contains a solution, and the liquid level signal sensor 30 is located near one end of the safety belt body. When the position of the safety belt body is lower than the position of the safety hook, the solution in the liquid pipe 10 transmits pressure to the liquid level signal sensor 30, indicating that the safety hook is properly suspended, indicating that the high-altitude work safety belt is not being used correctly. When the position of the safety belt body is higher than the position of the safety hook, the solution in the liquid pipe 10 is far from the liquid level signal sensor 30 and cannot transmit pressure to it, indicating that the safety hook is not suspended, indicating that the high-altitude work safety belt is not being used correctly. Compared to existing technologies that use manual or video detection, the safety belt detection device 100 in this invention can accurately detect the wearing status of each high-altitude work safety belt, without any missed detections or incorrect judgments. This reduces the difficulty of detecting the wearing status of high-altitude work safety belts and improves the reliability of high-altitude safety belt use and wearing detection.

[0036] In one embodiment of the invention, the liquid tube 10 and the connecting tube 20 can be detachably connected to the seat belt body and the safety hook via straps or ropes, facilitating maintenance of the seat belt detection device 100 or the high-altitude safety belt. Alternatively, the liquid tube 10 and the connecting tube 20 can be fixedly connected to the seat belt body and the safety hook via adhesive or stitching, improving the reliability of the seat belt detection device 100's fixation. Any method that allows for a secure connection between the liquid tube 10 and the connecting tube 20 and the seat belt body and the safety hook is acceptable and not limited thereto. In some embodiments, the connecting tube 20 may be directly fixed to the liquid tube 10 without being connected to the seat belt body and the safety hook, ensuring the connecting tube 20's freedom of movement.

[0037] It should be noted that the volume of the solution is smaller than the capacity of the liquid tube 10, thus allowing the solution to flow freely within the liquid tube 10. Furthermore, the solution within the liquid tube 10 is a conductive liquid. The solution within the liquid tube 10 is a conductive liquid, such as tap water or salt water, and is not limited thereto.

[0038] Furthermore, the connecting pipe 20 is an air pipe, meaning it contains air. The connection between the liquid pipe 10 and the connecting pipe 20 allows air circulation between them, enabling the solution within the liquid pipe 10 to flow within it. However, the solution in the liquid pipe 10 will not flow into the interior of the connecting pipe 20. Specifically, the outer diameter of the connecting pipe 20 is smaller than the inner diameter of the liquid pipe 10, allowing both ends of the connecting pipe 20 to be directly inserted into the liquid pipe 10. Additionally, sealing plates can be provided at both ends inside the liquid pipe 10. These sealing plates can flow with the solution within the liquid pipe 10, and when the solution reaches one end of the connecting pipe 20, the sealing plate can seal the connecting pipe 20, preventing the solution in the liquid pipe 10 from flowing into the interior of the connecting pipe 20. Furthermore, the liquid pipe 10 and the connecting pipe 20 can be connected via a connector, which will not be described in detail here.

[0039] In one embodiment of the present invention, the liquid level signal sensor 30 is a non-contact capacitive liquid level signal sensor 30.

[0040] In one embodiment of the present invention, the liquid level signal sensor 30 can be of various types, such as a float-type, photoelectric liquid level sensor, and a non-contact capacitive liquid level sensor. The non-contact capacitive liquid level sensor converts the hydrostatic pressure of the liquid into an electrical signal, which is then amplified by an amplifier circuit and compensated by a compensation circuit, finally outputting the signal as a current. Because the technical solution of the present invention utilizes the principle of liquid isobarism, the control principle of unidirectional liquid flow within the liquid pipe using a one-way valve, and the sensing trigger principle of changes in medium capacitance, it achieves automatic, real-time, and accurate detection of the wearing status of safety belts in high-altitude operations, improving the accuracy of safety belt wearing status detection and also increasing detection efficiency.

[0041] Reference Figure 1 In one embodiment of the present invention, the seat belt detection device 100 further includes:

[0042] Two one-way valves 80 are respectively provided at the connection between the liquid pipe 10 and the connecting pipe 20. The one-way valves 80 are used to prevent the solution in the liquid pipe 10 from flowing into the connecting pipe 20.

[0043] In one embodiment of the present invention, it is understood that the one-way valve 80 can be connected to the liquid pipe 10 and the connecting pipe 20 by threads or by direct connection. This is not a limitation. Due to the one-way valve 80, air can circulate between the liquid pipe 10 and the connecting pipe 20, allowing the solution in the liquid pipe 10 to flow within it. Simultaneously, it prevents the solution in the liquid pipe 10 from flowing back into the connecting pipe 20, ensuring that the solution remains inside the liquid pipe 10. This ensures that the solution can generate sufficient liquid pressure on the liquid level sensor 30, thereby ensuring the reliability of seatbelt detection.

[0044] In one embodiment of the present invention, the liquid tube 10 and the connecting tube 20 are flexible tubes.

[0045] In one embodiment of the present invention, both the liquid pipe 10 and the connecting pipe 20 are made of plastic, such as ABS (Acrylonitrile Butadiene Styrene plastic, a terpolymer of acrylonitrile, butadiene, and styrene), POM (Polyoxymethylene), PS (Polystyrene), PMMA (polymethyl methacrylate), PC (Polycarbonate), or PET (polyethylene glycol terephthalate). This reduces the weight of the liquid pipe 10 and the connecting pipe 20, saving costs and reducing the burden on workers. Furthermore, the plastic material used for the liquid pipe 10 and the connecting pipe 20 provides good flexibility, facilitating easy movement.

[0046] Reference Figure 2 In one embodiment of the present invention, the seat belt detection device 100 further includes:

[0047] A first wireless communication module 40 is disposed on the liquid pipe 10 and connected to the liquid level signal sensor 30.

[0048] In one embodiment of the present invention, both the first wireless communication module 40 and the second wireless communication module 70 can be Bluetooth modules, WiFi modules, LoRa modules, etc., as long as they can transmit the signal collected by the liquid level signal sensor 30 to the corresponding signal receiving end. Understandably, the installation belt detection device also includes a management server 60, which can be connected to the first wireless communication module 40 in each safety belt detection device 100 on site via the second communication module, so that managers can monitor the status of all safety belts on the construction site in real time, improving management convenience.

[0049] Furthermore, the safety belt detection device 100 also includes a warning device 50, which can be an audible warning device or a warning light, etc., without limitation. The warning device 50 is connected to a wireless communication module to send alerts to workers, enabling them to promptly suspend the safety hook at a safe position above their heads to ensure their safety. It is understood that the warning device 50 can be a liquid level signal sensor 30 directly connected to the warning device 50 via a first wireless communication module 40, or it can be a device where an administrator sends a signal from a backend management server 60 to the first wireless communication module 40 via a second wireless communication module 70 to the warning device 50 to alert workers, thereby improving the safety of using safety belts for high-altitude operations.

[0050] The present invention also proposes a safety belt for working at height, which includes a safety belt body, a safety hook, and a safety belt detection device 100. The specific structure of the safety belt detection device 100 is as described in the above embodiments. Since the present safety belt for working at height adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0051] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A harness detection device for detecting a wearing state of a work at height harness including a harness body and a safety hook connected to the harness body, characterized by, The safety belt detection device comprises: a liquid tube, two ends of the liquid tube being connected with the safety belt body and the safety hook respectively, a flowable solution being arranged inside the liquid tube, and a sealing sheet being arranged at both ends of the liquid tube inside; a connecting tube, two ends of the connecting tube being communicated with two ends of the liquid tube respectively, an outer diameter of the connecting tube being smaller than an inner diameter of the liquid tube, so that the two ends of the connecting tube are inserted into the inside of the two ends of the liquid tube respectively, and the sealing sheet is used to seal the connecting tube to prevent the solution from flowing into the connecting tube; and a liquid level signal sensor, the liquid level signal sensor being arranged in the liquid tube and being arranged close to one end of the safety belt body.

2. The seat belt detection device of claim 1, wherein The safety belt detection device further comprises: two one-way valves, the two one-way valves being arranged at the connection between the liquid tube and the connecting tube respectively, and the one-way valves being used to prevent the solution in the liquid tube from flowing into the connecting tube.

3. The seat belt detection device of claim 1, wherein The solution in the liquid tube is a conductive liquid.

4. The belt detection apparatus of claim 1, wherein The connecting tube is an air tube.

5. The seat belt detection device of claim 1, wherein The liquid level signal sensor is a non-contact capacitive liquid level signal sensor.

6. The seat belt detection device of claim 1, wherein The liquid tube and the connecting tube are flexible tubes.

7. The belt detection apparatus according to any one of claims 1 to 6, characterized by The safety belt detection device further comprises: a first wireless communication module, the first wireless communication module being arranged in the liquid tube and being connected with the liquid level signal sensor.

8. The belt detection apparatus of claim 7, wherein The safety belt detection device further comprises a management server and a second wireless communication module, the management server being connected with the first wireless communication module through the second wireless communication module.

9. The seat belt detection device of claim 8, wherein The safety belt detection device further comprises a warning device, the warning device being connected with the first wireless communication module.

10. A high place work safety belt characterized by, The high-altitude operation safety belt comprises a safety belt body, a safety hook connected with the safety belt body, and the safety belt detection device according to any one of claims 1 to 9.

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