An intelligent seat belt
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 何泽康
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-26
AI Technical Summary
Existing technologies contain violations such as workers not wearing safety belts, safety belts being unattached, and safety belts being used at a low position, which are difficult to effectively identify and manage.
A smart safety belt was designed. By integrating a limit switch and an angle detector into the safety hook, the open and closed status of the safety hook and whether the hook is fastened to the attachment point are monitored in real time. The angle detector is used to identify the usage status of the safety belt. Data acquisition and alarm are performed using a microcontroller and an electronic control box.
Effectively identify and manage safety belt violations during high-altitude operations, improve the safety of high-altitude operations, reduce costs, and enable remote monitoring and management.
Smart Images
Figure CN224404221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety equipment for high-altitude operations, and in particular to an intelligent safety belt. Background Technology
[0002] According to safety regulations for working at heights, any work performed at a height of 2 meters or more above the ground is considered working at heights, and workers must wear safety harnesses to ensure their safety. During working at heights, the safety harness must be kept engaged at all times, with the hook always fastened to the anchor point and not arbitrarily unfastened. The anchor point must meet the following requirements: it must be secure and reliable; it must be able to withstand the worker's entire weight and any potential impact; and the anchor point must be higher than the worker's shoulder level to ensure maximum protection in the event of a fall. However, various violations still occur during working at heights, such as workers not wearing safety harnesses, safety harnesses being left unattached, and safety harnesses being used at a low position. Utility Model Content
[0003] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide an intelligent seat belt that can effectively identify the violation of unloaded seat belts.
[0004] To achieve the above objectives, this utility model provides an intelligent safety belt, including a safety belt body, a safety rope, and a safety hook. The safety hook includes a hook body and a hook locking tongue hinged to the hook body via a first connecting shaft. The two ends of the safety rope are respectively connected to the safety belt body and the hook body. The end of the hook body has a hook abutment portion, and the end of the hook locking tongue has a locking tongue abutment portion.
[0005] The safety hook also includes a switch trigger that is rotatably or movably mounted on the hook body via a second connecting shaft, a first limit switch fixed at the hook abutment, and a second limit switch fixed to the hook body, the second limit switch being disposed near the second connecting shaft;
[0006] When the safety hook switches from the open state to the closed state, the locking tongue abutment rotates toward the hook abutment until the two abut against each other, and the first limit switch is triggered by the locking tongue abutment.
[0007] When the safety hook is fastened to the attachment point, the switch trigger can contact the attachment point and rotate or move relative to the hook body along the second connecting shaft, and the second limit switch is triggered by the switch trigger.
[0008] Furthermore, the switch trigger is a protective cover fitted around the outer periphery of the hook body, and both the first limit switch and the second limit switch are housed within the protective cover.
[0009] Furthermore, the switch trigger is a pressure plate, which is arranged side by side with the hook body in the thickness direction of the hook body.
[0010] Furthermore, the smart seat belt also includes an electronic control box fixed to the main body of the seat belt. The electronic control box contains a connected battery and a microcontroller. The microcontroller is connected to a first limit switch and a second limit switch via wires.
[0011] Furthermore, the safety hook also includes a secondary locking plate hinged to the hook body via a third connecting shaft, and a third limit switch fixed to the secondary locking plate. The hook latch has an arc-shaped limiting groove, and a limiting shaft is fixed on the secondary locking plate. The limiting shaft passes through the arc-shaped limiting groove and the two slide in cooperation. The third limit switch is connected to a microcontroller via a wire, and a trigger protrusion is fixed on the hook body.
[0012] When the safety hook switches from the open state to the closed state, the secondary locking plate drives the third limit switch to rotate toward the trigger protrusion, and the third limit switch is triggered by the trigger protrusion.
[0013] Furthermore, the smart safety belt also includes an angle detector. A rope detection section is provided on the safety rope, and the angle detector is fixed on the rope detection section. The angle detector is connected to a microcontroller via a wire.
[0014] When the safety hook is suspended high, the rope detection section is in a vertical position;
[0015] When the safety hook is low-hanging, the rope detection section is in a horizontal state.
[0016] Furthermore, the angle detector is an angle sensor or an angle switch.
[0017] Furthermore, the smart seat belt also includes a vibration detector, which is fixed to the seat belt body and connected to a microcontroller via wires.
[0018] Furthermore, the vibration detector is a vibration sensor or a vibration switch.
[0019] Furthermore, the seat belt body has a left waist belt, a right waist belt, and a waist buckle connecting the left waist belt and the right waist belt. The waist buckle integrates a detection switch, which is connected to a microcontroller via a wire.
[0020] The detection switch is triggered when the waist buckle is fastened.
[0021] As described above, the intelligent seat belt of this utility model has the following beneficial effects:
[0022] This application can identify the opening and closing action of the safety hook through the signal of the first limit switch, and can identify whether the safety hook is fastened to the attachment point through the signal of the second limit switch; thus, it can effectively identify whether there is a violation of the safety belt being unattached during high-altitude operations, which facilitates the manager's safety operation management and improves the safety of high-altitude operations. Attached Figure Description
[0023] Figure 1 This is a structural schematic diagram of the smart seat belt of this application.
[0024] Figure 2 This is a structural schematic diagram of the first embodiment of the safety hook in this application.
[0025] Figure 3 This is a schematic diagram of the structure of the second embodiment of the safety hook in this application.
[0026] Figure 4 This is a schematic diagram of the structure of the third embodiment of the safety hook in this application.
[0027] Figure 5 This is a schematic diagram of the structure of the fourth embodiment of the safety hook in this application.
[0028] Figure 6 This is a structural schematic diagram of the fifth embodiment of the safety hook in this application.
[0029] Figure 7 This is a structural schematic diagram of the sixth embodiment of the safety hook in this application.
[0030] Figure 8 This is a schematic diagram showing the state of the safety rope when the safety hook is suspended high in this application.
[0031] Figure 9 This is a schematic diagram showing the state of the safety rope when the safety hook is low in the present application.
[0032] Figure 10 This is a schematic diagram of the structure of the waist buckle embodiment one in this application.
[0033] Figure 11 This is a schematic diagram of the structure of the waist buckle embodiment two in this application.
[0034] Figure 12 This is a schematic diagram of the structure of the waist buckle in Embodiment 3 of this application.
[0035] Figure 13 This is a schematic diagram of the structure of the waist buckle in Embodiment 4 of this application.
[0036] Figure 14 This is a schematic diagram of the structure of the waist buckle in Embodiment 5 of this application.
[0037] Figure 15 This is a schematic diagram of the structure of Embodiment Six of the waist buckle in this application.
[0038] Figure 16 This is a schematic diagram of the structure of the waist buckle embodiment seven in this application.
[0039] Figure 17 This is a schematic diagram of the structure of the waist buckle embodiment eight in this application.
[0040] Figure 18 This is a schematic diagram of the structure when the connection of the waist buckle in Embodiment 8 is removed.
[0041] Figure 19 This is a schematic diagram of the structure of each limit switch in this application.
[0042] Component designation explanation
[0043] 10. Seat belt body
[0044] 11. Left waist belt
[0045] 12 Right waist belt
[0046] 13 Connecting ring
[0047] 20 safety ropes
[0048] 21 Rope Inspection Section
[0049] 30 Safety Hooks
[0050] 31 Hook body
[0051] 301 Hook Abutment Part
[0052] 302 Hook Opening
[0053] 303 Triggering protrusion
[0054] 32 First connecting shaft
[0055] 33 Hook lock tongue
[0056] 331 Locking tongue contact part
[0057] 34 Second connecting shaft
[0058] 35 Switch trigger
[0059] 36 First Limit Switch
[0060] 37 Second Limit Switch
[0061] 38 Third connecting shaft
[0062] 39 Secondary locking plate
[0063] 310 Arc-shaped limiting groove
[0064] 311 Third Limit Switch
[0065] 312 Limiting Shaft
[0066] 313 Elastic component
[0067] 40 Electrical control box
[0068] 50 wire
[0069] 60° Angle Detector
[0070] 70 Waist Buckle
[0071] 71 Lock body
[0072] 72 Connecting Locking Plate
[0073] 73 Guiding slope
[0074] 74 Cross-shaped through groove
[0075] 75 Locking trigger element
[0076] 80 Detection Switch
[0077] 90 rubber sleeve Detailed Implementation
[0078] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0079] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed herein. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0080] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.
[0081] Furthermore, the use of terms such as "first" and "second" in this application is 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.
[0082] This utility model provides an intelligent safety belt for workers to wear when performing high-altitude operations.
[0083] like Figure 1 As shown, the intelligent safety belt involved in this application includes a safety belt body 10, a safety rope 20, and a safety hook 30. The safety belt body 10 is worn by the worker performing work at height. One end of the safety rope 20 is connected to a connecting ring 13 on the back of the safety belt body 10, which is preferably a D-ring. The other end of the safety rope 20 is connected to the safety hook 30, which is used to fasten to a fixed attachment point, such as a tripod or wire rope. The safety hook 30 in this application has multiple embodiments, all of which can detect whether the safety hook 30 is opening or closing and whether it is fastened to an attachment point, thereby identifying whether the safety hook 30 is being used. Several embodiments of the safety hook 30 are provided below.
[0084] Example 1 of safety hook 30
[0085] like Figure 2As shown, one embodiment of the safety hook 30 includes a hook body 31, a hook latch 33, a switch trigger 35, a first limit switch 36, and a second limit switch 37. The hook body 31 is connected to the safety rope 20, thereby connecting the safety hook 30 as a whole to the end of the safety rope 20. The hook body 31 is generally hook-shaped, and a hook opening 302 is formed between its two ends. The hook latch 33 is hinged to one end of the hook body 31 via a first connecting shaft 32. The hook latch 33 rotates relative to the hook body 31 around the first connecting shaft 32 to open or close the hook opening 302. The end of the hook body 31 away from the first connecting shaft 32 is provided with a hook abutment 301, and the end of the hook latch 33 away from the first connecting shaft 32 is provided with a latch abutment 331. When the safety hook 30 is in the closed state, the latch abutment 331 abuts against the hook abutment 301, and the hook latch 33 closes the hook opening 302. The switch trigger 35 is hinged to the hook body 31 via the second connecting shaft 34. There is a gap between the switch trigger 35 and the hook body 31, which allows the switch trigger 35 and the hook body 31 to rotate relative to each other around the second connecting shaft 34. The first connecting shaft 32 and the second connecting shaft 34 are parallel and both extend horizontally along the thickness direction of the hook body 31. The first limit switch 36 is fixed at the hook abutment portion 301 at the end of the hook body 31, and the second limit switch 37 is fixed on the hook body 31 and disposed close to the second connecting shaft 34.
[0086] The safety hook 30 is also equipped with a spring mechanism connecting the hook body 31 and the hook locking tongue 33. Under no external force, the spring mechanism applies a force to the hook locking tongue 33 towards the hook abutment portion 301, causing the locking tongue abutment portion 331 to abut against the hook abutment portion 301, thus blocking the hook opening 302. The safety hook 30 is in a normally closed state. Figure 2Taking the view angle shown as an example, when the operator applies force to rotate the hook locking tongue 33 clockwise around the first connecting shaft 32, the locking tongue abutment part 331 separates from the hook abutment part 301, the hook locking tongue 33 no longer blocks the hook opening part 302, the hook opening part 302 is opened, and the safety hook 30 switches from the closed state to the open state. At this time, the hook body 31 can be fastened to the hooking point. Afterwards, when the operator releases the hook locking tongue 33, the hook locking tongue 33 rotates counterclockwise around the first connecting shaft 32 under the action of the spring mechanism. The locking tongue abutment part 331 rotates toward the hook abutment part 301 until the two abut against each other, and the safety hook 30 switches from the open state to the closed state. When the locking tongue abutment part 331 abuts against the hook abutment part 301 again, the first limit switch 36 is triggered by the locking tongue abutment part 331. Furthermore, when the safety hook 30 is fastened to the hanging point, under the action of the safety rope 20 and the hanging point, the switch trigger 35 rotates around the second connecting shaft 34 relative to the hook body 31, and the second limit switch 37 and the switch trigger 35 move closer to each other. When the relationship between the two changes, the second limit switch 37 is triggered by the switch trigger 35.
[0087] Therefore, in the intelligent safety belt, each opening and closing of the safety hook 30 triggers the first limit switch 36, allowing the signal from the first limit switch 36 to identify the opening and closing action of the safety hook 30. After the safety hook 30 is fastened to the attachment point, the second limit switch 37 is triggered when the switch trigger 35 rotates relative to the hook body 31. The signal from the second limit switch 37 then identifies whether the safety hook 30 is fastened to the attachment point, i.e., whether the safety hook 30 is being used. Ultimately, this application, through the feedback from the first limit switch 36 and the second limit switch 37, can effectively identify whether there is a violation of the safety belt being unattached during high-altitude operations, facilitating safety management by managers and improving the safety of high-altitude operations. In particular, the use of limit switches for detection significantly reduces the cost of the intelligent safety belt.
[0088] Preferably, such as Figure 2 As shown, the switch trigger 35 is a protective cover fitted around the hook body 31, housing both the first limit switch 36 and the second limit switch 37. While triggering the second limit switch 37, the switch trigger 35 also protects the first and second limit switches 36 and 37. Furthermore, as... Figure 2 As shown, the second connecting shaft 34 and the second limit switch 37 are both located near the hook abutment part 301.
[0089] Furthermore, such as Figure 2As shown, the hook latch 33 has a sheet-like structure. Furthermore, the first embodiment of the safety hook 30 also includes a secondary locking plate 39 hinged to the hook body 31 via a third connecting shaft 38, and a third limit switch 311 fixed to the secondary locking plate 39. The hook latch 33 has an arc-shaped limiting groove 310, and a limiting shaft 312 is fixed on the secondary locking plate 39. The limiting shaft 312 passes through the arc-shaped limiting groove 310 and the two slide in cooperation. Both the third connecting shaft 38 and the limiting shaft 312 are parallel to the first connecting shaft 32 and the second connecting shaft 34. The hook body 31 is fixed with trigger protrusions 303 distributed on the inner end side of the secondary locking plate 39. When the safety hook 30 switches from the open state to the closed state, the secondary locking plate 39 drives the third limit switch 311 to rotate toward the trigger protrusions 303, and finally, the third limit switch 311 is triggered by the trigger protrusions 303. Therefore, each time the safety hook 30 is opened or closed, the third limit switch 311 is also triggered. The opening and closing action of the safety hook 30 can also be identified through the signal of the third limit switch 311. The combination of the first limit switch 36 and the third limit switch 311 can more reliably detect whether the safety hook 30 has opened, thus improving the accuracy of identifying whether there is a seat belt hanging unattached.
[0090] Example 2 of safety hook 30
[0091] The difference between Embodiment 2 of the safety hook 30 and Embodiment 1 lies only in the placement of the second connecting shaft 34 and the second limit switch 37 on the hook body 31. In Embodiment 2 of the safety hook 30, as... Figure 3 As shown, the second connecting shaft 34 and the second limit switch 37 are both located at the end of the switch trigger 35 away from the hook abutment 301. In this case, an elastic element 313 is preferably fixed on the inner wall of the switch trigger 35. The elastic element 313 is a spring or an elastic body. After the safety hook 30 of the smart seat belt is fastened on the hanging point, the switch trigger 35 triggers the second limit switch 37 through the elastic element 313.
[0092] Example 3 of safety hook 30
[0093] The difference between Embodiment 3 and Embodiment 1 of Safety Hook 30 is only that: Figure 4 As shown, in Embodiment 3 of the safety hook 30, the secondary locking plate 39, the related structure connected to the secondary locking plate 39, and the third limit switch 311 of the safety hook 30 in Embodiment 1 are eliminated, and the hook lock tongue 33 is a cylindrical structure.
[0094] Example 4 of safety hook 30
[0095] The only difference between Embodiment 4 of the safety hook 30 and Embodiment 1 is that the structure of the switch trigger 35 is different. In Embodiment 4 of the safety hook 30, as... Figure 5As shown, the switch trigger 35 is a pressure plate, which is arranged side by side with the hook body 31 in the thickness direction of the hook body 31. At the top of the hook body 31, the lower end of the hook body 31 is higher than the lower end of the switch trigger 35, and the second limit switch 37 is located below the end of the switch trigger 35. Thus, when the safety hook 30 is fastened to the hanging point, the hanging point applies an upward force to the switch trigger 35, and the switch trigger 35 rotates clockwise around the second connecting shaft 34. As a result, the end of the switch trigger 35 rotates downward, approaches and triggers the second limit switch 37.
[0096] Example 5 of safety hook 30
[0097] The difference between Embodiment 5 of the safety hook 30 and Embodiment 4 of the safety hook 30 lies only in the connection structure between the hook body 31 and the switch trigger 35. In Embodiment 5 of the safety hook 30, as... Figure 6 As shown, the second connecting shaft 34 is vertically arranged and adopts a guide rail form. The switch trigger 35 is movably mounted on the hook body 31 via the second connecting shaft 34, and the second limit switch 37 is located on the upper side of the hook body 31. Thus, when the safety hook 30 is fastened to the hanging point, the hanging point applies an upward force to the switch trigger 35, causing the switch trigger 35 to move upward along the second connecting shaft 34, and the switch trigger 35 approaches and triggers the second limit switch 37.
[0098] Example 6 of safety hook 30
[0099] The difference between Embodiment Six of the Safety Hook 30 and Embodiment Four of the Safety Hook 30 lies only in the connection structure between the hook body 31 and the switch trigger 35. In Embodiment Six of the Safety Hook 30, as... Figure 7 As shown, the second connecting shaft 34 also adopts a guide rail form. The end of the switch trigger 35 away from the hook abutment 301 is connected to the second connecting shaft 34 through an elastic element 313, which is a spring or elastic body. When the safety hook 30 is fastened to the hanging point, the hanging point applies an upward force to the switch trigger 35. The switch trigger 35 rotates clockwise relative to the second connecting shaft 34 due to the elastic force of the elastic element 313. Then, the end of the switch trigger 35 rotates downward, approaches and triggers the second limit switch 37.
[0100] Furthermore, such as Figure 1As shown, the smart seat belt also includes an electronic control box 40 fixed to the seat belt body 10. The electronic control box 40 contains a connected battery and a microcontroller. The microcontroller is connected to the first limit switch 36 and the second limit switch 37 in the aforementioned safety hook 30 embodiments via wires 50. The battery in the electronic control box 40 provides power, and the microcontroller collects feedback data from the first limit switch 36 and the second limit switch 37. The microcontroller is connected to the first limit switch 36, the second limit switch 37, and the third limit switch 311 via wires 50. This structure has low cost and helps to further reduce the cost of the smart seat belt.
[0101] Preferably, the smart safety belt can be equipped with an alarm on the main body 10, which is also connected to a microcontroller via a wire 50. When the microcontroller determines, based on feedback from the first limit switch 36 and the second limit switch 37, that there is a violation of the safety belt being unattached, it triggers the alarm, achieving local alarm functionality. Of course, the microcontroller is also wirelessly connected to a remote management platform. Simultaneously with triggering the alarm, the microcontroller sends the alarm signal to the remote management platform, thereby achieving real-time monitoring and remote supervision. This allows managers to better understand the construction site situation and ensures that problems are addressed and resolved promptly.
[0102] Furthermore, such as Figure 8 and Figure 9 As shown, the intelligent safety belt also includes an angle detector 60, which is an angle sensor or angle switch; a rope detection section 21 is provided on the safety rope 20, and the angle detector 60 is fixed on the rope detection section 21. The angle detector 60 is connected to the microcontroller via a wire 50. The rope detection section 21 on the safety rope 20 should meet the following requirement: when the safety hook 30 is suspended high, if... Figure 4 As shown, the rope detection section 21 is in a vertical position, and the smart safety belt is in the correct high-hanging, low-use state. When the safety hook 30 is low-hanging, as... Figure 5 As shown, the rope detection section 21 is in a horizontal state, and the smart safety belt is in an incorrect low-attachment, high-use state. Therefore, the angle of the angle detector 60 is different in the high-attachment, low-use and low-attachment, high-use states of the smart safety belt. The microcontroller can accurately identify whether the smart safety belt is in a low-attachment, high-use violation through the feedback from the angle detector 60. When the violation is identified, the microcontroller triggers local and remote alarms.
[0103] Furthermore, the intelligent safety belt also includes a vibration detector, which is either a vibration sensor or a vibration switch. The vibration detector is fixed to the main body 10 of the safety belt and is connected to the microcontroller via a wire 50. In some special working environments, workers at heights are more prone to fatigue, but ground safety personnel cannot know the details of their physical condition. In this case, the vibration detector provides real-time feedback on the swaying frequency data of the workers at heights, combined with the real-time feedback on the human body angle data from the angle detector 60, allowing ground safety personnel to better understand the physical condition of the workers at heights and provide timely guidance. For example, from the start of the workday in the morning to the end of the workday in the evening, a person's physical strength will decrease over time, and the swaying frequency will gradually decrease, which is a normal state. However, if there is a prolonged period of abnormally rapid fluctuations during evening work, exceeding the highest swaying frequency in the morning, it indicates an increased probability of work accidents, and the microcontroller triggers local and remote alarms. Another example: if the feedback data from the vibration detector indicates that the worker's stillness time exceeds the set maximum stillness time, it indicates potential danger or excessive fatigue, requiring inspection, and the microcontroller triggers local and remote alarms. For example, based on feedback data from the vibration detector, it is determined that the worker's daily working frequency is much higher than the average value, indicating an increased probability of an accident. The microcontroller then triggers local and remote alarms.
[0104] Furthermore, such as Figure 1 As shown, the smart seatbelt also includes a detection switch 80. The seatbelt body 10 has a left waist belt 11, a right waist belt 12, and a buckle 70 connecting the left waist belt 11 and the right waist belt 12. The detection switch 80 is integrated into the buckle 70 and is connected to a microcontroller via a wire 50. When the buckle 70 is fastened, the left waist belt 11 and the right waist belt 12 are connected together, and the detection switch 80 is triggered. When the buckle 70 is unfastened, the left waist belt 11 and the right waist belt 12 are disconnected, and the detection switch 80 is not triggered. Therefore, the microcontroller detects the real-time connection status of the left waist belt 11 and the right waist belt 12 through the signal from the detection switch 80, thereby reliably identifying whether there is a violation of not wearing a seatbelt. When the microcontroller identifies that no seatbelt is being worn based on the feedback from the detection switch 80, the microcontroller triggers a local alarm and a remote alarm. In addition, the detection switch 80 is connected to the microcontroller via the wire 50, reducing costs.
[0105] Furthermore, the waist buckle 70 can take many forms, and the detection switch 80 can be integrated on the waist buckle 70 in various ways, resulting in multiple embodiments of the waist buckle 70 in this application. Several preferred embodiments of the waist buckle 70 are provided below.
[0106] Example 1 of waist buckle 70 Figure 10As shown, the waist buckle 70 includes a lock body 71 and a connecting lock piece 72 that is inserted into the lock body 71. The lock body 71 and the connecting lock piece 72 are respectively fixed to the ends of the left waist belt 11 and the right waist belt 12, and the lock body 71 and the connecting lock piece 72 are detachably connected. The detection switch 80 is a limit switch and is integrated on the end face of the connecting lock piece 72 facing the lock body 71. When the connecting lock piece 72 is inserted into the lock body 71 and locked, the limit switch constituting the detection switch 80 abuts against the lock body 71 and is triggered by the lock body 71, thereby detecting whether the left waist belt 11 and the right waist belt 12 are connected.
[0107] The difference between Embodiment 2 of the waist buckle 70 and Embodiment 1 of the waist buckle 70 is as follows: Figure 11 As shown, the limit switch constituting the detection switch 80 is fixed on the connecting locking plate 72, and the lock body 71 has a guide slope 73 at one end near the connecting locking plate 72. When the connecting locking plate 72 is inserted into the lock body 71 and locked, the limit switch constituting the detection switch 80 abuts against the lock body 71 and is triggered by the lock body 71; when the connecting locking plate 72 is inserted into the lock body 71 but not locked, the limit switch constituting the detection switch 80 faces the guide slope 73 but does not contact the lock body 71, so the limit switch is not triggered. In this way, it is possible to detect whether the left waist belt 11 and the right waist belt 12 are connected.
[0108] The difference between Embodiment 3 of the waist buckle 70 and Embodiment 1 of the waist buckle 70 is as follows: Figure 12 As shown, the limit switch constituting the detection switch 80 is fixed in the lock body 71. When the connecting locking plate 72 is inserted into the lock body 71 and locked, the limit switch constituting the detection switch 80 abuts against the connecting locking plate 72 and is triggered by the connecting locking plate 72; when the connecting locking plate 72 is inserted into the lock body 71 but not locked, the limit switch does not contact the connecting locking plate 72 and will not be triggered. In this way, it is possible to detect whether the left waist belt 11 and the right waist belt 12 are connected.
[0109] The difference between Embodiment 4 of the waist buckle 70 and Embodiment 2 of the waist buckle 70 is as follows: Figure 13 As shown, the limit switch constituting the detection switch 80 is fixed to the lock body 71, and the connecting locking plate 72 has a guide slope 73 at one end near the lock body 71. When the connecting locking plate 72 is inserted into the lock body 71 and locked, the limit switch constituting the detection switch 80 abuts against the connecting locking plate 72 and is triggered by the connecting locking plate 72; when the connecting locking plate 72 is inserted into the lock body 71 but not locked, the limit switch constituting the detection switch 80 faces the guide slope 73 but does not contact the connecting locking plate 72, so the limit switch is not triggered. In this way, it is possible to detect whether the left waist belt 11 and the right waist belt 12 are connected.
[0110] The difference between Embodiment 5 of the Waist Buckle 70 and Embodiment 1 of the Waist Buckle 70 is as follows: Figure 14As shown, the limit switch constituting the detection switch 80 is fixed on the lock body 71, and a lock plate trigger 75 is fixed on the connecting lock plate 72. When the connecting lock plate 72 is inserted into the lock body 71 and locked, the limit switch constituting the detection switch 80 abuts against the lock plate trigger 75 and is triggered by the lock plate trigger 75, thereby detecting whether the left waist belt 11 and the right waist belt 12 are connected.
[0111] The difference between Embodiment 6 of the Waist Buckle 70 and Embodiment 1 of the Waist Buckle 70 is as follows: Figure 15 As shown, both the lock body 71 and the connecting lock plate 72 are metal parts and constitute a detection switch 80. The microcontroller is connected to the lock body 71 and the connecting lock plate 72 via the wire 50. When the connecting lock plate 72 is inserted into the lock body 71 and locked, the lock body 71 and the connecting lock plate 72 are electrically connected, equivalent to a circuit being connected; when the connecting lock plate 72 is separated from the lock body 71, it is equivalent to a circuit being disconnected. In this way, it is possible to detect whether the left waist belt 11 and the right waist belt 12 are connected.
[0112] The difference between Embodiment 70 of the waist buckle and Embodiment 6 of the waist buckle is as follows: Figure 16 As shown, the structure of the lock body 71 is different, and the lock body 71 has no internal cavity.
[0113] The difference between Embodiment 8 of the Waist Buckle 70 and Embodiment 6 of the Waist Buckle 70 is as follows: Figure 17 As shown, the lock body 71 and the connecting lock plate 72 are fastened together. The lock body 71 has a cross-shaped through groove 74 that allows the connecting lock plate 72 to pass through. The maximum width of the cross-shaped through groove 74 is greater than the width of the connecting lock plate 72, but the minimum width is less than the width of the connecting lock plate 72. Therefore, after the connecting lock plate 72 passes through the cross-shaped through groove 74, it can abut against the lock body 71. When the lock body 71 and the connecting lock plate 72 abut against each other, they are electrically connected, equivalent to a circuit being connected. When the connecting lock plate 72 is separated from the lock body 71, as... Figure 18 As shown, this is equivalent to the circuit being disconnected. Thus, it is possible to detect whether the left belt 11 and the right belt 12 are connected.
[0114] In embodiments six and eight of the waist buckle 70, after the lock body 71 and the connecting lock plate 72 are connected, their voltage is lower than the safe voltage of 36V, preferably lower than 24V. Furthermore, the microcontroller can be set to a detection frequency. During detection, the microcontroller is energized with the lock body 71 and the connecting lock plate 72; when not detecting, the microcontroller is disconnected from the lock body 71 and the connecting lock plate 72, thus de-energizing the lock body 71 and the connecting lock plate 72.
[0115] Furthermore, the limit switch involved in this application preferably adopts... Figure 19 The structure shown has a push-out length of more than 0.2mm in the limit switch, making it a long-stroke limit switch with a large detection range. At the same time, a rubber sleeve 90 is fixed on the switch body of the limit switch to achieve waterproof and dustproof protection and reduce the precision requirements of the installation parts.
[0116] In summary, the detection method for smart safety belts can be two-point detection: safety hook 30 combined with safety rope 20, or safety hook 30 combined with waist buckle 70; or three-point detection: safety hook 30, safety rope 20 and waist buckle 70 combined.
[0117] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.
[0118] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A smart safety belt, comprising a safety belt body (10), a safety rope (20) and a safety hook (30), wherein the safety hook (30) comprises a hook body (31) and a hook latch (33) hinged to the hook body (31) via a first connecting shaft (32), wherein the two ends of the safety rope (20) are respectively connected to the safety belt body (10) and the hook body (31), wherein the end of the hook body (31) has a hook abutment portion (301), and the end of the hook latch (33) has a latch abutment portion (331); characterized in that The safety hook (30) also includes a switch trigger (35) rotatably or movably mounted on the hook body (31) via a second connecting shaft (34), a first limit switch (36) fixed at the hook abutment (301), and a second limit switch (37) fixed to the hook body (31), the second limit switch (37) being disposed adjacent to the second connecting shaft (34); When the safety hook (30) switches from the open state to the closed state, the locking tongue abutment part (331) rotates toward the hook abutment part (301) until the two abut against each other, and the first limit switch (36) is triggered by the locking tongue abutment part (331); when the safety hook (30) is fastened on the hook point, the switch trigger (35) can contact the hook point and rotate or move relative to the hook body (31) along the second connecting shaft (34), and the second limit switch (37) is triggered by the switch trigger (35).
2. The smart seat belt of claim 1, wherein: The switch trigger (35) is a protective cover fitted around the hook body (31), and the first limit switch (36) and the second limit switch (37) are both housed inside the protective cover.
3. The smart seat belt of claim 1, wherein: The switch trigger (35) is a pressure plate, and the pressure plate and the hook body (31) are arranged side by side in the thickness direction of the hook body (31).
4. The smart seat belt of claim 1, wherein: It also includes an electrical control box (40) fixed to the seat belt body (10), the electrical control box (40) is equipped with a connected battery and a microcontroller, the microcontroller is connected to a first limit switch (36) and a second limit switch (37) via wires (50).
5. The smart seat belt of claim 4, wherein: The safety hook (30) also includes a secondary locking piece (39) hinged to the hook body (31) via a third connecting shaft (38), and a third limit switch (311) fixed to the secondary locking piece (39). The hook latch (33) has an arc-shaped limiting groove (310). A limiting shaft (312) is fixed on the secondary locking piece (39). The limiting shaft (312) passes through the arc-shaped limiting groove (310) and the two slide together. The third limit switch (311) is connected to a microcontroller via a wire (50). A trigger protrusion (303) is fixed on the hook body (31). When the safety hook (30) switches from the open state to the closed state, the secondary locking piece (39) drives the third limit switch (311) to rotate toward the trigger protrusion (303), and the third limit switch (311) is triggered by the trigger protrusion (303).
6. The smart seat belt of claim 4, wherein: It also includes an angle detector (60), a rope detection section (21) is provided on the safety rope (20), the angle detector (60) is fixed on the rope detection section (21), and the angle detector (60) is connected to the microcontroller through a wire (50); When the safety hook (30) is suspended, the rope detection section (21) is in a vertical position; When the safety hook (30) is low-hanging, the rope detection section (21) is in a horizontal state.
7. The intelligent seat belt according to claim 6, characterized in that: The angle detector (60) is an angle sensor or an angle switch.
8. The smart seat belt of claim 4, wherein: It also includes a vibration detector, which is fixed to the seat belt body (10) and connected to the microcontroller via a wire (50).
9. The smart seat belt of claim 8, wherein: The vibration detector is a vibration sensor or a vibration switch.
10. The smart seat belt of claim 4, wherein: The seat belt body (10) has a left waist belt (11), a right waist belt (12), and a waist buckle (70) connecting the left waist belt (11) and the right waist belt (12). The waist buckle (70) integrates a detection switch (80), which is connected to a microcontroller via a wire (50). When the waist buckle (70) is fastened, the detection switch (80) is triggered.