A seat belt unbuckling assembly and an unbuckling alarm device

Abstract

The application relates to the technical field of high-altitude operation safety protection, and discloses a safety belt disengagement assembly and a disengagement alarm device, which comprise a disengagement sensing module, the disengagement sensing module comprises a shell, a hanging hole for mounting a hook is arranged through the shell in a direction perpendicular to the surface of the shell, and a connecting hole connected with a connecting belt is arranged, a first recess and a second recess are arranged in the shell and are communicated with the hanging hole, the second recess is communicated with the first recess, a pressing block is slidably connected in the first recess, the first recess is provided with two third recesses for accommodating corresponding bottom foot portions, a travel switch is arranged in the second recess, and the pressing block drives the push rod of the travel switch to move when moving towards the bottom of the hanging hole or moving away from the bottom of the hanging hole. The spring is used in the disengagement sensing module of the application, the spring can press the safety belt hook and the hanging hole, tight connection is guaranteed, and false alarms are avoided when the device is moved during personnel operation.

Description

Technical Field

[0001] This invention relates to the field of safety protection technology for high-altitude operations, specifically to a safety belt disengagement component and a disengagement alarm device. Background Technology

[0002] In the power industry, working at heights is an essential skill and daily task for every employee, so the use of safety belts has entered a new era. Currently, most work at heights in the power industry uses full-body safety belts, which mainly consist of: a pole harness, a backup safety rope, a shock absorber, a waist belt, shoulder straps, and leg straps. Therefore, the correct use of safety belts and whether or not they are used at all are of great importance.

[0003] Existing methods for detecting whether safety belts are in use and whether they are being used correctly typically include two types: manual inspection and safety belt alarms. One method involves supervisors manually checking whether safety belts are being used safely at heights. This is simple and quick, requiring no additional equipment. However, due to the numerous and widespread locations at work sites, and the height of the work area, it can be difficult for inspectors on the ground to see clearly, resulting in low accuracy and compromising the safety of workers at heights. The second method involves monitoring the real-time status of the safety belt during use and triggering alarms, primarily focusing on both the safety belt itself and its usage. For the safety belt itself, the main focus is on checking for deformation under stress and looseness. However, safety belts used at construction sites must pass inspection by a power testing center, so issues with the safety belt itself are almost nonexistent. Therefore, current research focuses primarily on detecting the use of the safety belt, mainly checking whether it is being used. Patent CN202122152408.9 detects the tilt angle during use. When the safety belt is not in use, the sensor tilt angle is negative, the switch closes, the circuit is connected, and an alarm is triggered. When the safety belt is normally in use (high-mounted, low-hanging), the sensor tilt angle is positive, and the switch opens. However, changes in tilt angle during movement can easily cause false alarms. Patent CN202111529816.X detects whether the metal hook and the hanging ring are in good contact. Similarly, during movement, poor contact between the metal hook and the metal hanging ring may occur, resulting in false alarms or delayed alarms.

[0004] At the same time, different types of safety belts are used depending on the job content. Safety belts can be single-waist or vest-style, and different types of safety belts are equipped with different types of hooks. If workers configure the safety belt and hooks incorrectly, it will also cause safety hazards. Summary of the Invention

[0005] This invention provides a safety belt disengagement component and a disengagement alarm device, which aims to detect whether the safety belt is disengaged during use. Based on the principle of wire breakage alarm, it is necessary to conduct safety checks on whether the safety belt is being used correctly during the use of safety belts by workers at heights.

[0006] This invention is achieved through the following technical solution:

[0007] A seatbelt disengagement component, comprising:

[0008] A trip protection sensor module includes a housing. A hanging hole for mounting a hook and a connecting hole for connecting a connecting strap are provided perpendicular to the housing surface and extending through the housing. The housing contains a first groove and a second groove. The bottom of the first groove matches the shape and position of the hanging hole and communicates with it. The second groove communicates with the first groove. A pressure block is slidably connected within the first groove. The pressure block is an inverted "U" shape composed of two base parts and a connecting block connecting the two base parts. The first groove has two third grooves for accommodating the corresponding base parts. The two third grooves are symmetrically located on both sides of the hanging hole. The maximum distance between the bottom of the connecting block and the bottom of the hanging hole is less than the diameter of a portion of the hook passing through the hanging hole, and the diameter of the portion of the hook passing through the hanging hole is not greater than the diameter of the hanging hole. A limit switch is provided within the second groove. When the pressure block moves towards or away from the bottom of the hanging hole, it drives the push rod of the limit switch to move.

[0009] The hook includes a connecting part for connecting to the differential protection mechanism via a safety rope. The connecting part is arched. A fixed rod is fixedly connected to the first end of the connecting part. A gap is provided between the side of the fixed rod away from the first end of the connecting part and the second end of the connecting part for the disengagement sensing module to pass through. A movable rod that can automatically reset is rotatably connected to the second end of the connecting part. The connecting part, the fixed rod, and the movable rod form a ring-shaped hook.

[0010] As an optimization, the length of the second end of the connecting part is greater than the length of the movable rod, and a first receiving groove for accommodating the movable rod is provided in the second end of the connecting part. The side of the movable rod near the fixed rod is provided with a second receiving groove for accommodating the fixed rod. The movable rod can rotate relative to the fixed rod. When there is no external force, the fixed rod is located in the second receiving groove. The side of the movable rod away from the second end of the connecting part contacts the side wall of the first end of the connecting part when there is no external force. The thickness and width of the fixed rod are both less than the maximum distance between the bottom of the connecting block and the bottom of the hanging hole. The width and thickness of the connecting part and the width and thickness of the movable rod are both greater than the maximum distance between the bottom of the connecting block and the bottom of the hanging hole. The shapes of the movable rod and the connecting part match the shapes of the bottom of the hanging hole and the connecting block.

[0011] As an optimization, a limiting plate 3 is provided in the first groove. The limiting plate 3 is fixedly connected to the inner surface of the housing. The side of the connecting block near the limiting plate 3 is provided with a first sliding groove that matches the limiting plate 3. The limiting plate 3 is slidably disposed in the first sliding groove. It also includes a first return spring. One end of the first return spring is fixedly connected to the side of the connecting block away from the bottom foot, and the other end of the first return spring is fixedly connected to the side of the first groove away from the third groove.

[0012] As an optimization, the connecting block is provided with a toggle block on the side near the second groove. The limit switch is fixedly installed in the second groove, and the push rod of the limit switch is located on the side near the pressure block. When the pressure block is in the reset state, the limit switch is in the 0 displacement state. The toggle block is located below the push rod and is in contact with the push rod.

[0013] As an optimization, a second return spring is also provided on the side of the limit switch near the pressure block. One end of the second return spring is fixedly connected to the side wall of the second groove, and the other end of the second return spring is fixedly connected to the push rod of the limit switch.

[0014] As an optimization, the connecting part is provided with a safety hole for connecting with a safety rope. The safety hole is located between the first end and the second end of the connecting part. A fixing block is fixedly connected to the side wall of the first end of the connecting part. The fixing block is located directly above the fixing rod. The side of the movable rod away from the second end of the connecting part is stepped, so that the side of the movable rod away from the second end of the connecting part contacts the fixing rod and the fixing block respectively.

[0015] As an optimization, the side of the movable rod furthest from the second end of the connecting part and in contact with the side wall of the first end of the connecting part is recessed inward with a second groove. A slider is slidably disposed in the second groove. A third return spring is disposed between the slider and the bottom of the second groove. A limit ring is disposed at the opening of the second groove. The inner diameter of the limit ring is smaller than the diameter of the slider. A rubber plug is fixedly connected to the side of the slider furthest from the third return spring. A channel is provided penetrating the side wall of the first end of the connecting part. When there is no external force on the movable rod, the rubber plug is located in the channel, and the diameter of the channel extends from the side of the first end of the connecting part near the second end of the connecting part to the... The first end of the connector gradually narrows in the direction away from the second end of the connector. A connecting rod is slidably disposed in the channel. The shape of the connecting rod matches the shape of the channel, and the diameter of the end of the connecting rod near the second end of the connector is larger than the diameter of the end of the channel away from the second end of the connector. A stop is fixedly connected to the end of the connecting rod away from the second end of the connector. A countersunk hole is provided on the side of the first end of the connector away from the second end of the connector. The countersunk hole is coaxially connected to the channel, and the size of the countersunk hole matches that of the stop. Along the axial direction of the connecting rod, the sum of the length of the connecting rod and the length of the stop is equal to the thickness of the first end of the connector.

[0016] This invention also discloses a safety harness disengagement alarm device, comprising a disengagement sensing module from the aforementioned safety harness disengagement assembly, and further comprising a connecting strap and a connecting buckle. The disengagement sensing module is connected to the connecting buckle via the connecting strap. The connecting buckle is detachably connected to the safety harness buckle. The safety harness buckle is connected to the safety harness buckle worn by the worker. An alarm system is provided on the connecting strap. The alarm system includes a judgment module, a switch signal input module, a control module, a positioning module, a communication module, and a buzzer. The disengagement sensing module is connected to the input terminal of the judgment module via the switch signal input module. The output terminals of the judgment module and the positioning module are connected to the input terminal of the control module. The output terminal of the control module is connected to a terminal and a server respectively via the communication module.

[0017] The switch signal input module is used to acquire the displacement of the push rod of the limit switch;

[0018] The positioning module is used to locate the protection failure alarm device;

[0019] The judgment module is used to determine whether an alarm is needed based on the displacement of the push rod. If so, it sends a trigger signal to the control module, which then sends a corresponding alarm signal to the buzzer or transmits it to the terminal via the communication module. At the same time, the control module combines the time information of the alarm signal with the positioning information of the positioning module and transmits it to the server via the communication module.

[0020] As an optimization, a QR code is provided on the housing, which is connected to a login module. The login module is used to log in the personal information, emergency contact, and seat belt type of the person using the safety alarm device.

[0021] As an optimization, the specific process by which the judgment module determines whether an alarm is needed based on the displacement of the push rod is as follows:

[0022] S1. Determine whether the displacement of the limit switch is greater than 0. If yes, proceed to S2; otherwise, determine that the displacement of the limit switch does not meet the standard and proceed to S3.

[0023] S2. Determine whether the displacement of the limit switch is equal to the thickness of the corresponding hook of the connected seat belt. If yes, do not alarm; otherwise, determine that the displacement of the limit switch is insufficient and proceed to S3.

[0024] S3. If the time during which the displacement does not meet the standard is greater than the first time threshold, a telephone alarm trigger signal is sent to the control module, and the control module sends a telephone alarm signal to contact the emergency contact person through the communication module; otherwise, an audible alarm trigger signal is sent to the control module, and the control module sends an audible alarm signal through the buzzer.

[0025] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0026] The safety belt release sensing module of this invention uses a spring, which can press the safety belt hook and the hanging ring to ensure a tight connection and prevent false alarms when personnel move during operation. The technology has a certain degree of advancement.

[0027] In addition, the remote alarm function included in this invention can remotely send alarm information to a preset alarm phone number at any time. At the same time, alarm information can also be viewed at any time on the official account, the corresponding personnel and location of the alarm device can be identified, and personnel can be promptly reminded to take protective measures. In the case of multiple and wide construction sites, it can effectively improve the efficiency of inspection personnel.

[0028] In light of the current severe safety situation, this invention is simple to operate, effective, and reliable. It can effectively reduce safety hazards in high-altitude operations, promptly detect unsafe behaviors of personnel on construction sites, reduce the risk of violations, and protect the safety of workers. It is of great significance for ensuring the safety of workers at heights and has good application prospects.

[0029] This invention determines whether the corresponding hook is correctly connected based on the displacement of the limit switch and the type of seat belt, which can avoid safety hazards caused by incompatibility between the hook and the seat belt. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of a protection failure alarm device according to the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of the off-grid sensing module;

[0033] Figure 3 for Figure 2 Schematic diagram of the middle shell structure;

[0034] Figure 4 This is a schematic diagram of the structure of the pressure block;

[0035] Figure 5 for Figure 4 Top view;

[0036] Figure 6 This is a schematic diagram of the hook structure;

[0037] Figure 7 for Figure 6 Enlarged diagram of A in the middle;

[0038] Figure 8 This is the right view of the connecting rod;

[0039] Figure 9 (a) to (b) are diagrams showing the movement process of the movable rod; (c) is a schematic diagram of the hook hanging on the shell.

[0040] Figure 10 This is a schematic diagram of the module connections for the alarm system;

[0041] Figure 11 This is a picture of the actual product of the protection trip alarm device;

[0042] Figure 12 This is the interface for viewing alarm records.

[0043] The attached diagram shows the markings and corresponding component names:

[0044] 1-Housing, 1a-First groove, 1b-Hanging hole, 1c-Third groove, 1d-Connecting hole, 1e-Second groove, 2-Pressure block, 2a-Connecting block, 2b-Bottom, 2c-Toggle block, 2d-First slide groove, 2e-First return spring, 3-Limit plate 3, 4-Limit switch, 4a-Push rod, 4b-Second return spring, 5-Hook, 5a-First end, 5b-Second end, 5c-Fixed rod, 5d-Modible rod. 5d1 - Second receiving groove, 5e - Safety hole, 5f - Second slide groove, 5g - Third return spring, 5h - Rubber plug, 5i - Limit ring, 5j - Slider, 6 - Fixing block, 7 - Connecting rod, 7a - Stop block, 8 - Seat belt buckle, 9 - Connecting buckle, 100 - Login module, 200 - Judgment module, 300 - Control module, 400 - Communication module, 500 - Positioning module, 600 - Switch signal input module, 610 - Disengagement sensor module, 700 - Buzzer, 800 - Terminal, 900 - Server. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0046] Example 1: A seatbelt disengagement component, such as Figure 2-3 As shown, it includes:

[0047] The release sensing module 610 includes a housing 1. A hanging hole 1b5 for mounting a hook 5 and a connecting hole 1d for connecting a connecting strap are provided perpendicularly to the surface of the housing 1 and extending through the housing 1. The housing 1 contains a first groove 1a and a second groove 1e. The bottom of the first groove 1a matches the shape and position of the hanging hole 1b, and the first groove 1a communicates with the hanging hole 1b. The second groove 1e communicates with the first groove 1a. A pressure block 2 is slidably connected within the first groove 1a. The pressure block 2 consists of two base portions 2b and a connecting block 2a connecting the two base portions 2b. The first groove 1a is inverted "concave" shape. It has two third grooves 1c for accommodating the corresponding bottom feet 2b. The two third grooves 1c are symmetrically located on both sides of the hanging hole 1b. The maximum distance l1 between the bottom of the connecting block 2a and the bottom of the hanging hole 1b is less than the diameter of the portion of the hook 5 passing through the hanging hole 1b, and the diameter of the portion of the hook 5 passing through the hanging hole 1b is not greater than the diameter of the hanging hole 1b. The second groove 1e is provided with a limit switch 4. When the pressure block 2 moves towards or away from the bottom of the hanging hole 1b, it drives the push rod 4a of the limit switch 4 to move.

[0048] like Figure 2 As shown, the bottom of the connecting block 2a is a downward concave arc, and the bottom of the hanging hole 1b is an upward concave arc. Since the third groove 1c is located on both sides of the hanging hole 1b, the arc of the bottom of the hanging hole 1b is larger than that of the bottom of the connecting block 2a. Since the maximum distance between the bottom of the connecting block 2a and the bottom of the hanging hole 1b is less than the diameter of the local part of the hook 5 passing through the hanging hole 1b, when the hook 5 passes through the hanging hole 1b, the pressure block 2 will be subjected to a force away from the bottom of the hanging hole 1b and move in a direction away from the bottom of the hanging hole 1b, thereby driving the push rod 4a of the limit switch 4 to move.

[0049] The release sensor module 610 is mainly used to detect whether the metal hook 5 and the metal ring are in good contact, and it is proposed to achieve this in the following way.

[0050] The displacement detection method involves the metal hook 5 being inserted into the hanging hole, which reduces the space in the hole and compresses the first return spring. When the hook 5 contacts the hanging hole, it presses against the first return spring, causing the push rod of the toggle limit switch to displace the limit switch.

[0051] The specific displacement of the limit switch is related to the thickness of the hook. Different hooks correspond to different displacements of the limit switch. For example, the safety rope of the single-waist type I suspension safety belt worn by the worker uses a small hook, while the safety rope of the vest type II suspension safety belt uses a large hook. Therefore, the hooks corresponding to the two types of safety belts are of different thicknesses, and the displacement of the limit switch when the hook is hung in the hanging hole will also be different.

[0052] like Figure 5-9 As shown, the hook 5 includes a connecting part for connecting to the differential protection mechanism via a safety rope. A fixed rod 5c is fixedly connected to the first end 5a of the connecting part. A gap is provided between the side of the fixed rod 5c away from the first end 5a and the second end 5b of the connecting part for the differential protection sensor module 610 to pass through. A movable rod 5d that can automatically reset is rotatably connected to the second end 5b of the connecting part. The connecting part, the fixed rod 5c, and the movable rod 5d form a ring-shaped hook 5. The automatic reset is achieved through a torsion spring mechanism, which is existing technology and will not be described in detail here. After automatic reset, the movable rod 5d contacts the upper surface of the fixed rod 5c.

[0053] When it is necessary to pass the hook 5 through the hanging hole 1b of the release sensor module 610, first lift the movable rod 5d, and the release sensor module 610 will pass through the gap (not shown in the figure) and enter the annular space of the hook 5. Then lower the movable rod 5d, and the release sensor module 610 will be connected to the annular hook 5.

[0054] Specifically, the length of the second end 5b of the connecting part is greater than the length of the movable rod 5d, and the second end 5b of the connecting part is provided with a first receiving groove (not shown in the figure) that completely accommodates the movable rod 5d. By setting the length of the second end 5b of the connecting part to be greater than the length of the movable rod 5d and the receiving groove, when the movable rod 5d needs to be rotated, it can be rotated into the first receiving groove.

[0055] The gap between the fixed rod 5c and the second end 5b of the connecting part is the same as the thickness of the housing 1. Thus, when the release sensor module 610 is to be passed through the gap, the surface of the housing 1 can be placed perpendicular to the axial direction of the fixed rod 5c, and then the release sensor module 610 is passed through the gap until the fixed rod 5c aligns with the hanging hole 1b. Then the fixed rod 5c is passed through the hanging hole 1b. Since the movable rod 5d is fully accommodated in the first receiving groove, the movable rod 5d will not affect the release sensor module 610 passing through the gap.

[0056] The side of the movable rod 5d away from the second end 5b of the connecting part contacts the side wall of the first end 5a of the connecting part without any external force. And without any external force (in the reset state), the fixed rod 5c is located within the second receiving groove 2d15d1. The movable rod 5d can rotate relative to the fixed rod 5c. That is, there is a certain distance between the bottom of the groove 5b of the second receiving groove 2d1 near the second end 5b of the connecting part and the end of the movable rod 5d near the second end 5b of the connecting part. This ensures that the movable rod 5d will not contact the fixed rod 5c when rotating. Thus, the fixed rod 5c can support the movable rod 5d1, preventing it from rotating downwards. Simultaneously, the lower surface of the movable rod 5d being flush with or extending beyond the lower surface of the fixed rod 5c allows the pressure block 2 to move when the hook 5 enters the hanging hole 1b, thereby displacing the limit switch 4.

[0057] The thickness and width of the fixed rod 5c are both less than the maximum distance between the bottom of the connecting block 2a and the bottom of the hanging hole 1b. The width and thickness of the connecting part and the width and thickness of the movable rod 5d are both greater than the maximum distance between the bottom of the connecting block 2a and the bottom of the hanging hole 1b. The shape of the movable rod 5d and the connecting part matches the shape of the bottom of the hanging hole 1b and the connecting block 2a.

[0058] The shape matching here means that if the shape of the hanging hole 1b and the connecting block 2a is arc-shaped, then the movable rod 5d is cylindrical, and the curvature of the side wall of the movable rod 5d is not greater than the curvature of the hanging hole 1b. If the shape of the hanging hole 1b and the connecting block 2a is rectangular, then the movable rod 5d and the connecting part are cuboids. It is best if the shape of the hanging hole 1b and the connecting block 2a is rectangular.

[0059] Thus, the thickness and width of the fixing rod 5c are both less than the maximum distance between the bottom of the connecting block 2a and the bottom of the hanging hole 1b. When the fixing rod 5c passes through the gap between the bottom of the connecting block 2a and the bottom of the hanging hole 1b, it will not cause the pressure block 2 to slide. At this time, the limit switch 4 will not be displaced. When the movable rod 5d is reset (i.e., after the fixing rod 5c is located in the second receiving groove 2d1), the release sensor module 610 measures the thickness and width of the connecting part of the hook 5 or the thickness and width of the movable rod 5d. Here, the thickness, such as Figure 3In the diagram, h1 (thickness of the first end 5a of the connecting part), h5 (thickness of the second end 5b of the connecting part), h2 (thickness of the movable rod 5d), h3 (thickness of the fixed rod 5c), h4 (thickness of the housing 1), l1 h3, where width refers to the distance in a direction perpendicular to both thickness and axial length. It should also be noted that the direction from the bottom of the pressure block 2 to the bottom of the hanging hole 1b is parallel to the thickness direction of the hook 5.<h1> Figure 9 As shown in (c), the bottom of the pressure block 2 contacts the side of the fixed rod 5c away from the connecting rod, and the bottom of the hanging hole 1b is connected to the side of the connecting rod away from the fixed rod 5c. Alternatively, the bottom of the pressure block 2 contacts the side of the connecting part away from the annular space, and the bottom of the hanging hole 1b contacts the side of the connecting part close to the annular space. In order to better prevent the hook 5 from rotating in the hanging hole 1b, a rubber block can be set in the middle of the bottom of the pressure block 2 to increase the friction between the pressure block 2 and the hook 5. If a rubber block is set, then l1 is the distance between the bottom of the rubber block and the bottom of the hanging hole.

[0060] In this embodiment, the rod-shaped components that make up the connecting part and the movable rod 5d are all cylindrical, so that the width and thickness are equal.

[0061] The connecting part is provided with a safety hole 5e for connecting with a safety rope. The safety hole 5e is located between the first end 5a and the second end 5b of the connecting part, that is, the safety hole 5e is directly opposite the movable rod 5d or the fixed rod 5c. In this case, when the hook 5 is hung on the hanging hole 1b in the disengagement sensing module 610, the bottom of the pressure block 2 contacts the side of the fixed rod 5c away from the movable rod 5d, and the bottom of the hanging hole 1b contacts the side of the movable rod 5d away from the fixed rod 5c.

[0062] A fixing block 6 is fixedly connected to the side wall of the first end 5a of the connecting part. The fixing block 6 is located directly above the fixing rod 5c. The side of the movable rod 5d away from the second end 5b of the connecting part is stepped, so that the side of the movable rod 5d 5c away from the second end 5b of the connecting part contacts the fixing rod 5c and the fixing block 6 respectively.

[0063] By setting the fixing block 6, the movable rod 5d can be better supported, which greatly reduces the force of the movable rod 5d on the fixed rod 5c and extends the service life of the movable rod 5d.

[0064] A second groove 5f is recessed inward on the side of the movable rod 5d that is away from the second end 5b of the connecting part and in contact with the side wall of the first end 5a of the connecting part. A slider 5j is slidably disposed in the second groove 5f. A third return spring 5g is disposed between the slider 5j and the bottom of the second groove 5f. A limit ring 5i is disposed at the opening of the second groove 5f. The inner diameter of the limit ring 5i is smaller than the diameter of the slider 5j. A rubber plug 5h is fixedly connected to the side of the slider 5j away from the third return spring 5g. A channel 5a1 is provided through the side wall of the first end 5a of the connecting part. When there is no external force on the movable rod 5d 5c, the rubber plug 5h is located in the channel 5a1. The diameter of the channel 5a1 gradually decreases from the side of the first end 5a of the connecting part near the second end 5b of the connecting part to the side of the first end 5a of the connecting part away from the second end 5b of the connecting part (from... Figure 7 (From left to right), a connecting rod 7 is slidably disposed within the channel 5a1, and the shape of the connecting rod 7 matches the shape of the channel 5a1 (from left to right). Figure 7 (The diameter gradually decreases from left to right), and the diameter of the end of the connecting rod 7 near the second end 5b of the connecting part is larger than the diameter of the end of the channel 5a1 away from the second end 5b of the connecting part. A stop block 7a is fixedly connected to the end of the connecting rod 7 away from the second end 5b of the connecting part. A countersunk hole (not shown in the figure) is provided on the side of the first end 5a of the connecting part away from the second end 5b of the connecting part. The countersunk hole is coaxially connected to the channel, and the size of the countersunk hole matches that of the stop block 7a. The stop block 7a can be snapped into the countersunk hole. Along the axial direction of the connecting rod 7, the sum of the length of the connecting rod 7 and the length of the stop block 7a is equal to the thickness of the first end 5a of the connecting part.

[0065] Thus, when the movable rod 5d is to be rotated, the connecting rod 7 must be pressed first to remove the rubber plug 5h from the through hole before the movable rod 5d can be rotated properly. At this time, the connecting rod 7 is also embedded in the first end 5a of the connecting part. The movable rod 5d can only be rotated by applying force in two different directions at the same time. Since the forces in these two different directions need to be applied at the same time, such a situation is almost impossible during high-altitude operations. Therefore, this can effectively prevent the movable rod 5d from rotating due to sudden force during high-altitude operations, thereby preventing the hook from slipping out of the hanging hole.

[0066] When the hook 5 is inserted into the disengagement sensing module 610, the movable rod 5d is located in the receiving groove. At this time, the connecting rod 7 and the stop block 7a are both located in the through hole. After the disengagement sensing module 610 enters the annular space, the connecting rod 7 and the stop block 7a will not affect the sliding of the disengagement sensing module 610 on the common structure after the connection part or the contact between the fixed rod 5c and the movable rod 5d. The reason for setting the stop block 7a is to prevent the connecting rod 7 from sliding out of the channel. Figure 7 As shown, since the diameters of both the channel and the connecting block 2a are set to be larger on the left and smaller on the right, and the diameter on the right side of the channel is smaller than the diameter on the left side of the connecting block 2a, the connecting block 2a will not slide out of the channel from the right. However, there is a risk that the connecting block 2a will slide out of the channel from the left. Therefore, a stop block 7a is set, the size of which matches the size of the right side of the channel. In this way, when the stop block 7a enters the channel, there will be friction with the channel, which will prevent the connecting block 2a from sliding out of the channel from the left. To increase the friction, the stop block 7a can be made of rubber.

[0067] A limiting plate 3 is provided in the first groove 1a. The limiting plate 3 is fixedly connected to the inner surface of the housing 1. The connecting block 2a has a first sliding groove 2d that matches the limiting plate 3 on one side near the limiting plate 3. The limiting plate 3 is slidably disposed in the first sliding groove 2d. It also includes a first return spring. One end of the first return spring is fixedly connected to the side of the connecting block 2a away from the bottom foot 2b, and the other end of the first return spring is fixedly connected to the side of the first groove 1a away from the third groove 1c.

[0068] The connecting block 2a has a toggle block 2c on the side near the second groove 1e. The limit switch 4 is fixedly installed in the second groove 1e. It can be fixed in the existing way, which will not be described in detail here. The push rod 4a of the limit switch 4 is located on the side near the pressure block 2. When the pressure block 2 is in the reset state, the limit switch 4 is in the 0 displacement state. The toggle block 2c is located below the push rod 4a and is in contact with the push rod 4a.

[0069] When the tripping sensor module 610 is inserted into the hook 5, the pressure block 2 is subjected to a force away from the bottom of the hanging hole 1b, causing it to move in that direction. This causes the toggle block 2c to also move in that direction, which in turn causes the push rod 4a of the limit switch 4 to move in that direction, thus displacing the limit switch 4. It should be noted that the direction of movement of the toggle block 2c must be consistent with the direction of movement of the push rod 4a of the limit switch 4. Therefore, if... Figure 3 As shown, the side wall of the pressure block 2 is inclined, so the limit switch 4 is also inclined accordingly.

[0070] It also includes a second return spring 4b disposed on the side of the limit switch 4 near the pressure block 2. One end of the second return spring 4b is fixedly connected to the side wall of the second groove 1e, and the other end of the second return spring 4b is fixedly connected to the push rod 4a of the limit switch 4.

[0071] By setting a second reset spring 4b, when the hook 5 is removed from the disengagement sensing module 610, the push rod 4a can be pulled back to the 0 displacement position by the second reset spring 4b.

[0072] like Figure 1 , 10 As shown in Figure 11, Embodiment 2 also discloses a safety belt derailment alarm device, including a safety belt derailment sensing module 610 from a safety belt derailment assembly in Embodiment 1, and further including a connecting strap 10 and a connecting buckle 9. The safety belt derailment sensing module 610 is connected to the connecting buckle 9 via the connecting strap 10. The connecting buckle 9 is detachably connected to a safety belt buckle 8. The safety belt buckle 8 is connected to the safety belt buckle worn by the worker. An alarm system is provided on the connecting strap 10. The alarm system includes a judgment module 200, a switch signal input module 600, a control module 300, a positioning module 500, a communication module 400, and a buzzer 700. The safety belt derailment sensing module 610 is connected to the input terminal of the judgment module 200 via the switch signal input module 600. The output terminals of the judgment module 200 and the positioning module 500 are connected to the input terminal of the control module 300. The output terminal of the control module 300 is connected to a terminal 800 and a server 900 via the communication module 400.

[0073] The switch signal input module 600 is used to acquire the displacement of the push rod 4a of the limit switch 4;

[0074] The positioning module 500 is used to locate the protection failure alarm device;

[0075] The judgment module 200 is used to determine whether an alarm is needed based on the displacement of the push rod 4a. If so, it sends a trigger signal to the control module 300. The control module 300 sends a corresponding alarm signal to the buzzer 700 or transmits it to the terminal 800 through the communication module 400. At the same time, the control module 300 combines the time information of the alarm signal with the positioning information of the positioning module 500 and transmits it to the server 900 through the communication module 400.

[0076] A QR code is provided on the housing 1. The QR code is connected to the login module 100. The login module 100 is used to log in the personal information, emergency contact and seat belt type of the person using the safety alarm device.

[0077] The thickness of the hook can be determined based on the type of seat belt.

[0078] The judgment module 200 is used to determine whether an alarm is needed based on the displacement of the push rod 4a. The specific process is as follows:

[0079] S1. Determine whether the displacement of the limit switch 4 is greater than 0. If yes, proceed to S2. Otherwise, determine that the displacement of the limit switch does not meet the standard and proceed to S3.

[0080] S2. Determine whether the displacement of the limit switch 4 is equal to the thickness of the hook corresponding to the connected seat belt. If yes, do not alarm; otherwise, determine that the displacement of the limit switch is not up to standard and jump to S3.

[0081] S3. If the time during which the displacement does not meet the standard is greater than the first time threshold, a telephone alarm trigger signal is sent to the control module 300, and the control module 300 sends a telephone alarm signal to contact the emergency contact person through the communication module 400. Otherwise, an audible alarm trigger signal is sent to the control module 300, and the control module 300 sends an audible alarm signal through the buzzer 700.

[0082] It should be noted that if a rubber block is installed, then in S2, determining whether the displacement of the limit switch is equal to the thickness of the hook can be defined as: determining whether the displacement of the limit switch is equal to the thickness of the hook * A, where A is a positive number greater than 1. The value of A depends on the thickness and deformation of the rubber block and can be a range, which will not be elaborated here.

[0083] The Buzzer 700 is mainly used to issue an alarm in a timely manner after receiving information that the seat belt has come loose or that the seat belt hook type is incompatible. It is an integrated electronic alarm that is powered by DC voltage and mainly includes two types.

[0084] The first is the piezoelectric buzzer 700, which mainly consists of a multivibrator, a piezoelectric buzzer element, an impedance matching circuit, a resonance box, and a housing. When the power is turned on (1.5-15V DC operating voltage), the multivibrator starts oscillating and outputs an audio signal of 100-500Hz, and the impedance matching circuit drives the piezoelectric buzzer element to produce sound.

[0085] Secondly, there is the electromagnetic buzzer 700, which consists of an oscillator, an electromagnetic coil, a magnet, a diaphragm, and a housing. When the power is turned on, the audio signal current generated by the oscillator passes through the electromagnetic coil, causing the coil to generate a magnetic field. The diaphragm vibrates periodically to produce sound under the interaction of the electromagnetic coil and the magnet.

[0086] The communication module 400 includes a wireless network communication module 400 and a telephone communication module 400, and the terminal 800 is a telephone.

[0087] The 400 telephone communication module sends alarm signals to mobile phones via the internet. This function can also be implemented through offline remote monitoring, achieved by inserting a 4G SIM card into the signal transmission module, which incurs data charges. Installation and operation are simple and flexible; simply powering on the device activates the network. Scanning the QR code on the device with your mobile phone and waiting approximately 30 seconds establishes the connection. After successful installation, if the device needs to be moved to another location, it will automatically connect to a mobile phone upon powering on, eliminating the need for reconnection.

[0088] Alarm information will be sent to server 900 along with the location signal for storage and easy viewing, such as... Figure 12 As shown.

[0089] The seatbelt release sensor module 610 consists of a metal housing, a spring, and a limit switch 4. When the seatbelt hook 5 is engaged, the spring is compressed, which in turn presses against the limit switch 4, causing the limit switch 4 to activate. This module converts the displacement signal between the hook 5 and the hanging ring into a switching signal.

[0090] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A seatbelt disengagement component, characterized in that, include: A trip protection sensor module includes a housing. A hanging hole for mounting a hook and a connecting hole for connecting a connecting strap are provided perpendicular to the housing surface and extending through the housing. The housing contains a first groove and a second groove. The bottom of the first groove matches the shape and position of the hanging hole and communicates with it. The second groove communicates with the first groove. A pressure block is slidably connected within the first groove. The pressure block is an inverted "U" shape composed of two base parts and a connecting block connecting the two base parts. The first groove has two third grooves for accommodating the corresponding base parts. The two third grooves are symmetrically located on both sides of the hanging hole. The maximum distance between the bottom of the connecting block and the bottom of the hanging hole is less than the diameter of a portion of the hook passing through the hanging hole, and the diameter of the portion of the hook passing through the hanging hole is not greater than the diameter of the hanging hole. A limit switch is provided within the second groove. When the pressure block moves towards or away from the bottom of the hanging hole, it drives the push rod of the limit switch to move. The hook is connected to the connection and then to the differential protection mechanism via a safety rope.

2. A seatbelt disengagement assembly according to claim 1, characterized in that, The hook includes a connecting part for connecting to the differential protection mechanism via a safety rope. The connecting part is arched. A fixed rod is fixedly connected to the first end of the connecting part. A gap is provided between the side of the fixed rod away from the first end of the connecting part and the second end of the connecting part for the disengagement sensing module to pass through. A movable rod that can automatically reset is rotatably connected to the second end of the connecting part. The connecting part, the fixed rod, and the movable rod form a ring-shaped hook. The length of the second end of the connecting part is greater than the length of the movable rod, and a first receiving groove for accommodating the movable rod is provided in the second end of the connecting part. The side of the movable rod near the fixed rod is provided with a second receiving groove for accommodating the fixed rod. The movable rod can rotate relative to the fixed rod. When there is no external force, the fixed rod is located in the second receiving groove. The side of the movable rod away from the second end of the connecting part contacts the side wall of the first end of the connecting part when there is no external force. The thickness and width of the fixed rod are both less than the maximum distance between the bottom of the connecting block and the bottom of the hanging hole. The width and thickness of the connecting part and the width and thickness of the movable rod are both greater than the maximum distance between the bottom of the connecting block and the bottom of the hanging hole. The shapes of the movable rod and the connecting part match the shapes of the bottom of the hanging hole and the connecting block.

3. A seatbelt disengagement assembly according to claim 1, characterized in that, A limiting plate is provided in the first groove, and the limiting plate is fixedly connected to the inner surface of the housing. The side of the connecting block near the limiting plate is provided with a first sliding groove that matches the limiting plate. The limiting plate is slidably disposed in the first sliding groove. The first return spring is also included. One end of the first return spring is fixedly connected to the side of the connecting block away from the bottom foot, and the other end of the first return spring is fixedly connected to the side of the first groove away from the third groove.

4. A seatbelt disengagement assembly according to claim 3, characterized in that, The connecting block has a toggle block on the side near the second groove. The limit switch is fixedly installed in the second groove, and the push rod of the limit switch is located on the side near the pressure block. When the pressure block is in the reset state, the limit switch is in the 0 displacement state. The toggle block is located below the push rod and is in contact with the push rod.

5. A seatbelt disengagement assembly according to claim 4, characterized in that, It also includes a second return spring disposed on the side of the limit switch near the pressure block, one end of the second return spring being fixedly connected to the side wall of the second groove, and the other end of the second return spring being fixedly connected to the push rod of the limit switch.

6. A seatbelt disengagement assembly according to claim 2, characterized in that, The connecting part is provided with a safety hole for connecting to a safety rope. The safety hole is located between the first end and the second end of the connecting part. A fixing block is fixedly connected to the side wall of the first end of the connecting part. The fixing block is located directly above the fixing rod. The side of the movable rod away from the second end of the connecting part is stepped, so that the side of the movable rod away from the second end of the connecting part contacts the fixing rod and the fixing block respectively.

7. A seatbelt disengagement assembly according to claim 6, characterized in that, A second groove is recessed inward on the side of the movable rod away from the second end of the connecting part and in contact with the side wall of the first end of the connecting part. A slider is slidably disposed in the second groove. A third return spring is disposed between the slider and the bottom of the second groove. A limit ring is disposed at the opening of the second groove. The inner diameter of the limit ring is smaller than the diameter of the slider. A rubber plug is fixedly connected to the side of the slider away from the third return spring. A channel is provided through the side wall of the first end of the connecting part. When there is no external force on the movable rod, the rubber plug is located in the channel, and the diameter of the channel extends from the side of the first end of the connecting part near the second end of the connecting part to the connecting part. The first end gradually narrows in the direction away from the second end of the connecting part. A connecting rod is slidably disposed in the channel. The shape of the connecting rod matches the shape of the channel, and the diameter of the end of the connecting rod near the second end of the connecting part is larger than the diameter of the end of the channel away from the second end of the connecting part. A stop is fixedly connected to the end of the connecting rod away from the second end of the connecting part. A countersunk hole is provided on the side of the first end of the connecting part away from the second end of the connecting part. The countersunk hole is coaxially connected to the channel, and the size of the countersunk hole matches that of the stop. Along the axial direction of the connecting rod, the sum of the length of the connecting rod and the length of the stop is equal to the thickness of the first end of the connecting part.

8. A protection trip alarm device, characterized in that, The device includes a safety belt disengagement sensing module as described in any one of claims 1-7, further comprising a connecting strap and a connecting buckle. The disengagement sensing module is connected to the connecting buckle via the connecting strap. The connecting buckle is detachably connected to the safety belt buckle. The safety belt buckle is connected to the safety belt buckle worn by the worker. An alarm system is provided on the connecting strap. The alarm system includes a judgment module, a switch signal input module, a control module, a positioning module, a communication module, and a buzzer. The disengagement sensing module is connected to the input terminal of the judgment module via the switch signal input module. The output terminals of the judgment module and the positioning module are connected to the input terminal of the control module. The output terminal of the control module is connected to a terminal and a server respectively via the communication module. The switch signal input module is used to acquire the displacement of the push rod of the limit switch; The positioning module is used to locate the protection failure alarm device; The judgment module is used to determine whether an alarm is needed based on the displacement of the push rod. If so, it sends a trigger signal to the control module, which then sends a corresponding alarm signal to the buzzer or transmits it to the terminal via the communication module. At the same time, the control module combines the time information of the alarm signal with the positioning information of the positioning module and transmits it to the server via the communication module.

9. The protection failure alarm device according to claim 8, characterized in that, A QR code is provided on the housing, and the QR code is connected to the login module. The login module is used to log in the personal information, emergency contact, and seat belt type of the person using the safety alarm device.

10. The protection failure alarm device according to claim 8, characterized in that, The specific process by which the judgment module determines whether an alarm is needed based on the displacement of the push rod is as follows: S1. Determine whether the displacement of the limit switch is greater than 0. If yes, proceed to S2; otherwise, determine that the displacement of the limit switch does not meet the standard and proceed to S3. S2. Determine whether the displacement of the limit switch is equal to the thickness of the hook corresponding to the connected seat belt. If yes, do not alarm; otherwise, determine that the displacement of the limit switch does not meet the standard and jump to S3. S3. If the time during which the displacement does not meet the standard is greater than the first time threshold, a telephone alarm trigger signal is sent to the control module, and the control module sends a telephone alarm signal to contact the emergency contact person through the communication module; otherwise, an audible alarm trigger signal is sent to the control module, and the control module sends an audible alarm signal through the buzzer.

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