A seat belt system

Abstract

A safety belt system comprises a safety belt, further comprising: a first fixing plate; a second fixing plate, opposite to one side of the first fixing plate; a rope tightener, installed between the first fixing plate and the second fixing plate; a safety rope, one end of which is buckled on the rope tightener, and the other end is connected with a hook, and the hook is buckled with the safety belt. The safety belt system of the application can quickly lock the length of the safety rope when the safety rope is under stress, such as when a person is tilted or shaken, to avoid position deviation caused by loose rope. Compared with the traditional safety belt which only relies on the fixing mode of knot or simple buckle, the locking structure of the rope tightener can ensure that the safety rope does not slide and does not lengthen in an emergency, and the movement range of the person is stable within the preset safety interval, to avoid the occurrence of safety accidents.

Description

Technical Field

[0001] This application relates to the field of safety protection equipment technology, and in particular to a seat belt system. Background Technology

[0002] A safety harness is a personal protective equipment worn directly on the body to restrict body movement and cushion the impact of a fall. It is a core component of fall protection in dangerous scenarios such as working at heights, climbing, and hoisting. By connecting the human body to a reliable anchor point, a safety harness can quickly stop the fall, absorb impact energy, and distribute the force to the body's most vulnerable parts, thereby avoiding or mitigating fall injuries.

[0003] A safety harness system includes anchor points, a safety harness, a safety rope, and hooks. During operation, these components form a complete chain: "human body → safety harness → hook → safety rope → hook → anchor point." However, traditional safety harnesses are prone to displacement or slippage during use, leading to safety risks. Utility Model Content

[0004] This application provides a seat belt system designed to address the technical problem of safety risks.

[0005] To solve the above-mentioned technical problems, the technical solution of this application is: a seat belt system, including a seat belt, and further including: First fixing plate; The second fixing plate is disposed on one side opposite to the first fixing plate; A rope tensioner is installed between the first fixing plate and the second fixing plate; The safety rope has one end fastened to the rope tensioner and the other end connected to a hook, which is connected to the safety belt buckle.

[0006] Optionally, the tensioner includes: A rotating disk is rotatably mounted on the inner side of the first fixed plate. A ratchet groove is provided on the rotating disk, and a fixed disk is provided in the ratchet groove. There is a gap between the outer periphery of the fixed disk and the ratchet groove. A pawl is hinged to the end face of the fixed disk away from the first fixed plate, and the end of the pawl away from the fixed disk abuts against the ratchet groove.

[0007] Optionally, a spring sheet is provided on the end face of the fixed plate away from the first fixed plate, and the end of the spring sheet away from the fixed plate abuts against the pawl.

[0008] Optionally, a support rod is provided at the center of the fixed disk shaft, and one end of the support rod is connected to the first fixed plate and the other end is connected to the second fixed plate.

[0009] Optionally, the rotating disk is provided with a sleeve along its axial direction, and one end of the sleeve is fixed to the outside of the ratchet groove, while the other end is rotatably connected to the inside of the second fixing plate.

[0010] Optionally, the sleeve is provided with a rotating handle and a fastening post along its outer periphery, and one end of the safety rope is fastened to the fastening post.

[0011] Optionally, screw holes are provided at the four corners of the first fixing plate.

[0012] Optionally, the hook is a self-locking hook.

[0013] Beneficial effects: The safety belt system of this application, through the action of the rope tensioner, can quickly lock the length of the safety rope when it is under stress, such as when a person tilts or sways, preventing positional displacement due to rope slack. Compared with traditional safety belts that rely solely on knots or simple buckles for fixation, the locking structure of the rope tensioner ensures that the safety rope will not slip or extend in emergency situations, stabilizing the person's range of motion within a preset safe zone and preventing accidents. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the seat belt system in this application; Figure 2 This is a diagram showing the external structure of the rope tensioner in this application; Figure 3 This is a diagram showing the internal structure of the rope tensioner in this application; Figure 4 This is a schematic diagram of the ratchet groove and pawl structure of this application; Figure 5 This is a schematic diagram of the rotating handle of this application.

[0015] In the diagram: 1. First fixing plate; 2. Second fixing plate; 3. Tightening device; 4. Safety rope; 5. Hook; 6. Rotating disc; 7. Ratchet; 8. Fixing disc; 9. Pad; 10. Spring; 11. Support rod; 12. Sleeve; 13. Rotating handle; 14. Fastening post; 15. Screw hole. Detailed Implementation

[0016] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application as appropriate to the specific circumstances.

[0019] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0020] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0021] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

[0022] To make the objectives, technical solutions, and beneficial effects of this application clearer, the preferred embodiments of this application will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding by those skilled in the art.

[0023] Example 1: See Figure 1 A seatbelt system, including a seatbelt, and further comprising: First fixing plate 1; The second fixing plate 2 is disposed on one side opposite to the first fixing plate 1; The rope tensioner 3 is installed between the first fixing plate 1 and the second fixing plate 2; The safety rope 4 has one end fastened to the rope tensioner 3 and the other end connected to a hook 5, which is connected to the safety belt buckle.

[0024] Specifically, the first fixing plate 1 and the second fixing plate 2 are spaced apart. The first fixing plate 1 and the second fixing plate 2 provide a stable mounting base for the rope tensioner 3, preventing deformation or displacement of the rope tensioner 3 under stress and ensuring the structural strength of the entire system when subjected to fall impact. The rope tensioner 3 is fixed to the anchor point. One end of the safety rope 4 is fastened to the rope tensioner 3, and the other end is hooked to the safety belt buckle via the hook 5, forming a reliable connection from the human body to the fixed structure. The length of the safety rope 4 can be adjusted via the rope tensioner 3. When the worker needs to move or adjust their posture, the tension of the safety rope 4 can be flexibly changed via the rope tensioner 3.

[0025] Traditional safety belts are prone to displacement or slippage during use, posing safety risks. The safety belt system of this application, through the action of the rope tensioner 3, can quickly lock the length of the safety rope 4 when under stress, such as when a person tilts or sways, preventing positional shifts due to rope slack. Compared to traditional safety belts that rely solely on knots or simple buckles for fixation, the locking structure of the rope tensioner 3 ensures that the safety rope 4 will not slip or extend in emergency situations, stabilizing the person's range of motion within a preset safe zone and preventing accidents.

[0026] Example 2: See Figures 2 to 5 Optionally, the tensioner 3 includes: A rotating disk 6 is rotatably installed inside the first fixed plate 1. A ratchet groove 7 is provided on the rotating disk 6. A fixed disk 8 is provided in the ratchet groove 7. There is a gap between the outer periphery of the fixed disk 8 and the ratchet groove 7. A pawl 9 is hinged to the end face of the fixed disk 8 away from the first fixed plate 1, and the end of the pawl 9 away from the fixed disk 8 abuts against the ratchet groove 7.

[0027] Specifically, an installation groove is formed on the inner side of the first fixing plate 1. The rotating disk 6 is rotatably installed in the groove via a bearing. The inner ring of the bearing is fixed to the outer circumference of the rotating disk 6, and the outer ring is fixed to the inner sidewall of the installation groove. A fixing disk 8 is provided in the ratchet groove 7. A pawl 9 is hinged to the end face of the fixing disk 8 away from the first fixing plate 1, and the pawl 9 is supported by the fixing disk 8.

[0028] The ratchet groove 7 and the pawl 9 form a corresponding engagement—when the rotating disk 6 is subjected to a force and rotates in the forward direction, the pawl 9 slides along the inclined surface of the ratchet groove 7; while when the rotating disk 6 is subjected to a reverse force, the pawl 9, under its own structural action, presses against the straight surface of the ratchet groove 7, preventing the rotating disk 6 from rotating in the reverse direction. The gap between the fixed disk 8 and the ratchet groove 7 provides rotation space for the rotating disk 6. At the same time, the fixed disk 8 serves as the mounting base for the pawl 9, and the hinged structure ensures that the pawl 9 can flexibly fit into the ratchet groove 7, quickly exerting a locking function when subjected to a reverse force.

[0029] Optionally, a spring piece 10 is provided on the end face of the fixed disk 8 away from the first fixed plate 1, and the end of the spring piece 10 away from the fixed disk 8 abuts against the pawl 9.

[0030] Specifically, when the rotating disk 6 rotates forward, the pawl 9 slides along the inclined surface of the ratchet groove 7, temporarily compressing the spring 10. When there is a gap in the sliding or the rotation stops, the rebound force of the spring 10 can immediately push the pawl 9 back to its original position, causing it to re-adhere to the surface of the ratchet groove 7. When the rotating disk 6 is subjected to a reverse force and attempts to loosen, the elasticity of the spring 10 allows the pawl 9 to quickly engage with the locking surface of the ratchet groove 7, avoiding locking delays or failures caused by gaps between the pawl 9 and the ratchet groove 7. This continuous elastic contact does not hinder the forward tightening action of the rotating disk 6, and ensures the timeliness and reliability of the reverse locking.

[0031] Optionally, a support rod 11 is provided at the axis of the fixed disk 8, and one end of the support rod 11 is connected to the first fixed plate 1, and the other end is connected to the second fixed plate 2.

[0032] Specifically, the support rod 11 is fixedly connected to the fixed disk 8, the first fixed plate 1, and the second fixed plate 2 respectively. The first fixed plate 1 and the second fixed plate 2 provide support for the support rod 11, and the support rod 11 provides support for the fixed disk 8, thereby preventing the fixed disk 8 from shaking and improving the meshing stability of the pawl 9 and the ratchet groove 7.

[0033] Optionally, the rotating disk 6 is provided with a sleeve 12 along its axial direction, and one end of the sleeve 12 is fixed to the outside of the ratchet groove 7, and the other end is rotatably connected to the inside of the second fixing plate 2.

[0034] Specifically, one end of the sleeve 12 is fixed to the rotating disk 6 and located outside the ratchet groove 7, while the other end is rotatably mounted to the inner side of the second fixing plate 2 via a bearing. The inner side of the second fixing plate 2 has a mounting groove; the inner ring of the bearing is fixed to the outer circumference of the sleeve 12, and the outer ring is fixed to the inner wall of the mounting groove. In this way, when the rotating disk 6 rotates, it drives the sleeve 12 to rotate synchronously; when the pawl 9 engages with the ratchet groove 7, the sleeve 12 stops rotating.

[0035] Optionally, the sleeve 12 is provided with a rotating handle 13 and a fastening post 14 along its outer periphery, and one end of the safety rope 4 is fastened to the fastening post 14.

[0036] Specifically, the rotating handle 13 is located on the outer periphery of the sleeve 12, providing the operator with a labor-saving grip and force application point. When it is necessary to tighten the safety rope 4, rotating the handle will drive the sleeve 12 and the rotating disk 6 fixed to it to rotate synchronously. By using the lever principle, the manual operation force is reduced, making the tightening action easier and more efficient. At the same time, the handle design makes it easy to control the speed and direction of the sleeve 12, allowing the adjustment of the safety rope 4 to be completed quickly. When the sleeve 12 is tightened by rotating the handle, the buckle 14 can stably transmit torque to the safety rope 4, ensuring that the length of the safety rope 4 can be effectively adjusted with each rotation; in the locked state, the secure connection between the buckle 14 and the safety rope 4, together with the locking function of the pawl 9, prevents the safety rope 4 from slackening. The rotating handle 13 can be located at one end near the first fixed plate 1 or at one end near the second fixed plate 2, as long as it is convenient to hold.

[0037] Optionally, screw holes 15 are provided at the four corners of the first fixing plate 1.

[0038] Specifically, the rope tensioner 3 can be fixed to the anchor point using bolts through the screw holes 15, ensuring the smooth operation of high-altitude work. Alternatively, screw holes 15 can also be made at the four corners of the second fixing plate 2.

[0039] Optionally, the hook 5 is a self-locking hook 5.

[0040] Specifically, the self-locking hook 5 has a built-in spring or mechanical locking structure. When the hook 5 is connected to the safety belt buckle, the locking tongue will automatically spring back and lock the opening, which can only be opened by manually operating the unlocking button. This design effectively prevents the hook 5 from accidentally falling off when the worker moves, collides, or is subjected to force, avoiding the separation of the safety rope 4 from the safety belt due to the hook 5 coming off, thus eliminating the risk of fall from the connection point. It should be noted that the self-locking hook 5 is existing technology and will not be described in detail here.

[0041] The working process of this embodiment is as follows: The operator holds the rotating handle 13 on the outer periphery of the sleeve 12 and rotates it clockwise. The handle drives the rotating disk 6 to rotate synchronously through the sleeve 12. At this time, the ratchet 7 on the rotating disk 6 rotates with it, and the pawl 9 on the fixed disk 8 abuts against the inclined surface of the ratchet 7 under the elastic force of the spring piece 10. It slides along the inclined surface with the rotation of the ratchet 7 and briefly compresses the spring piece 10. Since the fastening post 14 is fixed on the sleeve 12, after one end of the safety rope 4 is fastened to the fastening post 14, it will gradually wind and tighten with the rotation of the sleeve 12, realizing the adjustment of the length of the safety rope 4 until it reaches the body of the operator or the preset tension. When the safety rope 4 is subjected to reverse tension (such as the person tilting or swaying), the rotating disk 6 tends to rotate in the opposite direction, and the straight surface of the ratchet 7 will push the pawl 9. At this time, the rebound force of the spring piece 10 quickly presses the pawl 9 tightly against the straight surface of the ratchet 7. The two rigidly abut against each other to prevent the rotating disk 6 from rotating in the opposite direction, and the length of the safety rope 4 is locked to avoid the failure of protection caused by slack.

[0042] It should be noted that an unlocking component can be installed on the pawl 9. One end of the unlocking component extends beyond the fixed plate 8 and the first fixed plate 1. By overcoming the elastic force of the spring 10, the unlocking component drives the pawl 9 to rotate, causing its tip to leave the ratchet groove 7 and unlocking it. For easier unlocking, a second fixed plate 2 can be used to fix the entire device.

[0043] The embodiments of this application have been described in detail above with reference to the accompanying drawings, but this application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application, and these variations still fall within the protection scope of this application.

Claims

1. A seat belt system comprising a seat belt, characterized in that Also includes: First fixing plate; The second fixing plate is disposed on one side opposite to the first fixing plate; A rope tensioner is installed between the first fixing plate and the second fixing plate; A safety rope, one end of which is fastened to the rope tensioner, and the other end is connected to a hook, which is connected to the safety belt buckle; The rope tensioner includes: A rotating disk is rotatably mounted on the inner side of the first fixed plate. A ratchet groove is provided on the rotating disk, and a fixed disk is provided in the ratchet groove. There is a gap between the outer periphery of the fixed disk and the ratchet groove. A pawl is hinged to the end face of the fixed disk away from the first fixed plate, and the end of the pawl away from the fixed disk abuts against the ratchet groove. The end face of the fixed plate away from the first fixed plate is provided with a spring piece, and the end of the spring piece away from the fixed plate abuts against the pawl; A support rod is inserted through the center of the fixed disk shaft, and one end of the support rod is connected to the first fixed plate and the other end is connected to the second fixed plate; The rotating disk is provided with a sleeve along its axial direction, and one end of the sleeve is fixed to the outside of the ratchet groove, while the other end is rotatably connected to the inside of the second fixed plate. The sleeve is provided with a rotating handle and a fastening post along its outer periphery, and one end of the safety rope is fastened to the fastening post; The first fixing plate has screw holes at its four corners; The hook is a self-locking hook.

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