Anti-loosening early warning component for safety rope working
By integrating automatic tightening and warning components into the safety rope buckle, the problems of loosening risk and lack of warning in traditional buckles are solved, realizing the automatic tightening and warning functions of the safety rope, thus improving safety and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SANTONG ROPE CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional safety rope buckles are prone to loosening, lack active warning functions, and their friction braking performance decreases in complex environments, making it impossible to prevent loosening in time.
It employs an automatic tightening and warning assembly, including a locking mechanism with elastic pretensioners, ratchet racks and pawls, combined with an inertial trigger and an audible and visual alarm, to achieve locking and warning functions without the need for external power.
It achieves automatic tightening and rigid locking of the safety rope, timely sound and light alarms, improves safety and reliability, adapts to complex environments, and reduces the risk of loosening.
Smart Images
Figure CN224156202U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of safety ropes, specifically relating to a safety rope anti-loosening warning component for working. Background Technology
[0002] Safety ropes are important safety aids in warehouses, logistics centers, and high-altitude operations. They are mainly used for securing goods, traction of equipment, fall prevention, and personnel safety protection. Loosening of safety ropes can lead to serious accidents.
[0003] Traditional safety rope locks still carry the risk of accidental loosening in actual use. The main reasons include: mechanical vibration or impact causing the lock screws, spring pins and other fasteners to gradually loosen; human negligence, such as not fully locking or accidentally activating the unlocking device; and rope wear or deformation causing lock engagement failure.
[0004] Currently, most anti-loosening locks on the market adopt passive structures such as threaded locking, spring clips, or friction braking. Although they can delay loosening to a certain extent, they have obvious defects: no active warning function, no warning in the early stage of loosening, and reliance on manual periodic inspection; single-stage anti-loosening mechanism: once the main locking structure fails (such as thread stripping), there is a lack of redundant protection; poor environmental adaptability, and the friction braking performance decreases in humid, low temperature, or oily environments.
[0005] Therefore, there is an urgent need for a safety rope locking device that can automatically tighten and rigidly lock, and trigger an audible and visual alarm when it loosens. Utility Model Content
[0006] This application provides a safety rope anti-loosening warning component that can achieve automatic tightening and rigid locking, and can trigger an audible and visual alarm when loosening, without requiring external power and adapting to complex environments.
[0007] The technical solution adopted in this application is as follows:
[0008] A safety rope anti-loosening warning component for work includes:
[0009] The locking housing is equipped with an axial slide rail and a safety rope through-hole;
[0010] The locking block is slidably mounted within the slide rail;
[0011] Automatic tightening assembly: includes an elastic pretensioner and a locking mechanism. The elastic pretensioner abuts against the locking block and the inner wall of the housing at both ends, respectively. The locking mechanism includes a ratchet rack fixed to the locking block and a pawl adapted to the ratchet rack.
[0012] Warning component: includes an inertial trigger and a warning component. The inner wall of the housing is provided with contacts that cooperate with the inertial trigger, and the warning component is connected to the contacts through a switching circuit.
[0013] In a preferred embodiment of a safety rope working anti-loosening warning component, the elastic pretensioner includes a pretensioning spring disposed in the inner cavity of the housing, the locking block is provided with a guide rod, and the pretensioning spring is sleeved on the guide rod.
[0014] In a preferred embodiment of a safety rope working anti-loosening warning component, a ratchet is located on the bottom surface of the locking block, and the ratchet is arranged parallel to the slide rail and the preload spring.
[0015] In a preferred embodiment of a safety rope working anti-loosening warning component, the pawl is hinged to the housing via a pin, and the locking mechanism further includes a compression spring disposed on the housing. The compression spring abuts against the pawl, and the axis of the compression spring is perpendicular to the extension direction of the ratchet rack, so that the pawl is engaged in the ratchet groove of the rack.
[0016] In a preferred embodiment of a safety rope working anti-loosening warning component, a reset button is also included. The reset button penetrates the side wall of the housing and has a push rod facing the pawl. The end of the push rod has a beveled structure.
[0017] In a preferred embodiment of a safety rope working anti-loosening warning component, the inertial trigger includes a pendulum hinged to the locking block, the pendulum being located on the side wall of the locking block, the warning component includes an audible and visual alarm, and the switching circuit includes a wire located in the housing, the pendulum striking a contact to close the switching circuit.
[0018] In a preferred implementation of a safety rope working anti-loosening warning component, the normal gap between the pendulum and the contact point is 1-2mm, and the trigger displacement is ≥3mm.
[0019] In a preferred embodiment of a safety rope working anti-loosening warning component, the audible and visual alarm includes a high-frequency flashing LED and a buzzer, and the warning element includes a button battery and a PCB circuit board.
[0020] In a preferred embodiment of a safety rope working anti-loosening warning component, the slide rail sidewall is provided with an S-shaped wiring groove, and the wire is arranged along the wiring groove.
[0021] In a preferred embodiment of a safety rope working anti-loosening warning component, a self-lubricating bushing is embedded in the slide rail, and the locking block and the bushing are fitted with a clearance.
[0022] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:
[0023] This application solution achieves dual safety protection—preventing loosening and providing early warning—by incorporating an automatic tightening component and an early warning component into the locking buckle housing and dynamic locking block. An axial slide rail ensures the stability and smoothness of the locking block's movement, effectively preventing jamming. The automatic tightening component utilizes the synergistic effect of an elastic preload and a ratchet rack to immediately provide rebound force when the safety rope shows signs of loosening, while the rigid locking of the pawl prevents reverse displacement. The early warning component uses an inertial trigger to detect loosening and, in conjunction with a warning device, issues a timely alert. The entire process requires no external power supply, ensuring high reliability. The integrated design of the automatic tightening and early warning components within the locking buckle not only solves the technical pain points of traditional locking buckles being prone to loosening and lacking early warning functionality, but also offers advantages such as compact structure, strong adaptability, and easy maintenance. It is suitable for scenarios with high safety requirements, such as high-altitude operations and fire rescue, and helps reduce the risk of safety accidents caused by accidental buckle loosening. Attached Figure Description
[0024] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0025] Figure 1 This is a cross-sectional view of the anti-loosening warning component in one embodiment of the present invention;
[0026] Figure 2 This is a rear view of the lock block in one embodiment of the present invention;
[0027] Figure 3 This is a schematic diagram of the wiring groove in one embodiment of the present invention.
[0028] Explanation of reference numerals in the attached figures:
[0029] 100-locking buckle, 200-safety rope;
[0030] 110 - Housing, 111 - Pawl, 112 - Reset Button, 113 - Push Rod;
[0031] 120 - Slide rail, 121 - Wiring channel;
[0032] 130-Locking block, 131-Guide rod, 132-Ratchet;
[0033] 140 - Preload spring;
[0034] 150 - Pendulum, 151 - Contact;
[0035] 160 - Audible and visual alarm. Detailed Implementation
[0036] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.
[0037] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.
[0038] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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.
[0039] 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 communication connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0040] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example 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 can be combined in any suitable manner in one or more embodiments or examples.
[0041] This application provides a safety rope 200 working anti-loosening warning component, such as... Figures 1 to 3 As shown, it includes:
[0042] The locking housing 110 is provided with an axial slide rail 120 and a through hole for a safety rope 200;
[0043] Lock block 130 is slidably disposed within slide rail 120;
[0044] Automatic tightening assembly: includes an elastic pretensioner and a locking mechanism. The two ends of the elastic pretensioner abut against the locking block 130 and the inner wall of the housing 110, respectively. The locking mechanism includes a ratchet rack 132 fixed to the locking block 130 and a pawl 111 adapted to the ratchet rack 132.
[0045] Warning component: includes an inertial trigger and a warning component. The inner wall of the housing 110 is provided with a contact 151 that cooperates with the inertial trigger. The warning component is connected to the contact 151 through a switch circuit.
[0046] This application solution achieves dual safety protection for the safety rope 200 by incorporating an automatic tightening component and an early warning component on the basis of the locking housing 110 and the dynamic locking block 130. The axial slide rail 120 ensures the stability and smoothness of the locking block 130's movement, effectively preventing jamming. The automatic tightening component, through the synergistic action of an elastic pre-tensioner and a ratchet rack 132, provides immediate rebound force when the safety rope 200 shows signs of loosening, while the rigid locking of the pawl 111 prevents reverse displacement. The early warning component detects loosening through an inertial trigger and issues a timely warning in conjunction with an alert component. The entire process requires no external power supply, ensuring high reliability. The integrated design of the automatic tightening component and the early warning component in the locking 100 not only solves the technical pain points of traditional locking 100's easy loosening and lack of early warning function, but also has advantages such as compact structure, strong adaptability, and easy maintenance. It is suitable for scenarios with high safety requirements, such as high-altitude operations and fire rescue, and helps reduce the risk of safety accidents caused by accidental loosening of the locking 100.
[0047] In one embodiment, the elastic pretensioner includes a pretension spring 140 disposed in the inner cavity of the housing 110, and the locking block 130 is provided with a guide rod 131, with the pretension spring 140 sleeved on the guide rod 131.
[0048] By mounting the preload spring 140 onto the guide rod 131, not only is accurate positioning and stable operation of the preload spring 140 ensured, but space utilization is also improved. The design of the guide rod 131 effectively prevents the preload spring 140 from skewing or twisting, ensuring that the preload force always acts axially, making the sliding of the locking block 130 smoother and more reliable. The structure is simple and reliable, and easy to assemble and maintain.
[0049] In one embodiment, the ratchet 132 is located on the bottom surface of the locking block 130, and the ratchet 132 is arranged parallel to the slide rail 120 and the preload spring 140.
[0050] By placing the ratchet rack 132 on the bottom surface of the locking block 130 and parallel to the slide rail 120 and the preload spring 140, space utilization is improved. This also makes the movement paths of the components more coordinated, reducing friction and energy loss, and resulting in more direct and efficient force transmission throughout the mechanism. Furthermore, the coaxial arrangement of the slide rail 120, preload spring 140, and ratchet rack 132 facilitates manufacturing, assembly, and debugging, reducing processing and assembly difficulties.
[0051] Furthermore, the pawl 111 is hinged to the housing 110 via a pin. The locking mechanism also includes a compression spring disposed on the housing 110. The compression spring abuts against the pawl 111. The axis of the compression spring is perpendicular to the extension direction of the ratchet rack 132, so that the pawl 111 is engaged in the ratchet groove of the rack.
[0052] The pawl 111 can rotate flexibly by means of a pin hinge, while the compression spring ensures that the pawl 111 always maintains reliable engagement with the ratchet rack 132. Preferably, the axis of the compression spring is arranged perpendicular to the extension direction of the ratchet rack 132, which can maximize the compression effect of the spring on the pawl 111, ensure the reliability of locking, and facilitate the unlocking by external force while ensuring the locking function.
[0053] Furthermore, it also includes a reset button 112, which penetrates the side wall of the housing 110. The reset button 112 is provided with a push rod 113 facing the pawl 111, and the end of the push rod 113 is a beveled structure.
[0054] In this embodiment, by setting a reset button 112 with a sloping push rod 113, the operation is more effortless. Users can easily release the locked state of the pawl 111 and quickly unlock it in an emergency. At the same time, it helps to avoid excessive wear of the pawl 111 and the ratchet rack 132, thus ensuring service life.
[0055] In one embodiment, the inertial trigger includes a pendulum 150 hinged to the locking block 130, the pendulum 150 being located on the side wall of the locking block 130, the warning element includes an audible and visual alarm 160, and the switching circuit includes wires located in the housing 110, the pendulum 150 striking a contact 151 to close the switching circuit.
[0056] The inertial triggering of the pendulum 150 is sensitive to abnormal movement of the locking block 130 and can respond quickly when the latch 100 becomes loose. The audible and visual alarm 160 ensures both visual and audible warning effects, allowing operators to detect problems promptly. The internal wiring arrangement ensures circuit reliability while maintaining a clean overall appearance of the latch 100, enhancing the user experience. As a mechanical triggering method, the pendulum-driven mechanism requires no continuous power supply, offering extremely high reliability and environmental adaptability.
[0057] In one embodiment, the normal gap between the pendulum 150 and the contact 151 is 1-2 mm, and the trigger displacement is ≥3 mm.
[0058] Setting a normal clearance of 1-2mm prevents false triggering while ensuring timely response; setting a trigger displacement of ≥3mm ensures that an alarm will only be triggered when loosening actually occurs. This helps ensure the sensitivity and reliability of the warning component, avoiding false alarms and missed alarms.
[0059] Preferably, the audible and visual alarm 160 includes a high-frequency flashing LED and a buzzer, and the warning components include a button battery and a PCB circuit board. The button battery is directly embedded in the back of the PCB board and contacts the circuit board through a flexible metal sheet. The combination of the high-frequency flashing LED and the buzzer ensures effective warning under various environmental conditions; the button battery power supply is simple, reliable, and has a long service life; the use of a PCB circuit board improves the stability and integration of the circuit. This configuration gives the audible and visual alarm 160 the advantages of low power consumption, high reliability, and easy maintenance, facilitating its widespread use.
[0060] In a preferred embodiment, the slide rail 120 has an S-shaped wiring groove 121 on its side wall, and the wires are arranged along the wiring groove 121.
[0061] The design of the S-shaped wiring channel 121 provides sufficient flexibility for the wires, ensuring that the wires are not excessively stretched or squeezed when the locking block 130 slides. This protects the wires, makes the internal structure more neat and orderly, and improves the reliability and service life of the product.
[0062] A flexible FPC cable extends from contact 151 and is embedded in a shallow groove on the side of the dynamic locking block 130. The cable extends to the S-shaped wiring groove 121 on the edge of the slide rail 120. Finally, it connects to the PCB board of the top audible and visual alarm 160, ending at the positive and negative terminals of the button battery (indirectly connected via the PCB board).
[0063] In one embodiment, the slide rail 120 is embedded with a self-lubricating bushing, and the locking block 130 is in clearance fit with the bushing. The self-lubricating bushing helps to reduce the coefficient of friction, making the sliding of the locking block 130 smoother; the clearance fit ensures the flexibility of movement and avoids excessive wobbling of the locking block 130, which helps to improve service life and user experience, while also reducing maintenance requirements.
[0064] For any parts not mentioned in this application, existing technologies may be used or referenced.
[0065] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0066] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.
Claims
1. A safety line work use loosening prevention early warning member characterized by, include: The locking housing is equipped with an axial slide rail and a safety rope through-hole; The locking block is slidably disposed within the slide rail; Automatic tightening assembly: includes an elastic pretensioner and a locking mechanism, wherein the two ends of the elastic pretensioner abut against the locking block and the inner wall of the housing, respectively; the locking mechanism includes a ratchet rack fixed to the locking block and a pawl adapted to the ratchet rack; Warning component: includes an inertial trigger and a warning component. The inner wall of the housing is provided with a contact that cooperates with the inertial trigger. The warning component is connected to the contact through a switching circuit.
2. The safety line work use loosening prevention early warning member according to claim 1, characterized by, The elastic preload includes a preload spring disposed in the inner cavity of the housing, the locking block is provided with a guide rod, and the preload spring is sleeved on the guide rod.
3. The safety line work use loosening prevention early warning member according to claim 2, characterized by, The ratchet is located on the bottom surface of the locking block, and the ratchet is arranged parallel to the slide rail and the preload spring.
4. The safety line work use loosening prevention early warning member according to claim 3, characterized by, The pawl is hinged to the housing via a pin. The locking mechanism also includes a compression spring disposed on the housing. The compression spring abuts against the pawl, and the axis of the compression spring is perpendicular to the extension direction of the ratchet rack, so that the pawl is engaged in the ratchet groove of the rack.
5. The anti-loosening warning component for safety rope operation according to claim 1, characterized in that, It also includes a reset button that extends through the side wall of the housing. The reset button has a push rod facing the pawl, and the end of the push rod has a beveled structure.
6. The safety line work use loosening prevention early warning member according to claim 1, characterized by, The inertial trigger includes a pendulum hinged to the lock block, the pendulum being located on the side wall of the lock block; the warning element includes an audible and visual alarm; the switching circuit includes a wire located in the housing; the pendulum strikes the contact to close the switching circuit.
7. The safety line work use loosening prevention early warning member according to claim 6, characterized by, The normal gap between the pendulum and the contact point is 1-2mm, and the trigger displacement is ≥3mm.
8. The safety line work use loosening prevention early warning member according to claim 6, characterized by, The audible and visual alarm includes a high-frequency flashing LED and a buzzer, and the warning component includes a button battery and a PCB circuit board.
9. The safety line work use loosening prevention early warning member according to claim 6, characterized by, The slide rail sidewall is provided with an S-shaped wiring groove, and the wire is arranged along the wiring groove.
10. The safety line work use loosening prevention early warning member according to claim 1, characterized by, The slide rail is embedded with a self-lubricating bushing, and the locking block is in clearance fit with the bushing.