Passive anti-snag structure

Abstract

This utility model relates to the field of daily necessities, specifically a passive anti-strangulation structure, including a positioning component and a connector. Both the positioning component and the connector are equipped with buckles for fastening. The positioning component has a positioning cavity, and the connector has a insert plate matching the thickness of the positioning cavity, which inserts into the positioning cavity. The insert plate has raised dots on its surface, and the cavity wall of the positioning cavity has positioning holes corresponding to the shapes of the raised dots. The cavity wall is configured to elastically deform under pressure from the raised dots. When the positioning component and the connector's end faces abut against each other, the raised dots engage with the positioning holes for positioning. This utility model allows the lanyard on the identification tag to automatically detach after a certain pulling force is applied, preventing strangulation.

Description

Technical Field

[0001] This utility model relates to the field of daily necessities, specifically a passive anti-stranglement structure. Background Technology

[0002] Attached or lanyard-style ID tags typically use strong, durable materials like nylon or polyester for the lanyard, from which the name tag is suspended for employee identification. However, in certain environments, such as machine tool operation, the lanyard can easily get caught when an employee bends over or approaches a high-speed rotating spindle, chuck, or drill bit. Once caught, the lanyard tightens instantly, pulling the employee towards the machine. Similarly, in factories and logistics sorting centers, the lanyard may get caught on belt joints, rollers, or goods when near a moving conveyor belt. In office areas, the lanyard may snag on protruding door handles or open drawer pulls while walking, creating a sudden pulling force as the employee continues forward. Even while cycling, the lanyard may snag on the handlebars when riding or passing parked vehicles. In such environments, the sudden tightening of the lanyard can easily cause strangulation injuries to employees, thus requiring immediate attention. Summary of the Invention

[0003] To avoid and overcome the technical problems existing in the prior art, this utility model provides a passive anti-strangulation structure. This utility model can automatically detach the lanyard on the identification tag after a certain tensile force is exceeded, preventing strangulation injury.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A passive anti-stranglement structure includes a positioning component and a connector, both of which are provided with buckles for fastening. The positioning component has a positioning cavity, and the connector has a insert plate that matches the thickness of the positioning cavity. The insert plate is inserted into the positioning cavity. The surface of the insert plate has raised dots, and the cavity wall of the positioning cavity has positioning holes that correspond to the shape of the raised dots. The cavity wall of the positioning cavity is configured to undergo elastic deformation when squeezed by the raised dots. When the end faces of the positioning component and the connector are in contact for positioning, the raised dots and positioning holes are engaged for positioning.

[0006] As a further embodiment of this utility model: both the positioning member and the plug-in member are flat square plate structures, the positioning cavity is arranged parallel to the plate surface of the positioning member, and the plug plate is arranged parallel to the plate surface of the plug-in member.

[0007] As a further improvement of this utility model: the protrusion is spherical, with the cavity wall thickness of the positioning cavity being L and the height of the protrusion being h;

[0008]

[0009] As a further improvement of this utility model: the diameter of the positioning hole is d, and the diameter of the protrusion is k;

[0010] d = k + 0.1.

[0011] As a further improvement of this utility model: the positioning cavity is a square insertion cavity, the insertion plate is semi-circular, and the diameter of the insertion plate is 0.9 times the opening width of the positioning cavity.

[0012] As a further improvement of this utility model, the positioning member and the plug-in member are provided with an indicator mark indicating the plug-in direction.

[0013] As a further improvement of this utility model: two sets of protrusions are provided, symmetrically arranged on the front and back sides of the insertion plate; symmetrically arranged positioning holes are correspondingly opened on the cavity walls on both sides of the positioning cavity.

[0014] As a further improvement of this utility model: the side wall of the positioning member is provided with a flip-type latch, the flip axis of the latch is parallel to the axis of the positioning hole, and the plug-in member is provided with a locking disc that cooperates with the latch. After the latch flips, it engages with the locking disc for positioning, so as to prevent the plug-in member from detaching from the positioning member.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model achieves stable fixation through the insertion and engagement of the insert plate and the positioning cavity, combined with the snap-fit ​​positioning of the protrusion and the positioning hole. Under a certain pulling force, the insert plate will not detach from the positioning cavity. When the pulling force applied to the insert plate by the hanging rope is too large, the protrusion will quickly trigger separation from the positioning hole, thereby avoiding strangulation injury. The snap-fit ​​and separation are achieved by utilizing the slight elastic deformation of the plastic material, without the need for any springs or other metal parts, thus avoiding problems such as rusting and fatigue failure of metal parts, resulting in a long service life and high durability.

[0017] 2. The flat square plate structure and the design of the plug-in end face of this utility model, together with clear indicator marks, make the plug-in operation intuitive and simple, and can be easily completed blindly without visual inspection.

[0018] 3. This utility model introduces a secondary locking mechanism consisting of a latch and a locking disc. In a normal office environment, users can enjoy the convenience of quick plugging and unplugging and the safety protection. In specific scenarios such as windy weather, users can manually flip the latch to mechanically lock it into the locking disc, thereby preventing the plug from detaching in the opposite direction. This achieves seamless switching between the two modes of "active locking" and "passive protection" and meets the personalized safety needs of different users. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a cross-sectional view of the present invention.

[0021] In the picture:

[0022] 1. Positioning component; 11. Positioning cavity; 12. Positioning hole; 13. Lock;

[0023] 2. Connector; 21. Insert plate; 22. Protrusion; 23. Locking plate;

[0024] 3. Buckle; 4. Indicator. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-2 In this embodiment of the utility model, a passive anti-strangulation structure is provided. The positioning component 1 and the plug-in component 2 are integrally injection-molded plastic materials, with a flat square plate structure. A buckle 3 is provided at the end of the positioning component 1 and the plug-in component 2 away from the plug-in end. Two sets of buckles 3 are connected to the two ends of the strap, and the identification tag is fixed on the strap. A positioning cavity 11 is provided inside the positioning component 1. The positioning cavity 11 is a square insertion cavity, and its opening direction is parallel to the plate surface of the positioning component 1.

[0027] The connector 2 has a plug-in end with a plug plate 21 that mates with the positioning cavity 11. The plug plate 21 is semi-circular, and its diameter is designed to be 0.9 times the opening width of the positioning cavity 11 to ensure smooth insertion into the positioning cavity 11 while maintaining good alignment and preventing wobbling. The surface of the plug plate 21 is parallel to the plate surface of the connector 2, and the thickness of the plug plate 21 matches the height of the positioning cavity 11.

[0028] Two sets of protrusions 22 are symmetrically provided on both the front and back sides of the insertion plate 21. Each protrusion 22 is hemispherical in shape, with a height h ≤ 0.5 mm. The wall thickness of the positioning cavity is set to L. The reasonable setting of the wall thickness allows the positioning cavity to produce slight elastic deformation when squeezed by the protrusion 22, thereby allowing the protrusion 22 to slide along the cavity wall of the positioning cavity 11, and after finally engaging with the positioning hole 12 for positioning, the positioning cavity 11 springs back to its original position.

[0029] Positioning holes 12, matching the shape of the protrusions 22, are correspondingly provided on the cavity walls on both sides of the positioning cavity 11. The diameter d of the positioning hole 12 and the diameter k of the protrusion 22 satisfy the relationship: d = k + 0.1 mm. Through minute fit tolerances, effective locking is achieved. When using plastic material and limiting the above dimensions, the maximum tensile force that the anti-stretching structure can withstand is 23 ± 3 N, ensuring that the structure will not be falsely triggered and also avoiding excessive tensile force required for triggering that could cause strangulation injury to the user.

[0030] When the connector 2 is inserted into the positioning component 1, the insertion direction is determined by the arrows on the indicator marks 4 on the surfaces of the positioning component 1 and the connector 2. After the insert plate 21 is inserted into the positioning cavity 11, when the end faces of the connector 2 and the positioning component 1 abut against each other, the protrusion 22 is precisely engaged in the positioning hole 12, and a "click" sound is emitted to provide feedback after the engagement, thus achieving engagement and positioning. When the rope is under tension, the protrusion 22 disengages from the positioning hole 12, and the connector 2 separates from the positioning component 1, thereby preventing strangulation injuries to workers.

[0031] In non-neck-hanging or windy conditions, secondary locking of the structure can be achieved through the cooperation of the latch and the locking disc. A locking disc 23 is provided on the connector 2. A flip-up latch 13 is hinged to the side wall of the positioning member 1 via a pivot, with its flipping axis parallel to the axis of the positioning hole 12. After initial insertion, the latch 13 is flipped downwards, locking into the locking disc 23 of the connector 2. This operation mechanically restricts the possibility of the connector 2 disengaging from the positioning member 1, greatly improving the reliability and safety of the connection in specific scenarios.

[0032] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0033] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0034] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A passive anti-strangulation structure, characterized in that, The device includes a positioning component (1) and a connector (2). Both the positioning component (1) and the connector (2) are provided with buckles (3) for fastening. The positioning component (1) has a positioning cavity (11). The connector (2) is provided with a plate (21) that matches the thickness of the positioning cavity (11). The plate (21) is inserted into the positioning cavity (11). The plate (21) has a protruding point (22) on its surface. The positioning cavity (11) has a positioning hole (12) that corresponds to the shape of the protruding point (22) on its cavity wall. The cavity wall of the positioning cavity (11) is configured to produce elastic deformation after being squeezed by the protruding point (22). When the end faces of the positioning component (1) and the connector (2) are in contact and positioned, the protruding point (22) and the positioning hole (12) are engaged and positioned.

2. The passive anti-strangulation structure according to claim 1, characterized in that, Both the positioning component (1) and the plug-in component (2) are flat square plate structures. The positioning cavity (11) is arranged parallel to the plate surface of the positioning component (1), and the plug plate (21) is arranged parallel to the plate surface of the plug-in component (2).

3. The passive anti-strangulation structure according to claim 2, characterized in that, The protrusion (22) is spherical, with the wall thickness of the positioning cavity (11) as L and the height of the protrusion (22) as h; h≤0.5mm。 4. A passive anti-strangulation structure according to claim 3, characterized in that, Let d be the diameter of the positioning hole (12) and k be the diameter of the protrusion (22); d = k + 0.

1.

5. A passive anti-strangulation structure according to any one of claims 1 to 4, characterized in that, The positioning cavity (11) is a square insertion cavity, and the insertion plate (21) is semi-circular. The diameter of the insertion plate (21) is 0.9 times the opening width of the positioning cavity (11).

6. A passive strangulation prevention structure according to any one of claims 1 to 4, characterized in that, The positioning member (1) and the plug-in member (2) are provided with an indicator (4) indicating the plug-in direction.

7. A passive strangulation prevention structure according to any one of claims 1 to 4, characterized in that, Two sets of protrusions (22) are provided, symmetrically arranged on the front and back sides of the insertion plate (21); symmetrically arranged positioning holes (12) are provided on the cavity walls on both sides of the positioning cavity (11).

8. A passive strangulation prevention structure according to any one of claims 1 to 4, characterized in that, The side wall of the positioning member (1) is provided with a flip-type latch (13). The flip axis of the latch (13) is parallel to the axis of the positioning hole (12). The plug-in member (2) is provided with a locking disc (23) that cooperates with the latch (13). After the latch (13) flips, it engages with the locking disc (23) for positioning, so as to prevent the plug-in member (2) from detaching from the positioning member (1).

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