Safety anti-falling device for house building construction

Abstract

This utility model relates to the field of fall protection technology, and provides a fall protection device for building construction. It is installed on a fall arrest rope and connected to the operator's body via a safety rope. The device includes a main body with a accommodating space for the fall arrest rope to pass through. The accommodating space contains a first pressing part and a second pressing part. The main body also has a safety rope connecting part for connecting the safety rope, located on one side of the accommodating space, with the main body's center of gravity close to the safety rope connecting part. When the main body is installed on the fall arrest rope, under the action of gravity, the main body is in an inclined state, and the first and second pressing parts press against the sides of the fall arrest rope to prevent the main body from sliding down. Through this technical solution, the pressure is automatically achieved by gravity, requiring no additional operation from the operator. It can respond quickly in the event of a fall, and the friction between the pressing part and the fall arrest rope effectively prevents the main body from sliding down, thereby ensuring the operator's safety.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of safety fall prevention technology, specifically, to a safety fall prevention device for building construction. Background Technology

[0002] In the field of building construction, high-altitude operations are common, and workers face the risk of falling. Therefore, safety fall arrest devices are crucial equipment for ensuring construction safety. Currently, safety fall arrest devices used in building construction typically need to be used in conjunction with fall arrest ropes, which are connected to the operator's body via safety ropes to provide protection in the event of an accidental fall.

[0003] Traditional fall arrest devices often rely on mechanical locking mechanisms or complex linkages to achieve their fall arrest function, which can lead to cumbersome operation and insufficient reliability. For example, some devices require manual adjustment or locking by operators, which may affect the fall arrest effect in emergencies due to delayed operation (or forgetting to fasten). Other devices have defects in the stability of their connection with the fall arrest rope, potentially resulting in untimely or uneven transmission of the fall arrest force during a fall. Furthermore, existing devices need improvement in terms of ease of installation and applicability, making it difficult to quickly adapt to different specifications of fall arrest ropes, thus affecting construction efficiency.

[0004] Therefore, how to provide a device that is simple in structure, responds quickly, is easy to install, and can reliably achieve the function of preventing falls has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this utility model provide a safety fall arrest device for building construction, which solves the technical problems of cumbersome use and poor protection of fall arrest devices in related technologies.

[0006] According to one aspect, at least one embodiment of the present invention provides a safety fall arrest device for building construction, for installation on a fall arrest rope and connected to the operator's body via a safety rope, comprising:

[0007] The main body has a receiving space for the passage of a fall arresting rope, and the receiving space has a first pressing part and a second pressing part;

[0008] The main body also has a safety rope connection part for connecting a safety rope, the safety rope connection part being located on one side of the receiving space, and the center of gravity of the main body being close to the safety rope connection part;

[0009] When the main body is installed on the fall arrest rope, under the action of gravity, the main body is in an inclined state, and the first pressing part and the second pressing part press against both sides of the fall arrest rope to prevent the main body from sliding down.

[0010] For example, at least one embodiment of this disclosure provides a safety fall arrest device for building construction.

[0011] The main body has an opening that communicates with the receiving space and provides a passage for the fall arresting rope to enter the receiving space.

[0012] For example, at least one embodiment of this disclosure provides a safety fall arrest device for building construction.

[0013] The first pressing part and the second pressing part are located on opposite sides of the receiving space. When the main body is installed on the fall arresting rope, the first pressing part is set higher than the second pressing part.

[0014] The opening is strip-shaped and located between the first pressure part and the second pressure part. When the main body is installed on the fall arrest rope, the upper end of the opening is away from the first pressure part and the lower end of the opening is away from the second pressure part.

[0015] For example, at least one embodiment of this disclosure provides a safety fall arrest device for building construction, which further includes:

[0016] A swing limit rod is provided on the main body. The swing limit rod is located inside the opening. One end of the swing limit rod is a connecting end and the other end is a swing end. The swing limit rod can swing and open the opening to allow the fall arrest rope to enter the receiving space.

[0017] For example, at least one embodiment of this disclosure provides a safety fall arrest device for building construction.

[0018] The swing limit rod swings vertically.

[0019] For example, at least one embodiment of this disclosure provides a safety fall arrest device for building construction.

[0020] The main body has an indicator arrow, the arrowhead of which points toward the first pressure part, to indicate the orientation of the main body when it is installed onto the fall arrest rope.

[0021] For example, at least one embodiment of this disclosure provides a safety fall arrest device for building construction.

[0022] Both the first pressing part and the second pressing part are concave arc-shaped surfaces, and both the first pressing part and the second pressing part have anti-slip pads.

[0023] For example, at least one embodiment of this disclosure provides a safety fall arrest device for building construction.

[0024] The safety rope connection part has a connection hole for the safety rope to pass through.

[0025] For example, at least one embodiment of this disclosure provides a safety fall arrest device for building construction.

[0026] The connecting end of the swing limiting rod is fixedly installed on the main body, and the swing limiting rod is an elastic rod.

[0027] For example, at least one embodiment of this disclosure provides a safety fall arrest device for building construction.

[0028] The swing limiting rod has a rectangular cross-section, with its long side arranged along the through direction of the opening.

[0029] The beneficial effects of the embodiments of this utility model are as follows:

[0030] In this invention, the main body is provided with a first pressing part and a second pressing part, forming a receiving space between them to accommodate the fall arrest rope. This structural design allows the fall arrest rope to be stably accommodated within the main body, providing a foundation for subsequent pressing and anti-slip. The safety rope connection part is located on one side of the receiving space, and the center of gravity of the main body is close to this connection part. This design allows the main body to naturally tilt towards the safety rope connection part due to the shift in the center of gravity after the safety fall arrest device is connected to the operator's body via the safety rope. This ensures that the first and second pressing parts can firmly press against the sides of the fall arrest rope. This gravity-based automatic pressing method requires no additional operation from the operator and can respond quickly in the event of a fall. The friction between the pressing part and the fall arrest rope effectively prevents the main body from sliding down, thus ensuring the operator's safety. The opening communicates with the receiving space, providing a convenient entry channel for the fall arrest rope, allowing the safety fall arrest device to be easily installed on the fall arrest rope, improving the practicality and installation efficiency of the device. The safety rope connection connects the safety fall arrest device to the safety rope, tightly integrating the operator's body with the device. This ensures that during a fall, gravity is transferred to the main body via the safety rope, causing the main body to exert pressure. The entire device has a rational structural design, with each component working in tandem. Through center of gravity shift and gravity, it achieves automatic pressure and anti-slip action. It boasts advantages such as simple structure, high reliability, and good safety performance, effectively meeting the needs of safety fall arrest devices in building construction. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of a safety fall arrest device for building construction in one embodiment of the present invention. Figure 1 ;

[0033] Figure 2 for Figure 1 Schematic diagram of three-dimensional structure in the embodiment Figure 2 ;

[0034] Figure 3 for Figure 1 A schematic diagram of the rear view structure in the embodiment;

[0035] Figure 4 for Figure 1 A top view of the structure in the embodiment;

[0036] Figure 5 for Figure 4 Schematic diagram of the AA section structure;

[0037] Figure 6 for Figure 1 The embodiment shows a schematic diagram of the fall arrestor in use.

[0038] In the diagram: 1-Main body, 11-First pressing part, 12-Second pressing part, 13-Accommodation space, 14-Safety rope connection part, 15-Opening, 2-Swing limit rod, 3-Indicator arrow, 4-Anti-slip pad, 8-Anti-fall rope. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0040] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0041] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] like Figures 1-6 As shown, this invention illustrates a safety fall arrest device for building construction in one embodiment. The main body 1 has a block-shaped structure and a receiving space 13 for the passage of a fall arrest rope 8. The receiving space 13 contains a first pressing part 11 and a second pressing part 12, with the first pressing part 11 positioned above the second pressing part 12, and the two parts arranged opposite to each other. A safety rope connecting part 14 is provided on one side of the main body 1 for connecting a safety rope. The center of gravity of the main body 1 is close to the safety rope connecting part 14. When the safety fall arrest device is installed on the fall arrest rope 8, the fall arrest rope 8 is contained within the receiving space 13. Because the center of gravity of the main body 1 is close to the safety rope connecting part 14, under the action of gravity, the main body 1 will tilt to a certain extent with the fall arrest rope 8 as a fulcrum, thereby causing the first pressing part 11 and the second pressing part 12 to press against the sides of the sidewall of the fall arrest rope 8, respectively. The friction between the two parts and the fall arrest rope 8 prevents the main body 1 from sliding down. The main body 1 has an opening 15 communicating with the receiving space 13. This opening 15 provides a channel for the fall arresting rope 8 to enter the receiving space 13. The shape of the opening 15 is adapted to the cross-sectional shape of the fall arresting rope 8 so that the fall arresting rope 8 can smoothly enter the receiving space 13. The safety rope connection part 14 can be a connecting ear extending outward from the main body 1. The connecting ear has a through hole for the safety rope to pass through, and the connection with the safety rope is achieved through the through hole.

[0046] In some examples, refer to Figure 5 and Figure 6 As shown, the main body 1 has a first pressing part 11 and a second pressing part 12 arranged in the receiving space 13. This structural design allows the fall arrest rope 8 to be stably housed within the main body 1, providing a foundation for subsequent pressing and anti-slip. The safety rope connection part 14 is located on one side of the receiving space 13, and the center of gravity of the main body 1 is close to this connection part. This design allows the main body 1 to naturally tilt towards the safety rope connection part 14 due to the shift in the center of gravity after the safety fall arrest device is connected to the operator's body via the safety rope. This allows the first pressing part 11 and the second pressing part 12 to press against the sides of the side wall of the fall arrest rope 8. This method of automatically achieving pressing by gravity requires no additional operation from the operator and can respond quickly in the event of a fall. The friction between the pressing part and the fall arrest rope 8 effectively prevents the main body 1 from sliding down, thereby ensuring the operator's safety. The opening 15 communicates with the receiving space 13, providing a convenient entry channel for the fall arrest rope 8, allowing the safety fall arrest device to be easily installed on the fall arrest rope 8, improving the practicality and installation efficiency of the device. The safety rope connector 14 connects the safety fall arrest device to the safety rope, tightly integrating the operator's body with the fall arrest device. This ensures that during a fall, gravity is transferred to the main body 1 via the safety rope, causing the main body 1 to generate a counter-pressure action. The entire device has a reasonable structural design, with each component working in concert. It achieves automatic counter-pressure and anti-slip through center of gravity shift and gravity, offering advantages such as simple structure, high reliability, and good safety performance. It effectively meets the needs of safety fall arrest devices in building construction.

[0047] Furthermore, refer to Figure 2 As shown, the main body 1 has an opening 15 on one side of the receiving space 13 formed by the first pressing part 11 and the second pressing part 12. The opening 15 penetrates the side wall of the main body 1 and communicates with the receiving space 13. Its shape is adapted to the cross-sectional profile of the fall arresting rope 8, forming a channel for the fall arresting rope 8 to enter the receiving space 13. The width of the opening 15 is slightly larger than the diameter of the fall arresting rope 8, ensuring that the fall arresting rope 8 can smoothly enter the receiving space 13 through the opening 15.

[0048] In this embodiment, the opening 15 provides an installation path for the fall arrestor rope 8. Workers do not need to thread the fall arrestor rope 8 through the top or remove the existing structure; they can directly install the main body 1 to the designated position of the fall arrestor rope 8 through the opening 15, significantly improving the ease of installation. The connection between the opening 15 and the accommodating space 13 ensures stable accommodation of the fall arrestor rope 8 while avoiding the cumbersome operations associated with traditional enclosed structures, enabling the safety fall arrestor to quickly adapt to the installation requirements of the fall arrestor rope 8 in different work scenarios.

[0049] Furthermore, refer to Figure 5As shown, the first pressing part 11 is located above the second pressing part 12, i.e., not directly opposite each other. The two are arranged vertically opposite each other, forming a vertically distributed pressing structure. The opening 15 is a strip-shaped hole (see reference). Figure 3 Its length direction forms a preset angle with the vertical central axis of the main body 1, and extends obliquely away from the first pressing part 11 and the second pressing part 12 (that is, the upper end of the opening 15 is away from the first pressing part 11, and the lower end of the opening 15 is away from the second pressing part 12).

[0050] In this embodiment, the inclined arrangement of the opening 15 forms an anti-detachment structure design to prevent the fall arrest rope 8 from going out through the opening 15. Specifically, refer to... Figure 5 and Figure 6 As shown, the first pressing part 11 is away from the opening 15, and the second pressing part 12 is away from the opening 15. This means that the fall arrest rope and the opening 15 have a crossing angle, so it is not easy to get out of the opening 15.

[0051] Furthermore, refer to Figure 2 As shown, a swing limiting rod 2 is provided between the two side walls of the opening 15 in the main body 1. One end of the swing limiting rod 2 is fixed to the inner wall of the main body 1 of the opening 15 by a pin (the pin has a torsion spring to keep the swing limiting rod 2 in the closed state of the opening 15), and the other end is a free swing end. When the free end is moved, the swing limiting rod 2 rotates around the fixed end, fully opening the opening 15 to allow the fall arresting rope 8 to pass through.

[0052] In this embodiment, the swing limit rod 2 is set at the opening 15 to form an openable and closable blocking structure: during installation, the opening 15 is opened by moving the limit rod to facilitate the insertion of the fall arrest rope 8; after installation, the limit rod is reset to prevent the fall arrest rope 8 from accidentally coming out of the opening 15, which improves the reliability of the connection between the device and the fall arrest rope 8 while ensuring the ease of installation.

[0053] Furthermore, refer to Figure 3 As shown, the swing direction of the swing limiting rod 2 is limited to vertical rotation in a vertical plane, and the rotation axis of the limiting rod is parallel to the horizontal plane of the main body 1. During the vertical swing, the free end of the swing limiting rod 2 moves only in the vertical direction and does not produce lateral offset, ensuring that the opening and closing action of the opening 15 is always carried out in the vertical direction.

[0054] In this embodiment, the vertical swing design makes the movement trajectory of the swing limit rod 2 stable and controllable, and avoids the fall arrest rope 8 from coming off the opening 15 due to lateral swing.

[0055] Furthermore, refer to Figure 1 As shown, the outer surface of the main body 1 is provided with an indicator arrow 3, the tip of which points above the first pressing part 11, and the engraved line is located in a prominent part of the main body 1.

[0056] In this embodiment, the indicator arrow 3 provides a clear installation direction marker for the operator. By pointing the arrow to the first pressure part 11, it ensures that the main body 1 is installed in the correct direction on the fall arrest rope 8, avoiding failure due to center of gravity shift or inability of the pressure part to provide proper pressure due to inverted direction. The intuitive arrow indication ensures the accuracy of the installation operation, reduces safety hazards caused by human error, and improves the ease of use of the device.

[0057] Furthermore, refer to Figure 1 As shown, the inner surfaces of the first pressing part 11 and the second pressing part 12 are both arc-shaped surfaces that match the outer circular contour of the fall arresting rope 8. The radius of curvature of the arc-shaped surface is slightly larger than the radius of the fall arresting rope 8, forming a semi-enclosed contact structure. The surface of the arc-shaped surface is fixedly attached to the anti-slip pad 4. The anti-slip pad 4 is made of a material with a high coefficient of friction and has fine concave and convex textures on its surface to increase the friction with the surface of the fall arresting rope 8.

[0058] In this embodiment, the arc-shaped surface design allows the first pressing part 11 and the second pressing part 12 to fit tightly against the cylindrical surface of the fall arresting rope 8. Compared with a planar pressing structure, this significantly increases the contact area, making the pressing force evenly distributed around the fall arresting rope 8 and avoiding rope damage caused by local stress concentration. The anti-slip pad 4 further improves the friction coefficient of the pressing surface. Under the action of gravity, the weight of the main body 1 is converted into a stable frictional force through the arc-shaped surface and the anti-slip pad 4, effectively preventing the main body 1 from sliding down. Even if there is dust or slight wear on the surface of the fall arresting rope 8, it can still maintain a reliable fall arresting effect.

[0059] Furthermore, refer to Figure 5 As shown, the safety rope connection part 14 has a cylindrical connection hole that penetrates the main body 1. The connection hole is located on one side of the receiving space 13. The safety rope passes through the connection hole through a knot or connector to achieve a fixed connection with the main body 1.

[0060] In this embodiment, the connecting hole structure provides a simple and reliable connection method, avoiding the loosening problems that may occur with traditional hook or buckle structures. The position design of the connecting hole naturally shifts the center of gravity of the main body 1 towards the safety rope side. When the operator is suspended by the safety rope, the tilting tendency of the main body 1 under the action of gravity is more significant, thereby enhancing the resistance of the first pressure part 11 and the second pressure part 12 to the fall arrest rope 8 and improving the reliability of the device.

[0061] Furthermore, the swing limit rod 2 is made of an elastic material, such as spring steel or elastic plastic. Its fixed end is fixedly connected to the main body 1, and its free end maintains the blocking state of the opening 15 by relying on the elastic force of the material when no external force is applied. When the free end is pushed upward, the limit rod undergoes elastic deformation, and the opening 15 is opened; after the external force is released, the limit rod automatically resets under the action of elastic restoring force, blocking the opening 15.

[0062] In this embodiment, the elastic swing limit rod 2 does not require an additional reset mechanism. It achieves automatic closure of the opening 15 through its own elasticity, simplifying the structural design and reducing the risk of failure. When installing the fall arrest rope 8, only external force needs to be applied to open the opening 15. After installation, the limit rod automatically resets, ensuring that the fall arrest rope 8 is always confined within the receiving space 13. This effectively prevents the device from falling off due to vibration or accidental collision, improving the stability and reliability of the connection structure.

[0063] Furthermore, refer to Figure 5 As shown, the cross-section of the swing limit rod 2 is rectangular, with the long side of the cross-section parallel to the horizontal plane (i.e., set along the through direction of the opening 15), and the length of the long side of the rectangle is greater than the length of the short side. The rectangular cross-section of the limit rod restricts the lateral swing of the limit rod when it swings vertically, ensuring that it can only swing in the vertical plane.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A safety fall arrest device for building construction, used to be installed on a fall arrest rope (8) and connected to the operator's body via a safety rope, characterized in that, include: The main body (1) has a receiving space (13) for the passage of a fall arresting rope (8), and the receiving space (13) has a first pressing part (11) and a second pressing part (12). The main body (1) also has a safety rope connection part (14) for connecting a safety rope, the safety rope connection part (14) being located on one side of the receiving space (13), and the center of gravity of the main body (1) being close to the safety rope connection part (14). When the main body (1) is installed on the fall arrest rope (8), under the action of gravity, the main body (1) is in an inclined state, and the first pressing part (11) and the second pressing part (12) press against both sides of the fall arrest rope (8) to prevent the main body (1) from sliding down.

2. The safety fall arrest device for building construction according to claim 1, characterized in that, The main body (1) has an opening (15) that communicates with the receiving space (13) and provides a passage for the fall arrest rope (8) to enter the receiving space (13).

3. A safety fall arrest device for building construction according to claim 2, characterized in that, The first pressing part (11) and the second pressing part (12) are located on opposite sides of the accommodating space (13). When the main body (1) is installed on the fall arrest rope (8), the first pressing part (11) is set higher than the second pressing part (12). The opening (15) is strip-shaped and located between the first pressing part (11) and the second pressing part (12). When the main body (1) is installed on the fall arrest rope (8), the upper end of the opening (15) is away from the first pressing part (11), and the lower end of the opening (15) is away from the second pressing part (12).

4. A safety fall arrest device for building construction according to claim 3, characterized in that, Also includes: A swing limit rod (2) is provided on the main body (1). The swing limit rod (2) is located in the opening (15). One end of the swing limit rod (2) is a connecting end and the other end is a swing end. The swing limit rod (2) can swing and open the opening (15) so that the fall arrest rope (8) can enter the receiving space (13).

5. A safety fall arrest device for building construction according to claim 4, characterized in that, The swing limit rod (2) swings vertically.

6. A safety fall arrest device for building construction according to claim 3, characterized in that, The main body (1) has an indicator arrow (3) with the arrow direction facing the first pressure part (11) to indicate the orientation of the main body (1) when it is installed on the fall arrest rope (8).

7. A safety fall arrest device for building construction according to any one of claims 1-6, characterized in that, Both the first pressing part (11) and the second pressing part (12) are concave arc-shaped surfaces, and both the first pressing part (11) and the second pressing part (12) have anti-slip pads (4).

8. A safety fall arrest device for building construction according to claim 7, characterized in that, The safety rope connection part (14) has a connection hole for the safety rope to pass through.

9. A safety fall arrest device for building construction according to claim 5, characterized in that, The connecting end of the swing limiting rod (2) is fixedly installed on the main body (1), and the swing limiting rod (2) is an elastic rod.

10. A safety fall arrest device for building construction according to claim 9, characterized in that, The swing limiting rod (2) has a rectangular cross-section, and its long side is set along the through direction of the opening (15).

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