A lifeline hanging post and lifeline connection structure

Abstract

This utility model discloses a lifeline hanging column and a lifeline connection structure, relating to the field of construction equipment technology. The lifeline hanging column includes a main column and a support column. The main column is installed vertically on the building structure, and a through hole is provided at the top of the main column to provide space for the lifeline to pass through. One end of the support column is connected between the two ends of the main column, and the other end is installed on the building structure via an angle steel connector. The support column includes a first connecting column and a second connecting column, which are movably connected end-to-end to allow the support column to extend and retract relative to the main column. A locking structure is provided between the first and second connecting columns. During construction, the relative positions of the two connecting columns can be flexibly adjusted according to the actual distance between the non-standard installation surface and the main column, eliminating safety risks caused by insufficient strength of temporary connectors and significantly improving the reliability of support force transmission.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment technology, specifically to a lifeline hanging column and a lifeline connection structure. Background Technology

[0002] In the construction industry, working at heights is a common type of work, and fall protection is a core element in ensuring the safety of workers at heights. Lifelines, as a critical fall protection device, are typically made of high-strength steel wire ropes. They form a continuous safety protection line by being attached to a fixed support structure. Workers connect their safety belts to the lifeline, which can effectively pull them back in the event of an accidental fall, preventing injury. The lifeline anchor post is the core supporting component of the lifeline, used to fix the lifeline to the building structure (such as floors, walls, steel frames, etc.), providing stable anchor points for the lifeline, ensuring it maintains the preset height and tension, and fulfilling its fall protection function.

[0003] With the development of the construction industry, the working scenarios at construction sites are becoming increasingly complex. The installation surfaces in some work areas are not flat concrete floors or vertical walls and columns. They may have non-standard installation surfaces such as slopes (such as roof slopes), irregular protrusions (such as wall embedded parts), and local depressions (such as around reserved openings in floor slabs).

[0004] However, the lifeline support columns and supporting structures cannot be adjusted according to the actual shape of the installation surface, resulting in the supporting structure not fitting tightly against the building structure's installation surface. This easily leads to a "virtual support" phenomenon, significantly reducing the supporting force. If temporary connectors are welded between the supporting structure and the building structure, it not only increases construction costs and time but may also introduce new safety hazards due to insufficient strength of the temporary connectors. Utility Model Content

[0005] The purpose of this utility model is to provide a lifeline hanging post and lifeline connection structure, which can be adapted to non-standard installation surfaces. By adjusting the support angle and length, it avoids "virtual support" and solves the problem of large safety hazards caused by unstable installation of existing posts, thus ensuring the effectiveness of fall prevention in high-altitude operations.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: Firstly, a lifeline hanging post is provided, including: The main column is used to be installed vertically on the building structure. A through hole is provided on the top of the main column to provide space for the lifeline to pass through the main column. A support column is connected at one end to the two ends of the main column, and the other end of the support column is installed in the building structure through an angle steel connector; The support column includes a first connecting column and a second connecting column. The first connecting column and the second connecting column are movably connected end to end, and a locking structure is provided between the first connecting column and the second connecting column so that the support column can extend and retract relative to the main column while being locked and fixed at a preset position within the range of extension and retraction.

[0007] As an optional implementation, the locking structure includes: Multiple first locking parts are provided at intervals along the extension direction of the support column on the first connecting column; The second locking part is movably disposed on the second connecting post. The second locking part has a locking position and a releasing position. When the second locking part is in the locking position, the second locking part can lock and cooperate with any of the first locking parts. When the second locking part is in the releasing position, the second locking part is unlocked from the first locking part. A reset member is provided between the second locking part and the second connecting post. The reset member acts on the second locking part to make the second locking part have a tendency to remain in the locked position.

[0008] As an optional implementation, the first connecting post is sleeved on the second connecting post; The first locking part is a locking hole opened in the first connecting post. A plurality of locking holes are arranged at intervals along the extension direction of the first connecting post, and a plurality of locking holes are equally spaced in the outer peripheral direction of the first connecting post. The second locking part is a locking pin, which can move between a locking position protruding from the second connecting post and a release position retracted into the second connecting post. There are multiple locking pins, which are equally spaced around the outer periphery of the second connecting post and can correspond to multiple locking holes arranged circumferentially.

[0009] As an optional implementation, the support column and the angle steel connector are connected by a hinge at their inward included angles.

[0010] As an optional implementation, the angle steel connector includes: First wing edge; and The second flange is connected to the first flange at an angle along the extension direction of the angle steel connector. The inner included angle between the first flange and the second flange forms the inward included angle, and the outer included angle between the first flange and the second flange forms the convex included angle. The first flange and / or the second flange are provided with a plurality of first connecting portions arranged at intervals along the extension direction of the angle steel connector, and the first connecting portions are used to connect the building structure.

[0011] As an optional implementation, the edge of the threading hole is covered with a cushioning element.

[0012] As an optional implementation, there are two support columns, and the included angles between the two support columns and between the support columns and the main column are all acute angles.

[0013] As an optional implementation, the main column is provided with a connecting base at one end for connecting to the building structure, and the main column and the connecting base are welded and fixed together. The connecting base is provided with a plurality of second connecting parts on opposite sides of the main column. The second connecting parts are used to connect the building structure, and the lines connecting the plurality of second connecting parts on both sides of the main column are parallel to each other.

[0014] As an optional implementation, the main column is an angle steel structure, and the main column includes: Third wing edge; and The fourth flange, wherein the third flange and the fourth flange are connected at an angle along the extension direction of the main column, and the support column is connected to the third flange or the fourth flange and is located between the third flange and the fourth flange; The ends of the third flange and the fourth flange are both welded to the connecting base.

[0015] Secondly, a lifeline connection structure is provided, including: As described in the first aspect, the lifeline is attached to a pillar; The steel wire rope lifeline has two ends that are respectively used to connect to relatively independent wall columns. The middle part of the steel wire rope lifeline is connected to the main column through the wire hole, thus defining a continuous fall protection line.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This lifeline system features a support column design where the first and second connecting columns are movably connected end-to-end. A locking mechanism enables both expansion and locking. During construction, the relative positions of the two connecting columns can be flexibly adjusted based on the actual distance between the non-standard mounting surface and the main column. If the mounting surface is recessed and the support span needs to be increased, the two connecting columns can be stretched to the appropriate length and then fixed using the locking mechanism. If the mounting surface is protruding and the span needs to be reduced, the two connecting columns can be retracted and locked. This expansion and adjustment method, which eliminates the need for additional welded temporary connectors, directly ensures a tight connection between the support column and the building structure via angle steel connectors, fundamentally eliminating the potential for "virtual support." This not only avoids increased construction costs and extended construction periods caused by temporary connectors but also eliminates safety risks introduced by insufficient strength in temporary connectors, significantly improving the reliability of support force transmission.

[0017] While achieving the telescopic function of the support column, this lifeline system hanging column adopts a design that uses only the first connecting column and the second connecting column to move end to end, rather than multiple connecting columns moving sequentially. This reduces the number of moving connection nodes, and while meeting the telescopic adjustment requirements for adapting to non-standard installation surfaces, it maximizes the structural integrity and strength of the support column, ensuring that it can stably bear tensile loads and avoid structural failure problems caused by too many connection nodes. This also meets the reliability requirements of the high-altitude operation fall protection system for support components.

[0018] In addition, the through-hole on the main column provides a stable space for the lifeline to pass through, ensuring that the lifeline is laid continuously along the preset height and avoiding abnormal sag of the lifeline due to the offset of the attachment point; and the support column, after achieving reliable support through its telescopic adjustment and locking structure, can further ensure that the main column is always in a vertical state, maintain the preset tension and attachment height of the lifeline, and effectively ensure the stability and effectiveness of the entire fall protection line. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the lifeline hanging column as described in this embodiment of the utility model; Figure 2 This is a front view of the lifeline hanging column described in this embodiment of the utility model; Figure 3 for Figure 2 Enlarged view of part A; Figure 4 This is a top view of the lifeline hanging column described in this embodiment of the utility model; Figure 5 This is one of the schematic diagrams of the support column structure described in the embodiment of this utility model; Figure 6 This is a second schematic diagram of the support column structure described in this embodiment of the present utility model; Figure 7 This is a cross-sectional view of the support column described in an embodiment of the present utility model; Figure 8 This is a schematic diagram of the cooperation structure between the support column and the angle steel connector as described in an embodiment of this utility model; Figure 9 This is a schematic diagram of the main column and connecting base mating structure according to an embodiment of the present utility model.

[0020] The components are as follows: 10. Main column; 11. Threading hole; 12. Buffer; 13. Connecting base; 131. Second connecting part; 14. Third flange; 15. Fourth flange; 20. Support column; 21. First connecting column; 22. Second connecting column; 23. Locking structure; 231. First locking part; 232. Second locking part; 233. Reset part; 30. Angle steel connector; 31. First flange; 32. Second flange; 33. First connecting part; 40. Hinge; 50. Steel wire rope lifeline. Detailed Implementation

[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," 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 on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, the internal connection of two elements, or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] As the background technology shows, in high-altitude construction operations, lifelines, as critical fall protection facilities, need to be stably fixed to the building structure via lifeline anchors to maintain a preset height and tension. However, current construction sites have many non-standard installation surfaces with slopes, irregular protrusions, or depressions. The existing lifeline anchors and support structures cannot be adjusted according to the actual shape of the installation surface, making it difficult for the support structure to fit tightly with the installation surface, easily resulting in "virtual support" and a significant decrease in support strength. If temporary connectors are welded to solve this problem, it will not only increase construction costs and time, but may also introduce new safety hazards due to insufficient strength of the temporary connectors. At the same time, the overall stability of the lifeline anchors is also difficult to meet the reliable support requirements of the fall protection system. These problems have seriously affected the effectiveness and ease of construction of fall protection for high-altitude operations.

[0025] In view of this, this embodiment provides a lifeline hanging column, which aims to optimize the structure in a targeted manner. It can flexibly adjust the support structure according to the actual shape of the non-standard installation surface to ensure reliable support and eliminate the hidden danger of "virtual support". It can also take into account the stability of the support structure and the convenience of construction, thereby solving the shortcomings of the existing technology and providing a more suitable and reliable support component for the fall protection system for high-altitude operations in building construction.

[0026] Please refer to the instruction manual attached. Figures 1-7 The lifeline mounting posts mainly include main posts 10 and support posts 20. Support posts 20 are connected to main posts 10, forming a complete support system with main posts 10. This system can provide stable mounting points for lifelines and is adaptable to complex construction site installation environments.

[0027] Specifically, the main support column 10, as the primary load-bearing component of the entire lifeline system, needs to be fixed vertically to the building structure. Its material can be selected based on the strength requirements of the construction scenario. For example, an angle steel structure made of Q235 steel (such as 50×5mm equilateral angle steel) can be used, utilizing the synergistic effect of two vertical flanges to enhance bending resistance; alternatively, seamless steel pipes with a wall thickness of 3-5mm can be selected, enhancing overall stability through the uniform stress characteristics of the circular cross-section. A through-hole 11 is provided on the main support column 10 to provide space for the lifeline (steel wire rope lifeline 50). Its opening height can be adaptively adjusted according to actual construction requirements (such as according to high-altitude operation safety regulations) to ensure the lifeline can be smoothly inserted while avoiding swaying caused by excessive gaps.

[0028] One end of the support column 20 is connected to the area between the two ends of the main column 10, and the other end is connected to the building structure through the angle steel connector 30, forming a lateral support for the main column 10. This triangular layout between the main column 10, the support column 20 and the building structure significantly improves the overall anti-overturning ability.

[0029] In this embodiment, the support column 20 is composed of a first connecting column 21 and a second connecting column 22, and the way they are movably connected end to end can be flexibly designed. For example, the first connecting column 21 and the second connecting column 22 can be, but are not limited to, using a sleeve-fitting method. For instance, the first connecting column 21 is sleeved on the outside of the second connecting column 22, and the second connecting column 22 can slide freely along the axial direction of the first connecting column 21, achieving overall expansion and contraction by changing the sleeve length; the first connecting column 21 and the second connecting column 22 can also use a groove-fitting method. For instance, the first connecting column 21 is provided with a long strip groove, and the second connecting column 22 is provided with a slider adapted to the groove. After the slider is embedded in the groove, it can slide along the groove, which can also adjust the length of the support column 20.

[0030] Here, the support column 20 in the lifeline hanging column adopts a two-section design (the first connecting column 21 is connected to the second connecting column 22) instead of a multi-section telescopic method. The main consideration is that the core function of the support column 20 is to transmit tension. That is, when the lifeline is under stress, the tension will be transmitted to the support column 20 through the main column 10. If there are too many connecting columns, stress concentration will occur at each connection node, which can easily lead to structural deformation or breakage. However, by using only two connecting columns, the length adjustment requirements can be met, and weak nodes can be minimized to ensure the structural stability of the support column 20.

[0031] Based on the above, a locking structure 23 is provided between the first connecting column 21 and the second connecting column 22. The locking structure 23 is used to fix the position after the support column 20 is adjusted to a suitable length, so that the support column 20 can move telescopically relative to the main column 10 while being locked and fixed at a preset position within the telescopic movement range.

[0032] The locking structure 23 can be, but is not limited to, using a pin-and-hole engagement method. For example, multiple locking holes are spaced axially along the side wall of the first connecting column 21, and a movable locking pin is provided at the corresponding position inside the second connecting column 22. When adjusting the length, the locking pin is pressed to retract it. After it is in place, the locking pin is engaged with the corresponding locking hole to achieve automatic locking. Bolt fastening method, for example, an axially extending waist-shaped hole is provided on the first connecting column 21, and a threaded hole is provided at the end of the second connecting column 22. When the length is adjusted to the right position, a bolt is passed through the waist-shaped hole and screwed into the threaded hole. After tightening, the relative positions of the two columns are fixed by friction. Eccentric wheel locking method, a rotatable eccentric wheel is provided at the end of the second connecting column 22. Rotating the eccentric wheel makes its edge fit tightly against the inner wall of the first connecting column 21, and locking is achieved by the squeezing force generated by the eccentric action.

[0033] It is worth mentioning that the angle steel connector 30, as a transition component between the support column 20 and the building structure, is usually made of L-shaped angle steel.

[0034] In summary, the main column 10 is the main supporting foundation of the lifeline, and its verticality is maintained by the tension of the support column 20. The support column 20 is adjusted by the expansion and contraction of the first connecting column 21 and the second connecting column 22 to adapt to different distances between the main column 10 and the building structure, while the locking structure 23 ensures the stability of the adjusted length. The angle steel connector 30 transmits the force of the support column 20 to the building structure.

[0035] In other words, the lifeline-hanging column, through the telescopic function of the support column 20, can directly respond to the concavity (elongation of the support column 20) or convexity (shortening of the support column 20) of the mounting surface. It achieves a tight fit between the support column 20 and the mounting surface without the need for additional welding of temporary connectors, fundamentally eliminating the phenomenon of "virtual support," ensuring effective transmission of support force, and maintaining the preset height and tension of the lifeline attached to the main column 10. This avoids excessive sag caused by attachment point misalignment, ensuring the safety of personnel working at heights. Furthermore, since there is no need to weld temporary connectors between the support column 20 (angle steel connector 30) and the building structure, it not only reduces the consumption of materials such as welding rods and steel plates, but also saves labor costs and construction time for welding operations. Simultaneously, it avoids the risk of structural failure due to substandard welding quality of temporary connectors (such as incomplete welds or insufficient weld legs).

[0036] Secondly, the two-section support column 20 design not only achieves the telescopic function, but also reduces the number of movable connection nodes of the support column 20. Compared with the multi-section structure, it has higher overall strength and can reliably withstand the tension of the lifeline and the impact force when people fall, avoiding lateral bending of the support column 20 due to structural weakness.

[0037] Following the above embodiments, please refer to the appendix. Figures 5-7 The locking structure 23 specifically includes multiple first locking parts 231 and at least one second locking part 232. Through the coordinated action of the first locking parts 231, the second locking parts 232 and the reset member 233, the length of the support column 20 can be flexibly adjusted to adapt to non-standard mounting surfaces, and the stability of the adjusted structure can be guaranteed.

[0038] Multiple first locking portions 231 serve as adjustment positions for the length of the support column 20, and are distributed at intervals on the first connecting column 21 along the extension direction of the support column 20. Their specific forms are adapted to the above exemplary description, and will not be further elaborated here. The second locking portion 232 is movably disposed on the second connecting column 22 to realize the locking and unlocking of the support column 20, and its structure must be adapted to the first locking portion 231.

[0039] The second locking part 232 has a locking position and a releasing position. The locking position of the second locking part 232 is the state in which it is locked and engaged with the first locking part 231 (such as the locking pin being inserted into the through hole and the locking head being embedded in the groove). At this time, the first connecting post 21 and the second connecting post 22 are relatively fixed, and the length of the support post 20 is locked. The releasing position of the second locking part 232 is the unlocked state in which it is disengaged from the first locking part 231 (such as the locking pin being retracted and the locking head being lifted). At this time, the first connecting post 21 and the second connecting post 22 can slide relative to each other, allowing the length of the support post 20 to be adjusted.

[0040] In order to keep the support column 20 at a fixed length under normal conditions, a reset member 233 is provided between the second locking part 232 and the second connecting column 22. The reset member 233 provides a continuous force to the second locking part 232, so that the second locking part 232 always remains in the locked position when there is no external force intervention, and avoids automatic unlocking due to unexpected factors such as vibration and impact. The specific form of the reset member 233 can be selected according to the structure of the second locking part 232. For example, when the second locking part 232 is a locking pin, the reset member 233 can be a compression spring. The compression spring is sleeved outside the locking pin, with one end abutting against the inner wall of the second connecting post 22 and the other end abutting against the locking pin (such as a limiting boss). In its natural state, the spring is in a slightly compressed state, pushing the locking pin outward. For example, when the second locking part 232 is a metal card, the reset member 233 can directly utilize the elasticity of the metal card itself. One end of the card is fixed to the second connecting post 22, and the other end naturally tilts up and is inserted into the groove. External force presses the end of the card to deform it and disengage it from the groove. After the external force is removed, the card automatically springs back to reset.

[0041] In this embodiment, the first locking part 231 serves as the reference scale for length adjustment, providing multiple mating points for the second locking part 232. The second locking part 232 acts as an actuator, switching between locking and unlocking through position changes. The reset part 233 acts as a safeguard, ensuring that the initial state of the second locking part 232 is locked through continuous force. During operation, the operator applies external force to overcome the force of the reset part 233, switching the second locking part 232 to the released position. At this time, the support column 20 can freely extend and retract. When adjusted to the appropriate length (i.e., the second locking part 232 aligns with a certain first locking part 231), the external force is removed. The second locking part 232 automatically returns to the locked position under the action of the reset part 233, cooperating with the corresponding first locking part 231 to fix the length of the support column 20. Compared with continuous adjustment without settings, this method can more accurately match the distance between the mounting surface and the main column 10, avoiding instability caused by excessive or insufficient adjustment, and further eliminating the hidden danger of "virtual support".

[0042] The automatic reset function of the reset component 233 eliminates the need for additional operation in the locking process between the first connecting column 21 and the second connecting column 22. Construction personnel only need to adjust the length and then release to complete the fixation. Compared with locking methods that require tools, such as bolt tightening, it can significantly shorten the operation time and is especially suitable for rapid installation when working at heights.

[0043] As a specific structural form of the above-described implementation method, such as Figure 1 , Figures 5-7 As shown, the first connecting post 21 and the second connecting post 22 are fitted together using a sleeve connection. The first connecting post 21 acts as an outer sleeve, with its inner diameter slightly larger than the outer diameter of the second connecting post 22. This allows the second connecting post 22 to slide freely along the axial direction of the first connecting post 21, forming a stable telescopic guide structure and improving torsional resistance. The advantage of this sleeve structure is that the two connecting posts remain nearly coaxial during telescopic movement, avoiding jamming or stress concentration caused by misalignment, and providing precise guidance for subsequent locking.

[0044] The locking holes formed on the first connecting post 21 serve as the first locking part 231. Multiple locking holes are arranged at intervals along the extending direction (axial direction) of the first connecting post 21. The interval between the locking holes can be set according to common installation gaps, such as 50mm, 80mm, or 100mm; the smaller the interval, the higher the adjustment accuracy. Furthermore, the multiple locking holes are also evenly distributed along the outer periphery of the first connecting post 21. For example, the multiple locking holes arranged along the extending direction of the first connecting post 21 can be defined as multiple hole groups. Each hole group also includes multiple locking holes. The multiple locking holes in the same hole group are arranged at intervals around the outer periphery of the first connecting post 21, and each locking hole in each hole group corresponds to the first connecting post 21 in the extending direction, so that the second locking part 232 can lock accordingly.

[0045] Correspondingly, the second locking part 232 is a locking pin that can mate with the locking hole, and its arrangement corresponds one-to-one with the locking hole. Multiple locking pins are evenly distributed around the outer periphery of the second connecting post 22. Each locking pin passes through a mounting hole on the second connecting post 22, with one end extending out of the surface of the second connecting post 22 (locked position), and the other end connecting to the reset member 233. Thus, when the locking pin is in the locked position, the length of the locking pin extending out of the surface of the second connecting post 22 is greater than the wall thickness of the first connecting post 21, ensuring a complete fit with the locking hole. This also allows construction personnel to apply an external force through the end of the locking pin that can overcome the force exerted by the reset member 233.

[0046] Multiple sets of circumferentially distributed locking holes and locking pins form a ring-shaped locking mechanism, ensuring that the force on the two connecting posts is evenly distributed across the entire outer circumference. During operation, by synchronously driving multiple locking pins (e.g., pulling the linkage ring to retract all locking pins simultaneously), the second locking part 232 can be switched to the release position, at which point the two connecting posts can slide relative to each other. When the sliding reaches the target length (where a set of locking holes aligns with the locking pins), the operating component is released, and the locking pins pop out synchronously under the action of the reset component 233, inserting into the corresponding locking holes to form a multi-point locking fixation.

[0047] This embodiment uses multiple sets of locking holes and locking pins distributed along the outer periphery to make the locking force evenly distributed around the outer periphery of the first connecting post 21 and the second connecting post 22 (e.g., each locking pin bears 1 / 4 of the load when locking at 4 points). Compared with single-point locking, the shear strength is increased by 3-4 times, which can effectively resist the tension of the lifeline and the impact of personnel falling, and avoid the locking components from breaking due to excessive local stress.

[0048] Meanwhile, the combination of the sleeve fit and the circumferential locking can also limit the relative rotation between the first connecting column 21 and the second connecting column 22. At the same time, when the support column 20 is subjected to lateral load, the multi-point locking can disperse the bending moment generated by the lateral load, reduce the lateral deflection deformation of the connecting column, and solve the problem that single column is prone to bending due to lateral load.

[0049] It is understandable that the angle steel connector 30 is usually composed of two interconnected flanges. The included angle formed by the inner sides of the two flanges is the inward included angle, and the included angle formed by the outer sides is the convex included angle.

[0050] In this embodiment, such as Figures 2-3 , Figure 8 As shown, the support column 20 and the angle steel connector 30 are connected at their inward angle by a hinge 40. The specific structure of the hinge 40 can be selected according to the stress requirements of the construction scenario. For example, for conventional high-altitude operations, a common hinge-type hinge 40 can be used, which consists of two leaf plates with mounting holes and a pin. One leaf plate is fixed to the end of the support column 20 by bolts, and the other leaf plate is welded or bolted to the inward angle of the angle steel connector 30. Alternatively, a bearing-type hinge 40 can be used, which reduces the frictional resistance when the support column 20 rotates by adding a rolling bearing at the pin of the hinge 40, while improving the wear resistance and load-bearing strength of the hinge 40.

[0051] In this embodiment, the support column 20 can be adjusted inward or outward relative to the angle steel connector 30 by extending and retracting its length and adjusting its angle with the angle steel connector 30, thereby adapting to mounting surfaces with different inclination directions. When the mounting surface is a slope (such as a roof slope), the support column 20 can be rotated to an angle perpendicular to the slope via the hinge 40, and its length can be adjusted by extending and retracting the support column 20, ultimately achieving a surface contact fit between the support column 20 and the mounting surface. When there are local protrusions on the mounting surface, the support column 20 can be slightly adjusted around the hinge 40 to avoid the protruding positions, preventing point contact and false support at the end of the support column 20 due to uneven force on the protrusions.

[0052] To facilitate understanding, this embodiment further analyzes the specific structure of the angle steel connector 30, such as... Figure 3 As shown, the angle steel connector 30 includes a first flange 31 and a second flange 32, which are connected at an angle along the extension direction of the angle steel connector 30 to form an integral load-bearing frame. It should be noted that this angled connection is not limited to a 90° right angle and can be flexibly designed according to the actual shape of the building structure. For example, for conventional right-angle wall columns, the first flange 31 and the second flange 32 can be connected perpendicularly at 90°, adapting to most right-angle installation scenarios; the first flange 31 and the second flange 32 can be connected at 60° or 120°, directly adapting to the corner shape of a specific installation surface through angle preset, reducing the need for on-site cutting or welding adjustments.

[0053] Multiple first connecting portions 33 are provided on the first flange 31 and / or the second flange 32 (or, the first flange 31 or the second flange 32), and the first connecting portions 33 are used to achieve a stable connection between the angle steel connector 30 and the building structure. Here, the specific shape of the first connecting portion 33 can be selected according to the fixing method. For example, if expansion bolts are used for fixing, the first connecting portion 33 can be a circular through hole; or, if it is necessary to fine-tune the fixing position to adapt to the slight offset of the mounting surface, the first connecting portion 33 can be a slotted hole, which can compensate for the deviation of the installation position by sliding in the long axis direction; or, if connecting steel structures (such as I-beams or channel steel), the first connecting portion 33 can be a welded bevel.

[0054] Furthermore, multiple first connecting parts 33 are arranged at intervals along the extension direction of the angle steel connector 30, thereby improving the connection strength between the angle steel connector 30 and the building structure. Based on the inward angle between the support column 20 and the angle steel connector 30 connected by the hinge 40, and combined with the limitation of the angle between the first flange 31 and the second flange 32 in this embodiment, one of the first flange 31 and the second flange 32 can maintain a stable connection with the support column 20, while the other forms a reliable connection with the building structure, thereby improving the overall installation strength of the lifeline hanging column on the building structure.

[0055] Based on any of the above embodiments, the edge of the wire hole 11 on the main column 10 is also covered with a buffer member 12. It is understood that the wire hole 11 is the channel through which the lifeline passes on the main column 10, and its edge is usually made of metal (if the main column 10 is angle steel or steel pipe, the edge is directly formed from steel). Although the edge is polished, there may still be minor burrs or sharp edges. The buffer member 12 covers the inner circumferential surface of the edge of the hole and the edges of the openings at both ends, forming a buffer covering layer at the edge of the wire hole 11. The material properties of the buffer member 12 isolate the lifeline from direct contact with the metal edge of the hole.

[0056] It should be understood that the material selection for the cushioning component 12 can be flexibly determined based on the construction site environment. For example, nitrile rubber, neoprene rubber, sponge rubber, canvas, etc., can be selected for the cushioning component 12.

[0057] In this embodiment, the edge of the threading hole 11, after being covered by the buffer 12, can effectively reduce the friction between the main column 10 and the lifeline, significantly extending the lifeline's service life and significantly reducing material costs and downtime caused by lifeline wear and replacement. Simultaneously, by isolating the threading hole 11 from direct friction with the lifeline, the buffer 12 ensures that the lifeline maintains a high initial breaking strength (e.g., 90%) throughout its service life, preventing insufficient strength due to wear and maintaining the effectiveness of the fall protection function.

[0058] In addition, the presence of the buffer 12 can absorb the energy generated by the collision and friction between the lifeline and the main column 10, and reduce the vibration amplitude generated by the lifeline in the process, while also playing a noise reduction role. This not only improves the construction environment, but also prevents the lifeline hanging points from loosening due to vibration, thus indirectly improving the overall stability.

[0059] In one embodiment, there are two support columns 20, and the included angles between the two support columns 20 and between the support column 20 and the main column 10 are all acute angles. This allows the lifeline hanging column to form a stable support system with multi-directional force, which not only improves the overall structural load-bearing capacity, but also further adapts to the force requirements of non-standard installation surfaces and solves the problem of insufficient stability of a single support column 20 in complex scenarios.

[0060] Specifically, it can be understood that a single support column 20 can only provide support in one direction, and is prone to lateral bending when the direction of force on the lifeline shifts. However, the acute angle distribution of the two support columns 20 forms a two-way restraint. For example, when the lifeline shifts to the left, the tension of the left support column 20 increases, while the right support column 20 provides a reverse restraint through the acute angle, keeping the main column 10 in a vertical state and improving its resistance to lateral displacement.

[0061] Based on any of the above embodiments, a connecting base 13 is provided at one end of the main column 10 for connecting to the building structure, and the main column 10 and the connecting base 13 are welded and fixed together. The connecting base 13 has multiple second connecting parts 131 located on opposite sides of the main column 10. The second connecting parts 131 are components that achieve fixation to the building structure. The opposite sides of the main column 10 refer to the sides perpendicular to the distribution direction of the support columns 20, ensuring that the fixing points formed by the second connecting parts 131 on the connecting base 13 are complementary to the force direction of the main column 10. The specific form of the second connecting parts 131 can be selected according to the type of building structure, such as a circular through hole, an oblong hole, etc., to allow pre-embedded bolts and other connecting components to connect to the building structure through the second connecting parts 131.

[0062] The lines connecting the multiple second connecting parts 131 are parallel to each other. For example, there are three second connecting parts 131 on the left side of the main column 10, and their center line is a straight line L1. There are three second connecting parts 131 on the right side of the main column 10, and their center line is a straight line L2. L1 and L2 are parallel to each other, ensuring that the main column 10 remains vertical in the vertical plane, does not tilt to the sides, and is stably connected to the building structure.

[0063] In this embodiment, the connecting base 13 increases the contact area with the building structure, thereby dispersing the pressure of the main column 10 to the building structure and avoiding concrete cracking or steel component deformation caused by excessive local pressure, thus solving the problem of easy loosening of the bottom end contact of the main column 10.

[0064] Following the above implementation method, as Figure 9 As shown, the main column 10 is an angle steel structure, specifically including a third flange 14 and a fourth flange 15. The third flange 14 and the fourth flange 15 are connected at an angle along the extension direction of the main column 10. The support column 20 is connected to the third flange 14 or the fourth flange 15 and is located between the third flange 14 and the fourth flange 15, that is, in the inner angle area of ​​the angle steel. This allows the tensile force transmitted by the support column 20 to be directly dispersed through the synergistic effect of the third flange 14 and the fourth flange 15, thus avoiding bending deformation of the main column 10 due to stress.

[0065] Furthermore, the ends of the third flange 14 and the fourth flange 15 are welded to the connecting base 13 to form an integral fixed structure, which evenly distributes the vertical and lateral forces borne by the main column 10 to both sides of the connecting base 13, avoiding uneven load on the base caused by single flange welding.

[0066] Similarly, the support column 20 can also be made of angle steel, round steel, square steel, etc. Figure 1 The diagram shown is a schematic of the support column 20 being made of angle steel. Figure 5 The diagram shown is a schematic of a support column 20 made of round steel. Figure 6 The diagram shown is a schematic of the support column 20 being made of square steel.

[0067] This embodiment also provides a lifeline connection structure, which includes the lifeline hanging posts provided in any of the above embodiments, and also includes a steel wire rope lifeline 50. In actual use scenarios, the lifeline hanging posts serve as support nodes for the steel wire rope lifeline 50, and multiple sets need to be arranged at intervals according to the length of the work area and the shape of the installation surface. The steel wire rope lifeline 50 serves as the main protection line for construction workers, with its two ends fixed to relatively independent wall columns (such as concrete wall columns or steel structure columns) on both sides of the work area, and its middle section sequentially connected to the wire-passing holes 11 of each set of hanging posts, forming a continuous line fixed at both ends and supported at multiple points in the middle.

[0068] It is understandable that the aforementioned "relatively independent wall columns" refers to fixed components that are not directly and rigidly connected to the building structure where the columns are installed.

[0069] This implementation method, through the telescopic function of the support column 20 (and the adjustable angle between the support column 20 and the angle steel connector 30), enables a tight fit between the lifeline hanging column and the installation surface in scenarios such as slopes, protrusions, and narrow spaces, without the need for additional welding of temporary connectors (such as gaskets or extension plates), thus allowing for the laying of continuous wire rope lines. For example, in a sloping roof scenario, by simply adjusting the length of the support column 20 (at an angle of 40 degrees with the hinge), the wire holes 11 of multiple sets of lifeline hanging columns can be kept at the same height, forming a continuous protective line and improving installation efficiency.

[0070] In summary, this lifeline connection structure, through the synergy of the highly adaptable lifeline hanging column and the steel wire rope lifeline 50, combines the dispersed support nodes with the continuous protective main line. This not only solves the adaptation problem of non-standard installation surfaces, but also ensures the continuity, reliability, and durability of the fall protection line, fully meeting the multiple requirements of high-altitude construction operations for efficient installation, safety protection, and long-term durability.

[0071] Finally, it should be noted that the above embodiments are only optional embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A lifeline hanging post, characterized in that, include: The main column is used to be installed vertically on the building structure. A through hole is provided on the top of the main column to provide space for the lifeline to pass through the main column. A support column, one end of which is connected between the two ends of the main column, and the other end of which is installed in the building structure via an angle steel connector; The support column includes a first connecting column and a second connecting column. The first connecting column and the second connecting column are movably connected end to end, and a locking structure is provided between the first connecting column and the second connecting column so that the support column can extend and retract relative to the main column while being locked and fixed at a preset position within the range of extension and retraction.

2. The lifeline hanging post as described in claim 1, characterized in that, The locking structure includes: Multiple first locking parts are provided at intervals along the extension direction of the support column on the first connecting column; The second locking part is movably disposed on the second connecting post. The second locking part has a locking position and a releasing position. When the second locking part is in the locking position, the second locking part can lock and cooperate with any of the first locking parts. When the second locking part is in the releasing position, the second locking part is unlocked from the first locking part. A reset member is provided between the second locking part and the second connecting post. The reset member acts on the second locking part to make the second locking part have a tendency to remain in the locked position.

3. The lifeline hanging post as described in claim 2, characterized in that, The first connecting post is sleeved on the second connecting post; The first locking part is a locking hole opened in the first connecting post. A plurality of locking holes are arranged at intervals along the extension direction of the first connecting post, and a plurality of locking holes are equally spaced in the outer peripheral direction of the first connecting post. The second locking part is a locking pin, which can move between a locking position protruding from the second connecting post and a release position retracted into the second connecting post. There are multiple locking pins, which are equally spaced around the outer periphery of the second connecting post and can correspond to multiple locking holes arranged circumferentially.

4. The lifeline hanging post as described in claim 1, characterized in that, The support column and the angle steel connector are connected by a hinge at their inward angles.

5. The lifeline hanging post as described in claim 4, characterized in that, The angle steel connector includes: First flange; and The second flange is connected to the first flange at an angle along the extension direction of the angle steel connector. The inner included angle between the first flange and the second flange forms the inward included angle, and the outer included angle between the first flange and the second flange forms the convex included angle. The first flange and / or the second flange are provided with a plurality of first connecting portions arranged at intervals along the extension direction of the angle steel connector, and the first connecting portions are used to connect the building structure.

6. The lifeline hanging post as described in claim 1, characterized in that, The edge of the thread hole is covered with a cushioning element.

7. The lifeline hanging post as described in claim 1, characterized in that, There are two support columns, and the included angles between the two support columns and between the support columns and the main column are all acute angles.

8. The lifeline hanging post as described in any one of claims 1-7, characterized in that, The main column is provided with a connecting base at one end for connecting to the building structure, and the main column and the connecting base are welded and fixed together. The connecting base is provided with a plurality of second connecting parts on opposite sides of the main column. The second connecting parts are used to connect the building structure, and the lines connecting the plurality of second connecting parts on both sides of the main column are parallel to each other.

9. The lifeline hanging post as described in claim 8, characterized in that, The main column is an angle steel structure, and the main column includes: Third wing edge; and The fourth flange, the third flange and the fourth flange are connected at an angle along the extension direction of the main column, and the support column is connected to the third flange or the fourth flange and is located between the third flange and the fourth flange; The ends of the third flange and the fourth flange are both welded to the connecting base.

10. A lifeline connection structure, characterized in that, include: The lifeline is attached to the post as described in any one of claims 1-9; The steel wire rope lifeline has two ends that are respectively used to connect to relatively independent wall columns. The middle part of the steel wire rope lifeline is connected to the main column through the wire hole, thus defining a continuous fall protection line.

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