Construction engineering construction safety suspension device

By dynamically adjusting the telescopic inclined support rod and damper, the problem of force imbalance in the suspension device was solved, thereby improving the flexibility and safety of the suspension device during construction.

CN224314551UActive Publication Date: 2026-06-02ZHEJIANG ZHONGZHAN CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZHONGZHAN CONSTR CO LTD
Filing Date
2025-06-12
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The fixed support structure of existing construction suspension devices is difficult to adjust after installation, leading to stress imbalance and stress concentration. It cannot adapt to frequent changes in the connection points during construction, affecting the flexibility and safety of the device.

Method used

It adopts a telescopic inclined support rod and damper, combined with a pulley sliding and pin positioning system to form a dynamic triangular stable structure. The length and angle of the support rod can be adjusted by mechanical linkage and damper to achieve adaptive adjustment.

Benefits of technology

This ensures that the triangular support structure is always under stable stress, prevents stress concentration, enhances the stability and safety of the hanger movement, simplifies the operation process, and reduces the risk of failure.

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Abstract

The utility model relates to building construction suspension technical field, concretely, relate to a kind of construction engineering construction safety suspension device. It includes horizontal support pole, adjustable length's oblique support pole and anchoring base plate, oblique support pole is telescopic structure and is internally provided damper, its upper end is rotatably connected with the hanger of horizontal support pole on connecting arm, lower end is rotatably connected with anchoring base plate through flange, horizontal support pole is I-shaped steel component, is provided with positioning hole and is slidably connected hanger, hanger is slid in the groove of horizontal support pole through pulley, position fixing is realized with the cooperation of bolt and positioning hole, its below is connected bumper and hook in proper order, anchoring base plate is equipped with evenly distributed fixed hole and rear anti-skid pad, and installation stability is enhanced. The utility model is through the telescopic structure of oblique support pole and damper cooperation, can dynamically adjust support length according to hanger position and buffer impact, form triangular stable structure, avoid stress concentration.
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Description

Technical Field

[0001] This utility model relates to the field of building construction suspension technology, specifically to a building construction safety suspension device. Background Technology

[0002] In construction engineering, suspended structures serve as crucial safety equipment for high-altitude operations, widely used in scaffolding, suspended platforms, and temporary support systems. Existing suspended structures typically employ fixed support structures, usually consisting of rigid horizontal bars and diagonal braces connected by welding or bolts to form a triangular support system. This design distributes loads through a stable geometric structure, meeting foundation construction requirements. The horizontal support bars are fixedly connected to the anchor plate, while the diagonal support bars are connected to the plate or horizontal bars at a fixed angle.

[0003] However, while fixed support structures provide basic stability, their structural parameters (such as support rod length and angle) are difficult to adjust after installation. The fixed-length, diagonal support rods cannot be dynamically adjusted according to the actual position of the connector, causing the stress state of the triangular support structure to become unbalanced as the connector moves, easily leading to stress concentration or localized torsion. This static design is ill-suited to the frequent changes in connection points during construction, limiting the flexibility and safety of the installation. Utility Model Content

[0004] The purpose of this utility model is to provide a construction safety suspension device to solve the problems of stress imbalance and insufficient dynamic load buffering capacity of fixed support structures.

[0005] To achieve the above objectives, a construction safety suspension device is provided, comprising a horizontal support rod, an inclined support rod, and an anchoring base plate. The horizontal support rod is fixedly connected to the anchoring base plate, and an adjustable-length inclined support rod is provided below the horizontal support rod.

[0006] The inclined support rod is a telescopic structure and has a damper inside;

[0007] A flange is also fixedly connected to the anchoring base plate. The flange is located below the transverse support rod, and the oblique support rod is rotatably connected to the flange.

[0008] A hook is slidably connected to the horizontal support rod, and a connecting arm with a hinged bushing is fixedly connected to the tail end of the hook. The oblique support rod is rotatably connected to the connecting arm.

[0009] In the above technical solution, the two ends of the inclined support rod are rotatably connected to the anchor plate through flanges and hinged to the hanger through connecting arms, forming a double rotating pair adaptive structure. This allows the angle of the inclined support to be automatically adjusted as the hanger slides. Combined with the sliding of the pulleys on the transverse support rod and the pin positioning system, a dynamic triangular stable structure is constructed, which solves the stress concentration problem caused by the fixed rod length and angle in traditional suspension devices.

[0010] Based on this, the transverse support rod is an I-shaped steel component, and multiple sets of equally spaced positioning holes are opened on the transverse support rod, with a limit block fixedly connected to the end of the transverse support rod;

[0011] The connector is also provided with a connection hole, which, together with the pin and the positioning hole, allows the connector and the horizontal support rod to be fixedly connected.

[0012] In this technical solution, the transverse support rod adopts an I-shaped steel component. Its I-section structure, through the combination of upper and lower flanges and web, forms a main support with high bending stiffness. At the same time, the groove structure provides a precise guide track for the sliding of the pulley, enhancing the stability of the hanger's movement. Multiple sets of equally spaced positioning holes, through standardized hole spacing design, enable the hanger to be quickly positioned at different work positions. Combined with the mechanical interlocking of the pin, rigid fixation is achieved, which improves adjustment efficiency compared to traditional bolt connections. The setting of the end limit block prevents the hanger from slipping through physical obstruction, forming a safety redundancy protection.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In this construction safety suspension device, the telescopic mechanism inside the inclined support rod can adjust the rod length according to the real-time position of the hanger, thereby ensuring that the triangular support structure is always in a stable stress state and preventing structural distortion or stress concentration caused by a fixed length. The position of the hanger will affect the distribution ratio of the suspension load on the horizontal support rod and the inclined support rod. When the hanger is close to the middle of the horizontal support rod, the axial pressure on the inclined support rod is smaller and the required length is shorter. However, when the hanger is close to the end of the horizontal support rod, the inclined support rod needs to bear greater tension or compression. At this time, it is necessary to increase the support angle by extending the rod to balance the load and maintain structural stability. At the same time, the damper inside the inclined support rod can not only buffer the impact load, but also provide damping force during the extension and retraction of the rod, suppressing the structural vibration caused by the rapid movement of the hanger, and ensuring the smoothness and safety of the length adjustment process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the connector of this utility model.

[0017] The meanings of the labels in the diagram are as follows:

[0018] 1. Horizontal support rod; 11. Positioning hole; 12. Limiting block; 2. Diagonal support rod; 21. Flange; 22. Connecting arm; 3. Anchor base plate; 31. Fixing hole; 32. Anti-slip pad; 4. Hanger; 41. Pulley; 42. Pin; 43. Buffer; 44. Hook. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] Please see Figure 1 As shown, the purpose of this embodiment is to provide a construction safety suspension device, including a horizontal support rod 1, an inclined support rod 2, and an anchoring base plate 3. The horizontal support rod 1, as the main horizontal load-bearing component, adopts an I-shaped cross-section design, balancing strength and lightweight requirements. Multiple rows of equidistantly distributed positioning holes 11 are formed on its surface to provide a positional reference for the sliding of the hanger 4. A limiting block 12, fixedly connected by bolts, is provided at its end to prevent the hanger 4 from detaching from the horizontal support rod 1. Figure 2As shown, a pulley 41 is embedded inside the hanger 4. Through the cooperation of the pulley 41 with the groove of the transverse support rod 1, smooth movement along the length of the rod is achieved. When the hanger 4 moves to the target position, the operator inserts the pin 42 into the corresponding positioning hole 11 to lock the position. This retains the stability of the traditional fixed structure while giving the device the ability to flexibly adjust the suspension point. Below the hanger 4, a buffer 43 connects to the hook 44. The buffer 43 uses a composite elastic material and damping structure to absorb the impact energy generated by equipment shaking or sudden loads during construction, preventing damage to the support structure from instantaneous forces. The interface of the hook 44 adopts a standardized design to ensure quick adaptation and reliable connection with equipment such as suspended platforms and safety ropes.

[0023] The upper end of the inclined support rod 2 is rotatably connected to the hanger 4 via a connecting arm 22, and the lower end is rotatably connected to the anchor plate 3 via a flange 21. When the hanger 4 slides along the transverse support rod 1, the hinge structure of the connecting arm 22 forces the inclined support rod 2 to extend and retract. For example, when the hanger 4 moves towards the end of the transverse support rod 1, the rotation angle of the connecting arm 22 increases, and the inclined support rod 2 automatically extends under tension; conversely, when the hanger 4 moves towards the middle, the angle of the connecting arm 22 decreases, and the inclined support rod 2 contracts under pressure. This passive extension and retraction mechanism relies entirely on mechanical linkage, requiring no additional drive device, which simplifies the operation process and reduces the risk of failure. The inclined support rod 2 integrates a damper, which not only buffers external impacts but, more importantly, provides controllable resistance during extension and retraction to prevent the rod from shaking or rebounding due to the rapid movement of the hanger 4. For example, when the construction platform suddenly stops or a sudden change in wind direction causes vibration, the damper absorbs energy through internal hydraulic pressure or spring structure to ensure that the length change of the inclined support rod 2 is stable and controllable, and to prevent the support structure from becoming unstable due to instantaneous impact.

[0024] Furthermore, the anchoring base plate 3 has multiple sets of evenly distributed fixing holes 31, and an anti-slip pad 32 is fixedly connected to the rear side of the anchoring base plate 3.

[0025] The anchoring base plate 3 serves as the connection interface between the device and the building structure. Its surface is distributed with multiple sets of fixing holes 31, allowing for flexible installation on different building structures (such as concrete walls and steel beams) using bolts or expansion bolts. The array-like layout of the fixing holes 31 ensures uniform force distribution at the anchoring points, preventing base plate deformation caused by localized stress concentration. An anti-slip pad 32, made of high-friction coefficient rubber or polyurethane material, is attached to the back of the base plate to increase friction and prevent slippage of the device under long-term vibration or wind load. The flange 21 serves as the connection hub between the inclined support rod 2 and the anchoring base plate 3. A rubber gasket is installed at the connection point with the inclined support rod 2, allowing the inclined support rod 2 to swing slightly in the horizontal and vertical directions, thus adapting to slight unevenness of the building surface or installation angle deviations and ensuring effective transmission of support force.

[0026] The overall stability of the device stems from the dynamic balance principle of the triangular support structure. The transverse support rod 1, the diagonal support rod 2, and the anchoring base plate 3 form a variable triangle, whose geometry adjusts in real time according to the position of the hanger 4. Traditional fixed triangular supports, due to their fixed angles and lengths, are prone to stress imbalance when the suspension point shifts. This device, however, maintains the optimal stress state of the triangle through the passive extension and retraction of the diagonal support rod 2. For example, when the hanger 4 approaches the end of the transverse support rod 1, the diagonal support rod 2 automatically extends, increasing the support angle to balance the increased torque; when the hanger 4 moves to the middle, the diagonal support rod 2 retracts, decreasing the support angle to reduce the axial pressure on the rod. This dynamic adjustment ensures that the bending stress of the transverse support rod 1 and the tensile and compressive stress of the diagonal support rod 2 are always rationally distributed, avoiding the risk of structural deformation or fracture caused by localized overload.

[0027] In actual construction scenarios, operators first fix the anchor base plate 3 to the building structure, and then connect the horizontal support rod 1 to the base plate. The hanger 4 slides along the horizontal support rod 1 to the desired suspension position and is locked by the pin 42. At this time, the length of the diagonal support rod 2 is automatically matched through mechanical linkage. The entire process does not require measuring angles or manually adjusting the rod length, improving work efficiency. In addition, the detachable design of the device facilitates transportation and reuse, making it suitable for complex construction site environments where multiple trades are working simultaneously.

[0028] Working principle: When the connector 4 slides along the transverse support rod 1, the connecting arm 22 connected to its tail end drives the oblique support rod 2 to passively extend and retract. When the connector 4 moves towards the end of the transverse support rod 1, the connecting arm 22 rotates, forcing the oblique support rod 2 to extend. Conversely, when the connector 4 moves towards the middle, the oblique support rod 2 contracts. The damper inside the oblique support rod 2 suppresses the extension and retraction speed through fluid resistance or elastic deformation, ensuring smooth adjustment. The transverse support rod 1, the oblique support rod 2, and the anchoring base plate 3 form a variable triangular support structure. Through geometric adaptive adjustment, the position of the connector 4 is always matched, so that the load along the bending moment of the transverse support rod 1 and the axial force of the oblique support rod 2 are reasonably distributed, maintaining the structural mechanical balance.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A construction safety suspension device, comprising a horizontal support rod (1), an inclined support rod (2), and an anchoring base plate (3), wherein the horizontal support rod (1) is fixedly connected to the anchoring base plate (3), characterized in that: Below the horizontal support rod (1) is an adjustable-length inclined support rod (2), wherein: The inclined support rod (2) is a telescopic structure and has a damper inside; A flange (21) is also fixedly connected to the anchor base plate (3). The flange (21) is located below the transverse support rod (1). The oblique support rod (2) is rotatably connected to the flange (21). A hook (4) is slidably connected to the transverse support rod (1), and a connecting arm (22) with a hinged bushing is fixedly connected to the tail end of the hook (4). The oblique support rod (2) is rotatably connected to the connecting arm (22).

2. The construction safety suspension device according to claim 1, characterized in that: The transverse support rod (1) is an I-shaped steel component. Multiple sets of equally spaced positioning holes (11) are provided on the transverse support rod (1). A limit block (12) is fixedly connected to the end of the transverse support rod (1).

3. The construction safety suspension device according to claim 2, characterized in that: The hanger (4) is equipped with a pulley (41) inside, and the hanger (4) slides in the groove of the transverse support rod (1) through the pulley (41).

4. The construction safety suspension device according to claim 3, characterized in that: The connector (4) is also provided with a connection hole, which, together with the pin (42) and the positioning hole (11), makes the connector (4) and the horizontal support rod (1) fixedly connected.

5. The construction safety suspension device according to claim 4, characterized in that: A buffer (43) is fixedly connected below the hanger (4), and a hook (44) is fixedly connected below the buffer (43).

6. The construction safety suspension device according to claim 1, characterized in that: The anchoring base plate (3) has multiple sets of evenly distributed fixing holes (31), and an anti-slip pad (32) is fixedly connected to the rear side of the anchoring base plate (3).