Adjustable safety fence
By using universal hinges to connect the retractable upright and horizontal bar assemblies and intelligent warning components, the problem of insufficient adaptability and safety of existing guardrails has been solved, enabling rapid adjustment and stable installation, and improving the safety protection effect of the hanging hole area.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-26
AI Technical Summary
Existing safety guardrails are difficult to adapt to lifting holes of different sizes and shapes, are cumbersome to install and dismantle, have insufficient safety performance, and have poor installation adaptability, which cannot meet the needs of high-frequency material lifting operations in the lifting hole area.
It adopts a telescopic upright assembly and a telescopic crossbar assembly connected by universal hinges, combined with a magnetic base and expansion bolts for dual fixing, and is equipped with intelligent warning components for real-time monitoring and alarm, enabling quick adjustment and stable installation.
It improves the adaptability and safety of guardrails, reduces preparation time, lowers the risk of accidents, is suitable for various ground materials, and has quick adjustment and real-time warning functions.
Smart Images

Figure CN224413214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of safety protection equipment technology, specifically to an adjustable safety guardrail. Background Technology
[0002] In various locations such as building construction, industrial production, and hydroelectric power plant buildings, hoisting openings serve as crucial channels for the vertical transport of materials. Their safety is directly related to the safety of construction workers and the smooth progress of the overall construction process. Safety guardrails, as important facilities ensuring safety in the hoisting opening area, are of paramount importance in terms of performance and applicability.
[0003] However, current safety barriers have many shortcomings. First, in terms of structural adaptability, most existing safety barriers adopt a fixed structural design, making it difficult to flexibly adapt to hanging holes of different sizes and shapes. Whether it is a common round or square hanging hole, or an irregularly shaped hanging hole formed due to special needs, existing barriers often cannot achieve a tight fit, resulting in a significant reduction in protective effectiveness.
[0004] Secondly, regarding ease of operation and construction efficiency, traditional guardrails typically require complete disassembly when materials need to be hoisted through the lifting holes. This process is not only cumbersome and complex but also consumes a significant amount of time and manpower, severely impacting overall construction efficiency. This drawback is particularly pronounced in scenarios with stringent construction schedule requirements.
[0005] Then, from a safety perspective, existing fixed guardrails may not fit tightly against the edge of the hoisting hole, or their own structural design may not be sturdy enough, which may cause significant safety hazards in the hoisting hole area, making it easy for people to fall or objects to fall, posing a serious threat to the safety of on-site personnel and equipment.
[0006] Furthermore, in terms of installation methods, existing guardrails mostly use bolt fixing, which has poor adaptability to different ground materials. For example, there are significant differences in the stability and ease of installation on concrete floors and steel plate floors, making it difficult to guarantee reliable installation in various ground environments. At the same time, existing guardrails generally lack quick-locking functions and effective warning functions, failing to meet the actual needs of high-frequency material handling operations and high-safety protection in areas with lifting holes.
[0007] In summary, existing safety guardrails have significant shortcomings in terms of structural adaptability, operational efficiency, safety performance, installation adaptability, and functional integrity, making it difficult to meet the safety protection requirements of areas with lifting holes. Therefore, there is an urgent need for an adjustable safety guardrail that can adapt to various sizes and shapes of lifting holes, has quick operation and reliable locking functions, and can meet diverse installation conditions. Utility Model Content
[0008] To address the problems existing in the prior art, this utility model provides an adjustable safety guardrail, aiming to solve the issues of existing safety guardrails being unable to adapt to different sizes and shapes of hanging holes, being cumbersome to install and disassemble, and having insufficient safety performance. To achieve the above objectives, this utility model provides the following technical solution:
[0009] An adjustable safety barrier includes:
[0010] The telescopic pole assembly is provided in multiple sets, and the multiple sets of telescopic pole assemblies are arranged vertically.
[0011] A retractable crossbar assembly is provided between two adjacent retractable upright assembly groups, and the retractable crossbar assembly is perpendicular to the retractable upright assembly; a connecting member is provided between the retractable crossbar assembly and the retractable upright assembly to allow the retractable crossbar assembly and the retractable upright assembly to be rotatably adjustable;
[0012] A fixing component is located at the bottom of the telescopic pole assembly for fixed connection with the ground.
[0013] Furthermore, the retractable pole assembly includes a first pole and a second pole; the first pole has a cavity formed inside, and the upper side wall of the first pole is provided with a first pin hole; the second pole is sleeved with the first pole and movably connected to the first pole; the side wall of the second pole is provided with a plurality of first limiting structures, which are used to cooperate with the first pin hole to fix the length of the retractable pole assembly.
[0014] Furthermore, the retractable crossbar assembly includes a first crossbar and two second crossbars; the first crossbar has a cavity, and its sidewall has at least two second pin holes; the two second crossbars are respectively movably sleeved on both ends of the first crossbar; the sidewall of the second crossbar has multiple second limiting structures, which are used to cooperate with the second pin holes to fix the length of the retractable crossbar assembly.
[0015] Furthermore, one end of the connector is fixedly connected to the telescopic crossbar assembly, and the other end is detachably connected to the telescopic upright assembly.
[0016] Furthermore, a connecting sleeve is fixedly provided on the telescopic pole assembly, and a T-shaped groove is formed on the connecting sleeve along its axial direction; a slider that cooperates with the T-shaped groove is provided at one end of the connecting member near the telescopic pole assembly; a fixing member is also provided on the T-shaped groove for fixing the slider and the T-shaped groove relatively after they are engaged in place.
[0017] Furthermore, the fixing element is a fixing pin, which movably passes through one side wall of the T-shaped slide groove; the slider is provided with a fixing hole for cooperating with the fixing pin.
[0018] Furthermore, the connector is a universal hinge.
[0019] Furthermore, it also includes an intelligent warning component; the intelligent warning component includes a sensor element, an alarm, and a signal transmitter, the signal transmitter being wirelessly connected to the sensor element, and the alarm being electrically connected to the sensor element.
[0020] Furthermore, the sensor element is a pressure sensor and / or an electronic level.
[0021] Furthermore, the fixing component includes a magnetic base and an expansion bolt, the expansion bolt being threadedly connected to the magnetic base, and the magnetic base being detachably connected to the bottom of the telescopic pole assembly.
[0022] The beneficial effects of this utility model are:
[0023] 1. The adjustable safety guardrail provided by this utility model has strong adaptability. The ring-shaped main frame connected by universal hinges can be freely adjusted in shape and can fit well with different contours of hanging holes such as circles and squares. It effectively solves the problem of poor applicability of traditional fixed structure guardrails to hanging holes of different shapes, significantly improves the versatility of the guardrail, and can be flexibly applied in a variety of work scenarios.
[0024] 2. This utility model, through the telescopic upright assembly and the fixed buckle, can quickly complete the erection and folding of the guardrail, meeting the frequent opening and closing requirements of the hoisting hole for lifting operations; the three-section telescopic crossbar is connected by limit pins, which can quickly complete the length adjustment, greatly improving the work efficiency and reducing the preparation time.
[0025] 3. This utility model features dual fixing and safety warning functions. The magnetic base and expansion bolt dual-mode fixing device are suitable for various ground materials such as steel plates and concrete, ensuring that the guardrail can be stably installed on different ground surfaces. The intelligent warning system monitors the locking status of the crossbar and the tilt angle of the guardrail in real time through pressure sensors and a level. When the crossbar is not locked or the tilt angle exceeds 5°, a dual mechanism of sound and light alarm and wireless signal transmitter to send warning information to the monitoring terminal effectively improves the safety protection level of the hanging hole area and reduces the risk of safety accidents.
[0026] 4. This utility model has a simple and practical structure. It adopts a modular design, with few parts that are easy to process and produce. No special tools are required for installation, which reduces production and manufacturing costs and maintenance difficulties during use, and improves the economy and practicality of the guardrail. Attached Figure Description
[0027] Figure 1 A three-dimensional structural diagram of the adjustable safety guardrail provided by this utility model;
[0028] Figure 2 A schematic diagram of the adjustable safety guardrail in its retracted state provided by this utility model;
[0029] Figure 3 A partial structural schematic diagram of the adjustable safety guardrail provided by this utility model;
[0030] Figure 4 A schematic diagram of the retractable crossbar assembly provided by this utility model;
[0031] Figure 5 A schematic diagram of the retractable crossbar assembly provided by this utility model in its retracted state;
[0032] Figure 6 A schematic diagram of the retractable pole assembly provided by this utility model;
[0033] Figure 7 A schematic diagram of the retractable pole assembly provided by this utility model in its retracted state;
[0034] Figure 8 A schematic diagram of the structure of the connecting sleeve provided by this utility model;
[0035] Figure 9 This is a schematic diagram of the structure of the connecting sleeve and universal hinge provided by this utility model.
[0036] The attached figures are labeled as follows: 1. Telescopic upright assembly; 11. First upright; 12. First pin hole; 13. Second upright; 14. First limiting structure; 15. Connecting sleeve; 16. T-shaped slide groove; 17. Fixing component; 2. Telescopic crossbar assembly; 21. First crossbar; 22. Second pin hole; 23. Second crossbar; 24. Second limiting structure; 3. Fixing component; 31. Magnetic base; 32. Expansion bolt; 4. Connecting component; 41. Slider; 5. Intelligent warning component. Detailed Implementation
[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.
[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0039] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.
[0040] In the description of this utility model, "multiple" means two or more.
[0041] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.
[0042] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.
[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0044] Example 1
[0045] See attached Figures 1-9 This embodiment provides an adjustable safety barrier, such as... Figure 1 As shown, the safety guardrail includes multiple sets of vertically arranged telescopic poles 1, and vertical telescopic crossbars 2 between adjacent pole sets. They can be connected by connectors 4. The bottom of the pole sets is provided with fixing components 3 for fixed connection with the ground. The safety guardrail as a whole can be adjusted according to actual needs and is suitable for safety protection in various scenarios.
[0046] Specifically, such as Figure 6 and Figure 7 As shown, the retractable pole assembly 1 includes a first pole 11 and a second pole 13. The first pole 11 has an internal cavity, and a first pin hole 12 is provided at the upper end of its upper side wall. The second pole 13 is sleeved and movably connected to the first pole 11, and can slide up and down within the cavity of the first pole 11. The first pole 11 and the second pole 13 can be made of cylindrical steel pipe or plastic pipe. The side wall of the second pole 13 is provided with multiple first limiting structures 14, which are spaced apart. For example, the first limiting structure 14 can be an elastic buckle, which is held outward by a spring and retracts when pressed. When it is necessary to adjust and fix the length of the retractable pole assembly 1, the corresponding first limiting structure 14 is inserted into the first pin hole 12 of the first pole 11 to fix the length. By inserting the first limiting structures 14 at different height positions into the first pin holes 12, the height of the retractable pole assembly 1 can be adjusted. It should be noted that multiple second uprights 13 can be provided, with multiple second uprights 13 nested in layers. For example, two second uprights 13 can be provided, namely second upright 13-1 and second upright 13-2. A first pin hole 12 is provided on the upper end of the upper side wall of the first upright 11; multiple first limiting structures 14 are provided on the second upright 13 near the end of the first upright 11, and a pin hole is provided on the end away from the first upright 11; multiple limiting structures that cooperate with the pin hole are provided on the second upright 13-2.
[0047] Specifically, such as Figure 4 and Figure 5 As shown, the retractable crossbar assembly 2 includes a first crossbar 21 and two second crossbars 23. The first crossbar 21 has an internal cavity, and its side wall has two second pin holes 22, which can be located at either end of the first crossbar 21. The two second crossbars 23 are movably sleeved at both ends of the first crossbar 21 and can slide left and right within it. The side wall of each second crossbar 23 has multiple second limiting structures 24, which are spaced apart. When it is necessary to adjust and fix the length of the retractable crossbar assembly 2, the corresponding second limiting structure 24 is inserted into the second pin hole 22 of the first crossbar 21 to fix the length. For example, the second limiting structure 24 can also be an elastic buckle.
[0048] A connecting member 4 is provided between the retractable crossbar assembly 2 and the retractable upright assembly 1 to allow for adjustable rotation between the two. Specifically, the connecting member 4 can be a universal hinge, which can be implemented using existing technology. Figure 8 and Figure 9As shown, one end of the universal hinge is welded and fixedly connected to the telescopic crossbar assembly 2, specifically to the end of the second crossbar 23, which can be fixed by welding; the other end is detachably connected to the telescopic upright assembly 1. Through the characteristics of the universal hinge, the rotation between the telescopic crossbar assembly 2 and the telescopic upright assembly 1 is adjustable. A connecting sleeve 15 is welded and fixedly provided on the telescopic upright assembly 1, and a T-shaped groove 16 is formed along its axial direction on the connecting sleeve 15. A slider 41 is provided at the end of the universal hinge near the telescopic upright assembly 1, which mates with the T-shaped groove 16. The size of the slider 41 matches the T-shaped groove 16. A fixing member 17 is also provided on the T-shaped groove 16 for fixing the slider 41 relatively after it is engaged with the T-shaped groove 16. The fixing member 17 can be a fixing pin, which movably passes through one side wall of the T-shaped groove 16. The slider 41 has a fixing hole for mates with the fixing pin. Once the slider 41 has slid to the appropriate position within the T-shaped groove 16, insert the fixing pin into the fixing hole to achieve relative fixation between the connector 4 and the telescopic pole assembly 1.
[0049] The bottom of the retractable pole assembly 1 is also equipped with a fixing component 3 for fixed connection with the ground. Specifically, the fixing component 3 includes a magnetic base 31 and an expansion bolt 32. The expansion bolt 32 can be of M10 specification and is threadedly connected to the magnetic base 31. The magnetic base 31 can be of specifications of 100mm in diameter, 20mm in thickness, and 1000N magnetic force, and can be detachably connected to the bottom of the retractable pole assembly 1 via threads. When it is necessary to fix the guardrail to a metal ground, it can be directly fixed by the magnetic force of the magnetic base 31; when it is fixed to a non-magnetic ground such as concrete, the magnetic base 31 is fixed to the ground by the expansion bolt 32.
[0050] This utility model provides an adjustable safety guardrail with strong adaptability. The ring-shaped main frame, connected by universal hinges, can be freely adjusted in shape to fit well with lifting holes of different contours, such as circles and squares. This effectively solves the problem of poor applicability of traditional fixed structure guardrails to lifting holes of different shapes, significantly improving the versatility of the guardrail and allowing for flexible application in various work scenarios. At the same time, the telescopic upright assembly 1, in conjunction with the fixing buckle, can quickly complete the erection and folding operations of the guardrail, meeting the frequent opening and closing requirements of lifting hole operations. The three-section telescopic crossbar, connected by limit pins, can quickly complete the length adjustment, greatly improving work efficiency and reducing work preparation time.
[0051] Example 2
[0052] See attached Figures 1-9Based on Embodiment 1, this embodiment further provides an adjustable safety barrier. The difference between this safety barrier and the one provided in Embodiment 1 is that it also includes an intelligent warning component 5. The intelligent warning component 5 includes sensor elements, an alarm, and a signal transmitter. The sensor elements can be pressure sensors and electronic levels. The pressure sensor model can be PT124G-111, which can be installed on the retractable crossbar assembly 2 to detect the pressure on the crossbar. The electronic level model can be DL-100, which can be installed on the retractable upright assembly 1 to detect the verticality of the upright; it can also be installed on the retractable crossbar assembly 2 to detect the horizontality of the crossbar. The alarm can be an audible and visual alarm, model LTE-1101J, electrically connected to the sensor elements. When the sensor elements detect an abnormal situation, such as the pressure on the retractable crossbar assembly 2 exceeding a set threshold or the verticality of the retractable upright assembly 1 exceeding a set range, the sensor elements send a signal to the alarm, which then emits an audible and visual alarm. The signal transmitter can use a Bluetooth module, model HC-05, to wirelessly connect with the sensor element and send the information detected by the sensor element to the relevant receiving device to achieve remote monitoring.
[0053] The adjustable safety railing provided by this utility model is used as follows:
[0054] During installation, adjust the shape of the ring frame composed of the telescopic upright assembly 1 and the telescopic crossbar assembly 2 according to the shape of the lifting hole. Secure the safety railing to the ground using the magnetic base 31 or expansion bolts 32. In use, erect and lock the second upright 13 of the telescopic upright assembly 1, adjust the second crossbar 23 to the appropriate length and lock it, and the railing enters its working state. Before hoisting materials, the safety railing can be adjusted to its fully telescopic state to create space for hoisting; after hoisting, the railing structure can be quickly restored. The intelligent warning component 5 monitors the installation status of the railing and the locking status of the crossbars in real time to ensure safety protection in the lifting hole area.
[0055] The above embodiments are only used to illustrate the technical solutions 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 solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.
Claims
1. An adjustable safety guardrail, characterized in that, include: The telescopic pole group (1) is configured to be multiple groups, and the multiple groups of telescopic pole groups (1) are vertically arranged; A telescopic crossbar assembly (2) is provided between two adjacent telescopic upright assembly (1), and the telescopic crossbar assembly (2) is perpendicular to the telescopic upright assembly (1); a connector (4) is provided between the telescopic crossbar assembly (2) and the telescopic upright assembly (1) so that the telescopic crossbar assembly (2) and the telescopic upright assembly (1) can be rotated and adjusted; The fixing component (3) is located at the bottom of the telescopic pole assembly (1) and is used for fixed connection with the ground.
2. The adjustable safety guardrail according to claim 1, characterized in that: The retractable pole assembly (1) includes a first pole (11) and a second pole (13); the first pole (11) has a cavity, and the upper side wall of the first pole (11) is provided with a first pin hole (12); the second pole (13) is sleeved with the first pole (11) and movably connected to the first pole (11); the side wall of the second pole (13) is provided with a plurality of first limiting structures (14), and the first limiting structures (14) are used to cooperate with the first pin hole (12) to fix the length of the retractable pole assembly (1).
3. The adjustable safety guardrail according to claim 1, characterized in that: The retractable crossbar assembly (2) includes a first crossbar (21) and two second crossbars (23); the first crossbar (21) has a cavity, and the side wall of the first crossbar (21) is provided with at least two second pin holes (22); the two second crossbars (23) are respectively movably sleeved on both ends of the first crossbar (21); the side wall of the second crossbar (23) is provided with a plurality of second limiting structures (24), and the second limiting structures (24) are used to cooperate with the second pin holes (22) to fix the length of the retractable crossbar assembly (2).
4. An adjustable safety guardrail according to claim 1, characterized in that: One end of the connector (4) is fixedly connected to the telescopic crossbar assembly (2), and the other end is detachably connected to the telescopic upright assembly (1).
5. An adjustable safety guardrail according to claim 4, characterized in that: The telescopic pole assembly (1) is fixedly provided with a connecting sleeve (15), and the connecting sleeve (15) is provided with a T-shaped groove (16) along its axial direction; the connector (4) is provided with a slider (41) that cooperates with the T-shaped groove (16) at one end near the telescopic pole assembly (1); the T-shaped groove (16) is also provided with a fixing member (17) for fixing the slider (41) and the T-shaped groove (16) relatively after they are engaged.
6. An adjustable safety guardrail according to claim 5, characterized in that: The fixing member (17) is a fixing pin, which is movably inserted through one side wall of the T-shaped slide (16); the slider (41) is provided with a fixing hole for cooperating with the fixing pin.
7. An adjustable safety guardrail according to claim 1, characterized in that: The connector (4) is a universal hinge.
8. An adjustable safety guardrail according to claim 1, characterized in that: It also includes an intelligent warning component (5); the intelligent warning component (5) includes a sensor element, an alarm and a signal transmitter, the signal transmitter is wirelessly connected to the sensor element, and the alarm is electrically connected to the sensor element.
9. An adjustable safety guardrail according to claim 8, characterized in that: The sensor element is a pressure sensor and / or an electronic level.
10. An adjustable safety guardrail according to claim 1, characterized in that: The fixing component (3) includes a magnetic base (31) and an expansion bolt (32). The expansion bolt (32) is threadedly connected to the magnetic base (31), and the magnetic base (31) is detachably connected to the bottom of the telescopic pole assembly (1).