A kind of protection device for steel structure engineering convenient to disassemble
By using a self-locking motor-driven bidirectional threaded rotating rod and threaded adjusting rod structure, the problems of complex disassembly and insufficient stability of existing devices are solved, enabling rapid disassembly and stable positioning of protective devices for steel structure engineering, thus improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGKUI TRANSPORTATION CONSTRUCTION GROUP CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-19
AI Technical Summary
Existing steel structure engineering protective devices are cumbersome to dismantle, relying on spring ejection reset and gas extraction. The process is complex and unstable, making it difficult to complete dismantling quickly, and there are also safety hazards and insufficient protective stability.
The device employs a combination structure of a self-locking motor-driven bidirectional threaded rotating rod and a movable nut, along with an internal threaded sleeve and a threaded adjusting rod, to achieve rapid opening and closing of the L-shaped side support plate and stable insertion of the positioning cone, simplifying the disassembly process and enhancing the stability of the device.
It enables rapid disassembly and stable positioning of protective devices, improves construction efficiency, reduces operational difficulty and physical exertion, and ensures safety protection in complex environments.
Smart Images

Figure CN224381223U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction safety protection technology, specifically a protective device for steel structure engineering that is easy to disassemble. Background Technology
[0002] During the construction of steel structure projects, when steel beams are stacked on the ground in multiple layers, they are easily affected by external forces such as accidental contact by personnel or mechanical collisions due to the lack of effective barriers. This can cause a single steel beam to slip off, or even cause the entire stack of steel beams to overturn, resulting in material damage and personal injury, and increasing construction risks. Therefore, it is necessary to use protective devices to support and protect the stacked steel beams.
[0003] The existing patent document CN222539521U discloses a safety protection device for steel beams in steel structure engineering. When the safety protection components need to be removed, relevant personnel control the solenoid valve through the control panel to open it. The ejection potential energy of the first spring and the second spring drives the first movable rod and the two second movable rods to reset. This causes the first movable rod and the two second movable rods to move the positioning fixing plate and the L-shaped fixing plate away from the stacked steel beams, thereby allowing the external gas to be extracted from the inside of the first movable through slot, the S-shaped connecting through hole and the second movable through slot through the second pipe, so as to facilitate the movement and reset of the first movable rod and the two second movable rods.
[0004] However, existing protective devices used in steel structure engineering have drawbacks in terms of convenience and stability during use: First, disassembly is cumbersome, relying on spring ejection for reset in conjunction with solenoid valves and gas extraction, making the process complex and difficult to complete quickly; second, long-term reliability is poor, as the springs are prone to elastic decay, causing components to fail to reset; third, there are significant safety hazards, as uneven force during spring ejection can easily damage the protective device and steel beams, posing a risk to surrounding personnel; and fourth, the protective stability is insufficient, as relying on spring elasticity for positioning is insufficient to withstand high-intensity construction vibrations and continuous external impacts, making it difficult to guarantee the protective effect. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] The purpose of this utility model is to provide a protective device for steel structure engineering that is easy to disassemble, so as to solve the problems of convenience and stability defects in the existing protective devices for steel structure engineering mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a protective device for steel structure engineering that is easy to disassemble, including a main support plate, a reserved through groove is provided on the main support plate, a self-locking motor is fixedly installed on one side inside the reserved through groove, and a bidirectional threaded rotating rod is fixedly connected to the transmission end of the self-locking motor;
[0009] The end of the bidirectional threaded rotor away from the self-locking motor is connected to the reserved through slot via a bearing. The outer surface of the bidirectional threaded rotor is connected to a movable nut via a thread. The movable nut can slide along the guide structure of the reserved through slot. An L-shaped side support plate is connected to the side of the movable nut.
[0010] As a further improvement to the above solution, support wheels are installed at the four corners of the bottom end of the L-shaped side support plate, and internal threaded sleeves are vertically fixed on both sides of the upper surface of the L-shaped side support plate.
[0011] As a further improvement to the above solution, the internal threaded sleeve is connected to a threaded adjusting rod by a threaded connection, and the bottom end of the threaded adjusting rod is connected to a positioning base plate by a bearing.
[0012] As a further improvement to the above solution, the positioning base plate is located below the L-shaped side support plate, and a positioning cone is provided on the positioning base plate, with the bottom end of the positioning cone extending through the positioning base plate to its lower part.
[0013] As a further improvement to the above solution, a support block is connected to the side of the L-shaped side support plate near the movable nut, and a support groove is provided on the main support plate below the reserved through groove.
[0014] As a further improvement to the above solution, the support block is located inside the support groove, the support block and the support groove are slidably engaged, and the top of the two opposing L-shaped side support plates are provided with upper baffles.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This easily disassembled protective device for steel structure engineering uses a self-locking motor to drive a bidirectional threaded rod to rotate, enabling the moving nut to slide smoothly and efficiently in a linear manner. This, in turn, drives the L-shaped side support plate to open and close quickly. During disassembly, the self-locking motor is activated, causing the L-shaped side support plate to move outward automatically and quickly detach from the steel structure. The entire process does not require the use of complex tools such as wrenches and screwdrivers, significantly shortening disassembly time and greatly improving construction efficiency. At the same time, the automated operation mode effectively reduces the physical exertion and operational difficulty of construction personnel. Furthermore, the motor's self-locking function, combined with a precision transmission structure, can effectively resist interference from construction vibrations and external collisions, ensuring that the protective device remains stable throughout the operation and building a solid safety barrier for the construction site.
[0017] 2. This easily disassembled protective device for steel structure engineering uses a threaded connection between an internal threaded sleeve and a threaded adjusting rod. The height of the positioning base plate can be adjusted by rotating the threaded adjusting rod according to different construction ground conditions, so that the positioning cone can be firmly inserted into the ground, enhancing the stability of the protective device. Even on uneven ground, the protective device can be firmly fixed, effectively preventing the protective device from shaking or shifting during use, and providing reliable safety protection for steel structure engineering construction.
[0018] 3. This easily disassembled protective device for steel structure engineering, through the sliding cooperation between the support block and the support groove, not only provides additional support for the L-shaped side support plate, enhances the structural strength of the L-shaped side support plate during use, and prevents it from deforming, but also further ensures the smoothness of the sliding of the L-shaped side support plate. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a three-dimensional structural diagram of the main support plate of this utility model;
[0021] Figure 3 This is a three-dimensional structural diagram of the L-shaped side support plate of this utility model;
[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the positioning base plate of this utility model;
[0023] Figure 5 This is an enlarged structural schematic diagram of a portion of the support groove of this utility model.
[0024] In the diagram: 1. Main support plate; 2. Reserved through slot; 3. Self-locking motor; 4. Two-way threaded rotating rod; 5. Moving nut; 6. L-shaped side support plate; 7. Support wheel; 8. Internal threaded sleeve; 9. Threaded adjusting rod; 10. Positioning base plate; 11. Positioning cone; 12. Support block; 13. Support groove; 14. Upper baffle. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1 - Figure 5This utility model provides a technical solution: a protective device for steel structure engineering that is easy to disassemble, including a main support plate 1, a reserved through groove 2 is provided on the main support plate 1, a self-locking motor 3 is fixedly installed on one side inside the reserved through groove 2, and a bidirectional threaded rotating rod 4 is fixedly connected to the transmission end of the self-locking motor 3.
[0027] The end of the bidirectional threaded rotating rod 4 away from the self-locking motor 3 is connected to the reserved through slot 2 via a bearing. The outer surface of the bidirectional threaded rotating rod 4 is connected to a movable nut 5 via a thread. The movable nut 5 can slide along the guide structure of the reserved through slot 2. An L-shaped side support plate 6 is connected to the side of the movable nut 5.
[0028] Start the self-locking motor 3. The motor outputs power to drive the bidirectional threaded rod 4 to rotate. Based on the principle of thread transmission, the rod with a bidirectional threaded structure on its outer surface cooperates with the movable nut 5, causing the two movable nuts 5 to slide synchronously in opposite directions along the guide structure of the reserved through slot 2. This causes the L-shaped side support plate 6 to retract smoothly until the steel beam is firmly limited between the two sets of L-shaped side support plates 6, quickly completing the initial positioning of the protective device. During disassembly, start the self-locking motor 3 again to control the bidirectional threaded rod 4 to rotate in the opposite direction. The two movable nuts 5 then drive the L-shaped side support plate 6 to move outward, allowing the protective device to quickly separate from the steel beam.
[0029] Support wheels 7 are installed at the four corners of the bottom of the L-shaped side support plate 6. Internal threaded sleeves 8 are vertically fixed on both sides of the upper surface of the L-shaped side support plate 6. The internal threaded sleeves 8 are threadedly connected to the threaded adjusting rods 9. The bottom end of the threaded adjusting rods 9 is connected to the positioning base plate 10 through the bearing. The positioning base plate 10 is located below the L-shaped side support plate 6. A positioning cone 11 is provided on the positioning base plate 10. The bottom end of the positioning cone 11 extends through the positioning base plate 10 to its bottom. A support block 12 is connected to the side of the L-shaped side support plate 6 near the moving nut 5. A support groove 13 is opened below the reserved through groove 2 on the main support plate 1. The support block 12 is located inside the support groove 13. The support block 12 and the support groove 13 are slidably engaged. An upper baffle 14 is provided at the top of each of the two opposing L-shaped side support plates 6.
[0030] During the activation phase of the protective device, workers can easily and conveniently move the device to the target work area using the support wheels 7 at the bottom of the L-shaped side support plate 6, and precisely adjust its position so that the two sets of L-shaped side support plates 6 are symmetrically distributed on both sides of the stacked steel beams. After the L-shaped side support plates 6 have completed their positioning of the steel beams, the operator rotates the threaded adjusting rod 9, utilizing its threaded transmission relationship with the internal threaded sleeve 8, to make the threaded adjusting rod 9 move vertically downwards, causing the positioning base plate 10 and the bottom positioning cone 11 to descend synchronously. As the positioning cone 11 gradually inserts into the ground, the protective device forms a stable anchor with the ground. This design effectively enhances the device's overall resistance to vibration and external impact, ensuring reliable protection even in complex construction environments. During disassembly, the support wheels 7 play a crucial role, allowing construction personnel to easily slide the L-shaped side support plate 6 on the ground and transfer the device to a designated storage location. As the L-shaped side support plate 6 moves, the side support blocks 12 slide smoothly along the support grooves 13, providing structural support and ensuring stability and strength during opening and closing. The top baffle 14 assists in limiting the steel beam during protection, achieving three-dimensional and all-round safety protection for the steel beam.
[0031] Working Principle: During the activation phase of the protective device, the operator can flexibly and conveniently move the device to the target work area using the support wheels 7 at the bottom of the L-shaped side support plate 6, and precisely adjust its position so that the two sets of L-shaped side support plates 6 are symmetrically distributed on both sides of the stacked steel beam. Then, the self-locking motor 3 is started, and the motor outputs power to drive the bidirectional threaded rotating rod 4 to rotate. Based on the thread transmission principle, the rotating rod with a bidirectional thread structure on its outer surface cooperates with the moving nut 5, causing the two moving nuts 5 to slide synchronously in opposite directions along the guide structure of the reserved through slot 2, thereby driving the L-shaped side support plate 6 to retract smoothly until the steel beam is firmly limited between the two sets of L-shaped side support plates 6, quickly completing the initial positioning of the protective device. After the L-shaped side support plate 6 has completed the limitation of the steel beam, the operator rotates the threaded adjusting rod 9, using its thread transmission relationship with the internal threaded sleeve 8, to make the threaded adjusting rod 9 move vertically downward, driving the positioning base plate 10. The positioning cone 11 at the bottom descends synchronously. As the positioning cone 11 gradually inserts into the ground, the protective device forms a stable anchor with the ground, effectively enhancing the overall vibration resistance and external impact resistance of the device, ensuring a reliable protective state in complex construction environments. During disassembly, the self-locking motor 3 is restarted to control the bidirectional threaded rod 4 to rotate in the opposite direction. The two moving nuts 5 then drive the L-shaped side support plate 6 to move outward, allowing the protective device to quickly separate from the steel beam. At this time, the support wheel 7 plays a role, and the construction personnel can easily push the L-shaped side support plate 6 to slide on the ground and transfer the device to the designated storage location. During the movement of the L-shaped side support plate 6, the side support block 12 slides smoothly along the support groove 13, providing structural support and ensuring stability and strength during the opening and closing process. The top baffle 14 assists in limiting the steel beam during protection, achieving three-dimensional and all-round safety protection for the steel beam.
[0032] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.
Claims
1. A protective device for steel structure engineering, which is easy to disassemble, comprising a main support plate (1), characterized in that: The main support plate (1) is provided with a reserved through slot (2), and a self-locking motor (3) is fixedly installed on one side inside the reserved through slot (2). The transmission end of the self-locking motor (3) is fixedly connected to a bidirectional threaded rotating rod (4). The end of the bidirectional threaded rotating rod (4) away from the self-locking motor (3) is connected to the reserved through slot (2) through a bearing. The outer surface of the bidirectional threaded rotating rod (4) is connected to a movable nut (5) through a thread. The movable nut (5) can slide along the guide structure of the reserved through slot (2). The side of the movable nut (5) is connected to an L-shaped side support plate (6).
2. The protective device for steel structure engineering that is easy to disassemble according to claim 1, characterized in that: The L-shaped side support plate (6) is equipped with support wheels (7) at the four corners of its bottom end, and internal threaded sleeves (8) are vertically fixed on both sides of the upper surface of the L-shaped side support plate (6).
3. A protective device for steel structure engineering that is easy to disassemble according to claim 2, characterized in that: The internal threaded sleeve (8) is connected to a threaded adjusting rod (9) by a threaded screw, and the bottom end of the threaded adjusting rod (9) is connected to a positioning base plate (10) by a bearing.
4. A protective device for steel structure engineering that is easy to disassemble according to claim 3, characterized in that: The positioning base plate (10) is located below the L-shaped side support plate (6). A positioning cone (11) is provided on the positioning base plate (10), and the bottom end of the positioning cone (11) extends through the positioning base plate (10) to its lower part.
5. A protective device for steel structure engineering that is easy to disassemble according to claim 1, characterized in that: The L-shaped side support plate (6) is connected to a support block (12) on the side near the movable nut (5), and the main support plate (1) has a support groove (13) below the reserved through groove (2).
6. A protective device for steel structure engineering that is easy to disassemble according to claim 5, characterized in that: The support block (12) is located inside the support groove (13). The support block (12) and the support groove (13) are slidably engaged. The top of the two opposing L-shaped side support plates (6) are provided with upper baffles (14).