Bridge engineering protection device convenient to disassemble

By combining the design of telescopic ladders, telescopic mechanisms, lifting platforms, and dismantling mechanisms, the problems of complex dismantling and unstable lifting of traditional bridge engineering protective devices have been solved, achieving rapid dismantling and stable lifting, thus improving construction efficiency and safety.

CN223824048UActive Publication Date: 2026-01-23HEBEI PARKER LANDSCAPE ENG CO LTD
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Patent Information

Application Number
CN202520386916.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-01-23
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

The installation and dismantling of protective devices used in traditional bridge engineering are complex and time-consuming, and the lifting mechanism is unstable, posing safety hazards, especially when frequently adjusted or carrying heavy loads.

Method used

It adopts a combined design of telescopic ladder, telescopic mechanism, lifting platform, disassembly box and disassembly mechanism. It uses worm gear and screw structure to achieve stable lifting of the lifting platform, and the disassembly mechanism can quickly install and disassemble the guardrail.

Benefits of technology

It enables rapid disassembly and installation of guardrails, reduces preparation time, improves construction efficiency, ensures the safety and stability of the lifting process, and adapts to the needs of bridge operations at different heights.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bridge engineering protection device convenient to disassemble, which comprises a base, one side of the base is fixedly connected with a telescopic scaling ladder, the top of the base is fixedly connected with a telescopic mechanism, the top of the telescopic mechanism is fixedly connected with a lifting platform, the top of the lifting platform is fixedly connected with a disassembling box, and one side of the lifting platform is fixedly connected with a disassembling mechanism. The support is fixedly connected to the top of the base, the outer wall of the support is sleeved with the first sleeve, the second sleeve is fixedly connected to the top of the base, the connecting plate is connected to one side of the first sleeve, the second sleeve is fixedly connected to the top of the base, and the bearing seat is fixedly connected to one side of the second sleeve. The motor is fixedly connected to one side of the bearing seat, and the output end of the motor penetrates through one side of the bearing seat. The guardrail can be rapidly disassembled and assembled, it is guaranteed that the guardrail is not prone to shaking in the lifting process, and safety is improved.
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Description

Technical Field

[0001] This utility model relates to the field of bridge engineering protection technology, and in particular to a bridge engineering protection device that is easy to disassemble. Background Technology

[0002] Bridge engineering protective devices are generally used to protect construction workers and passing vehicles, and provide a stable platform so that workers can work safely at heights, reducing the risk of falls. By reducing the frequency of workers moving up and down, construction progress can be accelerated and work efficiency improved.

[0003] However, the installation and dismantling of guardrails for traditional bridge engineering protective devices usually involve bolt connections, requiring workers to tighten or loosen bolts one by one using tools. This process is complex and time-consuming, especially when frequent adjustments to the guardrail position are needed or when dismantling guardrails for equipment transport or site cleanup. This significantly reduces construction efficiency. Traditional lifting mechanisms may use simple hydraulic or rope traction methods, which are prone to swaying and instability during lifting. This poses a high safety risk, especially when carrying heavy construction equipment or when multiple people are working on the lifting platform simultaneously. Furthermore, if the power source fails, the lifting platform may descend on its own due to its own weight, posing a serious safety hazard. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bridge engineering protective device that is easy to disassemble.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bridge engineering protective device that is easy to disassemble includes a base, a telescopic ladder fixedly connected to one side of the base, a telescopic mechanism fixedly connected to the top of the base, a lifting platform fixedly connected to the top of the telescopic mechanism, a disassembly box fixedly connected to the top of the lifting platform, a disassembly mechanism fixedly connected to one side of the lifting platform, and a guardrail inserted into the top of the disassembly box.

[0007] As a further embodiment of this utility model: the telescopic mechanism includes a bracket, a first sleeve, a connecting plate, a second sleeve, a bearing seat, a motor, a worm, a screw, and a worm wheel, and the bracket is fixedly connected to the top of the base.

[0008] As a further embodiment of this utility model: the first sleeve is connected to the outer wall of the bracket, the second sleeve is fixedly connected to the top of the base, the connecting plate is connected to one side of the first sleeve, and the second sleeve is fixedly connected to the top of the base.

[0009] As a further embodiment of this utility model: the bearing seat is fixedly connected to one side of the sleeve two, the motor is fixedly connected to one side of the bearing seat, and the motor output end passes through one side of the bearing seat.

[0010] As a further embodiment of this utility model: the worm gear is rotatably connected to the top of the sleeve two, the screw is threadedly connected to the inner wall of the worm gear, and the connecting plate is rotatably connected to the top of the screw.

[0011] As a further embodiment of this utility model: the disassembly mechanism includes a pull rod, a sleeve, a ring, a spring, a fixing pin, and a disassembly seat, and the disassembly seat is fixedly connected to one side of the disassembly box.

[0012] As a further embodiment of this utility model: the sleeve three is fixedly connected to the inner wall of the disassembly seat, the ring is fixedly connected to the inner wall of the sleeve three, the spring is fixedly connected to one side of the ring, the fixing pin is fixedly connected to one side of the spring, and the pull rod is fixedly connected to one side of the fixing pin.

[0013] Compared with the prior art, this utility model provides a bridge engineering protective device that is easy to disassemble, and has the following beneficial effects:

[0014] This is a bridge engineering protective device that is easy to disassemble. When the device arrives at the construction site, workers pick up the guardrail, align it with the insertion slot on the top of the disassembly box, and insert the guardrail vertically. Then, the guardrail is fixed by the disassembly mechanism. Subsequently, the workers enter the lifting platform through the telescopic ladder and activate the telescopic mechanism. The telescopic ladder extends or retracts with the lifting platform to transport the workers to the work area. At the same time, the lifting platform maintains a certain safe distance from the ground throughout the process to reduce the impact on pedestrian passage. Thus, it avoids obstructing normal pedestrian passage due to construction land occupation. The disassembly mechanism can quickly and significantly save the preliminary preparation time, and the telescopic mechanism can quickly transport workers to the work area.

[0015] This easily disassembled protective device for bridge engineering allows for the transport of workers to the work area. When the motor is started, its output drives a worm gear to rotate around a bearing seat, transmitting power to a worm wheel. Simultaneously, the rotation of the worm wheel causes a screw to move up and down along the inner wall of sleeve two via a threaded connection. The screw moves a connecting plate, which is connected to one side of sleeve one. Therefore, the lifting of the screw adjusts the movement of the connecting plate and sleeve one along the outer wall of the support, thus achieving the lifting of the entire lifting platform. The self-locking core of the worm wheel and worm gear ensures that the platform will not descend due to its own weight when it stops operating or if the motor suddenly stops unexpectedly, ensuring the safety and stability of the work area. Furthermore, the support, sleeve one, and other components provide stable support and can withstand large loads, enabling the stable transport of workers to suitable work areas when working on bridges at different heights.

[0016] This is a bridge engineering protective device that is easy to disassemble. When the guardrail needs to be installed, the worker holds the pull rod and pulls it outward. At this time, the pull rod drives the fixing pin to overcome the elastic force of the spring and retract into the disassembly seat. Under the restriction of the ring, it is prevented from being pulled too much and moving out of the inner wall of the disassembly seat. After the guardrail is inserted into the inner wall of the disassembly box, the pull rod is released, and the spring drives the fixing pin to return to its original position. Thus, the guardrail can be installed quickly, reducing the preparation time before work. Moreover, the quick disassembly of the guardrail allows for quick recovery of the device, which is convenient for transportation.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a front view of a bridge engineering protective device that is easy to disassemble, as proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the telescopic mechanism in a bridge engineering protective device that is easy to disassemble, as proposed in this utility model.

[0020] Figure 3 This is an enlarged detail view of the telescopic mechanism in a bridge engineering protective device that is easy to disassemble, as proposed in this utility model.

[0021] Figure 4 An exploded view of the disassembly mechanism in a bridge engineering protective device that is easy to disassemble, as proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the disassembly mechanism in a bridge engineering protective device that is easy to disassemble, as proposed in this utility model.

[0023] In the diagram: 1. Base; 2. Telescopic ladder; 3. Telescopic mechanism; 4. Lifting platform; 5. Disassembly box; 6. Disassembly mechanism; 7. Guardrail; 301. Bracket; 302. Sleeve 1; 303. Connecting plate; 304. Sleeve 2; 305. Bearing seat; 306. Motor; 307. Worm gear; 308. Screw; 309. Worm wheel; 601. Pull rod; 602. Sleeve 3; 603. Ring; 604. Spring; 605. Fixing pin; 606. Disassembly seat. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] A bridge engineering protective device that is easy to disassemble, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes a base 1, a telescopic ladder 2 fixedly connected to one side of the base 1, a telescopic mechanism 3 fixedly connected to the top of the base 1, a lifting platform 4 fixedly connected to the top of the telescopic mechanism 3, a disassembly box 5 fixedly connected to the top of the lifting platform 4, a disassembly mechanism 6 fixedly connected to one side of the lifting platform 4, a guardrail 7 inserted into the top of the disassembly box 5, and one end of the lifting platform 4 fixedly connected to the lifting platform 4. The telescopic ladder 2 is model DYSJ-50.

[0028] Once the equipment arrives at the construction site, workers pick up the guardrail 7, align it with the insertion slot on the top of the disassembly box 5, and insert the guardrail 7 vertically. Then, the disassembly mechanism 6 secures the guardrail 7. Subsequently, workers enter the lifting platform 4 via the telescopic ladder 2 and activate the telescopic mechanism 3. The telescopic ladder 2 extends or retracts along with the lifting platform 4, transporting workers to the work area. During this process, the lifting platform 4 maintains a safe distance from the ground to minimize obstruction of pedestrian traffic. This avoids obstructing normal pedestrian passage due to construction site occupation. The disassembly mechanism 6 significantly saves preparation time, and the telescopic mechanism 3 quickly transports workers to the work area.

[0029] In order to transport workers to the work area, such as Figure 2 and Figure 3As shown, the telescopic mechanism 3 includes a bracket 301, a first sleeve 302, a connecting plate 303, a second sleeve 304, a bearing seat 305, a motor 306, a worm gear 307, a screw 308, and a worm wheel 309. The bracket 301 is fixedly connected to the top of the base 1, the first sleeve 302 is sleeved on the outer wall of the bracket 301, the second sleeve 304 is fixedly connected to the top of the base 1, the connecting plate 303 is connected to one side of the first sleeve 302, the second sleeve 304 is fixedly connected to the top of the base 1, and the bearing seat 305 is fixedly connected to the first sleeve 304. On one side, motor 306 is fixedly connected to one side of bearing housing 305, and the output end of motor 306 passes through one side of bearing housing 305. Worm 307 is fixedly connected to the output end of motor 306, and one end of worm 307 is rotatably connected to bearing housing 305. Worm wheel 309 is rotatably connected to the top of sleeve 2 304. Screw 308 is threadedly connected to the inner wall of worm wheel 309, and worm 308 extends into the inside of sleeve 2 304. Connecting plate 303 is rotatably connected to the top of screw 308, and worm 307 meshes with worm wheel 309.

[0030] When it is necessary to transport workers to the work area, the motor 306 is started. The output end of the motor 306 drives the worm gear 307 to rotate around the bearing seat 305 and transmits power to the worm wheel 309. At the same time, the rotation of the worm wheel 309 causes the screw 308 to move up and down on the inner wall of the sleeve 304 through the thread.

[0031] The screw 308 drives the connecting plate 303 to move, and the connecting plate 303 is connected to one side of the sleeve 302. Therefore, the lifting of the screw 308 adjusts the connecting plate 303 and the sleeve 302 connected to it to move up and down along the outer wall of the bracket 301, thereby realizing the lifting of the entire lifting platform 4. Thus, through the self-locking property of the worm gear 309 and the worm 307, it is ensured that when the machine stops or the motor 306 suddenly stops unexpectedly, it will not descend on its own due to its own weight or other factors, ensuring the safety and stability of the working area. Furthermore, the bracket 301, sleeve 302 and other components can provide stable support and withstand large loads. At the same time, when facing bridge operations of different heights, it can stably transport workers to the appropriate working area.

[0032] To quickly dismantle guardrail 7, etc. Figure 4 and Figure 5 As shown, the disassembly mechanism 6 includes a pull rod 601, a sleeve 602, a ring 603, a spring 604, a fixing pin 605, and a disassembly seat 606. The disassembly seat 606 is fixedly connected to one side of the disassembly box 5, the sleeve 602 is fixedly connected to the inner wall of the disassembly seat 606, the ring 603 is fixedly connected to the inner wall of the sleeve 602, the spring 604 is fixedly connected to one side of the ring 603, the fixing pin 605 is fixedly connected to one side of the spring 604, and the pull rod 601 is fixedly connected to one side of the fixing pin 605.

[0033] When the guardrail 7 needs to be installed, the worker holds the pull rod 601 and pulls it outward. At this time, the pull rod 601 drives the fixing pin 605 to overcome the elastic force of the spring 604 and retract into the disassembly seat 606. Under the restriction of the ring 603, it prevents the disassembly seat 606 from being pulled too much and moving out of the inner wall of the disassembly seat 606. After the guardrail 7 is inserted into the inner wall of the disassembly box 5, the pull rod 601 is released, and the spring 604 drives the fixing pin 605 to return to its original position. Thus, the guardrail 7 can be installed quickly, reducing the preparation time before work. Moreover, the quick disassembly of the guardrail 7 allows for quick recovery of the device, which is convenient for transportation.

[0034] Working principle: When it is necessary to transport workers to the work area, the motor 306 is started. The output end of the motor 306 drives the worm 307 to rotate around the bearing seat 305 and transmits power to the worm wheel 309. At the same time, the rotation of the worm wheel 309 causes the screw 308 to move up and down on the inner wall of the sleeve 304 through the thread.

[0035] The screw 308 drives the connecting plate 303 to move, and the connecting plate 303 is connected to one side of the sleeve 302. Therefore, the lifting and lowering of the screw 308 adjusts the connecting plate 303 and the sleeve 302 connected to it to move up and down along the outer wall of the bracket 301, thereby realizing the lifting and lowering of the entire lifting platform 4.

[0036] When the guardrail 7 needs to be installed, the worker holds the pull rod 601 and pulls it outward. At this time, the pull rod 601 drives the fixing pin 605 to overcome the elastic force of the spring 604 and retract into the disassembly seat 606. Under the restriction of the ring 603, it prevents the disassembly seat 606 from being pulled too much and moving out of the inner wall of the disassembly seat 606. After the guardrail 7 is inserted into the inner wall of the disassembly box 5, the pull rod 601 is released, and the spring 604 drives the fixing pin 605 to return to its original position.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bridge engineering protective device that is easy to disassemble, comprising a base (1), characterized in that, A telescopic ladder (2) is fixedly connected to one side of the base (1), a telescopic mechanism (3) is fixedly connected to the top of the base (1), a lifting platform (4) is fixedly connected to the top of the telescopic mechanism (3), a disassembly box (5) is fixedly connected to the top of the lifting platform (4), a disassembly mechanism (6) is fixedly connected to one side of the lifting platform (4), and a guardrail (7) is inserted into the top of the disassembly box (5).

2. The bridge engineering protective device that is easy to disassemble according to claim 1, characterized in that, The telescopic mechanism (3) includes a bracket (301), a first sleeve (302), a connecting plate (303), a second sleeve (304), a bearing seat (305), a motor (306), a worm (307), a screw (308), and a worm wheel (309), and the bracket (301) is fixedly connected to the top of the base (1).

3. A bridge engineering protective device that is easy to disassemble according to claim 2, characterized in that, The first sleeve (302) is sleeved on the outer wall of the bracket (301), the second sleeve (304) is fixedly connected to the top of the base (1), and the connecting plate (303) is connected to one side of the first sleeve (302).

4. A bridge engineering protective device that is easy to disassemble according to claim 2, characterized in that, The bearing housing (305) is fixedly connected to one side of the sleeve (304), the motor (306) is fixedly connected to one side of the bearing housing (305), and the output end of the motor (306) passes through one side of the bearing housing (305).

5. A bridge engineering protective device that is easy to disassemble according to claim 2, characterized in that, The worm gear (309) is rotatably connected to the top of the sleeve (304), the screw (308) is threadedly connected to the inner wall of the worm gear (309), and the connecting plate (303) is rotatably connected to the top of the screw (308).

6. A bridge engineering protective device that is easy to disassemble according to claim 1, characterized in that, The disassembly mechanism (6) includes a pull rod (601), a sleeve (602), a ring (603), a spring (604), a fixing pin (605), and a disassembly seat (606), and the disassembly seat (606) is fixedly connected to one side of the disassembly box (5).

7. A bridge engineering protective device that is easy to disassemble according to claim 6, characterized in that, The sleeve three (602) is fixedly connected to the inner wall of the disassembly seat (606), the ring (603) is fixedly connected to the inner wall of the sleeve three (602), the spring (604) is fixedly connected to one side of the ring (603), the fixing pin (605) is fixedly connected to one side of the spring (604), and the pull rod (601) is fixedly connected to one side of the fixing pin (605).