A multifunctional guarantee device for electric power construction

Abstract

This utility model discloses a multi-functional safety device for power construction, relating to the field of power construction technology. The device includes a protective frame with a support mechanism below it: a limiting component comprising a support plate positioned below the protective frame, a support rod movably mounted above the support plate, an internally threaded tube movably mounted inside the support rod, a threaded column movably mounted inside the internally threaded tube, guide columns fixedly mounted on both sides of the threaded column, and a motor fixedly mounted above the support rod. When a single tooth of the rack passes the limiting tooth, a spring immediately releases its elastic potential energy, pulling the limiting tooth back to its original position and locking it into the next slot of the rack, forming a one-way locking mechanism. This allows the rack to move inward as the lifting frame unfolds, preventing it from sliding in the opposite direction. In the event of a sudden malfunction, it prevents the lifting frame from rapidly retracting, providing double safety protection for workers operating at heights.

Description

Technical Field

[0001] This utility model relates to the field of power construction technology, specifically a multi-functional support device for power construction. Background Technology

[0002] Electrical engineering encompasses engineering projects related to the production, transmission, and distribution of electrical energy. In a broader sense, it also includes projects that utilize electricity as a power source and energy source in various fields. It can also be understood as power transmission and transformation expansion projects. The transmission, transformation, distribution, and consumption of electrical energy together constitute the overall function of a power system. Through transmission, power plants and load centers located thousands of kilometers apart are connected, enabling the development and utilization of electrical energy to transcend geographical limitations. Compared to the transmission of other energy sources (such as coal and oil), power transmission has lower losses, higher efficiency, greater flexibility and convenience, easier control, and less environmental pollution.

[0003] A relevant reference is Chinese utility model patent CN217297203U, which discloses a multifunctional construction device for power engineering. The device includes a workbench with a lifting mechanism at its bottom. A door slot runs through the workbench, and an opening / closing door is located within the slot. The door is hinged to the workbench, and a rotating pin is rotatably connected to the door. An L-shaped limiting frame, which works in conjunction with the rotating pin, is attached to the workbench. An auxiliary module is located on the top of the workbench. After entering the workbench, workers can place their tools inside. The lifting mechanism at the bottom of the workbench quickly elevates the workers to the required height, facilitating maintenance and repair work on electrical wires and circuit components. This not only improves construction efficiency but also ensures worker safety during construction.

[0004] During use, the center of gravity of the aforementioned construction device rises as the upper platform ascends. Movement of personnel on the upper platform can cause the device to sway, shifting the center of gravity and potentially leading to overturning. Furthermore, the device's position is limited only by the self-locking casters at the bottom. If the bottom surface is uneven, the entire device will tilt, compromising safety. Additionally, the scissor-lift structure is driven solely by hydraulic cylinders; if the cylinders fail to provide sufficient support, the upper platform will rapidly fall, posing a safety hazard. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a multi-functional safety device for power construction, which solves the problems of poor stability and user falls caused by the shutdown of scissor-type drive equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multi-functional protective device for power construction includes a protective frame, with a support mechanism located below the protective frame. The limiting component includes a support plate disposed below the protective frame, a support rod movably mounted above the support plate, an internally threaded tube movably mounted inside the support rod, a threaded post movably mounted inside the internally threaded tube, guide posts fixedly mounted on both sides of the threaded post, and a motor fixedly mounted above the support rod. The lifting component is located below the protective frame and between the limiting component, and is used to lift the protective frame.

[0007] Preferably, the lifting assembly includes a lifting frame fixedly installed below the protective frame. Limiting blocks are movably installed on both sides of the lifting frame, and an electric actuator is fixedly installed between the limiting blocks. A guide block is movably installed inside one of the limiting blocks of the lifting frame, and a transmission rod is inserted inside the guide block. An adapter frame is movably installed at the end of the transmission rod. A telescopic rod is movably installed at one end of the adapter frame. A limiting tooth is movably installed at one end of the telescopic rod, and a sliding groove is movably installed at the other end of the telescopic rod. A rack is movably installed inside the sliding groove.

[0008] Preferably, casters are fixedly installed at the four corners of the bottom surface of the support plate, the support rods are symmetrically installed at the four corners of the support plate, the support rods and the support plate are rotatably connected, the internally threaded tube and the support rods are rotatably connected, and the top end of the internally threaded tube is a closed structure.

[0009] Preferably, the threaded column is movably connected to the internally threaded tube via a threaded structure, the guide column is slidably connected to the support rod, and the motor shaft is fixedly connected to the top end of the internally threaded tube.

[0010] Preferably, the lifting frame is a scissor-type structure, the two ends of the electric push rod are rotatably connected to the horizontal shafts on the left and right sides of the lifting frame through limiting blocks, the guide block is rotatably connected to the limiting block, the transmission rod is slidably connected to the guide block, and the transmission rod is provided with protruding structures on both sides.

[0011] Preferably, the adapter frame and the transmission rod are rotatably connected, the top end of the telescopic rod is rotatably connected to the adapter frame, the bottom end is rotatably connected to the slide groove, the top end of the limiting tooth is rotatably connected to the top end of the telescopic rod, the lower bend is rotatably connected to the slide groove, and the rack and the slide groove are slidably connected. Beneficial effects

[0012] This utility model provides a multi-functional safety device for power construction. Compared with the prior art, it has the following advantages: (1) The multi-functional support device for power construction, through the setting of the threaded pipe, after the device is moved to the construction point by the universal wheel, first rotates the support rods at the four corners of the support plate to the vertical state so that they extend out of the edge of the support plate. Then the motor is started to drive the internal threaded pipe to rotate. Under the restriction of the guide column, the threaded column extends vertically downward along the internal threaded pipe until the bottom end is in rigid contact with the ground. The motor continues to run slightly so that the threaded column applies stable pressure to the ground. Through the independent adjustment of the four corner threaded columns, the overall horizontal support of the device is finally achieved. The support base of the device is increased by the threaded column to prevent the center of gravity from exceeding the support base when the device shakes, which would cause the device to tip over. And since the device is only supported by the threaded column at this time, it can prevent the device from moving after being lifted.

[0013] (2) This multi-functional safety device for power construction works by gradually reducing the width on both sides of the lifting frame as it unfolds upward under the drive of the electric push rod, which pushes the rack to slide inward along the slide groove. When the toothed structure of the rack contacts the limiting tooth, it forces the limiting tooth to rotate around its hinge point with the slide groove, and simultaneously stretches the spring on the outside of the telescopic rod. Once a single tooth of the rack passes the limiting tooth, the spring immediately releases its elastic potential energy, pulls the limiting tooth back to its original position, and locks it into the next tooth groove of the rack, forming a one-way lock. This only allows the rack to move inward as the lifting frame unfolds, but it cannot slide in the opposite direction. In the event of a sudden failure, it prevents the lifting frame from retracting rapidly, providing double safety protection for workers at height. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the support rod installation structure of this utility model; Figure 3 This is a schematic diagram of the threaded column mounting structure of this utility model; Figure 4 This is a schematic diagram of the electric actuator structure of this utility model; Figure 5 This is a schematic diagram of the spring structure of this utility model; Figure 6 This is a schematic diagram of the guide block structure of this utility model; In the diagram: 1. Protective frame; 2. Support mechanism; 21. Limiting component; 211. Support plate; 212. Support rod; 213. Internally threaded pipe; 214. Threaded column; 215. Guide column; 216. Motor; 22. Lifting component; 221. Lifting frame; 222. Limiting block; 223. Electric actuator; 224. Guide block; 225. Transmission rod; 226. Adapter frame; 227. Telescopic rod; 228. Spring; 229. Limiting tooth; 2210. Slide groove; 2211. Rack. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-6 This utility model provides a technical solution: a multi-functional safety device for power construction, including a protective frame 1, with a support mechanism 2 disposed below the protective frame 1. The limiting component 21 includes a support plate 211 disposed below the protective frame 1, a support rod 212 movably mounted on the top of the support plate 211, an internally threaded tube 213 movably mounted inside the support rod 212, a threaded post 214 movably mounted inside the internally threaded tube 213, guide posts 215 fixedly mounted on both sides of the threaded post 214, a motor 216 fixedly mounted on the top of the support rod 212, casters fixedly mounted at the four corners of the bottom surface of the support plate 211, the support rod 212 symmetrically mounted at the four corners of the support plate 211, the support rod 212 and the support plate 211 forming a rotatable connection, the internally threaded tube 213 and the support rod 212 forming a rotatable connection, the top end of the internally threaded tube 213 having a closed structure, the threaded post 214 forming a movable connection with the internally threaded tube 213 through a threaded structure, the guide post 215 forming a sliding connection with the support rod 212, and the rotating shaft of the motor 216 fixedly connected to the top end of the internally threaded tube 213.

[0017] Specifically, the protective frame 1 provides some protection for the user through its outer frame. The user is connected to the outer frame of the protective frame 1 via a traction rope, safety buckle, or other devices to prevent the user from falling from above the protective frame 1. The casters at the bottom of the support plate 211 facilitate user movement of the device. Simultaneously, the support plate 211 restricts the position of the support rod 212. An annular protrusion structure is provided at the hinge point between the support rod 212 and the support plate 211 to limit the rotation angle of the support rod 212, restricting its rotation range to ninety degrees. During use, the support rod 212 is rotated to be perpendicular to the long side of the support plate 211, causing the end of the support rod 212 to... The motor 216 is located on the outside of the support plate 211. After starting the motor 216, it can drive the internal threaded tube 213 to rotate. Since the internal threaded tube 213 and the threaded column 214 are connected by a threaded structure, and the guide columns 215 fixedly installed on both sides of the threaded column 214 will limit the rotation angle of the threaded column 214, the threaded column 214 will move up and down according to the rotation direction of the internal threaded tube 213 when the internal threaded tube 213 rotates, so as to adjust the height of the bottom end of the threaded column 214, so that the bottom end of the threaded column 214 contacts the ground and maintains a certain relative pressure, so as to ensure that the device is in a fixed state during the operation of the lifting component 22.

[0018] A lifting assembly 22, located below the protective frame 1 and between the limiting assembly 21, is used to lift the protective frame 1. The lifting assembly 22 includes a lifting frame 221 fixedly installed below the protective frame 1. Limiting blocks 222 are movably installed on both sides of the lifting frame 221. An electric actuator 223 is fixedly installed between the limiting blocks 222. A guide block 224 is movably installed inside one limiting block 222 of the lifting frame 221. A transmission rod 225 is inserted inside the guide block 224. An adapter frame 226 is movably installed at the end of the transmission rod 225. A telescopic rod 227 is movably installed at one end of the adapter frame 226. A limiting tooth 229 is movably installed at one end of the telescopic rod 227. A sliding groove 2210 is movably installed at the other end of the telescopic rod 227. Equipped with a rack 2211, the lifting frame 221 has a scissor-type structure. The two ends of the electric push rod 223 are rotatably connected to the horizontal shafts on the left and right sides of the lifting frame 221 through the limiting blocks 222. The guide block 224 is rotatably connected to the limiting blocks 222. The transmission rod 225 is slidably connected to the guide blocks 224. The transmission rod 225 has protruding structures on both sides. The adapter frame 226 is rotatably connected to the transmission rod 225. The top end of the telescopic rod 227 is rotatably connected to the adapter frame 226, and the bottom end is rotatably connected to the slide groove 2210. The top end of the limiting tooth 229 is rotatably connected to the top end of the telescopic rod 227, and the lower bend is rotatably connected to the slide groove 2210. The rack 2211 is slidably connected to the slide groove 2210.

[0019] Specifically, the electric actuator 223 is at its extension limit by default. When the electric actuator 223 retracts, it can cause the lifting frame 221 to extend upwards. The lifting frame 221 can drive the protective frame 1 to move upwards. In the default state, the protruding structure of the transmission rod 225 is engaged with the guide block 224. The two ends of the spring 228 are fixedly connected to the two ends of the telescopic rod 227. When the lifting frame 221 extends upwards, the width on both sides decreases, which will push the rack 2211 to move into the slide groove 2210. When the rack 2211 moves, the toothed structure will drive the limiting tooth 229 to rotate with its hinge point with the slide groove 2210 as the reference, and stretch the spring 228 on the outside of the telescopic rod 227. The spring 228 will be stretched by a single tooth of the rack 2211. The structure drives the limiting tooth 229 to reset after passing under the limiting tooth 229. The rack 2211 and the limiting tooth 229 restrict the lifting frame 221 to remain in a specific state, preventing the lifting frame 221 from retracting due to the lack of external force when the electric push rod 223 fails, which would cause the protective frame 1 to fall rapidly. When the lifting frame 221 is retracted, the transmission rod 225 is pushed inward. When the protruding structure of the transmission rod 225 is completely located on one side of the guide block 224, the transmission rod 225 is rotated 90 degrees. At this time, the limiting tooth 229 will remain separated from the rack 2211 under the restriction of the upper adapter 226. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0020] During operation, when the device is moved, the universal wheels at the bottom of the support plate 211 are used to push the device to the power construction area. Upon arrival, the support rod 212 is rotated to make it perpendicular to the long side of the support plate 211, and the motor 216 is started. The motor 216 drives the internal threaded tube 213 to rotate. Due to the restriction of the guide column 215, the threaded column 214 rises and falls along the internal threaded tube 213 until the bottom end contacts the ground and maintains appropriate pressure, thus completing the device fixation. Construction personnel enter the protective frame 1 and are connected to the outer frame of the protective frame 1 through safety ropes, etc. When lifting operations are required, the electric push rod 223 retracts, driving the scissor lift frame 221 to unfold upward, driving the protective frame 1 to rise. During the lifting process, the lift frame 221... 21 unfolds to reduce the width on both sides, pushing the rack 2211 to move into the slide groove 2210. The teeth of the rack 2211 drive the limiting tooth 229 to rotate and stretch the spring 228. The spring 228 resets, allowing the limiting tooth 229 to engage in the next tooth groove of the rack 2211, restricting the lifting frame 221 from falling back. When the operation is finished and the protective frame 1 needs to be lowered, push the transmission rod 225 inward until its protruding structure is completely located on one side of the guide block 224. Rotate the transmission rod 225 degrees to separate the limiting tooth 229 from the rack 2211. The electric push rod 223 extends, driving the lifting frame 221 to retract. The protective frame 1 lowers and resets. Afterward, it can be moved to the next work point or storage area via the universal wheel moving device.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional security device for electric power construction, comprising a protective frame (1), characterized in that: A support mechanism (2) is provided below the protective frame (1): The limiting component (21) includes a support plate (211) disposed below the protective frame (1), a support rod (212) is movably installed above the support plate (211), an internal threaded tube (213) is movably installed inside the support rod (212), a threaded column (214) is movably installed inside the internal threaded tube (213), guide columns (215) are fixedly installed on both sides of the threaded column (214), and a motor (216) is fixedly installed above the support rod (212). The lifting component (22) is located below the protective frame (1) and between the limiting component (21) for lifting the protective frame (1).

2. The multifunctional security device for electric power construction according to claim 1, characterized in that: The lifting assembly (22) includes a lifting frame (221) fixedly installed below the protective frame (1). Limiting blocks (222) are movably installed on both sides of the lifting frame (221). An electric push rod (223) is fixedly installed between the limiting blocks (222). A guide block (224) is movably installed inside the limiting block (222) on one side of the lifting frame (221). A transmission rod (225) is inserted inside the guide block (224). A transition frame (226) is movably installed at the end of the transmission rod (225). A telescopic rod (227) is movably installed at one end of the transition frame (226). A limiting tooth (228) is movably installed at one end of the telescopic rod (227). A slide groove (229) is movably installed at the other end of the telescopic rod (227). A rack (2210) is movably installed inside the slide groove (229).

3. The multifunctional safety device for electric power construction of claim 1, wherein: The support plate (211) has casters fixedly installed at the four corners of its bottom surface. The support rods (212) are symmetrically installed at the four corners of the support plate (211). The support rods (212) and the support plate (211) are rotatably connected. The internal threaded tube (213) and the support rods (212) are rotatably connected. The top of the internal threaded tube (213) is a closed structure.

4. The multifunctional safety device for electric power construction of claim 1, wherein: The threaded column (214) is movably connected to the internal threaded tube (213) through a threaded structure, the guide column (215) is slidably connected to the support rod (212), and the rotating shaft of the motor (216) is fixedly connected to the top end of the internal threaded tube (213).

5. The multifunctional safety device for electric power construction of claim 2, wherein: The lifting frame (221) is a scissor-type structure. The two ends of the electric push rod (223) are rotatably connected to the horizontal shafts on the left and right sides of the lifting frame (221) through the limiting block (222). The guide block (224) is rotatably connected to the limiting block (222). The transmission rod (225) is slidably connected to the guide block (224). The transmission rod (225) has protruding structures on both sides.

6. The multifunctional safety device for electric power construction of claim 2, wherein: The adapter (226) and the transmission rod (225) are rotatably connected. The top end of the telescopic rod (227) is rotatably connected to the adapter (226), and the bottom end is rotatably connected to the slide groove (229). The top end of the limiting tooth (228) is rotatably connected to the top end of the telescopic rod (227), and the lower bend is rotatably connected to the slide groove (229). The rack (2210) and the slide groove (229) are slidably connected.

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