An electric safety net

Abstract

This utility model discloses an easily assembled and disassembled power safety fence, belonging to the field of power safety protection equipment. It includes a fixed mounting base, posts, a fence, and a fence gate. The posts are divided into corner posts and straight-edge posts. The fence has semi-circular latches at both ends, which slide to the posts. A limiting mechanism is provided on the latches, and the posts have limiting holes. The limiting mechanism includes a limiting cavity, a slider, a limiting head, a pull rod, and a spring. The spring pushes the limiting head into the limiting hole for fixation, and pulling the rod unlocks it. During installation, the latches slide, and the spring pushes the limiting head to engage. During disassembly, pulling the pull rod disengages the limiting head, allowing the fence to slide off. The posts have an anti-corrosion coating, the latches contain lubricant and guide bevels, the fence has reflective strips, and the mounting base has anti-slip pads and anchor bolts. This fence can be quickly assembled and disassembled without tools, is stable, durable, and provides good warning effects, making it suitable for isolation at power work sites.

Description

Technical Field

[0001] This utility model relates to the field of power safety protection equipment technology, specifically to a power safety fence for isolation and protection at power operation sites, which has a quick disassembly and assembly function. Background Technology

[0002] In power maintenance and construction operations, to prevent non-operating personnel from accidentally entering dangerous areas and to ensure operational and public safety, power safety fencing is necessary to isolate the work area. Existing power safety fencing typically uses bolt connections, wire binding, or simple clips to assemble the fencing with the posts. Bolt connections require tools like wrenches for assembly and disassembly, making the process cumbersome and time-consuming, especially in situations with limited space or frequent fencing adjustments, resulting in extremely low efficiency. Wire binding is inconvenient for assembly and disassembly and can easily lead to the fencing detaching due to loose binding, posing a safety hazard. Simple clips, while tool-free, are often rigid and prone to loosening due to external vibrations, requiring forceful prying during disassembly, which can damage components. These methods fail to meet the requirements of power work sites for fencing that is "easy to assemble and disassemble, and stable and reliable." Therefore, developing a power safety fencing that can be quickly assembled and disassembled without tools and has strong stability after assembly is crucial to solving current technical challenges. Utility Model Content

[0003] To address the problems of inconvenient assembly and disassembly, reliance on tools, low efficiency, or poor stability of existing power safety fences, this utility model provides a power safety fence that is easy to assemble and disassemble. It enables rapid assembly and disassembly of the fence and posts without the need for additional tools, while ensuring the structural stability after assembly and improving the efficiency of fence layout and adjustment at power operation sites.

[0004] This easily assembled and disassembled power safety fence includes a fixed mounting base, posts, fence netting, and a fence gate, with the gate mounted on the posts. The posts are divided into two types: one type is installed at the corners of the fence, and the other type is installed along the straight edges of the fence. The corner posts consist of two support pillars and a right-angle block, while the straight-edge posts consist of two support pillars and a straight plate. Both types of posts are mounted on the fixed mounting base.

[0005] Both ends of the fence are fixed with semi-circular latches, which can slide to the support posts. The semi-circular latches are equipped with limit mechanisms, and the support posts are provided with limit holes that are compatible with the limit mechanisms. Through the cooperation of the limit mechanisms and the limit holes, the semi-circular latches can be fixed and unlocked on the support posts, thereby completing the assembly and disassembly of the fence.

[0006] The limiting mechanism includes a limiting slide cavity formed in a semi-circular bayonet opening. A slider is slidably connected inside the limiting slide cavity. One end of the slider is fixed with a limiting head that can extend into the limiting hole. The other end of the slider is fixed with a pull rod that extends to the outside of the semi-circular bayonet opening. A spring is sleeved on the pull rod inside the limiting slide cavity. One end of the spring abuts against the end face of the slider away from the limiting head, and the other end abuts against the inner wall of the limiting slide cavity. The natural length of the spring is greater than the length of the spring mounting section inside the limiting slide cavity, ensuring that the spring always exerts a thrust on the slider toward the limiting hole.

[0007] To enhance the practicality and durability of the device, the support column is made of hot-dip galvanized seamless steel pipe, with the outer surface coated with a polyvinyl chloride anti-corrosion coating. The coating thickness is 0.8-1.2mm, and the surface is matte gray, effectively resisting outdoor environmental corrosion. An annular oil groove filled with lithium-based grease is provided on the inner wall of the semi-circular bayonet to reduce friction when the bayonet slides against the support column. An outward-extending guide slope with an inclination angle of 30°-45° is provided at the opening of the semi-circular bayonet to facilitate quick alignment and sliding onto the support column. A circular grip is integrally formed at the end of the pull rod furthest from the slider, with a diameter larger than that of the pull rod, making it convenient for operators to pull the rod. A hemispherical guide surface is provided at the end of the limiting head furthest from the slider to reduce the contact resistance between the limiting head and the support column when the semi-circular bayonet slides.

[0008] The bottom of the fixed mounting base is fixed with a rubber anti-slip pad, which is 3-5mm thick, to increase the friction between the fixed mounting base and the ground and prevent the fence from shifting. The fixed mounting base has 4 anchor bolt holes evenly distributed around its circumference. Each anchor bolt hole is fitted with an anchor bolt with a lock nut. The length of the anchor bolt is not less than 100mm, ensuring that the fixed mounting base is firmly fixed to the ground.

[0009] At least three reflective warning strips are spaced along the length of the outer surface of the fence. The width of the reflective warning strips is 30mm-50mm, and the reflective warning strips are fixedly connected to the outer surface of the fence with high-strength adhesive. The spacing between two adjacent reflective warning strips is equal, which improves the warning effect at night or in low-light environments and prevents people from accidentally entering.

[0010] Installation process

[0011] Step 1: Install the mounting bracket. Place the mounting bracket at the designated location on the power work site, aligning the anchor bolt holes on the mounting bracket with the pre-set mounting holes in the ground. Pass the anchor bolts through the anchor bolt holes and screw them into the mounting holes in the ground. Finally, tighten the lock nuts on the anchor bolts to securely fix the mounting bracket. The rubber anti-slip pads will make close contact with the ground, further enhancing the stability of the fixation.

[0012] Step 2: Post Installation. According to the layout plan of the fence, install the corner posts (consisting of two support posts and a right-angle block) on the fixed mounting bases corresponding to the corners of the fence, and install the posts on the straight edges (consisting of two support posts and a straight plate) on the fixed mounting bases corresponding to the straight edges of the fence, ensuring that the posts and fixed mounting bases are firmly connected.

[0013] Step 3: Fence Installation. Holding the fence, align the semi-circular notch at one end of the fence with one of the adjacent posts. Using the guide ramp at the opening of the semi-circular notch, easily slide the notch onto the post. During the sliding process, the outer wall of the post presses against the hemispherical guide surface of the limiting head, causing the limiting head to retract into the limiting cavity, while simultaneously pushing the slider to compress the spring. Continue sliding the semi-circular notch until the limiting head on the notch aligns with the limiting hole on the post. At this point, the spring is no longer compressed. Under the elastic force of the spring returning to its natural length, the slider moves towards the limiting hole, causing the limiting head to extend out of the limiting cavity and engage with the limiting hole, thus fixing the semi-circular notch to the post. In the same way, fix the semi-circular notch at the other end of the fence to another adjacent post, completing the installation of a single section of the fence. Repeat the above operations to complete the installation of all the fences. After completing the installation of all the fences, install the fence gate on the pre-set posts to achieve isolation of the work area.

[0014] Disassembly process

[0015] When it is necessary to dismantle the fence, the operator holds the circular grip of the lever on the semi-circular latch and pulls the lever away from the post. The lever causes the slider to slide away from the limiting hole in the limiting cavity. The slider compresses the spring, and at the same time, the limiting head retracts with the slider and exits from the limiting hole on the post. At this time, the fixing relationship between the semi-circular latch and the post is released. Slide the semi-circular latch along the post to remove the fence from the post. After dismantling all the fences in the same way, unscrew the anchor bolts on the fixing bracket to remove the fixing bracket and the post together, completing the dismantling of the entire fence.

[0016] Beneficial effects

[0017] Easy to install and disassemble: With the cooperation of the semi-circular bayonet and the limiting mechanism, the installation and disassembly of the fence can be completed without any additional tools, simply by sliding the bayonet and pulling the lever. The operation is simple and greatly improves the efficiency of fence layout and adjustment, especially suitable for the rapid construction needs of power operation sites.

[0018] Secure assembly: The spring always exerts a pushing force on the limit head, ensuring that the limit head is stably locked into the limit hole, effectively preventing the fence from loosening due to external vibration or collision, and ensuring the reliability of isolation and protection. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the column and the semi-circular bayonet of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the second column and the semi-circular bayonet of this utility model;

[0023] Figure 4 This is a schematic diagram of the column structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the second column structure of this utility model;

[0025] Figure 6 This is a cross-sectional view of the semi-circular bayonet structure of this utility model;

[0026] Figure 7 for Figure 6 Enlarged structural diagram at point A in the middle;

[0027] In the picture:

[0028] 1. Fixed mounting base; 2. Fence; 3. Fence gate; 4. Post 1; 5. Post 2; 6. Semi-circular bayonet; 7. Limiting mechanism; 8. Limiting hole; 71. Limiting slide cavity; 72. Slider; 73. Limiting head; 74. Pull rod; 75. Spring. Detailed Implementation

[0029] 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.

[0030] like Figure 1-7 As shown;

[0031] A type of electrical safety fence.

[0032] This implementation plan addresses the technical problems existing in the prior art, such as those disclosed in the background section above: "In power maintenance, construction, and other work scenarios, to prevent non-operating personnel from accidentally entering dangerous areas and to ensure work safety and public safety, it is necessary to isolate the work area using power safety fencing. Existing power safety fencing often uses bolt connections, wire binding, or simple clips to assemble the fencing with the posts. When using bolt connections, the disassembly and assembly process requires tools such as wrenches, which is cumbersome and time-consuming, especially when the work site space is limited or the fencing range needs frequent adjustments, resulting in extremely low efficiency. When using wire binding, not only is disassembly and assembly inconvenient, but it is also prone to..." The loosening of the bindings has led to the detachment of the safety fence, posing a safety hazard. While simple clips require no tools, they are mostly rigid interlocking structures, easily loosening due to external vibrations after engagement. Furthermore, disassembly requires forcibly prying the clips, which can damage components and fails to meet the requirements of "easy assembly and disassembly, and stable and reliable" for power work sites. Therefore, developing a power safety fence that can be quickly assembled and disassembled without tools and has strong stability after assembly is key to solving the current technical pain points. In practical terms, this problem is clearly real and difficult to solve. Therefore, to address this technical problem, a power safety fence is proposed based on this approach.

[0033] Example 1

[0034] like Figure 1-7 As shown in the figure;

[0035] Component fabrication and parameter selection

[0036] Fixed mounting base 1: Made of Q235 steel plate, cut into a square shape with a side length of 200mm and a thickness of 15mm; the bottom of fixed mounting base 1 is fixed with a rubber anti-slip pad through a vulcanization process. The rubber anti-slip pad is 4mm thick (within the design range of 3-5mm) and made of nitrile rubber, which has good wear resistance and anti-slip properties; fixed mounting base 1 has 4 anchor bolt holes evenly distributed around its circumference. The diameter of the anchor bolt holes is 16mm. Each anchor bolt hole is suitable for installing an M12 anchor bolt. The length of the anchor bolt is 120mm (not less than the design requirement of 100mm). The anchor bolt is equipped with a lock nut. The lock nut is a nylon lock nut to ensure that it is not easy to loosen after fixing.

[0037] Posts: including Post 1 (corner post) and Post 2 (straight edge post), both are made of hot-dip galvanized seamless steel pipes with an outer diameter of 50mm and a wall thickness of 3mm. The outer surface of the hot-dip galvanized seamless steel pipes is coated with a polyvinyl chloride anti-corrosion coating through an electrostatic spraying process. The coating thickness is 1.0mm (within the design range of 0.8-1.2mm). The coating surface is matte gray to improve weather resistance and aesthetics.

[0038] Column 14: It consists of two hot-dip galvanized seamless steel pipe supports and a right-angle block. The right-angle block is made of stainless steel and is fixedly connected to one end of the two supports by welding. The two supports are at a 90° angle to form a corner structure. The other end of the support is fixed to the fixed mounting base 1 by welding to ensure a stable connection.

[0039] Column 25: It consists of two hot-dip galvanized seamless steel pipe supports and a straight plate. The straight plate is made of stainless steel and is fixedly connected to one end of the two supports by welding. The two supports are distributed in a straight line at 180° to form a straight edge structure. The other end of the support is fixed to the fixed mounting base 1 by welding.

[0040] Limiting holes 8 are provided on the support pillars of both pillar 4 and pillar 5. The diameter of the limiting holes 8 is 8mm, and they are spaced apart along the length of the support pillar (the spacing is determined according to the height requirement of the fence 2, usually 500mm-800mm), for use with the limiting mechanism 7.

[0041] Fence 2: Woven from high-carbon steel wire, with a mesh size of 50mm×50mm. The height of fence 2 is 1200mm, and the length is customized according to the needs of the work area (e.g., 2000mm, 3000mm, etc.). Three reflective warning strips are affixed at intervals along the length of the outer surface of fence 2 (meeting the design requirement of "at least three strips"). The width of the reflective warning strips is 40mm (within the design range of 30mm-50mm), and the material is PET reflective film. They are fixedly connected to the outer surface of fence 2 with high-strength acrylic adhesive. The spacing between two adjacent reflective warning strips is 600mm to ensure equal spacing and improve the uniformity of warning.

[0042] The semi-circular latch 6 is injection molded from ABS engineering plastic and has an overall semi-circular structure. Its inner diameter matches the outer diameter of the support column (i.e., 50mm), ensuring smooth sliding with the support column. An annular oil groove is provided on the inner wall of the semi-circular latch 6. The oil groove is 5mm wide and 2mm deep and is filled with lithium-based grease (model ZL-3) to reduce sliding friction. The opening of the semi-circular latch 6 has an outwardly extending guide slope with an inclination angle of 35° (within the design range of 30°-45°) to facilitate alignment with the support column. The semi-circular latch 6 is fixedly connected to both ends of the fence 2 by welding to ensure connection strength.

[0043] Limiting mechanism 7:

[0044] Limiting slide cavity 71: It is formed on the side wall of the semi-arc-shaped bayonet 6, and has a cylindrical structure with a diameter of 10mm and a depth of 25mm;

[0045] Slider 72: Made of nylon, cylindrical in shape, with a diameter that matches the limiting slide cavity 71 (10mm) and a length of 15mm, and can slide freely within the limiting slide cavity 71;

[0046] Limiting head 73: integrally formed with slider 72 (nylon material), cylindrical in shape, with a diameter of 8mm (fitting the limiting hole 8), and a length of 10mm. The end of the limiting head 73 away from slider 72 is machined with a hemispherical guide surface with a radius of 4mm.

[0047] Pull rod 74: Made of stainless steel, with a diameter of 5mm and a length of 30mm. One end is fixed to the end of slider 72 away from limit head 73 by threaded connection, and the other end extends to the outside of semi-circular bayonet 6. It is integrally formed with a circular grip part with a diameter of 12mm (larger than the diameter of pull rod 74) for easy hand pulling.

[0048] Spring 75: It is a cylindrical helical compression spring made of 65Mn spring steel with a wire diameter of 1mm, an outer diameter of 8mm, and a free length of 20mm. The length of the spring mounting section inside the limiting slide cavity 71 is 15mm (the natural length of spring 75 is greater than the length of the mounting section). Spring 75 is sleeved on the pull rod 74 inside the limiting slide cavity 71. One end of spring 75 abuts against the end face of the slider 72 away from the limiting head 73, and the other end abuts against the inner wall of the limiting slide cavity 71.

[0049] Fence gate 3: The structure is similar to that of fence 2. It is woven from the same high-carbon steel wire. The height is the same as that of fence 2 (1200mm) and the width is 800mm. The outer surface is also covered with 3 reflective warning strips with a width of 40mm. One side of fence gate 3 is connected to the post (post 1 4 or post 2 5) by a hinge, and the other side is fixed to the adjacent post by a semi-circular buckle 6. The disassembly and assembly method is the same as that of fence 2.

[0050] Assembly and usage steps

[0051] Site preparation: Clear the installation area of ​​the power operation site to ensure that the ground is flat. According to the fence layout plan, mark the installation position of the fixed mounting base 1 on the ground and pre-drill the anchor bolt holes (the depth should not be less than 120mm and should be adapted to the length of the anchor bolts).

[0052] Installation of fixed mounting bracket 1: Place fixed mounting bracket 1 at the marked position, align the anchor bolt holes with the preset holes in the ground, pass the anchor bolts through the anchor bolt holes and screw them into the ground holes, tighten the anti-loosening nut with a wrench until fixed mounting bracket 1 is tightly attached to the ground and the rubber anti-slip pad is fully compressed to prevent loosening.

[0053] Column installation: According to the marked corner and straight edge positions, weld the lower ends of the support columns of column 1 (corner) and column 2 (straight edge) to the fixed mounting base 1. When welding, ensure that the column is perpendicular to the ground, the two supports of column 1 (4) are at 90°, and the two supports of column 2 (5) are at 180°. After welding, clean the welding slag.

[0054] Installation of fence 2:

[0055] Take a section of fencing 2, hold one end of fencing 2, align the opening of the semi-circular latch 6 with the support of the adjacent post, and slide the semi-circular latch 6 onto the post along the guide slope.

[0056] Push the semi-circular bayonet 6 to slide along the support column. At this time, the support column squeezes the hemispherical guide surface of the limiting head 73. The limiting head 73 drives the slider 72 to compress the spring 75 until the limiting head 73 is aligned with the limiting hole 8 on the support column.

[0057] Spring 75 resets and pushes slider 72, causing limit head 73 to engage with limit hole 8, and semi-circular bayonet 6 to be fixed on the support column;

[0058] Repeat the above operation to fix the semi-circular buckle 6 at the other end of the fence 2 to the support of another post, thus completing the installation of a single section of fence 2.

[0059] Install all the fencing 2 in the same manner to form a continuous isolation zone.

[0060] Installation of the fence gate 3: Fix the hinge on one side of the fence gate 3 to the preset post (such as post 4) with bolts, and fix the semi-circular buckle 6 on the other side to the support of the adjacent post (in the same way as the fence 2) to ensure that the fence gate 3 can be opened and closed flexibly and is stable after closing.

[0061] Disassembly steps:

[0062] Pull the lever 74 on the semi-circular latch 6 on one side of the enclosure gate 3 to compress the spring 75, so that the limiting head 73 exits the limiting hole 8, slide off the semi-circular latch 6, and open the enclosure gate 3;

[0063] In the same manner, pull the levers 74 of the semi-circular latches 6 at both ends of each fence 2 in sequence, remove the semi-circular latches 6, and remove the fence 2 from the post;

[0064] Use a wrench to unscrew the anchor bolts on the fixed mounting base 1, and remove the fixed mounting base 1 and the post together to complete the dismantling of the entire fence.

[0065] Before installation, check that all components are intact, such as whether the semi-circular latch 6 has cracks, whether the spring 75 has normal elasticity, and whether the reflective warning strip is firmly attached.

[0066] The anchor bolts of the fixed mounting base 1 must be tightened to ensure that there is no looseness and to prevent the fence from tipping over.

[0067] When the semi-circular bayonet 6 is slidably installed, it is necessary to ensure that the limiting head 73 is accurately engaged in the limiting hole 8 to avoid the fence falling off due to failure to engage properly.

[0068] When disassembling, pull the lever 74 gently to avoid damaging the parts with excessive force. Store the disassembled parts properly for future use.

[0069] Regularly inspect the anti-corrosion coating, lubricant, and reflective warning strips of the fence. If any damage or wear is found, repair or replace them promptly to ensure the proper functioning of the equipment.

[0070] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A power safety fence, comprising a fixed mounting base (1) and a post mounted on the fixed mounting base (1), a fence (2) and a fence gate (3) on the mounting base post, characterized in that: The pillars include a first pillar (4) set at the corner and a second pillar (5) set at the straight edge. Both ends of the fence (2) are fixed with semi-circular bayonets (6). A limiting mechanism (7) is provided on the semi-circular bayonets (6). Limiting holes (8) are opened on the first pillar (4) and the second pillar (5). The first pillar (4) consists of two pillars and a right-angle block. The second pillar (5) consists of two pillars and a straight plate. The semi-circular bayonets (6) are slidably connected to the pillars. The limiting mechanism (7) includes a limiting slide cavity (71) opened on the semi-circular bayonets (6). A slider (72) is slidably connected inside the limiting slide cavity (71). A limiting head (73) that matches the limiting hole (8) is fixed at one end of the slider (72), and a pull rod (74) is fixed at the other end. A spring (75) is sleeved on the pull rod (74) inside the limiting slide cavity (71).

2. An electric safety net according to claim 1, characterized in that: Both column one (4) and column two (5) are made of hot-dip galvanized seamless steel pipes, and the outer surface of the hot-dip galvanized seamless steel pipes is coated with a polyvinyl chloride anti-corrosion coating with a thickness of 0.8-1.2mm. The surface of the anti-corrosion coating is matte gray.

3. An electrically safe net according to claim 2, characterised in that: The end of the pull rod (74) away from the slider (72) is integrally formed with a circular grip portion, the diameter of which is larger than the diameter of the pull rod (74).

4. A power safety fence according to claim 1, characterized in that: The inner wall of the semi-arc-shaped bayonet (6) is provided with an annular oil groove, which is filled with lithium-based grease. The opening of the semi-arc-shaped bayonet (6) is provided with a guide slope extending outward, and the inclination angle of the guide slope is 30°-45°.

5. A power safety fence according to claim 1, characterized in that: The bottom of the fixed mounting base (1) is fixed with a rubber anti-slip pad with a thickness of 3-5mm. The fixed mounting base (1) has 4 anchor bolt holes evenly opened along its circumference. Each anchor bolt hole is fitted with an anchor bolt with a lock nut. The length of the anchor bolt is not less than 100mm.

6. An electric safety net according to claim 1, characterized in that: The spring (75) of the limiting mechanism (7) is a cylindrical helical compression spring. One end of the spring (75) abuts against the end face of the slider (72) away from the limiting head (73), and the other end abuts against the inner wall of the limiting slide cavity (71). The natural length of the spring (75) is greater than the length of the spring mounting section in the limiting slide cavity (71). The end of the limiting head (73) away from the slider (72) is provided with a hemispherical guide surface.

7. A power safety fence according to claim 1, characterized in that: At least three reflective warning strips are provided at intervals along the length of the outer surface of the fence (2). The width of the reflective warning strips is 30mm-50mm, and the reflective warning strips are fixedly connected to the outer surface of the fence (2) by high-strength adhesive. The spacing between two adjacent reflective warning strips is equal.

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