Safety fence convenient to adjust and install and using method

Abstract

The invention discloses a safety fence convenient to adjust and install and a using method, and belongs to the technical field of safety protection. The fence comprises modularized stand columns, upper cross beams, lower cross beams, fence plates, limiting structures, springs, supporting rods, fixing bases and the like. The breast board is rotationally installed on a fixing shaft of the stand column, angle adjustment and locking are achieved through a limiting structure, and the breast board is supported by the supporting rod and the pull rod. The using method comprises the steps of assembling the foundation frame, determining the supporting position, unlocking the angles of the breast boards, connecting and adjusting the supporting rods, locking the angles of the breast boards and splicing the whole fence. The problems that an existing safety fence is difficult to adjust flexibly, inconvenient to mount and dismount, poor in stability and the like are solved, and the safety fence has the advantages of being convenient to adjust and mount, good in stability, high in practicability and the like and can be widely applied to various construction scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection, and in particular to a safety fence that is easy to adjust and install and a method of using the fence. Background Art

[0002] In construction, municipal maintenance, power outages, and other operational scenarios, safety fences are critical for ensuring the safety of the work area and preventing unauthorized access. However, existing safety fences present numerous practical challenges. Traditional safety fences are often fixed in structure, making them difficult to adjust flexibly to the site's terrain and operational scope. Installation often requires extensive cutting and welding, which is not only time-consuming and labor-intensive, but also reduces the fence's versatility.

[0003] At the same time, existing fences have complex angle adjustment mechanisms, making the adjustment process cumbersome. The locking effect after adjustment is poor, making it prone to loosening, affecting the stability and safety of the fence. Furthermore, the connection between the various components of existing fences is not rational, making installation and disassembly inefficient, and inconvenient for transportation and storage, which increases construction costs and labor intensity. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a safety fence that is easy to adjust and install and a method of use to solve the problems of the existing safety fence being difficult to flexibly adjust, inconvenient to install and disassemble, and having poor stability.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A safety fence that is easy to adjust and install, comprising: Modular columns, with an upper crossbeam and a lower crossbeam fixedly connected between the two columns, and a fixed shaft fixedly connected to the middle of the column; The guardrail is rotatably mounted on the fixed shaft and together with the upper and lower crossbeams forms an enclosure that acts as an isolation barrier. A number of connecting seats for fixing the guardrail are fixedly connected to the guardrail; The limiting structures are respectively installed at both ends of the fence, including a threaded cylinder, a fixed cover, a limiting cylinder and a sliding cylinder. The threaded cylinder is fixedly connected to the column and slidably connected to the fixed shaft. The fixed cover is threadedly connected to the outer wall of the threaded cylinder. The limiting cylinder is rotatably connected to the fixed shaft and fixedly connected to the fence. The sliding cylinder is sleeved on the limiting cylinder and connected to the limiting cylinder key. One end of the sliding cylinder is fixedly connected to a fixed disk. The fixed disk is located between the threaded cylinder and the fixed cover. The fixed disk and the side surfaces adjacent to the fixed cover are fixedly connected with mutually matching engaging teeth. The spring is sleeved on the fixed shaft, one end of the spring is fixedly connected to the threaded barrel, and the other end is fixedly connected to the fixed disk; One end of the support pole is hinged to the connecting seat, and the other end is hinged to the fixing seat, and the fixing seat is fixedly connected to the ground. The support pole is located on the construction side of the fence.

[0006] Furthermore, the cross section of the limiting cylinder is configured to be a regular polygon, and correspondingly, the sliding cylinder is provided with an inner cavity that matches the limiting cylinder.

[0007] Furthermore, a handrail is fixedly connected to the outer wall of the sliding cylinder.

[0008] Furthermore, the connecting seats are provided in multiple rows, and the connecting seats at the bottom are connected with pull rods having the same structure as the support rods, and the length of the pull rods is shorter than the length of the support rods.

[0009] Furthermore, a handrail for rotating the guardrail is fixedly connected to one side of the guardrail located in the construction direction.

[0010] Furthermore, the threaded barrel is fixed to the column by bolts through a flange.

[0011] Furthermore, the upper crossbeam and the lower crossbeam are fixed to the columns by bolts through L-shaped connecting pieces.

[0012] Furthermore, the guardrail, upper crossbeam and lower crossbeam are made of lightweight materials, and a plurality of oblique ventilation slots for ventilation are provided on the guardrail.

[0013] Furthermore, a U-shaped pad is sleeved on the outer wall of the limiting cylinder, and the pad is arranged between the end of the sliding cylinder and the baffle, and is used to press the sliding cylinder to disengage the fixed plate of the sliding cylinder from the fixed cover, so as to rotate the baffle and then adjust the angle of the baffle on the fixed axis.

[0014] The present invention also provides a method for using a safety fence that is easy to adjust and install, and using the safety fence as described above, comprising the following steps: S1. Assemble the basic frame: Use L-shaped connectors to fix the upper and lower beams between adjacent modular columns with bolts, and rotate the guardrails on the middle of the columns through the fixed axis, so that the guardrails, upper and lower beams together form the enclosure basic structure; S2. Determine the support position: In the area on the construction side where excavation is not required, preset the relative position of the corresponding connecting seat on the guardrail and the ground fixing point according to the length of the support rod. Secure the fixing seat to the ground fixing point with expansion bolts, and hinge one end of the support rod to the fixing seat with an axle pin; S3. Unlocking the guardrail angle: The construction worker slides the sliding cylinder toward the center of the guardrail using the handrail on the outer wall of the sliding cylinder, or places a U-shaped pad between the sliding cylinder and the guardrail to disengage the engagement teeth of the fixed plate of the sliding cylinder and the fixed cover, thereby releasing the locked state of the guardrail; S4. Connect and adjust the support rods: Hold the handrail on the guardrail and rotate the guardrail. Hinge the other end of the support rod to the preset guardrail connecting seat via the axle pin. Slightly rotate the guardrail to put the support rod into a tensioned supporting state. If the guardrail has multiple rows of connecting seats, hinge one end of a pull rod that is shorter than the support rod to the same fixed seat and the other end to the connecting seat below the guardrail. S5. Lock the fence angle: Loosen the sliding cylinder or remove the pad. The sliding cylinder will reset under the action of the spring force, driving the meshing teeth of the fixed plate and the fixed cover to re-engage, thus locking the fence angle. S6. Splice the entire fence: Repeat steps S1 to S6, and sequentially splice multiple sections of fence using modular columns to form a continuous safety enclosure, and use the oblique ventilation slots on the fence panels to achieve air circulation.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Easy to adjust: Through the design of the limit structure, construction workers can easily unlock the angle of the guardrail, rotate the guardrail to the appropriate position and then lock it. The adjustment process is simple and fast, and the guardrail angle can be flexibly adjusted according to on-site operation needs to adapt to different terrains and operating ranges, thereby improving the versatility of the fence.

[0016] 2. Easy Installation: With a modular design, the columns, upper beams, and lower beams are fixed together using simple connectors and bolts. This eliminates the need for complex tools and specialized skills, significantly improving installation efficiency. Furthermore, the connections between the components are easy to disassemble, facilitating transportation and storage of the fence.

[0017] 3. Good stability: The railings are supported by support rods and pull rods. The support rods and pull rods exert forces on the railings from different angles and heights. Combined with the locking effect of the limiting structure, they can effectively prevent the railings from shaking or tipping over, ensuring the stability and safety of the fence during use.

[0018] 4. High Practicality: The guardrails, upper and lower crossbeams are made of lightweight materials, which reduces the overall weight of the fence and makes it easier to carry. The oblique ventilation slots on the guardrails not only ensure good ventilation, but also play a certain role in dust prevention, thus improving the practicality of the fence. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples: Figure 1 This is a schematic diagram of the main structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the right side structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the main structure of the limiting structure of an embodiment of the present invention; Figure 4This is a schematic diagram of the cross-section structure of the limiting structure according to an embodiment of the present invention.

[0020] In the above drawings: column 1, upper crossbeam 2, lower crossbeam 3, fixed shaft 4, guardrail 5, connecting seat 6, threaded cylinder 7, fixed cover 8, limit cylinder 9, sliding cylinder 10, fixed plate 11, engaging teeth 12, spring 13, strut 14, fixed seat 15, handrail 16, pull rod 17, handrail 18, flange 19, connector 20, ventilation slot 21, pad 22. DETAILED DESCRIPTION

[0021] The technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 4 As shown, a safety fence that is easy to adjust and install includes modular columns 1, an upper crossbeam 2 and a lower crossbeam 3 are fixedly connected between the two columns 1, and a fixed shaft 4 is fixedly connected to the middle of the column 1; a fence 5 is rotatably installed on the fixed shaft 4, and together with the upper crossbeam 2 and the lower crossbeam 3, it forms an enclosure that has an isolating effect, and a plurality of connecting seats 6 for fixing the fence 5 are fixedly connected to the fence 5; a limiting structure is respectively installed at both ends of the fence 5, including a threaded cylinder 7, a fixed cover 8, a limiting cylinder 9 and a sliding cylinder 10, the threaded cylinder 7 is fixedly connected to the column 1 and is slidably connected to the fixed shaft 4, and the fixed cover 8 is threadedly connected to the outer wall of the threaded cylinder 7, The limiting cylinder 9 is rotatably connected to the fixed shaft 4 and fixedly connected to the guardrail 5. The sliding cylinder 10 is sleeved on the limiting cylinder 9 and is key-connected to the limiting cylinder 9. One end of the sliding cylinder 10 is fixedly connected to a fixed disk 11. The fixed disk 11 is located between the threaded cylinder 7 and the fixed cover 8. The sides adjacent to the fixed disk 11 and the fixed cover 8 are fixedly connected with mutually matching engaging teeth 12; the spring 13 is sleeved on the fixed shaft 4, one end is fixedly connected to the threaded cylinder 7, and the other end is fixedly connected to the fixed disk 11; one end of the support rod 14 is hinged to the connecting seat 6, and the other end is hinged to the fixed seat 15. The fixed seat 15 is fixedly connected to the ground, and the support rod 14 is located on the side of the fence construction.

[0023] in like Figure 4 As shown, the cross-section of the limiting cylinder 9 is configured as a regular polygon, and correspondingly, the sliding cylinder 10 is provided with an inner cavity that cooperates with the limiting cylinder 9. The use of a regular polygon structure can ensure a reliable key connection between the sliding cylinder 10 and the limiting cylinder 9, so that the two rotate synchronously, while not affecting the axial sliding of the sliding cylinder 10 along the limiting cylinder 9, ensuring smooth angle adjustment. For example, the limiting cylinder 9 can be configured with a regular hexagonal cross-section, and the inner cavity of the sliding cylinder 10 is also a regular hexagon. The clearance between the two is controlled between 0.1-0.3mm, which ensures smooth sliding and torque transmission.

[0024] like Figure 4As shown, a handrail 16 is fixedly connected to the outer wall of the sliding cylinder 10. The handrail 16 can be welded to the outer wall of the sliding cylinder 10 using a cylindrical steel pipe with a diameter of 30-50mm and a length of 100-150mm, which is convenient for construction workers to hold and slide the sliding cylinder 10, making the operation more convenient and labor-saving.

[0025] like Figure 1 、 Figure 2 As shown, multiple rows of connecting blocks 6 are provided. Connecting to the lower connecting blocks 6 is a tie rod 17 having the same structure as the struts 14. Tie rods 17 are shorter than the struts 14. The multiple rows of connecting blocks 6 are evenly spaced along the height of the guardrail 5, with spacing of 300-500mm. They can be bolted to the guardrail 5. Tie rods 17 can be 1 / 2-2 / 3 the length of the struts 14. By cooperating with the struts 14, the guardrail 5 is supported from different heights, further improving its stability.

[0026] like Figure 1 、 Figure 2 As shown, a handrail 18 for rotating the guardrail 5 is fixedly connected to the side of the guardrail 5 in the construction direction. The handrail 18 can be made of an aluminum alloy tube with a cross-sectional size of 30mm×30mm and a length of 500-800mm. It is fixed to the middle of the guardrail 5 by bolts, making it easy for construction workers to rotate the guardrail 5 to adjust the angle.

[0027] like Figure 3 、 Figure 4 As shown, the threaded barrel 7 is fixed to the column 1 with bolts through the flange 19. The flange 19 is made of Q235 steel with a thickness of 8-12mm, and the bolts are high-strength bolts of M10-M12 to ensure that the threaded barrel 7 is firmly and reliably connected to the column 1 and easy to disassemble and replace.

[0028] like Figure 1 、 Figure 2 As shown, the upper crossbeam 2 and the lower crossbeam 3 are bolted to the column 1 via an L-shaped connector 20. The L-shaped connector 20 is made of aluminum alloy with a thickness of 5-8 mm, and the bolts are M8-M10 stainless steel bolts. This simple connection method is easy to install and remove, and can ensure the connection strength between the upper crossbeam 2 and the lower crossbeam 3 and the column 1.

[0029] The guardrails 5, upper crossbeams 2, and lower crossbeams 3 are made of lightweight materials. Several diagonally arranged ventilation slots 21 are provided on the guardrails 5 for ventilation. The guardrails 5 can be constructed from aluminum alloy frame panels or high-density polyethylene sheets, with a thickness of 10-20 mm. The upper crossbeams 2 and lower crossbeams 3 can be constructed from aluminum alloy square tubes with a cross-sectional dimension of 40 mm x 60 mm, reducing the overall weight of the fence and facilitating handling and installation. The ventilation slots 21 have an angle of 30°-60° with the horizontal, a slot width of 20-30 mm, and a slot spacing of 50-80 mm, ensuring effective ventilation while effectively preventing foreign debris from entering the construction area.

[0030] like Figure 3 、 Figure 4 As shown, a U-shaped spacer 22 is sleeved on the outer wall of the limiting cylinder 9. The spacer 22 is placed between the end of the sliding cylinder 10 and the fence 5. It is used to press the sliding cylinder 10 to disengage the fixed plate 11 of the sliding cylinder 10 from the fixed cover 8, thereby rotating the fence 5 and adjusting the angle of the fence 5 on the fixed shaft 4. The spacer 22 is made of hard plastic with a thickness of 20-30 mm, which reduces friction with the sliding cylinder 10 and the fence 5, and saves effort to rotate the fence 5.

[0031] The present invention also provides a method for using a safety fence that is easy to adjust and install. The specific steps of using the above-mentioned safety fence are as follows: S1. Assemble the basic frame: fix the upper crossbeam 2 and the lower crossbeam 3 between the adjacent modular columns 1 with bolts through the L-shaped connector 20, and rotate the guardrail 5 to be installed in the middle of the column 1 through the fixed axis 4, so that the guardrail 5 and the upper crossbeam 2 and the lower crossbeam 3 together constitute the basic structure of the enclosure.

[0032] S2. Determine the support position: In the area on the construction side where excavation is not required, preset the relative position of the corresponding connecting seat 6 on the guardrail 5 and the ground fixing point according to the length of the support rod 14, fix the fixing seat 15 to the ground fixing point with expansion bolts, and hinge one end of the support rod 14 to the fixing seat 15 with an axle pin.

[0033] S3. Unlocking the guardrail angle: The construction personnel slide the sliding cylinder 10 toward the center of the guardrail 5 through the handrail 16 on the outer wall of the sliding cylinder 10, or place a U-shaped pad 22 between the sliding cylinder 10 and the guardrail 5, so that the fixed plate 11 of the sliding cylinder 10 is disengaged from the engaging teeth 12 of the fixed cover 8, thereby releasing the locked state of the guardrail 5.

[0034] S4. Connect and adjust the support rod: hold the handrail 18 on the guardrail 5 and rotate the guardrail 5, hinge the other end of the support rod 14 to the preset guardrail 5 connecting seat 6 through the axle pin, and rotate the guardrail 5 slightly to make the support rod 14 in a tensioned support state; if the guardrail 5 is provided with multiple rows of connecting seats 6, hinge one end of the pull rod 17 whose length is shorter than the support rod 14 to the same fixed seat 15, and hinge the other end to the connecting seat 6 below the guardrail 5.

[0035] S5. Lock the angle of the fence: Loosen the sliding cylinder 10 or remove the pad 22. The sliding cylinder 10 is reset under the elastic force of the spring 13, driving the fixed plate 11 to re-engage with the engaging teeth 12 of the fixed cover 8, thereby locking the angle of the fence 5.

[0036] S6. Splicing the entire fence: Repeat steps S1-S6, and sequentially splice multiple sections of fence using modular columns 1 to form a continuous safety enclosure, and use the oblique ventilation slots 21 on the fence panels 5 to achieve air circulation.

[0037] By using the above safety fence and method, in construction sites with limited space, it is necessary to set the fence at a smaller angle. Through the above adjustment method, construction workers can rotate the guardrail 5 to form a smaller angle with the column 1, such as 30 degrees, and use the shorter support rod 14 for support, meeting the protection needs of narrow sites.

[0038] On a sloping site, the angle of the guardrail 5 is adjusted to keep it perpendicular to the ground. At the same time, the connection position of the support rod 14 and the pull rod 17 is adjusted according to the slope angle to ensure that the support rod 14 and the pull rod 17 are in a tensioned state to ensure the stability of the fence on the slope.

[0039] The present invention's easily adjustable safety fence features a rational structural design, convenient and quick adjustment and installation, and adaptability to diverse construction scenarios and terrain conditions. It exhibits excellent stability and practicality. Its modular structure facilitates mass production and widespread application, making it widely applicable in fields such as construction, municipal engineering, and power maintenance, demonstrating its high industrial utility.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A safety fence that is easy to adjust and install, characterized in that: include: Modular columns, with an upper crossbeam and a lower crossbeam fixedly connected between the two columns, and a fixed shaft fixedly connected to the middle of the column; The guardrail is rotatably mounted on the fixed shaft and together with the upper and lower crossbeams forms an enclosure that acts as an isolation barrier. A number of connecting seats for fixing the guardrail are fixedly connected to the guardrail; The limiting structures are respectively installed at both ends of the fence, including a threaded cylinder, a fixed cover, a limiting cylinder and a sliding cylinder. The threaded cylinder is fixedly connected to the column and slidably connected to the fixed shaft. The fixed cover is threadedly connected to the outer wall of the threaded cylinder. The limiting cylinder is rotatably connected to the fixed shaft and fixedly connected to the fence. The sliding cylinder is sleeved on the limiting cylinder and connected to the limiting cylinder key. One end of the sliding cylinder is fixedly connected to a fixed disk. The fixed disk is located between the threaded cylinder and the fixed cover. The fixed disk and the side surfaces adjacent to the fixed cover are fixedly connected with mutually matching engaging teeth. The spring is sleeved on the fixed shaft, one end of the spring is fixedly connected to the threaded barrel, and the other end is fixedly connected to the fixed disk; One end of the support pole is hinged to the connecting seat, and the other end is hinged to the fixing seat, and the fixing seat is fixedly connected to the ground. The support pole is located on the construction side of the fence.

2. A safety fence that is easy to adjust and install as claimed in claim 1, characterized in that: The cross section of the limiting cylinder is configured to be a regular polygon, and correspondingly, the sliding cylinder is provided with an inner cavity that matches the limiting cylinder.

3. The safety fence that is easy to adjust and install as claimed in claim 1, characterized in that: An armrest is fixedly connected to the outer wall of the sliding cylinder.

4. The safety fence that is easy to adjust and install as claimed in claim 1, characterized in that: The connecting seats are arranged in multiple rows, and the connecting seats at the bottom are connected with pull rods with the same structure as the support rods, and the length of the pull rods is smaller than the length of the support rods.

5. The safety fence that is easy to adjust and install as claimed in claim 1, characterized in that: A handrail for rotating the guardrail is fixedly connected to one side of the guardrail located in the construction direction.

6. The safety fence that is easy to adjust and install as claimed in claim 1, characterized in that: The threaded cylinder is fixed on the column by bolts through a flange.

7. The safety fence that is easy to adjust and install as claimed in claim 1, characterized in that: The upper cross beam and the lower cross beam are fixed to the columns by bolts through L-shaped connecting pieces.

8. The safety fence that is easy to adjust and install as claimed in claim 1, characterized in that: The guardrail, the upper crossbeam and the lower crossbeam are made of lightweight materials, and a plurality of obliquely arranged ventilation slots for ventilation are provided on the guardrail.

9. The safety fence that is easy to adjust and install as claimed in claim 1, characterized in that: A U-shaped pad is sleeved on the outer wall of the limiting cylinder. The pad is arranged between the end of the sliding cylinder and the fence, and is used to press the sliding cylinder to disengage the fixed plate of the sliding cylinder from the fixed cover, so as to rotate the fence and adjust the angle of the fence on the fixed axis.

10. A method for using a safety fence that is easy to adjust and install, characterized in that: Using the safety fence according to any one of claims 1 to 9 comprises the following steps: S1. Assemble the basic frame: Use L-shaped connectors to fix the upper and lower beams between adjacent modular columns with bolts, and rotate the guardrails on the middle of the columns through the fixed axis, so that the guardrails, upper and lower beams together form the enclosure basic structure; S2. Determine the support position: In the area on the construction side where excavation is not required, preset the relative position of the corresponding connecting seat on the guardrail and the ground fixing point according to the length of the support rod. Secure the fixing seat to the ground fixing point with expansion bolts, and hinge one end of the support rod to the fixing seat with an axle pin; S3. Unlocking the guardrail angle: The construction worker slides the sliding cylinder toward the center of the guardrail using the handrail on the outer wall of the sliding cylinder, or places a U-shaped pad between the sliding cylinder and the guardrail to disengage the engagement teeth of the fixed plate of the sliding cylinder and the fixed cover, thereby releasing the locked state of the guardrail; S4. Connect and adjust the support rods: Hold the handrail on the guardrail and rotate the guardrail. Hinge the other end of the support rod to the preset guardrail connecting seat via the axle pin. Slightly rotate the guardrail to put the support rod into a tensioned supporting state. If the guardrail has multiple rows of connecting seats, hinge one end of a pull rod that is shorter than the support rod to the same fixed seat and the other end to the connecting seat below the guardrail. S5. Lock the fence angle: Loosen the sliding cylinder or remove the pad. The sliding cylinder will reset under the action of the spring force, driving the meshing teeth of the fixed plate and the fixed cover to re-engage, thus locking the fence angle. S6. Splice the entire fence: Repeat steps S1 to S6, and sequentially splice multiple sections of fence using modular columns to form a continuous safety enclosure, and use the oblique ventilation slots on the fence panels to achieve air circulation.

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