Safety protection fence

Abstract

The utility model provides a safety protective fence, which belongs to the field of building construction safety equipment and comprises a plurality of protective fence units, each protective fence unit comprises a fixed fence frame and a movable fence frame, universal casters, end fixing devices and middle fixing devices are arranged on the fixed fence frames, and the movable fence frames are arranged on the movable fence frames. The protective fence unit is really, rapidly and simply carried and installed, and the problem that the installation efficiency is low due to the fact that a traditional safety protective fence is difficult to carry on a construction site due to the weight and the size is solved. Meanwhile, the height of the movable fence frame can be adjusted through the height adjusting device, so that the overall height of the whole safety protection fence is changed, and different construction environments and safety requirements are met.

Description

Technical Field

[0001] The utility model belongs to the field of construction safety equipment, and particularly relates to a safety protection fence. Background Art

[0002] In various occasions such as construction, industrial production, and road construction, safety protection fences are important facilities for ensuring personnel safety and demarcating work areas. However, in the design of traditional safety protection fences, there are multiple aspects that make them inconvenient for on-site handling and installation:

[0003] 1. Weight and volume: Traditional fences are mostly made of heavy materials such as steel, with a large overall weight and volume, which directly leads to difficulties in handling. When it is necessary to frequently change the construction site or respond to emergencies, this weight and volume become a major obstacle.

[0004] 2. Structural complexity: The structural design of traditional fences is often relatively complex, including multiple fasteners and connecting components. These components are easily damaged or lost during handling, and at the same time, professional personnel are required to use specific tools for operation during installation, increasing the complexity and time cost of installation.

[0005] 3. Lack of flexibility: The parameters such as the length and height of traditional fences are often fixed and cannot be flexibly adjusted according to the actual on-site situation. This results in the need to prepare multiple specifications of fences when facing different construction environments and safety requirements, increasing the difficulty of handling and installation. Due to the existence of the above problems, the installation process of traditional fences often takes a long time and requires multiple people to cooperate to complete. This not only increases the labor cost but also may affect the construction progress and the timeliness of safety protection, with low installation efficiency and difficult to meet the requirements of rapid deployment and safety protection. Content of the Utility Model

[0006] Aiming at the above problems in the prior art, the utility model aims to provide a safety protection fence, which solves the problem that the traditional safety protection fence is difficult to handle at the construction site due to its weight and volume, resulting in low installation efficiency.

[0007] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0008] A safety protection fence is provided, which includes a plurality of protection fence units. Each of the protection fence units includes a fixed fence frame. A plurality of first protection rods are arranged inside the fixed fence frame. Universal casters and end fixing devices are arranged at both ends of the bottom of the fixed fence frame. The end fixing device includes a fixed rod. The top end of the fixed rod is fixedly connected to the bottom of the fixed fence frame. The bottom end of the fixed rod is connected with a fixing plate with a plurality of mounting holes. A mounting screw is threadedly connected in each mounting hole. A plurality of middle fixing devices are arranged along the length direction of the bottom of the fixed fence frame. Each of the middle fixing devices includes a movable rod. The movable rod penetrates through the bottom of the fixed fence frame and is in clearance fit with the bottom of the fixed fence frame. Limiting plates and anchoring plates are fixedly connected to both ends of the movable rod respectively. A cylindrical spring is arranged between the limiting plate and the upper end surface of the bottom of the fixed fence frame. The anchoring plate is located below the bottom of the fixed fence frame and is used for contacting the ground. A plurality of mounting holes are arranged on the anchoring plate. An anchoring rod or an expansion bolt is arranged in each mounting hole.

[0009] The basic principle of a safety protection fence in the present utility model is as follows: The safety protection fence is set as a plurality of protection fence units to achieve modular design, which is convenient for transportation and storage. At the same time, universal casters are arranged on each protection fence unit, which is convenient for the handling of the protection fence unit at the construction site and improves the installation efficiency. When the installer transports the protection fence unit to the installation position, the height of the universal caster relative to the first cross beam is adjusted until the fixing plate contacts the ground and then stops. Then, the end fixing device is installed by screwing the mounting screw. Then, the movable rod is pressed down until the anchoring plate contacts the ground. Then, an anchoring rod or an expansion bolt is inserted into the mounting hole on the anchoring plate. The anchoring rod is suitable for soil ground, and the expansion bolt is suitable for hardened ground such as concrete, so as to fix and install the protection fence unit at the installation position and complete the construction of the safety protection fence, truly realizing fast and simple handling and installation.

[0010] Further, as a specific setting mode of the fixed fence frame, the fixed fence frame includes two first cross beams and two first columns. The two first cross beams are arranged at intervals in the vertical direction. The two first columns are arranged at intervals in the horizontal direction. The two first columns are respectively fixedly connected to both ends of the two first cross beams to form a rectangular structure. A plurality of the first protection rods are arranged horizontally and evenly at intervals between the two first cross beams. A universal caster is arranged at each end of the first cross beam at the bottom. A plurality of the middle fixing devices are arranged between the two universal casters. The movable rod penetrates through the first cross beam. The limiting plate and the anchoring plate are respectively located at the top and bottom of the first cross beam. The two ends of the cylindrical spring respectively contact the lower end surface of the limiting plate and the upper end surface of the first cross beam.

[0011] Furthermore, a threaded connecting shaft is provided at the top of each of the universal casters. The top of the threaded connecting shaft is threadedly connected to the first cross beam at the bottom. A fixing nut is welded to the middle of the threaded connecting shaft. The setting of the threaded connecting shaft facilitates the installation and disassembly between the universal caster and the first cross beam. At the same time, the threaded connecting shaft can be screwed by the fixing nut, thereby adjusting the height of the universal caster relative to the first cross beam until the fixing plate contacts the ground and then stops. Then, the fixing fence is fixed by screwing the mounting screws.

[0012] Furthermore, both of the first columns are square tube structures. A hinge lock piece with a lock hole is provided on each first column. The hinge lock piece can be used to connect multiple protective fence units into a whole, thereby forming a complete safety protection fence.

[0013] Furthermore, a slot is provided through the first cross beam at the top along its length direction. A movable fence is movably arranged in the slot. The setting of the movable fence can flexibly adjust the overall height of the entire safety protection fence according to the actual situation on site, meeting different construction environments and safety requirements.

[0014] Furthermore, the movable fence includes two second cross beams and two second columns. The two second cross beams and the two second columns are fixedly connected to form a rectangular structure. Multiple second protective rods are arranged in the movable fence.

[0015] A height adjusting device is provided between the first cross beam at the top and the second cross beam at the top. The height adjusting device includes two adjusting rods with external threads. The two adjusting rods are respectively located on both sides of the length direction of the first cross beam and the second cross beam. The top of each adjusting rod is fixedly connected to the lower end surface of the second cross beam. The bottom of the adjusting rod penetrates through the first cross beam and has a clearance fit with the first cross beam. An adjusting nut and a fastening nut are threadedly connected to the adjusting rod. The adjusting nut and the fastening nut are respectively located on the upper end surface and the lower end surface of the first cross beam.

[0016] When adjusting the relative height of the movable fence, first remove the fastening nut on the adjusting rod and adjust the position of the adjusting nut to the top of the adjusting rod. Then, the installer manually moves the movable fence up to the required position. Then, screw the adjusting nut on the adjusting rod to tightly contact the upper end surface of the first cross beam, and screw the fastening nut to tightly contact the lower end surface of the first cross beam, thereby fixing the vertical height of the top of the adjusting rod and the second cross beam fixedly connected to the top of the adjusting rod, and completing the adjustment of the height of the movable fence.

[0017] Furthermore, reflective stickers are pasted on the fixed fence and the movable fence. The reflective stickers are used for warning in the night environment.

[0018] Compared with the prior art, the beneficial effects of the utility model are as follows: A safety protection fence of the utility model is set as multiple protection fence units, realizing modular design, which is convenient for transportation and storage. At the same time, universal casters are arranged on each protection fence unit, facilitating the handling of the protection fence unit at the construction site and improving the installation efficiency; the setting of multiple middle fixing devices strengthens the connection strength between the protection fence unit and the ground and improves the stability of the protection fence itself; the overall height of the entire safety protection fence can also be flexibly adjusted according to the actual situation on site to meet different construction environments and safety requirements, truly realizing fast and simple handling and installation, and having a wide application prospect in various occasions such as building construction, industrial production, and road construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a safety protection fence.

[0020] Figure 2 It is a schematic structural diagram of a single protection fence unit.

[0021] Figure 3 It is a schematic installation structure diagram of a universal caster and an end fixing device.

[0022] Figure 4 It is a schematic installation structure diagram of a middle fixing device.

[0023] Figure 5 It is a schematic top view structure diagram of a slot arranged on the first cross beam.

[0024] Figure 6 It is a schematic structural diagram of an expansion bolt installed on an anchor plate.

[0025] Among them, 1. Protection fence unit; 2. Fixed fence frame; 3. First protection rod; 4. Universal caster; 5. End fixing device; 6. Fixed rod; 7. Fixed plate; 8. Installation screw; 9. Middle fixing device; 10. Movable rod; 11. Limit plate; 12. Anchor plate; 13. Cylindrical spring; 14. Anchor rod; 15. Expansion bolt; 16. First cross beam; 17. First column; 18. Threaded connection shaft; 19. Fixed nut; 20. Slot; 21. Movable fence frame; 22. Second cross beam; 23. Second column; 24. Second protection rod; 25. Height adjustment device; 26. Adjusting rod; 27. Adjusting nut; 28. Fastening nut; 29. Hinge lock piece. SPECIFIC EMBODIMENTS

[0026] The following describes the specific embodiments of the present utility model to facilitate those skilled in the art of this technology to understand the present utility model. However, it should be clear that the present utility model is not limited to the scope of the specific embodiments. For those of ordinary skill in the art of this technology, as long as various changes are within the spirit and scope of the present utility model defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present utility model are within the scope of protection.

[0027] As Figures 1 to 6 shown, the present utility model provides a safety protection fence, which includes a plurality of protection fence units 1. The safety protection fence is set as a plurality of protection fence units 1 to achieve modular design, facilitating transportation and storage.

[0028] Specifically, each protection fence unit 1 includes a fixed fence frame 2. A plurality of first protection rods 3 are arranged inside the fixed fence frame 2. Universal casters 4 and end fixing devices 5 are arranged at both ends of the bottom of the fixed fence frame 2. The universal casters 4 are lockable universal casters 4, which facilitate the handling of the protection fence unit 1 at the construction site and improve the installation efficiency. The end fixing device 5 includes a fixed rod 6. The top end of the fixed rod 6 is fixedly connected to the bottom of the fixed fence frame 2. The bottom end of the fixed rod 6 is connected with a fixing plate 7 with a plurality of mounting holes. A mounting screw 8 is threadedly connected in each mounting hole. When the universal caster 4 contacts the ground, the fixing plate 7 is in a suspended state, facilitating the handling of the entire protection fence unit 1.

[0029] A plurality of middle fixing devices 9 are arranged along the length direction of the bottom of the fixed fence frame 2. Each middle fixing device 9 includes a movable rod 10. The movable rod 10 penetrates the bottom of the fixed fence frame 2 and has a clearance fit with the bottom of the fixed fence frame 2. Limit plates 11 and anchoring plates 12 are respectively fixedly connected to both ends of the movable rod 10. A cylindrical spring 13 is arranged between the limit plate 11 and the upper end surface of the bottom of the fixed fence frame 2. Due to the setting of the cylindrical spring 13, the anchoring plate 12 is in a suspended state without external force, avoiding the collision between the anchoring plate 12 and the ground when moving the protection fence unit 1. The anchoring plate 12 is located below the bottom of the fixed fence frame 2 and is used to contact the ground. A plurality of mounting holes are arranged on the anchoring plate 12, and an anchoring rod 14 or an expansion bolt 15 is arranged in each mounting hole. The setting of the plurality of middle fixing devices 9 strengthens the connection strength between the protection fence unit 1 and the ground and improves the self-stability of the protection fence.

[0030] Specifically, the fixed fence frame 2 includes two first crossbeams 16 and two first columns 17. The two first crossbeams 16 are arranged at intervals in the vertical direction, and the two first columns 17 are arranged at intervals in the horizontal direction. The two first columns 17 are respectively fixedly connected to both ends of the two first crossbeams 16 to form a rectangular structure; a plurality of first protective rods 3 are evenly arranged at horizontal intervals between the two first crossbeams 16; a universal caster 4 is arranged at each end of the bottom first crossbeam 16; a plurality of middle fixing devices 9 are arranged between the two universal casters 4. The movable rod 10 penetrates through the first crossbeam 16, and the limiting plate 11 and the anchoring plate 12 are respectively located at the top and bottom of the first crossbeam 16; both ends of the cylindrical spring 13 are respectively in contact with the lower end face of the limiting plate 11 and the upper end face of the first crossbeam 16.

[0031] A threaded connection shaft 18 is arranged at the top of each universal caster 4. The top of the threaded connection shaft 18 is threadedly connected to the bottom first crossbeam 16, and a fixing nut 19 is welded to the middle of the threaded connection shaft 18. The arrangement of the threaded connection shaft 18 facilitates the installation and disassembly between the universal caster 4 and the first crossbeam 16. At the same time, the threaded connection shaft 18 can be screwed by the fixing nut 19, thereby adjusting the height of the universal caster 4 relative to the first crossbeam 16, facilitating the contact between the fixing plate 7 and the ground.

[0032] When installing the safety protection fence, when the installer transports the protection fence unit 1 to the installation position, the height of the universal caster 4 relative to the first crossbeam 16 is adjusted until the fixing plate 7 contacts the ground and then stops. Then, the end fixing device 5 is installed by screwing the installation screw 8; then the movable rod 10 is pressed down until the anchoring plate 12 contacts the ground, and then the anchoring rod 14 is inserted into the installation hole on the anchoring plate 12 or the expansion bolt 15 is driven in. The anchoring rod 14 is suitable for soil ground, and the expansion bolt 15 is suitable for hardened ground such as concrete, thereby realizing the fixed installation of the protection fence unit 1 at the installation position, completing the construction of the safety protection fence, and truly realizing fast and simple transportation and installation.

[0033] Preferably but not limitedly, both of the two first columns 17 are square tube structures, and a hinge lock piece 29 with a lock hole is arranged on each first column 17. The hinge lock piece 29 can be used to connect multiple protection fence units 1 to form a whole, thereby forming a complete safety protection fence.

[0034] Specifically, a slot 20 is arranged through the first crossbeam 16 at the top along its length direction, and a movable fence frame 21 is movably arranged in the slot 20. The arrangement of the movable fence frame 21 can flexibly adjust the overall height of the entire safety protection fence according to the actual situation on site, meeting different construction environments and safety requirements.

[0035] As a specific setting method, the movable fence frame 21 includes two second cross beams 22 and two second vertical columns 23. The two second cross beams 22 and the two second vertical columns 23 are fixedly connected to form a rectangular structure; a plurality of second protective rods 24 are arranged inside the movable fence frame 21.

[0036] A height adjustment device 25 is arranged between the first cross beam 16 at the top and the second cross beam 22 at the top. The height adjustment device 25 includes two adjusting rods 26 with external threads. The two adjusting rods 26 are respectively located on both sides of the first cross beam 16 and the second cross beam 22 in the length direction. The top of each adjusting rod 26 is fixedly connected to the lower end surface of the second cross beam 22. The bottom of the adjusting rod 26 penetrates through the first cross beam 16 and is in clearance fit with the first cross beam 16. An adjusting nut 27 and a fastening nut 28 are threadedly connected to the adjusting rod 26. The adjusting nut 27 and the fastening nut 28 are respectively located on the upper end surface and the lower end surface of the first cross beam 16.

[0037] When adjusting the relative height of the movable fence frame 21, first remove the fastening nut 28 on the adjusting rod 26, and adjust the position of the adjusting nut 27 to the top of the adjusting rod 26. Then the installer manually moves the movable fence frame 21 upward to the required position. Then, turn the adjusting nut 27 on the adjusting rod 26 to be in tight contact with the upper end surface of the first cross beam 16, and turn the fastening nut 28 to be in tight contact with the lower end surface of the first cross beam 16, so as to fix the vertical height of the top of the adjusting rod 26 and the second cross beam 22 fixedly connected to the top of the adjusting rod 26, and complete the adjustment of the height of the movable fence frame 21.

[0038] Reflective stickers are pasted on the fixed fence frame 2 and the movable fence frame 21. The reflective stickers are used to play a warning role in the night environment.

Claims

1. A safety protection fence, characterized in that: The invention comprises a plurality of protective fence units, each of which comprises a fixed fence frame, a plurality of first protective rods are arranged in the fixed fence frame, universal casters and end fixing devices are arranged at both ends of the bottom of the fixed fence frame, the end fixing devices comprise a fixed rod, the top end of the fixed rod is fixedly connected to the bottom of the fixed fence frame, the bottom end of the fixed rod is connected to a fixed plate with a plurality of mounting holes, a mounting screw is threadedly connected in each mounting hole, a plurality of middle fixing devices are arranged along the length direction of the bottom of the fixed fence frame, each of the middle fixing devices comprises a movable rod, the movable rod passes through the bottom of the fixed fence frame and is gap-matched with the bottom of the fixed fence frame, the two ends of the movable rod are respectively fixedly connected to a limit plate and an anchor plate, a cylindrical spring is arranged between the limit plate and the upper end surface of the bottom of the fixed fence frame, the anchor plate is located below the bottom of the fixed fence frame and is used to contact the ground, a plurality of mounting holes are arranged on the anchor plate, and an anchor rod or an expansion bolt is arranged in each mounting hole.

2. The safety protection fence according to claim 1, characterized in that: The fixed fence frame includes two first cross beams and two first columns, the two first cross beams are spaced apart in the vertical direction, the two first columns are spaced apart in the horizontal direction, and the two first columns are respectively fixedly connected to the two ends of the two first cross beams to form a rectangular structure; a plurality of first protective rods are evenly spaced horizontally between the two first cross beams; a universal caster is provided at both ends of the bottom first cross beam; a plurality of middle fixing devices are provided between the two universal casters, the movable rod passes through the first cross beam, and the limit plate and the anchor plate are respectively located at the top and bottom of the first cross beam; the two ends of the cylindrical spring are respectively in contact with the lower end surface of the limit plate and the upper end surface of the first cross beam.

3. The safety protection fence according to claim 2, characterized in that: A threaded connecting shaft is arranged on the top of each universal caster, the top of the threaded connecting shaft is threadedly connected to the first cross beam located at the bottom, and a fixing nut is welded to the middle of the threaded connecting shaft.

4. The safety protection fence according to claim 3, characterized in that: The two first upright posts are both square tube structures, and each first upright post is provided with a loose-leaf locking piece with a locking hole.

5. The safety protection fence according to claim 4, characterized in that: The first crossbeam at the top is provided with a slot running through it along its length direction, and a movable fence frame is movably provided in the slot.

6. The safety protection fence according to claim 5, characterized in that: The movable fence frame comprises two second cross beams and two second upright posts, and the two second cross beams and the two second upright posts are fixedly connected to form a rectangular structure; a plurality of second protection bars are arranged in the movable fence frame; A height adjustment device is arranged between the first crossbeam located at the top and the second crossbeam located at the top, and the height adjustment device includes two adjustment rods with external threads, and the two adjustment rods are respectively located on both sides of the length direction of the first crossbeam and the second crossbeam, and the top of each adjustment rod is fixedly connected to the lower end surface of the second crossbeam, and the bottom of the adjustment rod passes through the first crossbeam and is loosely matched with the first crossbeam, and an adjusting nut and a fastening nut are threadedly connected to the adjusting rod, and the adjusting nut and the fastening nut are respectively located on the upper end surface and the lower end surface of the first crossbeam.

7. The safety protection fence according to claim 6, characterized in that: Reflective stickers are pasted on the fixed fence frame and the movable fence frame.

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