Adjustable safety fence device for constructional engineering
The design of the adjustable safety fencing device solves the problem of insufficient adaptability of traditional fencing devices, and realizes flexible adjustment and portability of the protection range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ARANYA COMMERCIAL OPERATIONS MANAGEMENT (SUZHOU) CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional safety fencing devices have fixed sizes and shapes, making it difficult to adapt to changes in terrain and construction progress at different construction sites, resulting in security loopholes.
An adjustable safety enclosure device was designed. By combining a winding shaft, a metal mesh, a column, a chassis, a U-shaped rod, and support wheels, the metal mesh can be unfolded and shortened, and fixed by a locking mechanism to adjust the protection range. At the same time, the metal mesh can be rolled up and fixed by the cooperation of a handwheel and a drive shaft, reducing its size for easy carrying.
The safety fencing's protective range can be adjusted to adapt to different construction site terrains and progress changes, enhancing the protective effect and making it easy to carry.
Smart Images

Figure CN224173826U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building engineering technology, specifically an adjustable safety enclosure device for building engineering. Background Technology
[0002] Construction sites present numerous hazards, such as falling objects from heights, construction machinery operations, and overlapping work by different personnel. To ensure the safety of construction workers and pedestrians and to prevent unauthorized personnel from entering the construction area, safety fencing is an essential facility. Traditional safety fencing needs to have good isolation and protection performance to effectively block external objects and personnel and reduce the occurrence of safety accidents.
[0003] Traditional construction site fencing devices are usually fixed in size and shape, making it difficult to adapt to changes in terrain, topography, and construction progress at different construction sites. For example, in some construction sites with complex terrain, such as mountainous areas or irregular sites, fixed-size fencing cannot fit the site boundaries well, resulting in protective loopholes. Utility Model Content
[0004] In view of the above situation and to overcome the shortcomings of the existing technology, this utility model provides an adjustable safety fence device for construction projects, which effectively solves the problem that the current safety fence is difficult to adjust.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable safety enclosure device for construction projects, comprising an installation cylinder, wherein a fixing pile is fixedly connected to the bottom end of the installation cylinder, a locking mechanism is provided at the top end of the installation cylinder, and an enclosure mechanism is provided on the installation cylinder;
[0006] The enclosure mechanism includes a take-up shaft rotatably connected inside the mounting cylinder. A metal isolation net is wound around the outside of the take-up shaft. An avoidance groove is provided on the outside of the mounting cylinder, through which the metal isolation net passes. A column parallel to the cylinder is provided on the outside of the mounting cylinder. One end of the metal isolation net is fixed to the outside of the column. A base is fixedly connected to the bottom of the column. A U-shaped rod is fixedly connected to the bottom of the base. A sleeve block is fixedly sleeved on the middle of the outside of the U-shaped rod. A support wheel is provided at the bottom of the sleeve block.
[0007] Preferably, a lifting plate is movably sleeved on the outer side of the U-shaped rod, and two pillars are symmetrically fixedly connected to the bottom of the lifting plate, with rubber pads fixedly connected to the bottom ends of the two pillars.
[0008] Preferably, a screw is rotatably connected to the bottom end of the chassis, a support shaft is fixedly connected to the bottom end of the screw, the bottom end of the support shaft is rotatably connected to the top of the sleeve block, a turntable is fixedly installed on the outside of the support shaft, a threaded sleeve is threaded onto the outside of the screw, and a lifting plate is fixed to the outside of the threaded sleeve.
[0009] Preferably, the locking mechanism includes a drive shaft fixed to the top of the take-up shaft, the top of the drive shaft extending to the outside of the mounting cylinder and fixedly connected to a handwheel.
[0010] Preferably, a top block is fixedly connected to the top of the mounting cylinder, a drive shaft passes through the top block and is rotatably connected to the top block, a U-shaped rod three is fixedly connected to the outside of the top block, a sliding plate is movably sleeved on the outside of the U-shaped rod three, a U-shaped rod two is fixedly connected to the side of the sliding plate away from the top block, two springs are symmetrically fixedly connected between the sliding plate and the top block, both springs are sleeved on the outside of the U-shaped rod three, and an insert rod is fixedly connected to the top of the sliding plate.
[0011] Preferably, an outer ring is fixedly sleeved on the outer side of the drive shaft between the top block and the handwheel. Multiple insertion holes are provided at equal angles on the outer side of the outer ring, and the insertion rod is inserted into the corresponding insertion hole.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. The metal isolation net is easily unfolded and shortened through the cooperation between the winding shaft, metal isolation net, uprights, chassis, U-shaped round rod, sleeve block and support wheel. The two rubber pads are lowered and connected to the bottom surface through the cooperation between the turntable, support shaft, screw, screw sleeve, lifting plate, U-shaped round rod and support column, which can fix the position of the uprights and thus facilitate the adjustment of the protection range of the entire safety fence.
[0014] 2. The handwheel and drive shaft work together to allow the winding shaft to rotate and rewind the metal safety net. The handwheel can be locked by the U-shaped rod, sliding plate, spring, top block, insert rod and insertion hole, thus fixing the metal safety net after it is rewound. This reduces the overall size of the safety enclosure for easy carrying. Attached Figure Description
[0015] The accompanying drawings are provided to further understand 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 and do not constitute a limitation thereof.
[0016] In the attached diagram:
[0017] Figure 1 This is a schematic diagram of the adjustable safety enclosure device for building construction according to this utility model;
[0018] Figure 2 This is a schematic diagram of the enclosure mechanism of this utility model;
[0019] Figure 3 This is a schematic diagram of the chassis structure of this utility model;
[0020] Figure 4This is a schematic diagram of the locking mechanism of this utility model.
[0021] In the diagram: 1. Mounting cylinder; 2. Enclosure mechanism; 201. Rewinding shaft; 202. Metal isolation net; 203. Chassis; 204. Column; 205. Screw; 206. U-shaped round rod one; 207. Turntable; 208. Sleeve block; 209. Support wheel; 2010. Rubber pad; 2011. Support column; 2012. Support shaft; 2013. Lifting plate; 2014. Screw sleeve; 3. Locking mechanism; 301. Drive shaft; 302. Top block; 303. Insertion hole; 304. Outer ring; 305. Handwheel; 306. Insert rod; 307. U-shaped round rod two; 308. U-shaped round rod three; 309. Slide plate; 3010. Spring; 4. Fixing post; 5. Clearance groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Example 1, by Figure 1 The present invention relates to an adjustable safety enclosure device for building construction, comprising an installation cylinder 1, a fixing pile 4 fixedly connected to the bottom end of the installation cylinder 1, a locking mechanism 3 provided at the top end of the installation cylinder 1, and an enclosure mechanism 2 provided on the installation cylinder 1.
[0024] Specifically, by Figure 2-3The enclosure mechanism 2 includes a winding shaft 201 rotatably connected inside the mounting cylinder 1. A metal mesh 202 is wound around the outside of the winding shaft 201. A clearance groove 5 is provided on the outside of the mounting cylinder 1, through which the metal mesh 202 passes. A column 204 parallel to the mounting cylinder 1 is provided on the outside of the mounting cylinder 1. One end of the metal mesh 202 is fixed to the outside of the column 204. A base plate 203 is fixedly connected to the bottom end of the column 204. A U-shaped rod 206 is fixedly connected to the bottom of the base plate 203. A sleeve block 208 is fixedly sleeved on the middle of the outer side of the U-shaped rod 206. A support wheel 2 is provided at the bottom of the sleeve block 208. 09. A lifting plate 2013 is movably sleeved on the outside of the U-shaped round rod 206. Two pillars 2011 are symmetrically fixedly connected to the bottom of the lifting plate 2013. Rubber pads 2010 are fixedly connected to the bottom ends of the two pillars 2011. A screw 205 is rotatably connected to the bottom end of the chassis 203. A support shaft 2012 is fixedly connected to the bottom end of the screw 205. The bottom end of the support shaft 2012 is rotatably connected to the top of the sleeve block 208. A turntable 207 is fixedly installed on the outside of the support shaft 2012. A threaded sleeve 2014 is threaded onto the outside of the screw 205. The lifting plate 2013 is fixed to the outside of the threaded sleeve 2014.
[0025] In use, first, the upright 204 is moved, and at the same time, the winding shaft 201 is rotated, causing the metal isolation net 202 to unfold or retract. Meanwhile, the support wheel 209 rolls on the ground to ensure the stability of the upright 204 during movement. Then, the turntable 207 is rotated, driving the support shaft 2012 to rotate, which in turn drives the screw 205 to rotate. Through the screw sleeve 2014, the lifting plate 2013 slides down along the U-shaped round rod 206. Through the two pillars 2011, the two rubber pads 2010 are lowered until the two rubber pads 2010 abut against the ground, thus fixing the position of the upright 204. Finally, the protection range of the entire safety fence is adjusted.
[0026] Specifically, by Figure 4The locking mechanism 3 includes a drive shaft 301 fixed to the top of the take-up shaft 201. The top of the drive shaft 301 extends to the outside of the mounting cylinder 1 and is fixedly connected to a handwheel 305. A top block 302 is fixedly connected to the top of the mounting cylinder 1. The drive shaft 301 passes through the top block 302 and is rotatably connected to the top block 302. A U-shaped round rod 308 is fixedly connected to the outside of the top block 302. A sliding plate 309 is movably sleeved on the outside of the U-shaped round rod 308. The sliding plate 309 is located away from the top block 302. A U-shaped round rod 307 is fixedly connected to the side. Two springs 3010 are symmetrically fixedly connected between the slide plate 309 and the top block 302. Both springs 3010 are sleeved on the outside of the U-shaped round rod 308. A plug rod 306 is fixedly connected to the top of the slide plate 309. An outer ring 304 located between the top block 302 and the handwheel 305 is fixedly sleeved on the outside of the drive shaft 301. Multiple plug holes 303 are provided at equal angles on the outside of the outer ring 304. The plug rod 306 is inserted into the corresponding plug hole 303.
[0027] In use, first pull the second U-shaped rod 307, causing the slide plate 309 to slide along the third U-shaped rod 308, and causing the insertion rod 306 to move until it is pulled out from the corresponding insertion hole 303. At this time, both springs 3010 are stretched. Then rotate the handwheel 305 to drive the drive shaft 301 to rotate, and drive the winding shaft 201 to rotate to wind up the metal isolation net 202, so that the column 204 abuts against the installation cylinder 1. Then release the second U-shaped rod 307, so that the insertion rod 306 moves under the elastic force of the two springs 3010 and inserts into the corresponding insertion hole 303. Lock the handwheel 305 to prevent the winding shaft 201 from rotating arbitrarily. Finally, reduce the volume of the entire safety enclosure for easy carrying.
Claims
1. An adjustable safety enclosure device for construction projects, comprising an installation cylinder (1), characterized in that: The bottom end of the mounting cylinder (1) is fixedly connected to a fixing pile (4), the top end of the mounting cylinder (1) is provided with a locking mechanism (3), and the mounting cylinder (1) is provided with a enclosure mechanism (2); The enclosure mechanism (2) includes a winding shaft (201) rotatably connected inside the mounting cylinder (1). A metal isolation net (202) is wound around the outside of the winding shaft (201). A clearance groove (5) is provided on the outside of the mounting cylinder (1). The metal isolation net (202) passes through the clearance groove (5). A column (204) parallel to the outside of the mounting cylinder (1) is provided. One end of the metal isolation net (202) is fixed to the outside of the column (204). A base plate (203) is fixedly connected to the bottom end of the column (204). A U-shaped round rod (206) is fixedly connected to the bottom of the base plate (203). A sleeve block (208) is fixedly sleeved on the middle of the outside of the U-shaped round rod (206). A support wheel (209) is provided at the bottom of the sleeve block (208).
2. The adjustable safety enclosure device for construction projects according to claim 1, characterized in that: A lifting plate (2013) is movably sleeved on the outer side of the U-shaped round rod (206). Two pillars (2011) are symmetrically fixedly connected to the bottom of the lifting plate (2013), and rubber pads (2010) are fixedly connected to the bottom ends of the two pillars (2011).
3. The adjustable safety enclosure device for construction projects according to claim 1, characterized in that: The bottom end of the chassis (203) is rotatably connected to a screw (205), the bottom end of the screw (205) is fixedly connected to a support shaft (2012), the bottom end of the support shaft (2012) is rotatably connected to the top of the sleeve block (208), a turntable (207) is fixedly installed on the outside of the support shaft (2012), a threaded sleeve (2014) is threaded onto the outside of the screw (205), and a lifting plate (2013) is fixed to the outside of the threaded sleeve (2014).
4. The adjustable safety enclosure device for construction projects according to claim 1, characterized in that: The locking mechanism (3) includes a drive shaft (301) fixed to the top of the take-up shaft (201), the top of the drive shaft (301) extending to the outside of the mounting cylinder (1) and fixedly connected to a handwheel (305).
5. The adjustable safety enclosure device for construction projects according to claim 1, characterized in that: A top block (302) is fixedly connected to the top of the mounting cylinder (1). A drive shaft (301) passes through the top block (302) and is rotatably connected to the top block (302). A U-shaped round rod three (308) is fixedly connected to the outside of the top block (302). A sliding plate (309) is movably sleeved on the outside of the U-shaped round rod three (308). A U-shaped round rod two (307) is fixedly connected to the side of the sliding plate (309) away from the top block (302). Two springs (3010) are symmetrically fixedly connected between the sliding plate (309) and the top block (302). Both springs (3010) are sleeved on the outside of the U-shaped round rod three (308). A plug rod (306) is fixedly connected to the top of the sliding plate (309).
6. The adjustable safety enclosure device for construction projects according to claim 4, characterized in that: The drive shaft (301) is fixedly sleeved with an outer ring (304) located between the top block (302) and the handwheel (305). The outer ring (304) has multiple insertion holes (303) at equal angles on its outer side, and the insertion rod (306) is inserted into the corresponding insertion hole (303).