Fabricated foam sandwich fence unit
The design of prefabricated foam sandwich fence units solves the problems of heavy construction fences and poor dust prevention, achieving lightweight installation and efficient dust removal, thus improving safety and dust prevention.
Patent Information
- Application Number
- CN202422703951.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-06
AI Technical Summary
The existing construction fences are heavy, difficult to transport and install, and personnel cannot evacuate quickly, resulting in poor dust control.
The prefabricated foam sandwich fence unit includes a rectangular outer frame and a sealing plate, which are bolted together. The sealing plate can be opened outwards. It is equipped with a sprinkler structure and an air extraction system, which uses water pumps and air pumps for dust removal.
It achieves lightweight installation, rapid removal, and efficient dust prevention, reducing production costs and improving safety and dust removal efficiency.
Smart Images

Figure CN223536141U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building technology, and in particular to a prefabricated foam sandwich fence unit. Background Technology
[0002] During construction, fences are erected to prevent unauthorized personnel from entering the construction area and to prevent dust pollution of the surrounding environment. Existing construction fences have the following shortcomings: they are heavy, making transportation and installation laborious; personnel can only exit through gates on the fence, hindering rapid evacuation in the event of an accident; and they are ineffective at preventing dust from spreading. Utility Model Content
[0003] The first objective of this invention is to provide a lightweight, modular foam sandwich fence unit that can be opened from the inside out, solving the problem that existing fences are heavy and that people within the fenced area are unable to escape through the fence.
[0004] The second objective of this invention is to provide a prefabricated foam sandwich fence unit with good dustproof performance, which solves the problem of poor dustproof performance of existing fences.
[0005] To achieve the aforementioned objectives, this utility model employs the following technology: a prefabricated foam sandwich fence unit, characterized in that it comprises a rectangular outer frame and a sealing plate of a closed rectangular outer frame hinged to the upper end of the rectangular outer frame. The sealing plate includes an outer shell and foam filled in an outer pit. The rectangular outer frame is provided with a blocking block to prevent the sealing plate from opening towards the area enclosed by the prefabricated foam sandwich fence unit during use. One end of the rectangular outer frame has a bolt hole, and the other end has a threaded hole. In use, several units of this utility model are spliced together to form a fence. During splicing, between adjacent units, a connecting bolt passes through the bolt hole of one unit and is threaded into the threaded hole of another unit to fix the two adjacent units together. This utility model has a foam-filled outer shell, is lightweight, easy to install, and low in cost. Designed as a structure that can open outwards, it can both prevent people from entering the enclosed area and allow those within the enclosed area to easily push open the sealing plate and escape in case of emergency, thus improving safety in the event of an accident.
[0006] Preferably, the lower end of the rectangular outer frame is provided with a balancing plate that extends beyond the rectangular outer frame at both ends along the closed thickness direction, for inserting connecting strips into the ground. In use, the fence remains upright on the ground by inserting the connecting strips into the ground. The balancing plate not only ensures that the fence unit remains in an upright position more reliably, but also allows the connecting strips to be driven into the ground by applying force to the edges of the balancing plate, making installation convenient.
[0007] Preferably, the lower end face of the connecting strip has a downward-facing cutting edge. This makes it easier to insert the connecting strip into the ground.
[0008] Preferably, a horizontal water inlet pipe extending along the width of the fence unit is connected to the lower side of the rectangular outer frame. A vertical water inlet pipe is connected to the horizontal water inlet pipe and is disposed on the rectangular outer frame. The vertical water inlet pipe extends towards the side of the rectangular outer frame where the blocking block is located and connects to the spray structure. One end of the horizontal water inlet pipe has a water inlet interface, and the other end has a water outlet interface. When the present invention is assembled into a fence, the horizontal water inlets of adjacent present inventions can be detachably connected to each other, and the telescopic water inlet interface of one present invention can be detachably connected to the water outlet interface of another present invention to achieve a sealed connection of the horizontal water inlet pipes of adjacent present inventions. In use, water is introduced into one end of the connected horizontal water inlet pipe by a water pump, and the other end of the horizontal water pipe is sealed. Water is sprayed out from the spray structure to suppress dust, thereby enabling the fence structure to spray water for dust removal.
[0009] Preferably, the water inlet is an upper pipe head with its opening facing downwards, and the water outlet is a lower pipe head with its opening facing upwards. When two adjacent pipe heads are joined together, the upper and lower pipe heads are detachably and sealed together. This eliminates the inconvenience of connecting horizontal water pipes and assembling the fence unit.
[0010] Preferably, the upper end of the lower pipe head has a conical hole with an inner circumferential surface that is smaller at the lower end and larger at the upper end, and a sealing ring passes through the conical hole. The lower end of the upper pipe head has a conical head with an outer circumferential surface that is larger at the upper end and smaller at the lower end. The bolt holes extend vertically and are horizontally offset from the lower pipe head. When the two pipes are assembled, the conical head passes through the conical hole and is sealed together by the sealing ring. When assembled, the upper and lower water pipes are easily aligned, and the connecting bolts between the upper and lower water pipes provide positioning, allowing the fence units to be accurately connected during installation.
[0011] Preferably, the sealing plate has a drain pipe and several dust collection plates distributed vertically on its surface on the side of the barrier block. The dust collection plate has one end higher than the other end, forming a water collection trough. The water collection trough has one end lower than the other along the width of the sealing plate. A baffle plate is provided at the lower end of the dust collection plate along the width of the sealing plate. The baffle plate has a drain hole communicating with the water collection trough, and the drain hole is connected to the drain pipe. The spray structure includes a vertical water outlet pipe connected to the vertical water inlet pipe and several horizontal water outlet pipes extending along the width of the sealing plate, corresponding to each other, located above the dust collection plates. The side walls of the horizontal water outlet pipes have spray slits extending downwards towards the dust collection plates, spraying water. This improves the dust removal effect and allows for centralized discharge of wastewater.
[0012] Preferably, the water mist sprayed from the water spray gaps covers the entire upper surface of the dust collection plate, which can further improve the dust removal effect.
[0013] Preferably, the system also includes an air pump and an air extraction pipe connected to the inlet end of the air pump. The dust collection plate has a water collection chamber inside, and the water collection chamber has an air extraction port connected to the air extraction pipe. The water collection chamber also has several air extraction holes penetrating the upper surface of the dust collection plate. This design more reliably prevents dust from flying over the fence.
[0014] Beneficial effects: The foam-filled structure is lightweight, which can reduce production costs; the area enclosed by the fence can easily pass through the fence cover; it has a good dustproof effect. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of the present utility model;
[0016] Figure 2 for Figure 1 C-C sectional view;
[0017] Figure 3 for Figure 2 A magnified view of a portion of point D;
[0018] Figure 4 Figure 3 A magnified view of a portion of point E;
[0019] Figure 5 for Figure 4 A magnified view of a portion of point F;
[0020] Figure 6 for Figure 2 A magnified view of a portion of point G;
[0021] Figure 7 This is a schematic diagram of the present invention when the parts are spliced together to form a fence;
[0022] Figure 8 for Figure 7 A magnified view of a portion of point A;
[0023] Figure 9 for Figure 8 A magnified view of a portion of point B.
[0024] In the diagram: 2. Rectangular outer frame; 11. Hinge; 3. Sealing plate; 4. Outer shell; 5. Foam; 6. Barrier block; 7. Bolt hole; 9. Threaded hole; 10. Connecting bolt; 12. Balance plate; 13. Connecting strip; 14. Blade; 15. Horizontal water inlet pipe; 16. Vertical water inlet pipe; 17. Water inlet interface; 18. Water outlet interface; 19. Sealing ring; 20. Cone head; 21. Drain pipe; 22. Dust collection plate; 23. Water collection trough; 24. Water baffle; 25. Drain hole; 26. Vertical water outlet pipe; 27. Horizontal water outlet pipe; 28. Water spray gap; 29. Water mist; 34. Air pump; 35. Air extraction pipe; 36. Water receiving chamber; 38. Air extraction port; 39. Air extraction hole. Detailed Implementation
[0025] 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.
[0026] See Figures 1 to 9A prefabricated foam sandwich fence unit includes a rectangular outer frame 2 and a sealing plate 3 that closes the rectangular outer frame at its upper end via a hinge 11. In use, several units are assembled together to form a fence. The rectangular outer frame is made of aluminum alloy. The sealing plate includes a shell 4 and foam 5 filled in an outer pit. The rectangular outer frame has a blocking block 6 to prevent the sealing plate from opening towards the area enclosed by the prefabricated foam sandwich fence unit during use. Between adjacent fence units, one fence unit has bolt holes 7 on its rectangular outer frame, and the other fence unit has threaded holes 9 (the threaded holes are formed by the inner hole of a nut). Connecting bolts 10 pass through the bolt holes and are threaded into the threaded holes to fix the two adjacent fence units together. The connecting bolts extend vertically. Pushing the sealing plate outwards towards the area enclosed by the prefabricated foam sandwich fence unit allows the sealing plate to rotate around the hinge and open. The lower end of the rectangular outer frame is provided with a balance plate 12 that extends beyond the rectangular outer frame at both ends along the closed thickness direction. A connecting strip 13 for insertion into the ground is provided in the middle of the lower surface of the balance plate. A downward-facing cutting edge 14 is provided on the lower end face of the connecting strip. A horizontal water inlet pipe 15 extending along the width direction of the fence unit is connected to the lower side of the rectangular outer frame. A vertical water inlet pipe 16, located on the rectangular outer frame, is connected to the horizontal water inlet pipe. The vertical water inlet pipe extends towards the side of the rectangular outer frame with the blocking block and connects to the sprinkler structure. One end of the horizontal water inlet pipe has a water inlet interface 17, and the other end has a water outlet interface 18. Adjacent fence units can be detachably connected, with the telescopic water inlet interface of one fence unit connected to the water outlet interface of another fence unit. The horizontal water inlet pipes of adjacent fence units are sealed together. Specifically, the water inlet is an upper pipe head with its opening facing downwards, and the water outlet is a lower pipe head with its opening facing upwards. The upper end of the lower pipe head has a conical hole with an inner circumferential surface that is smaller at the bottom and larger at the top. A sealing ring 19 passes through the conical hole. The lower end of the upper pipe head has a conical head 20 with an outer circumferential surface that is larger at the top and smaller at the bottom. The conical head passes through the conical hole and is sealed together by the sealing ring. When the fence units of the box girder are connected by connecting bolts, the upper and lower pipe heads are also squeezed together to seal them. The connecting bolts and the lower pipe head are staggered in the horizontal direction. A drain pipe 21 and several dust collection plates 22 distributed vertically are connected to the surface of the sealing plate on the side of the barrier block. The end of the dust collection plate connected to the sealing plate is higher than the other end, forming a water collection trough 23. The water collection trough is lower at one end and higher at the other end along the width direction of the sealing plate. A baffle plate 24 is provided at the lower end of the dust collection plate along the width direction of the sealing plate. The baffle plate has a drain hole 25 communicating with the water collection trough, and the drain hole is connected to the drain pipe. The spray structure includes a vertical water outlet pipe 26 connected to the vertical water inlet pipe and several horizontal water outlet pipes 27 corresponding to each other located above the dust collection plate and extending along the width direction of the sealing plate. The side wall of the horizontal water outlet pipes has spray slits 28 extending downwards towards the dust collection plate along the extension direction of the horizontal water outlet pipes. The water mist 29 sprayed from the spray slits covers the entire upper surface of the dust collection plate.It also includes an air pump 34 and an air extraction pipe 35 connected to the inlet end of the air pump. The dust collection plate is provided with a water collection chamber 36. The water collection chamber is provided with an air extraction port 38 connected to the air extraction pipe. The water collection chamber is provided with several air extraction holes 39 that penetrate the upper surface of the dust collection plate.
[0027] In operation, a water pump supplies water from one end of a connected horizontal inlet pipe, while the other end is sealed. Water sprays out through the gaps to remove dust, which adheres to the artificial tree and is then washed off and drained through a collection trough and drain pipe. An air pump also draws air, directing it downwards onto the dust collection plate surface, thereby improving the dust removal effect.
Claims
1. A prefabricated foam sandwich fence unit, characterized in that, The enclosure includes a rectangular outer frame and a closed rectangular outer frame hinged at the top. The enclosure includes a shell and foam filled in the outer pit. The rectangular outer frame is provided with a blocking block to prevent the enclosure from opening toward the area enclosed by the assembled foam sandwich fence unit when in use. One end of the rectangular outer frame is provided with a bolt hole and the other end is provided with a threaded hole.
2. The prefabricated foam sandwich fence unit according to claim 1, characterized in that, The lower end of the rectangular outer frame is provided with a balance plate that extends beyond the rectangular outer frame at both ends along the closed thickness direction, and the middle of the lower surface of the balance plate is provided with a connecting strip for insertion into the ground.
3. A prefabricated foam sandwich fence unit according to claim 2, characterized in that, The lower end face of the connecting strip is provided with a downward-facing cutting edge.
4. A prefabricated foam sandwich fence unit according to claim 1, 2, or 3, characterized in that, A horizontal water inlet pipe for the fence unit, extending along the width direction of the fence unit, is connected to the lower side of the rectangular outer frame. A vertical water inlet pipe is connected to the horizontal water inlet pipe and is set on the rectangular outer frame. The vertical water inlet pipe extends towards the side of the rectangular outer frame where the blocking block is located and is connected to the spray structure. One end of the horizontal water inlet pipe is provided with a water inlet interface and the other end is provided with a water outlet interface.
5. A prefabricated foam sandwich fence unit according to claim 4, characterized in that, The water inlet is an upper pipe head with the opening facing downwards, and the water outlet is a lower pipe head with the opening facing upwards.
6. A prefabricated foam sandwich fence unit according to claim 5, characterized in that, The upper end of the lower tube head is provided with a conical hole with an inner circumferential surface that is smaller at the lower end and larger at the upper end. A sealing ring is inserted into the conical hole. The lower end of the upper tube head is provided with a conical head with an outer circumferential surface that is larger at the upper end and smaller at the lower end. The bolt hole extends vertically and is staggered horizontally from the lower tube head.
7. A prefabricated foam sandwich fence unit according to claim 4, characterized in that, The sealing plate is connected to a drain pipe and several dust collection plates distributed vertically on its surface on the side of the barrier block. The dust collection plate is connected to the sealing plate at one end, which is higher than the other end, forming a water collection trough. The water collection trough is lower at one end and higher at the other end along the width direction of the sealing plate. A water baffle is provided at the lower end of the dust collection plate along the width direction of the sealing plate. The water baffle is provided with a drain hole communicating with the water collection trough. The drain hole is connected to the drain pipe. The spray structure includes a vertical water outlet pipe connected to the vertical water inlet pipe and several horizontal water outlet pipes extending along the width direction of the sealing plate and located above the dust collection plate. The side wall of the horizontal water outlet pipe is provided with a spray gap extending downward toward the dust collection plate along the extension direction of the horizontal water outlet pipe.
8. A prefabricated foam sandwich fence unit according to claim 7, characterized in that, The water mist sprayed from the water spray gaps covers the entire upper surface of the dust collection plate.
9. A prefabricated foam sandwich fence unit according to claim 7, characterized in that, It also includes an air pump and an air extraction pipe connected to the inlet end of the air pump. The dust collection plate has a water collection chamber inside, and the water collection chamber has an air extraction port connected to the air extraction pipe. The water collection chamber has several air extraction holes that penetrate the upper surface of the dust collection plate.