Concrete base enclosure
By improving the trapezoidal slot self-locking, back bracing fastening, inclined surface segmented design and drainage holes of the concrete base, the safety hazards of the protruding parts of the existing fence were solved, the construction convenience and overall aesthetics were improved, and public safety was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TONGYUAN CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-08
AI Technical Summary
The existing concrete base enclosure has protruding parts, which poses a risk of injury in the event of a collision, and is inconvenient to construct, and lacks safety and aesthetics.
It adopts a trapezoidal enclosure slot self-locking design, back support fastening, segmented inclined surface, bottom groove and upper lifting hole structure, combined with drainage hole design, and optimizes the base structure to improve safety and convenience.
It eliminates the risk of injury from protruding parts, improves the stability and ease of construction of the fence, enhances safety and aesthetics, and avoids water accumulation problems.
Smart Images

Figure CN224213910U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fencing, specifically to a concrete base fencing. Background Technology
[0002] In modern construction sites and municipal engineering projects, fencing serves as a crucial safety protection facility, playing a vital role in isolating construction areas and ensuring pedestrian safety. Currently, while the common concrete base with metal fencing structure is widely used, its inherent safety hazards cannot be ignored. Taking the movable base fencing disclosed in patent CN2022200822400 as an example, after fixing the fencing with horizontal fasteners, protrusions inevitably form on the sloping surface of the base. This design flaw poses a significant risk in actual use. When pedestrians or vehicles accidentally collide with the fencing, these protrusions act like sharp blades, significantly aggravating the damage to the colliding object and greatly threatening public safety. Utility Model Content
[0003] In view of the above, the purpose of this utility model is to provide a concrete base enclosure to address the problems of the prior art.
[0004] This solution provides a concrete base enclosure, comprising a concrete base, an enclosure, and a back support. The top surface of the concrete base is provided with an enclosure slot, the enclosure slot having a trapezoidal cross-section, wider at the top and narrower at the bottom. The enclosure is inserted into the enclosure slot, and as the insertion depth increases, the friction between the enclosure and the enclosure slot gradually increases, thereby achieving self-locking of the enclosure. A T-slot is provided next to the enclosure slot, and a bolt is fitted into the T-slot. The back support is fixed and pressed against the back of the enclosure by the bolt.
[0005] Furthermore, the concrete base has inclined surfaces on its front and rear sides, and at least one of the inclined surfaces on both sides is a segmented inclined surface, with the angle of the upper segment of the segmented inclined surface being smaller than that of the lower segment.
[0006] Furthermore, the bottom of the concrete base has at least two grooves.
[0007] Furthermore, at least two lifting holes are provided on the upper side of the concrete base.
[0008] Furthermore, a metal threaded tube is embedded in the lifting hole, and a lifting ring is connected to the metal threaded tube.
[0009] Furthermore, drainage holes are pre-drilled in the concrete base, and these drainage holes lead to the enclosure slots. Beneficial effects
[0010] Firstly, the enclosure slot adopts a trapezoidal design that is larger at the top and smaller at the bottom, which enables the enclosure to lock itself. Then, it is fastened with back bracing, avoiding additional protruding horizontal fasteners and eliminating the risk of injury from protruding parts during collisions.
[0011] Secondly, the inclined surface and segmented inclined surface design of the concrete base bring the center of gravity closer to the center of the base, which reduces material usage and costs, while also improving the stability against external impacts and further ensuring public safety.
[0012] Thirdly, the design of the bottom groove and the upper lifting hole facilitates the handling of forklifts and lifting equipment, improves the convenience of construction, and the lifting rings can be removed after use, so that the base can be tightly arranged into a netting, ensuring the overall aesthetics and practicality of the fence.
[0013] Fourth, the drainage holes prevent water from accumulating in the fence slots and causing odors, thus optimizing the fence's operating environment. Attached Figure Description
[0014] Figure 1 , Figure 2 These are schematic diagrams of the three-dimensional structure of this application from different perspectives;
[0015] Figure 3 This is a schematic diagram of the back support assembly.
[0016] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0017] Figure 5 This is a schematic diagram of the assembly of the lifting ring;
[0018] Reference numerals: 1. Concrete base; 101. Enclosure slot; 102. T-slot; 103. Segmented slope; 104. Groove; 105. Lifting hole; 106. Drainage hole; 2. Enclosure; 3. Back support; 4. Bolt; 5. Threaded metal pipe; 6. Lifting ring. Detailed Implementation
[0019] 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.
[0020] Reference Figures 1 to 2The diagram shows a concrete base enclosure. The top surface of the concrete base 1 has an enclosure slot 101. The slot 101 has a trapezoidal cross-section, wider at the top and narrower at the bottom, to accommodate enclosure 2, facilitating insertion. As the cross-section decreases after insertion, the friction gradually increases, enabling self-locking of the enclosure 2. Next to the enclosure slot 101 on the top surface of the concrete base 1, a pre-drilled T-slot 102 serves as a mounting hole for bolts 4, allowing them to be inserted. The concrete base 1 can be fitted with a back brace 3, which, after being secured by the inserted bolts 4, is pressed against the back of the enclosure 2 to increase its stability.
[0021] Preferably, the concrete base 1 has inclined surfaces on its front and rear sides. The inclined surfaces are designed to bring the center of gravity closer to the center of the base. For example, this can prevent tipping during storage or transportation and better resist impact when encountering external forces.
[0022] At least one of the inclined surfaces on both sides is a segmented inclined surface 103. The upper segmented inclined surface 103 has a relatively small upper angle, so it can reduce the amount of material used and further lower the center of gravity, thus improving stability.
[0023] The bottom of the concrete base 1 is provided with at least two grooves 104 to facilitate forklift insertion and handling.
[0024] The upper side of the concrete base 1 is provided with at least two lifting holes 105 to facilitate the insertion and handling of lifting equipment. A threaded metal tube 5 can be embedded in the lifting hole 105 to accommodate a lifting ring 6, further facilitating the handling of the lifting equipment. The lifting ring 6 needs to be removed when the concrete base enclosure is used so that the concrete base 1 can be tightly arranged in a row to form an isolation net.
[0025] The concrete base 1 is pre-drained with a drainage hole 106 during the pouring process. The drainage hole 106 leads to the enclosure slot 101, which can prevent water from accumulating and causing odor in the enclosure slot 101.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A concrete base enclosure, characterized in that, The enclosure includes a concrete base (1), a fence (2), and a back support (3). The top surface of the concrete base (1) is provided with a fence slot (101). The fence slot (101) has a trapezoidal cross section, which is larger at the top and smaller at the bottom. The fence (2) is inserted into the fence (2) socket. As the insertion depth increases, the friction between the fence (2) and the fence slot (101) gradually increases, thereby achieving the self-locking of the fence (2). A T-shaped groove (102) is provided next to the fence slot (101). A bolt (4) is installed in the T-shaped groove (102). The back support (3) is fixed and pressed against the back of the fence (2) by the bolt (4).
2. The concrete base enclosure according to claim 1, characterized in that, The concrete base (1) has inclined surfaces on its front and rear sides. At least one of the inclined surfaces on both sides is a segmented inclined surface (103). The angle of the upper inclined surface of the segmented inclined surface (103) is smaller than that of the lower inclined surface.
3. A concrete base enclosure according to claim 1, characterized in that, The bottom of the concrete base (1) is provided with at least two grooves (104).
4. A concrete base enclosure according to claim 1, characterized in that, The upper side of the concrete base (1) is provided with at least two lifting holes (105).
5. A concrete base enclosure according to claim 4, characterized in that, A metal threaded tube (5) is embedded in the lifting hole (105), and a lifting ring (6) is connected to the metal threaded tube (5).
6. A concrete base enclosure according to claim 1, characterized in that, A drainage hole (106) is provided in the concrete base (1), and the drainage hole (106) leads to the enclosure slot (101).