A reinforcing cage outer sleeve steel wire mesh fixing structure
By employing a fixed positioning hook and a movable locking hook structure outside the reinforcing cage, and utilizing bolt connections and carbon steel materials, the problems of inconvenient and unstable wire mesh fixing were solved, achieving stable locking of the wire mesh outside the reinforcing cage, thus improving the pile formation quality and construction economy of the cast-in-place piles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YUHONG CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-24
AI Technical Summary
In existing technologies, it is inconvenient and not secure to fix the wire mesh outside the reinforcing cage, which makes it difficult to control the filling coefficient during concrete pouring, affecting the quality of cast-in-place piles and construction costs.
The structure employs a fixed positioning hook and a movable locking hook head, which are connected by bolts to achieve a firm fixation of the wire mesh outside the rebar cage. The fixed positioning hook and movable locking hook head, made of carbon steel, work together with the rotation of the bolts and the positioning protrusions to achieve stable locking of the wire mesh.
This improved the fixation strength and flexibility of the wire mesh outside the reinforcing cage, ensured the control of the filling coefficient during concrete pouring, and enhanced the pile formation quality and construction efficiency of the cast-in-place piles.
Smart Images
Figure CN224549100U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of steel wire mesh fixing structure for steel cages, specifically a steel wire mesh fixing structure for steel cages. Background Technology
[0002] A reinforcing cage is a cage-shaped frame made of reinforcing bars tied or welded in a specific shape. It is mainly used in concrete structures to improve tensile strength. Concrete itself has high compressive strength but low tensile strength. The addition of a reinforcing cage can effectively restrain the concrete, enabling it to withstand axial tensile force and enhancing the stability and load-bearing capacity of the overall structure. In coastal areas of my country, there are often deep silt layers. Under these geological conditions, groundwater is generally abundant. The silt layer is thick, highly fluid, and sensitive, making it easily susceptible to disturbance and large strain. When using cast-in-place piles as the pile foundation for building projects under such geological conditions, problems such as excessive concrete filling coefficient and poor pile quality often occur. In this case, it is particularly important to control the filling coefficient during concrete pouring, ensure the quality of cast-in-place piles, and guarantee economic benefits during construction. During the pouring of the reinforcing cage, it is necessary to wrap it with wire mesh for support. In the prior art, such as the authorized announcement number CN217378853U, this utility model discloses a steel wire mesh structure for the outer casing of a cast-in-place pile reinforcement cage, including a reinforcement cage, a steel wire mesh on the outer side of the reinforcement cage, and a steel wire mesh support structure between the reinforcement cage and the steel wire mesh. The steel wire mesh support structure includes a support rod, an outer reinforcing hoop, and an outer longitudinal reinforcement. The outer reinforcing hoop is fixedly installed on the periphery of the reinforcement cage by the support rod, the outer longitudinal reinforcement is arranged circumferentially along the outer reinforcing hoop, and the steel wire mesh is wrapped around the outer side of the outer longitudinal reinforcement. This utility model has a simple overall structure, strong practicality, and can effectively control the filling coefficient during the concrete pouring process, greatly improve the pile formation quality of the cast-in-place pile and reduce construction costs, thus having good economic benefits. Based on the aforementioned existing technology, it can be concluded that the wire mesh needs to be wrapped around the outside of the rebar cage. When the wire mesh is wrapped during construction, if binding wire is used for fixing, the fixing is not firm enough. If welding is used for fixing, it is inconvenient to fix during construction and cannot make the wire mesh tightly adhere to the outside of the rebar cage. The fixing is not firm and is not flexible. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a steel wire mesh fixing structure for a steel cage, which solves the problems of inconvenience, inflexibility, and insecure fixing of the steel wire mesh after it is placed outside the steel cage.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a steel wire mesh fixing structure for a steel cage, comprising a fixed positioning hook and a square frame support. The fixed positioning hook is fixedly connected to the outer end of the square frame support. A sliding groove is provided on the inner surface of the square frame support. A movable locking hook head is slidably connected to the inner surface of the sliding groove of the square frame support. A bolt is provided on the inner surface of the square frame support. One outer surface of the bolt is threadedly connected to the inner surface of the movable locking hook head. The fixed positioning hook adopts a double-headed hook structure, and the movable locking hook head adopts a bent-angle double-headed hook structure.
[0005] Preferably, one side of the square frame support is provided with an insertion port, and the outer surface of the bolt slides through the inner surface of the insertion port of the square frame support.
[0006] Preferably, the outer surface of the tail end of the bolt is provided with a first annular positioning protrusion and a second annular positioning protrusion. The first annular positioning protrusion fits and supports the outer surface of the square frame support, and the second annular positioning protrusion fits and supports the inner surface of the groove of the square frame support.
[0007] Preferably, the outer surface of the movable locking hook slides against the inner surface of the groove of the square support seat.
[0008] Preferably, the inner surface of the movable locking hook is provided with a threaded hole, and the outer surface of the bolt stud is threadedly connected to the inner surface of the threaded hole of the movable locking hook.
[0009] Preferably, the outer end of the bolt is provided with a hexagonal boss, and a hexagonal groove is formed on the outer surface of the hexagonal boss.
[0010] Preferably, the fixed positioning hook and the movable locking hook are made of carbon steel.
[0011] Compared with the prior art, this utility model provides a steel wire mesh fixing structure for a steel cage, which has the following beneficial effects: By adopting a structure of fixed positioning hooks and movable locking hooks, after the wire mesh is wrapped around the rebar cage, multiple sets of fixed positioning hooks and movable locking hooks can be inserted at the joint. By twisting the bolts to rotate, the movable locking hooks can be moved and retracted, and can be hung on the outside of the wire mesh for compression and pulling to lock. The locking is firm and flexible, and the wire mesh is firmly and stably fixed when wrapped around the rebar cage. Attached Figure Description
[0012] Figure 1 This is the first schematic diagram of the overall structure; Figure 2 This is the second schematic diagram of the overall structure; Figure 3 This is a schematic diagram of the overall structure cross-section; Figure 4This is a first schematic diagram of a partial structure of the movable locking hook; Figure 5 This is a second schematic diagram of a partial structure of the movable locking hook.
[0013] In the diagram: 1. Fixed positioning hook, 2. Square support base, 3. Slide groove, 4. Moving locking hook head, 5. Bolt, 6. First annular positioning protrusion, 7. Second annular positioning protrusion, 40. Threaded hole. Detailed Implementation
[0014] 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.
[0015] This utility model provides a technical solution: a steel wire mesh fixing structure for a rebar cage, including a fixed positioning hook 1 and a square frame support 2. The fixed positioning hook 1 is fixedly connected to the outer end of the square frame support 2. A groove 3 is provided on the inner surface of the square frame support 2. A movable locking hook head 4 is slidably connected to the inner surface of the groove 3 of the square frame support 2. A bolt 5 is provided on the inner surface of the square frame support 2. One outer surface of the bolt 5 is threadedly connected to the inner surface of the movable locking hook head 4. The fixed positioning hook 1 adopts a double-headed hook structure, and the movable locking hook head 4 adopts a double-headed hook structure with an angle. By adopting the fixed positioning hook and movable locking hook head structure, after the steel wire mesh is wrapped around the rebar cage, multiple sets of fixed positioning hooks and movable locking hook heads can be inserted at the joint. By twisting the bolt to rotate, the movable locking hook head can be moved and retracted. It can be hung on the outside of the steel wire mesh for compression and pulling to lock. It can lock firmly and flexibly. The steel wire mesh is firmly and stably fixed when wrapped around the rebar cage. A through-hole is provided on one side of the square support base 2, and the outer surface of the bolt 5 slides through the inner surface of the through-hole of the square support base 2; the bolt 5 can be supported through the through-hole, and when the bolt 5 rotates, it can be supported and rotated on the inner side of the through-hole, which can be used for support and positioning. The outer surface of the tail end of the bolt 5 is provided with a first annular positioning protrusion 6 and a second annular positioning protrusion 7. The first annular positioning protrusion 6 fits and supports the outer surface of the square frame support 2, and the second annular positioning protrusion 7 fits and supports the inner surface of the slide groove 3 of the square frame support 2. When the bolt 5 rotates, it can position and support the rotation. Its first annular positioning protrusion 6 and second annular positioning protrusion 7 fit inside and outside the square frame support 2 for positioning. When rotating, it can position and support the rotation, and it is stable when rotating. The outer surface of the movable locking hook 4 slides against the inner surface of the groove 3 of the square support base 2; the movable locking hook 4 can be tightly fitted into the groove 3 of the square support base 2 for positioning, and can be slidably positioned and supported. When it slides, it can be positioned through the groove 3, fits tightly, and is stably supported when moving without shaking. The inner surface of the movable locking hook 4 is provided with a threaded hole 40, and the outer surface of the stud of the bolt 5 is connected to the inner surface of the threaded hole of the movable locking hook 4 by thread; this facilitates the installation of the bolt 5. The outer end of bolt 5 is provided with a hexagonal boss, and the outer surface of the hexagonal boss is provided with a hexagonal groove 50. When in use, when bolt 5 is turned, a wrench is inserted into the hexagonal boss for rotation, and an internal hexagonal wrench can be inserted into the hexagonal groove 50 for rotation, which can easily drive bolt 5 to rotate. It can be rotated and controlled, and the operation is convenient when rotating. The fixed positioning hook 1 and the movable locking hook head 4 are made of carbon steel. The main advantages of carbon steel are reflected in three core dimensions: good economy, excellent process performance, and wide range of adjustable performance. It has become the most widely used metal material in the industrial field. The production cost is low: carbon steel raw materials are easy to obtain, the smelting process is mature, and the price is only 40%-60% of that of alloy steel. The maintenance cost is low. Conventional surface treatment (such as galvanizing and painting) can meet most rust prevention requirements. There is no need for expensive anti-corrosion measures. It is low in cost, high in strength, and has a firm locking. The working principle of this device is as follows: When in use, the inner surface of the square support base 2 is provided with a groove 3, and the inner surface of the groove 3 of the square support base 2 is slidably connected with a movable locking hook head 4. The inner surface of the square support base 2 is provided with a bolt 5, and one outer surface of the bolt 5 is threadedly connected to the inner surface of the movable locking hook head 4. The fixed positioning hook 1 adopts a double-headed hook structure, and the movable locking hook head 4 adopts a bent double-headed hook structure. In use, the movable locking hook 4 and the fixed positioning hook 1 are hooked into the wire mesh for positioning. The outer surface of the tail end of the bolt 5 is provided with a first annular positioning protrusion 6 and a second annular positioning protrusion 7. The first annular positioning protrusion 6 fits and supports the outer surface of the square frame support 2, and the second annular positioning protrusion 7 fits and supports the inner surface of the sliding groove 3 of the square frame support 2. When the bolt 5 is rotated, the positioning support can rotate. The first annular positioning protrusion 6 and the second annular positioning protrusion 7 fit inside and outside the square frame support 2 for positioning. The positioning support can rotate during rotation and is stable during rotation. In use, the bolt 5 can be twisted to rotate, which can drive the bolt 5 to rotate inside the movable locking hook 4. It can also drive the movable locking hook 4 to retract and move, which can pull and lock the joint of the wire mesh for fixation. It can be locked firmly and wrapped around the outside of the reinforcing cage for fixation. The installation is flexible and convenient.
[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0017] 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 steel wire mesh fixing structure for a steel cage, comprising a fixing and positioning hook (1) and a square frame support (2), characterized in that: The outer end of the square support base (2) is fixedly connected to a fixed positioning hook (1). The inner surface of the square support base (2) is provided with a sliding groove (3). The inner surface of the sliding groove (3) of the square support base (2) is slidably connected to a movable locking hook head (4). The inner surface of the square support base (2) is provided with a bolt (5). The outer surface of one side of the bolt (5) is threadedly connected to the inner surface of the movable locking hook head (4). The fixed positioning hook (1) adopts a double-headed hook structure, and the movable locking hook head (4) adopts a bent-angle double-headed hook structure.
2. The steel wire mesh fixing structure for a reinforcing cage according to claim 1, characterized in that: The square support base (2) has an insertion port on one side, and the outer surface of the bolt (5) slides through the inner surface of the insertion port of the square support base (2).
3. The steel wire mesh fixing structure for a reinforcing cage according to claim 1, characterized in that: The outer surface of the tail end of the bolt (5) is provided with a first annular positioning protrusion (6) and a second annular positioning protrusion (7). The first annular positioning protrusion (6) fits and supports the outer surface of the square frame support base (2), and the second annular positioning protrusion (7) fits and supports the inner surface of the slide groove (3) of the square frame support base (2).
4. The steel wire mesh fixing structure for a reinforcing cage according to claim 1, characterized in that: The outer surface of the movable locking hook (4) slides against the inner surface of the groove (3) of the square support base (2).
5. The steel wire mesh fixing structure for a reinforcing cage according to claim 1, characterized in that: The inner surface of the movable locking hook (4) is provided with a threaded hole (40), and the outer surface of the stud of the bolt (5) is connected to the inner surface of the threaded hole of the movable locking hook (4) by thread.
6. The steel wire mesh fixing structure for a reinforcing cage according to claim 1, characterized in that: The outer end of the bolt (5) is provided with a hexagonal boss, and a hexagonal groove (50) is provided on the outer surface of the hexagonal boss.
7. The steel wire mesh fixing structure for a reinforcing cage according to claim 1, characterized in that: The fixed positioning hook (1) and the movable locking hook (4) are made of carbon steel.