Concrete assembly type lock joint structure

Abstract

The utility model relates to geological engineering technical field, concretely is a kind of concrete assembly type lock mouth structure, it includes: plug-in seat, connecting cylinder, base plate, casing and reinforcing assembly, socket inserts the side wall of foundation pit, and opening in the center of plug-in seat is equipped with connecting groove one, connecting cylinder is inserted in connecting groove one, and it is equipped with butt flange on connecting cylinder, base plate is equipped with through slot in the center, and connecting groove two is equipped with in the side wall of through slot and butt flange cooperation, the upper butt joint groove of casing is equipped with and the lower butt joint groove of base plate edge cooperation, make casing and base plate connect, by the setting of plug-in seat, strengthen the contact of lock mouth structure and foundation pit, improve the strength of connection, by the setting of reinforcing assembly, improve the connecting strength between plug-in seat, connecting cylinder, base plate and casing, reduce the probability that lock mouth structure is also destroyed when the collapse of foundation pit port appears.

Description

Technical Field

[0001] This utility model relates to the field of geological engineering technology, specifically a prefabricated concrete interlocking structure. Background Technology

[0002] Concrete interlocking structures are key reinforced concrete components used in civil engineering to enhance the stability of wellheads, pile foundations, or the top of foundation pits. They are mainly used in engineering applications such as vertical shafts, surge tanks, pile foundations, and foundation pit support. Their core functions are to prevent wellhead collapse, restrain well wall deformation, and improve the overall load-bearing capacity and safety of the structure.

[0003] The CN215715366U publication discloses a stepped segmented foundation pit support structure, including an end retaining wall set at the edge of the foundation pit opening, and multiple layers of side retaining walls set below the end retaining walls and laid along the side walls of the foundation pit from top to bottom. The side retaining walls are generally inverted right trapezoids, wider at the top and narrower at the bottom. This invention utilizes a "7"-shaped end retaining wall to enclose the foundation pit opening, stabilizing the soil at the opening and preventing collapse. The inverted trapezoidal cross-section of the side retaining walls further supports the soil on the sides of the foundation pit, reducing the probability of soil collapse. Furthermore, adjacent layers of side retaining walls are connected by wedge grooves, making adjacent layers of side retaining walls and the side retaining walls and end retaining walls a unified whole.

[0004] However, when the aforementioned stepped segmented foundation pit support structure is used, its locking structure, that is, the end retaining wall is fixed by the support of the bottom retaining wall and by setting it to hang at the end of the foundation pit in a figure-7 shape, is not stable enough. When the end collapses, it is easy to collapse together. Utility Model Content

[0005] The purpose of this utility model is to provide a prefabricated concrete locking structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A precast concrete interlocking structure, wherein the interlocking structure is disposed at the opening of the foundation pit, comprising:

[0008] A plug-in connector is inserted into the side wall of the pit, and a connecting groove is provided at the opening in the center of the plug-in connector;

[0009] A connecting cylinder is inserted into the connecting groove, and a mating flange is provided on the connecting cylinder;

[0010] The substrate has a through groove at its center and a connecting groove on the side wall of the through groove that engages with the mating flange.

[0011] A protective sleeve, wherein an upper mating groove on the protective sleeve mates with a lower mating groove on the edge of the substrate, thereby connecting the protective sleeve and the substrate.

[0012] A reinforcement component, one end of which is inserted into the ground and the other end is connected to the insertion socket, connecting cylinder, base plate and protective sleeve.

[0013] Preferably, the reinforcement assembly includes a connecting mechanism that connects the plug-in socket, the connecting cylinder, the base plate, and the protective cylinder, and a fixing mechanism that is inserted into the ground and connected to the connecting mechanism.

[0014] Preferably, the connecting mechanism includes a rod inserted into the plug seat, the connecting cylinder and the base plate respectively, a through cylinder disposed in the protective cylinder, a reinforcing block sleeved on the rod, a fastening bolt disposed on the rod, and a series steel cable connecting the reinforcing block.

[0015] Preferably, the fixing mechanism includes a fixing steel cable disposed on the reinforcing block and passing through the through-tube, an anchor block disposed on the fixing steel cable, and reinforcing concrete poured into the ground to wrap the ends of the fixing steel cable and the anchor block.

[0016] Preferably, the fastening bolt and the threaded engagement at the end of the insertion rod are used to fix the reinforcing block. Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention strengthens the connection between the locking structure and the foundation pit by setting up a plug-in socket, thereby improving the connection strength. By setting up reinforcement components, the connection strength between the plug-in socket, connecting cylinder, base plate, and protective cylinder is improved, reducing the probability that the locking structure will also be damaged when the foundation pit port collapses. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the assembled structure of Embodiment 1 of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of Embodiment 1 of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the plug-in socket of this utility model;

[0021] Figure 4 This is a schematic diagram of the connecting cylinder of this utility model;

[0022] Figure 5 This is a cross-sectional view of the substrate of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the protective sleeve of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0025] Figure 8 This is a cross-sectional view of Embodiment 2 of the present invention;

[0026] Figure 9 This is a schematic diagram of the structure of Embodiment 2 of this utility model after concealing a set of series steel cables and fixed steel cables;

[0027] Figure 10 This is a schematic diagram of the structure of the series steel cable and the fixed steel cable of this utility model.

[0028] In the diagram: 1. Plug-in socket; 2. Connecting groove one; 3. Connecting cylinder; 4. Butt flange; 5. Base plate; 6. Through groove; 7. Connecting groove two; 8. Protective sleeve; 9. Upper butt groove; 10. Lower butt groove; 11. Insert rod; 12. Through cylinder; 13. Reinforcing block; 14. Fastening bolt; 15. Series steel cable; 16. Fixing steel cable; 17. Anchor block; 18. Reinforcing concrete. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1 to 10 This utility model provides a technical solution:

[0031] Example 1: A precast concrete interlocking structure, wherein the interlocking structure is installed at the opening of the foundation pit, comprising:

[0032] The plug-in socket 1 is inserted into the side wall of the foundation pit. The plug-in socket 1 can be set on the protective wall inside the foundation pit. The plug-in socket 1 has a connecting groove 2. A circular opening is provided at the center of the plug-in socket 1. The connecting groove 2 is opened on the side wall of this circular opening.

[0033] The connecting cylinder 3 is inserted into the connecting groove 2. The connecting cylinder 3 has a mating flange 4, which is fixedly connected to the connecting cylinder 3 by means of integral molding or other methods.

[0034] The substrate 5 has a through groove 6 at its center and a connecting groove 7 on the side wall of the through groove 6 to cooperate with the mating flange 4, so that the mating flange 4 is inserted into the connecting groove 7. The substrate 5 also has a lower mating groove 10 at its edge.

[0035] The protective casing 8 has an upper mating groove 9 that matches the lower mating groove 10 on the edge of the base plate 5, connecting the protective casing 8 and the base plate 5. The protective casing 8 is raised above the ground to block water and maintain the stability of the pit opening, while also preventing soil, stones, and debris from falling into the pit and affecting the quality of the foundation. The plug-in seat 1, connecting cylinder 3, base plate 5, and protective casing 8 are all formed by concrete pouring. The corresponding mold is set on the wall of the pit, and the plug-in seat 1 is poured into shape. Then, the next mold is set on the plug-in seat 1, and the connecting cylinder 3 is poured into shape. Then, the next mold is set on the connecting cylinder 3, and the base plate 5 is poured into shape. Finally, the next mold is set on the base plate 5, and the protective casing 8 is poured into shape.

[0036] Example 2: The only difference between Example 2 and Example 1 is that Example 2 also includes a reinforcement component. One end of the reinforcement component is inserted into the ground, and the other end is connected to the insertion socket 1, the connecting cylinder 3, the base plate 5, and the protective cylinder 8.

[0037] The reinforcement assembly includes a connecting mechanism for connecting the plug-in base 1, connecting cylinder 3, base plate 5, and protective sleeve 8, and a fixing mechanism inserted into the ground and connected to the connecting mechanism. The connecting mechanism includes a plug rod 11, a through-tube 12, a reinforcing block 13, a fastening bolt 14, and a series steel cable 15. The plug rod 11 is inserted into the plug-in base 1, connecting cylinder 3, and base plate 5 respectively. The plug rod 11 can be set in the mold. When casting the plug-in base 1, connecting cylinder 3, and base plate 5, the plug rod 11 is fixed in the plug-in base 1, connecting cylinder 3, and base plate 5 respectively. The end of the plug rod 11 is threaded. The through-tube 12 is set in the mold. In the casing 8, the height of the through-tube 12 can be reasonably selected according to the actual use. The through-tube 12 can be set in the mold. After the casing 8 is poured, the through-tube 12 and the mold are fixedly connected. The reinforcing block 13 is sleeved on the insert rod 11. The fastening bolt 14 is set on the insert rod 11. The fastening bolt 14 is fixedly connected to the insert rod 11 by means of threaded connection, etc. The fastening bolt 14 is used to fix the reinforcing block 13. The series steel cable 15 is used to connect the reinforcing block 13 in series. The two ends of the series steel cable 15 are fixedly connected to the two reinforcing blocks 13 respectively by welding, etc.

[0038] The fixing mechanism includes a fixing steel cable 16, an anchor block 17, and reinforcing concrete 18. The fixing steel cable 16 is set on the reinforcing block 13 and passes through the through-tube 12. The fixing steel cable 16 is fixedly connected to the reinforcing block 13 by welding or other means. The anchor block 17 is set on the fixing steel cable 16 and is fixedly connected to the end of the fixing steel cable 16 by welding or other means. The reinforcing concrete 18 is poured into the ground to wrap the end of the fixing steel cable 16 and the anchor block 17, and the reinforcing concrete 18 fixes the anchor block 17 and the fixing steel cable 16.

[0039] Working principle: The corresponding mold is set on the retaining wall in the foundation pit, the plug-in seat 11 is cast and formed, then the next mold is set on the plug-in seat 1, the connecting cylinder 3 is cast and formed, then the next mold is set on the connecting cylinder 3, the base plate 5 is cast and formed, finally the next mold is set on the base plate 5, the protective cylinder 8 is cast and formed, each reinforcing block 13 is fitted on the plug rod 11, and the fastening bolt 14 is tightened on the plug rod 11, the fixing steel cable 16 is passed through the through cylinder 12, the anchor block 17 is welded to the end of the fixing steel cable 16, a hole is made in the ground, the end of the fixing steel cable 16 is put into the hole, and then the reinforcing concrete 18 is poured.

[0040] 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 precast concrete interlocking structure, wherein the interlocking structure is disposed at the opening of a foundation pit, characterized in that, include: A plug-in connector is inserted into the side wall of the pit, and a connecting groove is provided at the opening in the center of the plug-in connector; A connecting cylinder is inserted into the connecting groove, and a mating flange is provided on the connecting cylinder; The substrate has a through groove at its center and a connecting groove on the side wall of the through groove that engages with the mating flange. A protective sleeve, wherein an upper mating groove on the protective sleeve mates with a lower mating groove on the edge of the substrate, thereby connecting the protective sleeve and the substrate. A reinforcement component, one end of which is inserted into the ground and the other end is connected to the insertion socket, connecting cylinder, base plate and protective sleeve.

2. The precast concrete interlocking structure according to claim 1, characterized in that: The reinforcement assembly includes a connecting mechanism that connects the plug-in socket, the connecting cylinder, the base plate, and the protective cylinder, and a fixing mechanism that is inserted into the ground and connected to the connecting mechanism.

3. The precast concrete interlocking structure according to claim 2, characterized in that: The connecting mechanism includes a rod inserted into the plug socket, the connecting cylinder and the base plate respectively, a through cylinder set in the protective cylinder, a reinforcing block sleeved on the rod, a fastening bolt set on the rod, and a series steel cable connecting the reinforcing block.

4. The precast concrete interlocking structure according to claim 3, characterized in that: The fixing mechanism includes a fixing steel cable set on the reinforcing block and passing through the through-tube, an anchor block set on the fixing steel cable, and reinforcing concrete poured into the ground to wrap the ends of the fixing steel cable and the anchor block.

5. A precast concrete interlocking structure according to claim 4, characterized in that: The fastening bolt and the threaded engagement at the end of the insertion rod are used to fix the reinforcing block.

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