A connecting structure of a diaphragm wall

Abstract

This utility model belongs to the field of diaphragm wall technology, specifically relating to a connection structure for diaphragm walls, including a precast wall body one and a precast wall body two. Both precast wall body one and precast wall body two have embedded reinforcing bars, and the ends of the reinforcing bars are threaded externally. The precast wall body one and precast wall body two are connected by a connection mechanism. This connection structure for diaphragm walls, through the synergistic action of a connecting frame, a fixing sleeve, a toothed sleeve one, a sleeve body, a toothed sleeve two, and related components, ensures that during the locking process of the sleeve body, the toothed sleeve two applies a force to the toothed sleeve one, keeping the toothed sleeve one engaged with the toothed sleeve two under the spring force. Ultimately, the toothed sleeve one is limited, thereby restricting the toothed sleeve two, effectively preventing the sleeve body from loosening, and greatly improving the stability of the precast wall connection. Simultaneously, through the design of splicing the precast walls, the precast walls can be divided into multiple modules, effectively improving the convenience of transporting the precast walls and reducing transportation difficulty and costs.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm wall technology, specifically to a connection structure for diaphragm walls. Background Technology

[0002] Diaphragm walls are an advanced technology for deep foundation pit support and underground structure construction. By constructing a continuous reinforced concrete wall underground, it plays multiple roles such as soil retention, water prevention, and load-bearing.

[0003] Currently, most existing precast walls adopt a monolithic design, unlike newer precast walls which can be assembled into multiple modules. This results in larger volumes and heavier precast walls, requiring large transport equipment and demanding stricter route requirements, increasing transportation difficulty and costs. Furthermore, the large size of monolithic precast walls makes loading and unloading difficult due to space constraints, and may cause damage due to collisions, affecting the quality and performance of the precast walls. Therefore, we propose a connection structure for underground continuous walls. Utility Model Content

[0004] The main objective of this invention is to provide a connection structure for underground continuous walls that can solve the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model proposes a connection structure for a diaphragm wall, comprising a precast wall body one and a precast wall body two. Both precast wall body one and precast wall body two contain embedded reinforcing bars, the ends of which are externally threaded. The precast wall body one and precast wall body two are connected by a connection mechanism, which includes:

[0006] Connecting frame, wherein the connecting frame is provided with a plug-in interface;

[0007] A fixing sleeve is fixedly connected to the outer wall of the connecting frame, and a toothed sleeve is provided on the fixing sleeve;

[0008] The sleeve has an internal thread and a toothed sleeve at the bottom.

[0009] Preferably, the sleeve body is rotatably connected to a rotating sleeve, the rotating sleeve has a through groove, and the outer wall of the rotating sleeve has an arrow two.

[0010] Preferably, the sleeve penetrates the hexagonal sleeve and is fixedly connected to the hexagonal sleeve, and the hexagonal sleeve is slidably connected to an elastic block.

[0011] Preferably, a guide rod is fixedly connected to the outer wall of the toothed sleeve, and the guide rod passes through the hexagonal sleeve and is slidably connected to the hexagonal sleeve.

[0012] Preferably, the outer wall of the sleeve is provided with an arrow.

[0013] Preferably, a protrusion is fixedly connected to the outer wall of the toothed sleeve, and the toothed sleeve is elastically connected to the outer wall of the connecting frame by a spring.

[0014] Preferably, the inner wall of the fixing sleeve has an inner groove, and the inner groove is slidably connected to the protrusion.

[0015] This utility model provides a connection structure for underground continuous walls. It has the following beneficial effects:

[0016] (1) The connection structure of the underground continuous wall, through the coordinated action of the connecting frame, fixing sleeve, toothed sleeve one, sleeve body, toothed sleeve two and related components, during the locking process of the sleeve body, toothed sleeve two applies force to toothed sleeve one, so that toothed sleeve one and toothed sleeve two always remain engaged under the spring force, and finally toothed sleeve one is limited, thereby restricting toothed sleeve two, effectively preventing the sleeve body from loosening, greatly improving the stability of the connection between precast wall body one and precast wall body two, ensuring the overall structure of the underground continuous wall is stable and reliable. At the same time, through the design of precast wall splicing, the precast wall can be divided into multiple modules, which effectively improves the convenience of precast wall transportation and reduces transportation difficulty and cost.

[0017] (2) When the connection structure of the underground continuous wall needs to be disassembled, simply rotate the rotating sleeve until arrow 2 coincides with arrow 1 and the through groove coincides with the top of the guide rod. Release the limit of the toothed sleeve 2, rotate the rotating sleeve in the opposite direction, and the toothed sleeve 1 squeezes the toothed sleeve 2 to make it move upward, so that the sleeve can be disassembled. The operation process is simple and convenient, which improves the construction efficiency and facilitates the disassembly of components of the underground continuous wall in subsequent maintenance or renovation work. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the connecting frame of this utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the fixing sleeve of this utility model;

[0022] Figure 4 This is a partial three-dimensional structural diagram of the present utility model;

[0023] Figure 5 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the hexagonal sleeve of this utility model;

[0025] Figure 7 This utility model Figure 1 Schematic diagram of the locking state of A.

[0026] Explanation of icon numbers:

[0027] 1. Precast wall unit one; 2. Precast wall unit two; 31. Connecting frame; 32. Fixing sleeve; 321. Inner groove; 322. Toothed sleeve one; 323. Protrusion; 33. Sleeve body; 331. Arrow one; 34. Rotating sleeve; 341. Arrow two; 342. Through groove; 35. Hexagonal sleeve; 351. Elastic block; 36. Toothed sleeve two; 361. Guide rod; 4. Reinforcing bar; 41. External thread.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. 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 1-7 This utility model proposes a connection structure for underground continuous walls, including prefabricated wall body 1 and prefabricated wall body 2. By dividing the overall prefabricated wall into multiple modules and then splicing them on site, the convenience of transporting the prefabricated wall can be effectively improved, and the transportation difficulty and cost can be reduced. Both prefabricated wall body 1 and prefabricated wall body 2 are pre-embedded with steel bars 4, and the ends of the steel bars 4 are provided with external threads 41. The prefabricated wall body 1 and prefabricated wall body 2 are connected by a connection mechanism.

[0031] In the embodiments of this utility model, in order to splice the precast wall 1 and the precast wall 2, the connection mechanism specifically includes a connecting frame 31, the connecting frame 31 having an insertion interface, a fixing sleeve 32 fixedly connected to the outer wall of the connecting frame 31, an inner groove 321 on the inner wall of the fixing sleeve 32, the inner groove 321 being slidably connected to the protrusion 323, a toothed sleeve 322 on the fixing sleeve 32, a protrusion 323 fixedly connected to the outer wall of the toothed sleeve 322, the toothed sleeve 322 being elastically connected to the outer wall of the connecting frame 31 by a spring, an internal thread on the sleeve body 33, an arrow 331 on the outer wall of the sleeve body 33, and a toothed sleeve 36 below the sleeve body 33;

[0032] Furthermore, the sleeve 33 is rotatably connected to the rotating sleeve 34, the rotating sleeve 34 has a through groove 342, the outer wall of the rotating sleeve 34 has an arrow 341, the sleeve 33 passes through the hexagonal sleeve 35 and is fixedly connected to the hexagonal sleeve 35, the hexagonal sleeve 35 is slidably connected to the elastic block 351, the outer wall of the toothed sleeve 36 is fixedly connected to the guide rod 361, the guide rod 361 passes through the hexagonal sleeve 35 and is slidably connected to the hexagonal sleeve 35;

[0033] In this utility model, during use, a crane is first used to place the connecting frame 31 on the upper end of the precast wall 1, and the reinforcing bar 4 passes through the fixing sleeve 32. Then, the sleeve body 33 is installed on the end of the reinforcing bar 4, so that the toothed sleeve 1 322 and the toothed sleeve 2 36 mesh. Then, the sleeve body 33 is turned, so that the sleeve body 33 drives the toothed sleeve 2 36 to rotate while moving downwards. Figure 5 As shown, during the downward movement of the second gear sleeve 36, the guide rod 361 is in a limited position. When the second gear sleeve 36 rotates, its inclined surface presses against the inclined surface of the first gear sleeve 322, causing the first gear sleeve 322 to move downward. Simultaneously, the spring undergoes elastic deformation. Subsequently, under the spring's elastic force, the first gear sleeve 322 and the second gear sleeve 36 remain engaged. When the second gear sleeve 36 moves downward, it applies a force to the first gear sleeve 322, causing it to move downward. Simultaneously, the spring undergoes elastic deformation. When the sleeve body 33 is locked, the outer wall of the first gear sleeve 322 coincides with the outer wall of the fixed sleeve 32, as shown... Figure 7 As shown, since the first toothed sleeve 322 is limited, the second toothed sleeve 36 is also in a limited state. Through this design, the sleeve 33 can be limited to prevent the sleeve 33 from loosening, thereby improving the stability of the connection. At the same time, through the design of prefabricated wall splicing, the prefabricated wall can be divided into multiple modules, which can improve the convenience of prefabricated wall transportation and reduce transportation difficulty and cost.

[0034] When disassembly is required, simply rotate the rotating sleeve 34. During this process, the through groove 342 will compress the elastic block 351, causing the elastic block 351 to fully enter the hexagonal sleeve 35. When arrow 2 341 coincides with arrow 1 331, the through groove 342 will coincide with the top of the guide rod 361. At this time, the limit of the toothed sleeve 2 36 is released. When the rotating sleeve 34 rotates in the opposite direction, the toothed sleeve 1 322 will compress the toothed sleeve 2 36, causing the toothed sleeve 2 36 to move upward, thereby enabling the disassembly of the sleeve 33.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A connecting structure of a diaphragm wall comprising a first precast wall body (1) and a second precast wall body (2), characterized in that: Both the first precast wall (1) and the second precast wall (2) are pre-embedded with reinforcing bars (4), and the ends of the reinforcing bars (4) are provided with external threads (41). The first precast wall (1) and the second precast wall (2) are connected by a connecting mechanism, which includes: A connecting frame (31) is provided with an insertion interface; A fixing sleeve (32) is fixedly connected to the outer wall of the connecting frame (31), and a toothed sleeve (322) is provided on the fixing sleeve (32); The sleeve (33) has an internal thread and a toothed sleeve (36) is provided below the sleeve (33).

2. The connecting structure of a diaphragm wall according to claim 1, wherein: The sleeve (33) is rotatably connected to a rotating sleeve (34), the rotating sleeve (34) has a through groove (342), and the outer wall of the rotating sleeve (34) has an arrow (341).

3. The connecting structure of a diaphragm wall according to claim 1, wherein: The sleeve (33) passes through the hexagonal sleeve (35) and is fixedly connected to the hexagonal sleeve (35), and the hexagonal sleeve (35) is slidably connected to an elastic block (351).

4. The connecting structure of a diaphragm wall according to claim 3, wherein: A guide rod (361) is fixedly connected to the outer wall of the toothed sleeve (36). The guide rod (361) passes through the hexagonal sleeve (35) and is slidably connected to the hexagonal sleeve (35).

5. The connecting structure of a diaphragm wall according to claim 1, wherein: The outer wall of the sleeve (33) is provided with an arrow (331).

6. The connection structure of a diaphragm wall according to claim 1, characterized in that: The outer wall of the toothed sleeve (322) is fixedly connected to a protrusion (323), and the toothed sleeve (322) is elastically connected to the outer wall of the connecting frame (31) by a spring.

7. The connecting structure of a diaphragm wall according to claim 6, wherein: The inner wall of the fixed sleeve (32) is provided with an inner groove (321), and the inner groove (321) is slidably connected to the protrusion (323).

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