An assembled retaining wall for loess areas

Abstract

This utility model discloses a prefabricated retaining wall for loess areas, relating to the field of building construction technology. It includes a fixing plate and vertically arranged fixing rods detachably connected to both sides of the fixing plate along its length. Both the fixing plate and the fixing rods have mounting grooves at both ends along their length, with the mounting grooves on both sides staggered. Each mounting groove passes through the fixing rod in one direction, and a limiting mechanism is fitted within the mounting groove. The limiting mechanism includes a semi-circular fixing disc that rotates vertically within the mounting groove. A fan-shaped annular external toothed ring is fixed to its outer arc wall, and a horizontal rack engages with the outer side of the fan-shaped annular external toothed ring. In this utility model, the fixing plate and fixing rods can be quickly disassembled and assembled using the limiting mechanism, forming a mortise-and-tenon-like structure that resists shearing and pull-out forces, ensuring reliable connection. Furthermore, the disassembled, modular structure facilitates transportation and allows for rapid installation and deployment during disaster relief, reducing the construction period.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a prefabricated retaining wall for use in loess areas. Background Technology

[0002] Retaining walls are structures used to support and stabilize soil, preventing it from collapsing or sliding. They are widely used in engineering fields such as highways, railways, water conservancy, and construction. Their core function is to resist earth pressure and ensure the safety and stability of the engineering structure and the surrounding environment. Depending on the structural form and construction method, retaining walls can be divided into various types such as gravity type, cantilever type, buttress type, and anchored type. In loess areas, because loess is loose and prone to wet collapse deformation, retaining walls are needed to reduce loess subsidence.

[0003] In temporary engineering scenarios such as temporary support at construction sites, if a road is closed due to a landslide, it is necessary to install temporary retaining walls in advance before clearing the road, and finally dismantle the temporary support and construct a permanent support structure according to the specific situation. Traditional retaining walls need to be poured or masonry on site, which has a long construction period. Fixed retaining walls also require pre-design of the structure according to the terrain, which further leads to a long construction period. Existing prefabricated retaining walls are themselves large in size and inconvenient to transport.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The purpose of this invention is to provide a prefabricated retaining wall for use in loess areas, in order to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a prefabricated retaining wall for loess areas, including a fixing plate and vertically arranged fixing rods detachably connected to both sides of the fixing plate along its length. The fixing plate and fixing rods each have mounting grooves at both ends along their length, and the mounting grooves on both sides are staggered. Each mounting groove passes through the fixing rod in one direction, and a limiting mechanism is fitted inside the mounting groove. The limiting mechanism includes:

[0007] A semi-circular fixed plate rotates vertically in the mounting groove. A fan-shaped outer toothed ring is fixed on its outer arc wall. A horizontal rack is engaged on the outer side of the fan-shaped outer toothed ring. The rack slides on the inner wall of the mounting groove. A fixed column is vertically fixed on the outer edge of the side wall of the semi-circular fixed plate near the opening of the mounting groove. A locking block is fixed at the center of this side wall.

[0008] The limiting post is fixed on the side wall of the semi-circular fixing plate away from the locking block. A slide rail spring is sleeved on the outside of the limiting post, and another limiting post with the same structure is sleeved on the other end of the slide rail spring. The limiting post is fixed on the inner wall of the mounting groove and does not contact the rack rod.

[0009] Furthermore, a horizontal rotating plate is rotatably connected to the bottom of the fixed rod near the opening of the mounting groove. The length direction of the rotating plate is consistent with the width direction of the fixed plate. A limiting part is provided at the top of the rotating plate, and multiple equally spaced locking teeth are fixed in the limiting part. A sliding groove is vertically provided on the side wall of the fixed rod near the rotating plate. A slider slides in the sliding groove. A damping rod is rotatably provided on the side wall of the slider away from the fixed rod. A limiting block is rotatably provided at the end of the damping rod away from the slider. The limiting block is inserted into the limiting part. When the slider slides to the top of the sliding groove, the limiting block can be placed at the bottom of the sliding groove. At this time, the damping rod is in a vertical state.

[0010] Furthermore, a groove is provided at the center of the side wall away from the semi-circular fixed plate of the locking block. When the two locking blocks abut against each other, the groove can be spliced ​​into a complete limiting groove. The vertical plane section of the limiting groove along the radial direction of the semi-circular fixed plate is a regular polygon. The mounting grooves on the side wall of the fixing plate and the fixing rod that are close to each other correspond one-to-one. In the drive mechanism inside, the semi-circular fixed plates on both sides can be spliced ​​into a complete cylinder after abutting against each other. The fan-shaped external toothed rings on both sides can be spliced ​​into a complete external toothed ring after abutting against each other. The side wall of the fixing plate corresponding to the opening of the mounting groove is provided with reinforcing ribs.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The limiting mechanism allows for quick assembly and disassembly of the fixing plate and fixing rod, forming a "mortise and tenon" structure that resists shearing and pull-out forces, ensuring reliable connection. The disassembled split structure is also easier to transport, allowing for rapid installation and deployment during disaster relief, thus reducing the construction cycle.

[0013] 2. The tilt angle of the damping rod can be changed by moving the slider up and down in the sliding groove, thereby changing the support force. The limiting part on the rotating plate is equipped with multiple locking teeth, which can be inserted into the limiting block at different positions to realize the graded adjustment of the support force and meet diverse needs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a prefabricated retaining wall used in the Loess Plateau region from a rear view.

[0015] Figure 2 This is a schematic diagram of a fixed column in a prefabricated retaining wall used in loess areas.

[0016] Figure 3 A schematic diagram of a limiting mechanism in a prefabricated retaining wall used in loess regions. Figure 1 ;

[0017] Figure 4 A schematic diagram of a limiting mechanism in a prefabricated retaining wall used in loess regions. Figure 2 ;

[0018] Figure 5 This is a schematic diagram of the overall structure of a prefabricated retaining wall used in loess areas from the front view.

[0019] In the picture:

[0020] 10. Fixed plate; 11. Fixed rod; 12. Rotating plate; 121. Limiting part; 13. Sliding block;

[0021] 131. Damping rod; 132. Limiting block;

[0022] 20. Locking block; 21. Semi-circular fixing disc; 22. Fixing post; 23. Sector-shaped external toothed ring;

[0023] 24. Rack and pinion; 25. Limiting pin; 26. Slide rail spring. Detailed Implementation

[0024] 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.

[0025] Please see the appendix Figure 1 To be continued Figure 5 This utility model provides a prefabricated retaining wall for loess areas: it includes a fixing plate 10 and vertically arranged fixing rods 11 detachably connected to both sides of the fixing plate 10 along its length. The fixing plate 10 and the fixing rods 11 each have mounting grooves at both ends along their length, and the mounting grooves on both sides are staggered. Each mounting groove passes through the fixing rod 11 in one direction, and a limiting mechanism is fitted inside the mounting groove. The limiting mechanism includes:

[0026] A semi-circular fixed plate 21 rotates vertically in the mounting groove. A fan-shaped annular toothed ring 23 is fixed on its outer arc wall. A horizontal rack rod 24 meshes with the outer side of the fan-shaped annular toothed ring 23. The rack rod 24 slides on the inner wall of the mounting groove. A fixed post 22 is vertically fixed on the outer edge of the side wall of the semi-circular fixed plate 21 near the opening of the mounting groove. A locking block 20 is fixed at the center of the side wall.

[0027] The limiting post 25 is fixed on the side wall of the semi-circular fixing plate 21 away from the locking block 20. A slide rail spring 26 is sleeved on the outside of the limiting post 25. Another limiting post 25 with the same structure is sleeved on the other end of the slide rail spring 26. The limiting post 25 is fixed on the inner wall of the mounting groove and does not contact the rack rod 24.

[0028] A horizontal rotating plate 12 is rotatably connected to the bottom of the fixed rod 11 near the opening of the mounting groove. The length direction of the rotating plate 12 is consistent with the width direction of the fixed plate 10. A limiting part 121 is provided on the top of the rotating plate 12. Multiple equally spaced locking teeth are fixed in the limiting part 121.

[0029] A sliding groove is vertically formed on the side wall of the fixed rod 11 near the rotating plate 12. A slider 13 slides in the sliding groove. A damping rod 131 rotates on the side wall of the slider 13 away from the fixed rod 11. A limiting block 132 rotates at the end of the damping rod 131 away from the slider 13. The limiting block 132 is inserted and engaged with the limiting part 121. When the slider 13 slides to the top of the sliding groove, the limiting block 132 can be placed at the bottom of the sliding groove. At this time, the damping rod 131 is in a vertical state.

[0030] It should be noted that, taking the mounting groove on the fixed plate 10 as an example, the mounting groove is a structure in which multiple cylindrical grooves are connected in stages along the axial direction. It penetrates the side of the fixed plate 10 near the rotating plate 12 in one direction along the axial direction. At the same time, the mounting groove is set through the end side wall of the fixed plate 10. In addition, the rotating plate 12 can rotate relative to the fixed rod 11, which makes it easier to fold up and transport, or to put down and find a suitable support point according to the terrain.

[0031] The mounting slots include: a first rotating slot on the side wall of the fixed plate 10 near the rotating plate 12; a locking block 20 rotatably disposed in the first rotating slot; a second rotating slot on the side of the first rotating slot away from the rotating plate 12; a semi-circular fixed plate 21 and a fan-shaped annular toothed ring 23 rotatably disposed in the second rotating slot; an annular third rotating slot on the outer edge of the second rotating slot near the first rotating slot; and a fixed column 22 rotatably connected to the third rotating slot. The first rotating slot, the second rotating slot, and the third rotating slot are sequentially connected, but the first rotating slot is not directly connected to the third rotating slot.

[0032] A storage slot is provided on the side of the rotating slot 2 away from the rotating slot 1. The limiting post 25 and the slide rail spring 26 are both set in the storage slot. The top and bottom of the rotating slot 2 are provided with grooves. The length direction of the groove is consistent with the length direction of the fixed plate 10. The rack rod 24 slides in the groove.

[0033] The limiting mechanism and its components are all in a horizontal state, that is, the axial extension direction of the semi-circular fixed plate 21 is horizontal and consistent with the width direction of the fixed plate 10. When two adjacent limiting mechanisms abut against each other, they rotate clockwise. The fixed column 22 on one side rotates into the rotating groove on the other side, and the rack rod 24 on one side slides into the groove on the other side, changing from a vertical distribution state to a horizontal distribution state, thereby connecting and fixing the fixed plate 10 and the fixed rod 11.

[0034] Please see the appendix Figure 1 To be continued Figure 5The present invention provides a technical solution: a groove is provided at the center of the side wall of the locking block 20 away from the semi-circular fixed plate 21. When two locking blocks 20 abut against each other, the groove can be spliced ​​into a complete limiting groove. The vertical plane section of the limiting groove along the radial direction of the semi-circular fixed plate 21 is a regular polygon.

[0035] The mounting slots on the side wall of the fixing plate 10 and the fixing rod 11 that are close to each other correspond one-to-one. The semi-circular fixing discs 21 on both sides of the drive mechanism can be spliced ​​into a complete cylinder after they abut against each other. The fan-shaped external toothed rings 23 on both sides can be spliced ​​into a complete external toothed ring after they abut against each other. The side wall of the fixing plate 10 corresponding to the opening of the mounting slot is provided with reinforcing ribs.

[0036] It should be noted that the limiting groove formed by the two locking blocks 20 after they abut each other is easy to rotate and install using tools. In one possible embodiment, the limiting groove has a regular hexagonal cross section, and can be rotated and installed using a hexagonal screwdriver of the corresponding size. Rotation is prevented under the action of the slide rail spring 26.

[0037] After finding or properly positioning the support points, the rotating plate 12 is horizontally unfolded and placed against the ground. The angle of the rotating plate 12 is adjusted so that the teeth of the limiting part 121 face upwards, serving as the initial support point for the fixed plate 10. The support force of the damping rod 131 is then adjusted by adjusting the engagement position between the limiting block 132 and the limiting part 121. Furthermore, anchor points can be added to the rotating plate 12 for installing positioning anchors to enhance the support capacity.

[0038] Working principle:

[0039] First, place the fixing rod 11 in the predetermined position, and then unfold the rotating plate 12 horizontally to touch the ground. Adjust its angle so that the teeth of the limiting part 121 face upwards as the initial support point. Align the mounting grooves on both sides of the fixing plate 10 with the mounting grooves of the fixing rod 11. The two semi-circular fixing plates 21 abut and splice to form a complete cylinder. Rotate clockwise, and the fixing column 22 on one side will rotate into the rotating groove on the other side. The rack rod 24 on one side will slide into the groove on the other side to achieve connection and fixation.

[0040] The slide rail spring 26 prevents rotation and slides in the sliding groove through the slider 13, driving the damping rod 131 and the limit block 132. Adjusting the engagement position of the limit block 132 and the limit part 121 changes the support force of the damping rod 131. After the two locking blocks 20 abut, use a tool (such as a hex screwdriver) to insert into the spliced ​​regular polygonal limit groove for rotation and installation.

Claims

1. A prefabricated retaining wall for loess areas, comprising a fixing plate (10) and vertically arranged fixing rods (11) detachably connected to both sides of its length, characterized in that: The fixing plate (10) and the fixing rod (11) are each provided with a mounting groove at both ends along their own length direction, and the mounting grooves on both sides are staggered. The mounting groove is provided to pass through the fixing rod (11) in one direction, and a limiting mechanism is fitted inside the mounting groove. The limiting mechanism includes: A semi-circular fixed plate (21) rotates vertically in the mounting groove. A fan-shaped external toothed ring (23) is fixed on its outer arc wall. A horizontal rack rod (24) meshes with the outer side of the fan-shaped external toothed ring (23). The rack rod (24) slides on the inner wall of the mounting groove. A fixed post (22) is vertically fixed on the outer edge of the side wall of the semi-circular fixed plate (21) near the opening of the mounting groove. A locking block (20) is fixed at the center of the side wall. The limiting post (25) is fixed on the side wall of the semi-circular fixed plate (21) away from the locking block (20). A slide rail spring (26) is sleeved on the outside of the limiting post (25). Another limiting post (25) with the same structure is sleeved on the other end of the slide rail spring (26). The limiting post (25) is fixed on the inner wall of the mounting groove and does not contact the rack rod (24).

2. The prefabricated retaining wall for loess areas as described in claim 1, characterized in that: The bottom of the fixed rod (11) is rotatably connected to a horizontal rotating plate (12) near the opening of the mounting groove. The length direction of the rotating plate (12) is consistent with the width direction of the fixed plate (10). A limiting part (121) is opened at the top of the rotating plate (12), and multiple equally spaced locking teeth are fixed in the limiting part (121).

3. A prefabricated retaining wall for loess regions as described in claim 2, characterized in that: The fixed rod (11) has a vertical sliding groove on the side wall near the rotating plate (12). A slider (13) slides in the sliding groove. A damping rod (131) rotates on the side wall away from the fixed rod (11). A limit block (132) rotates at the end of the damping rod (13) away from the slider (13). The limit block (132) is inserted into the limit part (121).

4. A prefabricated retaining wall for loess regions as described in claim 3, characterized in that: When the slider (13) slides to the top of the sliding groove, the limiting block (132) can be placed at the bottom of the sliding groove, at which time the damping rod (131) is in a vertical state.

5. A prefabricated retaining wall for loess regions as described in claim 1, characterized in that: The locking block (20) has a groove at the center of the side wall away from the semi-circular fixed plate (21). When the two locking blocks (20) abut against each other, the groove can be spliced ​​into a complete limiting groove. The vertical plane section of the limiting groove along the radial direction of the semi-circular fixed plate (21) is a regular polygon.

6. A prefabricated retaining wall for loess regions as described in claim 1, characterized in that: The mounting slots on the side walls of the fixed plate (10) and the fixed rod (11) that are close to each other correspond one-to-one. The semi-circular fixed plates (21) on both sides of the drive mechanism can be spliced ​​into a complete cylinder after they abut against each other, and the fan-shaped external toothed rings (23) on both sides can be spliced ​​into a complete external toothed ring after they abut against each other.

7. A prefabricated retaining wall for loess regions as described in claim 1, characterized in that: The fixing plate (10) has reinforcing ribs on one side wall corresponding to the opening of the mounting slot.

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