A lightweight foam soil roadbed retaining structure

Abstract

The invention discloses a lightweight foam soil roadbed retaining structure, which relates to the technical field of road construction and comprises a base frame, which is arranged on the bottom surface of the roadbed, one end of the base frame is movably connected with a rotating frame, the length of which is controlled by air pressure to adjust the height of the retaining wall, the other end of the rotating frame is movably connected with a first retaining frame, a second retaining frame is movably arranged at the bottom end of the first retaining frame, and the first retaining frame and the second retaining frame cooperate with each other for roadbed retaining; the rotating frame is arranged to cooperate with the first retaining frame and the second retaining frame to block lightweight foam soils of different thicknesses, thereby improving the applicability of the roadbed retaining structure, and the length of the rotating frame is controlled by air pressure, and after long-term use, the rotating frame will not become loose due to corrosion from the external environment, thereby improving the overall stability of the roadbed retaining structure.

Description

Technical Field

[0001] The invention relates to the technical field of road construction, and in particular to a lightweight foam soil roadbed retaining structure. Background Art

[0002] During road construction, before pouring lightweight foam soil, it is necessary to set up roadbed retaining structures on both sides of the roadbed, and then pour the lightweight foam soil inside the roadbed retaining structure. The roadbed retaining structure can achieve the function of blocking and reinforcing the lightweight foam soil.

[0003] The existing roadbed retaining structure has a fixed and large volume. During transportation and storage, the number of roadbed retaining structures that can be transported by a transport vehicle at one time is very limited, and a large storage space is required for storage;

[0004] The supporting device on the existing roadbed retaining structure is fixed by bolts. After long-term use, the bolts will be corroded by the external environment, resulting in the overall structure of the roadbed retaining structure being unstable, affecting the roadbed stability of the lightweight foam soil. Summary of the invention

[0005] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a lightweight foam soil roadbed retaining structure to solve the problem that the roadbed retaining structure in the prior art is large in size and inconvenient to transport and store, and the problem that after long-term use, the bolts of the roadbed retaining structure will be corroded by the external environment, resulting in the overall structural instability of the roadbed retaining structure.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A lightweight foam soil roadbed retaining structure, comprising:

[0008] An underframe, the underframe being arranged on the bottom surface of the roadbed;

[0009] A rotating frame, one end of which is movably connected to one end of the base frame, and the length of the rotating frame is controlled by air pressure to adjust the height of the retaining wall;

[0010] A first stop frame, wherein a top end of the first stop frame is movably connected to the other end of the rotating frame;

[0011] The second retaining frame is movably arranged at the bottom end of the first retaining frame, and the first retaining frame and the second retaining frame cooperate with each other to be used for roadbed retaining.

[0012] As a further solution of the present invention: the rotating frame includes a rotating seat, a fixed shaft is inserted into the inner side of the rotating seat, the fixed shaft is fixedly connected to the base frame, two telescopic rods are fixedly connected to one side of the rotating seat, telescopic sleeves are nested at the ends of the two telescopic rods away from the rotating seat, and a rotating sleeve is fixedly connected to one side of the two telescopic sleeves, and a shaft sleeve that fits with the fixed shaft is provided at the top of one side of the base frame near the fixed shaft, grooves are provided at both ends of the fixed shaft, and limit keys can be inserted into the fixed shaft to limit the radial position between the fixed shaft and the shaft sleeve, and the telescopic sleeve can freely adjust its position on the outside of the telescopic rod, thereby realizing the adjustment of the overall length of the rotating frame.

[0013] As a further solution of the present invention: an external tooth groove is provided in the middle position of the side of the fixed shaft, a gear is meshed on one side of the external tooth groove, a tooth groove rod is meshed on the side of the gear away from the external tooth groove, a piston cavity is provided inside the rotating seat near the tooth groove rod, and one end of the tooth groove rod is rotatably connected to a sealing piston that fits with the piston cavity.

[0014] As a further solution of the present invention: one end of the toothed rod away from the sealing piston is threadedly connected with a threaded rod, and the threaded rod is fixed in the piston cavity. When the toothed rod rotates, the toothed rod will move along the axial direction of the threaded rod, that is, it will push the sealing piston, causing the sealing piston to slide in the piston cavity and compress the air in the piston cavity.

[0015] As a further solution of the present invention: the end of the piston chamber away from the toothed rod is connected to a connecting groove, and the end of the connecting groove away from the piston chamber is connected to an airbag through a rotating seat. The airbag is arranged inside the telescopic rod. Since the piston chamber is connected to the connecting groove, when the air pressure in the piston chamber increases, the air in the piston chamber will be discharged into the airbag through the connecting groove, causing the airbag to expand.

[0016] As a further solution of the present invention: an anti-slip block is provided inside the telescopic rod near the airbag, the inner side of the anti-slip block is fixedly connected to a connecting spring, the outer side of the anti-slip block is fixedly connected to a convex tooth, and the inner wall of the telescopic sleeve is provided with a groove that fits with the convex tooth near the convex tooth.

[0017] As a further solution of the present invention: a rotating shaft is fixedly connected to the top end of the first retaining frame, and the rotating shaft and the rotating sleeve are fitted with each other.

[0018] As a further solution of the present invention: both sides of the second retaining frame are fixedly connected with limit sliders, and the inner side of the first retaining frame near the limit slider is provided with a sliding groove that fits with the limit slider.

[0019] Beneficial effects of the present invention:

[0020] 1. In the present invention, the rotating frame is arranged to cooperate with the first blocking frame and the second blocking frame to block lightweight foam soil of different thicknesses, thereby improving the applicability of the roadbed retaining structure. The length of the rotating frame is controlled by air pressure. After long-term use, the rotating frame will not become loose due to corrosion from the external environment, thereby improving the overall stability of the roadbed retaining structure.

[0021] 2. In the present invention, before the roadbed retaining structure is arranged, the rotating frame, the first retaining frame and the second retaining frame can be folded on the top surface of the base frame, thereby reducing the overall volume of the roadbed retaining structure and making the roadbed retaining structure convenient to transport and store.

[0022] 3. In the present invention, the length of the rotating frame can be fixed by rotating the telescopic rod, and the telescopic rod can also be rotated in the opposite direction so that the convex teeth on the outer side of the anti-slip block will be disengaged from the grooves on the inner wall of the telescopic sleeve. At this time, the telescopic rod and the telescopic sleeve are in an active state and can be freely extended and retracted for easy adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the rotating frame in the present invention;

[0026] Figure 3 It is a partial cross-sectional view of the rotating seat in the present invention;

[0027] Figure 4 is a partial cross-sectional view of the telescopic rod of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the first baffle frame in the present invention.

[0029] In the figure: 1, base frame; 2, rotating frame; 21, rotating seat; 22, fixed axis; 23, telescopic rod; 24, telescopic sleeve; 25, rotating sleeve; 26, external tooth groove; 27, gear; 28, tooth groove rod; 29, piston chamber; 210, threaded rod; 211, sealing piston; 212, connecting groove; 213, airbag; 214, anti-slip block; 215, connecting spring; 3, first stop frame; 31, rotating axis; 4, second stop frame; 41, limit slider. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figure 1-Figure 5 As shown, a lightweight foam soil roadbed retaining structure comprises a base frame 1, the base frame 1 is arranged on the bottom surface of the roadbed, one end of the base frame 1 is movably connected with a rotating frame 2, the length of which is controlled by air pressure to adjust the height of the retaining, the other end of the rotating frame 2 is movably connected with a first retaining frame 3, a second retaining frame 4 is movably arranged at the bottom end of the first retaining frame 3, and the first retaining frame 3 and the second retaining frame 4 cooperate with each other for roadbed retaining;

[0032] The rotating frame 2 is provided, and the first retaining frame 3 and the second retaining frame 4 can block light foam soil of different thicknesses, thereby improving the applicability of the roadbed retaining structure. The length of the rotating frame 2 is controlled by air pressure. After long-term use, the rotating frame 2 will not become loose due to corrosion from the external environment, thereby improving the overall stability of the roadbed retaining structure.

[0033] Before the roadbed retaining structure is arranged, the rotating frame 2, the first retaining frame 3 and the second retaining frame 4 can be folded on the top surface of the base frame 1, reducing the overall volume of the roadbed retaining structure and making the roadbed retaining structure convenient to transport and store.

[0034] like Figure 2 As shown, the rotating frame 2 includes a rotating base 21, a fixed shaft 22 is inserted into the inner side of the rotating base 21, and the fixed shaft 22 is fixedly connected to the base frame 1. Two telescopic rods 23 are fixedly connected to one side of the rotating base 21, and telescopic sleeves 24 are embedded at one end of the two telescopic rods 23 away from the rotating base 21, and a rotating sleeve 25 is fixedly connected to one side of the two telescopic sleeves 24;

[0035] A shaft sleeve that fits with the fixed shaft 22 is provided at the top of one side of the base frame 1 near the fixed shaft 22, and grooves are provided at both ends of the fixed shaft 22. A limit key can be inserted into the fixed shaft 22 to limit the radial position between the fixed shaft 22 and the shaft sleeve, and the telescopic sleeve 24 can freely adjust its position on the outside of the telescopic rod 23, thereby realizing the adjustment of the overall length of the rotating frame 2.

[0036] like Figure 3As shown, an external tooth groove 26 is provided at the middle position of the side of the fixed shaft 22, a gear 27 is meshed on one side of the external tooth groove 26, a tooth groove rod 28 is meshed on the side of the gear 27 away from the external tooth groove 26, a piston cavity 29 is provided in the rotating seat 21 near the tooth groove rod 28, and a sealing piston 211 which fits with the piston cavity 29 is rotatably connected to one end of the tooth groove rod 28;

[0037] When the rotating frame 2 is unfolded, that is, in the process of rotating the rotating seat 21, since the position of the fixed shaft 22 is fixed, relative rotation will occur between the fixed shaft 22 and the rotating seat 21. Therefore, the gear 27 will roll along the side of the fixed shaft 22, thereby realizing the rotation of the gear 27. The gear 27 is fixed inside the rotating seat 21 through the rotating shaft, so when the gear 27 rotates, it will drive the toothed rod 28 to rotate.

[0038] like Figure 3 As shown, one end of the toothed rod 28 away from the sealing piston 211 is threadedly connected to a threaded rod 210, and the threaded rod 210 is fixed in the piston chamber 29. When the toothed rod 28 rotates, the toothed rod 28 will move along the axial direction of the threaded rod 210, that is, it will push the sealing piston 211, so that the sealing piston 211 slides in the piston chamber 29, compressing the air in the piston chamber 29.

[0039] like Figure 4 As shown, one end of the piston chamber 29 away from the toothed rod 28 is connected to a connecting groove 212, and one end of the connecting groove 212 away from the piston chamber 29 passes through the rotating seat 21 and is connected to an air bag 213, and the air bag 213 is arranged inside the telescopic rod 23;

[0040] Since the piston chamber 29 is in communication with the communicating groove 212 , when the air pressure in the piston chamber 29 increases, the air in the piston chamber 29 will be discharged into the airbag 213 through the communicating groove 212 , causing the airbag 213 to expand.

[0041] like Figure 4 As shown, an anti-slip block 214 is provided inside the telescopic rod 23 near the airbag 213, a connecting spring 215 is fixedly connected to the inner side of the anti-slip block 214, a convex tooth is fixedly connected to the outer side of the anti-slip block 214, and a groove that fits with the convex tooth is provided on the inner wall of the telescopic sleeve 24 near the convex tooth;

[0042] When the airbag 213 expands, the airbag 213 will squeeze the anti-slip block 214, so that the anti-slip block 214 overcomes the elastic force of the connecting spring 215 and moves toward the outside of the telescopic rod 23. Moreover, since the outer side of the anti-slip block 214 is fixedly connected with a convex tooth, the inner wall of the telescopic sleeve 24 is provided with a groove that fits with the convex tooth near the convex tooth, so the convex tooth on the outer side of the anti-slip block 214 will cooperate with the groove on the inner wall of the telescopic sleeve 24 to fix the position of the telescopic rod 23, thereby fixing the length of the rotating frame 2. When the rotating frame 2 needs to be readjusted, it is only necessary to rotate the telescopic rod 23 in the opposite direction so that the convex tooth on the outer side of the anti-slip block 214 will disengage from the groove on the inner wall of the telescopic sleeve 24. At this time, the telescopic rod 23 and the telescopic sleeve 24 are in an active state and can be freely extended and retracted, which is very convenient.

[0043] like Figure 5 As shown, the top of the first stop frame 3 is fixedly connected with a rotating shaft 31, and the rotating shaft 31 and the rotating sleeve 25 fit together. The two sides of the second stop frame 4 are fixedly connected with limiting sliders 41. The inner side of the first stop frame 3 is provided with a sliding groove that fits together with the limiting slider 41 near the limiting slider 41.

[0044] The overall height of the first stop frame 3 and the second stop frame 4 can be adjusted according to the length of the rotating frame 2 , and a limiting track is provided on the top surface of the bottom frame 1 to cooperate with the sliding of the bottom end of the second stop frame 4 .

[0045] The working principle of the present invention is as follows: first, the length of the rotating frame 2 is adjusted according to the thickness of the lightweight foam soil, and then the telescopic rod 23 is rotated. In the process of rotating the rotating seat 21, since the position of the fixed shaft 22 is fixed, relative rotation will occur between the fixed shaft 22 and the rotating seat 21, so the gear 27 will roll along the side of the fixed shaft 22, thereby realizing the rotation of the gear 27. The gear 27 is fixed to the inside of the rotating seat 21 through the rotating shaft, so when the gear 27 rotates, the toothed rod 28 will be driven to rotate. When the toothed rod 28 rotates, the toothed rod 28 will move along the axial direction of the threaded rod 210, that is, it will push the sealing piston 211, so that the sealing piston 211 slides in the piston chamber 29, compressing the air in the piston chamber 29. Since the piston chamber 29 is connected to the connecting groove 212, the air in the piston chamber When the air pressure in 29 increases, the air in the piston chamber 29 will be discharged into the airbag 213 through the connecting groove 212, causing the airbag 213 to expand. When the airbag 213 expands, the airbag 213 will squeeze the anti-slip block 214, causing the anti-slip block 214 to overcome the elastic force of the connecting spring 215 and move toward the outside of the telescopic rod 23. Moreover, since the outer side of the anti-slip block 214 is fixedly connected with a convex tooth, and the inner wall of the telescopic sleeve 24 is provided with a groove that fits with the convex tooth near the convex tooth, the convex tooth on the outer side of the anti-slip block 214 will cooperate with the groove on the inner wall of the telescopic sleeve 24 to fix the position of the telescopic rod 23, thereby fixing the length of the rotating frame 2. When the rotating frame 2 needs to be readjusted, it is only necessary to rotate the telescopic rod 23 in the opposite direction so that the convex tooth on the outer side of the anti-slip block 214 will be disengaged from the groove on the inner wall of the telescopic sleeve 24.

[0046] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A lightweight foam soil roadbed retaining structure, characterized in that: include: A base frame (1), the base frame (1) being arranged on the bottom surface of a roadbed; A rotating frame (2), one end of the rotating frame (2) being movably connected to one end of the base frame (1), and the rotating frame (2) being controlled in length by air pressure to adjust the height of the retaining wall; A first stop frame (3), the top end of the first stop frame (3) being movably connected to the other end of the rotating frame (2); A second retaining frame (4), the second retaining frame (4) being movably arranged at the bottom end of the first retaining frame (3), the first retaining frame (3) and the second retaining frame (4) cooperating with each other to be used for roadbed retaining; The rotating frame (2) comprises a rotating seat (21), a fixed shaft (22) is inserted into the inner side of the rotating seat (21), the fixed shaft (22) is fixedly connected to the bottom frame (1), one side of the rotating seat (21) is fixedly connected to two telescopic rods (23), one end of the two telescopic rods (23) away from the rotating seat (21) is embedded with a telescopic sleeve (24), and one side of the two telescopic sleeves (24) is fixedly connected to a rotating sleeve (25); An external tooth groove (26) is provided in the middle of the side surface of the fixed shaft (22), a gear (27) is meshed on one side of the external tooth groove (26), a tooth groove rod (28) is meshed on the side of the gear (27) away from the external tooth groove (26), a piston cavity (29) is provided in the rotating seat (21) near the tooth groove rod (28), one end of the tooth groove rod (28) is rotatably connected to a sealing piston (211) that fits with the piston cavity (29); an end of the tooth groove rod (28) away from the sealing piston (211) is threadedly connected to a threaded rod (210), and the threaded rod (210) is fixed in the piston cavity (29); an end of the piston cavity (29) away from the tooth groove rod (28) is connected to a connecting groove (212), and an end of the connecting groove (212) away from the piston cavity (29) passes through the rotating seat (21) and is connected to an airbag (213), and the airbag (213) is arranged inside the telescopic rod (23); An anti-slip block (214) is provided inside the telescopic rod (23) near the airbag (213); a connecting spring (215) is fixedly connected to the inside of the anti-slip block (214); a convex tooth is fixedly connected to the outside of the anti-slip block (214); and a groove that fits with the convex tooth is provided on the inner wall of the telescopic sleeve (24) near the convex tooth.

2. A lightweight foam soil roadbed retaining structure according to claim 1, characterized in that: A rotating shaft (31) is fixedly connected to the top end of the first retaining frame (3), and the rotating shaft (31) and the rotating sleeve (25) are mutually fitted.

3. A lightweight foam soil roadbed retaining structure according to claim 1, characterized in that: The second stop frame (4) is fixedly connected to two sides of a limit slide block (41), and a slide groove that fits with the limit slide block (41) is provided on the inner side of the first stop frame (3) near the limit slide block (41).

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