A reinforced concrete culvert construction protection frame for poor soil layer roadbed protection

Abstract

The utility model belongs to the poor soil layer roadbed construction technology field, concretely is a kind of poor soil layer roadbed protection reinforced concrete culvert construction protection frame, it includes: two supports respectively for placing on the ground of one side of foundation pit and the bottom of one side in foundation pit;Support frame, its both ends are connected with the top of two described support respectively;Rotary belt, it is provided with multiple on the support frame, and the upper surface of the rotary belt is stretched from the upper surface of the support frame, for supporting the bottom of culvert in the process of being lowered into foundation pit in culvert.The reinforced concrete culvert construction protection frame for the poor soil layer roadbed protection provided in the application, support frame and rotary belt can support the bottom of culvert being lowered, guide culvert lowering, at the same time, avoid culvert falling and injuring worker, improve construction safety.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for subgrades in poor soil layers; specifically, this utility model relates to a reinforced concrete culvert construction protection frame for subgrades in poor soil layers. Background Technology

[0002] Currently, during the construction of roadbed protection in poor soil layers, the installation of culverts is carried out using truck cranes. During the process of lowering the culverts into the pit, several workers need to stand in the pit to correct the posture of the culverts in order to achieve the connection. However, due to the small size of the pit and the lack of safety protection measures, the culverts are prone to accidents if they sway significantly or if the slings or wire ropes break. Utility Model Content

[0003] In view of this, the present invention provides a reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objectives, this utility model provides a reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers, comprising: two supports, respectively placed on the ground on one side of the foundation pit and on one side of the bottom of the foundation pit; a support frame, the two ends of which are respectively connected to the top ends of the two supports; and a rotating belt, multiple of which are provided on the support frame, with the upper surface of the rotating belt extending from the upper surface of the support frame, for supporting the bottom of the culvert during the process of lowering the culvert into the foundation pit.

[0005] Preferably, the support includes: an upper body, the top of which is connected to the end of the support frame; a lower body, located below the upper body; and an elastic telescopic rod, the upper and lower ends of which are respectively connected to the upper body and the lower body.

[0006] Preferably, the support further includes: a sleeve block, the top of which is fixedly connected to the bottom of the upper seat; a sleeve hole, which is disposed in the sleeve block, and the elastic telescopic rod passes through the sleeve hole; the inner diameter of the sleeve hole is configured to match the maximum outer diameter of the elastic telescopic rod.

[0007] Preferably, it further includes: an arc-shaped positioning plate, one of which is fixedly provided at each of the four ends of the support frame; positioning holes, which are equidistantly provided on the arc-shaped positioning plate; a positioning bolt, one end of which passes through one of the positioning holes and is threadedly connected to the upper body; the end of the support frame is rotatably connected to the upper body, and the center of the arc-shaped positioning plate coincides with the rotation center of the end of the support frame.

[0008] Preferably, it further includes: an extension plate, fixedly disposed at the top of the support frame and parallel to the support frame; a sliding plate, slidably mounted on the extension plate, the bottom end of the sliding plate being fixedly connected to a support pipe; the support pipe can support the bottom of the pit by moving downward along the length direction of the extension plate.

[0009] Preferably, the extension plate is provided with a strip groove, a slider is slidably disposed in the strip groove, and the slider is fixedly connected to the slide plate.

[0010] Preferably, a semi-circular rod is fixedly installed at the top of the slide plate, and the semi-circular rod is convex outward relative to the top of the rotating belt and the slide plate in a direction perpendicular to the top surface of the support frame.

[0011] Preferably, the rotary belt has a plurality of rotating rollers arranged at equal intervals inside, and the rotating rollers have a limiting groove in the middle. The rotary belt is sleeved in the limiting groove, and the outer surface of the rotary belt extends out of the limiting groove. The rotating rollers are rotatably mounted on the support frame.

[0012] Compared with the prior art, this application has at least the following beneficial effects:

[0013] The reinforced concrete culvert construction protection frame for subgrade protection in this application includes a support frame and a slewing belt that can support the bottom of the culvert being hoisted and lowered. Workers stand in the pit on both sides of the support frame. On the one hand, the support frame and slewing belt can assist in supporting the culvert, preventing it from swaying, and guiding its lowering. On the other hand, if the hoisting belt or wire rope breaks and causes the culvert to fall, the support frame can support the culvert and roll it to the other side of the pit, preventing it from injuring workers and improving construction safety. Attached Figure Description

[0014] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0015] Figure 1 This invention provides a schematic diagram of the structure of a reinforced concrete culvert construction protection frame for roadbed protection in poor soil conditions, as shown in one embodiment of the present application.

[0016] Figure 2 For this application Figure 1 Enlarged view of point A in the image;

[0017] Figure 3 For this application Figure 1 A partial breakdown diagram.

[0018] in, Figures 1 to 3 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0019] 1. Support, 1.1 Upper seat body, 1.2 Lower seat body, 1.3 Elastic telescopic rod, 1.4 Sleeve block, 1.5 Sleeve hole;

[0020] 2. Support frame, 3. Rotary belt, 4. Arc-shaped positioning plate, 5. Positioning hole, 6. Positioning bolt, 7. Extension plate, 8. Slide plate, 9. Support tube, 10. Strip groove, 11. Slider, 12. Semi-circular rod, 13. Rotary roller, 14. Limiting groove. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figures 1 to 3 As shown, this application proposes a reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers, comprising: two supports 1, respectively placed on the ground on one side of the foundation pit and on one side of the bottom of the foundation pit; a support frame 2, the two ends of which are respectively connected to the top of the two supports 1; and a rotating belt 3, multiple of which are provided on the support frame 2, with the upper surface of the rotating belt 3 extending from the upper surface of the support frame 2, for supporting the bottom of the culvert during the process of lowering the culvert into the foundation pit.

[0023] The reinforced concrete culvert construction protection frame for subgrade protection in this application has two supports 1, one higher and one lower. The higher support 1 is supported on the ground outside the subgrade, while the lower support 1 is supported at the bottom of the pit, resulting in a support frame 2 that is higher on the outside and lower on the inside, and the support frame 2 is detached from the edge of the pit. A rotating belt 3 can rotate on the support frame 2. After contacting the bottom of the culvert being hoisted, as the culvert is lowered into the pit along the inclined direction of the support frame 2, the rotating belt 3 follows the culvert, preventing slippage and friction, and providing support and protection for the culvert. At this time, workers in the pit stand on either side of the support frame 2. The support frame 2, by supporting the culvert and coordinating with the hoisting force, prevents the culvert from swaying, improving safety. Simultaneously, in the event of a broken sling or wire rope, the culvert will fall onto the support frame 2 and roll along the top of the support frame 2 towards the center of the pit, thus preventing accidental injury to workers standing on the side of the pit.

[0024] The support 1 includes: an upper body 1.1, the top of which is connected to the end of the support frame 2; a lower body 1.2, located below the upper body 1.1; and an elastic telescopic rod 1.3, the upper and lower ends of which are connected to the upper body 1.1 and the lower body 1.2 respectively.

[0025] The elastic telescopic rod 1.3 provides a buffer for the support frame 2 through the upper seat 1.1. Thus, when the hoisted culvert comes into contact with the top of the rotating belt 3, the support frame 2 can achieve a buffering effect by compressing the elastic telescopic rod 1.3 downwards. On the one hand, it avoids the rigid collision between the support frame 2 and the culvert, which would cause damage to both. On the other hand, the retraction of the elastic telescopic rod 1.3 can ensure that the sling always maintains the hoisting state of the culvert, improving the safety and stability when the culvert is lowered into the pit.

[0026] The support 1 also includes: a sleeve block 1.4, the top of which is fixedly connected to the bottom of the upper body 1.1; and a sleeve hole 1.5, which is set inside the sleeve block 1.4, through which the elastic telescopic rod 1.3 passes. The inner diameter of the sleeve hole 1.5 is configured to match the maximum outer diameter of the elastic telescopic rod 1.3. The thicker part at the bottom of the elastic telescopic rod 1.3 is always in contact with the inner wall of the sleeve hole 1.5. During the extension and retraction of the elastic telescopic rod 1.3, the sleeve block 1.4 is fitted onto the outside of the elastic telescopic rod 1.3 through the sleeve hole 1.5, so that the entire elastic telescopic rod 1.3 is located inside the sleeve hole 1.5, thereby reducing the lateral stress between the extension and retraction part and the thicker part at the bottom of the elastic telescopic rod 1.3, and improving its service life and stability.

[0027] The reinforced concrete culvert construction protection frame for the protection of subgrade in poor soil layer of this application also includes: an arc-shaped positioning plate 4, one of which is fixedly installed at each of the four ends of the support frame 2; positioning holes 5, which are equidistantly arranged on the arc-shaped positioning plate 4; positioning bolts 6, one end of which passes through one of the positioning holes 5 and is threadedly connected to the upper seat 1.1; the end of the support frame 2 is rotatably connected to the upper seat 1.1, and the center of the arc-shaped positioning plate 4 coincides with the rotation center of the end of the support frame 2.

[0028] By using the arc-shaped positioning plate 4, positioning holes 5, and positioning bolts 6, the support frame 2 can be locked at different tilt angles. Thus, in practical applications, the tilt angle of the support frame 2 can be adjusted according to the errors during the excavation of the pit sidewalls and the different positions of the culvert, so that the bottom of the support frame 2 is always close to the predetermined position of the culvert.

[0029] The reinforced concrete culvert construction protection frame for the protection of subgrade in poor soil layer of this application also includes: an extension plate 7, which is fixedly installed at the top of the support frame 2 and parallel to the support frame 2; a sliding plate 8, which is slidably installed on the extension plate 7, and a support pipe 9 is fixedly connected to the bottom of the sliding plate 8; the support pipe 9 can be supported at the bottom of the foundation pit by moving downward along the length direction of the extension plate 7.

[0030] By setting the support pipe 9, it can be supported at the bottom of the foundation pit, so that the bottom end of the support frame 2 is supported at the bottom of the foundation pit. Therefore, after the culvert passes the bottom of the support frame 2 downward, it can prevent the top of the support frame 2 from tilting upward under the gravity of the culvert, thus improving the stability and safety of the support frame 2.

[0031] The extension plate 7 and the sliding plate 8 allow the distance between the support pipe 9 and the bottom of the support frame 2 to be adjustable. Thus, after the tilt angle of the support frame 2 is adjusted, the support pipe 9 can be effectively supported at the bottom of the pit by moving along the tilt direction of the support frame 2.

[0032] The extension plate 7 has a strip groove 10, and a slider 11 is slidably disposed in the strip groove 10, and the slider 11 is fixedly connected to the slide plate 8. The cooperation between the strip groove 10 and the slider 11 stably slides the slide plate 8 on the extension plate 7.

[0033] A semi-circular rod 12 is fixedly installed at the top of the slide plate 8, and the semi-circular rod 12 protrudes outward relative to the top of the rotating belt 3 and the slide plate 8 in the direction perpendicular to the top surface of the support frame 2. By setting the semi-circular rod 12, when the culvert moves downward along the inclined direction of the support frame 2, after the culvert passes the bottom of the rotating belt 3, it will contact the semi-circular rod 12, and by pushing the semi-circular rod 12, the support pipe 9 will move towards the bottom of the pit and finally be stably supported at the bottom of the pit. In addition, by using the blocking effect of the semi-circular rod on the culvert, the culvert can be adjusted to a state perpendicular to the plane of the support frame 2.

[0034] The rotating belt 3 has several rollers 13 evenly spaced inside. Each roller 13 has a limiting groove 14 in its center. The rotating belt 3 is fitted inside the limiting groove 14, with its outer surface extending beyond the groove. The rollers 13 are rotatably mounted on the support frame 2. The cooperation between the rollers 13 and the limiting groove 14 not only improves the stability of the rotating belt 3 supporting the culvert, but also enhances the stability of the rotating belt 3, preventing it from shifting due to friction from the culvert.

[0035] During the process of lowering the hoisted culvert into the foundation pit, the protective frame is first placed on one side of the predetermined position for lowering the culvert. This ensures that the bottom of the hoisted culvert contacts the rotating belt 3. At this point, the elastic telescopic rod 1.3 is compressed, supporting and holding the bottom of the culvert by the rotating belt 3 while maintaining the culvert in a hoisted state. The culvert is then lowered into the foundation pit along the inclination direction of the support frame 2. Throughout this process, the support frame 2 remains at the bottom of the culvert, preventing the culvert from swaying or falling and injuring workers, until the culvert detaches from the support frame 2 and is lowered into the foundation pit.

[0036] Throughout the hoisting process, workers inside the pit stand on the front and rear sides of the support frame 2. In this position, the support frame 2 is at a higher height. If the culvert falls, it will be buffered by the elastic telescopic rod 1.3 and then supported by the support frame 2, and will roll along the support frame 2 to the other side of the pit, thus preventing it from falling in any way and injuring the workers, thereby improving the safety of the culvert hoisting construction.

[0037] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers, characterized in that, include: Two supports (1) are used to be placed on the ground on one side of the foundation pit and on one side of the bottom of the foundation pit, respectively; The support frame (2) is connected at both ends to the top ends of the two supports (1); Rotary belts (3) are provided on the support frame (2) in multiple ways, and the upper surface of the rotary belts (3) extends from the upper surface of the support frame (2) to support the bottom of the culvert during the process of lowering the culvert into the pit.

2. The reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers as described in claim 1, characterized in that, The support (1) includes: The upper seat (1.1) has its top end connected to the end of the support frame (2); The lower seat (1.2) is located below the upper seat (1.1); The elastic telescopic rod (1.3) is connected at its upper and lower ends to the upper seat (1.1) and the lower seat (1.2) respectively.

3. The reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers as described in claim 2, characterized in that, The support (1) further includes: The top of the sleeve block (1.4) is fixedly connected to the bottom of the upper seat (1.1); A sleeve hole (1.5) is provided inside the sleeve block (1.4), and the elastic telescopic rod (1.3) passes through the sleeve hole (1.5). The inner diameter of the sleeve hole (1.5) is configured to match the maximum outer diameter of the elastic telescopic rod (1.3).

4. The reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers as described in claim 2, characterized in that, Also includes: An arc-shaped positioning plate (4) is fixedly installed at each of the four ends of the support frame (2); Positioning holes (5) are equidistantly arranged on the arc-shaped positioning plate (4); The positioning bolt (6) has one end passing through one of the positioning holes (5) and then threadedly connected to the upper seat (1.1); The end of the support frame (2) is rotatably connected to the upper seat (1.1), and the center of the arc-shaped positioning plate (4) coincides with the rotation center of the end of the support frame (2).

5. The reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers as described in claim 4, characterized in that, Also includes: An extension plate (7) is fixedly installed at the top of the support frame (2) and is parallel to the support frame (2); The slide plate (8) is slidably mounted on the extension plate (7), and the bottom end of the slide plate (8) is fixedly connected to the support tube (9). The support pipe (9) can be supported at the bottom of the pit by moving downward along the length direction of the extension plate (7).

6. The reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers as described in claim 5, characterized in that, The extension plate (7) is provided with a strip groove (10), and a slider (11) is slidably disposed in the strip groove (10), and the slider (11) is fixedly connected to the slide plate (8).

7. The reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers as described in claim 5, characterized in that, A semi-circular rod (12) is fixedly installed at the top of the slide plate (8), and the semi-circular rod (12) is convex outward relative to the top of the rotating belt (3) and the slide plate (8) in the direction perpendicular to the top surface of the support frame (2).

8. The reinforced concrete culvert construction protection frame for roadbed protection in poor soil layers as described in claim 1, characterized in that, The rotating belt (3) has several rotating rollers (13) arranged at equal intervals inside. A limiting groove (14) is provided in the middle of the rotating roller (13). The rotating belt (3) is sleeved in the limiting groove (14), and the outer surface of the rotating belt (3) extends out of the limiting groove (14). The rotating roller (13) is rotatably mounted on the support frame (2).

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