A device for continuous casting of the foundation layer of complex concrete support structures.

Abstract

This utility model provides a device for continuous pouring of the foundation layer of complex concrete support structures, belonging to the field of concrete pouring technology. The technical solution includes a frame with a concrete storage tank mounted on it, and a paving plate and a scraper plate mounted on the lower part of the frame. The frame comprises a body consisting of a pair of parallel axles and a pair of crossbars at both ends of the axles, with wheels at both ends of the crossbars. The beneficial effects of this utility model are: the concrete storage tank of this device can quickly unload concrete from the concrete mixer truck, and multiple units can achieve continuous or sequential pouring according to a planned, conflict-free pouring scheme, maximizing the working efficiency of the concrete mixer truck.

Description

Technical Field

[0001] This utility model relates to the field of concrete pouring technology, and in particular to a device that can realize the continuous pouring of the foundation layer of complex concrete support structures. Background Technology

[0002] In recent years, with the rapid development of my country's social economy, while urban buildings are constantly expanding upwards, the development and utilization of underground space has also become an important direction, such as underground shopping malls, underground parking lots, and underground high-speed railway stations. The deep foundation pit engineering involved in underground space development is a very complex system engineering project. To ensure the stability of the foundation pit, it is usually necessary to set up a support structure before excavation to effectively control the deformation of the foundation pit. Existing support structure methods mainly include steel supports, concrete supports, and hybrid supports of steel and concrete. Given the large area and depth of the foundation pit in the construction of underground high-speed railway stations, steel supports are insufficient to meet the stress requirements of the support structure. Multiple concrete supports are usually required as the foundation pit support structure. To ensure the quality and smoothness of the concrete structure pouring, a foundation layer is usually poured before the reinforcement is tied. However, due to limitations such as the large area of ​​the high-speed railway station foundation pit, the generally long pouring distance, the complex interlacing of concrete structures, the generally small thickness of the subbase pouring, the difficulty in deploying large high-pressure concrete pump trucks, the difficulty in controlling manual pouring construction, and the low construction precision, existing methods in similar scenarios mainly involve slowly unloading concrete into the subbase mold using excavator buckets or simple manual pouring buckets. A large number of workers then use shovels, scrapers, and other tools to spread the concrete and advance it step by step to complete the spreading, leveling, and curing of the subbase. This construction method requires a large amount of manpower, and the excavator bucket loading and unloading method can only pour and spread about 1m³ of concrete at a time, making it difficult to achieve rapid and continuous concrete spreading. This results in low concrete pouring efficiency, extended construction period, and high construction costs. Therefore, this invention provides a device that enables continuous pouring of subbases for complex concrete support structures. Utility Model Content

[0003] The purpose of this invention is to provide a device that can continuously pour the foundation layer of complex concrete support structures, thereby reducing the cost of manual concrete pouring and paving and significantly improving the efficiency of concrete pouring.

[0004] This utility model is achieved through the following measures:

[0005] A device for continuous pouring of a foundation layer for complex concrete support structures is characterized by comprising a frame on which a concrete storage box is mounted, and a paving plate and a scraper plate are mounted on the lower part of the frame. The scraper plate, the paving plate and the concrete storage box are arranged sequentially along the forward direction of the device, i.e., the scraper plate is located at the rear. Preferably, the volume of the concrete storage box is 2-3 m³.

[0006] The frame includes a frame consisting of a pair of parallel axles and a pair of crossbars at both ends of the axles. Both ends of the two crossbars are equipped with wheels, and the diameter of the wheels is not less than 50cm, which facilitates movement within the pit.

[0007] The specific features of this utility model also include:

[0008] The concrete storage box is a funnel-shaped box with a discharge port at the bottom. As a specific embodiment, the discharge port is equipped with a pouring valve for controlling the falling concrete, which can open or close the concrete pouring as needed.

[0009] The box is equipped with a screening plate, and the screening plate can be selected according to the concrete particle size to adjust the passing speed and thus control the pouring speed.

[0010] The box is fixed to the frame by four sets of vertical rods.

[0011] T-shaped grooves are provided on the inner surfaces of the two opposing axles. Each T-shaped groove includes an outer groove and an inner groove. Obviously, the outer groove is close to the inner surface of the axle, and the inner groove is located inside the outer groove and communicates with it. The length of the inner groove is greater than the length of the outer groove. Each inner groove on both sides is provided with a matching inner guide wheel. A round shaft is provided between the two inner guide wheels, and the scraper plate is provided around the round shaft. The inner guide wheels can slide along the inner grooves to adjust the position of the scraper plate. They can also rotate to adjust the angle of the scraper plate by rotating the inner guide wheels, thereby adapting to the requirements of on-site operation.

[0012] Auxiliary rods are provided on the lower side of the axles on both sides, and the paving plate is hinged between the auxiliary rods on both sides. Inner guide wheels are provided in the inner grooves on both sides, and a rotating shaft is provided on the inner guide wheels on both sides. The rotating shaft passes through the outer groove and a guide rod is vertically provided. The free end of the guide rod is hinged to the paving plate. A transverse rod is provided between the guide rods on both sides to connect them into a whole. By moving the position of the inner guide wheels, the angle of the paving plate can be adjusted to adapt to the corresponding on-site operation requirements.

[0013] The inner guide wheel one and the inner guide wheel two have the same structure and both include a circular plate. The outer periphery of the circular plate is provided with several sets of semi-circular arc-shaped grooves.

[0014] Both sides of the axle are provided with through grooves that extend to the inner sliding groove on their upper sides;

[0015] Both inner guide wheel one and inner guide wheel two are provided with a locking mechanism. The locking mechanism includes a pair of T-shaped sliders that are slidably disposed in the T-shaped groove. On the inner surfaces of the T-shaped sliders on both sides, there are arc-shaped plates that cooperate with the circular plate. On the inner arc surface of the arc plate, there are several sets of protrusions that cooperate with the groove. The protrusions are stuck in the corresponding grooves, thereby limiting the circular plate and restricting its rotation and movement.

[0016] Both sides of the T-shaped slider are provided with an upper extension plate extending out of the through groove. The upper extension plates on both sides are connected by a screw and a nut, thereby pressing the arc-shaped plates on both sides against the outer periphery of the corresponding circular plates.

[0017] An auxiliary plate is provided on one side of the upper extension plate after it extends out of the through groove. A locking bolt is provided on the auxiliary plate through a threaded structure. The lower end of the locking bolt is pressed against the upper side of the axle, thereby fixing and limiting the locking mechanism and preventing it from sliding.

[0018] When it is necessary to adjust the position or angle of the scraper plate and the paving plate, first loosen the locking bolt so that the inner guide wheel one and the inner guide wheel two can slide back and forth with the locking mechanism, thereby adjusting the angle of the paving plate and the position of the scraper plate. Then loosen the nut of the locking mechanism on the inner guide wheel one so that the arc plates on both sides move away from the inner guide wheel one, and then the angle of the scraper plate can be adjusted.

[0019] It also includes a towing rod, which is provided with a towing hook hole. In special areas where movement is difficult, mechanical equipment can be used for towing. As a specific embodiment, the towing rod can be set on the outer side of the box.

[0020] The specific usage method is as follows:

[0021] 1. Based on the design scheme of concrete support in deep foundation pit, level the bottom surface of the foundation pit and complete the measurement and layout work, and complete the installation and overlapping of the concrete cushion layer mold.

[0022] 2. Place the equipment at the edge of the foundation pit and secure it. Close the equipment's injection valve. Then, use a conveyor belt to unload the concrete from the concrete mixer truck into the concrete storage box until the designed maximum storage line is reached. In addition, workers can simultaneously use vibrators to compact the concrete to ensure that the concrete in the equipment's storage container is uniform.

[0023] 3. Move the pouring equipment to the pouring starting point, adjust the position of the screed plate according to the operation requirements, and adjust the tilt angle of the paving plate and the screed plate according to the design pouring thickness of the subbase. Then fix the paving plate and the screed plate through the locking mechanism.

[0024] 4. Open the equipment's injection valve to ensure that the concrete flows freely downward along the device into the subbase mold. Simultaneously move forward (backward) according to the pouring sequence to achieve continuous concrete pouring and complete the corresponding subbase construction with the help of the equipment's own paving plate and scraper plate.

[0025] 5. After all the concrete in the container of the pouring equipment is poured, move the equipment to the edge of the foundation pit and repeat the previous steps to achieve continuous concrete pouring. According to the established pouring plan and pouring area, the pouring operation of the concrete support structure cushion layer is completed in sequence. In addition, under the premise that there is no conflict in the pouring line, multiple pouring equipment can simultaneously carry out the pouring operation of the concrete support structure cushion layer.

[0026] Finally, in some complex areas, the concrete cushion layer can be poured using a combination of equipment and manual labor until the concrete support structure cushion layer in the foundation pit is completed.

[0027] The beneficial effects of this utility model are as follows: the concrete storage box of this equipment can quickly unload concrete from the concrete mixer truck, and multiple devices can achieve continuous or sequential pouring according to the planned conflict-free pouring scheme, thereby maximizing the working efficiency of the concrete mixer truck. At the same time, the internal guide rail of the axle can realize the installation of the scraper plate and the paving plate and achieve angle control, realizing the integrated construction process of pouring, paving and leveling. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0029] Figure 2 for Figure 1 A magnified view of A in the middle.

[0030] Figure 3 This is a schematic diagram of the structure of the inner guide wheel in this embodiment of the present invention.

[0031] Figure 4 This is a schematic diagram of the locking mechanism in an embodiment of the present invention.

[0032] The attached diagram is labeled as follows: 1. Axle; 2. Paving plate; 3. Scraper plate; 4. Concrete storage box; 5. Screening plate; 6. Wheel; 7. Traction rod; 8. Transverse rod; 9. Guide rod; 10. T-shaped chute; 11. Inner guide wheel two; 12. Through groove; 13. Auxiliary plate; 14. Upper extension plate; 15. Inner guide wheel one; 16. T-shaped slider; 17. Circular plate; 18. Groove; 19. Screw; 20. Arc plate. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0037] See Figure 1-4 A device for continuous pouring of a complex concrete support structure subbase includes a frame on which a concrete storage tank 4 is mounted. A paving plate 2 and a scraper plate 3 are mounted on the lower part of the frame. The scraper plate 3, the paving plate 2 and the concrete storage tank 4 are arranged sequentially along the forward direction of the device, i.e., the scraper plate 3 is located at the rear. Preferably, the volume of the concrete storage tank 4 is 2-3 m³.

[0038] The frame includes a frame consisting of a pair of parallel axles 1 and a pair of crossbars at both ends of the axles 1. Both ends of the two crossbars are provided with wheels 6, and the diameter of the wheels 6 is not less than 50cm, which facilitates movement within the pit.

[0039] The concrete storage box 4 is a funnel-shaped box with a discharge port at the bottom. In a specific embodiment, the discharge port is equipped with a pouring valve for controlling the falling concrete, which can open or close the concrete pouring as needed.

[0040] The box is equipped with a sieve plate 5, which can be selected according to the concrete particle size to adjust the passing speed and thus control the pouring speed.

[0041] The box is fixed to the frame by four sets of vertical rods.

[0042] T-shaped grooves 10 are provided on the inner sides of the two opposing axles 1. Each T-shaped groove 10 includes an outer groove and an inner groove. Obviously, the outer groove is close to the inner side of the axle 1, and the inner groove is located inside the outer groove and communicates with it. The length of the inner groove is greater than the length of the outer groove. Each inner groove on both sides is provided with a matching inner guide wheel 15. A round shaft is provided between the two inner guide wheels 15. The scraper plate 3 is provided around the round shaft. The inner guide wheels 15 can slide along the inner groove to adjust the position of the scraper plate 3. At the same time, they can rotate to adjust the angle of the scraper plate 3 by rotating the inner guide wheels 15, thereby adapting to the requirements of on-site operation.

[0043] Auxiliary rods are provided on the lower sides of the axles 1 on both sides. The paving plate 2 is hinged between the auxiliary rods on both sides. Inner guide wheels 11 are provided in the inner grooves on both sides. A rotating shaft is provided on the inner guide wheels 11 on both sides. The rotating shaft passes through the outer groove and is vertically provided with a guide rod 9. The free end of the guide rod 9 is hinged to the paving plate 2. A transverse rod 8 is provided between the guide rods 9 on both sides to connect them into a whole. By moving the position of the inner guide wheels 11, the angle of the paving plate 2 can be adjusted to adapt to the corresponding on-site operation requirements.

[0044] The inner guide wheel 15 and the inner guide wheel 11 have the same structure and both include a circular plate 17. The outer periphery of the circular plate 17 is provided with several sets of semi-circular arc-shaped grooves 18.

[0045] Both sides of the axle 1 are provided with through grooves 12 that extend to the inner sliding groove on their upper sides;

[0046] Both the inner guide wheel 15 and the inner guide wheel 11 are equipped with a locking mechanism. The locking mechanism includes a pair of T-shaped sliders 16 that are slidably disposed in the T-shaped groove 10. On the inner sides of the T-shaped sliders 16 on both sides, there are arc-shaped plates 20 that cooperate with the circular plate 17. On the inner arc surface of the arc plate 20, there are several sets of protrusions 21 that cooperate with the groove 18. The protrusions 21 are stuck in the corresponding grooves 18, thereby limiting the circular plate 17 and restricting its rotation and movement.

[0047] Both sides of the T-shaped slider 16 are provided with an upper extension plate 14 extending out of the through groove 12. The upper extension plates 14 on both sides are connected by a screw 19 and a nut, thereby pressing the arc plates 20 on both sides against the periphery of the corresponding circular plates 17.

[0048] An auxiliary plate 13 is provided on one side of the upper extension plate 14 after it extends out of the through groove 12. A locking bolt is provided on the auxiliary plate 13 through a threaded structure. The lower end of the locking bolt is pressed against the upper side of the axle 1, thereby fixing and limiting the locking mechanism and preventing it from sliding.

[0049] When it is necessary to adjust the position or angle of the scraper plate 3 and the paving plate 2, first loosen the locking bolt so that the inner guide wheel 15 and the inner guide wheel 21 can slide back and forth with the locking mechanism, thereby adjusting the angle of the paving plate 2 and the position of the scraper plate 3. Then loosen the nut of the locking mechanism on the inner guide wheel 15 so that the arc plates 20 on both sides move away from the inner guide wheel 15, and then the angle of the scraper plate 3 can be adjusted.

[0050] It also includes a traction rod 7, which is provided with a traction hook hole. In special areas where movement is difficult, mechanical equipment can be used for traction. As a specific embodiment, the traction rod 7 can be set on the outer side of the box.

[0051] The specific usage method is as follows:

[0052] 1. Based on the design scheme of concrete support in deep foundation pit, level the bottom surface of the foundation pit and complete the measurement and layout work, and complete the installation and overlapping of the concrete cushion layer mold.

[0053] 2. Place the equipment at the edge of the foundation pit and secure it. Close the equipment's injection valve. Then, use a conveyor belt to unload the concrete from the concrete mixer truck into the concrete storage tank 4 until the designed maximum storage line is reached. In addition, workers can simultaneously use vibrators to compact the concrete to ensure that the concrete in the equipment's storage container is uniform.

[0054] 3. Move the pouring equipment to the pouring starting point, adjust the position of the scraper plate 3 according to the operation requirements, and adjust the tilt angle of the paving plate 2 and the scraper plate 3 according to the design pouring thickness of the subbase. Then fix the paving plate 2 and the scraper plate 3 through the locking mechanism.

[0055] 4. Open the equipment injection valve to ensure that the concrete flows freely downward along the device into the subbase mold. Simultaneously move forward (backward) according to the pouring sequence to achieve continuous concrete pouring and complete the corresponding subbase construction with the help of the equipment's own paving plate 2 and scraper plate 3.

[0056] 5. After all the concrete in the container of the pouring equipment is poured, move the equipment to the edge of the foundation pit and repeat the previous steps to achieve continuous concrete pouring. According to the established pouring plan and pouring area, the pouring operation of the concrete support structure cushion layer is completed in sequence. In addition, under the premise that there is no conflict in the pouring line, multiple pouring equipment can simultaneously carry out the pouring operation of the concrete support structure cushion layer.

[0057] Finally, in some complex areas, the concrete cushion layer can be poured using a combination of equipment and manual labor until the concrete support structure cushion layer in the foundation pit is completed.

[0058] The technical features of this utility model not described can be implemented by or by using existing technology, and will not be repeated here. Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A device for continuous casting of the foundation layer of complex concrete support structures, characterized in that, Includes a frame, on which a concrete storage box (4) is provided, and on the lower part of the frame a paving plate (2) and a scraper plate (3); The frame includes a frame consisting of a pair of parallel axles (1) and a pair of crossbars at both ends of the axles (1), with wheels (6) at both ends of the two crossbars.

2. The apparatus of claim 1, wherein, The concrete storage box (4) is a funnel-shaped box with a discharge port at the bottom. The box is equipped with a sieve plate (5); The box is fixed to the frame by four sets of vertical rods.

3. The apparatus of claim 1, wherein, T-shaped grooves (10) are provided on the inner sides of the two axles (1) facing each other. The T-shaped grooves (10) include outer grooves and inner grooves. Inner guide wheels (15) are provided in the inner grooves on both sides. A round shaft is provided between the inner guide wheels (15) on both sides. The scraper plate (3) is provided around the round shaft.

4. The equipment for continuous pouring of the foundation layer of complex concrete support structures according to claim 3, characterized in that, Auxiliary rods are provided on the lower side of the axles (1) on both sides. The paving plate (2) is hinged between the auxiliary rods on both sides. Inner guide wheels (11) are provided in the inner grooves on both sides. A rotating shaft is provided on the inner guide wheels (11) on both sides. A guide rod (9) is vertically provided after the rotating shaft passes through the outer groove. The free end of the guide rod (9) is hinged to the paving plate (2). A transverse rod (8) is provided between the guide rods (9) on both sides to connect them into a whole.

5. The equipment for continuous casting of the foundation layer of complex concrete support structures according to claim 4, characterized in that, The inner guide wheel one (15) and the inner guide wheel two (11) have the same structure and both include a circular plate (17). The outer periphery of the circular plate (17) is provided with several sets of semi-circular arc structure grooves (18). Both sides of the axle (1) are provided with through grooves (12) that extend to the inner slide groove on their upper sides; Both inner guide wheel one (15) and inner guide wheel two (11) are provided with a locking mechanism. The locking mechanism includes a pair of T-shaped sliders (16) that are slidably disposed in the T-shaped groove (10). On the inner sides of the T-shaped sliders (16) on both sides, there are arc plates (20) that cooperate with the circular plate (17). On the inner arc surface of the arc plate (20), there are a number of protrusions (21) that cooperate with the groove (18). The protrusions (21) are stuck in the corresponding grooves (18).

6. The equipment for continuous casting of the foundation layer of complex concrete support structures according to claim 5, characterized in that, Both sides of the T-shaped slider (16) are provided with an upper extension plate (14) extending out of the through groove (12), and the upper extension plates (14) on both sides are connected by a screw (19) and a nut.

7. The equipment for continuous casting of the foundation layer of complex concrete support structures according to claim 6, characterized in that, An auxiliary plate (13) is provided after the upper extension plate (14) on one side extends out of the through groove (12). A locking bolt is provided on the auxiliary plate (13) through a threaded structure. The lower end of the locking bolt is pressed against the upper side of the axle (1).

8. The equipment for continuous casting of the foundation layer of complex concrete support structures according to claim 1, characterized in that, It also includes a traction rod (7), which has a traction hook hole.

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