Novel pile foundation pouring tumbling barrel

Abstract

The utility model provides a novel pile foundation pouring tumbling cylinder, which belongs to the field of building devices, and comprises an outer cylinder and an inner cylinder, and the inner cylinder is coaxially positioned in the outer cylinder; four gears are rotationally connected into the outer cylinder, four rack plates are fixed to the outer wall of the inner cylinder, and the gears are connected with the rack plates in an engaged mode; a lifting mechanism; the lifting mechanism comprises a feeding hopper installed at the upper end of the outer barrel, two vertical plates are installed at the bottom of the feeding hopper, motors are installed on the two vertical plates, reels are fixed to the output ends of the motors, steel ropes are wound around the reels, the steel ropes are fixedly connected with the lower end of the inner barrel, and the inner barrel is fixedly connected with the lower end of the outer barrel. A conical guide ring is fixed to the upper end of the inner cylinder and abuts against the inner wall of the outer cylinder in a sliding mode. The gear and the rack plate are matched, so that the inner cylinder can stably move up and down, the inner cylinder is effectively prevented from rotating, and pile foundation pouring work can be efficiently and stably carried out.

Description

Technical Field

[0001] This utility model relates to the field of building equipment technology, and in particular to a novel pile foundation casting duct. Background Technology

[0002] A tremie pipe is a cylindrical structure used to prevent segregation of concrete during vertical concrete transport. The concrete slides down through it. Like tremie pipes and chutes, tremie pipes are used to transport concrete. On construction sites, tremie pipes are typically directly connected to the pump truck's delivery pipe. Segregation occurs when concrete falls more than 2 meters in free fall; therefore, tremie pipes, tremie pipes, or chutes are used to transport concrete for pile foundations exceeding 2 meters in height.

[0003] The prior art, disclosed in CN113622677A, describes an automatic concrete pouring and vibration device for pier pile foundations and its construction method. In this device, a first hook and a second hook are respectively provided on the upper inner side and lower outer side of a single tremie pipe unit. The first hook and the second hook of two adjacent tremie pipe units are engaged to prevent slippage during expansion and contraction. However, if the tremie pipe unit rotates during use, the first hook and the second hook will not be aligned, thus failing to effectively ensure a stable connection between adjacent tremie pipe units. Therefore, this application proposes a novel pile foundation pouring tremie pipe. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a novel pile foundation casting duct.

[0005] An embodiment of this utility model provides a novel pile foundation casting duct, comprising:

[0006] An outer cylinder and an inner cylinder, wherein the inner cylinder is coaxially located inside the outer cylinder; four gears are rotatably connected inside the outer cylinder, and four rack plates are fixed to the outer wall of the inner cylinder, with the gears meshing with the rack plates;

[0007] A lifting mechanism; the lifting mechanism includes a feeding hopper installed at the upper end of the outer cylinder, two vertical plates installed at the bottom of the feeding hopper, a motor installed on each of the two vertical plates, a winding wheel fixed at the output end of the motor, a steel rope wound on the winding wheel, and the steel rope fixedly connected to the lower end of the inner cylinder.

[0008] Furthermore, a conical guide ring is fixed to the upper end of the inner cylinder, and the conical guide ring slides against the inner wall of the outer cylinder.

[0009] Furthermore, a connecting block is fixed to the bottom of the outer wall of the inner cylinder, and the steel rope is fixedly connected to the connecting block.

[0010] Furthermore, a rotatable drive shaft is provided through the two vertical plates. The drive shaft is connected to two winding wheels through a transmission mechanism. The output end of the motor is coaxially and fixedly connected to one of the winding wheels.

[0011] Furthermore, both the winding wheel and the drive shaft are equipped with drive wheels, and the two drive wheels are connected by a belt.

[0012] Furthermore, a bracket is installed on the vertical plate, and the motor is mounted on the bracket.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention utilizes the cooperation of gears and rack plates to enable the inner cylinder to move stably up and down, effectively preventing the inner cylinder from rotating, thus enabling efficient and stable pile foundation pouring work. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a novel pile foundation casting duct described in Embodiment 1 of this utility model.

[0016] Figure 2 This is a schematic diagram of the inner cylinder of a novel pile foundation casting duct as described in Embodiment 1 of this utility model.

[0017] Figure 3 This is a schematic diagram of a gear in a novel pile foundation casting chute as described in Embodiment 1 of this utility model.

[0018] Figure 4 This is a schematic diagram of the vertical pipe in a novel pile foundation casting duct as described in Embodiment 2 of this utility model.

[0019] Figure 5 This is a side view of a novel pile foundation casting duct as described in Embodiment 2 of this utility model.

[0020] In the above attached figures: 1 outer cylinder, 2 inner cylinder, 3 connecting block, 4 steel rope, 5 rack plate, 6 feed hopper, 7 vertical plate, 8 motor, 9 winding wheel, 10 conical guide ring, 11 mounting column, 12 gear, 13 transmission wheel, 14 belt, 15 transmission shaft. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0022] like Figures 1-3 As shown in the figure, this utility model embodiment proposes a novel pile foundation casting duct, comprising:

[0023] The outer cylinder 1 and the inner cylinder 2 are coaxially located inside the outer cylinder 1. Four gears 12 are rotatably connected inside the outer cylinder 1. Coaxial and rotatably connected mounting columns 11 are provided through the gears 12. The mounting columns 11 are fixed to the inner wall of the outer cylinder 1 to support the gears 12. Four rack plates 5 are fixed to the outer wall of the inner cylinder 2. The gears 12 are meshed with the rack plates 5.

[0024] Since gear 12 meshes with rack plate 5, the inner cylinder 2 can be guided, so that the inner cylinder 2 can move stably up and down inside the outer cylinder 1 without rotating.

[0025] The inner cylinder 2 has a conical guide ring 10 fixed at its upper end. The conical guide ring 10 slides against the inner wall of the outer cylinder 1. In this way, the conical guide ring 10 blocks the gear 12 and other components, preventing the concrete from contacting the gear 12 and the rack plate 5, which would affect subsequent meshing. In addition, the conical guide ring 10 also guides the concrete, allowing it to enter the inner cylinder 2. When the conical guide ring 10 abuts against the gear 12, it can limit the inner cylinder 2, preventing it from detaching from the outer cylinder 1.

[0026] The inner cylinder 2 can be fitted with a guide tube by referring to the connection method between the inner cylinder 2 and the outer cylinder 1, which can increase the guide length of the entire device.

[0027] The lifting mechanism includes a feed hopper 6 installed on the upper end of the outer cylinder 1. Two vertical plates 7 are installed at the bottom of the feed hopper 6, and motors 8 are installed on both vertical plates 7. A winding wheel 9 is fixed to the output end of the motor 8, and a steel rope 4 is wound on the winding wheel 9. The steel rope 4 is fixedly connected to the lower end of the inner cylinder 2. A connecting block 3 is fixed to the bottom of the outer wall of the inner cylinder 2, and the steel rope 4 is fixedly connected to the connecting block 3. When the motor 8 works, it drives the winding wheel 9 to rotate, thereby realizing the winding and unwinding of the steel rope 4. When the steel rope 4 is placed, it can be moved downward by the gravity of the inner cylinder 2. When the steel rope 4 is wound up, it can realize the upward movement of the inner cylinder 2.

[0028] During use, simply place the inner cylinder 2 inside the pile foundation casing, and use the motor 8 to lift the inner cylinder 2 upwards. The concrete falls into the outer cylinder 1 through the feed hopper 6 and is then discharged through the inner cylinder 2, thereby achieving the purpose of pouring the pile foundation. Example 2

[0029] Reference Figure 4-5 The difference between this embodiment and embodiment 1 is that in this embodiment, a rotatable transmission shaft 15 is provided through the two vertical plates 7. The transmission shaft 15 is connected to two winding wheels 9 through a transmission mechanism. The output end of the motor 8 is coaxially fixedly connected to one of the winding wheels 9. Transmission wheels 13 are installed on both the winding wheel 9 and the transmission shaft 15. The two transmission wheels 13 are connected by a belt 14. A bracket is installed on the vertical plate 7, and the motor 8 is installed on the bracket.

[0030] Because the falling concrete exerts different pressures on the inner wall of the inner cylinder 2, the loads on the two motors 8 in Example 1 are different, which may result in different rotation speeds, thus making the upward pulling force of the inner cylinder 2 unstable.

[0031] Therefore, in this embodiment, the transmission wheel 13, belt 14 and transmission shaft 15 are used to achieve synchronous and stable rotation of two winding wheels 9 through a motor 8, thereby enabling the inner cylinder 2 to move stably.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel pile foundation casting duct, characterized in that, include: The outer cylinder (1) and the inner cylinder (2) are coaxially located inside the outer cylinder (1); four gears (12) are rotatably connected inside the outer cylinder (1); four rack plates (5) are fixed on the outer wall of the inner cylinder (2); the gears (12) are meshed with the rack plates (5); Lifting mechanism; The lifting mechanism includes a feeding hopper (6) installed on the upper end of the outer cylinder (1). Two vertical plates (7) are installed at the bottom of the feeding hopper (6). A motor (8) is installed on each of the two vertical plates (7). A winding wheel (9) is fixed to the output end of the motor (8). A steel rope (4) is wound on the winding wheel (9). The steel rope (4) is fixedly connected to the lower end of the inner cylinder (2).

2. The novel pile foundation casting duct according to claim 1, characterized in that, in: The upper end of the inner cylinder (2) is fixed with a conical guide ring (10), which slides against the inner wall of the outer cylinder (1).

3. The novel pile foundation casting duct according to claim 1, characterized in that, in: A connecting block (3) is fixed to the bottom of the outer wall of the inner cylinder (2), and the steel rope (4) is fixedly connected to the connecting block (3).

4. The novel pile foundation casting duct according to claim 1, characterized in that, in: A rotating drive shaft (15) is provided through the two vertical plates (7). The drive shaft (15) is connected to two winding wheels (9) through a transmission mechanism. The output end of the motor (8) is coaxially fixedly connected to one of the winding wheels (9).

5. A novel pile foundation casting duct according to claim 4, characterized in that, in: Both the winding wheel (9) and the drive shaft (15) are equipped with drive wheels (13), and the two drive wheels (13) are connected by a belt (14).

6. A novel pile foundation casting duct according to claim 4, characterized in that, in: A bracket is installed on the vertical plate (7), and the motor (8) is installed on the bracket.

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