Blanking and backfilling device for reverse construction method

Abstract

The utility model provides a blanking backfilling device for a reverse building method, which comprises a stock bin and a material pipe, and at least two material ports are arranged in the stock bin; each material opening is correspondingly provided with a material pipe, and the material pipes extend to a gap between the steel pipe structure column and the drill hole and are evenly distributed in the circumferential direction of the steel pipe structure column. According to the utility model, the plurality of material ports are arranged, and the material pipes corresponding to the material ports are uniformly distributed on the steel pipe structure column, so that broken stones in gaps around the steel pipe structure column are uniformly distributed when the broken stones fall, the perpendicularity of the steel pipe structure column is facilitated, and the arrangement of the material pipes can prevent the broken stones from scattering from the stock bin, thereby ensuring the backfilling quality and improving the backfilling efficiency; the labor amount is reduced; during backfilling, an on-site excavator can be adopted for feeding from one direction, and the number of machines used for simultaneous feeding operation of multiple machines is reduced; the device can be repeatedly used, the durability is long, and the construction cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of reverse construction, in particular to a material unloading and backfilling device. Background Art

[0002] In the reverse construction method, the bottom bored cast-in-place piles are generally constructed in combination with steel tube structural columns. The steel tube structural columns are inserted as supporting columns at a position about 4m from the top of the bored piles. When the bottom pile body concrete is poured to the pile top elevation, before the concrete is injected into the cast steel tube structural column, in order to ensure the verticality of the supporting column, it is necessary to evenly backfill gravel in the gap between the steel tube structural column and the wall of the drilled hole to ensure the stability of the steel tube structural column during the subsequent construction process.

[0003] Usually, when placing and positioning the steel pipe structural column, an auxiliary tool column is connected to the hole mouth. When backfilling the steel pipe structural column with gravel, four inclined guide plates are generally installed around the tool column. The guide plates are used as slideways for gravel, and a loader is used to backfill the gap along the four guide plates. When backfilling gravel in this way, a certain height difference will be formed around the steel pipe structural column in the hole. The uneven filling formed is not conducive to the subsequent stability of the steel pipe structural column. At the same time, during the loading process, some gravel will fall on the platform or the ground, and it is necessary to manually shovel the scattered gravel into the hole. The construction process is time-consuming, labor-intensive and inefficient. Summary of the invention

[0004] Purpose of the invention: In view of the shortcomings of the prior art, a material unloading and backfilling device for reverse operation is provided, which can unload materials quickly and evenly.

[0005] Technical solution: The utility model discloses a material backfilling device for reverse operation, comprising:

[0006] A silo, wherein the silo is provided with at least two feed ports;

[0007] A material pipe is provided corresponding to each of the material ports, and the material pipes extend to the gap between the steel pipe structural column and the drill hole and are evenly distributed around the circumference of the steel pipe structural column.

[0008] Furthermore, the silo is configured to be long and narrow.

[0009] Furthermore, the silo includes two opposing first side plates and two second side plates, the first side plates are vertical, and the second side plates are inclined.

[0010] Furthermore, the inclination angle of the second side plate ranges from 110° to 130°.

[0011] Furthermore, there are two material ports, which are separated by an inclined partition.

[0012] Furthermore, two partitions are provided, and each partition extends from top to bottom into the corresponding material opening.

[0013] Furthermore, a feeding hole connected to a feeding pipe is provided at the bottom of each feeding port.

[0014] Furthermore, the inclination of each material tube is the same, and the ends of the material tubes fit the side wall of the tool column and are at a uniform height.

[0015] Furthermore, a bracket for support is provided at the bottom of the silo.

[0016] Furthermore, lifting ears are provided on both sides of the silo.

[0017] Beneficial effects: The utility model has multiple material ports, and the material pipes corresponding to each material port are evenly distributed around the steel pipe structural column, so that the gravel in the gaps around the steel pipe structural column is evenly distributed when the gravel falls, which is beneficial to the verticality of the steel pipe structural column. At the same time, the setting of the material pipe can prevent the gravel from scattering from the material bin, ensure the backfill quality, improve the backfill efficiency, and reduce the amount of labor; when backfilling, the on-site excavator can be used to load the material from one direction, reducing the number of machines used for simultaneous loading operations; the device is reusable and has a long durability, which greatly reduces the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axonometric perspective view of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 It is a top view of the utility model. DETAILED DESCRIPTION

[0021] In order to make the purpose and implementation of the present application clearer, the exemplary implementation of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, rather than all of the embodiments. It should be noted that the brief description of the terms in this application is only for the convenience of understanding the implementation described below, and is not intended to limit the implementation of the present application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0022] A material backfilling device for reverse operation, such as Figures 1 to 3As shown, it includes a silo 1 and a material pipe 2. The silo 1 is provided with at least two material ports 103 for receiving crushed stones. Each material port 103 is correspondingly provided with a material pipe 2. The material pipe 2 extends to the gap between the steel pipe structural column and the drill hole and is evenly distributed around the steel pipe structural column. Therefore, the crushed stones in each material port 103 can roll down to the gap between the structural column and the drill hole through the material pipe 2. The arrangement of the material pipe 2 ensures that the amount and position of the crushed stones falling around the structural column are balanced to avoid uneven height differences. At the same time, all the crushed stones are transported through the material pipe 2 and will not be scattered on the ground, thereby improving the backfill efficiency.

[0023] In some embodiments, the silo 1 is configured to be long and narrow. When an excavator is used to load materials at one time, multiple material ports can be used to discharge materials evenly at the same time, which is beneficial to increasing the backfill loading speed.

[0024] In some embodiments, the silo 1 includes two opposing first side panels 102 and two second side panels 101. Figure 1 As shown in , the first side plates 102 arranged on the left and right are vertical, and the second side plates 101 arranged on the front and back are inclined. Specifically, the first side plates 102 and the second side plates 101 can be made of steel plates with a thickness of 1 cm. The first side plates 102 can ensure that the crushed stones will not form excessive accumulation in the silo 1, and the second side plates 101 allow the crushed stones in the silo 1 to slide smoothly into the material pipe 2.

[0025] In some embodiments, the second side plate 101 has an inclination angle ranging from 110° to 130°. As one embodiment, the second side plate 101 has an inclination angle of 125°, so that the cross section of the silo 1 forms an inverted trapezoid with a larger top and a smaller bottom. It can be imagined that this structure can allow the crushed stones to enter the material pipe 2 more quickly along the inclined surface.

[0026] In some embodiments, there are two material ports 103 , which are separated by an inclined partition 3 , so that the gravel in the silo 1 can be divided into two parts for simultaneous backfilling.

[0027] Furthermore, two partitions 3 are provided, each extending from top to bottom into the corresponding material opening 103, so that the two material openings 103 are both funnel-shaped, further increasing the falling speed of the crushed stone, and at the same time making the crushed stone scattered along the material pipe 2 on both sides of the steel pipe structural column, preventing the crushed stone from accumulating on one side of the steel pipe structural column and affecting its verticality.

[0028] In some embodiments, a discharge hole 4 connected to the material pipe 2 is provided at the bottom of each material port 103. For quick discharge, the edge of the discharge hole 4 is nearly tangent to the side plate. The aperture of the discharge hole 4 can ensure that the gravel is not hindered in sliding through the discharge hole 4 into the material pipe 2, thereby accelerating the sliding.

[0029] In some embodiments, the end of the material tube 2 fits the side wall of the tool column, and the ends of all the material tubes 2 are at the same height. In this case, the crushed stones roll out from the end of the material tube 2. On the one hand, the crushed stones are evenly distributed around the tool column, and on the other hand, the rolling height and speed of the crushed stones are similar, so that uniform material feeding is achieved. In the case where the number of the material port 103 and the number of the material tubes 2 are both 2, the spacing between the two material feeding holes 4 is greater than the diameter of the tool column, and the connecting line of the ends of the two material tubes 2 is the radial direction of the tool column, so the material feeding position and material feeding height are symmetrical with the central axis of the tool column.

[0030] The material pipe 2 can be set vertically or tilted, without limitation; however, the tilted setting can further avoid the phenomenon of excessively fast rolling speed of the crushed stones and causing accumulation, so it is the preferred solution. It should be noted that under the premise of the tilted setting, the tilt angles of all the material pipes 2 must be consistent to ensure the uniformity of the rolling speed of the crushed stones; in order to save space, when there are two material pipes 2, the tilt direction and tilt angle of the material pipes 2 are consistent, which can be understood as two parallel material pipes 2.

[0031] Taking the tool column with a diameter of 1500 mm as an example, the tool column is exposed about 1150 mm from the positioning platform, the distance between the two material tubes 2 is 1540 mm, and the diameter of the material tube 2 is designed to be 300 mm.

[0032] In some embodiments, a support bracket 5 is provided at the bottom of the silo 1, and the function of the support bracket 5 is to support the silo 1 and ensure the stability of the material pipe 2. For example, the support bracket 5 can be welded by threaded steel bars with a diameter of 40 mm and a model of HRB400, and the material pipe 2 is welded at the same time to form a frame structure.

[0033] In some embodiments, lifting ears 6 are provided on both sides of the silo 1. When the device is lifted and transported by a lifting machine, the lifting ear 6 can be bypassed by a steel wire traction rope to lift it.

[0034] The manufacturing and use process of the above-mentioned blanking and backfilling device includes the following steps:

[0035] 1. According to the diameter of the tool column and the specific use conditions on site, the steel plates and steel bars are processed and welded to form a material feeding and backfilling device, and the structure is ensured to be stable during welding;

[0036] 2. After pouring concrete to the pile top elevation, lower the material backfilling device to the operating platform, align the end of the material pipe 2 with the gap between the tool column and the hole wall, and the two ends of the two material pipes 2 are located on the radial extension line of the tool column;

[0037] 3. After the material backfilling device is stably placed on the platform, use the excavator bucket to load the crushed stone and pour it into the middle of the silo 1 so that the amount of crushed stone in the left and right material ports 103 is roughly equal; after the excavator completes the feeding, a small amount of crushed stone is left on the auxiliary platform and is manually shoveled into the hole.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A material backfilling device for reverse operation, characterized in that: include: A silo, wherein the silo is provided with at least two feed ports; A material pipe is provided corresponding to each of the material ports, and the material pipes extend to the gap between the steel pipe structural column and the drill hole and are evenly distributed around the circumference of the steel pipe structural column.

2. The material feeding and backfilling device for reverse operation according to claim 1, characterized in that: The silo is configured to be long and narrow.

3. The material feeding and backfilling device for reverse operation according to claim 1 or 2, characterized in that: The silo includes two opposite first side plates and two second side plates, wherein the first side plates are vertical and the second side plates are inclined.

4. The material feeding and backfilling device for reverse operation according to claim 3 is characterized in that: The inclination angle of the second side plate ranges from 110° to 130°.

5. The material feeding and backfilling device for reverse operation according to claim 1, characterized in that: There are two material openings, which are separated by an inclined partition.

6. The material feeding and backfilling device for reverse operation according to claim 5, characterized in that: The partition plates are provided in two pieces, and each piece extends from top to bottom into the corresponding material opening.

7. The material feeding and backfilling device for reverse operation according to claim 1, characterized in that: The bottom of each material opening is provided with a material discharge hole connected to a material pipe.

8. The material feeding and backfilling device for reverse operation according to claim 1, characterized in that: The inclination of each material tube is the same, and the ends of the material tubes fit the side wall of the tool column and are at a uniform height.

9. The material feeding and backfilling device for reverse operation according to claim 1, characterized in that: A bracket for supporting is provided at the bottom of the silo.

10. The material feeding and backfilling device for reverse operation according to claim 1, characterized in that: Lifting ears are arranged on both sides of the silo.

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