Cast-in-place pile slag removal device

Abstract

The utility model relates to the technical field of cast-in-place pile construction, and discloses a cast-in-place pile slag removal device which comprises a lifting rod. A crushing and stirring assembly is arranged at the bottom end of the lifting rod, and the crushing and stirring assembly comprises a mounting disc which is arranged at the bottom end of the lifting rod; the driving motor is mounted at the top of the mounting disc; the crushing shaft is rotationally connected to the bottom of the mounting disc and is fixedly connected with an output shaft of the driving motor; the crushing blades are fixedly connected to the outer side wall of the crushing shaft; the jet head is arranged at the bottom of the mounting disc; the pulse air pumping assembly forms violent disturbance of hole bottom slurry and sediment through intermittent high-pressure air flow jetting, sediment hardening is prevented, fine particle sediment can be effectively suspended, rapid deslagging is achieved in cooperation with the suction assembly, the device combines three technologies of mechanical crushing, air flow disturbance and negative pressure suction, a three-dimensional slag removal mode is formed, and the device is suitable for large-scale popularization and application. Compared with a single hole cleaning process, the sediment cleaning rate can be greatly increased.

Description

Technical Field

[0001] This utility model relates to the field of cast-in-place pile construction technology, specifically a slag removal device for cast-in-place piles. Background Technology

[0002] A cast-in-place pile borehole refers to a load-bearing structure formed by drilling a hole in the ground and then pouring steel bars and concrete into the hole. The cleaning of the borehole for cast-in-place piles refers to removing soil, sand, gravel, and other impurities from the borehole during the drilling process. This ensures the quality and stability of the cast-in-place pile and improves its overall quality. Borehole cleaning for cast-in-place piles is divided into primary cleaning and secondary cleaning. Secondary cleaning is the step of removing gravel and other impurities deposited at the bottom of the pile after the steel cage is installed.

[0003] For example, Chinese utility model patent CN219262317U proposes a slag removal device for bored piles, including a bored pile and a drill rod located inside the bored pile, a support platform placed on the ground, a through groove provided on the support platform, a positioning cylinder coaxially threaded inside the through groove and coaxial with the bored pile, the bottom end of the positioning cylinder extending into the inside of the bored pile, a positioning plate coaxially and vertically slidingly connected inside the positioning cylinder, a drive component threaded to the bottom of the drill rod at the top of the positioning plate, a clearance groove coaxially provided on the positioning plate, the output end of the drive component passing through the clearance groove and coaxially provided with a driven shaft, a helical blade provided on the outside of the driven shaft, a fixing groove located outside the drive component on the positioning plate, a slag extraction pipe coaxially passing through the fixing groove and located above the helical blade, the top end of the slag extraction pipe being connected to a slag extraction component.

[0004] In existing technologies, spiral blades and vacuum pumps are used to lift and clean up gravel. However, cleaning is done by suction alone, which makes it difficult for the gravel to spread evenly, affecting cleaning efficiency. Furthermore, larger gravel at the bottom is also difficult to clean. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a slag removal device for cast-in-place piles, which has the advantage of significantly improving the slag removal rate. It solves the problems that when cleaning is done by suction alone, the gravel is not easily dispersed evenly, affecting the cleaning efficiency, and the larger gravel at the bottom is also difficult to clean.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a slag removal device for cast-in-place piles, comprising a lifting rod;

[0009] The bottom end of the lifting rod is provided with a crushing and stirring assembly, which includes a mounting plate disposed at the bottom end of the lifting rod; a drive motor mounted on the top of the mounting plate; a crushing shaft rotatably connected to the bottom of the mounting plate and fixedly connected to the output shaft of the drive motor; crushing blades fixedly connected to the outer side wall of the crushing shaft; an air jet head disposed at the bottom of the mounting plate; and a suction head disposed at the bottom of the mounting plate.

[0010] A pulse pump assembly is connected to the top of the jet head;

[0011] The top of the suction head is connected to a suction assembly, which includes a liquid storage tank; a liquid pump fixedly connected to the inlet end of the liquid storage tank; and a liquid suction pipe disposed at the inlet end of the liquid pump, with its bottom end connected to the top of the suction head.

[0012] Preferably, the pulverizing blades are provided in three sets.

[0013] Preferably, the crushing and stirring assembly further includes a protective cover disposed on the outside of the drive motor.

[0014] Preferably, the pulse pump assembly includes an air storage tank; an air compressor disposed on the top of the air storage tank, with its outlet end connected to the air inlet end of the air storage tank; a pulse valve disposed on the outlet end; and a pump pipe fixedly connected to the outlet end of the pulse valve, with its bottom end connected to the top end of the jet head.

[0015] Preferably, the suction assembly further includes a filter screen disposed inside the liquid storage tank; and a drain pipe disposed at the liquid outlet end of the liquid storage tank.

[0016] Preferably, the filter screen has a mesh size of eighty mesh.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a slag removal device for cast-in-place piles, which has the following beneficial effects:

[0019] 1. This slag removal device for cast-in-place piles incorporates a crushing and mixing component, a pulse pumping component, and a suction component. The crushing and mixing component, through the rotation of three sets of crushing blades, mechanically crushes large pieces of gravel at the bottom of the hole. Simultaneously, the blades agitate the gravel, causing it to spread evenly and preventing local accumulation, thus improving slag removal efficiency. The pulse pumping component, through intermittent high-pressure airflow, creates intense disturbance between the mud and sediment at the bottom of the hole, preventing sediment from caking and effectively suspending fine particles of sediment. Combined with the suction component, it achieves rapid slag discharge. This device combines mechanical crushing, airflow disturbance, and negative pressure suction technologies to form a three-dimensional slag removal mode, which can significantly improve the sediment removal rate compared to a single hole cleaning process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the crushing and stirring assembly in this utility model;

[0022] Figure 3 This is a schematic diagram of the pulse pump air assembly in this utility model;

[0023] Figure 4 This is a schematic diagram of the suction component in this utility model.

[0024] In the picture:

[0025] 10. Lifting boom;

[0026] 20. Crushing and mixing assembly; 21. Mounting plate; 22. Drive motor; 23. Crushing shaft; 24. Crushing blades; 25. Jet nozzle; 26. Suction head; 27. Protective cover;

[0027] 30. Pulse pump assembly; 31. Air tank; 32. Air compressor; 33. Pulse valve; 34. Pump pipe;

[0028] 40. Suction assembly; 41. Liquid storage tank; 42. Liquid pump; 43. Liquid suction pipe; 44. Filter screen; 45. Drain pipe. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0030] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0033] In related technologies, spiral blades and vacuum pumps are used to lift and clean up the gravel. However, if only suction is used for cleaning, the gravel is not easily spread evenly, which affects the cleaning efficiency. In addition, larger gravel at the bottom is also difficult to clean.

[0034] To address some of the problems in related technologies, this application provides a slag removal device for cast-in-place piles. This device comprises a crushing and mixing assembly, a pulse pump assembly, and a suction assembly. The crushing and mixing assembly, through the rotation of three sets of crushing blades, mechanically crushes large pieces of gravel at the bottom of the hole. Simultaneously, the blades agitate the gravel, causing it to spread evenly and preventing localized accumulation, thus improving slag removal efficiency. The pulse pump assembly, through intermittent high-pressure airflow, creates intense disturbance between the mud and sediment at the bottom of the hole, preventing sediment caking and effectively suspending fine particles of sediment. Combined with the suction assembly, this enables rapid slag discharge. This device integrates mechanical crushing, airflow disturbance, and negative pressure suction technologies to form a three-dimensional slag removal mode, significantly improving the sediment removal rate compared to a single hole cleaning process.

[0035] This application is described below with reference to the accompanying drawings and specific embodiments:

[0036] Combination Figures 1-4 This application provides a slag removal device for cast-in-place piles, including a lifting rod 10;

[0037] The device is lowered to the bottom of the pile hole using the lifting rod 10;

[0038] The bottom end of the lifting rod 10 is provided with a crushing and stirring assembly 20. The crushing and stirring assembly 20 includes a mounting plate 21, which is located at the bottom end of the lifting rod 10; a drive motor 22, which is mounted on the top of the mounting plate 21; a crushing shaft 23, which is rotatably connected to the bottom of the mounting plate 21 and fixedly connected to the output shaft of the drive motor 22; crushing blades 24, which are fixedly connected to the outer side wall of the crushing shaft 23; an air jet head 25, which is located at the bottom of the mounting plate 21; and a suction head 26, which is located at the bottom of the mounting plate 21.

[0039] When the crushing and mixing assembly 20 moves to the bottom of the pile, the drive motor 22 is started, which drives the crushing shaft 23 to rotate, causing the crushing blades 24 on the outside of the crushing shaft 23 to rotate. This causes the crushing shaft 23 and the crushing blades 24 to rotate at high speed, crushing large particles of sediment and stirring the bottom space at the same time, so that the sediment is crushed and stirred.

[0040] The top of the jet head 25 is connected to a pulse pump assembly 30, which includes an air tank 31; an air compressor 32, which is located on the top of the air tank 31 and whose outlet end is connected to the inlet end of the air tank 31; a pulse valve 33, which is located at the outlet end; and a pump pipe 34, which is fixedly connected to the outlet end of the pulse valve 33 and whose bottom end is connected to the top of the jet head 25.

[0041] While the crushing and mixing process is underway, the air compressor 32 is activated to pressurize the air tank 31. The pulse valve 33 releases high-pressure airflow at a set frequency, which is then ejected from the jet nozzle 25 through the pump pipe 34. The intermittent airflow forms a vortex, stirring up the sediment at the bottom of the hole and preventing secondary deposition.

[0042] The top of the suction head 26 is connected to a suction assembly 40, which includes a liquid storage tank 41; a liquid pump 42, which is fixedly connected to the liquid inlet of the liquid storage tank 41; and a liquid suction pipe 43, which is located at the liquid inlet of the liquid pump 42 and whose bottom end is connected to the top of the suction head 26.

[0043] While pumping air, the liquid pump 42 is started. After the liquid pump 42 is started, the fluid of mixed mud and debris enters the liquid pumping pipe 43 through the suction head 26 and is transported to the liquid storage tank 41.

[0044] In some embodiments, the crushing blades 24 are provided in three sets. Through the rotation of the three sets of crushing blades, large pieces of gravel at the bottom of the hole can be mechanically crushed.

[0045] In some embodiments, the crushing and mixing assembly 20 further includes a protective cover 27 disposed on the outside of the drive motor 22, and the protective cover 27 disposed on the outside of the drive motor 22 prevents mud from entering and causing damage to the equipment.

[0046] In some embodiments, the suction assembly 40 further includes a filter screen 44 disposed inside the storage tank 41; a drain pipe 45 is disposed at the outlet end of the storage tank 41. The suction assembly 40 is equipped with an 80-mesh filter screen 44, which can separate sediment particles in the mud. The purified mud is reinjected into the pile hole through the drain pipe, reducing mud waste and environmental pollution, and meeting the requirements of green construction.

[0047] In some embodiments, the filter screen 44 has a mesh count of eighty meshes.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0049] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slag removal device for cast-in-place piles, comprising a lifting rod (10). Its features are: The bottom end of the lifting rod (10) is provided with a crushing and stirring assembly (20), which includes: The mounting plate (21) is located at the bottom end of the lifting rod (10); A drive motor (22) is mounted on the top of the mounting plate (21); The crushing shaft (23) is rotatably connected to the bottom of the mounting plate (21) and fixedly connected to the output shaft of the drive motor (22); Crushing blades (24) are fixedly connected to the outer wall of the crushing shaft (23); An air jet (25) is disposed at the bottom of the mounting plate (21); A suction head (26) is disposed at the bottom of the mounting plate (21); The top of the jet head (25) is connected to a pulse pump assembly (30). The suction head (26) is connected to a suction assembly (40) at its top end, the suction assembly (40) comprising: Liquid storage tank (41); A liquid pump (42) is fixedly connected to the inlet end of the liquid storage tank (41); The liquid extraction tube (43) is located at the inlet end of the liquid extraction pump (42), and its bottom end is connected to the top end of the suction head (26).

2. The slag removal device for cast-in-place piles according to claim 1, characterized in that: The crushing blades (24) are provided in three sets.

3. The slag removal device for cast-in-place piles according to claim 1, characterized in that: The grinding and stirring assembly (20) also includes: A protective cover (27) is provided on the outside of the drive motor (22).

4. The slag removal device for cast-in-place piles according to claim 1, characterized in that: The pulse pump assembly (30) includes: Gas storage tank (31); An air compressor (32) is installed on the top of the air storage tank (31), and its outlet end is connected to the air inlet end of the air storage tank (31). A pulse valve (33) is provided at the outlet end; The air pump pipe (34) is fixedly connected to the air outlet of the pulse valve (33), and its bottom end is connected to the top end of the jet head (25).

5. A slag removal device for cast-in-place piles according to claim 1, characterized in that: The suction assembly (40) further includes: A filter screen (44) is disposed inside the liquid storage tank (41); The drain pipe (45) is located at the outlet end of the storage tank (41).

6. A slag removal device for cast-in-place piles according to claim 5, characterized in that: The filter screen (44) has a mesh size of eighty.

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