Slag removing device for rotary excavating pile bottom of cast-in-place pile

Abstract

The utility model discloses a rotary excavating pile bottom slag removing device for a cast-in-place pile, and belongs to the technical field of building construction. A rotary excavating pile bottom slag removing device for a cast-in-place pile comprises a supporting plate arranged on the ground; the telescopic rod is fixedly arranged on the bottom surface of the supporting plate; the storage barrel is fixedly connected with the telescopic rod; the conveying barrel is fixedly arranged in the storage barrel, the bottom end of the conveying barrel penetrates through the bottom face of the storage barrel in a penetrating mode, and a feeding port and a discharging port are formed in the conveying barrel; the screw rod is rotationally arranged in the conveying cylinder; the slag pumping pipe is communicated with the storage barrel; and the crushing assembly is arranged below the discharging opening so as to receive and crush the muck discharged from the discharging opening. The slag removing device has the beneficial effect that large slag at the bottom of the rotary excavating pile of the cast-in-place pile can be conveniently removed.

Description

Technical Field

[0001] This application relates to the technical field of construction, and more particularly, to a device for cleaning the bottom slag of a bored cast-in-place pile by rotary excavation. Background Art

[0002] The bored cast-in-place pile is a commonly used deep foundation form, mainly applied to the foundation construction of structures such as buildings, bridges, and wharves. Different from precast piles, the bored cast-in-place pile is directly poured with concrete or other materials in the holes at the construction site, and the pile foundation is formed after solidification and hardening. The bored cast-in-place pile has good adaptability and can pass through various soil layers to reach deeper stable soil layers or rock layers to provide sufficient bearing capacity. After the hole of the bored cast-in-place pile is dug, there will be some residual soil and slag at the bottom of the pile. Before pouring, the soil and slag at the bottom of the pile need to be removed to avoid affecting the bearing capacity of the pile foundation.

[0003] In the prior art, water is injected into the pile hole, and the water and soil and slag are mixed and then the mud mixture is pumped out of the pile hole by a pumping device to achieve slag cleaning; using this method will cause some large pieces of soil and slag at the bottom of the pile to not be completely pumped out.

[0004] In view of this, the purpose of the present utility model is to provide a device for cleaning the bottom slag of a bored cast-in-place pile by rotary excavation, which is convenient for removing large pieces of soil and slag at the bottom of the pile. Content of the Utility Model

[0005] The content part of this application is used to briefly introduce the concepts, which will be described in detail in the subsequent specific implementation part. The content part of this application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0006] In order to solve the technical problems mentioned in the above background art part, some embodiments of this application provide a device for cleaning the bottom slag of a bored cast-in-place pile by rotary excavation, including:

[0007] A support plate, arranged on the ground;

[0008] A telescopic rod, fixedly arranged on the bottom surface of the support plate;

[0009] A storage bucket, fixedly connected to the telescopic rod;

[0010] A conveying cylinder, fixedly arranged in the storage bucket, the bottom end of the conveying cylinder penetrates through the bottom surface of the storage bucket, and a feed inlet and a discharge outlet are arranged on the conveying cylinder;

[0011] A screw rod, rotatably arranged in the conveying cylinder;

[0012] A slag extraction pipe, communicated with the storage bucket;

[0013] A crushing assembly, arranged below the discharge outlet to receive and crush the soil and slag discharged from the discharge outlet.

[0014] During the working process, the storage bucket is extended into the pile hole, and the support plate is placed at the opening of the pile hole to support the storage bucket; the telescopic rod is extended to push the storage bucket above the bottom muck of the pile and make the feed port of the transfer cylinder extend into the muddy water mixture of muck and water; the screw rod rotates continuously to convey the muddy water mixture at the bottom of the pile upward and discharge it from the discharge port; due to the arrangement of the crushing component, the crushing component can crush the large pieces of muck discharged from the discharge port and discharge them into the storage bucket, so that the slag suction pipe can pump the muddy water mixture out of the pile hole.

[0015] Further, the crushing component includes a crushing box fixedly arranged in the storage bucket and a crushing roller rotatably arranged in the crushing box. The crushing box is arranged below the discharge port and has upper and lower openings.

[0016] Further, a filter plate is fixedly arranged in the storage bucket. The filter plate is arranged above the slag suction pipe and below the crushing box.

[0017] Further, the bottom end of the screw rod is fixedly connected with a stirring member.

[0018] Further, the screw rod includes a rotating shaft and spiral blades fixedly arranged on the rotating shaft. The bottom surface of the rotating shaft is partially concave to form a threaded hole. A threaded rod is fixedly arranged on the stirring member, and the threaded rod is in threaded cooperation with the threaded hole.

[0019] Further, a driving box is fixedly arranged on the crushing box. A driving gear and a driven gear are rotatably arranged in the driving box. The driving gear and the driven gear are meshed and connected;

[0020] There are two crushing rollers. One of the crushing rollers is fixedly connected with the driving gear, and the other crushing roller is fixedly connected with the driven gear;

[0021] A crushing motor is fixedly arranged in the driving box. The output shaft of the crushing motor is fixedly connected with the driving gear.

[0022] Further, a slag outlet is arranged on the storage bucket.

[0023] Further, support legs are fixedly arranged on the bottom surface of the support plate. A support screw rod is telescopically arranged in the support leg, and the support screw rod is in threaded connection with the support leg.

[0024] The beneficial effects of the present application are as follows:

[0025] First, by arranging the screw rod to convey the muck at the bottom of the pile upward, large pieces of muck at the bottom of the pile can be conveyed; by arranging the crushing component, the crushing component receives the muck discharged from the discharge port on the transfer cylinder and crushes the large pieces of muck and discharges them into the storage bucket; the slag suction pipe in the storage bucket can pump out the crushed muddy water and discharge it outside the pile hole; the problem that large pieces of muck at the bottom of the pile are not easy to discharge is solved.

[0026] Second, by setting up a filter plate, the incompletely crushed muck is filtered on the filter plate to prevent the muck from blocking the slag suction pipe.

[0027] Third, the stirring member can stir and mix the muck and water at the bottom of the pile to form a muddy water mixture, which is convenient for the slag suction pipe to extract the muck.

[0028] Fourth, the setting of the support screw facilitates adjusting the support plate to a horizontal state on the pitted ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, purposes, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation of this application.

[0030] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and components are not necessarily drawn to scale.

[0031] In the drawings:

[0032] Figure 1 is the working schematic diagram of the embodiment of this application;

[0033] Figure 2 is the overall schematic diagram of the embodiment of this application;

[0034] Figure 3 is the partial structural cross-sectional schematic diagram of the embodiment of this application, mainly showing the overall internal structure of the storage cylinder;

[0035] Figure 4 is the partial structural cross-sectional schematic diagram of the embodiment of this application, mainly showing the structure of the crushing box;

[0036] Figure 5 is the partial structural schematic diagram of the embodiment of this application, mainly showing the connection structure between the driving gear and the driven gear;

[0037] Figure 6 is the partial structural installation exploded view of the embodiment of this application, mainly showing the installation structure between the stirring member and the rotating shaft.

[0038] Reference numerals:

[0039] 1, support plate; 101, support leg; 102, support screw; 103, support foot;

[0040] 2, telescopic rod;

[0041] 3, storage barrel; 301, slag outlet;

[0042] 4. Conveyor tube; 401. Feed inlet; 402. Discharge outlet; 403. Screw rod; 403a. Rotating shaft; 403b. Screw blade; 404. Driving motor

[0043] 5. Crushing assembly; 501. Crushing box; 502. Crushing roller; 504. Driving box; 505. Driving gear; 506. Driven gear; 507. Crushing motor

[0044] 6. Slag extraction pipe

[0045] 7. Filter plate

[0046] 8. Stirring part; 801. Threaded hole; 802. Threaded rod Detailed implementation mode

[0047] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0048] In addition, it should be noted that for the convenience of description, only parts related to the invention are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0049] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.

[0050] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly stated in the context, it should be understood as "one or more".

[0051] The present disclosure will be described in detail below with reference to the drawings and in combination with embodiments.

[0052] A bottom slag cleaning device for a bored cast-in-place pile includes a support plate 1 placed on the ground at the hole opening of the pile hole. An expansion rod 2 is fixedly arranged on the bottom surface of the support plate 1, and the expansion rod 2 can extend the slag cleaning device into the bottom of the pile to facilitate the cleaning of the muck at the bottom of the pile.

[0053] The bottom slag cleaning device of the bored cast-in-place pile also includes a storage barrel 3, and the storage barrel 3 is fixedly connected to the telescopic rod 2; a transfer cylinder 4 is fixedly arranged in the storage barrel 3, and the bottom end of the transfer cylinder 4 passes through the bottom surface of the storage barrel 3 and is arranged outside the storage barrel 3. The bottom end opening of the transfer cylinder 4 forms a feed port 401, and two discharge ports 402 are arranged at the top of the transfer cylinder 4; a screw rod 403 is rotatably arranged in the transfer cylinder 4, and the screw rod 403 can convey the muck and muddy water entering the screw rod 403 from the feed port 401 upward and discharge them from the discharge ports 402.

[0054] A crushing assembly 5 is fixedly arranged in the transfer cylinder 4. There are two crushing assemblies 5 and they are arranged below the two discharge ports 402 to receive the muck and muddy water discharged from the discharge ports 402 and crush the muck. The crushed muck is discharged into the storage barrel 3. A slag extraction pipe 6 is also fixedly installed on the storage barrel 3. One end of the slag extraction pipe 6 is communicated with the storage barrel 3, and the other end is arranged outside the pile hole to pump out the muddy water mixture of the muck and water in the storage barrel 3 and discharge it outside the pile hole.

[0055] Specifically, the crushing assembly 5 includes a crushing box 501 fixedly arranged in the storage barrel 3 and two crushing rollers 502 rotatably arranged in the crushing box 501. The crushing box 501 has an up-and-down open structure. The muck enters the crushing box 501 from above and is discharged into the storage barrel 3 through the lower opening after being crushed by the crushing rollers 502.

[0056] A driving box 504 is fixedly arranged on the crushing box 501. A driving gear 505 and a driven gear 506 are rotatably arranged in the driving box 504, and the driven gear 506 is meshed and connected with the driving gear 505; one of the two crushing rollers 502 is fixedly connected and coaxially arranged with the driving gear 505, and the other crushing roller 502 is fixedly connected and coaxially arranged with the driven gear 506; a crushing motor 507 is fixedly installed in the driving box 504, and the output shaft of the crushing motor 507 is fixedly connected with the driving gear 505 to drive the driving gear 505 to rotate; since the driving gear 505 is meshed with the driven gear 506, the driving gear 505 can drive the driven gear 506 to rotate relative to it, so that the two crushing rollers 502 rotate relative to each other to crush the muck.

[0057] Furthermore, a filter plate 7 is fixedly arranged in the storage barrel 3. The filter plate 7 is arranged above the slag extraction pipe 6 and below the crushing box 501. The filter plate 7 can filter the muck that is not completely crushed in the crushing box 501 above the filter plate 7 to prevent large pieces of muck from blocking the slag extraction pipe 6.

[0058] The screw rod 403 includes a rotating shaft 403a and screw blades 403b fixedly arranged on the rotating shaft 403a. A driving motor 404 is fixedly installed on the top surface of the storage barrel 3. The output shaft of the driving motor 404 is fixedly connected to the rotating shaft 403a to drive the rotating shaft 403a to rotate. A slag discharge port 301 is formed through a part of the top surface of the storage barrel 3. Through the slag discharge port 301, large pieces of muck on the filter plate 7 can be cleared out of the storage barrel 3.

[0059] Furthermore, a stirring member 8 is fixedly arranged at the bottom of the rotating shaft 403a. Specifically, a threaded hole 801 is formed by concaving a part of the bottom surface of the rotating shaft 403a. A threaded rod 802 is fixedly arranged on the stirring member 8. The stirring member 8 is fixed at the bottom of the rotating shaft 403a by means of threaded connection between the threaded hole 801 and the threaded rod 802. The stirring member 8 can mix the muck and water at the bottom of the pile evenly, so that the screw blades 403b can convey the evenly mixed muddy water mixture upward. The stirring member 8 can be replaced with different types. When there is more muddy water at the bottom of the pile, a frame-type stirrer can be used. When it is necessary to scrape up the silt at the bottom of the pile, a paddle-type stirrer can be used.

[0060] Further, four support legs 101 are fixedly installed at positions near the four corners of the bottom surface of the support plate 1. A support screw 102 is telescopically arranged in the support leg 101. A foot 103 is fixedly arranged at the bottom surface of the support screw 102. The support screw 102 is threadedly connected to the support leg 101. The telescoping of the support screw 102 is controlled by screwing the support screw 102 into and out of the support leg 101. The arrangement of the support screw 102 can keep the support plate 1 in a horizontal state on the pitted ground.

[0061] It should be noted that when using this device to clean the bottom of the cast-in-place pile, the position of the support plate 1 can be moved, thereby changing the position where the screw rod 403 conveys the muck, so that the muck at multiple positions at the bottom of the pile can be cleared out, reducing the dead angle of bottom pile muck cleaning.

[0062] The specific working principle is as follows:

[0063] Place the support plate 1 on the ground at the hole opening of the pile hole, and adjust the height of the support screw 102 to keep the support plate 1 in a horizontal state. The telescopic rod 2 extends the storage barrel 3 into the pile hole until the transfer barrel 4 extends into the muck. Start the drive motor 404, and the rotating shaft 403a and the spiral blade 403b can rotate and convey the muck and water entering from the feed port 401 upward. During the rotation of the rotating shaft 403a, the stirring member 8 is driven to stir, and the muck and water are stirred into a mud-water mixture for later slag pumping. The mud-water mixture is discharged from the discharge port 402 into the crushing box 501, and after being crushed by the crushing roller 502, it is discharged into the storage barrel 3. The filter plate 7 can block the large pieces of muck that are not completely crushed, and the crushed mud-water mixture can be pumped out by the slag pumping pipe 6. When the muck at the bottom of the pile is completely cleared, take out the storage barrel 3, and the large pieces of muck on the filter plate 7 can be manually cleared through the slag outlet 301.

[0064] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A slag removal device for a bored pile bottom, comprising: A support plate (1) is arranged on the ground; A telescopic rod (2) fixedly arranged on the bottom surface of the support plate (1); Features: The cast-in-place pile rotary excavation pile bottom slag cleaning device also includes: A storage bucket (3) fixedly connected to the telescopic rod (2); A conveying cylinder (4) is fixedly arranged in the storage barrel (3), the bottom end of the conveying cylinder (4) is inserted through the bottom surface of the storage barrel (3), and the conveying cylinder (4) is provided with a feed port (401) and a discharge port (402); A screw rod (403) is rotatably disposed in the conveying cylinder (4); A slag extraction pipe (6) connected to the storage bucket (3); A crushing assembly (5) is arranged below the discharge port (402) to receive and crush the debris discharged from the discharge port (402).

2. The slag cleaning device for the bottom of a bored pile according to claim 1 is characterized by: The pulverizing assembly (5) comprises a pulverizing box (501) fixedly arranged in the storage barrel (3) and a crushing roller (502) rotatably arranged in the pulverizing box (501); the pulverizing box (501) is arranged below the discharge port (402), and the pulverizing box (501) is opened at the top and the bottom.

3. The slag removal device for the bottom of a bored pile according to claim 2 is characterized by: A filter plate (7) is fixedly arranged in the storage barrel (3), and the filter plate (7) is arranged above the slag extraction pipe (6) and below the crushing box (501).

4. The slag removal device for the bottom of a bored pile according to claim 1, characterized in that: The bottom end of the spiral rod (403) is fixedly connected to the stirring member (8).

5. The slag removal device for the bottom of a bored pile according to claim 4 is characterized by: The spiral rod (403) comprises a rotating shaft (403a) and a spiral blade (403b) fixedly arranged on the rotating shaft (403a); the bottom surface portion of the rotating shaft (403a) is concave to form a threaded hole (801); a threaded rod (802) is fixedly arranged on the stirring member (8); and the threaded rod (802) is threadedly matched with the threaded hole (801).

6. The slag removal device for the bottom of a bored pile according to claim 2, characterized in that: A driving box (504) is fixedly arranged on the crushing box (501), a driving gear (505) and a driven gear (506) are rotatably arranged in the driving box (504), and the driving gear (505) and the driven gear (506) are meshed and connected; Two crushing rollers (502) are provided, one of which is fixedly connected to the driving gear (505), and the other crushing roller (502) is fixedly connected to the driven gear (506); A crushing motor (507) is fixedly arranged in the driving box (504), and an output shaft of the crushing motor (507) is fixedly connected to the driving gear (505).

7. The slag removal device for the bottom of a bored pile according to claim 1, characterized in that: The storage barrel (3) is provided with a slag outlet (301).

8. The slag removal device for the bottom of a bored pile according to claim 1, characterized in that: A support leg (101) is fixedly arranged on the bottom surface of the support plate (1), a support screw rod (102) is telescopically arranged inside the support leg (101), and the support screw rod (102) is threadedly connected to the support leg (101).

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