Scraper for removing concrete iron on inner wall of pile casing of pile foundation

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a pile foundation casing inner wall concrete iron removing scraper which comprises a rotary drilling rig drill bit, scraper seats are fixedly arranged at the two ends of the two sides of the outer surface of the rotary drilling rig drill bit, clamping grooves are formed in the front faces of the scraper seats, and the scraper seats are connected with iron scraper bodies in a clamped mode through the clamping grooves. According to the iron scraper for removing concrete on the inner wall of the pile casing of the pile foundation, the scraper seats and the iron scraper bodies are fixedly arranged at the two ends of the two sides of the outer surface of the drilling rig drill bit, and when the drilling rig drill bit rotates, the scraper seats and the iron scraper bodies are driven to work, so that concrete residues on the inner wall of the pile casing can be quickly and safely removed, and the working efficiency is improved; and the difficulty and danger of manual cleaning are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a scraper for removing concrete iron from the inner wall of a pile foundation casing. Background Art

[0002] In construction projects, casing is one of the commonly used construction equipment, used for bored pile construction operations, made of steel, cylindrical, generally a steel casing, generally used as a preventive fixation in construction.

[0003] During the construction process, some concrete often remains on the inner wall of the casing. These residues not only affect the use effect of the casing, but may also cause troubles to subsequent construction. The traditional manual cleaning method is not only time-consuming and labor-intensive, increasing the labor intensity of the staff, but also has certain risks. Therefore, it is necessary to provide a scraper for removing concrete from the inner wall of the pile foundation casing to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a scraper for removing concrete iron from the inner wall of a pile foundation casing, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: an iron scraper for removing concrete from the inner wall of a pile foundation casing, comprising a rotary drilling rig drill bit, wherein scraper seats are fixedly arranged at both ends of the outer surface of the rotary drilling rig drill bit, a slot is provided on the front side of the scraper seat, the scraper seat is clamped with an iron scraper body through the slot, and the blade of the iron scraper body is designed to be an arc structure.

[0006] Preferably, a plurality of slots are provided at equal distances on the inner wall of the slot, and an insert block cooperating with the slots is fixedly provided on the back of the iron scraper body.

[0007] Preferably, the scraper seat is welded to the drill bit of the rotary drilling rig, a pin hole is opened inside the scraper seat, and a positioning pin is provided on the scraper seat through the pin hole.

[0008] Preferably, a limiting insertion hole corresponding to the pin hole is provided on the insert block, and the limiting insertion hole is used for allowing the lower end of the positioning pin to pass through.

[0009] Preferably, a knob is fixedly provided on the upper end of the positioning pin, and an external thread groove is provided on the lower end of the outer surface of the positioning pin.

[0010] Preferably, an internal thread cooperating with the external thread groove is provided at the lower end of the inner wall of the pin hole, and the iron scraper body and the positioning pin are both detachable.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. In addition to the concrete iron scraper on the inner wall of the pile foundation casing, a scraper seat and an iron scraper body are fixedly arranged at both ends of the outer surface of the drill bit of the drilling rig on both sides, and an insert block is fixedly arranged on the back of the iron scraper body. When the insert block is inserted into the slot, the iron scraper body can be further limited to avoid shaking of the iron scraper body when it rotates. When the drill bit of the drilling rig rotates, the scraper seat and the iron scraper body are driven to work, so that the concrete residue on the inner wall of the casing can be quickly and safely removed, the work efficiency is improved, and the difficulty and danger of manual cleaning are reduced.

[0013] 2. The inner wall of the pile foundation casing is free of concrete iron scrapers. When the positioning pin is inserted, the positioning pin can be driven to rotate synchronously by turning the knob, and then the lower end of the positioning pin is threadedly connected to the scraper seat through the external thread groove, ensuring the stability of the positioning pin and the stability of the iron scraper body after installation. When the iron scraper body is damaged due to long-term use, the knob can be turned in the opposite direction, and then the positioning pin can be pulled out upwards, and then the iron scraper body can be disassembled and removed for maintenance or replacement. The operation is simple, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the iron scraper for removing concrete from the inner wall of the pile foundation casing of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the scraper seat of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the iron scraper body of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the positioning pin of the utility model;

[0018] Figure 5 The utility model is a schematic diagram of the connection between the scraper for removing concrete from the inner wall of the pile foundation casing and the drill bit of the rotary drilling rig.

[0019] In the figure: 1. Drill bit of rotary drilling rig; 2. Scraper seat; 201. Card slot; 202. Slot; 203. Pin hole; 3. Iron scraper body; 301. Insert block; 302. Limiting hole; 4. Internal thread; 5. Positioning pin; 501. Knob; 502. External thread groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 A scraper for removing concrete from the inner wall of a pile foundation casing comprises a rotary drilling rig drill bit 1. Scraper seats 2 are fixedly arranged at both ends of the outer surface of the rotary drilling rig drill bit 1. A slot 201 is provided on the front of the scraper seat 2. The scraper seat 2 is connected to an iron scraper body 3 through the slot 201. The blade of the iron scraper body 3 is designed to be an arc structure.

[0022] Among them, a number of slots 202 are equidistantly provided on the inner wall of the slot 201, and an insert block 301 that cooperates with the slot 202 is fixedly provided on the back of the iron scraper body 3. The scraper seat 2 is welded to the rotary drilling rig drill bit 1. By welding the scraper seat 2 to the rotary drilling rig drill bit 1, the stability of the scraper seat 2 is effectively guaranteed. By fixing the insert block 301 on the back of the iron scraper body 3, when the insert block 301 is inserted into the slot 202, the iron scraper body 3 can be further limited to avoid shaking of the iron scraper body 3 during rotation.

[0023] Among them; a pin hole 203 is opened inside the scraper seat 2, and a positioning pin 5 is arranged on the scraper seat 2 through the pin hole 203. A limiting hole 302 corresponding to the pin hole 203 is opened on the plug block 301, and the limiting hole 302 is used for the lower end of the positioning pin 5 to pass through. When the plug block 301 is inserted into the slot 202, the positioning pin 5 is inserted into the pin hole 203. At this time, the positioning pin 5 also passes through the limiting hole 302, which can effectively prevent the iron scraper body 3 from detaching from the scraper seat 2, and ensure the stability of the iron scraper body 3 after installation.

[0024] Among them, a knob 501 is fixedly set on the upper end of the locating pin 5, an external thread groove 502 is opened at the lower end of the outer surface of the locating pin 5, and an internal thread 4 cooperating with the external thread groove 502 is opened at the lower end of the inner wall of the pin hole 203. The iron scraper body 3 and the locating pin 5 are both detachable. When the locating pin 5 is inserted, the locating pin 5 can be driven to rotate synchronously by rotating the knob 501, and then the lower end of the locating pin 5 is threadedly connected with the scraper seat 2 through the external thread groove 502 to ensure the stability of the locating pin 5. When the iron scraper body 3 is damaged due to long-term use, the knob 501 is rotated in the opposite direction, and then the locating pin 5 can be pulled out upwards, and then the iron scraper body 3 can be disassembled and removed for maintenance or replacement. The operation is simple and saves time and effort.

[0025] Working principle: by welding the scraper seat 2 to the rotary drilling rig drill bit 1, the stability of the scraper seat 2 is effectively guaranteed; by fixing an insert block 301 on the back of the iron scraper body 3, when the insert block 301 is inserted into the slot 202, it can further limit the iron scraper body 3 to prevent the iron scraper body 3 from shaking during rotation; when the insert block 301 is inserted into the slot 202, the positioning pin 5 is inserted into the pin hole 203, and at this time, the positioning pin 5 also passes through the limiting plug hole 302, thereby effectively preventing the iron scraper body 3 from being separated from the scraper seat 2, thereby ensuring the stability of the iron scraper body 3 after installation.

[0026] Furthermore, when the locating pin 5 is inserted, the locating pin 5 can be driven to rotate synchronously by turning the knob 501, and then the lower end of the locating pin 5 is threadedly connected to the scraper seat 2 through the external thread groove 502, thereby ensuring the stability of the locating pin 5. When removing concrete residues on the inner wall of the casing, the scraper is extended into the casing, and the scraper is driven to rotate or move by operating the rotary drilling rig to make the scraper blade contact with the inner wall of the casing, so that the concrete residues on the inner wall of the casing can be quickly and safely removed, thereby improving work efficiency and reducing the difficulty and danger of manual cleaning. When the iron scraper body 3 is damaged due to long-term use, the knob 501 can be turned in the opposite direction, and then the locating pin 5 can be pulled out upwards, and then the iron scraper body 3 can be disassembled and removed for maintenance or replacement, which is simple to operate and saves time and effort.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scraper for removing concrete iron from the inner wall of a pile foundation casing, comprising a rotary drilling rig drill bit (1), characterized in that: A scraper seat (2) is fixedly provided at both ends of the outer surface of the rotary drilling rig drill bit (1); a clamping groove (201) is provided on the front of the scraper seat (2); an iron scraper body (3) is clamped to the scraper seat (2) via the clamping groove (201); and a blade portion of the iron scraper body (3) is designed to be an arc-shaped structure.

2. A scraper for removing concrete iron from the inner wall of a pile foundation casing according to claim 1, characterized in that: A plurality of slots (202) are provided at equal distances on the inner wall of the clamping slot (201), and an insert block (301) cooperating with the slots (202) is fixedly provided on the back of the iron scraper body (3).

3. A scraper for removing concrete iron from the inner wall of a pile foundation casing according to claim 2, characterized in that: The scraper seat (2) is welded to the drill bit (1) of the rotary drilling rig, a pin hole (203) is provided inside the scraper seat (2), and a positioning pin (5) is provided on the scraper seat (2) through the pin hole (203).

4. A scraper for removing concrete iron from the inner wall of a pile foundation casing according to claim 3, characterized in that: The insert block (301) is provided with a limiting insertion hole (302) corresponding to the pin hole (203), and the limiting insertion hole (302) is used for allowing the lower end of the positioning pin (5) to pass through.

5. A scraper for removing concrete iron from the inner wall of a pile foundation casing according to claim 3, characterized in that: A knob (501) is fixedly provided on the upper end of the positioning pin (5), and an external thread groove (502) is provided on the lower end of the outer surface of the positioning pin (5).

6. A scraper for removing concrete iron from the inner wall of a pile foundation casing according to claim 5, characterized in that: An internal thread (4) that cooperates with the external thread groove (502) is formed at the lower end of the inner wall of the pin hole (203), and the iron scraper body (3) and the positioning pin (5) are both detachable.

Images