Steel chisel extractor

Abstract

The utility model discloses a steel chisel extractor, and relates to the technical field of chisel detection. The steel chisel extractor comprises a base, an extracting rod and a clamping device, the extracting rod comprises a connecting section and an operating section connected with the first end of the connecting section, and the middle of the connecting section is hinged to the base. The clamping device comprises a clamping plate mounting base, a first clamping plate, a second clamping plate and a fastening assembly, the clamping plate mounting base is connected with the second end of the connecting section, the first end of the first clamping plate is fixedly connected with the clamping plate mounting base, and the first end of the second clamping plate is movably connected with the clamping plate mounting base, so that the second clamping plate gets close to or away from the first clamping plate on the horizontal plane; the second end of the first clamping plate is connected with the second end of the second clamping plate through a fastening assembly. By means of the lever principle, the steel chisel in the soil layer can be rapidly and efficiently pulled out on the premise that the steel chisel is not damaged, compared with the prior art, the steel chisel does not need to be hammered, the steel chisel pulling-out difficulty is lowered, the working efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The present application relates to the field of drill detection technology, and in particular to a steel drill extractor. Background Art

[0002] Drilling is a construction technology used to detect soil layers below the bottom of the foundation. It evaluates the hardness of the soil layer and possible structures within the soil layer, such as pits, ancient tombs, ancient wells, and air-raid shelters, by driving a steel drill of standard diameter vertically into the foundation soil layer and recording the number of hammer blows required during the driving process.

[0003] After the drilling is completed, the steel drill needs to be pulled out. The commonly used method is: hammer the steel drill horizontally to loosen it, and then pull it out.

[0004] However, the above operation method is only applicable to the case where the steel bar is inserted into the soil at a shallow depth. When the steel bar is inserted into the soil at a deep depth, if the steel bar is still hammered in the horizontal direction, it is difficult to loosen the steel bar, making it difficult to pull out the steel bar, and multiple hammering of the steel bar may easily damage the steel bar. Utility Model Content

[0005] The purpose of the present application is to provide a steel bar extractor to solve the problem that it is difficult to pull out the steel bar when it is deeply inserted into the soil.

[0006] The technical solution adopted by the present application to solve its technical problems is: a steel drill extractor, including a base, an extraction rod and a clamping device; the extraction rod includes a connecting section, an operating section connected to the first end of the connecting section, and the middle part of the connecting section is hinged to the base; the clamping device includes a clamping plate mounting seat, a first clamping plate, a second clamping plate and a fastening assembly, the clamping plate mounting seat is connected to the second end of the connecting section, the first end of the first clamping plate is fixedly connected to the clamping plate mounting seat, the first end of the second clamping plate is movably connected to the clamping plate mounting seat, so that the second clamping plate is close to or away from the first clamping plate in a horizontal plane, and the second end of the first clamping plate is connected to the second end of the second clamping plate through the fastening assembly.

[0007] Furthermore, the fastening assembly includes a screw and a nut, the first end of the screw is connected to the first clamping plate, and the second end of the screw passes through a through hole on the second clamping plate and is threadedly connected to the nut.

[0008] Furthermore, a pad is sleeved on the screw rod and is located between the second clamping plate and the nut.

[0009] Furthermore, the first end of the screw is rotatably connected to the first clamping plate, and the second clamping plate is provided with an opening which is connected to the through hole and is used for the screw to rotate into the through hole.

[0010] Furthermore, the base includes a horizontally arranged bottom plate and a column fixed on the bottom plate, and the middle portion of the connecting section is hinged to the column.

[0011] Furthermore, a rib plate is fixed between the base plate and the column.

[0012] Furthermore, a first ear plate is arranged on the top of the column, a second ear plate is arranged in the middle of the connecting section, and the first ear plate is rotatably connected to the second ear plate via a horizontally arranged first rotating shaft.

[0013] Furthermore, the second end of the connecting section is rotatably connected to a connecting plate via a second horizontally arranged rotating shaft, and the connecting plate is connected to the clamping plate mounting seat.

[0014] Furthermore, the connecting plate is rotatably connected to the clamping plate mounting seat via a third rotating shaft arranged vertically.

[0015] Furthermore, the extraction rod is an integrally formed structure.

[0016] Beneficial effects of this application:

[0017] The steel bar extractor provided in the embodiment of the present application utilizes the lever principle to quickly and efficiently pull out the steel bar in the soil layer without damaging the steel bar. Compared with the prior art, there is no need to hammer the steel bar, which reduces the difficulty of pulling out the steel bar, improves work efficiency, and reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of a steel drill extractor provided in an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of the structure of the clamping device;

[0021] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0022] Reference numerals:

[0023] 1- Base;

[0024] 11-bottom plate; 12-upright column; 13-rib plate; 14-first ear plate;

[0025] 2- Extraction rod;

[0026] 21-connecting section; 22-operating section; 23-second ear plate; 24-connecting plate;

[0027] 3-Clamping device;

[0028] 31- clamping plate mounting seat; 32- first clamping plate; 33- second clamping plate; 331- opening; 34- screw rod; 35- nut; 36- pad. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0030] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the embodiments and features in the embodiments of this application can be combined with each other without conflict.

[0031] In the description of the embodiments of the present application, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or is the orientation or positional relationship in which the product of the application is usually placed when in use, or is the orientation or positional relationship commonly understood by those skilled in the art. The terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, and an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements.

[0032] See also Figure 1 , Figure 2 , Figure 3 The embodiment of the present application provides a steel drill extractor, including a base 1, an extraction rod 2 and a clamping device 3; the extraction rod 2 includes a connecting section 21, an operating section 22 connected to the first end of the connecting section 21, and the middle part of the connecting section 21 is hinged to the base 1; the clamping device 3 includes a clamping plate mounting seat 31, a first clamping plate 32, a second clamping plate 33 and a fastening assembly, the clamping plate mounting seat 31 is connected to the second end of the connecting section 21, the first end of the first clamping plate 32 is fixedly connected to the clamping plate mounting seat 31, the first end of the second clamping plate 33 is movably connected to the clamping plate mounting seat 31, so that the second clamping plate 33 is close to or away from the first clamping plate 32 in a horizontal plane, and the second end of the first clamping plate 32 is connected to the second end of the second clamping plate 33 through the fastening assembly.

[0033] The process of using the steel drill extractor provided in the embodiment of the present application to pull out the steel drill in the soil layer is as follows:

[0034] The base 1 is placed near the steel chisel to be pulled out, and the steel chisel is clamped by the clamping device 3. The worker applies a downward force to the operating section 22 of the extraction rod 2, so that the connecting section 21 rotates around the hinged position with the base 1, and the operating section 22 moves downward. The second end of the connecting section 21 drives the clamping device 3 to move upward for a distance, and then the steel chisel is pulled out upward for a distance; then the clamping device 3 is controlled to release the steel chisel, and the operating section 22 is controlled to move upward. The second end of the connecting section 21 drives the clamping device 3 to move downward, and then the steel chisel is clamped by the clamping device 3 and the operating section 22 is pressed down, and the operation is repeated in sequence until the steel chisel is completely pulled out.

[0035] The process of clamping the steel chisel using the clamping device 3 provided in the embodiment of the present application is as follows:

[0036] The first clamping plate 32 and the second clamping plate 33 are respectively placed on both sides of the steel chisel, and the second clamping plate 33 is controlled to be close to the first clamping plate 32. When the first clamping plate 32 and the second clamping plate 33 are in contact with the steel chisel at the same time, the second end of the first clamping plate 32 and the second end of the second clamping plate 33 are connected together through the fastening assembly, and the first clamping plate 32 and the second clamping plate 33 are used to clamp the steel chisel at the same time. In the process of pulling the steel chisel upward, relative sliding between the steel chisel and the clamping device 3 is avoided.

[0037] The steel bar extractor provided in the embodiment of the present application utilizes the lever principle to quickly and efficiently pull out the steel bar in the soil layer without damaging the steel bar. Compared with the prior art, there is no need to hammer the steel bar, which reduces the difficulty of pulling out the steel bar, improves work efficiency, and reduces the labor intensity of workers.

[0038] In some embodiments, see Figure 2 The fastening assembly includes a screw 34 and a nut 35. The first end of the screw 34 is connected to the first clamping plate 32, and the second end of the screw 34 passes through the through hole on the second clamping plate 33 and is threadedly connected to the nut 35. When the first clamping plate 32 and the second clamping plate 33 are placed on both sides of the steel bar, the steel bar can be clamped by the first clamping plate 32 and the second clamping plate 33 by tightening the nut 35. The first clamping plate 32 and the second clamping plate 33 can be loosened by loosening the nut 35. The operation is simple and the operation efficiency is high. In order to avoid damaging the second clamping plate 33 during the process of tightening the nut 35, refer to Figure 2 A backing plate 36 is sleeved on the screw rod 34 and is located between the second clamping plate 33 and the nut 35 .

[0039] The first end of the screw rod 34 can be fixedly connected to the first clamping plate 32. Figure 2The first end of the screw rod 34 is rotatably connected to the first clamping plate 32, and the second clamping plate 33 is provided with an opening 331 which is connected to the through hole and is used for the screw rod 34 to rotate into the through hole. When the steel bar needs to be clamped, the first clamping plate 32 and the second clamping plate 33 can be placed on both sides of the steel bar respectively, and then the screw rod 34 is rotated into the through hole of the second clamping plate 33 through the opening 331, and then the nut 35 is tightened to clamp the steel bar with the first clamping plate 32 and the second clamping plate 33, thereby improving the convenience of operation.

[0040] See also Figure 1 The base 1 includes a horizontally arranged bottom plate 11 and a column 12 fixed on the bottom plate 11, and the middle part of the connecting section 21 is hinged to the column 12. Specifically, the column 12 is arranged vertically, and the lower end of the column 12 is welded to the bottom plate 11. The column 12 can be a cylindrical structure or a prismatic structure. In order to improve the connection strength between the bottom plate 11 and the column 12, a rib plate 13 is fixed between the bottom plate 11 and the column 12. The rib plate 13 is a triangular structure, which is welded to the bottom plate 11 and the column 12 respectively, and the number of the rib plates 13 can be one, two or more than two.

[0041] In some embodiments, see Figure 1 , Figure 3 A first ear plate 14 is disposed at the top of the column 12, and a second ear plate 23 is disposed at the middle of the connecting section 21. The first ear plate 14 is rotatably connected to the second ear plate 23 via a horizontally disposed first rotating shaft. Specifically, the first ear plate 14 includes two first ear plates 14, which are parallel and spaced and welded to the top of the column 12, and the second ear plate 23 is welded to the bottom of the middle of the connecting section 21. The second ear plate 23 is placed between the two first ear plates 14 and rotatably connected to the two first ear plates 14 via the first rotating shaft, so that the extraction rod 2 can rotate up and down around the first rotating shaft in a vertical plane.

[0042] See also Figure 1 The second end of the connecting section 21 is rotatably connected to a connecting plate 24 through a second rotating shaft arranged horizontally, and the connecting plate 24 is connected to a clamping plate mounting seat 31. The second rotating shaft is parallel to the first rotating shaft. The connecting plate 24 can be connected to the clamping plate mounting seat 31 by welding. In some embodiments, the connecting plate 24 is rotatably connected to the clamping plate mounting seat 31 through a third rotating shaft arranged vertically. In this way, the degree of freedom between the connecting section 21 and the clamping plate mounting seat 31 can be improved, and the situation of being stuck when the steel drill is pulled out upward can be avoided.

[0043] The connecting section 21 and the operating section 22 may be separate structures, and the two are connected by bolts. In some embodiments, the extraction rod 2 is an integrally formed structure, that is, the connecting section 21 and the operating section 22 are an integrally formed structure. For example, the extraction rod 2 is made of a whole steel pipe or a rectangular pipe.

[0044] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Based on the technical essence of the present application and within the spirit and principles of the present application, any simple modification, equivalent replacement and improvement of the above embodiments shall still fall within the protection scope of the technical solution of the present application.

Claims

1. A steel drill extractor, characterized in that: The invention comprises a base (1), an extraction rod (2) and a clamping device (3); the extraction rod (2) comprises a connecting section (21) and an operating section (22) connected to a first end of the connecting section (21); the middle part of the connecting section (21) is hinged to the base (1); The clamping device (3) comprises a clamping plate mounting seat (31), a first clamping plate (32), a second clamping plate (33) and a fastening assembly, wherein the clamping plate mounting seat (31) is connected to the second end of the connecting section (21), the first end of the first clamping plate (32) is fixedly connected to the clamping plate mounting seat (31), the first end of the second clamping plate (33) is movably connected to the clamping plate mounting seat (31), so that the second clamping plate (33) can be moved closer to or away from the first clamping plate (32) in a horizontal plane, and the second end of the first clamping plate (32) is connected to the second end of the second clamping plate (33) via the fastening assembly.

2. The steel drill extractor according to claim 1, characterized in that: The fastening assembly comprises a screw rod (34) and a nut (35), wherein a first end of the screw rod (34) is connected to the first clamping plate (32), and a second end of the screw rod (34) passes through a through hole on the second clamping plate (33) and is threadedly connected to the nut (35).

3. The steel drill extractor according to claim 2, characterized in that: The screw rod (34) is sleeved with a pad (36) located between the second clamping plate (33) and the nut (35).

4. The steel drill extractor according to claim 2, characterized in that: The first end of the screw rod (34) is rotatably connected to the first clamping plate (32), and the second clamping plate (33) is provided with an opening (331) which is connected to the through hole and is used for the screw rod (34) to rotate into the through hole.

5. The steel drill extractor according to claim 1, characterized in that: The base (1) comprises a horizontally arranged bottom plate (11) and a column (12) fixed on the bottom plate (11), and the middle portion of the connecting section (21) is hinged to the column (12).

6. The steel drill extractor according to claim 5, characterized in that: A rib plate (13) is fixed between the bottom plate (11) and the upright column (12).

7. The steel drill extractor according to claim 5, characterized in that: A first ear plate (14) is arranged at the top of the column (12), a second ear plate (23) is arranged in the middle of the connecting section (21), and the first ear plate (14) is rotatably connected to the second ear plate (23) via a horizontally arranged first rotating shaft.

8. The steel drill extractor according to claim 1, characterized in that: The second end of the connecting section (21) is rotatably connected to a connecting plate (24) via a second rotating shaft arranged horizontally, and the connecting plate (24) is connected to the clamping plate mounting seat (31).

9. The steel drill extractor according to claim 8, characterized in that: The connecting plate (24) is rotationally connected to the clamping plate mounting seat (31) via a third rotating shaft arranged vertically.

10. The steel drill extractor according to claim 1, characterized in that: The extraction rod (2) is an integrally formed structure.

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