Cast-in-situ bored pile drill bit convenient to maintain

Abstract

The utility model discloses a cast-in-situ bored pile drill bit convenient to maintain, and belongs to the technical field of cast-in-situ pile drill bits. The drill bit comprises a drill bit body, a connecting column is arranged at the top of the drill bit body, grooves are formed in the two sides of the connecting column, and fixing devices are arranged in the grooves. The fixing device comprises two inserting rods, inserting holes are formed in the side edge of the drill bit body, and the connecting columns are assembled with the inserting holes of the drill bit body through the inserting rods. The drill bit body is quickly mounted and dismounted through the fixing device, construction efficiency is improved, in the dismounting and mounting process, the positioning piece is matched with the positioning groove to generate positioning and limiting effects, stability of connection between the connecting column and the drill bit body is improved, in the working process of the drill bit body, the second push plate is integrally hidden in the containing groove, and the drill bit body is prevented from being damaged. And exposure of the component in drilling construction is avoided, and the effect of protecting the local component is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bored pile drill bits, and more specifically to a bored pile drill bit which is easy to maintain. Background Art

[0002] A cast-in-place pile is a pile that is made by forming a pile hole in the foundation soil at the construction site through mechanical drilling and other means, placing a steel cage inside and pouring concrete. Depending on the hole-forming method, cast-in-place piles can be divided into several categories, such as sunken tube cast-in-place piles, bored cast-in-place piles and excavated cast-in-place piles.

[0003] In the prior art, the drill bit of bored piles is prone to collision with hard objects during use, thus causing damage to the drill bit. Workers are required to manually reassemble the drill bit before continuing construction. However, the installation structure of the drill bit is complicated and difficult to install and disassemble, which greatly prolongs the assembly and disassembly time of the drill bit, resulting in low construction efficiency and increased construction costs. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a bored pile drill bit that is easy to maintain. The utility model achieves the effect of facilitating the installation and disassembly of the drill bit body by the fixing device. When the drill bit body is damaged, the staff can quickly replace the drill bit body, thereby improving the construction efficiency. During the disassembly and assembly process, the positioning piece cooperates with the positioning groove to produce the positioning and limiting effect, thereby improving the stability of the connection between the connecting column and the drill bit body. During the operation of the drill bit body, the second push plate is completely hidden in the placement groove to avoid being exposed during the drilling construction, thereby achieving the protection effect of local components.

[0006] 2. Technical solution

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0008] The utility model discloses a bored pile drill bit which is easy to maintain, comprising a drill bit body, a connecting column is arranged on the top of the drill bit body, grooves are arranged on both sides of the connecting column, and a fixing device is arranged in the groove;

[0009] The fixing device comprises two insertion rods, which are respectively slidably inserted into the grooves on both sides of the connecting column;

[0010] The side of the drill body is provided with a plug hole, and the connecting column is assembled with the plug hole of the drill body through an insert rod;

[0011] One end of the insertion rod is fixedly connected to a spring, and the end of the spring away from the insertion rod is fixedly connected to the inner wall of the groove. The inner ring of the spring is provided with a telescopic rod, and the two ends of the telescopic rod are respectively connected to the insertion rod and the inner wall of the groove;

[0012] The top of the insertion rod is fixedly connected with a connecting plate, a first push plate is arranged on the plate surface of the connecting plate, one end of the first push plate is fixed to the connecting plate, the other end of the first push plate is rotatably connected with a second push plate, and one end of the second push plate is fixedly connected with a handle.

[0013] Furthermore, the cross section of the insertion rod is trapezoidal, and the two insertion rods are centrally symmetrically arranged.

[0014] Furthermore, the insertion rod slides relative to the groove.

[0015] Furthermore, the insertion hole is adapted to the longitudinal cross-sectional dimensions of the insertion rod.

[0016] Furthermore, the connecting column is movably connected to the first push plate.

[0017] Furthermore, the surface of the handle is provided with anti-slip grooves.

[0018] Furthermore, positioning pieces are fixedly connected to both sides of the connecting column, and correspondingly, a positioning groove is provided on the drill body, and the size of the positioning piece is matched with the size of the positioning groove.

[0019] Furthermore, a linkage device is provided on the upper surface of the second push plate, and the linkage device includes a card plate, which is slidably assembled on the upper surface of the second push plate. The upper surfaces of the second push plate and the first push plate are both provided with card slots, and the card plate slides along the card slots.

[0020] Furthermore, a pull plate is fixedly connected to the top of the clamping plate, and the surface of the pull plate is provided with anti-slip grooves.

[0021] Furthermore, a placement groove is provided on one side of the connecting column, the size of the placement groove is larger than the size of the second push plate, and sliding limit grooves are also provided on both sides of the connecting column. A sliding limit plate is slidably connected in the sliding limit groove, and the sliding limit plate is located on the outside of the placement groove.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0024] The utility model achieves the effect of facilitating the workers to install and disassemble the drill body through the fixing device. When the drill body is damaged, the workers can quickly replace the drill body, thereby improving the construction efficiency. During the disassembly and assembly process, the positioning part cooperates with the positioning groove to produce the positioning and limiting effect, thereby improving the stability of the connection between the connecting column and the drill body. During the operation of the drill body, the second push plate is completely hidden in the placement groove to avoid being exposed during the drilling construction, thereby achieving the protection effect of local components. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the connecting column of the utility model.

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the drill body of the utility model.

[0028] Figure 4 It is a cross-sectional view of the connecting column of the utility model.

[0029] Figure 5 For this utility model Figure 4 Enlarged view of point A.

[0030] Figure 6 For this utility model Figure 4 Enlarged view of point B.

[0031] In the figure: 1. drill body; 2. connecting column; 3. fixing device; 31. plug rod; 32. groove; 33. spring; 34. socket; 35. connecting plate; 36. first push plate; 37. second push plate; 38. handle; 39. telescopic rod; 310. positioning member; 311. positioning groove; 4. linkage device; 41. clamping plate; 42. clamping groove; 43. placement groove; 44. pull plate; 45. sliding limit plate; 46. sliding limit groove. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0033] Example 1

[0034] from Figure 1-6 It can be seen that the bored pile drill bit of this embodiment, which is easy to maintain, comprises a drill body 1, a connecting column 2 is arranged on the top of the drill body 1, grooves 32 are opened on both sides of the connecting column 2, and a fixing device 3 is arranged in the groove 32;

[0035] The fixing device 3 includes two plug rods 31, the cross section of the plug rod 31 is trapezoidal, the two plug rods 31 are centrally symmetrically arranged, the two plug rods 31 are slidably inserted into the grooves 32 on both sides of the connecting column 2, and the plug rods 31 slide relative to the grooves 32;

[0036] The side of the drill body 1 is provided with a plug hole 34, which is adapted to the longitudinal cross-sectional size of the plug rod 31, and the connecting column 2 is assembled with the plug hole 34 of the drill body 1 through the plug rod 31;

[0037] One end of the plug rod 31 is fixedly connected to a spring 33, and one end of the spring 33 away from the plug rod 31 is fixedly connected to the inner wall of the groove 32. The inner ring of the spring 33 is provided with a telescopic rod 39, and the two ends of the telescopic rod 39 are respectively connected to the plug rod 31 and the inner wall of the groove 32;

[0038] The telescopic rod 39 is provided to limit the moving direction of the insertion rod 31, thereby improving the stability of the movement of the insertion rod 31;

[0039] A connecting plate 35 is fixedly connected to the top of the insertion rod 31, a first push plate 36 is provided on the plate surface of the connecting plate 35, the connecting column 2 is movably connected to the first push plate 36, one end of the first push plate 36 is fixed to the connecting plate 35, the other end of the first push plate 36 is rotatably connected to the second push plate 37, one end of the second push plate 37 is fixedly connected to a handle 38, and the surface of the handle 38 is provided with anti-slip grooves.

[0040] By providing the handle 38, it is convenient for the staff to move the second push plate 37, which brings convenience to the staff;

[0041] When the drill body 1 needs to be installed, the drill body 1 is brought close to the connecting column 2, the inner wall of the drill body 1 squeezes the inclined surface of the plug rod 31, the plug rod 31 moves toward the inside of the groove 32, and the spring 33 contracts. When the insertion hole 34 of the drill body 1 moves to the position of the plug rod 31, the plug rod 31 is inserted into the insertion hole 34 of the drill body 1 under the action of the restoring elastic force of the spring 33, thereby achieving the effect of fixing the drill body 1;

[0042] When the drill body 1 needs to be disassembled, the second push plate 37 and the first push plate 36 are pushed. The second push plate 37 and the first push plate 36 move with the connecting plate 35 and the insertion rod 31 toward the inner direction of the groove 32, and the insertion rod 31 moves out of the insertion hole 34. Finally, the drill body 1 is pulled out. The fixing device 3 is used to facilitate the staff to install and disassemble the drill body 1. When the drill body 1 is damaged, the staff can quickly replace the drill body 1, thereby improving the construction efficiency.

[0043] Both sides of the connecting column 2 are fixedly connected with a positioning piece 310. Correspondingly, a positioning groove 311 is provided on the drill body 1. The size of the positioning piece 310 matches the size of the positioning groove 311. The positioning piece 310 cooperates with the positioning groove 311 to produce a positioning and limiting effect. By inserting the positioning piece 310 into the positioning groove 311, the stability of the connection between the connecting column 2 and the drill body 1 is improved.

[0044] A linkage device 4 is provided on the upper surface of the second push plate 37 , and the linkage device 4 includes a card plate 41 slidably assembled on the upper surface of the second push plate 37 . A card slot 42 is provided on the upper surfaces of the second push plate 37 and the first push plate 36 , and the card plate 41 slides along the card slot 42 .

[0045] The top of the card plate 41 is fixedly connected with a pull plate 44, and the surface of the pull plate 44 is provided with anti-slip grooves. By setting the pull plate 44, it is convenient for the staff to move the card plate 41, which brings convenience to the staff.

[0046] A placement groove 43 is provided on one side of the connecting column 2, and the size of the placement groove 43 is larger than the size of the second push plate 37. Sliding limit grooves 46 are also provided on both sides of the connecting column 2. A sliding limit plate 45 is slidably connected in the sliding limit groove 46, and the sliding limit plate 45 is located outside the placement groove 43. After the second push plate 37 is moved into the placement groove 43, the sliding limit plate 45 is slid downward, and the sliding limit plate 45 clamps the second push plate 37, thereby achieving the effect of fixing the second push plate 37. At the same time, the second push plate 37 is completely hidden in the placement groove 43 to avoid being exposed during drilling construction, thereby achieving the effect of protecting local components;

[0047] When it is necessary to use the second push plate 37 to drive the first push plate 36 to move, the second push plate 37 is first rotated to a position parallel to the first push plate 36, and the clamping plate 41 is moved. The clamping plate 41 moves from the clamping slot 42 of the second push plate 37 to the clamping slot 42 of the first push plate 36, and the clamping plate 41 is clamped between the first push plate 36 and the second push plate 37, so that the second push plate 37 cannot rotate. At this time, the second push plate 37 is pushed, and the second push plate 37 moves with the first push plate 36, the connecting plate 35 and the insertion rod 31, so that the insertion rod 31 is removed from the insertion hole 34, thereby achieving the effect of disassembling the drill body 1. When the second push plate 37 is not needed, the second push plate 37 is rotated to move the second push plate 37 to the placement slot 43, and the effect of hiding the second push plate 37 is achieved through the linkage device 4.

[0048] Working principle: when the drill body 1 needs to be installed, the drill body 1 is moved close to the connecting column 2, and the positioning piece 310 of the connecting column 2 is inserted into the positioning groove 311, which improves the stability of the connection between the connecting column 2 and the drill body 1. The inner wall of the drill body 1 squeezes the inclined surface of the insertion rod 31, and the insertion rod 31 moves toward the inside of the groove 32, and the spring 33 and the telescopic rod 39 shrink. When the insertion hole 34 of the drill body 1 moves to the position of the insertion rod 31, the insertion rod 31 is inserted into the insertion hole 34 of the drill body 1 under the action of the restoring elastic force of the spring 33, thereby achieving the effect of fixing the drill body 1. When the drill body 1 needs to be disassembled, the handle 38 is moved first, and the handle 38 rotates the second push plate 37 to a position parallel to the first push plate 36, and the pull plate 44 on the clamping plate 41 is moved. The pull plate 44 moves the clamping plate 41 from the clamping groove 42 of the second push plate 37 to the clamping groove 42 of the first push plate 36, and the clamping plate 41 is clamped in the first The second push plate 37 is fixed to the position where the second push plate 37 is located.

[0049] The utility model achieves the effect of facilitating the workers to install and disassemble the drill body 1 through the fixing device 3. When the drill body 1 is damaged, the workers can quickly replace the drill body 1, thereby improving the construction efficiency. During the disassembly and assembly process, the positioning member 310 cooperates with the positioning groove 311 to produce the positioning and limiting effects, thereby improving the stability of the connection between the connecting column 2 and the drill body 1. During the operation of the drill body 1, the second push plate 37 is completely hidden in the placement groove 43 to avoid being exposed during the drilling construction, thereby achieving the protection effect of local components.

[0050] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A bored pile drill bit that is easy to maintain, comprising a drill bit body (1), characterized in that: A connecting column (2) is arranged on the top of the drill body (1), grooves (32) are provided on both sides of the connecting column (2), and a fixing device (3) is arranged in the groove (32); The fixing device (3) comprises two insertion rods (31), and the two insertion rods (31) are respectively slidably inserted into the grooves (32) on both sides of the connecting column (2); The side of the drill body (1) is provided with an insertion hole (34), and the connecting column (2) is assembled with the insertion hole (34) of the drill body (1) through an insertion rod (31); One end of the insertion rod (31) is fixedly connected to a spring (33), and one end of the spring (33) away from the insertion rod (31) is fixedly connected to the inner wall of the groove (32). The inner ring of the spring (33) is provided with a telescopic rod (39), and the two ends of the telescopic rod (39) are respectively connected to the insertion rod (31) and the inner wall of the groove (32); The top of the insertion rod (31) is fixedly connected to a connecting plate (35), a first push plate (36) is arranged on the plate surface of the connecting plate (35), one end of the first push plate (36) is fixed to the connecting plate (35), the other end of the first push plate (36) is rotatably connected to a second push plate (37), and one end of the second push plate (37) is fixedly connected to a handle (38).

2. The bored pile drill bit easy to maintain according to claim 1, characterized in that: The cross section of the insertion rod (31) is trapezoidal, and the two insertion rods (31) are centrally symmetrically arranged.

3. The bored pile drill bit easy to maintain according to claim 1, characterized in that: The insertion rod (31) slides relative to the groove (32).

4. The bored pile drill bit easy to maintain according to claim 1, characterized in that: The insertion hole (34) is adapted to the longitudinal section size of the insertion rod (31).

5. The bored pile drill bit easy to maintain according to claim 1, characterized in that: The connecting column (2) is movably connected to the first push plate (36).

6. The bored pile drill bit easy to maintain according to claim 1, characterized in that: The surface of the handle (38) is provided with anti-slip grooves.

7. The bored pile drill bit easy to maintain according to claim 1, characterized in that: Positioning pieces (310) are fixedly connected to both sides of the connecting column (2), and correspondingly, a positioning groove (311) is provided on the drill body (1), and the size of the positioning piece (310) is matched with the size of the positioning groove (311).

8. The bored pile drill bit easy to maintain according to claim 1, characterized in that: The upper surface of the second push plate (37) is provided with a linkage device (4), and the linkage device (4) includes a card plate (41). The card plate (41) is slidably assembled on the upper surface of the second push plate (37). The upper surfaces of the second push plate (37) and the first push plate (36) are both provided with a card groove (42), and the card plate (41) slides along the card groove (42).

9. The bored pile drill bit easy to maintain according to claim 8, characterized in that: A pull plate (44) is fixedly connected to the top of the clamping plate (41), and the surface of the pull plate (44) is provided with anti-slip grooves.

10. The bored pile drill bit easy to maintain according to claim 8, characterized in that: A placement groove (43) is provided on one side of the connecting column (2), and the size of the placement groove (43) is larger than the size of the second push plate (37). Sliding limit grooves (46) are also provided on both sides of the connecting column (2), and a sliding limit plate (45) is slidably connected in the sliding limit groove (46), and the sliding limit plate (45) is located on the outside of the placement groove (43).

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