Impact drill bit capable of preventing hole deviation of pile foundation

Abstract

The utility model relates to the technical field of percussion bits, and discloses a pile foundation hole deviation prevention percussion bit which comprises a vehicle body, a jacking mechanism is arranged on the top of the vehicle body, a pile driving body is arranged on the jacking mechanism, and an installation mechanism is arranged on the pile driving body. The mounting mechanism comprises a connecting block, the connecting block is arranged on the outer side of the piling main body, two pull rings are slidably connected to the inner side of the connecting block, and second springs are slidably connected to the outer sides of the pull rings; a percussion bit is inserted, pull rings on the two sides are pulled out, when two second springs are subjected to outward pulling force, two limiting blocks move in the opposite directions, when the top of the percussion bit is attached to the bottom of a shock pad, the two pull rings are loosened, the two limiting blocks move in the opposite directions, and the two limiting blocks move in the opposite directions; and therefore, the two openings of the percussion bit on the inner side are clamped, installation can be carried out without a professional tool, the flow during installation is reduced, and the installation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of impact drill bits, in particular to an impact drill bit for preventing pile foundation deviation holes. Background Art

[0002] In the current construction field, pile foundation engineering is an important part of infrastructure construction, and its quality is directly related to the stability and safety of the entire project. In the process of pile foundation construction, drilling is one of the key steps, and the performance of the impact drill bit as a drilling tool directly affects the drilling efficiency and accuracy. At present, the impact drill bits widely used in the market are mostly installed on the drilling rig by mechanical locking or threaded connection. This installation method has the following obvious disadvantages:

[0003] Complex installation: Special tools are required to complete the installation, which not only increases the operation time, but also increases the difficulty and cost of operation; Low efficiency: When the impact drill bit is urgently repaired or replaced, the construction progress is affected due to the need to find and prepare tools; Therefore, we propose an anti-pile foundation offset hole impact drill bit to solve this problem.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the utility model, therefore, it may include prior art that is not known to ordinary technicians in this field. Utility Model Content

[0005] In order to solve the problem that special tools are needed to complete the installation, which not only increases the operation time but also increases the operation difficulty and cost, the utility model provides an anti-pile foundation offset hole impact drill bit.

[0006] The utility model provides an anti-pile foundation offset hole impact drill bit adopts the following technical solution:

[0007] A pile foundation offset hole impact drill bit comprises a body, a jacking mechanism is arranged on the top of the body, a pile driving body is arranged on the jacking mechanism, and a mounting mechanism is arranged on the pile driving body; the mounting mechanism comprises a connecting block, the connecting block is arranged on the outside of the pile driving body, two pull rings are slidably connected to the inner side of the connecting block, the outer sides of the pull rings are slidably connected to a second spring, and one end of the pull ring close to the inner side of the connecting block is fixedly connected to a limiting block.

[0008] Preferably, a first spring is fixedly connected to the inner side of the connecting block, an end of the first spring away from the connecting block is fixedly connected to a shock-absorbing pad, and the shock-absorbing pad is slidably connected to the inner side of the connecting block.

[0009] Preferably, an impact drill bit is installed at one end of the shock-absorbing pad away from the first spring, two openings are provided on the outer side of the impact drill bit, and the openings match the outer side of the limit block. A side of the impact drill bit away from the first spring is fixedly connected with a plurality of guide steel teeth.

[0010] Preferably, the lifting mechanism comprises a first support frame, and the first support frame is fixedly connected to the top of the vehicle body.

[0011] Preferably, a second support frame is fixedly connected to the outer side of the vehicle body, and one side of the piling body is hinged to the outer side of the second support frame.

[0012] Preferably, the other side of the piling body is placed on the top of the first supporting frame, the top of the vehicle body is hinged with two cylinders, and the sides of the two cylinders away from the vehicle body are hinged to the outside of the piling body.

[0013] In summary, the utility model includes the following beneficial technical effects:

[0014] 1. When the device needs to be installed, the staff first inserts the impact drill bit into the impact drill bit and pulls out the pull rings on both sides. When the two second springs are pulled outward, the two limit blocks move toward each other. When the top of the impact drill bit fits the bottom of the shock pad, the two pull rings are released, and the two limit blocks move toward each other, thereby clamping the two openings of the impact drill bit on the inside. No professional tools are required for installation, which reduces the installation process and increases the convenience of installation.

[0015] 2. A guide steel tooth is vertically arranged at the lower end of the impact drill bit, and the guide steel teeth are arranged along the lower outer edge of the impact drill bit. It has been proved through field use that when the impact drill bit of the utility model encounters geological conditions with density deviation, the guide steel teeth can better ensure that the drilling does not have a deviation exceeding the specification requirements, thereby ensuring the construction quality. Compared with the existing device, the structure design of the utility model is reasonable and ingenious, can be temporarily processed on site, is simple to use, easy to operate, and has obvious construction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 It is a schematic structural diagram of another perspective of an embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the inner structure of the connecting block of the utility model embodiment.

[0019] Explanation of the accompanying drawings: 1. body; 2. cylinder; 3. first support frame; 4. second support frame; 5. connecting block; 6. first spring; 7. shock pad; 8. pull ring; 9. second spring; 10. limit block; 11. impact drill bit; 12. guide steel teeth. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-3 The utility model is described in further detail.

[0021] The utility model discloses an impact drill bit for preventing pile foundation deviation. Figure 1-3 , an anti-pile foundation offset hole impact drill bit, comprising a body 1, a jacking mechanism is arranged on the top of the body 1, a pile driving body is arranged on the jacking mechanism, and a mounting mechanism is arranged on the pile driving body; the mounting mechanism comprises a connecting block 5, the connecting block 5 is arranged on the outside of the pile driving body, the inner side of the connecting block 5 is slidably connected with two pull rings 8, the outer side of the pull ring 8 is slidably connected with a second spring 9, and the pull ring 8 is close to the inner end of the connecting block 5. The end of the pull ring 8 is fixedly connected to a limited block 10; by inserting the impact drill bit 11 into and pulling out the pull rings 8 on both sides outward, when the two second springs 9 are subjected to outward tension, the two limit blocks 10 move toward each other, and when the top of the impact drill bit 11 is in contact with the bottom of the shock absorbing pad 7, the two pull rings 8 are released, and the two limit blocks 10 move toward each other, so that the two openings of the inner impact drill bit 11 are clamped, and no professional tools are required for installation, which reduces the installation process and increases the convenience of installation.

[0022] Reference Figure 1-3 A first spring 6 is fixedly connected to the inner side of the connecting block 5, and a shock-absorbing pad 7 is fixedly connected to one end of the first spring 6 away from the connecting block 5. The shock-absorbing pad 7 is slidably connected to the inner side of the connecting block 5. The first spring 6 and the shock-absorbing pad 7 can provide a certain buffer for the impact force generated during the impact, thereby reducing the direct effect on the connecting block 5 and the impact drill bit 11 itself.

[0023] Reference Figure 1-3 An impact drill bit 11 is installed at one end of the shock-absorbing pad 7 away from the first spring 6, and two openings are arranged on the outer side of the impact drill bit 11, which match the outer side of the limit block 10, and a plurality of guide steel teeth 12 are fixedly connected to the side of the impact drill bit 11 away from the first spring 6; guide steel teeth 12 are vertically arranged at the lower end of the impact drill bit 11, and the guide steel teeth 12 are arranged along the lower outer edge of the impact drill bit 11; it has been proved through field use that the impact drill bit 11 described in the utility model can better ensure that the drilling does not exceed the deviation required by the specification through the action of the guide steel teeth 12 when encountering geological conditions with density deviation, thereby ensuring the construction quality; compared with the existing device, the utility model has a reasonable and ingenious structural design, can be temporarily processed on site, is simple to use, easy to operate, and has obvious construction effect.

[0024] Reference Figure 1-3 The jacking mechanism includes a first support frame 3, which is fixedly connected to the top of the vehicle body 1, and a second support frame 4 is fixedly connected to the outside of the vehicle body 1. One side of the piling body is hinged to the outside of the second support frame 4, and the other side of the piling body is placed on the top of the first support frame 3. Two cylinders 2 are hinged on the top of the vehicle body 1, and the two cylinders 2 are hinged to the outside of the piling body on one side away from the vehicle body 1.

[0025] The implementation principle of an anti-pile foundation offset hole impact drill bit in an embodiment of the utility model is as follows: when the device needs to be installed, the staff first inserts the impact drill bit 11 into the hole by pulling the pull rings 8 on both sides outwards, and when the two second springs 9 are subjected to outward pulling force, the two limit blocks 10 move toward each other, and when the top of the impact drill bit 11 fits with the bottom of the shock-absorbing pad 7, the two pull rings 8 are released, and the two limit blocks 10 move toward each other, thereby clamping the two openings of the inner impact drill bit 11, and no professional tools are required for installation, which reduces the installation process and increases the convenience of installation.

[0026] Finally, a few points should be explained: First, in the description of the present utility model, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0029] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An impact drill bit for preventing pile foundation deviation, comprising a body (1), characterized in that: A jacking mechanism is arranged on the top of the vehicle body (1), a pile driving body is arranged on the jacking mechanism, and a mounting mechanism is arranged on the pile driving body; The mounting mechanism comprises a connecting block (5), wherein the connecting block (5) is arranged on the outside of a piling body, wherein two pull rings (8) are slidably connected to the inside of the connecting block (5), wherein the outsides of the pull rings (8) are slidably connected to second springs (9), and an end of the pull ring (8) close to the inside of the connecting block (5) is fixedly connected to a limiting block (10).

2. The anti-pile foundation offset hole impact drill bit according to claim 1, characterized in that: A first spring (6) is fixedly connected to the inner side of the connecting block (5); an end of the first spring (6) away from the connecting block (5) is fixedly connected to a shock absorbing pad (7); and the shock absorbing pad (7) is slidably connected to the inner side of the connecting block (5).

3. The anti-pile foundation offset hole impact drill bit according to claim 2, characterized in that: An impact drill bit (11) is installed at one end of the shock absorbing pad (7) away from the first spring (6), two openings are arranged on the outer side of the impact drill bit (11), and the openings match the outer side of the limit block (10), and a plurality of guide steel teeth (12) are fixedly connected to one side of the impact drill bit (11) away from the first spring (6).

4. The anti-pile foundation offset hole impact drill bit according to claim 1, characterized in that: The lifting mechanism comprises a first support frame (3), wherein the first support frame (3) is fixedly connected to the top of the vehicle body (1).

5. The anti-pile foundation offset hole impact drill bit according to claim 1, characterized in that: A second support frame (4) is fixedly connected to the outer side of the vehicle body (1), and one side of the piling body is hinged to the outer side of the second support frame (4).

6. The impact drill bit for preventing pile foundation deviation according to claim 1, characterized in that: The other side of the piling body is placed on the top of the first support frame (3), the top of the vehicle body (1) is hinged with two cylinders (2), and the sides of the two cylinders (2) away from the vehicle body (1) are hinged to the outside of the piling body.

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