A pre-hole positioning device for PHC pipe pile construction

Abstract

This utility model discloses a pre-hole positioning device for PHC pipe pile construction, comprising: a vehicle body, a fixed frame fixedly connected to the right end of the top of the vehicle body, a hydraulic cylinder fixedly installed on the top of the fixed frame, and a lifting frame fixedly installed at the output end of the hydraulic cylinder. This utility model, through the setting of a laser positioning light, can quickly position the drill rod between the drill position and the pre-hole drilling location during PHC pipe pile pre-hole drilling. Simultaneously, under the action of the positioning frame, it can position the drill rod around the pre-hole drilling location, preventing the drill rod from shifting due to force, thereby ensuring the accuracy of the pre-hole drilling operation. Furthermore, through the setting of a fixed box, a stepper motor, a first bevel gear, a second bevel gear, an adjusting screw, and a moving frame, the laser positioning light can be properly stored and protected after use, preventing damage from collisions with the drill rod.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a pre-hole positioning device for PHC pipe pile construction. Background Technology

[0002] PHC pipe piles are widely used in foundation construction of building engineering due to their advantages such as high strength, stable quality and fast construction speed. In the construction process of PHC pipe piles, the pre-drilling operation is an important step. It can effectively reduce the resistance when the pile enters the soil, avoid the pile tilting or damage, and improve the pile's entry accuracy and bearing capacity.

[0003] Traditional pilot hole positioning methods often rely on manual operation and simple measuring tools. Construction workers need to spend a lot of time on the construction site measuring and adjusting to align the drill rod with the target pilot hole position. This process is not only cumbersome, but also easily affected by human factors, leading to inaccurate positioning, which in turn requires repeated adjustments, further prolonging the positioning time. Utility Model Content

[0004] The purpose of this invention is to provide a pre-hole positioning device for PHC pipe pile construction, which has the advantage of being able to quickly position the drill rod and the pre-hole position during the pre-hole drilling process, thereby improving the accuracy and efficiency of the construction operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-hole positioning device for PHC pipe pile construction, comprising:

[0006] The vehicle body has a fixed frame fixedly connected to the right end of the top of the vehicle body. A hydraulic cylinder is fixedly installed on the top of the fixed frame. A lifting frame is fixedly installed at the output end of the hydraulic cylinder. A hydraulic motor is fixedly installed at the middle end of the lifting frame. A drill rod is fixedly installed at the output end of the hydraulic motor.

[0007] A fixed box is fixedly connected to the lower right side of the fixed frame. Positioning frames are fixedly connected to the right ends of both sides of the outer surface of the fixed box. A stepper motor is fixedly installed on the front surface of the fixed box. A first bevel gear is fixedly installed at the output end of the stepper motor. An adjusting screw is movably connected to the left side of the inner cavity of the fixed box through a bearing. A second bevel gear is fixedly installed at the right end of the adjusting screw. The second bevel gear meshes with the first bevel gear. A movable frame is threadedly connected to the surface of the adjusting screw. A laser positioning light is fixedly installed at the middle right side of the movable frame.

[0008] As a preferred embodiment, both ends of the right side of the movable frame are slidably connected with crossbars, and a compression spring is fixedly connected between the left end of the crossbar and the right end of the movable frame. A baffle is fixedly connected between the right sides of the two crossbars.

[0009] As a preferred embodiment, a guide slide rod is fixedly connected to the left end of the inner cavity of the fixed box and behind the adjusting screw, and the left end of the movable frame is slidably connected to the right end of the guide slide rod.

[0010] As a preferred embodiment, a support plate is movably connected to the right side of the adjusting screw via a bearing, and the front surface of the support plate is fixedly connected to the right end of the inner cavity of the fixed box.

[0011] As a preferred embodiment, a reinforcing rod is fixedly connected between the top of the outer surface of the fixed box and the lower end of the right side of the fixed frame.

[0012] As a preferred embodiment, guide frames are fixedly connected to both ends of the right side of the fixed frame, and the surface of the lifting frame is slidably connected to the surface of the guide frames.

[0013] As a preferred embodiment, the positioning frame is circular in shape.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention, through the installation of a laser positioning light, enables rapid positioning of the drill rod and the drilling position during the pre-hole drilling of PHC pipe piles. Simultaneously, the positioning frame, under its function, positions the drill rod around the drilling site, preventing displacement due to force and ensuring the accuracy of the pre-hole drilling operation. Furthermore, the inclusion of a fixed box, stepper motor, first bevel gear, second bevel gear, adjusting screw, and moving frame allows for proper storage and protection of the laser positioning light after use, preventing damage from collisions with the drill rod and facilitating its operation. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a schematic diagram of the fixing frame structure of this utility model;

[0018] Figure 3 This is a top view sectional structural diagram of the fixing box of this utility model;

[0019] Figure 4 This utility model Figure 3 A magnified view of section A in the image.

[0020] In the diagram: 1. Vehicle body; 2. Fixing frame; 3. Hydraulic cylinder; 4. Lifting frame; 5. Drill rod; 6. Guide frame; 7. Fixing box; 8. Positioning frame; 9. Reinforcing rod; 10. Hydraulic motor; 11. Stepper motor; 12. Adjusting screw; 13. Guide slide rod; 14. Moving frame; 15. Compression spring; 16. Crossbar; 17. Baffle; 18. Laser positioning light; 19. Support plate; 20. First bevel gear; 21. Second bevel gear. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] The components in this application, such as the vehicle body 1, fixing frame 2, hydraulic cylinder 3, lifting frame 4, drill rod 5, guide frame 6, fixing box 7, positioning frame 8, reinforcing rod 9, hydraulic motor 10, stepper motor 11, adjusting screw 12, guide slide rod 13, moving frame 14, pressure spring 15, crossbar 16, baffle 17, laser positioning light 18, support plate 19, first bevel gear 20 and second bevel gear 21, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0024] Example 1:

[0025] Please see Figures 1-4 As shown, this utility model provides a pre-hole positioning device for PHC pipe pile construction, comprising:

[0026] The vehicle body 1 has a fixed frame 2 fixedly connected to the right end of the top of the vehicle body 1. A hydraulic cylinder 3 is fixedly installed on the top of the fixed frame 2. A lifting frame 4 is fixedly installed at the output end of the hydraulic cylinder 3. A hydraulic motor 10 is fixedly installed at the middle end of the lifting frame 4. A drill rod 5 is fixedly installed at the output end of the hydraulic motor 10.

[0027] A fixed box 7 is fixedly connected to the lower right side of the fixed frame 2. Positioning frames 8 are fixedly connected to the right ends of both sides of the outer surface of the fixed box 7. A stepper motor 11 is fixedly installed on the front surface of the fixed box 7. A first bevel gear 20 is fixedly installed at the output end of the stepper motor 11. An adjusting screw 12 is movably connected to the left side of the inner cavity of the fixed box 7 through a bearing. A second bevel gear 21 is fixedly installed at the right end of the adjusting screw 12. The second bevel gear 21 meshes with the first bevel gear 20. A movable frame 14 is threadedly connected to the surface of the adjusting screw 12. A laser positioning light 18 is fixedly installed at the middle right end of the movable frame 14.

[0028] In this technical solution, when a pilot hole needs to be drilled during the construction of PHC pipe piles, after moving this device to the pilot hole drilling position, the laser positioning light 18 is activated, which emits infrared light from the vertical direction of the center of the positioning frame 8 towards the ground. When the position of the infrared light is at the position of the pilot hole mark, it indicates that the position is the drilling point of the drill rod 5, thus completing the rapid positioning of the drill rod 5 and the pilot hole drilling position. Subsequently, the stepper motor 11 is started by the external PLC controller, which drives the first bevel gear 20 to rotate. The rotation of the first bevel gear 20 drives the second bevel gear 21 and the adjusting screw 12 to rotate. The rotation of the adjusting screw 12 drives the moving frame. 14 and the laser positioning light 18 move to the left until the laser positioning light 18 can be moved into the fixed box 7, so that the laser positioning light 18 can be stored and protected. Then, by controlling the extension of the hydraulic cylinder 3, the lifting frame 4, the hydraulic motor 10 and the drill rod 5 can be pushed downward, so that the drill rod 5 can pass through the positioning frame 8 and contact the pilot hole drilling position on the ground. At the same time, the hydraulic motor 10 works to drive the drill rod 5 to rotate, so that the pilot hole drilling operation can be carried out on the ground. At the same time, under the action of the positioning frame 8, the drill rod 5 can be effectively positioned around it to prevent the drill rod 5 from shifting due to force and ensure the accuracy of the pilot hole drilling operation.

[0029] It should be noted that both the hydraulic cylinder 3 and the hydraulic motor 10 are existing technologies, and during operation they are connected to external driving components such as hydraulic pumps via pipelines.

[0030] Example 2:

[0031] Based on Embodiment 1, this utility model is as follows: Figure 3 As shown, both ends of the right side of the movable frame 14 are slidably connected to crossbars 16. A compression spring 15 is fixedly connected between the left end of the crossbar 16 and the right end of the movable frame 14. A baffle 17 is fixedly connected between the right sides of the two crossbars 16.

[0032] In this technical solution, through the arrangement of the crossbar 16, the pressure spring 15, and the baffle 17, as the moving frame 14 moves the laser positioning light 18 to the left and stores it in the fixed box 7, the movement of the moving frame 14 can also move the crossbar 16, the pressure spring 15, and the baffle 17, so that the baffle 17 can contact the right side of the fixed box 7. During the continuous movement of the moving frame 14, the pressure spring 15 can be compressed, so that the pressure spring 15 can exert greater pressure on the crossbar 16 and the baffle 17, so that the baffle 17 can be tightly attached to the right side of the fixed box 7, and can block and protect the opening on the right side of the fixed box 7, preventing soil from entering the interior of the fixed box 7 during operation.

[0033] Example 3:

[0034] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a guide slide rod 13 is fixedly connected to the left end of the inner cavity of the fixed box 7 and behind the adjusting screw 12. The left end of the moving frame 14 is slidably connected to the right end of the guide slide rod 13. The right side of the adjusting screw 12 is movably connected to a support plate 19 via a bearing. The front surface of the support plate 19 is fixedly connected to the right end of the inner cavity of the fixed box 7. A reinforcing rod 9 is fixedly connected between the top of the outer surface of the fixed box 7 and the lower end of the right side of the fixed frame 2. Guide frames 6 are fixedly connected to both ends of the right side of the fixed frame 2. The surface of the lifting frame 4 is slidably connected to the surface of the guide frame 6. The positioning frame 8 is annular in shape.

[0035] In this technical solution, the guide slide rod 13 is used to guide the movable frame 14, preventing the movable frame 14 from rotating during movement and limiting its movement to the right. The support plate 19 is used to support the right side of the adjusting screw 12, preventing it from tilting due to force. The reinforcing rod 9 is used to strengthen the connection between the fixed box 7 and the fixed frame 2. The guide frame 6 is used to guide the lifting frame 4, preventing it from tilting during movement.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A pre-hole positioning device for PHC pipe pile construction, characterized in that, include: The vehicle body (1) has a fixed frame (2) fixedly connected to the right end of the top of the vehicle body (1). A hydraulic cylinder (3) is fixedly installed on the top of the fixed frame (2). A lifting frame (4) is fixedly installed at the output end of the hydraulic cylinder (3). A hydraulic motor (10) is fixedly installed at the middle end of the lifting frame (4). A drill rod (5) is fixedly installed at the output end of the hydraulic motor (10). A fixed box (7) is fixedly connected to the lower right end of the fixed frame (2). A positioning frame (8) is fixedly connected to the right end of both sides of the outer surface of the fixed box (7). A stepper motor (11) is fixedly installed on the front surface of the fixed box (7). A first bevel gear (20) is fixedly installed at the output end of the stepper motor (11). An adjusting screw (12) is movably connected to the left side of the inner cavity of the fixed box (7) through a bearing. A second bevel gear (21) is fixedly installed at the right end of the adjusting screw (12). The second bevel gear (21) meshes with the first bevel gear (20). A movable frame (14) is threadedly connected to the surface of the adjusting screw (12). A laser positioning light (18) is fixedly installed at the middle right end of the movable frame (14).

2. The pre-hole positioning device for PHC pipe pile construction according to claim 1, characterized in that: Both ends of the right side of the movable frame (14) are slidably connected to crossbars (16). A pressure spring (15) is fixedly connected between the left end of the crossbar (16) and the right end of the movable frame (14). A baffle (17) is fixedly connected between the right sides of the two crossbars (16).

3. The pre-hole positioning device for PHC pipe pile construction according to claim 1, characterized in that: A guide slide rod (13) is fixedly connected to the left end of the inner cavity of the fixed box (7) and behind the adjusting screw (12), and the left end of the moving frame (14) is slidably connected to the right end of the guide slide rod (13).

4. The pre-hole positioning device for PHC pipe pile construction according to claim 1, characterized in that: The right side of the adjusting screw (12) is movably connected to a support plate (19) via a bearing, and the front surface of the support plate (19) is fixedly connected to the right end of the inner cavity of the fixed box (7).

5. A pre-hole positioning device for PHC pipe pile construction according to claim 1, characterized in that: A reinforcing rod (9) is fixedly connected between the top of the outer surface of the fixed box (7) and the lower end of the right side of the fixed frame (2).

6. A pre-hole positioning device for PHC pipe pile construction according to claim 1, characterized in that: Guide frames (6) are fixedly connected to both ends of the right side of the fixed frame (2), and the surface of the lifting frame (4) is slidably connected to the surface of the guide frame (6).

7. A pre-hole positioning device for PHC pipe pile construction according to claim 1, characterized in that: The positioning frame (8) is circular in shape.

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