Load box for steel pipe pile in pile foundation self-balancing method

Abstract

The utility model relates to the technical field of self-balancing method detection, in particular to a load box for a pile foundation self-balancing method steel pipe pile, which comprises a lower box body and a plurality of oil jacks, the upper end of the lower box body is fixedly connected with the oil jacks, and the upper ends of the oil jacks are fixedly connected with an upper box body. Adjusting structures are arranged in the upper box body and the lower box body, the inner wall of the upper box body is fixedly connected with a supporting plate, and the inner wall of the lower box body is fixedly connected with a supporting plate. Through cooperation of an adjusting structure and a worker, a straight plate is rotated to a proper position, the straight plate and an upper box body are welded, a lower box body is adjusted in a similar way, after adjustment is completed, a lower protective sleeve and a lower displacement pipe penetrate through an opening of the upper straight plate and are welded to the lower straight plate, and the size of a pile foundation can be adjusted according to needs. The device is adjusted to be in a proper size and can be suitable for pile foundations of multiple sizes, and the limitation of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of self - balancing method detection, in particular to a load cell for steel pipe piles by self - balancing method of pile foundation. Background Technique

[0002] The self - balancing method for pile foundation detection is to place a load cell made according to the pile bearing capacity parameter requirements at the bottom of the pile during the construction process, connect the pressure - applying pump and the displacement measuring device at the top of the pile. After the concrete is cured to the standard age, the bottom load cell is pressurized by the high - pressure oil pump at the top to obtain the pile tip bearing capacity and the total skin friction of the pile side.

[0003] For example, the load cell for steel pipe piles by self - balancing method of pile foundation with the publication number of "CN206888033U" has the technical effect that the concrete slurry can effectively enter between the upper panel and the lower panel, realize slurry turning and carry out the sediment, so as to form a dense pile bottom structure. However, during the production process of the pile foundation, according to different actual situations, pile foundations of different sizes need to be made. This device cannot be adjusted according to pile foundations of different sizes, and can only produce load cells of different sizes according to the size of the pile foundation, so the device has limitations. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the device cannot be adjusted according to pile foundations of different sizes and has limitations, and to propose a load cell for steel pipe piles by self - balancing method of pile foundation.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] Design a load cell for steel pipe piles by self - balancing method of pile foundation, including a lower box body and an oil - pressure jack. The upper end of the lower box body is fixedly connected with a plurality of oil - pressure jacks. The upper end of the oil - pressure jack is fixedly connected with an upper box body. Adjusting structures are arranged inside both the upper box body and the lower box body. A support plate is fixedly connected to the inner wall of the upper box body, and a support plate is fixedly connected to the inner wall of the lower box body.

[0007] Preferably, the adjusting structure includes a gear. The upper end of the gear is fixedly connected with a clamping block. The clamping block is rotationally connected to the upper box body through a bearing. The inner wall of the clamping block is fitted with a handle. A sliding groove is processed inside the gear. The sliding groove is slidably connected with the outer wall of a cylinder. The end of the cylinder is fixedly connected with a straight plate.

[0008] Preferably, the upper and lower ends of the straight plate are slidably connected with the first box body, and the straight plate is slidably connected with the support plate.

[0009] Preferably, the upper end of the lower box body is fixedly connected with a lower protective sleeve. The outer wall of the lower protective sleeve is fixedly connected with the upper box body. A lower displacement pipe is arranged inside the lower protective sleeve. The lower end of the lower displacement pipe is fixedly connected with the lower box body.

[0010] Preferably, the upper end of the upper box body is fixedly connected to the upper protective sleeve, and an upper displacement pipe is arranged inside the upper protective sleeve, and the lower end of the upper displacement pipe is fixedly connected to the upper box body.

[0011] For a load cell for a steel pipe pile using the self-balanced method for pile foundations proposed by the present utility model, the beneficial effects are as follows: Through the cooperation of the adjustment structure and the staff, place the two handles inside the grooves of the clamping blocks, and then rotate the handles on both sides simultaneously to drive the clamping blocks to rotate. The rotation of the clamping blocks drives the gears to rotate, the rotation of the gears drives the sliding grooves to rotate, the rotation of the sliding grooves drives the cylinders to move, and the movement of the cylinders drives the straight plates to move. After rotating the straight plates to the appropriate positions, weld the straight plates to the upper box body. Similarly, adjust the lower box body. After the adjustment is completed, pass the lower protective sleeve and the lower displacement pipe through the openings of the upper straight plate and weld them to the lower straight plate. The device can be adjusted to the appropriate size according to the required size of the pile foundation, and can be applicable to pile foundations of various sizes, reducing the limitations of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is Figure 1 the front view of

[0014] Figure 3 is Figure 2 the partial sectional view of

[0015] Figure 4 is Figure 3 the top view sectional view of

[0016] Figure 5 is Figure 3 the bottom view sectional view of

[0017] In the figure: 1. upper box body, 2. lower box body, 3. hydraulic jack, 4. adjustment structure, 401. handle, 402. clamping block, 403. gear, 404. sliding groove, 405. cylinder, 406. straight plate, 5. support plate, 6. lower protective sleeve, 7. lower displacement pipe, 8. upper protective sleeve, 9. upper displacement pipe. DETAILED IMPLEMENTATION MANNER

[0018] The present utility model will be further described below with reference to the accompanying drawings:

[0019] Refer to the attached Figures 1-6 :

[0020] In this embodiment, a load cell for a steel pipe pile using the self-balanced method of pile foundation includes a lower box body 2 and a hydraulic jack 3. The model of the hydraulic jack 3 is selected according to actual working requirements, as long as it meets the working needs. The upper end of the lower box body 2 is fixedly connected to a plurality of hydraulic jacks 3, and the upper end of the hydraulic jack 3 is fixedly connected to an upper box body 1. Starting the hydraulic jack 3 can drive the upper box body 1 and the lower box body 2 to move simultaneously. Adjusting structures 4 are provided inside both the upper box body 1 and the lower box body 2. A support plate 5 is fixedly connected to the inner wall of the upper box body 1, and a support plate 5 is fixedly connected to the inner wall of the lower box body 1. The upper end of the lower box body 2 is fixedly connected to a lower protective sleeve 6, the outer wall of the lower protective sleeve 6 is fixedly connected to the upper box body 1, a lower displacement pipe 7 is provided inside the lower protective sleeve 6, and the lower end of the lower displacement pipe 7 is fixedly connected to the lower box body 2. The upper end of the upper box body 1 is fixedly connected to an upper protective sleeve 8, an upper displacement pipe 9 is provided inside the upper protective sleeve 8, and the lower end of the upper displacement pipe 9 is fixedly connected to the upper box body 1.

[0021] Refer to the attached Figures 1-6 :

[0022] The adjusting structure 4 includes a gear 403. A clamping block 402 is fixedly connected to the upper end of the gear 403. The clamping block 402 is rotationally connected to the upper box body 1 through a bearing. The inner wall of the clamping block 402 is in contact with a handle 401. Rotating the handle 401 can drive the clamping block 402 to rotate, and at the same time drive the gear 403 to rotate. A chute 404 is machined inside the gear 403. Rotating the gear 403 can drive the chute 404 to rotate. The chute 404 is slidably connected to the outer wall of a cylinder 405. A straight plate 406 is fixedly connected to the end of the cylinder 405. By limiting the cylinder 405 by the chute 404, rotating the chute 404 can drive the cylinder 405 to move, and at the same time drive the straight plate 406 to move. The upper and lower ends of the straight plate 406 are slidably connected to the first box body 1, and the straight plate 406 is slidably connected to the support plate 5.

[0023] Working principle:

[0024] When the staff first welds the upper protective sleeve 8 and the upper displacement pipe 9 of appropriate length to the upper box body 1 according to the height of the pile foundation to be made.

[0025] Diameter adjustment work of the device:

[0026] Place the two handles 401 inside the grooves of the clamping block 402, and then rotate the two handles 401 simultaneously to drive the clamping block 402 to rotate. The rotation of the clamping block 402 drives the gear 403 to rotate. The rotation of the gear 403 drives the chute 404 to rotate. The rotation of the chute 404 drives the cylinder 405 to move. The movement of the cylinder 405 drives the straight plate 406 to move. After rotating the straight plate 406 to a suitable position, weld the straight plate 406 to the upper box body 1. Similarly, adjust the lower box body 2. After adjustment, pass the lower protective sleeve 6 and the lower displacement pipe 7 through the opening of the upper straight plate 406 and weld them to the lower straight plate 406.

[0027] Then the device is welded between the upper and lower steel reinforcement cages, and the clamping steel bars and guiding steel bars are welded. Then the steel reinforcement cage is inserted into the designated position, and cement is poured through the conduit. After the cement solidifies, during the test, by pressurizing the hydraulic jack, the bearing capacity of the pile foundation and the like are detected, so as to realize the detection of the pile foundation by using the self-balanced method.

[0028] Although the present utility model has been illustrated and described by referring to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and details can be made within the scope of the claims.

Claims

1. A load cell for a steel pipe pile using the self-balanced method of pile foundation, comprising a lower box body (2) and an oil hydraulic jack (3), wherein the upper end of the lower box body (2) is fixedly connected to a plurality of oil hydraulic jacks (3), and is characterized in that: The upper end of the hydraulic jack (3) is fixedly connected with an upper box body (1). Adjusting structures (4) are arranged inside both the upper box body (1) and the lower box body (2). The inner wall of the upper box body (1) is fixedly connected with a support plate (5), and the inner wall of the lower box body (1) is fixedly connected with a support plate (5).

2. The load cell for steel pipe piles using the self-balanced pile foundation method according to claim 1, characterized in that: The adjusting structure (4) includes a gear (403). The upper end of the gear (403) is fixedly connected with a clamping block (402). The clamping block (402) is rotationally connected with the upper box body (1) through a bearing. The inner wall of the clamping block (402) is in fit with a handle (401). A chute (404) is machined inside the gear (403). The outer wall of a cylinder (405) is slidably connected with the chute (404). The end of the cylinder (405) is fixedly connected with a straight plate (406).

3. The load cell for steel pipe piles using the self-balanced pile foundation method according to claim 2, characterized in that: The upper and lower ends of the straight plate (406) are slidably connected with the first box body (1), and the straight plate (406) is slidably connected with the support plate (5).

4. A load cell for a steel pipe pile using the self-balanced method of pile foundation according to claim 1, characterized in that: The upper end of the lower box body (2) is fixedly connected with a lower protective sleeve (6). The outer wall of the lower protective sleeve (6) is fixedly connected with the upper box body (1). A lower displacement pipe (7) is arranged inside the lower protective sleeve (6). The lower end of the lower displacement pipe (7) is fixedly connected with the lower box body (2).

5. The load cell for steel pipe piles using the self-balanced method of pile foundation according to claim 1, characterized in that: The upper end of the upper box body (1) is fixedly connected with an upper protective sleeve (8). An upper displacement pipe (9) is arranged inside the upper protective sleeve (8). The lower end of the upper displacement pipe (9) is fixedly connected with the upper box body (1).

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