Sensor protection structure for pile foundation detection

Abstract

The utility model relates to the technical field of sensors, and discloses a sensor protection structure for pile foundation detection, which comprises a sensor body, a plurality of support columns are fixedly connected to the outside of the sensor body, sliding cylinders are slidably connected to the outside of the support columns, and positioning columns are fixedly connected to the far sides of the inner walls of the plurality of sliding cylinders. Opening blocks are fixedly connected to the sides, far away from each other, of the multiple supporting columns, positioning shafts are fixedly connected to the interiors of the opening blocks, the positioning shafts are sleeved with two first springs, two side blocks are slidably connected to the exteriors of the positioning shafts, and trapezoidal blocks are fixedly connected to the exteriors of the side blocks. According to the device, elastic potential energy can be stored through the first spring, then force in the opposite direction is given to the positioning shaft for resetting, the positioning shaft can make contact with a pile foundation, the elastic force of the first spring is utilized, the loading weight is reduced, damage is avoided, and therefore the service life of the device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor technical field especially relates to sensor protection structure for pile foundation detection. BACKGROUND

[0002] Pile foundation is the foundation form that is jointly formed by the pile arranged in the soil and the bearing platform connected to the top end of the pile, and its role is to pass through weak high compressibility soil layer or water, and to transmit the load borne by the pile to the more hard, more dense or less compressibility foundation bearing layer, and the performance of the pile foundation is evaluated by measuring the strain change of the pile body under stress. For example, the strain gauge or strain meter is installed on the surface of the pile body, when the pile is subjected to vertical load or horizontal load, the pile body deforms, and the strain sensor can sense the deformation and convert it into electrical signal output, so as to reflect the stress state and bearing capacity of the pile body.

[0003] According to the pile diameter, the drilling position is determined, the strain force sensor and the acceleration sensor are respectively installed in the corresponding holes and fixed after the installation hole is drilled. The data acquisition device is connected and the sampling parameters are set, the pile foundation is loaded according to the loading scheme, the sensor measures the data and is recorded and saved by the acquisition device.

[0004] However, in the prior art, part of the pile foundation detection sensor will be subjected to pressure from the pile body during the pile foundation detection process. For example, in the static load test, as the loading weight increases, the sensor installed on the pile body will be deformed due to bearing excessive pressure, and then the internal structure will be damaged, resulting in reduced service life. Therefore, the pile foundation detection sensor protection structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a pile foundation detection sensor protection structure, which aims at improving the problem that part of the pile foundation detection sensor in the prior art will rub with the pile foundation during use, and will be damaged with weight loading, thereby affecting the service life.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A protective structure for a pile foundation detection sensor includes a sensor body. Multiple support columns are fixedly connected to the outside of the sensor body. Sliding cylinders are slidably connected to the outside of each support column. Positioning columns are fixedly connected to opposite sides of the inner walls of each sliding cylinder. Opening blocks are fixedly connected to opposite sides of each support column. A positioning shaft is fixedly connected inside each opening block. Two springs are sleeved on the outside of the positioning shaft. Two side blocks are slidably connected to the outside of the positioning shaft. Trapezoidal blocks are fixedly connected to the outside of each side block. Protective plates are fixedly connected to the outside of the two sliding cylinders. A connecting cover is fixedly connected to the top side of the sensor body. A connecting head is slidably connected inside the connecting cover. Reset components are provided at both ends of the connecting cover.

[0008] As a further description of the above technical solution:

[0009] Both of the reset components include two positioning rods. The exterior of the multiple positioning rods is fixedly connected to the interior of the left and right ends of the connecting cover. A spring is sleeved on the exterior of the positioning rod. A side plate is slidably connected to the exterior of the positioning rod. A triangular block is fixedly connected to the adjacent side of the two side plates. A push plate is fixedly connected to the top side of the triangular block.

[0010] As a further description of the above technical solution:

[0011] A connecting wire is fixedly connected inside the connector, and connecting frames are fixedly connected to both the left and right sides of the connector.

[0012] As a further description of the above technical solution:

[0013] The external part of the positioning post is slidably connected to the inside of the opening block, and the external part of the positioning post is slidably connected to the adjacent side of the two trapezoidal blocks;

[0014] As a further description of the above technical solution:

[0015] The outer side of the opening block is slidably connected to the inside of the sliding cylinder, and the outer side of the two side blocks is slidably connected to the inside of the opening block;

[0016] As a further description of the above technical solution:

[0017] The exterior of the two connecting frames is slidably connected to the interior of the left and right ends of the connecting cover, respectively, and the exterior of the triangular block is slidably connected to the interior of the connecting frame;

[0018] As a further description of the above technical solution:

[0019] The exterior of the two triangular blocks is slidably connected to the interior of the left and right ends of the connecting cover, and the far sides of the multiple side plates are fixedly connected to the near ends of the multiple springs.

[0020] As a further description of the above technical solution:

[0021] The opposite ends of the multiple springs are respectively fixedly connected to the left and right sides of the inner wall of the connecting cover, and the outer sides of the multiple side plates are respectively slidably connected to the inside of the left and right ends of the connecting cover.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by driving the side block to slide and squeeze the spring, the spring can store elastic potential energy, and then give the positioning shaft a force in the opposite direction to reset it, so that it can contact the pile foundation. The elastic force of the spring reduces the load weight, avoids damage, and thus extends its service life.

[0024] 2. In this utility model, a force in the opposite direction is applied to the triangular block for resetting. After the connecting frame is fully engaged inside the connecting cover, the triangular block is used to engage the connecting frame, thereby quickly fixing the sensor body and the connector, thus improving the connection efficiency. Attached Figure Description

[0025] Figure 1 This is a perspective view of the protective structure of the sensor for pile foundation testing proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the protective plate of the sensor protection structure for pile foundation testing proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the positioning column of the sensor protection structure for pile foundation testing proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the connecting cover of the protective structure for the pile foundation detection sensor proposed in this utility model;

[0030] Figure 6 for Figure 5 Enlarged view at point B in the middle;

[0031] Figure 7 This is a schematic diagram of the triangular block structure of the sensor protection structure for pile foundation detection proposed in this utility model.

[0032] Legend:

[0033] 1. Sensor body; 2. Support column; 3. Sliding cylinder; 4. Positioning column; 5. Trapezoidal block; 6. Side block; 7. Positioning shaft; 8. Spring 1; 9. Protective plate; 10. Connecting cover; 11. Connector; 12. Connecting wire; 13. Connecting frame; 14. Positioning rod; 15. Spring 2; 16. Triangular block; 17. Push plate; 18. Opening block; 19. Side plate. Detailed Implementation

[0034] 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.

[0035] Reference Figures 1 to 3 This utility model provides an embodiment of a sensor protection structure for pile foundation testing, comprising a sensor body 1, which is a piezoelectric or strain gauge sensor. Multiple support columns 2 are fixedly connected to the outside of the sensor body 1, and sliding cylinders 3 are slidably connected to the outside of the support columns 2, fixed by welding. The constraint of the support columns 2 allows the sliding cylinders 3 to slide stably, thus providing support for the support columns 2. Positioning columns 4 are fixedly connected to the opposite sides of the inner walls of the multiple sliding cylinders 3, fixed by welding, thus providing support for the positioning columns 4. Opening blocks 18 are fixedly connected to the opposite sides of the multiple support columns 2, also fixed by welding, thus providing support for the opening blocks 18.

[0036] Reference Figures 2 to 4 The positioning post 4 is externally slidably connected to the inside of the opening block 18, guiding its stable sliding. A positioning shaft 7 is fixedly connected inside the opening block 18 via welding, ensuring stable guidance. Two springs 8 are sleeved on the outside of the positioning shaft 7, providing uniform force by limiting their movement. Two side blocks 6 are externally slidably connected to the positioning shaft 7, allowing them to slide stably. A trapezoidal block 5 is fixedly connected to the outside of the side blocks 6, providing support and causing them to slide synchronously. The positioning post 4 is externally slidably connected to the adjacent side of the two trapezoidal blocks 5, causing them to slide towards the opposite side. Protective plates 9 are fixedly connected to the outside of the two sliding cylinders 3, protecting the sensor body 1 and preventing direct contact with the pile foundation.

[0037] ReferenceFigures 5 to 7 A connecting cover 10 is fixedly connected to the top side of the sensor body 1 by welding, thus providing support for the connecting cover 10. A connector 11 is slidably connected inside the connecting cover 10, allowing the connector 11 to slide stably due to the constraint of the connecting cover 10. A connecting wire 12, which is a multi-strand copper core shielded wire, is fixedly connected inside the connector 11. Connecting frames 13 are fixedly connected to both sides of the connector 11 by welding, thus providing support for the two connecting frames 13. The two connecting frames 13 are slidably connected to the inside of the left and right ends of the connecting cover 10, allowing the connecting frames 13 to slide stably due to the constraint of the connecting cover 10. Reset components are provided at both ends of the connecting cover 10. Each reset component includes two positioning rods 14, with the outside of the multiple positioning rods 14 fixedly connected to the inside of the left and right ends of the connecting cover 10 by welding, thus providing support for the positioning rods 14.

[0038] A second spring 15 is sleeved on the outside of the positioning rod 14. By restricting the second spring 15, the second spring 15 can be evenly stressed. A side plate 19 is slidably connected to the outside of the positioning rod 14. By restricting the positioning rod 14, the side plate 19 can slide stably. The opposite ends of the multiple side plates 19 are fixedly connected to the adjacent ends of the multiple second springs 15. During the sliding process, the side plates 19 compress the second springs 15, allowing the second springs 15 to store elastic potential energy, and then give the side plates 19 a force in the opposite direction for reset. The opposite ends of the multiple second springs 15 are fixedly connected to the left and right sides of the inner wall of the connecting cover 10. By fixing the second springs 15, the stress points of the second springs 15 are evenly distributed. The outside of the multiple side plates 19 are slidably connected to the inside of the left and right ends of the connecting cover 10. By restricting the connecting cover 10, the side plates 19 can slide stably.

[0039] Triangular blocks 16 are fixedly connected to adjacent sides of the two side plates 19 by welding, providing support for the triangular blocks 16. The exteriors of the two triangular blocks 16 are slidably connected to the interiors of the left and right ends of the connecting cover 10, allowing the triangular blocks 16 to slide stably. The exteriors of the triangular blocks 16 are slidably connected to the interior of the connecting frame 13, engaging with the frame. A push plate 17 is fixedly connected to the top of the triangular blocks 16, causing them to slide synchronously. The exterior of the opening block 18 is slidably connected to the interior of the sliding cylinder 3, allowing it to slide stably. The exteriors of the two side blocks 6 are slidably connected to the interior of the opening block 18, allowing them to slide stably.

[0040] Working principle: When installing the connector 11 and the sensor body 1, the two connecting frames 13 on the connector 11 are engaged inside the connecting cover 10, while simultaneously pressing against the triangular block 16. The inclined surface of the triangular block 16 allows it to drive the positioning rod 14 to slide, which in turn drives the side plate 19 to slide and compress the second spring 15. This allows the second spring 15 to store elastic potential energy, which then applies a force in the opposite direction to the triangular block 16 to reset it. When the connecting frame 13 is fully engaged inside the connecting cover 10, the triangular block 16 completes the engagement of the connecting frame 13, thereby quickly fixing the sensor body 1 and the connector 11. Conversely, pushing the push plate 17 causes the triangular block 16 to slide, allowing it to slide away from the inside of the connecting frame 13. At this point, the sensor body 1 can be removed.

[0041] Then, the sensor body 1 is engaged in the pile foundation. At this time, the protective plate 9 is pressed against the sliding cylinder 3, which slides along the support column 2. Then, the positioning column 4 slides, so that the positioning column 4 can slide against the two contacting trapezoidal blocks 5. Then, the side block 6 slides and squeezes the spring 8, so that the spring 8 can store elastic potential energy. Then, it gives the positioning shaft 7 a force in the opposite direction to reset it, so that it can contact the pile foundation. The elastic force of the spring 8 is used to reduce the load weight, avoid damage, and thus extend its service life.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sensor protection structure for pile testing, characterized by: The utility model relates to a sensor, including sensor body (1), a plurality of support columns (2) are fixedly connected to the outside of sensor body (1), the outer sliding connection of support column (2) has sliding cylinder (3), the inner wall of a plurality of sliding cylinder (3) is fixedly connected with the far side of positioning column (4), the far side of a plurality of support columns (2) is fixedly connected with opening block (18), the inside of opening block (18) is fixedly connected with positioning shaft (7), the outside of positioning shaft (7) is equipped with two spring one (8), the outside sliding connection of positioning shaft (7) has two side blocks (6), the outside of side block (6) is fixedly connected with trapezoidal block (5), the outside of two sliding cylinder (3) is fixedly connected with guard board (9), the top of sensor body (1) is fixedly connected with connecting cover (10), the inside sliding connection of connecting cover (10) has connector (11), and the left and right two ends of connecting cover (10) are provided with reset subassembly.

2. The sensor protection structure for pile testing according to claim 1, characterized in that: Two reset subassemblies all include two positioning rods (14), the outside of a plurality of positioning rods (14) is fixedly connected in the inside of left and right two ends of connecting cover (10) respectively, the outside of positioning rod (14) is equipped with spring two (15), the outside sliding connection of positioning rod (14) has side plate (19), the near side of two side plates (19) is fixedly connected with triangular block (16), the top of triangular block (16) is fixedly connected with push plate (17).

3. The sensor protection structure for pile testing according to claim 2, characterized in that: The inside of connector (11) is fixedly connected with connecting line (12), and the left and right sides of connector (11) are fixedly connected with connecting frame (13).

4. The sensor protection structure for pile testing according to claim 1, characterized in that: The outside sliding connection of positioning column (4) is in the inside of opening block (18), and the outside sliding connection of positioning column (4) is in the near side of two trapezoidal blocks (5).

5. The sensor protection structure for pile testing according to claim 1, characterized in that: The outside sliding connection of opening block (18) is in the inside of sliding cylinder (3), and the outside sliding connection of two side blocks (6) is in the inside of opening block (18).

6. The sensor protection structure for pile testing according to claim 3, characterized in that: The outside of two connecting frames (13) is slidably connected in the inside of left and right two ends of connecting cover (10) respectively, and the outside sliding connection of triangular block (16) is in the inside of connecting frame (13).

7. The sensor protection structure for pile testing according to claim 2, characterized in that: The outside of two triangular blocks (16) is slidably connected in the inside of left and right two ends of connecting cover (10) respectively, and the far side of a plurality of side plates (19) is fixedly connected in the near end of a plurality of spring two (15) respectively.

8. The sensor protection structure for pile testing according to claim 2, characterized in that: The far end of a plurality of spring two (15) is fixedly connected in the left and right sides of the inner wall of connecting cover (10), and the outside of a plurality of side plates (19) is slidably connected in the inside of left and right two ends of connecting cover (10) respectively.

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