Pile foundation construction hole depth measuring device

Abstract

A pile foundation construction hole depth measuring device belongs to the technical field of measuring devices and comprises a base, a through groove is formed in the base from top to bottom in a penetrating mode, a measuring scale is movably arranged in an inner cavity of the through groove in the vertical direction, a supporting frame is fixedly and vertically installed at the top end of the base, a top seat is fixedly installed on the outer wall of the supporting frame, and a limiting groove is formed in the front side of the top seat. According to the utility model, when the measuring scale is used for measuring the depth of a pile foundation hole, the measuring scale can be always kept in a vertical state, errors of a detection result caused by the inclined measuring scale are avoided, the accuracy of the detection result is further ensured, the measuring scale can move more smoothly in the vertical direction by means of the rolling limiting roller, the friction force is reduced, and the measurement accuracy is improved. Abrasion caused by direct contact between the measuring scale and the inner wall of the limiting groove is avoided, bending reading is not needed, data recording is more convenient, reading errors caused by bending reading can be avoided, and the accuracy of pile foundation hole depth measurement is further guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of measuring device technology, specifically relating to a device for measuring the depth of holes in pile foundation construction. Background Technology

[0002] When constructing a pile foundation, it is necessary to pre-drill pile foundation holes. The depth of the pile foundation holes directly affects the stability of the pile foundation after installation.

[0003] A related technology (publication number CN218496002U) discloses a pile foundation hole depth measuring device for pile foundation construction, including a bucket body and a sliding bucket. A spirit level is fixedly connected to the right side of the bucket body, and a motor is fixedly connected to the upper middle part of the bucket body. A connecting rod is fixedly connected to the outer wall of the lower drive end of the motor, and a lifting ring is fixedly connected to the lower end of the connecting rod. A lifting plate is threadedly connected inside the lifting ring, and a sliding groove is provided in the middle of the bottom end of the bucket body. First, adjust the support legs, which can be observed through the spirit level. If it is unbalanced, adjust the spirit level by turning the knob until the bucket body is in a stable state. This will prevent tilting and inaccurate readings, reducing errors. Start the motor. The rotation of the motor drives the connecting rod and the lifting ring to rotate to the scale plate fixed to the lifting plate for lifting and lowering. This is convenient to operate, avoids the time-consuming and laborious manual measurement, and improves work efficiency.

[0004] When measuring the depth of pile foundation holes, if the measuring ruler is tilted during measurement, it will lead to errors in the test results and affect the accuracy of the pile foundation hole depth test results. In addition, the current method of directly observing the relative position of the measuring ruler after it is inserted into the pile foundation hole to measure the pile foundation hole depth is usually achieved by the human eye. This observation and testing method requires the person to bend over to observe and read the measuring ruler, which is inconvenient. Moreover, the bending over method of reading can easily cause errors in the reading, further affecting the accuracy of the foundation pit hole depth measurement. Utility Model Content

[0005] To address the problem in existing technologies where tilted measuring rulers during pile foundation hole depth measurement lead to errors in the measurement results and affect their accuracy, this invention provides a pile foundation hole depth measuring device. This device ensures the measuring ruler remains vertical during measurement, avoiding errors caused by tilted rulers and guaranteeing accuracy. Furthermore, the use of a rolling limiting roller facilitates smoother vertical movement of the measuring ruler. The specific technical solution is as follows:

[0006] A device for measuring the depth of pile foundation construction holes includes a base with a through groove extending from top to bottom. A measuring ruler is movably mounted in the vertical direction within the cavity of the through groove. A support frame is fixed and vertically installed at the top of the base. A top seat is fixedly installed on the outer wall of the support frame. A limiting groove is formed on the front side of the top seat. The measuring ruler is slidably embedded in the cavity of the limiting groove. A marking rod corresponding to the outer wall of the measuring ruler is provided at the top of the base.

[0007] In the above technical solution, limiting rollers are rotatably arranged on both sides of the inner wall of the limiting groove, and the limiting rollers roll and fit against the side wall of the measuring ruler.

[0008] In the above technical solution, a top frame is fixedly installed at the top of the top seat, a motor is installed at the top of the top frame, a drive shaft is connected to the output end of the motor, the bottom end of the drive shaft is rotatably connected to the upper surface of the top seat, a first gear is fixedly installed on the outer wall of the drive shaft, a rotating seat is rotatably connected to the upper surface of the top seat, a second gear is fixedly installed at the top of the rotating seat, and the second gear meshes with the outer wall of the first gear.

[0009] In the above technical solution, the screw passes through the inner cavity of the rotating seat and the second gear from top to bottom, and the screw is threadedly connected to the inner wall of the rotating seat. A connecting seat is fixedly installed at the bottom of the outer wall of the screw, and the connecting seat is fixedly connected to the side wall of the measuring scale.

[0010] In the above technical solution, a mounting base is fixedly installed on the upper surface of the base, a limiting seat is fixedly installed on the top of the mounting base, a driving rod is provided through the outer wall of the limiting seat, one end of the driving rod is fixedly connected to the marking rod, a handle is installed on the other end of the driving rod, and the marking rod corresponds to the side wall position of the measuring ruler.

[0011] In the above technical solution, an ink groove is provided at the top of the mounting base, and a sponge strip is embedded in the inner cavity of the ink groove.

[0012] In the above technical solution, the top of the sponge strip is located higher than the location of the marker rod.

[0013] The present invention provides a device for measuring the depth of boreholes in pile foundation construction. Compared with the prior art, the advantages of this device are as follows:

[0014] I. To address the problem that when measuring the depth of pile foundation holes, if the measuring ruler is tilted during measurement, errors in the test results will occur, affecting the accuracy of the pile foundation hole depth test results, this utility model, by setting up a first gear, a rotating seat, a second gear, a screw, and a connecting seat, can make the measuring ruler move vertically along the inner cavity of the limiting groove, ensuring that the measuring ruler can always maintain a vertical state when measuring the depth of pile foundation holes, avoiding errors caused by the tilted measuring ruler, and thus ensuring the accuracy of the test results;

[0015] II. By setting a limiting roller on the inner wall of the limiting groove, this utility model can limit the measuring ruler in the vertical direction while avoiding wear caused by direct contact between the measuring ruler and the inner wall of the limiting groove. The rolling limiting roller can make the measuring ruler move more smoothly in the vertical direction and reduce friction.

[0016] Thirdly, the process of reading and recording the measurement ruler by bending over is inconvenient, and the bending over method of reading can easily cause errors in the reading, further affecting the accuracy of pile hole depth measurement. This utility model, by setting up an installation base, ink groove, sponge strip, and marking rod, can leave a marking line on the outer wall of the measuring ruler when the bottom end of the measuring ruler reaches the bottom of the inner cavity of the pile hole. Since the height of the marking rod from the ground is always consistent, the reading at the marking line minus the height of the marking rod from the ground is the final depth of the pile hole. There is no need to bend over to read the data, making data recording more convenient and avoiding the reading errors caused by bending over to read the data, thus further ensuring the accuracy of pile hole depth measurement.

[0017] In summary, this invention ensures that the measuring ruler remains vertical when measuring the depth of pile foundation holes, avoiding errors caused by an inclined measuring ruler and thus guaranteeing the accuracy of the test results. Furthermore, the rolling limiting roller facilitates smoother vertical movement of the measuring ruler, reducing friction and preventing wear caused by direct contact between the measuring ruler and the inner wall of the limiting groove. In addition, it eliminates the need for bending over to read the data, making data recording more convenient and avoiding reading errors caused by bending over, further ensuring the accuracy of pile foundation hole depth measurement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the measuring ruler of this utility model;

[0019] Figure 2 This is a partial structural schematic diagram of the limiting groove of this utility model;

[0020] Figure 3 This is a partial structural schematic diagram of the marking rod of this utility model;

[0021] Figure 4This is a partial structural schematic diagram of the second gear of this utility model;

[0022] Figures 1 to 4 In the middle, 1. base, 2. top seat, 3. limiting groove, 4. limiting roller, 5. measuring ruler, 6. top frame, 7. motor, 8. drive shaft, 9. first gear, 10. rotating seat, 11. second gear, 12. screw, 13. connecting seat, 14. support frame, 16. through groove, 17. mounting seat, 18. ink trough, 19. sponge strip, 20. limiting seat, 21. drive rod, 22. marking rod, 23. handle. Detailed Implementation

[0023] The following are specific implementation cases and appendices. Figures 1 to 4 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0024] See Figures 1 to 4 As shown, a device for measuring the depth of a pile foundation hole includes a base 1. A through groove 16 is formed from top to bottom on the base 1. A measuring ruler 5 is vertically movable within the cavity of the through groove 16. The measuring ruler 5 has graduation lines marked on its front side. A support frame 14 is fixedly and vertically installed at the top of the base 1. A top seat 2 is fixedly installed on the outer wall of the support frame 14. A limiting groove 3 is formed on the front side of the top seat 2. The measuring ruler 5 is slidably embedded within the cavity of the limiting groove 3. A marking rod 22 corresponding to the outer wall of the measuring ruler 5 is provided at the top of the base 1. The measuring ruler 5 penetrates deep into the foundation hole through its bottom end. The pit cavity is marked with the position of the scale line of the measuring ruler 5 relative to the marking rod 22, which enables the detection of the pile foundation depth. The inner walls of the limiting groove 3 are equipped with limiting rollers 4 on both sides through bearings, and the limiting rollers 4 roll and fit against the side wall of the measuring ruler 5. By setting the limiting rollers 4 on the inner wall of the limiting groove 3, the measuring ruler 5 can be vertically limited while avoiding wear caused by direct contact between the measuring ruler 5 and the inner wall of the limiting groove 3. The rolling limiting rollers 4 can make the vertical movement of the measuring ruler 5 smoother and reduce friction.

[0025] See Figure 1 , Figure 2 and Figure 4As shown, a top frame 6 is fixedly installed on the top of the top seat 2, and a motor 7 is installed on the top of the top frame 6. The motor 7 is a commercially available self-locking motor, whose output end can be locked after the equipment stops and will not continue to rotate. The output end of the motor 7 is connected to a drive shaft 8. The bottom end of the drive shaft 8 is rotatably connected to the upper surface of the top seat 2 via a bearing. A first gear 9 is fixedly installed on the outer wall of the drive shaft 8. A rotating seat 10 is rotatably connected to the upper surface of the top seat 2. A second gear 11 is fixedly installed on the top of the rotating seat 10. The second gear 11 meshes with the outer wall of the first gear 9. A screw 12 passes through the inner cavity of the rotating seat 10 and the second gear 11 from top to bottom, and the screw 12 is connected to the rotating seat 10. The inner wall of the seat 10 is threaded, and the bottom of the outer wall of the screw 12 is fixedly installed with a connecting seat 13, which is fixedly connected to the side wall of the measuring ruler 5. The motor 7 is turned on to drive the drive shaft 8 and the first gear 9 to rotate, which in turn causes the second gear 11 and the rotating seat 10 to rotate synchronously. Since the screw 12 is threadedly connected to the rotating seat 10, the rotating seat 10, which is rotating in place, causes the screw 12 to descend vertically, so as to drive the measuring ruler 5 to descend vertically synchronously. At this time, during the process of the measuring ruler 5 descending along the inner cavity of the limiting groove 3, the limiting roller 4 is forced to rotate to roll and limit the movement of the measuring ruler 5 in the inner cavity of the limiting groove 3.

[0026] See Figure 3 As shown, a mounting base 17 is fixedly installed on the upper surface of the base 1. A limiting seat 20 is fixedly installed at the top of the mounting base 17. A drive rod 21 is provided through the outer wall of the limiting seat 20. One end of the drive rod 21 is fixedly connected to the marking rod 22, and a handle 23 is installed at the other end of the drive rod 21. The marking rod 22 corresponds to the side wall of the measuring ruler 5. When the bottom end of the measuring ruler 5 descends to the bottom of the inner cavity of the pile hole, the external force pushes the handle 23, the drive rod 21 and the marking rod 22 to move closer to the outer wall of the measuring ruler 5. As the marking rod 22 adheres to the outer wall of the measuring ruler 5, a marking line is formed on the outer wall of the measuring ruler 5. Since the height of the marking rod 22 from the ground is always consistent, the reading at the marking line minus the height of the marking rod 22 from the ground is the final depth of the pile hole. This process does not require bending over to read the data, making data recording more convenient and avoiding reading errors caused by bending over to read the data, thus further ensuring the accuracy of the pile hole depth measurement.

[0027] The mounting base 17 has an ink reservoir 18 at its top, with a sponge strip 19 embedded inside. The marking rod 22 moves along the outer wall of the sponge strip 19, causing the sponge strip 19 to deform and ensuring that the outer wall of the marking rod 22 is coated with sufficient ink. As the marking rod 22 adheres to the outer wall of the measuring scale 5, a marking line is formed on the outer wall of the measuring scale 5. The top of the sponge strip 19 is positioned higher than the marking rod 22, ensuring that the marking rod 22 can move along the outer wall of the sponge strip 19 and pick up enough ink to ensure a clear marking line is formed when the marking rod 22 subsequently adheres to the scale line on the outer wall of the measuring scale 5. It is also worth noting that the ink uses a commercially available, easily erasable material, allowing the marking line formed on the scale line of the measuring scale 5 to be wiped off later, ensuring that the equipment can be reused multiple times.

[0028] The working principle of the pile foundation construction borehole depth measuring device in this embodiment is as follows:

[0029] The motor 7 is turned on, which causes the drive shaft 8 and the first gear 9 to rotate, which in turn causes the second gear 11 and the rotating seat 10 to rotate synchronously. Since the screw 12 is threadedly connected to the rotating seat 10, the rotating seat 10 rotates in place, causing the screw 12 to descend vertically, which in turn causes the connecting seat 13 and the measuring ruler 5 to descend vertically synchronously. At this time, as the measuring ruler 5 descends along the inner cavity of the limiting groove 3, the limiting roller 4 is forced to rotate, so as to roll and limit the movement of the measuring ruler 5 in the inner cavity of the limiting groove 3.

[0030] When the bottom end of the measuring ruler 5 descends to the bottom of the inner cavity of the pile hole, external force pushes the handle 23, drive rod 21 and marking rod 22 to move closer to the outer wall of the measuring ruler 5. During this process, the marking rod 22 moves along the outer wall of the sponge strip 19 and causes the sponge strip 19 to deform so that the outer wall of the marking rod 22 is covered with enough ink from the sponge strip 19. As the marking rod 22 adheres to the outer wall of the measuring ruler 5, a marking line is formed on the outer wall of the measuring ruler 5. Since the height of the marking rod 22 from the ground is always consistent, the reading at the marking line minus the height of the marking rod 22 from the ground is the final depth of the pile hole. This process does not require bending over to read the data, making data recording more convenient and avoiding reading errors caused by bending over to read the data, further ensuring the accuracy of the pile hole depth measurement.

[0031] This invention ensures that the measuring ruler 5 remains vertical when measuring the depth of the pile foundation hole, avoiding errors caused by an inclined measuring ruler 5 and thus ensuring the accuracy of the test results. Furthermore, the rolling limiting roller 4 facilitates smoother vertical movement of the measuring ruler 5, reducing friction and preventing wear caused by direct contact between the measuring ruler 5 and the inner wall of the limiting groove 3. In addition, it eliminates the need for bending over to read the data, making data recording more convenient and avoiding reading errors caused by bending over, further ensuring the accuracy of the pile foundation hole depth measurement.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for measuring the depth of a pile foundation construction hole, comprising a base (1), wherein the base (1) has a through groove (16) extending from top to bottom, characterized in that, The measuring ruler (5) is installed in the vertical direction of the inner cavity of the through groove (16). The support frame (14) is fixed and vertically installed on the top of the base (1). The top seat (2) is fixedly installed on the outer wall of the support frame (14). A limiting groove (3) is opened on the front side of the top seat (2). The measuring ruler (5) is slidably embedded in the inner cavity of the limiting groove (3). A marking rod (22) corresponding to the outer wall of the measuring ruler (5) is provided on the top of the base (1).

2. The pile foundation construction hole depth measuring device according to claim 1, characterized in that: The limiting groove (3) has limiting rollers (4) rotatably installed on both sides of its inner wall, and the limiting rollers (4) roll and fit against the side wall of the measuring ruler (5).

3. The pile foundation construction hole depth measuring device according to claim 1, characterized in that: A top frame (6) is fixedly installed on the top of the top seat (2). A motor (7) is installed on the top of the top frame (6). A drive shaft (8) is connected to the output end of the motor (7). The bottom end of the drive shaft (8) is rotatably connected to the upper surface of the top seat (2). A first gear (9) is fixedly installed on the outer wall of the drive shaft (8). A rotating seat (10) is rotatably connected to the upper surface of the top seat (2). A second gear (11) is fixedly installed on the top of the rotating seat (10). The second gear (11) meshes with the outer wall of the first gear (9).

4. The pile foundation construction hole depth measuring device according to claim 3, characterized in that: The screw (12) passes through the inner cavity of the rotating seat (10) and the second gear (11) from top to bottom, and the screw (12) is threadedly connected to the inner wall of the rotating seat (10). A connecting seat (13) is fixedly installed at the bottom of the outer wall of the screw (12), and the connecting seat (13) is fixedly connected to the side wall of the measuring ruler (5).

5. The pile foundation construction hole depth measuring device according to claim 1, characterized in that: A mounting base (17) is fixedly installed on the upper surface of the base (1). A limiting seat (20) is fixedly installed at the top of the mounting base (17). A driving rod (21) is provided through the outer wall of the limiting seat (20). One end of the driving rod (21) is fixedly connected to the marking rod (22). A handle (23) is installed at the other end of the driving rod (21). The marking rod (22) corresponds to the side wall position of the measuring ruler (5).

6. The pile foundation construction hole depth measuring device according to claim 5, characterized in that: The top of the mounting base (17) is provided with an ink groove (18), and a sponge strip (19) is embedded in the inner cavity of the ink groove (18).

7. The pile foundation construction hole depth measuring device according to claim 6, characterized in that: The top of the sponge strip (19) is located higher than the location of the marker rod (22).

Images