Construction data acquisition device for diesel hammer pile machine
By installing a data acquisition device on the diesel hammer pile driver, and automatically collecting construction data using laser photoelectric sensors and wire displacement meters, the problems of manual recording errors and difficulty in on-site supervision are solved, and data accuracy and effective supervision of construction are achieved.
Patent Information
- Application Number
- CN202421911704.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-07
AI Technical Summary
During the construction of diesel hammer pile drivers, there are problems such as errors and missed recording of data manually, resulting in untrue data, affecting construction judgments, and on-site supervision is difficult to monitor in real time, and there is a lack of effective supervision.
A construction data acquisition device for diesel hammer pile machine is designed, including a data processing unit, a laser photoelectric sensor and a wire displacement meter. The number of hammer strikes and depth of the ground are automatically collected through the laser photoelectric sensor and wire displacement meter to monitor construction data in real time.
It realizes automatic collection and real-time monitoring of construction data, reduces manual errors, ensures the accuracy and authenticity of data, improves construction efficiency, and supervises pile foundation construction throughout the construction control module to avoid cutting corners.
Smart Images
Figure CN222865957U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to field construction control, in particular to a construction data acquisition device for a diesel pile hammer. Background Art
[0002] As infrastructure construction slows down, refined management will become an issue of increasing concern to investors and builders. As an important part of infrastructure construction, precast pile construction is widely used in various construction projects.
[0003] As the earliest introduced and most experienced pile driving equipment, diesel hammer pile drivers are widely used in pile foundation construction. Diesel hammer pile drivers use diesel engines to provide power, so that the piston moves up and down, driving the hammer head to continuously strike the pile foundation, so as to achieve the purpose of driving the pile foundation into the ground. Diesel hammer pile drivers are powerful and flexible, and are often used in the construction of extra-long prefabricated pipe piles. However, there are the following problems in actual construction:
[0004] Under the impact of the pile hammer, the pile body continuously enters the soil layer. The number of hammer blows per meter is used to judge the hardness and bearing capacity of the stratum, and is the basis for the construction acceptance of prefabricated pipe piles. In the current construction process, workers record the number of hammer blows per meter by drawing scale lines on the pile body. In order to save labor costs, the construction data recorders also have to take on multiple duties. There are omissions and fabrications in the recording process, which makes the data untrue and affects the construction judgment. On-site supervisors mostly control the pile foundation construction process through post-construction data files, which has limitations in terms of time and space, and it is difficult to ensure that the on-site construction pile foundation meets the design requirements, and there is a lack of effective supervision.
[0005] (2) The working conditions at the precast pile construction site are complex and require a lot of data to be recorded, which are mostly filled out on site in paper form. During the recording process, there are problems such as difficulty in data tracking, difficulty in preserving files, difficulty in data sharing, and easy creation of safety hazards. Summary of the invention
[0006] The purpose of the utility model is to provide a construction data acquisition device for a diesel hammer pile driver, which can automatically collect and record the construction data of the diesel hammer pile driver, avoid errors and omissions in manual recording, and realize real-time monitoring of the construction data of the diesel hammer pile driver.
[0007] In view of the above problems, the utility model provides a data acquisition device for diesel hammer pile driver construction; the data acquisition device is installed on the diesel hammer pile driver, the diesel hammer pile driver includes a pile driver platform, a pile seat and a guide rod, a diesel hammer is slidably installed on the guide rod, the data acquisition device includes a data processing unit, a laser photoelectric sensor and a wire displacement meter, the photoelectric sensor transmitting end and the photoelectric sensor receiving end of the laser photoelectric sensor are symmetrically arranged on both sides of the hammering area of the pile seat, and a protective sleeve is provided outside the photoelectric sensor transmitting end and the photoelectric sensor receiving end, and when the diesel hammer falls to the hammering area of the pile seat, it is located between the photoelectric sensor transmitting end and the photoelectric sensor receiving end, and the laser emitted by the photoelectric sensor transmitting end is shielded; the data processing unit and the wire displacement meter are both arranged on the pile driver platform, a support rod parallel to the diesel hammer is welded on the top of the guide rod, the support rod extends horizontally to just above the wire displacement meter, and the wire end of the wire displacement meter is fixed to the end of the support rod; the signal output ends of the photoelectric sensor transmitting end, the photoelectric sensor receiving end and the wire displacement meter are all connected to the signal output end of the data processing unit.
[0008] The utility model has a better technical solution: two guide rods are provided, the diesel hammer is slidably installed on the two guide rods, a cylinder is provided under the diesel hammer, a plunger matching the cylinder is provided on the pile seat, and a pile cap is provided under the plunger; the photoelectric sensor transmitting end and the photoelectric sensor receiving end are symmetrically arranged on both sides in front of the plunger, adjacent to the positions of the two guide rods; the laser emitted by the photoelectric sensor transmitting end is not blocked by the plunger, and the laser emitted by the photoelectric sensor transmitting end is blocked when the cylinder falls onto the pile seat.
[0009] The better technical solution of the utility model is as follows: the data processing unit includes a signal-connected PCL control unit and an encoder data conversion unit; the data processing unit is fixed in the pile driver storage slot, one end of which is connected to the pile driver's power supply box through a power cord and powered by the power supply box, and the other end is respectively connected to the photoelectric sensor transmitting end, the photoelectric sensor receiving end and the wire displacement meter signal through a data transmission line; the encoder data conversion unit is used to realize the signal conversion between the laser photoelectric sensor and the PCL control unit, and realize the one-way conversion between the electrical signal and the RS485 signal, so as to be used for real-time collection and uploading of RS485 signal data.
[0010] The preferred technical solution of the utility model is as follows: the photoelectric sensor transmitting end and the photoelectric sensor receiving end are respectively fixed on the pile seat through a pipe clamp fixing bracket, and the two are at the same height, and the laser signal emitted by the photoelectric sensor transmitting end is received through the photoelectric sensor receiving end.
[0011] The better technical solution of the utility model is as follows: the protective sleeve is a steel pipe with a diameter of 16 mm and a length of 5 cm, and an internal thread matching the photoelectric sensor transmitting end and the photoelectric sensor receiving end is provided at one end of the protective sleeve, which is directly screwed on the ends of the photoelectric sensor transmitting end and the photoelectric sensor receiving end, and the ends of the photoelectric sensor transmitting end and the photoelectric sensor receiving end are covered respectively.
[0012] The better technical solution of the utility model is as follows: the support rod is an L-shaped steel bar welded to the top of the guide rod, the box of the wire displacement meter is fixed on the iron plate of the pile driver platform parallel to the diesel hammer, the wire length of the wire displacement meter is 25 to 30 meters, and a nut is bound at its end and fixed to the L-shaped steel bar by welding the nut.
[0013] The preferred technical solution of the utility model is as follows: the data acquisition device further comprises a construction control module connected to the data processing unit signal, and the construction control module is connected to the control end signal of the diesel pile hammer;
[0014] The construction control module includes a display unit and a data calling unit; the display unit is used to receive and display the signals of the number of hammer blows, the depth of burial, the start time of construction, the connection of piles, the end time of construction, the pile setting, and the pile foundation status of the prefabricated piles processed by the data processing unit; the data calling unit is used to call the data stored in the data processing unit and control the start and stop of the diesel pile hammer.
[0015] The end of the protective sleeve is longer than the end of the sensor, and can wrap the transmitting end and the receiving end for protection. The utility model converts the optical signal into an electrical signal through the change of light and transmits it to the control unit for data storage and processing. When the diesel hammer cylinder hammers up and down, the cylinder will block the light reception once, and the number of hammering is recorded as 1 time, and the number of receptions is recorded as the number of hammering; the box of the wire displacement meter is fixed on the iron plate of the pile driver platform parallel to the hammer head, and the wire end is bound with a nut. An L-shaped steel bar is welded outward from the top of the pile hammer guide rod, and the nut is passed through the steel bar for welding and fixing. When the pile hammer rises, the steel wire rope in the displacement meter is pulled, and the steel wire rope drives the precision potentiometer to rotate synchronously until the pile hammer is lifted to the highest point of the pile section and stops stretching. After the pile section welding is completed, the hammer body starts to hammer downward, and the pile hammer moves downward. The self-contracting constant force machine inside the displacement meter automatically recycles the steel wire rope, and can keep the tension of the steel wire rope unchanged, so that the output power is linearly related to the expansion and contraction of the steel wire rope, and the mechanical movement is converted into an electrical signal and transmitted to the data processing unit through the change of the length of the steel wire. In the initial stage, the pile hammer is placed at the bottom of the pile driver, and the length of the wire pulled out of the wire displacement meter is the initial length. When the pile driver lifts the pile upward, the guide rod on the pile hammer drives the external L-shaped steel bar to the top. At this time, the difference between the length of the wire pulled out of the wire displacement meter and the initial length is the starting length of the pile section. When piling begins, as the hammer body hammers downward, the displacement meter wire is retracted, and the difference between the pulled out length and the initial length is the driving depth of the pile section. When the displacement meter wire is retracted to the initial length, the pile driving process is completed.
[0016] The utility model records the construction data of prefabricated pipe piles through the data acquisition module, eliminates data errors caused by human factors, ensures data accuracy, and provides a reference basis for pile foundation acceptance; and the collected construction data can also directly interact with the construction report automatic generation program to provide reliable data for the construction record report of the later construction acceptance, ensure data authenticity, and improve construction efficiency; in addition, the utility model can also supervise the pile foundation construction process through the construction control module throughout the process, avoid cutting corners, and ensure that the pile foundation is constructed according to the design plan. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a front view of the utility model in use;
[0018] Figure 2 It is a side view of the utility model in use state;
[0019] Figure 3 This is a top view of the utility model in use;
[0020] Figure 4 It is a block diagram of the working principle of the utility model;
[0021] In the figure: 1—photoelectric sensor transmitting end, 2—photoelectric sensor receiving end, 3—pipe clamp fixing bracket, 4—protective sleeve, 5—pull wire displacement meter, 6—pull wire, 7—support rod, 8—guide rod, 9—data processing unit, 10—pile driver platform, 11—power supply box, 12—diesel hammer, 13—cylinder, 14—pile seat, 15—pile cap, 16—plunger, 17—power line, 18—data transmission line. DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments. Figures 1 to 4 The drawings are all of embodiments, which are drawn in a simplified manner and are only used for the purpose of clearly and concisely illustrating the embodiments of the utility model. The following technical solutions shown in the drawings are specific solutions of the embodiments of the utility model and are not intended to limit the scope of the utility model to be protected. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.
[0024] The embodiment provides a data acquisition device for diesel pile hammer construction, such as Figures 1 to 3As shown, it is installed on a diesel pile hammer driver, the diesel pile hammer driver includes a pile driver platform 10, a pile seat 14 and a guide rod 8, a diesel hammer 12 is slidably installed on the guide rod 8, two guide rods 8 are provided, the diesel hammer 12 is slidably installed on the two guide rods 8, a cylinder 13 is provided below the diesel hammer 12, a plunger 16 matching the cylinder 13 is provided on the pile seat 14, and a pile cap 15 is provided below the plunger 16. The data acquisition device includes a data processing unit 9, a laser photoelectric sensor and a wire displacement meter 5, the photoelectric sensor transmitting end 1 and the photoelectric sensor receiving end 2 of the laser photoelectric sensor are symmetrically arranged on both sides of the hammering area of the pile seat 14, the photoelectric sensor transmitting end 1 and the photoelectric sensor receiving end 2 are respectively fixed on the pile seat 14 through a pipe clamp fixing bracket 3, and the two have the same height, and receive the laser signal emitted by the photoelectric sensor transmitting end 1 through the photoelectric sensor receiving end 2; the pipe clamp fixing bracket 3 adopts a pipe clamp fixing bracket that can be directly purchased on the market, and the diameter can be adjusted in the range of 10-16mm. The photoelectric sensor transmitting end 1 and the photoelectric sensor receiving end 2 are symmetrically arranged on both sides in front of the plunger 16, adjacent to the positions of the two guide rods 8; the laser emitted by the photoelectric sensor transmitting end 1 is not blocked by the plunger 16, and the laser emitted by the photoelectric sensor transmitting end 1 is blocked when the cylinder 13 falls on the pile seat 14. Since the transmitting end and the receiving end of the photoelectric sensor are installed on the pile driver, they are easily affected by the oil smoke of the pile driver. In order to protect the transmitting end and the receiving end from the oil smoke, a protective sleeve 4 is provided outside the photoelectric sensor transmitting end 1 and the photoelectric sensor receiving end 2. The protective sleeve 4 is a steel pipe with a diameter of 16mm and a length of 5cm. One end of the protective sleeve 4 is provided with an internal thread matching the photoelectric sensor transmitting end 1 and the photoelectric sensor receiving end 2, which is directly screwed on the ends of the photoelectric sensor transmitting end 1 and the photoelectric sensor receiving end 2, and the ends of the photoelectric sensor transmitting end 1 and the photoelectric sensor receiving end 2 are covered respectively.
[0025] The embodiment provides a data acquisition device for diesel pile hammer construction, such as Figures 1 to 3As shown, the data processing unit 9 and the wire displacement meter 5 are both arranged on the pile driver platform 10. A support rod 7 parallel to the diesel hammer 12 is welded at the top of the guide rod 8. The support rod 7 is an L-shaped steel bar welded at the top of the guide rod 8. The support rod 7 extends horizontally to the top of the wire displacement meter 5. The box of the wire displacement meter 5 is fixed on the iron plate of the pile driver platform 10 parallel to the diesel hammer 12. The wire 6 of the wire displacement meter is 30m long and is made of steel wire. A nut is bound at its end and is fixed to the L-shaped steel bar by welding. The guide rod 8 and the diesel hammer 12 together form a pile hammer structure. The guide rod 8 is a component of the pile hammer and moves with the pile hammer. When the pile hammer is lifted and lowered, the steel wire 6 of the wire displacement meter 5 is stretched and recovered. The length of the pile section and the driving depth are measured by the difference between the extension and contraction amount of the wire 6 and the initial length. In the initial stage, the pile hammer is placed at the bottom of the pile driver, and the length of the displacement meter wire pulled out is the initial length. When the pile driver lifts the pile upward, the upper guide rod of the pile hammer drives the external L-shaped steel bar to the top. At this time, the difference between the length of the displacement meter wire pulled out and the initial length is the starting length of the pile segment. When the pile driving starts, as the hammer body hammers downward, the displacement meter wire is recovered, and the difference between the pulled out length and the initial length is the driving depth of the pile segment. When the displacement meter wire is recovered to the initial length, the driving process of the pile segment is completed. Moreover, when the pile hammer rises as a whole, the inner pull wire 6 of the displacement meter is pulled, and the pull wire 6 drives the precision potentiometer to rotate synchronously until the pile hammer is lifted to the highest point of the pile segment and stops stretching. After the welding of the pile segment is completed, the hammer body starts to hammer downward, and the pile hammer moves downward. The self-contracting constant force machine inside the displacement meter automatically recycles the pull wire 6, and can keep the tension of the pull wire 6 unchanged, so that the output power is linearly related to the expansion and contraction of the pull wire 6. The mechanical motion is converted into an electrical signal through the change in the length of the pull wire 6 and transmitted to the data processing unit.
[0026] The embodiment provides a data acquisition device for diesel pile hammer construction, such as Figures 1 to 3 As shown, the photoelectric sensor transmitting end 1, the photoelectric sensor receiving end 2 and the signal output end of the wire displacement meter 5 are all connected to the signal output end of the data processing unit 9. Figure 4As shown, the data processing unit 9 includes a PCL control unit and an encoder data conversion unit connected in signal connection; the data processing unit 9 is fixed in the pile driver storage slot, one end of which is connected to the power supply box 11 of the pile driver through a power line 17, and is powered by the power supply box 11, and the other end is respectively connected to the photoelectric sensor transmitting end 1, the photoelectric sensor receiving end 2 and the wire displacement meter 5 through a data transmission line 18; the encoder data conversion unit is used to realize the signal conversion between the laser photoelectric sensor and the PCL control unit, and realize the one-way conversion between the electrical signal and the RS485 signal, so as to be used for real-time collection and uploading of RS485 signal data. The data acquisition device also includes a construction control module connected to the data processing unit 9 by signal, and the construction control module is connected to the control end of the diesel pile hammer by signal; the construction control module includes a display unit and a data calling unit; the display unit is used to receive and display the signals of the number of hammer blows, the depth of burial, the start time of construction, the connection of piles, the end time of construction, the setting of piles, and the status of pile foundation of the prefabricated piles processed by the data processing unit 9; the data calling unit is used to call the data stored in the data processing unit 9 and control the start and stop of the diesel pile hammer.
[0027] The utility model is suitable for a guide rod type diesel hammer pile driver, which uses a plunger 16 as a hammer seat pressed on a pile cap 15, and uses a cylinder 13 as a hammer head to rise and fall along two guide rods 18. When driving piles, the pile is first hoisted into position in the pile frame gantry, and then the diesel hammer 12 is placed on the top of the pile, the hook is lowered to lift the cylinder 13, and the hook is detached to let the cylinder 13 fall and be inserted into the plunger 16, so that the air enclosed in the cylinder 13 is compressed, and the cylinder 13 continues to fall until the pressure pin outside the cylinder body pushes the rocker of the fuel pump on the hammer seat, and the fuel pump sprays oil mist into the cylinder, and the oil mist encounters high-temperature gas above the ignition point, and immediately explodes, and the explosive force impacts downward to make the pile sink, and pushes upward to make the cylinder rise, and when the cylinder falls along the guide rod again, the second impact cycle begins again.
[0028] Based on the working principle of the guide rod diesel hammer pile driver, the utility model is installed on the guide rod diesel hammer pile driver in the embodiment. The photoelectric sensor has a sensing distance of 0-5m. The cylinder 13 falls once to block the light between the photoelectric sensors, and the light signal changes, outputs high and low levels, and transmits them to the data processing unit 9 through the data transmission line 18. After data processing, the number of hammer strikes is formed. The utility model adopts a pull-wire sensor with a range of 30m. When the pile hammer and the platform move relative to each other, an electrical signal proportional to the distance moved by the pull rope is output. The displacement of the pile hammer can be obtained by measuring the output signal, and the depth of the pile into the soil can be obtained by calculating the displacement of the pile hammer moving downward. The photoelectric sensor and the pull-wire displacement meter 5 are both powered and transmitted through the data transmission line, and the power supply box 11 supplies power to the data processing unit 9 through the power connection line 10.
[0029] The construction process of hammer piles of the utility model is: positioning and laying out of pile positions and checking → positioning of pile drivers → lifting of prefabricated piles → positioning of piles → correction of pile verticality → welding of pile tips → pile sinking by hammering → pile connection → pile sinking by hammering → checking that pile top elevation and pile length meet design requirements → moving the pile driver to the next pile position. In view of its construction process, the utility model also provides a construction control module for controlling the construction data collection. The first step is to configure the pile foundation information. Click "pile foundation number" to select the pile foundation to be constructed, select "equipment number" to bind the data processing unit for identifying the pile driver equipment, and select "design pile information" to view or enter the pile segment information; the second step is to control the construction data collection. Before the first pile segment starts to be lifted, click "start", and the recorded time is the start time of the pile foundation construction. After the first pile is driven, the second pile segment is lifted to the start of welding. Click "pile connection", select general welding as the welding method, and the start time of pile connection can be recorded. When the vertical displacement of the second pile changes, the pile connection is completed, and the end time of pile connection is recorded. The pile connection welding time is also an important indicator for determining the welding level between pile segments. After the recording is completed, the recorded data can be stored.
[0030] In order to facilitate the viewing of pile foundation construction status and reduce the workload of supervisors, a display unit is set in the construction control module to display the above data. The displayed data may include pile top elevation, ground elevation, soil layer information, soil penetration depth, and pile bottom elevation.
[0031] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A construction data acquisition device for a diesel pile hammer, installed on a diesel pile hammer, the diesel pile hammer comprising a pile driver platform (10), a pile seat (14) and a guide rod (8), a diesel hammer (12) being slidably mounted on the guide rod (8), characterized in that: The data acquisition device comprises a data processing unit (9), a laser photoelectric sensor and a wire displacement meter (5), wherein a photoelectric sensor transmitting end (1) and a photoelectric sensor receiving end (2) of the laser photoelectric sensor are symmetrically arranged on both sides of the hammering area of the pile seat (14), and a protective sleeve (4) is provided outside the photoelectric sensor transmitting end (1) and the photoelectric sensor receiving end (2), and when the diesel hammer (12) falls into the hammering area of the pile seat (14), the protective sleeve (4) is located between the photoelectric sensor transmitting end (1) and the photoelectric sensor receiving end (2), and the photoelectric sensor transmitting end (1) is placed between the photoelectric sensor transmitting end (1) and the photoelectric sensor receiving end (2). The emitted laser is shielded; the data processing unit (9) and the wire displacement meter (5) are both arranged on the pile driver platform (10); a support rod (7) parallel to the diesel hammer (12) is welded to the top of the guide rod (8); the support rod (7) extends horizontally to the top of the wire displacement meter (5); the end of the wire (6) of the wire displacement meter (5) is fixed to the end of the support rod (7); the photoelectric sensor transmitting end (1), the photoelectric sensor receiving end (2) and the signal output end of the wire displacement meter (5) are all connected to the signal output end of the data processing unit (9).
2. A construction data acquisition device for a diesel pile hammer according to claim 1, characterized in that: Two guide rods (8) are provided, the diesel hammer (12) is slidably mounted on the two guide rods (8), a cylinder (13) is provided below the diesel hammer (12), a plunger (16) matching the cylinder (13) is provided on the pile seat (14), and a pile cap (15) is provided below the plunger (16); the photoelectric sensor transmitting end (1) and the photoelectric sensor receiving end (2) are symmetrically arranged on both sides in front of the plunger (16) and adjacent to the two guide rods (8); the laser emitted by the photoelectric sensor transmitting end (1) is not blocked by the plunger (16), and the laser emitted by the photoelectric sensor transmitting end (1) is blocked when the cylinder (13) falls onto the pile seat (14).
3. The construction data acquisition device for a diesel pile hammer according to claim 1 is characterized in that: The data processing unit (9) comprises a PCL control unit and an encoder data conversion unit which are signal-connected. The data processing unit (9) is fixed in the pile driver storage slot, one end of which is connected to the pile driver's power supply box (11) via a power line (17) and is powered by the power supply box (11), and the other end of which is signal-connected to the photoelectric sensor transmitting end (1), the photoelectric sensor receiving end (2) and the wire displacement meter (5) via a data transmission line (18). The encoder data conversion unit is used to realize signal conversion between the laser photoelectric sensor and the PCL control unit, and to realize unidirectional conversion between electrical signals and RS485 signals, thereby being used to collect and upload RS485 signal data in real time.
4. A construction data acquisition device for a diesel pile hammer according to claim 1 or 2, characterized in that: The photoelectric sensor transmitting end (1) and the photoelectric sensor receiving end (2) are respectively fixed on the pile seat (14) via a pipe clamp fixing bracket (3), and the two are at the same height, and the laser signal emitted by the photoelectric sensor transmitting end (1) is received via the photoelectric sensor receiving end (2).
5. A construction data acquisition device for a diesel pile hammer according to claim 1 or 2, characterized in that: The protective sleeve (4) is a steel pipe with a diameter of 16 mm and a length of 5 cm. An internal thread matching the photoelectric sensor transmitting end (1) and the photoelectric sensor receiving end (2) is provided at one end of the protective sleeve (4), and is directly screwed onto the ends of the photoelectric sensor transmitting end (1) and the photoelectric sensor receiving end (2), and covers the ends of the photoelectric sensor transmitting end (1) and the photoelectric sensor receiving end (2), respectively.
6. A construction data acquisition device for a diesel pile hammer according to claim 1 or 2, characterized in that: The support rod (7) is an L-shaped steel bar welded to the top of the guide rod (8). The housing of the wire displacement meter (5) is fixed on an iron plate of the pile driver platform (10) parallel to the diesel hammer (12). The wire (6) of the wire displacement meter is 25 to 30 m long, and a nut is bound to the end thereof and fixed to the L-shaped steel bar by welding the nut.
7. The construction data acquisition device for a diesel pile hammer according to claim 3 is characterized by: The data acquisition device further comprises a construction control module connected to the data processing unit (9) by signals, the construction control module being connected to the control end of the diesel pile hammer by signals; the construction control module comprises a display unit and a data calling unit; the display unit is used to receive signals of the number of hammer blows, the depth of burial, the start time of construction, the connection of piles, the end time of construction, the pile arrangement, and the pile foundation status of the prefabricated piles processed by the data processing unit (9), and to display them; the data calling unit is used to call the data stored in the data processing unit (9) and control the start and stop of the diesel pile hammer.