Wheel-mounted automatic light dynamic sounding detector

Abstract

The utility model provides a kind of wheeled automatic light power sounding detector, including moving trolley, the detection cabinet of being slidably matched with it in vertical direction is arranged on the moving trolley, sounding rod is fixed in the detection cabinet, and the bottom of the sounding rod is out of the bottom of the detection cabinet, and probe is fixed;Gravity hammer is sleeved with it on the sounding rod, and the impact surface matched with the gravity hammer is arranged on the sounding rod;The top of the gravity hammer has vertical rod;Driving device is fixed on the side wall of the detection cabinet, and the driving device includes motor fixed on the outer wall of the detection cabinet, the output shaft of the motor is equipped with carousel, gear disc in fan shape is detachably connected on the carousel, the outer edge of the gear disc has outer gear, the outer wall of the vertical rod has rack matched with the outer gear.The technical scheme of the utility model solves the problems of complicated sounding detection process and inconvenient instrument movement in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of dynamic penetrometer testing, and in particular to a wheeled automatic lightweight dynamic penetrometer testing instrument. Background Technology

[0002] Penetration testing (PT) is an in-situ testing technique. Its core principle involves using a standard-weight drop hammer, dropped freely from a predetermined height, to apply an instantaneous impact load to a vertically positioned probe system. The impact energy is transferred through the probe to a standard-sized conical probe connected to its bottom, causing the probe to overcome soil resistance and penetrate downwards. By precisely measuring and recording the cumulative penetration depth of the probe after a specific number of consecutive hammer blows, or the number of blows corresponding to a specific penetration depth, the penetration resistance index of the soil layer can be quantitatively characterized. This resistance index is significantly correlated with the soil's density, shear strength, and other mechanical properties, as well as the homogeneity of the strata, thus providing important data for geotechnical engineering investigation, foundation testing, and evaluation.

[0003] Currently, penetrometer testing equipment consists of a penetrometer rod with a conical probe fixed to its bottom. A gravity hammer is fitted over the rod, and the hammer is manually raised to a specified height before falling freely to strike the probe, thus achieving the detection. The drawback of this method is its heavy reliance on manual labor, and the need for constant movement of the equipment due to the numerous testing points is time-consuming and labor-intensive. Therefore, a powered penetrometer testing instrument that enables efficient testing and is easily movable is needed. Utility Model Content

[0004] The technical means adopted in this utility model are as follows:

[0005] A wheeled automatic lightweight powered penetrometer includes a mobile trolley with a detection cabinet that slides vertically on the trolley. A penetrometer rod is fixed inside the detection cabinet, with its bottom extending through the bottom of the cabinet and fitted with a probe. A gravity hammer is fitted onto the penetrometer rod, and the rod has an impact surface that engages with the gravity hammer. The gravity hammer has a vertical rod at its top. A drive device is fixed to the side wall of the detection cabinet, including a motor fixed to the outer wall of the cabinet. A turntable is mounted on the motor's output shaft, and a fan-shaped gear disk is detachably connected to the turntable. The outer edge of the gear disk has external teeth, and the outer wall of the vertical rod has a rack that engages with the external teeth.

[0006] Preferably, the mobile trolley is equipped with a winch, and the wire rope on the winch is connected to an electromagnet after passing through a deflector wheel fixed on the mobile trolley. The electromagnet is used to attract the top of the testing cabinet.

[0007] Preferably, an infrared counter is installed inside the detection cabinet above the impact surface.

[0008] Preferably, a displacement sensor for detecting the penetration depth of the probe is fixed inside the detection cabinet.

[0009] Preferably, the mobile trolley includes a trolley body, wheels disposed at the bottom of the trolley body, a drive mechanism disposed within the trolley body for driving the wheels to move, and a control system; the control system is signal-connected to a remote controller, and the control system is electrically connected to the drive mechanism, the electromagnet switch, the motor switch, the winch switch, the infrared counter, and the displacement sensor.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1. This utility model, by setting up a mobile trolley, facilitates movement between different testing locations, frees up manpower, and enables automatic testing in flat areas.

[0012] 2. By utilizing the cooperation of a sector-shaped gear disk and a rack, the gravity hammer is periodically raised. After rising to a certain position, the gear disk and rack disengage, and the gravity hammer falls freely to impact the impact surface, thus achieving detection without manual operation.

[0013] 3. The detachable connection between the gear disk and the turntable facilitates the replacement of different gear disks, thereby adjusting the relative height between the rising gravity hammer and the impact surface.

[0014] 4. By using an infrared counter higher than the impact surface, the reciprocating impacts that occur during the impact of the gravity hammer can be prevented from being miscounted.

[0015] 5. By setting up an infrared counter and a displacement detector, the number of hammer blows and the penetration depth can be detected simultaneously.

[0016] 6. By setting up a winch and electromagnet, the detection cabinet can be raised after the penetration test is completed, preventing the detection cabinet from obstructing the movement of the trolley, and at the same time, it can achieve the effect of eliminating the need for manual removal of the probe. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a wheeled automatic light-duty power testing instrument.

[0019] Figure 2 This is a schematic diagram of the testing cabinet for a wheeled automatic light-duty power testing instrument.

[0020] In the diagram: 1. Mobile trolley; 2. Detection cabinet; 3. Penetrator; 4. Gravity hammer; 5. Impact surface; 6. Motor; 7. Turntable; 8. Gear disk; 9. Winch; 10. Electromagnet; 11. Infrared counter; 12. Displacement sensor. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-2 As shown, a wheeled automatic lightweight powered penetrometer includes a mobile trolley 1. A detection cabinet 2, which slides vertically on the trolley 1, is fixed inside the detection cabinet 2. The bottom of the detection rod 3 extends through the bottom of the detection cabinet 2 and is fitted with a probe. A gravity hammer 4 is fitted onto the detection rod 3, and an impact surface 5 is provided on the detection rod 3 to engage with the gravity hammer 4. The top of the gravity hammer 4 has a vertical rod. A drive device is fixed to the side wall of the detection cabinet 2. The drive device includes a motor 6 fixed to the outer wall of the detection cabinet 2. A turntable 7 is mounted on the output shaft of the motor 6. A fan-shaped gear disk 8 is detachably connected to the turntable 7. The outer edge of the gear disk 8 has external teeth, and the outer wall of the vertical rod has a rack that engages with the external teeth. The turntable 7 and the gear disk 8 have multiple corresponding through holes, and a pin is inserted through these through holes to achieve a detachable connection between the gear disk and the turntable.

[0023] The mobile trolley 1 is equipped with a winch 9. The wire rope on the winch 9 is connected to an electromagnet 10 after passing through a deflector wheel fixed on the mobile trolley 1. The electromagnet 10 is used to attract the top of the detection cabinet 2.

[0024] An infrared counter 11 is installed inside the detection cabinet 2 above the impact surface 5.

[0025] The detection cabinet 2 is equipped with a displacement sensor 12 for detecting the penetration depth of the probe.

[0026] The mobile trolley 1 includes a trolley body, wheels disposed at the bottom of the trolley body, a drive mechanism disposed within the trolley body for driving the wheels to move, and a control system; the control system is signal-connected to a remote controller, and the control system is electrically connected to the drive mechanism, the electromagnet switch, the motor switch, the winch switch, the infrared counter, and the displacement sensor.

[0027] In operation: Select a suitable gear disk 8 according to the testing requirements, and then install the gear disk 8 on the turntable 7. Move the trolley 1 to the testing position, lower the testing cabinet 2 with the winch 9, and the probe touches the ground. Then turn off the electromagnet switch, and the winch 9 resets the electromagnet 10. Start the motor 6, and the outer teeth of the fan-shaped gear disk 8 mesh with the rack, driving the gravity hammer 4 to rise. The probe rod 3 becomes the guide post in the vertical direction of the gravity hammer 4. After the gear disk 8 rotates a certain distance, the gear disk 8 disengages from the rack. At this time, the height between the gravity hammer 4 and the impact surface 5 is the set height. The gravity hammer 4 falls freely and impacts the impact surface 5, and then the probe penetrates into the ground. The displacement sensor 12 and the infrared counter 11 perform displacement detection and counting monitoring. Repeat the above operation until the detection at this point is completed. The trolley 1 moves to the next point and repeats the above operation.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wheeled automatic lightweight powered penetrometer, characterized in that, The device includes a mobile trolley with a detection cabinet that slides vertically thereon. A probe rod is fixed inside the detection cabinet, with its bottom extending through the bottom of the cabinet and fitted with a probe. A gravity hammer is fitted onto the probe rod, and the probe rod has an impact surface that engages with the gravity hammer. The gravity hammer has a vertical rod at its top. A drive device is fixed to the side wall of the detection cabinet. The drive device includes a motor fixed to the outer wall of the detection cabinet, with a turntable mounted on the motor's output shaft. A fan-shaped gear disk is detachably connected to the turntable, and the outer edge of the gear disk has external teeth. A rack that engages with the external teeth is located on the outer wall of the vertical rod.

2. The wheeled automatic lightweight dynamic penetrometer according to claim 1, characterized in that, The mobile trolley is equipped with a winch, and the wire rope on the winch is connected to an electromagnet after passing through a reversing wheel fixed on the mobile trolley. The electromagnet is used to attract the top of the testing cabinet.

3. The wheeled automatic lightweight powered penetrometer according to claim 2, characterized in that, An infrared counter is installed inside the detection cabinet above the impact surface.

4. The wheeled automatic lightweight dynamic penetrometer according to claim 3, characterized in that, The detection cabinet contains a displacement sensor for detecting the penetration depth of the probe.

5. A wheeled automatic lightweight dynamic penetrometer according to claim 4, characterized in that, The mobile trolley includes a trolley body, wheels disposed at the bottom of the trolley body, a drive mechanism disposed within the trolley body for driving the wheels to move, and a control system; the control system is signal-connected to a remote controller, and the control system is electrically connected to the drive mechanism, the electromagnet switch, the motor switch, the winch switch, the infrared counter, and the displacement sensor.

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