Hydraulic oil cylinder limiting early warning device of static sounding vehicle

Abstract

The utility model discloses a static sounding vehicle hydraulic oil cylinder limit early warning device which comprises a detection device, a monitoring device and an early warning device, the detection device is electrically connected with the monitoring device, and the monitoring device is electrically connected with the early warning device; the detection device comprises a photoelectric sensor installed on a static sounding vehicle data acquisition table and a reflecting plate installed on the side wall of a hydraulic cylinder outer barrel, and the reflecting plate is used for reflecting laser signals emitted by the photoelectric sensor. When the photoelectric sensor receives the laser signal reflected by the reflecting plate, the monitoring device controls the early warning device to give an alarm. The lifting height early warning device can be used for limiting and early warning the lifting height of the hydraulic cylinder in the feeler lever recovery process so as to remind an operator to stop the lifting action of the hydraulic cylinder and protect the ceiling of the static sounding vehicle and the hydraulic cylinder from being damaged due to the overlarge lifting stroke of the outer barrel of the hydraulic cylinder, and the test work cannot be carried out; and the operator does not need to frequently raise the head to observe the hydraulic cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of static cone penetration. More specifically, the utility model relates to a hydraulic cylinder limit warning device for a static cone penetration vehicle. Background Technique

[0002] The land static cone penetration test is a method of in-situ testing. Usually, a static cone penetration vehicle is used for testing. During the testing process, the hydraulic cylinder and the rod gripper, generally an upper and lower hydraulic clamp, are controlled to drive the rod to be lowered or pulled out. When the rod is pulled out, the outer cylinder of the hydraulic cylinder will rise. However, the space inside the static cone penetration vehicle is limited, and the stroke of the hydraulic cylinder is greater than the maximum height of the space inside the static cone penetration vehicle. When the outer cylinder of the hydraulic cylinder rises, if it is not stopped in time, the outer cylinder of the hydraulic cylinder will collide with and squeeze the ceiling of the static cone penetration vehicle. When the outer cylinder of the hydraulic cylinder collides with the ceiling of the static cone penetration vehicle, first, it will cause the ceiling of the static cone penetration vehicle to be damaged by the hydraulic cylinder, resulting in safety problems; second, it may cause the ceiling of the static cone penetration vehicle to be unable to be lifted or lowered anymore, which will lead to the consequence that the subsequent work cannot be carried out; third, due to the collision between the outer cylinder of the hydraulic cylinder and the ceiling of the static cone penetration vehicle, the ceiling will squeeze the hydraulic cylinder, resulting in damage to the hydraulic cylinder, posing a safety threat to the operators inside the vehicle, and making it impossible to carry out subsequent static cone penetration tests.

[0003] To solve the above problems, the following methods are usually adopted in the prior art: During the process of the operator operating the hydraulic cylinder to rise, always observe the relative position between the outer cylinder of the hydraulic cylinder and the ceiling of the static cone penetration vehicle, and stop in time when the outer cylinder of the hydraulic cylinder is about to touch the ceiling. This method requires the operator to focus all attention on the hydraulic cylinder and cannot be distracted. If the operator is distracted by external things, it is easy to cause the hydraulic cylinder to hit the ceiling. This method will also cause the operator to look up frequently, which is likely to make the operator fatigued and affect the subsequent static cone penetration test. The implementation of the above methods does not effectively solve the problem of hydraulic cylinder limit, and there is an urgent need to seek a method with good hydraulic cylinder limit warning effect, labor saving, and low cost for the static cone penetration vehicle. Summary of the Invention

[0004] Another object of the utility model is to provide a hydraulic cylinder limit warning device for a static cone penetration vehicle with good limit warning effect, labor saving, and low cost.

[0005] To achieve these objects and other advantages according to the utility model, a hydraulic cylinder limit warning device for a static cone penetration vehicle is provided, including a detection device, a monitoring device, and a warning device. The detection device is electrically connected to the monitoring device, and the monitoring device is electrically connected to the warning device;

[0006] The detection device includes a photoelectric sensor installed on the data acquisition platform of the static cone penetration vehicle and a reflector installed on the side wall of the outer cylinder of the hydraulic cylinder. The reflector is used to reflect the laser signal emitted by the photoelectric sensor. When the photoelectric sensor receives the laser signal reflected by the reflector, the monitoring device controls the warning device to issue an alarm.

[0007] Preferably, the monitoring device is composed of a DC power supply and a relay module.

[0008] Preferably, the warning device is a warning light.

[0009] Preferably, the warning device further includes a warning buzzer, which is electrically connected to the warning light.

[0010] Preferably, the warning device and the monitoring device are installed on the data acquisition platform and are arranged close to the photoelectric sensor.

[0011] Preferably, connection components are welded on the data acquisition platform and the side wall of the outer cylinder of the hydraulic cylinder. The photoelectric sensor and the reflector are respectively installed on the data acquisition platform and the side wall of the outer cylinder of the hydraulic cylinder through the corresponding connection components.

[0012] The utility model has at least the following beneficial effects: For the hydraulic cylinder limit warning device of the static cone penetration vehicle provided by the utility model, by installing the photoelectric sensor on the data acquisition platform and the reflector on the side wall of the outer cylinder of the hydraulic cylinder, during the rising process of the hydraulic cylinder, the reflector rises accordingly. When the reflector reaches the same height position as the photoelectric sensor, the light beam emitted by the emitter in the photoelectric sensor is reflected by the reflector and then received by the receiver in the photoelectric sensor. Then, through the photoelectric conversion module built in the photoelectric sensor, the optical signal is converted into an electrical signal and output. After the output electrical signal reaches the relay module, the normally open contact of the relay module closes, and the warning light lights up, thereby reminding the operator that the outer cylinder of the hydraulic cylinder has reached the maximum allowable height at this moment, and the hydraulic cylinder needs to be stopped from rising, so as to avoid the outer cylinder of the hydraulic cylinder hitting the ceiling of the static cone penetration vehicle. Through the warning method, it is also convenient for the operator to understand the position of the outer cylinder of the hydraulic cylinder and does not need to frequently look up to observe the hydraulic cylinder.

[0013] Other advantages, objectives and features of the utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a hydraulic cylinder limit warning device for a static cone penetration vehicle according to an embodiment of the utility model;

[0015] Explanation of the reference numerals in the drawings of the specification:

[0016] 1. Hydraulic cylinder outer cylinder; 2. Data acquisition platform; 3. Warning light; 4. Relay module; 5. DC power supply; 6. Reflector; 7. Photoelectric sensor. Specific implementation mode

[0017] The following further elaborates on the present utility model in conjunction with the attached drawings, so that those skilled in the art can implement it with reference to the text of the specification.

[0018] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by terms such as "horizontal", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0019] As Figure 1 shown, the present utility model provides a hydraulic cylinder limit warning device for a static cone penetration vehicle, including a detection device, a monitoring device, and a warning device. The detection device is electrically connected to the monitoring device, and the monitoring device is electrically connected to the warning device;

[0020] The detection device includes a photoelectric sensor 7 installed on the data acquisition platform 2 of the static cone penetration vehicle and a reflector 6 installed on the side wall of the hydraulic cylinder outer cylinder 1. The reflector 6 is used to reflect the laser signal emitted by the photoelectric sensor 7; when the photoelectric sensor 7 receives the laser signal reflected by the reflector 6, the monitoring device controls the warning device to issue an alarm;

[0021] Further, the monitoring device is composed of a DC power supply 5 and a relay module 4;

[0022] Still further, the warning device is a warning light 3.

[0023] The detection device includes a photoelectric sensor 7 and a reflector 6. The photoelectric sensor 7 is a reflective photoelectric sensor, which is installed on the data acquisition table 2, and the reflector 6 is installed on the outer cylinder 1 of the hydraulic cylinder. The detection device is used to detect whether the outer cylinder 1 of the hydraulic cylinder has risen to the maximum allowed height, and the warning device is used to give a warning when the outer cylinder 1 of the hydraulic cylinder rises to the maximum height; the installation positions of the photoelectric sensor 7 and the reflector 6 need to be determined after accurate measurement according to the maximum allowed rising height of the outer cylinder 1 of the hydraulic cylinder, and before the formal detection, multiple tests need to be carried out to ensure the accuracy during the formal use. Specifically: when using the static cone penetration vehicle for testing, during the process of the operator operating the hydraulic cylinder to rise, the outer cylinder 1 of the hydraulic cylinder rises, and the reflector 6 installed on the outer cylinder 1 of the hydraulic cylinder rises accordingly. When the reflector 6 reaches the same height as the photoelectric sensor 7, the reflector 6 will reflect the light beam emitted by the photoelectric sensor 7. After the reflected light beam is received by the photoelectric sensor 7, it is converted into an electrical signal by the photoelectric sensor 7 and transmitted to the relay module 4. When the relay module 4 receives the signal, the normally open contact closes, and the warning light 3 lights up to warn the operator that the outer cylinder 1 of the hydraulic cylinder has reached the maximum allowed height. The utility model monitors and limits the warning of the rising height of the hydraulic cylinder during the recovery process of the sounding rod through the limit warning device, which can timely remind the operator to stop the action of the hydraulic cylinder rising, and protect the static cone penetration vehicle ceiling and the hydraulic cylinder from being damaged due to the excessive rising stroke of the outer cylinder 1 of the hydraulic cylinder, so that the test work cannot be carried out; through the warning method, it is also convenient for the operator to understand the position of the outer cylinder 1 of the hydraulic cylinder without having to frequently look up to observe the hydraulic cylinder; using the reflective photoelectric sensor 7 as the laser emission device and the laser receiving device simplifies the wiring steps compared with the sensor with the emitter and the receiver separated.

[0024] In another technical solution, the warning device further includes a warning buzzer, which is electrically connected to the warning light 3.

[0025] In this technical solution, when the warning light 3 lights up for warning, the buzzer is triggered to work, realizing the prompt for the operator from both the sound and the sight aspects.

[0026] In another technical solution, the warning device and the monitoring device are installed on the data acquisition table 2 and are arranged close to the photoelectric sensor 7.

[0027] In this technical solution, the warning device and the monitoring device are installed on the data acquisition table 2 close to the photoelectric sensor 7, which is convenient for the connection among the three. At the same time, the warning device is installed on the data acquisition table 2, which is convenient for the operator to notice in time during the data acquisition process, ensuring the timeliness of the monitoring.

[0028] In another technical solution, a connection component is welded on the side wall of the data acquisition platform 2 and the outer cylinder 1 of the hydraulic cylinder, and the photoelectric sensor 7 and the reflector 6 are respectively installed on the side walls of the data acquisition platform 2 and the outer cylinder 1 of the hydraulic cylinder through the corresponding connection components.

[0029] In this technical solution, the connection component is a card slot or a platform, which is welded on the side walls of the data acquisition platform 2 and the outer cylinder 1 of the hydraulic cylinder. The photoelectric sensor 7 and the reflector 6 are installed on the side walls of the data acquisition platform 2 and the outer cylinder 1 of the hydraulic cylinder through the card slots or platforms at the corresponding positions, which can prevent the static cone penetration vehicle from moving during the detection test or movement, thus affecting the accuracy and timeliness of the hydraulic cylinder limit warning device of the static cone penetration vehicle.

[0030] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and the illustrated examples here.

Claims

1. A hydraulic cylinder limit warning device for a static cone penetration vehicle, characterized in that, It includes a detection device, a monitoring device and an early warning device. The detection device is electrically connected to the monitoring device, and the monitoring device is electrically connected to the early warning device; The detection device includes a photoelectric sensor installed on the data acquisition table of the static cone penetration vehicle and a reflector installed on the side wall of the outer cylinder of the hydraulic cylinder. The reflector is used to reflect the laser signal emitted by the photoelectric sensor. When the photoelectric sensor receives the laser signal reflected by the reflector, the monitoring device controls the early warning device to give an alarm.

2. The hydraulic cylinder limit warning device for the static cone penetration vehicle according to claim 1, wherein The monitoring device consists of a DC power supply and a relay module.

3. The hydraulic cylinder limit warning device for the static cone penetration vehicle according to claim 1, wherein The early warning device is a warning light.

4. The static cone penetration vehicle hydraulic cylinder limit warning device according to claim 3, characterized in that, The early warning device further includes an early warning buzzer, which is electrically connected to the warning light.

5. The hydraulic cylinder limit warning device of the static cone penetration vehicle according to claim 1, characterized in that The early warning device and the monitoring device are installed on the data acquisition table and are arranged close to the photoelectric sensor.

6. The hydraulic cylinder limit warning device of the static cone penetration vehicle according to claim 1, characterized in that, A connection component is welded on the data acquisition table and the side wall of the outer cylinder of the hydraulic cylinder. The photoelectric sensor and the reflector are respectively installed on the data acquisition table and the side wall of the outer cylinder of the hydraulic cylinder through the corresponding connection components.

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