Human body stress distribution measuring device for simulating grain pile burying accident

Abstract

The utility model provides a human body stress distribution measuring device for simulating a grain pile burying accident. The human body stress distribution measuring device comprises a human body simulation model; the plurality of pressure detection devices are respectively arranged on the head part, the neck part, the chest part and the leg parts of the human body simulation model; the data receiver is arranged in the human body simulation model, electrically connected with the pressure detection devices and used for receiving and storing the pressure data measured by the pressure detection devices; by using the human body simulation model, the stress state of a real human body in a grain pile burying accident is highly simulated, so that a measurement result is closer to a real situation, pressure data of each position of the human body simulation model can be measured and stored at regular time, data distortion is avoided, and the human body pressure condition of a real grain pile burying person is truly reflected; and powerful support is provided for subsequent experimental data analysis and protection equipment research and development.

Description

Technical Field

[0001] The utility model relates to the technical field of safety assessment, in particular to a device for measuring the force distribution on the human body in simulating a grain pile burying accident. Background Art

[0002] During the grain storage and in-out operation, due to non-standard operation of personnel, situations such as personnel falling, slipping, dropping, and being buried by tilted grains due to the collapse or cracking of grain storage facilities are likely to occur, resulting in accidents of casualties and property losses.

[0003] At present, although research on grain pile burying accidents has been carried out, it is relatively difficult to test the pressure of an actual grain pile on the human body. The current methods mainly include two. One is to simulate the internal pressure of the grain pile through discrete element numerical simulation software such as PFC and EDEM. However, the internal pressure of the grain pile is complex and changeable with the flow of the grain pile, and the data obtained by software simulation are all under ideal conditions, with a large difference from the actual situation and unable to truly reflect the pressure on the human body. The other is to conduct grain pile burying accident experiments in a simulated experimental bin through pressure sensors. However, the simulated experimental bin is small, and directly measuring the pressure with pressure sensors to be equivalent to the pressure on the human body when a grain pile buries a person in actual situations also has a deviation from the actual situation.

[0004] Therefore, developing a device that can be applied in a real warehouse to measure the pressure distribution on the human body when a grain pile buries a person has become an urgent problem for those skilled in the art. Content of the Utility Model

[0005] The utility model provides a device for measuring the force distribution on the human body in simulating a grain pile burying accident, with a reasonable structural design. By setting a pressure measurement and receiving device, the measurement of the force distribution on the human body can be ensured.

[0006] The utility model provides a device for measuring the force distribution on the human body in simulating a grain pile burying accident, including: a human body simulation model;

[0007] A plurality of pressure detection devices, which are respectively arranged on the head, neck, chest and legs of the human body simulation model;

[0008] A data receiver, which is arranged in the human body simulation model, and the data receiver is electrically connected to each pressure detection device for receiving and storing the pressure data measured by the pressure detection device.

[0009] According to the human body force distribution measuring device for simulating the accident of a person being buried in a grain pile provided by the present utility model, the data receiver includes a circuit main board, a storage module, an expansion interface, and a wiring terminal. The wiring terminal is connected to the pressure detection device through a cable and is used for receiving data signals. The circuit main board is electrically connected to the expansion interface, the wiring terminal, and the storage module respectively.

[0010] According to the human body force distribution measuring device for simulating the accident of a person being buried in a grain pile provided by the present utility model, the expansion interface is electrically connected to the circuit main board through a connector and is used for realizing data transmission. The expansion interface is one of a USB port, a serial port, and a parallel port.

[0011] According to the human body force distribution measuring device for simulating the accident of a person being buried in a grain pile provided by the present utility model, the wiring terminal is connected to the circuit main board by welding or a connector and is used for transmitting the received data signals to the circuit main board.

[0012] According to the human body force distribution measuring device for simulating the accident of a person being buried in a grain pile provided by the present utility model, it further includes a timing transmitter. The timing transmitter is electrically connected to the circuit main board and is used for transmitting signals to the pressure detection device at preset time intervals.

[0013] According to the human body force distribution measuring device for simulating the accident of a person being buried in a grain pile provided by the present utility model, it further includes a power supply module. The power supply module is electrically connected to the pressure detection device and the data receiver and is used for providing electrical energy to the pressure detection device and the data receiver.

[0014] According to the human body force distribution measuring device for simulating the accident of a person being buried in a grain pile provided by the present utility model, the power supply module is a rechargeable battery.

[0015] According to the human body force distribution measuring device for simulating the accident of a person being buried in a grain pile provided by the present utility model, the pressure detection device is a pressure sensor.

[0016] According to the human body force distribution measuring device for simulating the accident of a person being buried in a grain pile provided by the present utility model, the pressure sensor adopts a strain type pressure sensor.

[0017] According to the human body force distribution measuring device for simulating the accident of a person being buried in a grain pile provided by the present utility model, the data receiver and the pressure detection device are connected through a four-core shielded cable.

[0018] A device for measuring the force distribution on the human body simulating a grain pile burying accident provided by the present utility model uses a human body simulation model to highly simulate the force-bearing state of a real human body in a grain pile burying accident. The human body simulation model can accurately reflect the structural characteristics and mechanical properties of various parts of the human body, making the measurement results closer to the real situation and providing a more accurate reference for accident rescue and protection. By arranging a plurality of pressure detection devices at key parts such as the head, neck, chest and legs of the human body simulation model, this multi-point layout can comprehensively capture the pressure conditions on various parts of the human body in the accident, especially the areas that are prone to injury or bear greater force, and more accurately evaluate the potential harm of the accident to the human body. Thus, the injury mechanism of the grain pile burying accident and the tolerance limit of various parts of the human body can be deeply understood, which helps to formulate more scientific and effective preventive measures and rescue plans, improve the efficiency and success rate of accident prevention and rescue, and reduce the probability and harm degree of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of a device for measuring the force distribution on the human body simulating a grain pile burying accident provided by an embodiment of the present utility model.

[0021] REFERENCE SIGNS:

[0022] 1. Human body simulation model; 2. Pressure detection device; 3. Data receiver. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model with reference to the drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model belong to the scope of protection of the present utility model.

[0024] The following will describe Figure 1 a device for measuring the force distribution on the human body simulating a grain pile burying accident of the present utility model.

[0025] A device for measuring the force distribution on the human body simulating a grain pile burying accident includes: a human body simulation model 1, a pressure detection device 2 and a data receiver 3.

[0026] Among them, the height and weight of the human body simulation model 1 are set with reference to normal adult males.

[0027] A plurality of pressure detection devices 2 are provided, for example, six are provided, and the six pressure detection devices 2 are respectively arranged on the head, neck, chest and legs of the human body simulation model 1.

[0028] The data receiver 3 is arranged in the human body simulation model 1, and can be arranged inside the chest cavity. The data receiver 3 is connected to each pressure detection device 2 through a cable, and is used to receive and store the pressure data measured by the pressure detection device 2, so that researchers or rescue personnel can obtain detailed data on the forces exerted on the human body during an accident, providing strong data support for subsequent analysis and decision-making.

[0029] With such a setting, the six pressure sensors of the present utility model are distributed in the human body simulation model 1 corresponding to different vulnerable parts of the human body, and can regularly measure and store the pressure data received by each position of the human body simulation model 1, avoiding data distortion, truly reflecting the pressure situation of the human body buried in the real grain pile, and providing strong support for subsequent experimental data analysis and the research and development of protective equipment.

[0030] In this embodiment, a power supply module is further included. The power supply module is electrically connected to the pressure detection device 2 and the data receiver 3, and is used to supply electrical energy to the pressure detection device 2 and the data receiver 3. The power supply module is a rechargeable battery.

[0031] Furthermore, the data receiver 3 is connected to the pressure detection device 2 through a four-core shielded cable, and simultaneously completes the functions of power supply and signal data transmission.

[0032] In some embodiments, the pressure detection device 2 is a pressure sensor, and a strain type pressure sensor can be used, with the model number CPR828.

[0033] In this embodiment, the data receiver 3 includes a circuit main board, a storage module, an expansion interface and a wiring terminal. The wiring terminal is connected to the pressure detection device 2 through a cable, and is used to receive data signals. The circuit main board is electrically connected to the expansion interface, the wiring terminal and the storage module respectively.

[0034] Among them, the wiring terminal is connected to the circuit main board by welding or a connector, and is used to transmit the received data signal to the circuit main board, and then store the received data through the storage module.

[0035] The expansion interface is electrically connected to the circuit main board through a connector, and is used to realize data transmission. The expansion interface is one of a USB port, a serial port and a parallel port, and can be used to take out the data receiver 3 after the grain is out of the bin, and export the pressure data from the storage module to a computer through the expansion interface, so that experimental personnel can analyze the pressure data.

[0036] In some embodiments, the data receiver 3 further includes a timing transmitter, which is electrically connected to the circuit main board. The timing transmitter is used to transmit signals to the pressure detection device 2 at preset time intervals. For example, it can be set to send a signal to the pressure sensor every ten minutes. After receiving the signal, the pressure sensor starts to measure the pressure. After each measurement of the pressure data, the pressure sensor transmits the data to the data receiver 3 through a cable and stores it.

[0037] With such a setting, each module of the data receiver 3 is connected and controlled through the circuit main board to form an organic whole. The power supply module provides power supply for the entire system, the storage module is responsible for data storage, the wiring terminals and expansion interfaces provide connection options with external devices or systems, and the timing transmitter transmits signals to the pressure sensor at preset time intervals. These modules work together to truly obtain the pressure situation of the buried human body in the real grain pile, providing strong support for subsequent experimental data analysis and the research and development of protective equipment.

[0038] When using the present utility model to measure the human body force distribution in a grain pile burial accident, bury the legs of the human body simulation model 1 to a depth of 50 cm in the grain pile to ensure that the human body simulation model 1 does not fall. Turn on the power supply, and relevant personnel evacuate the granary. After the grain is completely out of the granary, take out the data receiver 3, and export the pressure data from the storage module to the computer through the expansion interface. Then, the experimental personnel can analyze the pressure data.

[0039] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific situations.

[0040] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or mode are included in at least one embodiment or mode of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or modes. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or modes described in this specification and the features of different embodiments or modes.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for measuring human body force distribution simulating a grain pile buried accident, characterized in that: include: Human body simulation model (1); A plurality of pressure detection devices (2) are provided, and the plurality of pressure detection devices (2) are respectively provided on the head, neck, chest and legs of the human body simulation model (1); A data receiver (3) is arranged in the human body simulation model (1); the data receiver (3) is electrically connected to each of the pressure detection devices (2) and is used to receive and store pressure data measured by the pressure detection devices (2).

2. The human body force distribution measuring device for simulating a grain pile buried accident according to claim 1 is characterized in that: The data receiver (3) comprises a circuit mainboard, a storage module, an expansion interface and a wiring terminal, the wiring terminal being connected to the pressure detection device (2) via a cable and being used to receive a data signal, and the circuit mainboard being electrically connected to the expansion interface, the wiring terminal and the storage module respectively.

3. The human body force distribution measuring device for simulating a grain pile buried accident according to claim 2 is characterized in that: The expansion interface is electrically connected to the circuit main board through a connector to achieve data transmission. The expansion interface is one of a USB port, a serial port and a parallel port.

4. The human body force distribution measuring device for simulating a grain pile buried accident according to claim 2, characterized in that: The connection terminal is connected to the circuit main board through welding or a connector, and is used to transmit the received data signal to the circuit main board.

5. The human body force distribution measuring device for simulating a grain pile buried accident according to claim 2, characterized in that: It also includes a timing transmitter, which is electrically connected to the circuit main board and is used to transmit a signal to the pressure detection device (2) at a preset time interval.

6. The human body force distribution measuring device for simulating a grain pile buried accident according to claim 1, characterized in that: It also comprises a power supply module, which is electrically connected to the pressure detection device (2) and the data receiver (3) and is used to provide electrical energy to the pressure detection device (2) and the data receiver (3).

7. The human body force distribution measuring device for simulating a grain pile buried accident according to claim 6, characterized in that: The power supply module is a rechargeable battery.

8. The human body force distribution measuring device for simulating a grain pile buried accident according to claim 1 is characterized in that: The pressure detection device (2) is a pressure sensor.

9. The human body force distribution measuring device for simulating a grain pile buried accident according to claim 8, characterized in that: The pressure sensor is a strain gauge pressure sensor.

10. The human body force distribution measuring device for simulating a grain pile buried accident according to claim 1, characterized in that: The data receiver (3) is connected to the pressure detection device (2) via a four-core shielded cable.

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