Dummy neck six-dimensional force sensor

Abstract

The utility model relates to the technical field of automobile collision detection equipment, in particular to a dummy neck six-dimensional force sensor, which comprises a base, a mounting plate mounted at the top of the base, a mounting groove mounted at the top of the mounting plate, a six-axis sensor mounted inside the mounting groove, a support column mounted at the bottom of the mounting plate, and a protective cover sleeved on the outer side of the mounting plate. A plurality of guide assemblies are mounted between the bottom of the mounting plate and the top of the base, grooves are formed in the bottom of the mounting plate, and the tops of the supporting columns are matched with the grooves in an inserted mode. According to the dummy neck six-dimensional force sensor, the sensor is installed in the installation groove through the six-axis sensor, force in three directions and torque in the three directions of the neck can be measured at the same time, and therefore the stress condition of a human body in the collision process can be simulated more truly. In addition, the sensor is further provided with a supporting column, a guide assembly, a spring and other structures, so that the strength and stability of the sensor are enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile collision detection equipment, in particular to a six-dimensional force sensor for a dummy neck. Background Art

[0002] With the rapid development of the automobile industry, people pay more and more attention to automobile safety performance. In automobile collision tests, in order to more realistically simulate the stress of the human body in a collision, dummies are usually used to replace real people for testing. The neck of the dummy is one of the most critical parts in the collision test because it is directly related to the safety of the occupant's head and cervical spine. Therefore, it is particularly important to accurately measure the stress on the dummy's neck.

[0003] Traditional dummy neck force sensors can only measure force in a single direction or plane, and cannot fully reflect the force applied to the neck in three-dimensional space. In addition, due to the huge impact force generated during a car collision, the sensor itself also needs to have sufficient strength and stability to ensure the accuracy and reliability of the measurement data. Utility Model Content

[0004] The purpose of the utility model is to provide a six-dimensional force sensor for the dummy neck to solve the problem that the traditional dummy neck force sensor mentioned in the above background technology can only measure the force in a single direction or plane, and cannot fully reflect the force situation of the neck in three-dimensional space. In addition, due to the huge impact force generated during a car collision, the sensor itself also needs to have sufficient strength and stability to ensure the accuracy and reliability of the measurement data.

[0005] To achieve the above-mentioned purpose, the utility model provides a six-dimensional force sensor for a dummy neck, comprising a base, a mounting plate installed on the top of the base, a mounting groove installed on the top of the mounting plate, a six-axis sensor installed inside the mounting groove, a support column installed on the bottom of the mounting plate, a protective cover is provided on the outer side of the mounting plate, a plurality of guide components are installed between the bottom of the mounting plate and the top of the base, a groove is provided on the bottom of the mounting plate, the top of the support column is plugged into the groove, and a spring is installed inside the groove.

[0006] Preferably, a positioning hole is provided on the outer side of the mounting plate, and a tightening bolt is installed at the positioning hole.

[0007] Preferably, a plurality of mounting holes are provided on the surface of the base.

[0008] Preferably, the protective cover is fixed to the outer side of the mounting plate by bolts.

[0009] Preferably, a reinforcing rib is installed at the bottom of the support column, and the bottom of the reinforcing rib is welded and fixed to the top surface of the base.

[0010] Preferably, the guide assembly comprises a guide sleeve, a guide rod is inserted into the bottom of the guide sleeve, a slider is installed on the upper outer side of the guide rod, a slide groove is provided on the inner wall of the guide sleeve, and the slider is slidably connected to the slide groove.

[0011] Preferably, the bottom end of the guide rod is fixedly welded to the top of the base, and the top of the guide sleeve is fixedly welded to the bottom of the mounting plate.

[0012] Preferably, a single chip microcomputer is welded and fixed to the bottom of the mounting plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the six-dimensional force sensor of the dummy neck, the sensor uses a six-axis sensor installed in the installation slot, which can simultaneously measure the force and torque of the neck in three directions, thereby more realistically simulating the force of the human body in a collision. In addition, the sensor also enhances the strength and stability of the sensor by setting structures such as support columns, guide components and springs. The support column and the base are reinforced by reinforcing ribs, which effectively improves the bearing capacity of the sensor; the guide component realizes stable support and guidance of the mounting plate through the cooperation of the guide sleeve and the guide rod, avoiding the shaking and deviation of the sensor during the collision; the spring plays a buffering role, which can absorb part of the impact force and protect the sensor from damage. At the same time, the sensor also uses a protective cover to protect the mounting plate and the six-axis sensor to prevent the debris and splashes generated during the collision from damaging the sensor. The protective cover is fixed to the outside of the mounting plate by bolts, which is easy to install and disassemble, and convenient for inspection and maintenance of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the guide assembly in the utility model.

[0018] The meaning of each number in the figure is:

[0019] 1. Base; 11. Mounting hole; 2. Mounting plate; 21. Support column; 211. Reinforcing rib; 212. Spring; 22. Positioning hole; 23. Mounting slot; 24. Guide assembly; 241. Guide sleeve; 242. Guide rod; 2421. Slider; 243. Slide slot; 25. Groove; 26. Single chip microcomputer; 3. Protective cover. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] The utility model provides a six-dimensional force sensor for a dummy neck, such as Figure 1-Figure 3 As shown, it includes a base 1, a mounting plate 2 is installed on the top of the base 1, a mounting groove 23 is installed on the top of the mounting plate 2, a six-axis sensor is installed inside the mounting groove 23 for detecting motion data, a support column 21 is installed at the bottom of the mounting plate 2, a protective cover 3 is provided on the outer side of the mounting plate 2 for protecting the mounting plate 2, a plurality of guide components 24 are installed between the bottom of the mounting plate 2 and the top of the base 1 for guiding the mounting plate 2 when it moves, a groove 25 is provided at the bottom of the mounting plate 2, the top of the support column 21 is plugged into the groove 25, a spring 212 is installed inside the groove 25, which plays a certain buffering role when it is hit to avoid damage to the mounting plate 2.

[0022] In this embodiment, a positioning hole 22 is provided on the outer side of the mounting plate 2 , and a tightening bolt is installed at the positioning hole 22 for positioning the six-axis sensor in the mounting groove 23 .

[0023] Specifically, a plurality of mounting holes 11 are provided on the surface of the base 1 to facilitate the installation and fixation of the base 1 .

[0024] Furthermore, the protective cover 3 is fixed to the outer side of the mounting plate 2 by bolts, so as to protect the outer side of the mounting plate 2 .

[0025] Furthermore, a reinforcing rib 211 is installed at the bottom of the support column 21 , and the bottom of the reinforcing rib 211 is welded and fixed to the top surface of the base 1 , thereby improving the supporting strength of the support column 21 .

[0026] Furthermore, the guide assembly 24 includes a guide sleeve 241, a guide rod 242 is inserted into the bottom of the guide sleeve 241, a slider 2421 is installed on the upper outer side of the guide rod 242, and a slide groove 243 is provided on the inner wall of the guide sleeve 241. The slider 2421 is slidably connected to the slide groove 243 for guiding the installation plate 2 when it moves.

[0027] Furthermore, the bottom end of the guide rod 242 is welded and fixed to the top of the base 1 , and the top of the guide sleeve 241 is welded and fixed to the bottom of the mounting plate 2 , so as to ensure a stable guiding effect.

[0028] Furthermore, a single chip microcomputer 26 is welded and fixed to the bottom of the mounting plate 2 for receiving sensor signals and transmitting data.

[0029] When the six-dimensional force sensor for the dummy neck of the utility model is used, first, the base 1 is firmly installed at the position of the dummy neck inside the car through the mounting hole 11 on its surface. The top of the base 1 supports the mounting plate 2, and is reinforced by the support column 21 to ensure the stability of the entire sensor system during the collision. The top of the support column 21 is inserted into the groove 25 at the bottom of the mounting plate 2, and the groove 25 is equipped with a spring 212, which can absorb the impact caused by the collision to a certain extent. The mounting plate 2 is the core part of the sensor system, and a mounting groove 23 is provided on its upper part for installing a six-axis sensor. The six-axis sensor is accurately positioned and fixed by the positioning hole 22 and the tightening bolts in the mounting groove 23, ensuring that the sensor can accurately measure the neck force during the collision. A protective cover 3 is provided on the outer side of the mounting plate 2, which is fixed to the mounting plate 2 by bolts to protect the sensor and related components from external interference and damage.

[0030] In order to maintain the stability and measurement accuracy of the sensor system, several guide components 24 are installed between the bottom of the mounting plate 2 and the top of the base 1. The guide component 24 consists of a guide sleeve 241 and a guide rod 242. The bottom of the guide rod 242 is fixed on the base 1, and the guide sleeve 241 is connected to the bottom of the mounting plate 2. The slider 2421 on the upper part of the guide rod 242 is slidably matched with the slide groove 243 on the inner wall of the guide sleeve 241, so that the mounting plate 2 can move stably in a predetermined direction when it is hit, thereby ensuring the accuracy of the sensor measurement.

[0031] Finally, a single-chip microcomputer 26 is welded and fixed to the bottom of the mounting plate 2, which is used to receive the signal of the six-axis sensor and process and transmit the data. When the car collides, the six-axis sensor will measure the force on the dummy's neck in real time and transmit the data to the single-chip microcomputer 26. The single-chip microcomputer 26 is responsible for processing and analyzing the data, and finally transmits the results to the safety system or test equipment of the car for subsequent safety evaluation and improvement work.

[0032] Finally, it should be noted that the six-axis sensor, single-chip microcomputer 26, etc. in this embodiment, the electronic components in the above parts are all universal standard parts or parts known to technical personnel in this field, and their structures and principles can be known to technical personnel in this field through technical manuals or through conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires respectively. The specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the field.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A six-dimensional force sensor for a dummy neck, comprising a base (1), characterized in that: A mounting plate (2) is mounted on the top of the base (1), a mounting groove (23) is mounted on the top of the mounting plate (2), a six-axis sensor is mounted inside the mounting groove (23), a support column (21) is mounted on the bottom of the mounting plate (2), a protective cover (3) is sleeved on the outside of the mounting plate (2), a plurality of guide components (24) are mounted between the bottom of the mounting plate (2) and the top of the base (1), a groove (25) is provided at the bottom of the mounting plate (2), the top of the support column (21) is plugged into the groove (25), and a spring (212) is mounted inside the groove (25).

2. The six-dimensional force sensor for the dummy neck according to claim 1, characterized in that: A positioning hole (22) is provided on the outer side of the mounting plate (2), and a tightening bolt is installed at the positioning hole (22).

3. The six-dimensional force sensor for the dummy neck according to claim 1, characterized in that: A plurality of mounting holes (11) are provided on the surface of the base (1).

4. The six-dimensional force sensor for the dummy neck according to claim 1, characterized in that: The protective cover (3) is fixed to the outer side of the mounting plate (2) by means of bolts.

5. The six-dimensional force sensor for the dummy neck according to claim 1, characterized in that: A reinforcing rib (211) is installed at the bottom of the support column (21), and the bottom of the reinforcing rib (211) is welded and fixed to the top surface of the base (1).

6. The six-dimensional force sensor for the dummy neck according to claim 1, characterized in that: The guide assembly (24) comprises a guide sleeve (241), a guide rod (242) being inserted into the bottom of the guide sleeve (241), a slider (2421) being mounted on the outer side of the upper portion of the guide rod (242), a slide groove (243) being provided on the inner wall of the guide sleeve (241), and the slider (2421) being slidably connected to the slide groove (243).

7. The six-dimensional force sensor for the dummy neck according to claim 6, characterized in that: The bottom end of the guide rod (242) is welded and fixed to the top of the base (1), and the top of the guide sleeve (241) is welded and fixed to the bottom of the mounting plate (2).

8. The six-dimensional force sensor for the dummy neck according to claim 1, characterized in that: A single-chip computer (26) is welded and fixed to the bottom of the mounting plate (2).

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