Novel headrest for automobile driving

Abstract

The utility model discloses a novel headrest for automobile driving, which relates to the technical field of automobile accessories and comprises a support shell part, a soft part, four electric telescopic rods and two support rods, wherein the soft part is arranged on the front side of the supporting shell part, the four electric telescopic rods are symmetrically distributed in the soft part and the supporting shell part in pairs, the rear ends of the electric telescopic rods are rotationally connected with the supporting shell part, and the front ends of the electric telescopic rods are flexibly connected with the soft part; the two supporting rods are both fixed to the lower side of the supporting shell part and used for being connected with a seat. The rubber coaming and the memory sponge are matched to form the arc-shaped groove type structure, when a driver drives a vehicle, the head leans against the interior of the arc-shaped groove type structure, the driving comfort is ensured, the memory sponge can be repeatedly used, the pressure of the headrest on the head can be relieved, and the safety of the driver is improved. The problem that a vibration spring may be damaged or lose elasticity after long-time use is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, and particularly relates to a new type of headrest for automobile driving. Background Art

[0002] With the rapid development of the national economy, automobiles have gradually entered thousands of households, resulting in a high incidence of traffic accidents. A considerable part of these traffic accidents are caused by bad driving habits or abnormal driving behaviors of drivers. At present, regarding the problem of safe driving of automobiles, the automobile alarm mechanism is relatively mature. The early technology mainly focused on the fault alarm of the vehicle's own system. Various fault alarm lights were arranged inside the vehicle to help the driver eliminate faults in time, ensure driving safety, and avoid traffic accidents caused by vehicle faults.

[0003] Chinese Patent Publication No. CN205686236U, with the authorization announcement date of November 16, 2016, and the utility model name being: An intelligent automobile attention energy supply warning headrest. In this patent, a vibration spring is connected to a bearing plate. First, putting the spring and the support plate into the headrest may make the headrest not soft and comfortable enough; second, long-term vibration may damage the spring.

[0004] The above problems need to be solved urgently. Therefore, a new type of headrest for automobile driving is proposed. Summary of the Invention

[0005] The purpose of the utility model is to provide a new type of headrest for automobile driving, which solves the problems of the existing headrest being not soft and comfortable enough and being easily damaged.

[0006] The utility model solves the above technical problems through the following technical solutions. The utility model includes a support housing part, a soft part, four electric telescopic rods, and two support rods; among them:

[0007] The soft part is arranged on the front side of the support housing part. The four electric telescopic rods are symmetrically distributed in pairs between the soft part and the support housing part, and the rear end of the electric telescopic rod is rotatably connected to the support housing part, and the front end is softly connected to the soft part; the two support rods are both fixed to the lower side of the support housing part;

[0008] The soft part includes a rubber enclosure and memory foam. The rubber enclosure is fixed to the front side of the support housing part. The front side of the rubber enclosure is in an arc-shaped concave structure. The memory foam is fixed to the front side of the rubber enclosure, and the transverse cross-section of the memory foam is in an arc-shaped structure, that is, an arc-shaped groove is formed.

[0009] Furthermore, the support housing part includes a bottom plate, side enclosures, and a back baffle. The side enclosures are installed on the upper side of the bottom plate, and the back baffle is jointly installed on the rear sides of the bottom plate and the side enclosures.

[0010] Furthermore, a fixed tube is fixed between the support housing part and the soft part. The electric telescopic rod is installed in the fixed tube. A fixed cover connected to the fixed tube is fixed on the electric telescopic rod. A rubber airbag top bolt is fixed at the telescopic end of the electric telescopic rod, and the rubber airbag top bolt penetrates and is fixed in the memory foam.

[0011] Furthermore, an air valve is arranged on the rubber airbag top bolt.

[0012] Furthermore, the headrest further includes a monitoring component, a microcontroller, a communication module, and a driver; the monitoring component is communicatively connected to the microcontroller, the microcontroller is respectively communicatively connected to the driver through the communication module, and the driver is respectively communicatively connected to the four electric telescopic rods.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. Through the cooperation of the rubber enclosure and the memory foam, an arc-shaped groove structure is formed. When the driver is driving a vehicle, the head is leaned against the arc-shaped groove structure to ensure driving comfort. Moreover, the memory foam can be reused, which can reduce the pressure of the headrest on the head and solve the problem that the vibration spring may be damaged or lose elasticity after a long time;

[0015] 2. Through the operation of the four electric telescopic rods, the four rubber airbag top bolts make continuous reciprocating movements through the electric telescopic rods to contact the driver's head, thereby being able to remind the driver and ensure safe driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is Figure 1 the first cross-sectional structural diagram of

[0018] Figure 3 is Figure 1 the second cross-sectional structural diagram of

[0019] Figure 4 is Figure 3 the structural diagram of the electric telescopic rod in

[0020] Figure 5 is Figure 1 the structural diagram of the back baffle in

[0021] Figure 6 is the schematic monitoring process diagram of the visual sensor for fatigue driving behavior in the present invention.

[0022] The numbers in the figures represent:

[0023] 11 - Bottom plate; 12 - Side enclosing plate; 13 - Back baffle; 21 - Rubber enclosing plate; 22 - Memory foam; 4 - Support rod; 5 - Electric telescopic rod; 51 - Fixed tube; 52 - Fixed cover; 53 - Rubber airbag plug; 61 - Microcontroller; 62 - Communication module; 63 - Battery module; 64 - Driver; 65 - Indicator light. Detailed implementation mode

[0024] The following will further elaborate on the above and additional technical features and advantages of the present utility model in conjunction with the accompanying drawings.

[0025] Embodiment 1

[0026] This embodiment provides a technical solution: a new type of headrest for vehicle driving, as Figures 1-4 shown, including a support housing part, a soft part, four electric telescopic rods 5, a monitoring component (not shown in the figure), a central processing module, and two support rods 4;

[0027] The support housing part includes a bottom plate 11, a side enclosing plate 12, and a back baffle 13. The side enclosing plate 12 is installed on the upper side of the bottom plate 11, and the back baffle 13 is jointly installed on the rear side of the bottom plate 11 and the side enclosing plate 12. The connections between the bottom plate 11, the side enclosing plate 12, and the back baffle 13 are respectively detachable connections, and the connection methods can be threaded connections or snap connections.

[0028] Both of the two support rods 4 are fixed to the lower side of the bottom plate 11 of the support housing part for connecting this headrest to the seat.

[0029] The front side of the soft part has an arc-shaped groove; the soft part includes a rubber enclosing plate 21 and a memory foam 22. The rubber enclosing plate 21 is fixed to the front side of the bottom plate 11 and the side enclosing plate 12. The front side of the rubber enclosing plate 21 is in an arc-shaped concave structure, and the memory foam 22 is fixed to the front side of the rubber enclosing plate 21, and the transverse cross-section of the memory foam 22 is an arc-shaped structure, that is, an arc-shaped groove is formed. When the driver is driving a vehicle, the head is leaned against the arc-shaped groove to ensure driving comfort.

[0030] Four electric telescopic rods 5 are symmetrically distributed in pairs within the soft part and the support housing part. The rear end of the electric telescopic rod 5 is rotatably connected to the support housing part, and the front end is flexibly connected to the soft part. A fixed tube 51 is fixed between the support housing part and the soft part. The electric telescopic rod 5 is installed within the fixed tube 51. A fixed cover 52 is connected inside the fixed tube. The telescopic end of the electric telescopic rod 5 slidably penetrates through the inner hole of the fixed cover 52, which plays a guiding role for the telescopic end of the electric telescopic rod 5, preventing the rubber airbag top bolt 53 from deviating in the telescopic direction. The telescopic end of the electric telescopic rod 5 is fixed with a rubber airbag top bolt 53, and the rubber airbag top bolt 53 penetrates and is fixed in the memory foam 22. The rubber airbag top bolt 53 is made of soft rubber to ensure the comfort of the driver when leaning on it.

[0031] The monitoring component is used to monitor the driving state of the driver. After detecting that the driver has abnormal driving behavior through the monitoring component, a signal is sent to the central processing module. The central processing module controls the operation of the four electric telescopic rods 5. The four rubber airbag top bolts 53 make continuous reciprocating movements through the electric telescopic rods 5 to contact the driver's head, so as to remind the driver to drive safely until the driver returns to the normal driving state.

[0032] The present invention combines the electric telescopic rod 5 and the rubber airbag top bolt 53. Compared with the prior art that uses a vibrating spring and a support plate in cooperation, it can provide a comfortable force and will not be overly stimulating like the spring vibration. The expansion force and position of the rubber airbag top bolt 53 can be adjusted through the air valve thereon, which is more flexible. Since the rubber airbag top bolts 53 are distributed at four support points on the head, different directions of prompts such as up and down or left and right can be achieved through the rubber airbag top bolts 53, not just vibration. The rubber airbag top bolt 53 has an air valve and can be retracted by deflating and reused. While the vibrating spring may be damaged or lose its elasticity after a long time of use. At the same time, when an appropriate air pressure can be controlled, the pressure of the headrest on the head can be reduced. The structure of the rubber airbag top bolt 53 has relatively high reliability and is relatively safer.

[0033] Embodiment 2

[0034] As Figure 5 shown, this embodiment is further optimized on the basis of the above embodiment. The same parts as the foregoing technical solutions will not be described herein again. As Figure 6As shown below, to better implement the present invention, the following setting method is specifically adopted: The central processing module includes a microcontroller 61, a communication module 62, a battery module 63, a driver 64, and an indicator light 65; the battery module 62 is used to provide power, the communication module 62 is connected to the monitoring component, and is used to receive the signal of the monitoring component and send it to the microcontroller 61. The microcontroller 61 is respectively connected to the indicator light 65 and the driver 64. The microcontroller 61 controls the operation of the indicator light 65 according to the signal transmitted by the communication module 62 and sends corresponding instructions to the driver 64. The driver 64 drives the electric telescopic rod 5 to operate according to the instructions issued by the microcontroller 61.

[0035] More specifically, the microcontroller 61 in this embodiment is a single-chip microcomputer of the STM32 series.

[0036] The monitoring component is a vision sensor, and the communication module 62 is a wireless transceiver. The vision sensor and the wireless transceiver are connected by wireless communication.

[0037] It should be noted that the vision sensor mainly detects abnormal driving behaviors (in this embodiment, it refers to fatigue driving behaviors) during daily driving. As Figure 6 shown, according to the Eye Aspect Ratio (EAR) and the Mouth Aspect Radio (MAR), it is determined whether the driver has fatigue driving behavior. To improve the detection efficiency, the pictures are extracted from the read video (collected by the vision sensor) in a frame-skipping manner, and 68 coordinate points of the face coordinates are extracted using the Dlib model. The opening degrees of the eye and mouth regions are calculated by extracting them from the coordinate axes.

[0038]

[0039] Equation (1) gives the calculation method of EAR, where (P1, P2,..., P6) are the coordinates of the eyes among the face coordinate points extracted by the Dlib model. The eye aspect ratio represents the degree of eye opening. When drowsiness occurs, the degree of eye opening decreases. When the degree of eye opening is less than the set threshold 1 and the number of times less than threshold 1 is greater than the set threshold 3, it indicates that the driver has a fatigue driving behavior, and the system will give a prompt alarm. Similarly, in Equation (2), the mouth aspect ratio represents the degree of mouth opening, and the same principle is used in its calculation method, where (P0, P1,..., P7) are the coordinates of the mouth among the face coordinate points extracted by the Dlib model. By extracting the corresponding coordinate points and calculating the degree of mouth opening, and comparing it with the set threshold 2, if it is greater than threshold 2, it indicates yawning, and the number of yawns is greater than the set threshold 4, and the yawning time is less than or equal to the set threshold 5, it indicates that the driver has a fatigue driving behavior and an alarm is given. The thresholds 1, 2, 3, 4, and 5 in this embodiment are all set according to actual applications and are independent of each other.

[0040] For the above principle of detecting fatigue driving behavior, please refer to the reference (Xie Dou, Chen Xiaofeng, Zheng Jiayi, etc. Fatigue Driving Detection System Based on Machine Vision [J]. Internet of Things Technologies, 2020, 10(11): 18-20. DOI: 10.16667 / j.issn.2095-1302.2020.11.004).

[0041] The above is only a preferred embodiment of the present utility model, which is illustrative rather than restrictive to the present utility model. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, but all will fall within the protection scope of the present utility model.

Claims

1. A new type of automobile driving headrest, characterized by: It includes a supporting shell part, a soft part, four electric telescopic rods and two supporting rods; wherein: The soft part is arranged on the front side of the supporting shell part, and the four electric telescopic rods are symmetrically distributed in the soft part and the supporting shell part in pairs, and the rear end of the electric telescopic rod is rotatably connected to the supporting shell part, and the front end is flexibly connected to the soft part; the two supporting rods are fixed to the lower side of the supporting shell part; The soft part includes a rubber panel and memory foam. The rubber panel is fixed to the front side of the supporting shell part. The front side of the rubber panel is an arc-shaped concave structure. The memory foam is fixed to the front side of the rubber panel. The transverse cross-section of the memory foam is an arc-shaped structure, that is, an arc-shaped groove is formed.

2. A new type of automobile driving headrest according to claim 1, characterized in that: The supporting shell portion includes a bottom plate, a side panel and a back baffle, wherein the side panel is installed on the upper side of the bottom plate, and the back baffle is installed together on the rear side of the bottom plate and the side panel.

3. A new type of automobile driving headrest according to claim 2, characterized in that: A fixing tube is fixed between the supporting shell part and the soft part, the electric telescopic rod is installed in the fixing tube, a fixing cover connected with the fixing tube is fixed on the electric telescopic rod, a rubber airbag top bolt is fixed to the telescopic end of the electric telescopic rod, and the rubber airbag top bolt penetrates and is fixed to the memory foam.

4. A new type of automobile driving headrest according to claim 3, characterized in that: The rubber airbag top bolt is provided with an air valve.

5. A new type of automobile driving headrest according to claim 1 or 4, characterized in that: The headrest also includes a monitoring component, a microcontroller, a communication module, and a driver; the monitoring component is communicatively connected to the microcontroller, the microcontroller is communicatively connected to the driver through the communication module, and the driver is communicatively connected to four electric telescopic rods.

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