CN114454792A - Automatic return safety handle assembly and vehicle - Google Patents

Abstract

The invention relates to an automatic return safety handle assembly which comprises a handle body, a support, a circuit board, a driving mechanism and a transmission mechanism, wherein the support is arranged on the handle body; the handle body can rotate relative to the support, the circuit board comprises a microcontroller module and a three-axis acceleration sensor module, and the three-axis acceleration sensor module is used for detecting the acceleration condition in the three-dimensional direction when the vehicle moves; when the acceleration change is detected to meet the preset condition, the microcontroller module controls the driving mechanism to start, and the driving mechanism drives the transmission mechanism to move and drives the handle body to rotate outwards so that the handle body is in an unfolded state. The safety handle can detect whether the condition that passengers are possibly unbalanced occurs in the vehicle or not by detecting the acceleration change, and when the acceleration change is detected to meet the preset condition, namely the condition that the passengers are possibly unbalanced occurs, the handle body is automatically unfolded to enable the passengers to hold the handle body for the first time to keep balance, so that the probability of injury of the passengers is reduced.

Description

An automatic return safety handle assembly and vehicle

technical field

The invention relates to the field of top handles of vehicles and other vehicles, in particular to an automatic return safety handle assembly and a vehicle.

Background technique

In modern vehicle functional parts, the main function of the roof handle is to keep the passenger's body balance. When the vehicle is running, when the vehicle bumps, turns sharply, and brakes urgently, passengers basically need to hold the handle to maintain the balance of the body and improve the safety of driving.

In order to avoid space occupation and waste, the existing ceiling handle adopts an automatic return scheme. When in use, passengers insert their fingers into the gap between the handle and the ceiling first, the finger pads contact the handle and pull the handle out, and then the palm is stretched forward as a whole so that the hand can hold the handle; after use, the palm releases the handle, and the handle is Automatic return under the action of return spring.

When an emergency occurs in the vehicle and the passenger's body is unbalanced, the passenger must hold the handle at the first time. If the handle is not held at the first time, it is very easy to cause the passenger's body to be injured due to inertial collision with other parts of the car. With the existing handle with a return function, when an emergency situation occurs that makes the passenger's body unbalance, it is difficult for the passenger to hold the handle at the first time to maintain the balance of the body. There are two specific reasons. First, it is not difficult to see from the use process of the aforementioned handle. Pulling the handle out and then holding it can actually be decomposed into two simple actions. However, even if these two simple actions are to be completed, a certain degree of accuracy is required. In the event of an emergency, passengers just lack action time and accuracy; the second is that the human body’s instinctive habitual action in the event of a sudden imbalance is to quickly find the closest fixation from top to bottom through the hands to maintain balance, but the existing In the vehicle, because of the orientation of the handle in the car, the direction of the passenger holding the handle can only be done by holding the handle from the bottom to the top. This way of finding a fixed object is not very suitable for human habits. Therefore, the existing handle is in the In an emergency, the function of maintaining body balance for passengers cannot be provided anyway, and there are great risks and hidden dangers.

SUMMARY OF THE INVENTION

In order to avoid the shortcomings of the background technology, the present invention provides an automatic return safety handle assembly, which can be automatically unfolded when a situation that may cause the passenger to be unbalanced is detected, so that the passenger can hold it at the first time.

The self-returning safety handle assembly proposed by the present invention includes a handle body and a bracket. The handle body can be rotated relative to the bracket, and also includes a circuit board, a driving mechanism, and a transmission mechanism. The circuit board includes a microcontroller module and a connection with the microcontroller. The three-axis acceleration sensor module connected to the module, the three-axis acceleration sensor module is used to detect the acceleration in the three-dimensional direction of the vehicle in motion and send it to the microcontroller module; when the detected acceleration changes meet the preset conditions, the microcontroller module The driving mechanism is controlled to start work, and the driving mechanism drives the transmission mechanism to move and drives the handle body to rotate outwards so that the handle body is in an unfolded state.

Further, when the acceleration change is not detected continuously within the preset time and meets the preset conditions or when the handle body is detected to be held by the hand, the microcontroller module controls the drive mechanism to stop working, and the handle body automatically returns without external force. .

Further, the driving mechanism can detect that it is in an unloaded state or a loaded state; when it is detected that it is in an unloaded state, the microcontroller module determines that the handle body is held by the hand and controls the driving mechanism to stop working.

Further, the circuit board also includes a human body detection module connected to the microcontroller module; the human body detection module is used to detect the presence of people in the corresponding seat and send it to the microcontroller module; when it is detected that there is someone in the corresponding seat, the microcontroller The controller module detects acceleration changes.

Preferably, the human body detection module is a pyroelectric induction module.

Further, the preset conditions include one or more of a bumpy state, a sharp turning state, and a sudden braking state.

Further, the circuit board also includes a voice module connected to the microcontroller module; when it is detected that the acceleration change conforms to the bumpy state and the bumpy state lasts for a preset duration, the microcontroller module controls the voice module to send out a reminder voice.

The present invention also proposes a vehicle, comprising the automatic return safety handle assembly described in any one of the above.

The beneficial effect of the present invention is that the automatic return safety handle assembly can detect whether the vehicle in which it is located has a situation that may unbalance passengers by detecting acceleration changes. In case of emergency, the handle body is automatically unfolded for passengers to hold the handle body for the first time to maintain balance and reduce the probability of passenger injury.

Description of drawings

FIG. 1 is a schematic diagram of a conventional vehicle roof handle.

FIG. 2 is a schematic diagram of the module composition of the automatic return safety handle assembly according to the embodiment.

FIG. 3 is a schematic diagram of the control flow of the automatic return safety handle assembly according to the embodiment.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Embodiments, referring to Figures 2-3, an automatic return safety handle assembly, which can be applied to a vehicle ceiling handle scenario, includes a handle body 10, a bracket, a circuit board 20, a drive mechanism 30, and a transmission mechanism 40; It is fixed to the roof of the vehicle, and the handle body 10 can be rotated relative to the bracket; the circuit board 20 includes a microcontroller module 21, a human body detection module 22 and a three-axis acceleration sensor module 23 connected to the microcontroller module 21; the human body detection module 22 is used for detecting The position of the safety handle corresponds to the presence of personnel in the seat, and the three-axis acceleration sensor module 23 is used to detect the acceleration in the three-dimensional direction when the vehicle is moving;

When it is detected that there is someone in the corresponding seat, the microcontroller module 21 further detects the acceleration change. In this embodiment, the human body detection module 22 is preferably a pyroelectric induction module, and the pyroelectric induction module is used as a trigger-type detection sensor. will consume additional power; when it is detected that the acceleration change meets the preset conditions, the microcontroller module 21 controls the drive mechanism 30 to start work, the drive mechanism 30 drives the transmission mechanism 40 to move and drives the handle body 10 to rotate outward so that the handle body 10 is in the unfolded state Status; the preset conditions include the bumpy condition, sharp turning condition, and sudden braking condition of the vehicle, which can be judged by detecting whether there is continuous up and down acceleration sudden change, excessive left and right acceleration, and excessive backward acceleration; when the preset time When the acceleration change is not detected continuously and meets the preset condition or when the handle body 10 is detected to be held by the hand, the microcontroller module 21 controls the driving mechanism 30 to stop working, and the handle body 10 automatically returns without external force.

In this embodiment, the automatic return safety handle assembly (hereinafter referred to as the safety handle) can be used not only for vehicles, but also for other vehicles that require a handle to be installed. It has the functions of real-time driving condition detection and automatic deployment; the use of the safety handle is very simple. , when it is detected that there is a person in the seat corresponding to the safety handle, the safety handle will further detect the current vehicle condition; the vehicle normally starts to accelerate, brake and decelerate, and turn left and right, that is, under normal driving conditions, it is no different from the general roof handle, only when When it is detected that the acceleration change meets the preset condition, that is, when there is a situation that may cause the passenger to be unbalanced, the handle body 10 is automatically unfolded for the passenger to hold the handle body 10 for the first time to maintain balance; after the handle body 10 is unfolded, when the preset When the acceleration change is not detected continuously within 2 to 3 seconds and meets the preset condition, the unbalance of the passenger may disappear, and the handle body 10 will automatically return to the position without external force.

The function of the self-returning safety handle assembly in this embodiment is to quickly unfold the handle body 10 for the passenger to hold the handle body 10 for the first time when there is a situation that may cause the passenger to be unbalanced. For example, its main task has been completed, and continuing to work is just a waste of power. Therefore, in order to save energy, the driving mechanism 30 in this embodiment can detect that it is in a no-load state or a loaded state; when the no-load state is detected, the microcontroller module 21 determines that the handle body 10 is held by a hand and controls the driving mechanism 30 to stop working. . The main principle is that the automatic return function of the safety handle is provided by the return spring installed at the connection between the handle body 10 and the bracket, and the drive mechanism 30 to drive the safety handle to unfold actually needs to overcome the resistance of the return spring, that is, return The spring is equivalent to the load of the drive mechanism 30; when the passenger holds the handle body 10 by hand, the force exerted by the passenger on the handle body 10 is far greater than the resistance of the return spring, at this time, the load of the drive mechanism 30 is equivalent to disappearing That is, in the no-load state, in other words, when the driving mechanism 30 detects that it is in the no-load state, it actually represents that the current passenger is holding the handle body 10 by hand.

In this embodiment, the preset conditions include a bumpy state, a sharp turning state, and a sudden braking state, wherein the bumpy state is different from the sharp turning state and the sudden braking state. The duration of the sharp turning state and the sudden braking state is relatively short, while the The duration of the bumpy state is not necessarily the same. In some road sections with poor road conditions, the vehicle is likely to continue bumping for a long time; in order to reduce the risk of injury to passengers due to continuous vehicle bumping, the circuit board 20 in this embodiment also includes and The voice module 24 connected to the microcontroller module 21; when it is detected that the acceleration change conforms to the bumpy state and the bumpy state continues for a preset duration, the microcontroller module 21 controls the voice module 24 to issue a reminder voice to remind passengers to hold the handle to avoid injury .

Although the present invention has been described with reference to preferred embodiments, it will be understood by those of ordinary skill in the art that, without being limited to the above-described embodiments, various changes in form and detail may be made within the scope of the claims. Variety.

Claims (8)

1. An automatic return safety handle assembly, comprising a handle body and a bracket, the handle body can rotate relative to the bracket, and it is characterized in that: also include a circuit board, a driving mechanism, a transmission mechanism; the circuit board includes a microcontroller module and A three-axis acceleration sensor module connected to the microcontroller module, the three-axis acceleration sensor module is used to detect the acceleration in the three-dimensional direction when the vehicle is moving and send it to the microcontroller module; when the acceleration change is detected When the preset conditions are met, the microcontroller module controls the drive mechanism to start working, and the drive mechanism drives the transmission mechanism to move and drives the handle body to rotate outward to make the handle body in an unfolded state. 2. An automatic return safety handle assembly according to claim 1, characterized in that: when no acceleration change is detected for a preset time and meets a preset condition or it is detected that the handle body is held by a hand At the time, the microcontroller module controls the drive mechanism to stop working, and the handle body automatically returns to its original position without external force. 3. An automatic return safety handle assembly according to claim 2, characterized in that: the drive mechanism can detect that it is in a no-load state or a load state; when it is detected that it is in an no-load state, the micro The controller module determines that the handle body is held by the hand and controls the drive mechanism to stop working. 4. An automatic return safety handle assembly according to claim 1, wherein the circuit board further comprises a human body detection module connected with the microcontroller module; the human body detection module is used for detecting The presence of the person in the corresponding seat is sent to the microcontroller module; when the presence of the person in the corresponding seat is detected, the microcontroller module detects the acceleration change. 5 . An automatic return safety handle assembly according to claim 4 , wherein the human body detection module is a pyroelectric induction module. 6 . 6 . The automatic return safety handle assembly of claim 1 , wherein the preset conditions include one or more of a bump state, a sharp turning state, and a sudden braking state. 7 . 7. An automatic return safety handle assembly according to claim 6, characterized in that: the circuit board further comprises a voice module connected with the microcontroller module; When the turbulent state continues for a preset period of time, the microcontroller module controls the voice module to issue a reminder voice to the outside. 8. A vehicle, characterized in that it comprises the self-returning safety handle assembly according to any one of claims 1-7.

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