CN114454792A

CN114454792A - Automatic return safety handle assembly and vehicle

Info

Publication number: CN114454792A
Application number: CN202210218471.4A
Authority: CN
Inventors: 卓德善; 岑高松; 孙盼攀; 陈伟科; 许成坤; 顾安军
Original assignee: Ningbo Fuerda Smartech Co Ltd
Current assignee: Ningbo Fuerda Smartech Co Ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-05-10

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

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

Among the modern vehicle functions, the main function of the roof handle is to keep the passengers in physical balance. When the vehicle jolts, turns sharply, brakes suddenly and the like during the running of the vehicle, passengers basically need to keep the body balance by holding the handle, and the running safety is improved.

The existing ceiling handle adopts an automatic return scheme in order to avoid space occupation and waste. When the handle is used, a passenger firstly inserts fingers into a gap between the handle and the ceiling, finger bellies of the fingers are in contact with the handle and pull out the handle, and then the palm integrally extends forwards to enable the palm to hold the handle; after the use, the palm releases the handle, and the handle automatically returns under the action of the return spring.

When the body of a passenger is unbalanced in an emergency situation of a vehicle, the passenger must hold the handle at the first time, and if the passenger does not hold the handle at the first time, the body of the passenger is easily damaged due to the fact that the passenger collides with other parts in the vehicle through inertia. When the existing handle with the return function is in an emergency situation of unbalancing the body of a passenger, the passenger is difficult to hold the handle at the first time to keep the body balance. The specific reasons are two, one is that the use process of the handle is not difficult, the handle can be pulled out and then held to be split into two simple actions, but even if the two simple actions are required to be completed, certain accuracy and time are required, and passengers just lack the action time and accuracy when an emergency happens; secondly, the instinctive habit action of a human body when the human body is suddenly unbalanced is to quickly find the closest fixture from top to bottom through hands so as to maintain balance, but the direction of a passenger holding the handle in the existing vehicle can only hold the handle from bottom to top because of the arrangement direction of the handle in the vehicle, and the way of finding the fixture is not in line with the habit of the human body in fact; therefore, the existing handle can not provide the function of keeping the body balance of passengers in an emergency, and has larger risk and hidden trouble.

Disclosure of Invention

In order to avoid the defects of the background art, the invention provides the automatic return safety handle assembly which can be automatically unfolded when the situation that passengers are possibly unbalanced is monitored, so that the passengers can hold the handle assembly for the first time.

The invention provides an automatic return safety handle assembly which comprises a handle body and a support, wherein the handle body can rotate relative to the support, and the automatic return safety handle assembly also comprises a circuit board, a driving mechanism and a transmission mechanism, wherein the circuit board comprises a microcontroller module and a three-axis acceleration sensor module connected with the microcontroller module, and the three-axis acceleration sensor module is used for detecting the acceleration condition in the three-dimensional direction when a vehicle moves and sending the acceleration condition to the microcontroller module; 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.

Further, when the acceleration change is continuously not detected within the preset time and meets the preset condition or the handle body is detected to be held by a hand, the microcontroller module controls the driving mechanism to stop working, and the handle body automatically returns under the condition of no external force.

Further, the driving mechanism can detect whether the driving mechanism is in an idle state or a load state; when the handle body is detected to be in the no-load state, the microcontroller module determines that the handle body is held by hands and controls the driving mechanism to stop working.

Furthermore, the circuit board also comprises a human body detection module connected with the microcontroller module; the human body detection module is used for detecting the existence condition of personnel at the corresponding seat and sending the personnel to the microcontroller module; when the corresponding seat is detected to be in existence, the microcontroller module detects the acceleration change.

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

Further, the preset condition includes one or more of a bump state, a sharp turn state and a sharp braking state.

Furthermore, the circuit board also comprises a voice module connected with the microcontroller module; when the acceleration change is detected to be in accordance with the bumping state and the bumping state continues for the preset duration, the microcontroller module controls the voice module to send out a reminding voice outwards.

The invention also provides a vehicle comprising the automatic return safety handle assembly.

The automatic return safety handle assembly has the advantages that whether the situation that passengers are possibly unbalanced occurs in a vehicle can be detected by detecting the acceleration change, and when the acceleration change is detected to meet the preset condition, namely the situation that the passengers are possibly unbalanced occurs, the handle body is automatically unfolded to be held by the passengers for the first time so as to keep balance, so that the probability of injury of the passengers is reduced.

Drawings

Fig. 1 is a schematic view of a conventional vehicle roof handle.

FIG. 2 is a schematic diagram of the module components of the self-return safety pull assembly of the embodiment.

FIG. 3 is a schematic flow control diagram of an embodiment self-return safety pull assembly.

Detailed Description

The invention is further described below with reference to the accompanying drawings and specific examples.

In the embodiment, referring to fig. 2-3, an automatic return safety handle assembly can be applied to a handle scene of a vehicle ceiling, and includes a handle body 10, a bracket, a circuit board 20, a driving mechanism 30 and a transmission mechanism 40; wherein, the bracket is fixed with the ceiling of the vehicle, and the handle body 10 can rotate relative to the bracket; the circuit board 20 comprises a microcontroller module 21, a human body detection module 22 connected with the microcontroller module 21, and a three-axis acceleration sensor module 23; the human body detection module 22 is used for detecting the existence condition of a person on a seat corresponding to the position of the safety handle, and the three-axis acceleration sensor module 23 is used for detecting the acceleration condition in the three-dimensional direction when the vehicle moves;

when detecting that a person exists in a 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 and does not consume extra power; when the acceleration change is detected to meet the preset condition, the microcontroller module 21 controls the driving mechanism 30 to start, and the driving mechanism 30 drives the transmission mechanism 40 to move and drives the handle body 10 to rotate outwards so that the handle body 10 is in the unfolding state; the preset conditions comprise a jolting condition, a sharp turning condition and a sharp braking condition of the vehicle, and can be judged by detecting whether continuous sudden change of the vertical acceleration, overlarge left and right acceleration and overlarge backward acceleration occur or not respectively; when the acceleration change is not detected continuously within the preset time and meets the preset condition or when the handle body 10 is detected to be held by a hand, the microcontroller module 21 controls the driving mechanism 30 to stop working, and the handle body 10 automatically returns under the condition of no external force.

The automatic return safety handle assembly (hereinafter referred to as a safety handle) of the embodiment can be applied to vehicles, and can also be applied to other vehicles needing handles, and has real-time running vehicle condition detection and automatic unfolding functions; the safety handle is simple to use, and when the seat corresponding to the safety handle is detected to have the existence of a person, the safety handle further detects the current vehicle condition; the vehicle is not different from a common ceiling handle in normal starting, accelerating, braking, decelerating and left-right turning, namely, normal running states, and only when the acceleration change is detected to meet the preset condition, namely, the situation that passengers are possibly unbalanced occurs, the handle body 10 is automatically unfolded, so that the passengers can hold the handle body 10 to keep balance at the first time; after the handle body 10 is unfolded, when the change of the acceleration is not detected continuously within the preset time, preferably 2 to 3 seconds, and the change of the acceleration meets the preset condition, the condition that passengers are unbalanced is possibly eliminated, and the handle body 10 automatically returns under the condition of no external force.

The automatic return safety handle assembly of the embodiment has the function of rapidly unfolding the handle body 10 for the passengers to hold at the first time when the situation that the passengers are possibly unbalanced occurs, so that when the passengers hold the handle body 10, the main task of the safety handle is completed, and the continuous work only wastes power. Therefore, in order to save energy, the driving mechanism 30 of the present embodiment can detect whether it is in the idle state or the load state; when the empty state is detected, the microcontroller module 21 determines that the handle body 10 is held by the hand and controls the driving mechanism 30 to stop working. The main principle is that because the automatic return function of the safety handle is provided by the return spring arranged at the joint of the handle body 10 and the bracket, the driving mechanism 30 drives the safety handle to be unfolded, which is really needed to overcome the resistance of the return spring, that is, the return spring is equivalent to the load of the driving mechanism 30; when the passenger holds the handle body 10 with a hand, the acting force applied to the handle body 10 by the passenger is much larger than the resistance of the return spring, and at this time, the load of the driving mechanism 30 is equivalent to be lost, that is, in an unloaded state, in other words, when the driving mechanism 30 detects that the passenger is in the unloaded state, it actually represents that the passenger holds the handle body 10 with a hand currently.

In this embodiment, the preset conditions include a jolting state, a sharp turning state and a sharp braking state, where the jolting state is different from the sharp turning state and the sharp braking state, the duration of the sharp turning state and the sharp braking state is more short, and the duration of the jolting state is not necessarily long, and in some road sections with poor road conditions, the vehicle is likely to continue to jolt for a long time; in order to reduce the risk of injury to the passenger due to a sustained vehicle bump, the circuit board 20 in this embodiment further includes a voice module 24 connected to the microcontroller module 21; when the acceleration change is detected to be in accordance with the bumping state and the bumping state continues to be in the preset duration, the microcontroller module 21 controls the voice module 24 to send out a reminding voice to remind passengers to hold the handle, so that the passengers are prevented from being injured.

Although the present invention has been described with reference to preferred embodiments, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and various changes in form and details may be made within the scope of the appended claims.

Claims

1. The utility model provides an automatic safe handle assembly of return, includes handle body, support, but the handle body relative support rotation, its characterized in that: the device also comprises a circuit board, a driving mechanism and a transmission mechanism; the circuit board comprises a microcontroller module and a triaxial acceleration sensor module connected with the microcontroller module, wherein the triaxial acceleration sensor module is used for detecting the acceleration condition in the three-dimensional direction when the vehicle moves and sending the acceleration condition to the microcontroller module; 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.

2. The self-return safety handle assembly according to claim 1, wherein: when the acceleration change is continuously not detected within the preset time and meets the preset condition or the handle body is detected to be held by a hand, the microcontroller module controls the driving mechanism to stop working, and the handle body automatically returns under the condition of no external force.

3. The self-return safety handle assembly according to claim 2, wherein: the driving mechanism can detect whether the driving mechanism is in an idle state or a load state; when the handle body is detected to be in the no-load state, the microcontroller module determines that the handle body is held by hands and controls the driving mechanism to stop working.

4. The self-return safety handle assembly according to claim 1, wherein: the circuit board also comprises a human body detection module connected with the microcontroller module; the human body detection module is used for detecting the existence condition of personnel in a corresponding seat and sending the personnel to the microcontroller module; and when the corresponding seat is detected to be in the existence, the microcontroller module detects the acceleration change.

5. The self-return safety handle assembly according to claim 4, wherein: the human body detection module is a pyroelectric induction module.

6. The self-return safety handle assembly according to claim 1, wherein: the preset conditions comprise one or more of a jolting state, a sharp turning state and a sharp braking state.

7. The self-return safety handle assembly according to claim 6, wherein: the circuit board also comprises a voice module connected with the microcontroller module; when the acceleration change is detected to be in accordance with the bumping state and the bumping state continues for a preset duration, the microcontroller module controls the voice module to send out a reminding voice outwards.

8. A vehicle, characterized in that: comprising a self-return safety handle assembly according to any one of claims 1-7.