阅读说明：本技术 可降低工程电动推车撞击安全事故装置 (Device capable of reducing impact safety accident of engineering electric cart ) 是由 朱磊 叶小丹 张卫纲 惠龙 王丹丹 左义 赵北航 冯长征 于 2021-08-03 设计创作，主要内容包括：本发明涉及一种可降低工程电动推车撞击安全事故装置,包括：串联于控制电动推车启停的控制回路中的撞击断电器和脱手断路器；以及电连接于控制回路的断路刹停装置；撞击断电器包括行程开关,设置于车头,车头的前方设置有撞击件；脱手断路器包括磁吸开关,磁吸开关设于车把手处；断路刹停装置包括断路感应器、电动瞬时刹车装置以及备用电源,断路感应器电连接于控制回路并设于车体上,电动瞬时刹车装置设于驱动轮上并与断路感应器信号连接,备用电源电连接电动瞬时刹车装置；本发明能够减少电动车操作失误而发生的隐患。(The invention relates to a device capable of reducing the impact safety accident of an engineering electric cart, which comprises: the impact breaker and the release breaker are connected in series in a control loop for controlling the start and stop of the electric cart; and a breaking brake device electrically connected to the control loop; the impact breaker comprises a travel switch and is arranged on the vehicle head, and an impact piece is arranged in front of the vehicle head; the release breaker comprises a magnetic suction switch which is arranged at the handle of the bicycle; the circuit breaking braking device comprises a circuit breaking inductor, an electric instantaneous braking device and a standby power supply, wherein the circuit breaking inductor is electrically connected to the control loop and arranged on the vehicle body, the electric instantaneous braking device is arranged on the driving wheel and is in signal connection with the circuit breaking inductor, and the standby power supply is electrically connected with the electric instantaneous braking device; the invention can reduce the hidden trouble caused by misoperation of the electric vehicle.)

1. The utility model provides a can reduce electronic shallow striking incident device of engineering, electronic shallow of engineering includes the automobile body, locates the drive wheel of automobile body below, connects the reverse gear of drive wheel and locate the handlebar hand of rear of a vehicle, its characterized in that, can reduce electronic shallow striking incident device of engineering includes:

the impact breaker and the release breaker are connected in series in a control loop for controlling the start and stop of the electric cart; and

an open circuit brake device electrically connected to the control loop;

the impact breaker comprises a travel switch, the travel switch is arranged on a vehicle head, an impact piece is arranged in front of the vehicle head, and the impact piece is connected to the travel switch and triggers the travel switch to disconnect the control loop when being impacted;

the release breaker comprises a magnetic suction switch which is arranged at the handle of the bicycle and is adsorbed with a magnet and is triggered to disconnect the control loop when the magnet is released;

the circuit breaking braking device comprises a circuit breaking inductor, an electric instantaneous braking device and a standby power supply, the circuit breaking inductor is electrically connected to the control loop and arranged on the vehicle body, the electric instantaneous braking device is arranged on the driving wheel and is in signal connection with the circuit breaking inductor, and the standby power supply is electrically connected with the electric instantaneous braking device; and when the open circuit inductor induces that the control loop is disconnected, the open circuit inductor triggers the electric instantaneous brake device to brake the driving wheel.

2. The device for reducing the impact safety accident of the engineering electric cart according to claim 1, wherein the pair of travel switches are oppositely arranged at two ends of the cart head, the impact member is a U-shaped impact rod, an opening of the U-shaped impact rod faces the cart head, and two ends of the U-shaped impact rod are oppositely connected to the pair of travel switches and provided with a return spring.

3. The device for reducing the impact safety accident of the engineering electric cart is characterized in that the magnet is provided with a connecting line for connecting an operator, and the length of the connecting line after being tensioned is consistent with the distance between the man car and the vehicle when the magnet is disconnected.

4. The device for reducing the impact safety accident of engineering electric carts according to claim 1, further comprising

The limiting baffle is arranged above the vehicle head, the impact piece is arranged outside the end head of the vehicle head, and the limiting baffle does not exceed the end head.

5. The device for reducing the impact safety accident of engineering electric carts according to claim 1, further comprising

And the speed limiter is connected with the reverse gear.

6. The device for reducing the impact safety accident of engineering electric carts according to claim 5, further comprising a reverse gear horn, wherein the reverse gear horn is electrically connected with the speed limiter.

Technical Field

The invention relates to the technical field of engineering carts, in particular to a device capable of reducing collision safety accidents of an engineering electric cart.

Background

In the existing building, electric tools are used in large quantity, so that manpower is greatly saved, the construction progress is accelerated, the transportation efficiency of the engineering electric cart is three times that of a common manpower cart, and the cost can be saved by about half. However, the accident that the electric cart impacts the construction elevator door is frequent due to misoperation of the electric cart. The relevant areas are also out of the file that the electric engineering cart is forbidden.

The invention aims to refit the existing electric cart, thereby reducing the hidden trouble caused by misoperation of the electric cart.

Disclosure of Invention

The invention aims to overcome the technical defects and provide a device capable of reducing the collision safety accident of an engineering electric cart and reducing the hidden danger even caused by the misoperation of an electric cart.

The technical scheme for realizing the aim is as follows:

the invention provides a device capable of reducing the impact safety accident of an engineering electric cart, wherein the engineering electric cart comprises a cart body, a driving wheel arranged below the cart body, a reverse gear connected with the driving wheel and a cart handle arranged at the tail of a cart, and the device capable of reducing the impact safety accident of the engineering electric cart is characterized by comprising:

the impact breaker and the release breaker are connected in series in a control loop for controlling the start and stop of the electric cart; and

an open circuit brake device electrically connected to the control loop;

the impact breaker comprises a travel switch, the travel switch is arranged on a vehicle head, an impact piece is arranged in front of the vehicle head, and the impact piece is connected to the travel switch and triggers the travel switch to disconnect the control loop when being impacted;

the release breaker comprises a magnetic suction switch which is arranged at the handle of the bicycle and is adsorbed with a magnet and is triggered to disconnect the control loop when the magnet is released;

the circuit breaking braking device comprises a circuit breaking inductor, an electric instantaneous braking device and a standby power supply, the circuit breaking inductor is electrically connected to the control loop and arranged on the vehicle body, the electric instantaneous braking device is arranged on the driving wheel and is in signal connection with the circuit breaking inductor, and the standby power supply is electrically connected with the electric instantaneous braking device; and when the open circuit inductor induces that the control loop is disconnected, the open circuit inductor triggers the electric instantaneous brake device to brake the driving wheel.

The device for reducing the impact safety accident of the engineering electric cart is further improved in that the travel switches are oppositely arranged at two ends of the cart head, the impact piece is a U-shaped impact rod, the opening of the U-shaped impact rod faces the cart head, and two ends of the U-shaped impact rod are connected to the travel switches in an aligned mode and provided with return springs.

The device for reducing the impact safety accident of the engineering electric cart is further improved in that the magnet is provided with a connecting wire for connecting operators, and the length of the connecting wire after being tensioned is consistent with the distance between people and the cart when the magnet is disengaged.

The invention further improves the device for reducing the impact safety accident of the engineering electric cart, and also comprises

The limiting baffle is arranged above the vehicle head, the impact piece is arranged outside the end head of the vehicle head, and the limiting baffle does not exceed the end head.

The invention further improves the device for reducing the impact safety accident of the engineering electric cart, and also comprises

And the speed limiter is connected with the reverse gear. The device for reducing the impact safety accident of the engineering electric cart is further improved in that the device further comprises a reverse gear horn, and the reverse gear horn is electrically connected with the speed limiter.

The invention can reduce the impact safety accident of the engineering electric cart and has the following beneficial effects:

the electric engineering cart is characterized in that an impact breaker and a dead-hand breaker are arranged in a control loop of the electric cart in series, and an electric connection breaking brake is arranged, so that the engineering cart is guaranteed to be capable of breaking and breaking in time when constructors leave hands and keep away from or impact obstacles, an emergency brake scram is started simultaneously, a plurality of insurance layers are arranged for the electric engineering cart, the electric cart is guaranteed to be capable of being normally used under the condition of guaranteeing enough safety, and the hidden danger caused by misoperation of the electric cart is reduced or even avoided.

Furthermore, the speed limiter is arranged to be connected with the reverse gear and connected with the reverse horn, so that the speed and inertia of the reverse can be reduced, an operator can be reminded of avoiding the reverse in time, and the potential safety hazard of the engineering electric cart during the reverse process is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a device for reducing the impact safety accident of an engineering electric cart.

Fig. 2 is a schematic structural diagram of a collision breaker in the device for reducing the collision safety accident of the engineering electric cart.

Fig. 3 is a use state diagram of the device for reducing the impact of the engineering electric cart on the barrier and driving the pair of travel switches to be disconnected when the impact rod impacts the barrier.

Fig. 4 is a using state diagram of the magnetic circuit breaker switch which can reduce the connecting line of the disconnecting breaker in the device for reducing the impact safety accident of the engineering electric cart and drive the magnetic suction head to break.

Fig. 5 is a closed circuit diagram formed by connecting various elements in the device for reducing the impact safety accident of the engineering electric cart.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Referring to fig. 1 to 5, the present invention provides a device for reducing the impact safety accident of an engineering electric cart, wherein the engineering electric cart comprises a cart body, a driving wheel arranged below the cart body, a reverse gear connected to the driving wheel, and a handle arranged at the tail of the cart, and the device comprises:

impact breaker 10 and release breaker 20 connected in series in the control circuit of the electric cart and

an opening brake device 30 electrically connected to said control circuit;

the impact breaker 10 comprises an impact piece 11 and a pair of travel switches 12, the travel switches 12 are connected in series with a control loop, the travel switches 12 are oppositely arranged at two ends of a head 100 of the electric cart, the impact piece 11 is arranged at the front part of the head 100, and the impact piece 11 is connected with contacts of the travel switches 12;

the release breaker 20 comprises a magnetic switch 21, a magnet 23 and a connecting wire 22, the magnetic switch 21 is connected in series with the control circuit, the magnetic switch 21 is arranged at the handle of the electric cart, and the magnet 23 is adsorbed on the magnetic switch 21 and is connected with an operator through the connecting wire 22;

the breaking brake device 30 includes a breaking inductor (not shown), an electric instantaneous brake device 32 and a standby power supply 31, the breaking inductor is electrically connected to the control loop and is disposed on the electric cart, the electric instantaneous brake device 32 is disposed on the driving wheel of the electric cart and is in signal connection with the breaking inductor, and the standby power supply 31 is electrically connected to the electric instantaneous brake device 32.

Specifically, travel switch 12 can adopt direct action travel switch or roller type travel switch, striking piece 11 adopts U style of calligraphy striking rod, U style of calligraphy striking rod adopts steel to make, the front portion of striking piece 11 extends the outer certain distance of end of locomotive 100, when adopting direct action travel switch, the both ends counterpoint of striking piece 11 is located the one side that is close to direct action travel switch, and can pivoting, thereby the contact of direct action travel switch that the linkage triggered, when striking piece 11 strikes the barrier that is located locomotive 100 the place ahead, striking piece 11 bumps direct action travel switch's contact, at this moment, travel switch 12 is in the off-state, thereby make whole control circuit outage, because the travel switch 12 disconnection battery of this department can not supply power for the motor, cause the automobile body to lose initiative power of advancing. When the striker 11 leaves an obstacle in front of the vehicle head 100, the contacts automatically reset under the action of the return spring in the travel switch 12, at which point the travel switch 12 reconnects to energize the control circuit.

In this embodiment, the travel switch 12 may also be a roller travel switch, the striking member 11 forms a fixed angle with the stacking plate surface of the vehicle head 100, when the striking member 11 strikes an obstacle located in front of the vehicle head 100, the striking member 11 can rotate around a shaft, rotate downward by a fixed angle, and press a contact, at this time, the travel switch 12 is in a disconnected state, so that the entire control circuit is powered off, and the vehicle body loses active forward power because the travel switch 12 at this position is disconnected from a battery and cannot supply power to a motor. When the striker 11 leaves an obstacle located in front of the vehicle head 100, the return spring returns the travel switch 12, at which time the travel switch 12 is reconnected to energize the control circuit and power is restored.

As a preferred embodiment of the device for reducing the collision safety accident of the engineering electric cart, the device further comprises a limit baffle 40, the limit baffle 40 is used for preventing stacked materials on the cart from exceeding the front part of the collision part 11 to cause the collision part 11 to be incapable of triggering, the limit baffle 40 is erected above the cart head 100, and the limit baffle 40 does not exceed the end of the cart head 100. In this embodiment, the impact breaker 10 needs to fully utilize the impact piece 11 to impact the obstacle and then rotate to impact the travel switch 12 to form a circuit break, if the stacked material exceeds the impact piece 11, the stacked material firstly impacts the obstacle when the engineering cart impacts the obstacle, so that the impact breaker 10 is caused to be in failure, and therefore the limit baffle 40 is designed to prevent the stacked material on the cart from exceeding the impact piece 11, and during the setting, preferably, the limit baffle 40 is erected above the cart head 100 and does not exceed the end of the cart head 100, so that an effective space separation can be formed in the front range outside the end of the cart head 100, and the stacked material is prevented from exceeding the front of the impact piece 11.

In this embodiment, the magnetic disconnecting switch 21 can be a self-made device or can be a conventional reed switch, and specifically, the magnetic disconnecting switch 21 in this embodiment adopts a reed switch, two ends of the reed switch are connected to a wire inlet and a wire outlet of an electric wire in a direct current closed circuit, a metal reed contact in the reed switch is controlled to be disconnected or connected by the attraction of a magnet 23, and the connecting wire 22 is a common flexible wire, preferably, the length of the flexible wire is set according to the distance of a control release handle, preferably, the length of the flexible wire is consistent with the distance between a person and a vehicle when the magnet is released after the connecting wire 22 is tensioned, when the magnetic disconnecting switch is used, one end of the connecting wire 22 is connected to the magnet 23, and the other end of the connecting wire 22 can be tied to an operator, when the vehicle body is released and is away from the release handle, the magnet 23 can be pulled away from the metal reed contact of the reed switch by the connecting wire 22 to cause the contact to be disconnected to form an open circuit, similarly, because of the direct current closed circuit, the battery can not supply power to the motor at the moment, so that the vehicle body loses active advancing power.

In this embodiment, although the break will cause the battery not to supply power to the motor, so as to cause the vehicle body to lose power, however, the vehicle body will continue to run forward due to inertia to cause a collision, therefore, in order to avoid the collision caused by the inertia, the invention further comprises the above-mentioned break braking device 30, when any one of the above-mentioned break conditions causes any one of the closed circuits to break, the break sensor will receive the signal of the circuit break and immediately sense, transmit the signal to the electric instant brake 32, and the electric instant brake 32 is started by the backup power supply 31 to brake the engineering electric cart. It should be noted that the time of the whole brake is controlled within 2-3 seconds, and the brake is immediately disconnected after the vehicle body is braked and stopped, so that the condition that the construction personnel trailer backwards is not influenced is ensured.

As a preferred embodiment of the device for reducing the impact safety accident of the engineering electric cart, the device further comprises a speed limiter 50, wherein the speed limiter 50 is electrically connected in series in the control loop and is connected with the reverse gear. Specifically, when the engineering electric cart turns and finely adjusts the cart body, a reverse gear needs to be hung, in order to avoid potential safety hazards caused by improper operation of a reverse function, the speed limiter 50 is connected in a closed loop, when the engineering electric cart is hung to the reverse gear, the speed limiter 50 is immediately started, and the speed of the reverse gear is controlled within 0.3m/s, so that the engineering electric cart basically has no inertia during reversing, enough reaction time is reserved for an operator, in addition, the reverse gear control device is better, the reverse gear control device further comprises a reverse gear horn 60, the reverse gear horn 60 is electrically connected with the reverse gear limiter 50, the reverse gear horn 60 selects a buzzer, and after the reverse gear is started, the buzzer continuously and repeatedly gives an alarm, can select warning words such as 'please notice to reverse the vehicle', and further prompts the operator to notice to reverse the vehicle, so that the potential safety hazards are further reduced.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.