阅读说明：本技术 自动刹车的智能推车 (Intelligent cart with automatic brake function ) 是由 高翔 王俊马 于 2019-09-09 设计创作，主要内容包括：本发明公开了一种自动刹车的智能推车,包括推车车架、车轮组件、感应测量装置、用于对所述车轮组件进行制动的刹车装置以及用于控制所述刹车装置进行刹车或解刹的控制装置,所述感应测量装置包括安装在所述推车车架上的测距仪,所述测距仪用于监测所述测距仪与使用者之间的实时距离L并将该实时距离L发送至所述控制装置,所述控制装置接收所述实时距离L并判断该实时距离L与预设的第一距离阈值和第二距离阈值之间的关系,所述智能推车具有自由状态和锁定状态,当所述实时距离L大于或等于第一距离阈值时,所述智能推车处于所述锁定状态,当所述实时距离L小于或等于第二距离阈值时,所述智能推车处于所述自由状态。(The invention discloses an intelligent cart capable of automatically braking, which comprises a cart frame, a wheel assembly, an induction measuring device, a braking device and a control device, wherein the braking device is used for braking the wheel assembly, the control device is used for controlling the braking device to brake or brake, the induction measuring device comprises a distance meter arranged on the cart frame, the distance meter is used for monitoring a real-time distance L between the distance meter and a user and sending the real-time distance L to the control device, the control device receives the real-time distance L and judges the relation between the real-time distance L and a preset distance threshold value and a second distance threshold value, the intelligent cart has a free state and a locking state, when the real-time distance L is larger than or equal to a distance threshold value, the intelligent cart is in the locking state, and when the real-time distance L is smaller than or equal to the second distance threshold value, the intelligent cart is in the free state.)

1, kind of intelligent shallow of automatic brake, including shallow frame, wheel subassembly, be used for right the brake equipment that the wheel subassembly braked and be used for controlling brake equipment brakes or the controlling means who releases, its characterized in that, intelligent shallow still includes response measuring device, controlling means and response measuring device, brake equipment pass through wired and/or wireless mode and are connected, response measuring device is including installing distancer on the shallow frame, the distancer is used for monitoring real-time distance L between distancer and the user and with this real-time distance L send to controlling means, controlling means receives this real-time distance L and judge the relation between this real-time distance L and the predetermined th distance threshold value and the second distance threshold value, intelligent shallow has free state and locking state, works as real-time distance L is greater than or equal to th distance threshold value, intelligent shallow is in locking state, works as real-time distance L is less than or equal to the second distance threshold value, intelligent shallow is in free state.

2. The intelligent automatic braking cart according to claim 1, wherein when the control device determines that the real-time distance L is greater than or equal to the th distance threshold, the control device sends a braking signal to the braking device, the braking device receives the braking signal and brakes the wheel assembly, the intelligent cart is in the locked state, when the control device determines that the real-time distance L is less than or equal to the second distance threshold, the control device sends a braking releasing signal to the braking device, the braking device receives the braking signal and releases the braking of the wheel assembly, and the intelligent cart is in the free state.

3. The auto-braking smart cart of claim 2, wherein the distance threshold is not equal to a second distance threshold, and the second distance threshold is less than the distance threshold.

4. The auto-braking smart cart of claim 3, wherein the smart cart further has a random state, and when the smart cart is in the random state, the real-time distance L is greater than the second distance threshold and the real-time distance L is less than the th distance threshold, the braking device remains braked or released.

5. The smart cart with automatic braking according to claim 4, wherein the braking device keeps braking and the wheel assembly is locked when the real-time distance L is decreased from being greater than or equal to the th distance threshold value to the second distance threshold value, and the braking device keeps braking and the wheel assembly is free when the real-time distance L is increased from being less than or equal to the second distance threshold value to the th distance threshold value.

6. The auto-braking smart cart of any one of claims 1-5, , wherein the cart frame comprises a cart handle and a rear support connection rod, the range finder has a measurement direction at a rear of the smart cart, the rear is a space on a side of the cart handle away from the smart cart .

7. An automatically braking smart cart as claimed in claim 6, wherein said rangefinder is mounted on said cart handle and/or on a rear support connection bar.

8. The smart cart with automatic brake of claim 7, wherein the distance measuring instrument is or more of a laser distance measuring instrument, an ultrasonic distance measuring instrument and an infrared distance measuring instrument.

9. The smart cart with automatic brake of claim 1, wherein the distance meter sends a measuring signal and receives the measuring signal returned by the user to obtain the real-time distance L.

10, kinds of intelligent shallow of automatic brake, including shallow frame, wheel subassembly, be used for right the brake equipment that the wheel subassembly braked and be used for controlling brake equipment brakes or the controlling means who releases, its characterized in that, intelligent shallow still includes response measuring device, controlling means and response measuring device, brake equipment pass through wired and/or wireless mode and are connected, response measuring device is including installing distancer on the shallow frame, the distancer is used for monitoring real-time distance L between distancer and the user and with this real-time distance L send to controlling means, controlling means receives real-time distance L and judges the relation between this real-time distance L and the predetermined distance threshold value, intelligent shallow has free state and locking status, works as real-time distance L is greater than or equal to when the distance threshold value, intelligent shallow is in locking status, works as real-time distance L is less than when the distance threshold value, intelligent shallow is in free state.

Technical Field

The invention relates to the technical field of carts, in particular to intelligent carts capable of automatically braking and releasing brakes.

Background

However, the prior art brake devices require manual touch to brake, which is inconvenient, and the stroller itself cannot automatically brake after the user forgets to brake, which may cause danger.

Disclosure of Invention

In view of the above, in order to overcome the defects of the prior art, the present invention aims to provide intelligent carts capable of automatically performing braking and braking release.

In order to achieve the purpose, the invention adopts the following technical scheme:

automatic braking's intelligent shallow, including shallow frame, wheel subassembly, response measuring device, be used for right the brake equipment that the wheel subassembly carries out the braking and be used for controlling brake equipment carries out the brake or the controlling means who breaks off, controlling means and response measuring device, brake equipment pass through wired and/or wireless mode such as bluetooth and connect, response measuring device is including installing distancer on the shallow frame, the distancer is used for monitoring real-time distance L between distancer and the user and with this real-time distance L send to controlling means, controlling means receives real-time distance L and judge the relation between this real-time distance L and the predetermined distance threshold value and second distance threshold value, intelligent shallow has free state and locking status, works as when real-time distance L is greater than or equal to distance threshold value, intelligent shallow is in locking status, works as real-time distance L is less than or equal to the second distance threshold value, intelligent shallow is in free state.

Through predetermineeing th distance threshold value and second distance threshold value in controlling means to judge the relation between real-time distance L and th distance threshold value and the second distance threshold value, thereby control brake equipment and brake or separate the brake, do not need the manpower to touch brake equipment and can brake, not only make things convenient for also safer more.

Preferably, when the control device judges that the real-time distance L is greater than or equal to the th distance threshold value, the control device sends a braking signal to the braking device, the braking device receives the braking signal and brakes the wheel assembly, the intelligent cart is in the locking state, when the control device judges that the real-time distance L is less than or equal to the second distance threshold value, the control device sends a braking releasing signal to the braking device, the braking device receives the braking releasing signal and releases the brake of the wheel assembly, and the intelligent cart is in the free state.

More preferably, the th distance threshold is not equal to a second distance threshold, and the second distance threshold is less than the th distance threshold.

preferably, the intelligent cart further has a random state, when the intelligent cart is in the random state, the real-time distance L is greater than the second distance threshold and less than the th distance threshold, and the braking device keeps braking or braking.

Still preferably, when the real-time distance L is decreased from the th distance threshold value to the second distance threshold value, the intelligent cart is transited from the locking state to the random state, the brake device keeps braking and does not brake, and the wheel assembly is locked, and when the real-time distance L is increased from the th distance threshold value to the second distance threshold value, the intelligent cart is transited from the free state to the random state, the brake device keeps braking and does not brake, and the wheel assembly is free.

Specifically, when the user moves from the position greater than or equal to the th distance threshold to the direction close to the intelligent cart, namely when the real-time distance L is reduced from the position greater than or equal to the th distance threshold to the second distance threshold, the intelligent cart is transited from the locked state to the random state, the brake device keeps braking and does not perform braking, namely the wheel assembly is still locked, only when the real-time distance L is reduced to be less than or equal to the second distance threshold, the intelligent cart is transited from the random state to the free state, the brake device is unlocked, the wheel assembly can move freely, when the user moves from the position less than or equal to the second distance threshold to the direction far away from the intelligent cart, namely the real-time distance L is increased from the position less than or equal to the second distance threshold to the th distance threshold, the intelligent cart is transited from the free state to the brake state, the wheel assembly can not move to the random state, only when the wheel assembly cannot be transited to the free state, the wheel assembly can not be transited to the free state, the wheel assembly can be moved to the brake device is not locked, and the wheel assembly can be moved to the free brake device is not increased from the real-time distance L to the position.

Preferably, the cart frame includes a cart handle and a rear support connecting rod, the measuring direction of the range finder is the rear of the smart cart, and the rear is a space where the cart handle is far away from the side of the smart cart .

More preferably, the rangefinder is mounted on the cart handle and/or on a rear support connection bar.

, the rangefinder is preferably or more of laser rangefinder, ultrasonic rangefinder and infrared rangefinder.

Because the shallow handle is all installed at the rear portion of shallow, the user also all uses the shallow in the rear of shallow, so the distancer is installed at shallow handle or rear carriage connecting rod at shallow rear portion, the distancer is installed and can be detected user's upper limbs on the shallow handle like the waist, the chest, real-time distance L between back etc. and the distancer, can detect real-time distance L between user's shank and the distancer when the distancer is installed on the rear carriage connecting rod in order to detect more accurately, can install or a plurality of distancers on shallow handle and rear carriage connecting rod respectively simultaneously, the kind of distancer also can make up.

Preferably, the distance meter sends a measurement signal and receives the measurement signal returned by the user to obtain the real-time distance L.

If the user has left the measuring range of distancer, the unable real-time distance between measuring user and the distancer of distancer promptly, then can think real-time distance L this moment and be infinitely great, real-time distance L is greater than apart from the threshold value promptly, and controlling means control brake equipment brakes, and wheel subassembly is locked.

Taking distance meters arranged in the middle of the rear bracket connecting rod as an example, and the second distance threshold is smaller than the distance threshold, the working principle of the automatic braking intelligent cart is explained in detail.

The invention relates to an self-braking intelligent cart, wherein a cart frame comprises a cart handle, a rear wheel bracket connecting rod, a front wheel bracket connecting rod, a push rod, a connecting rod, a rear wheel bracket, a front wheel bracket and the like, wherein the cart handle and the rear wheel bracket connecting rod are positioned at the rear part of the intelligent cart, distance meters with the measuring direction at the rear part of the intelligent cart are arranged in the middle of the rear wheel bracket connecting rod, the distance meters are used for monitoring the real-time distance L between the distance meters and a user, a memory with th distance threshold and a second distance threshold and a comparator for comparing the relation between the real-time distance L and the th distance threshold or the second distance threshold are arranged in a control device, the control device receives a position signal converted from the real-time distance L and sends a control signal to a braking device after comparing the position signal with the th distance threshold or the second distance threshold, and the braking device receives the control signal and carries out braking or braking operation, so that a wheel assembly is locked or.

When the real-time distance L increases to be equal to or greater than the second distance threshold value but still less than the th distance threshold value, the intelligent cart is in a random state, the brake device does not act, the wheel assembly can still move freely, when the real-time distance L increases to be equal to or greater than the th distance threshold value, the control device sends a brake signal to the brake device, the brake device receives the brake signal and acts to brake the wheel assembly, the wheel assembly cannot move freely, and the intelligent cart is in a locked state.

When the real-time distance L is smaller than or equal to the second distance threshold, the control device sends an unlocking signal to the brake device, the brake device receives the unlocking signal and acts to unlock the wheel assembly, the wheel assembly freely moves, and the intelligent cart is in a free state.

The invention also provides other intelligent trolleys with automatic brakes, which comprise a trolley frame, wheel assemblies, brake devices for braking the wheel assemblies, and a control device for controlling the brake devices to brake or brake, each intelligent trolley further comprises an induction measuring device, the control device is connected with the induction measuring device and the brake devices in a wired and/or wireless mode, each induction measuring device comprises a distance meter installed on the trolley frame, each distance meter is used for monitoring the real-time distance L between the distance meter and a user and sending the real-time distance L to the control device, the control device receives the real-time distance L and judges the relation between the real-time distance L and a preset distance threshold, each intelligent trolley has a free state and a locked state, when the real-time distance L is larger than or equal to the distance threshold, the intelligent trolley is in the locked state, when the real-time distance L is smaller than the distance threshold, the intelligent trolley is in the free state, when the real-time distance L is smaller than the distance threshold, the intelligent trolley is in the locked state, when the real-time distance L is smaller than the distance threshold, the intelligent trolley is equal to the second distance threshold, namely, the intelligent trolley is in the unlocked state, and the intelligent trolley is in the state, and the intelligent trolley is connected with the brake devices, when the distance L is equal to the distance threshold, namely, the intelligent trolley is equal to the distance threshold, or equal to the.

Compared with the prior art, the intelligent cart with the automatic brake has the advantages that the distance meter for detecting the real-time distance between the user and the cart is mounted on the cart frame, the real-time distance is judged, automatic brake and brake release are achieved through the control device and the brake device, when the real-time distance is larger than or equal to the th distance threshold value, the intelligent cart brakes, and when the real-time distance is smaller than or equal to the second distance threshold value, the intelligent cart releases the brake, so that the intelligent cart with the automatic brake is safer and more convenient compared with the traditional cart.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic perspective view of an intelligent cart of the present invention;

wherein: the device comprises a cart handle-1, a rear wheel bracket connecting rod-2, a control device-3, a power device-4, a rotating shaft-5, a front wheel-6, a rear wheel-7, a front wheel bracket connecting rod-8, a push rod-9, a connecting rod-10, a rear wheel bracket-11, a front wheel bracket-12, a distance meter-13 and a brake device-14.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a partial embodiment of the present invention , but not a complete embodiment.