Automatic serving trolley

Abstract

The utility model discloses an automatic serving trolley, which can move on a track on which at least one direction sensing piece is respectively arranged, and comprises a trolley body, a front wheel frame, a rear wheel frame, a plurality of front driving wheels, a plurality of rear driving wheels and a control device, particularly, an inductor which is connected with a control device and can detect the direction induction piece and two front drive motors which are connected with the front drive wheels are arranged on the vehicle body, and after the inductor detects a signal of the direction induction piece, the inductor transmits the signal to the control device. The control device is used for controlling the front drive motors to drive the front drive wheels located on the two sides of the front wheel frame to rotate at different rotating speeds, so that the vehicle body is controlled to make turning movement, the complexity of the turning structure design of the automatic serving vehicle is greatly reduced, and the manufacturing and follow-up maintenance cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to a food delivery design, in particular to an automatic food delivery vehicle. Background Art

[0002] As modern people have more and more opportunities to dine out or have a rest and drink tea, catering operators have to constantly innovate to attract more customers. As for the conditions for the success of catering operations, in addition to the deliciousness of the food, what is more important for the psychological level of customers is the efficiency and quality of the service, as well as the creativity of the catering operators to attract customers. The services provided by restaurant service staff are nothing more than greeting customers, ushering in seats, ordering dishes, serving dishes, and cleaning up the table. However, due to the limited manpower of catering operators, sometimes when there are a large number of customers and more service content, customers often wait and dishes are served slowly. In addition, with the increase in wages, it is difficult to recruit and train personnel, and the shortage of workers has become increasingly serious. Therefore, in this case, how to use automation equipment to replace staff, reduce the service items of service staff, and improve the quality and efficiency of other services is the direction of effort.

[0003] See also Figure 1 The existing automatic meal delivery vehicle 1 comprises a vehicle body 11 capable of running on a track (not shown), a front wheel frame 12 and a rear wheel frame 13 respectively arranged on the vehicle body 11, two front driving wheels 14 arranged on the front wheel frame 12, two rear driving wheels 15 arranged on the rear wheel frame 13, driving motors 16 respectively installed on the front and rear driving wheels 14, 15, a steering motor 17 respectively controlling the swing of the front and rear wheel frames 12, 13, and a control device 18 for controlling the rotation of the front and rear driving wheels 14, 15 and the front and rear wheel frames 12, 13; wherein, the existing automatic meal delivery vehicle 1 uses a total of four driving motors 16 and cooperates with two steering motors 17 for a total of six motors to control the front and rear driving wheels 14, 15 of the vehicle body 11 to rotate, and the front and rear wheel frames 12, 13 to rotate to turn.

[0004] Therefore, in the actual operation process, it is mainly driven by multiple driving motors 16 and multiple steering motors 17, which has the risk of high failure rate. At the same time, when one of the driving motors 16 or one of the steering motors 17 is damaged, it will directly affect the operation and turning operation of the automatic food delivery vehicle 1. Moreover, the automatic food delivery vehicle 1 adopts different mechanisms for moving forward and turning, resulting in increased production and maintenance costs. Therefore, how to streamline the structure of the automatic food delivery vehicle 1 and reduce the manufacturing cost and subsequent maintenance cost of the automatic food delivery vehicle 1 is the purpose of the present invention. Utility Model Content

[0005] Therefore, the purpose of the present invention is to provide an automatic food delivery vehicle, which can effectively reduce the manufacturing cost and subsequent maintenance cost of the turning structure.

[0006] Therefore, the utility model provides an automatic meal delivery vehicle, which can be moved on a track with at least one direction sensing element, and the automatic meal delivery vehicle includes a vehicle body, front and rear wheel frames respectively arranged on the vehicle body, a plurality of front drive wheels arranged on the front wheel frame, a plurality of rear drive wheels arranged on the rear wheel frame, front drive motors respectively driving the front drive wheels to rotate, and a control device for controlling the driving of the plurality of front drive motors; wherein, a sensor connected to the control device is arranged on the vehicle body, and the sensor can detect the direction sensing element arranged on the track, so that after the sensor detects the signal of the direction sensing element, the control device will control the front drive motor to drive the plurality of front drive wheels at different speeds respectively, so that the front drive wheels arranged on both sides of the front wheel frame have different speed differences, and the front wheel frame will turn due to the deviation of the two front drive wheels. In this way, only the speed difference of the front drive wheels is needed to make the front wheel frame produce an offset turn, and no additional complex steering motor and mechanism are required. The automatic food delivery vehicle can be driven to turn smoothly and accurately, effectively reducing the manufacturing cost and subsequent maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of an existing automatic food delivery vehicle.

[0008] Figure 2 It is a structural schematic diagram of the first preferred embodiment of the utility model.

[0009] Figure 3 This is a schematic diagram of the use status of the first preferred embodiment of the utility model.

[0010] Figure 4 It is a structural schematic diagram of the first preferred embodiment of the utility model.

[0011] Figure 5 It is a partial schematic diagram of the first preferred embodiment of the utility model.

[0012] Figure 6 This is another schematic diagram of linkage changes of the first preferred embodiment of the utility model.

[0013] Figure 7 This is another schematic diagram of linkage changes of the first preferred embodiment of the utility model.

[0014] Figure 8 It is a structural schematic diagram of the second preferred embodiment of the utility model.

[0015] Fig. 9 This is a schematic diagram of the use status of the second preferred embodiment of the utility model.

[0016] Explanation of symbols:

[0017] [Existing structure]

[0018] 1: Automatic food delivery car

[0019] 11: Car body

[0020] 12:Front wheel frame

[0021] 13: Rear wheel frame

[0022] 14:Front drive wheel

[0023] 15: Rear drive wheel

[0024] 16: Drive motor

[0025] 17: Steering motor

[0026] 18: Control device

[0027] [The utility model]

[0028] 3: Automatic food delivery car

[0029] 31: Car body

[0030] 311:Front limit slot

[0031] 312: Rear limit slot

[0032] 32:Front wheel frame

[0033] 33: Rear wheel frame

[0034] 34:Front drive wheel

[0035] 35: Rear drive wheel

[0036] 36: Control device

[0037] 37: Front drive motor

[0038] 38: Sensor

[0039] 39: Rear drive motor

[0040] 321: First guide wheel

[0041] 331: Second guide wheel

[0042] 4: Track

[0043] 41: Straight section

[0044] 42: Curved road section

[0045] 5: Direction sensor

[0046] 6: Reset induction parts DETAILED DESCRIPTION

[0047] The above and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiments with reference to the drawings.

[0048] See also Figure 2 , Figure 3 In the first preferred embodiment of the utility model, the automatic meal delivery vehicle 3 is used to run on a track 4, and the track 4 includes at least one straight section 41 and at least one curved section 42 connected to the straight section 41, and at least one direction sensing element 5 is provided on the track 4, that is, the direction sensing element 5 can be set in front of the curved section 42.

[0049] Related References Figure 2 , Figure 4 The automatic food delivery vehicle 3 comprises a vehicle body 31, a front wheel frame 32 pivotally mounted on the vehicle body 31, a rear wheel frame 33 mounted on the vehicle body 31 and arranged opposite to the front wheel frame 32, front drive wheels 34 respectively mounted on both sides of the front wheel frame 32, at least two rear drive wheels 35 mounted on the rear wheel frame 33, front drive motors 37 respectively driving the front drive wheels 34 to rotate, and a control device 36 controlling the operation of the front drive motor 37; wherein, a sensor 38 connected to the control device 36 and capable of detecting the direction sensing element 5 is mounted on the vehicle body 31, and after the sensor 38 detects the direction sensing element 5, the sensor 38 transmits the signal to the front drive motor 37. The control device 36 controls the front drive motors 37 to generate different rotation speeds, that is, the two front drive motors 37 are respectively linked to the front drive wheels 34 on both sides of the front wheel frame 32, and when the two front drive motors 37 are separately linked to the front drive wheels 34 on both sides of the front wheel frame 32 at different rotation speeds, the two front drive wheels 34 will generate a rotation speed difference, so that the front wheel frame 32 is tilted toward the front drive wheel 34 with a slower rotation speed, so that the front wheel frame 32 generates a rotation angle, driving the automatic food delivery vehicle 3 to turn along the curved road section 42; in addition, in this embodiment, the two front drive motors 37 are respectively directly driven by the two front drive wheels 34 (such as Figure 5 ), or as shown in Figure 6 For gear linkage, or Figure 7 It is belt-linked, and this embodiment is described below by taking direct linkage as an example; furthermore, in this embodiment, in order to make the turn smoother, a front limit groove 311 can be opened on the vehicle body 31 in due time, and the front limit groove 311 can be used for the front wheel frame 32 to be protruded and extended.

[0050] See also Figure 2 , Figure 3 , Figure 4When the automatic meal delivery vehicle 3 is in use, it runs on a track 4, and the control device 36 of each automatic meal delivery vehicle 3 will control the front drive motor 37 to synchronously generate a certain rotation speed, so that the two front drive wheels 34 run on the straight section 41 at the same speed. When the automatic meal delivery vehicle 3 runs into the curved section 42, the sensor 38 will detect the direction sensing member 5 located on the track 4, and the control device 36 will control the two front drive motors 37 to respectively generate different rotation speeds to drive the two front drive wheels 34. That is, assuming that when one of the front drive motors 37 is linked to the device The front drive wheel 34 is arranged on the right side of the front wheel frame 32, and the other front drive motor 37 is linked to the front drive wheel 34 on the left side of the front wheel frame 32. If the automatic meal delivery vehicle 3 is to be driven to the right, the control device 36 will control the front drive motor 37 linked to the front drive wheel 34 on the right side of the front wheel frame 32 to have a rotation speed lower than the front drive motor 37 on the front drive wheel 34 on the left side of the front wheel frame 32, thereby causing a rotation speed difference between the two front drive wheels 34, and the rotation speed difference will drive the front wheel frame 32 to deflect to the right during the movement, thereby driving the automatic meal delivery vehicle 3 to turn right.

[0051] On the contrary, when the automatic meal delivery vehicle 3 is to be controlled to turn left, the control device 36 will control the plurality of front drive motors 37. The front drive motor 37 of the right front drive wheel 34 will have a speed difference with the front drive motor 37 of the left front drive wheel 34, because the speed of the front drive motor 37 of the right front drive wheel 34 is greater than that of the front drive motor 37 of the left front drive wheel 34 of the front wheel frame 32, so that the front wheel frame 32 will deviate to the left and produce a left turn operation. At the same time, in this embodiment, the front limit groove 311 is provided to limit the front wheel frame 32 during turning, so that the front wheel frame 32 can avoid excessive deflection, and the turning process of the front wheel frame 32 is smoother. Therefore, the utility model utilizes the sensor 38 of the control device 36 in combination with the design of the direction sensing element 5, and there is no need to provide a complex control system or a turning mechanism on the automatic meal delivery vehicle 3. The front drive motor 37 can drive the two front drive wheels 34 to generate a speed difference, so that the automatic food delivery vehicle 3 can perform a turning operation, which effectively reduces the manufacturing cost and subsequent maintenance cost. In addition, when the automatic food delivery vehicle 3 drives out of the straight section 41 from the curved section 42, the number of seconds for maintaining the speed difference can be preset on the control device 36, so that after the automatic food delivery vehicle 3 calculates the number of seconds, the control device 36 will control the front drive motor 37 and the rear drive motor 39 to drive at the same speed, or a return sensing element 6 can be provided on the track 4. When the sensor 38 senses the return sensing element 6, the control device 36 will control the front drive motor 37 and the rear drive motor 39 to drive at the same speed, so that after the automatic food delivery vehicle 3 drives out of the curved section 42 and enters the straight section 41, the automatic food delivery vehicle 3 can stably operate on the track 4.

[0052] See also Figure 8 , Fig. 9 , the second preferred embodiment of the automatic meal delivery vehicle 3 of the utility model, the automatic meal delivery vehicle 3 of this embodiment still includes the structure and connection relationship described in the first embodiment, and its structure and the effect to be achieved are the same as those of the first embodiment, and will not be described in detail; in particular, in this embodiment, the rear wheel frame 32 is provided with rear drive motors 39 respectively connected to the plurality of rear drive wheels 35, and when the sensor 38 detects the direction sensing element 5, the control device 36 will control the plurality of rear drive motors 39 to drive the two rear drive wheels 35 at different speeds, so that the two rear drive wheels 35 have different speed differences, and the rear wheel frame 33 generates a turning operation; in addition, a rear limit groove 312 is provided on the vehicle body 31, and the rear limit groove 312 is just for the rear wheel frame 33 to extend, so that the rotation process of the rear wheel frame 33 is limited within the rear limit groove 312, and the rear wheel frame 33 is prevented from over-rotating. The first and second guide wheels 321 and 331 can run close to the track 4 to increase stability. Therefore, when the automatic meal delivery vehicle 3 is driven, the front drive motors 37 and the rear drive motors 39 respectively control the front and rear drive wheels 34 and 35. At the same time, the front drive motors 37 are used to link the front drive wheels 34 at different speeds to generate a speed difference, and the front wheel frame 32 is controlled to swing and turn, so that the automatic meal delivery vehicle 3 can be smoothly driven to move forward and turn. Furthermore, the rear drive motors 39 can also be used to link the rear drive wheels 35 at different speeds to generate a speed difference, and the rear wheel frame 33 can be controlled to swing and turn, so that the automatic meal delivery vehicle 3 can be more stable and smooth when driving on the track 4.

[0053] To summarize the above, the automatic food delivery vehicle of the present invention mainly has a direction sensing component disposed on the track and in front of the curved road section, and a sensor connected to the control device and capable of detecting the direction sensing component is disposed on the vehicle body. After the direction sensing component is detected by the sensor, the control device will control the plurality of front drive motors to output different rotation speeds to respectively link the two front drive wheels to produce different rotation speed differences, thereby causing the front wheel frame to produce a deflection and controlling the automatic food delivery vehicle to produce a turning operation. In this way, the automatic food delivery vehicle can be smoothly driven to turn without the need for an additional complex steering mechanism, which can effectively reduce the manufacturing cost of the automatic food delivery vehicle and simplify the overall structure of the automatic food delivery vehicle, thereby reducing the subsequent maintenance cost. Therefore, the purpose of the present invention can indeed be achieved.

[0054] The above description is only for explaining the preferred embodiment of the utility model, and it cannot be used to limit the scope of the implementation of the utility model. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the utility model and the content of the utility model specification should still fall within the scope covered by the utility model patent.

Claims

1. An automatic meal delivery vehicle, which moves on a track, and the automatic meal delivery vehicle comprises a vehicle body that can run on the track, a front wheel frame and a rear wheel frame respectively arranged on the vehicle body, two front driving wheels arranged on the front wheel frame, two rear driving wheels arranged on the rear wheel frame, and a control device for controlling the rotation of a plurality of the front driving wheels and the rear driving wheels; characterized in that: At least one direction sensing element is arranged on the track; in addition, a sensor connected to the control device and capable of detecting the direction sensing element, and two front drive motors connected to the front drive wheels are arranged on the vehicle body. When the vehicle body passes to the position of the direction sensing element, the sensor detects the direction sensing element signal, and then the sensor transmits the signal to the control device, and the control device controls the plurality of front drive motors to drive the plurality of front drive wheels to rotate at different speeds, so that the plurality of front drive wheels produce different speed differences, so that the front wheel frame produces an offset action, thereby controlling the vehicle body to produce a turning movement.

2. The automatic meal delivery vehicle according to claim 1, characterized in that: Rear drive motors are respectively arranged on the plurality of rear wheel frames. When the sensor detects the direction sensing component, the control device also controls the plurality of rear drive motors to generate different speed outputs so that the plurality of rear drive wheels rotate with different speed differences.

3. The automatic meal delivery vehicle according to claim 1 or claim 2, characterized in that: A front limiting groove is arranged on the vehicle body, and the front limiting groove is just for the front wheel frame to extend and place, so as to limit the swing angle of the front wheel frame.

4. The automatic meal delivery vehicle according to claim 1 or claim 2, characterized in that: A rear limiting groove is arranged on the vehicle body, and the rear limiting groove is just for the rear wheel frame to extend and place, so as to limit the swing angle of the rear wheel frame.

5. The automatic meal delivery vehicle according to claim 2, characterized in that: The return sensing element on the track, and when the sensor senses the return sensing element, the control device controls the front drive motor and the rear drive motor to drive at the same speed.

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