Intelligent service robot based on Internet of Things technology

Abstract

The invention is suitable for the technical field of service robots, and provides an intelligent service robot based on the Internet of Things technology, the intelligent service robot comprises a movable base, an n-shaped frame is fixedly mounted on the movable base, two trays are arranged between two vertical plates of the n-shaped frame, buffer assemblies for buffering the trays are arranged between the trays and the n-shaped frame, compression grooves are formed in the trays, and the compression grooves are communicated with the n-shaped frame. A bearing plate is slidably connected into the compression groove, so that a dinner plate can be placed on the bearing plate, an edge protection assembly for blocking dinner bowls is arranged on the tray, a descending assembly is arranged at the bottom of the bearing plate, and a descending buffering assembly for buffering descending of the bearing plate is arranged in the compression groove. According to the service robot, the problem that the dinner plate slides out of the tray and is scattered when the service robot suddenly stops is avoided as much as possible, the safety and stability of the service robot during meal delivery are further guaranteed, meanwhile, the influence of scattering of the dinner plate on surrounding personnel is also avoided as much as possible, and the safety of the service robot is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of service robots, and more specifically, to an intelligent service robot based on Internet of Things technology. Background Art

[0002] Intelligent service robots can be roughly divided into industrial robots, commercial robots, and domestic robots. Compared with manual labor, robots have stronger execution capabilities and will not have low work efficiency due to physical exhaustion. They are suitable for industries with long operations and can replace human labor. The emergence of intelligent service machines has greatly promoted the improvement of productivity and living standards. Among them: commercial robots are widely used in room service robots and food delivery robots.

[0003] Most of the current commercial service robot research and development focuses on tracking navigation, environmental recognition and data collection and processing. The purpose of research and development is to ensure that the food delivery robot can accurately deliver the dishes to the customer's table, but ignores the design of the robot's external structure. Take the food delivery tray for example. Its design is a simple pallet. The assembly of the tray and the robot is a simple pin-rod connection or welding for fixation. In the process of transporting dishes, the robot will inevitably be bumpy due to factors such as the terrain of the robot's route and emergency stops when encountering people. Since the tray and the robot are directly rigidly connected, the dishes placed on the tray will easily slide out of the tray under the action of inertia, causing the dishes to spill, affecting the stability of the service robot when delivering food. At the same time, the spilled dishes are likely to affect the surrounding people, so it does not have good safety. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an intelligent service robot based on Internet of Things technology that can form a certain buffering effect on the tray, thereby avoiding the problem of the tray slipping out of the tray and spilling when the service robot makes an emergency stop, further ensuring the safety and stability of the service robot when delivering meals, while also avoiding the impact of spilling trays on surrounding people as much as possible, thereby ensuring the safety of the service robot.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent service robot based on Internet of Things technology comprises a mobile base, an n-shaped frame is fixedly mounted on the mobile base, two trays are arranged between two vertical plates of the n-shaped frame, a buffer component for buffering the trays is arranged between the trays and the n-shaped frame, a compression groove is opened on the tray, a bearing plate is slidably connected in the compression groove, so that a dining plate can be placed on the bearing plate, an edge protection component for blocking a dining bowl is arranged on the tray, a descending component is arranged at the bottom of the bearing plate, and a descending buffer component for buffering the descending of the bearing plate is arranged in the compression groove;

[0007] The buffer assembly includes two mounting slides, which are fixedly mounted on a side surface of the N-shaped frame vertical plate close to the tray. A buffer slide groove is provided on the surface of the tray close to the mounting slide groove. A buffer slide rod is fixedly connected between the inner walls on both sides of the opposite sides of the buffer slide groove. One side of the mounting slide extends into the buffer slide groove and is slidably mounted on the outer surface of the buffer slide rod. A buffer spring is fixedly connected between the mounting slide and the inner wall of the buffer slide groove, and the buffer spring is movably mounted on the outer surface of the buffer slide rod.

[0008] The present invention is further configured as follows: the descending assembly includes two descending rods, the two descending rods are fixedly mounted on the lower surface of the carrying plate, a built-in cavity is opened in the tray, the lower ends of the two descending rods slide through the built-in cavity, the lower ends of the two descending rods are fixedly connected with a descending pressure plate, a contraction cavity is opened in the tray, a clamping rod is provided in the contraction cavity, one end of the clamping rod slides through the built-in cavity, a clamping groove is opened on the surface of the descending pressure plate facing the clamping rod, and the clamping groove matches one end of the clamping rod located in the built-in cavity.

[0009] The present invention is further configured as follows: a built-in slide is fixedly connected to one end of the clamping rod located in the contraction cavity, the built-in slide slides in the contraction cavity, a tension spring is fixedly connected between the built-in slide and the inner wall of the contraction cavity, and the tension spring is movably sleeved on the outer surface of the clamping rod.

[0010] The present invention is further configured as follows: a pulling wire is fixedly connected to the surface of the built-in slide plate facing away from the clamping rod, and the other end of the pulling wire slides through the lower surface of the tray and is fixedly connected to the vertical plate of the n-type frame.

[0011] The present invention is further configured as follows: two rotating shafts are rotatably connected between the inner walls on both sides opposite to each other in the contraction chamber, the two rotating shafts are arranged on the upper and lower sides of the pulling line, two guide rollers are fixedly sleeved on the outer surfaces of the two rotating shafts, the two guide rollers limit the pulling line, and an extrusion slope is provided on the upper side of the lowering pressure plate close to the clamping rod.

[0012] The present invention is further configured as follows: the descent buffer assembly includes two foot-operated air pumps, both of which are fixedly mounted on the bottom wall of the compression groove, air bag grooves are provided on the front and rear inner walls of the compression groove, the bottom wall of the air bag groove is flush with the upper surface of the foot-operated air pump, a rubber plate is slidably connected in the air bag groove, a compressed air bag is fixedly connected between the rubber plate and the inner wall of the air bag groove, an air pipe for connecting inflation is provided between the compressed air bag and the foot-operated air pump, and the air pipe is embedded in the inner wall of the tray.

[0013] The present invention is further configured as follows: a plurality of compression rubber blocks are fixedly connected to the bottom wall of the compression groove.

[0014] The present invention is further configured as follows: two limiting slide grooves are provided on the upper and lower inner walls of the airbag groove, two connecting plates are fixedly connected to the surface of the rubber plate facing the compression airbag, two limiting sliders are slidably connected in the two limiting slide grooves, the two limiting sliders are respectively fixedly connected to the two connecting plates, and a return spring is fixedly connected between the limiting slider and the inner wall of the limiting slide groove.

[0015] The present invention is further configured as follows: the edge protection assembly includes two edge baffles, the two edge baffles are located on the front and rear sides of the compression groove, the lower sides of the two edge baffles slide into the built-in cavity, two rotating shafts are fixedly connected to the inner wall of the built-in cavity, the two rotating shafts are respectively located on the front and rear sides of the lower pressure plate, two levers are rotatably sleeved on the two rotating shafts, and the adjacent sides of the two levers are in contact with the lower surface of the lower pressure plate.

[0016] The present invention is further configured as follows: an insertion groove is provided on the lower side of the edge baffle, the lever extends into the insertion groove on the side away from the lower pressure plate, a push groove is provided on the inner wall on the opposite side of the insertion groove, a push rod is fixedly connected to the surface of the lever close to the push groove, and the other end of the push rod extends into the insertion groove and moves in the insertion groove.

[0017] The advantages of the present invention are:

[0018] First, the present invention can form a certain buffering effect on the tray, and try to avoid the problem of the food tray slipping out of the tray and causing spilling when the service robot makes an emergency stop, further ensuring the safety and stability of the service robot when delivering food, and also try to avoid the spilling of the food tray to affect the surrounding people, thereby ensuring the safety of the service robot.

[0019] Secondly, the present invention provides a descending component, so that when the service robot makes an emergency stop, the load plate and the meal tray automatically descend, thereby avoiding the problem of the meal tray sliding out of the tray due to large inertia as much as possible, and further ensuring the safety of the service robot when delivering meals.

[0020] Thirdly, the present invention can achieve the purpose of guiding and limiting the pulling wire by providing a guide roller, while also reducing the problem of wear of the pulling wire and ensuring the service life of the pulling wire.

[0021] Fourthly, the present invention is provided with a descent buffer component, so that the foot-operated air pump of the descent buffer component can form a certain buffering effect when the supporting plate falls, thereby slowing down the falling speed of the supporting plate. At the same time, the expanded compressed air bag can form a certain buffering effect on the dinner plate sliding on the supporting plate, thereby avoiding direct contact between the dinner plate and the inner wall of the compression groove as much as possible, thereby achieving the purpose of protecting the dinner plate and reducing the problem of food spilling on the dinner plate.

[0022] Fifth, the present invention is provided with structures such as a limiting slider and a connecting plate. When the rubber plate moves into the compression groove, the two connecting plates can form a supporting effect on the rubber plate, thereby avoiding the problem of the rubber plate tilting and falling as much as possible, and further ensuring the protective effect of the rubber plate on the dinner plate.

[0023] Sixth, the present invention is provided with an edge protection component, so that when an emergency stop occurs, the edge baffle plate can automatically extend out of the tray. The extended edge baffle plate can form a blocking effect on deeper bowls, further improving the safety of the service robot when delivering meals.

[0024] Seventh, the present invention can control the reset of the descending assembly, the edge protection assembly and the descending buffer assembly by only pressing the extended edge baffle, which can be recycled and all the structures can be reset in one step, which reduces the workload of the staff and improves the use effect of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of an intelligent service robot based on Internet of Things technology of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the pallet of the present invention;

[0027] Figure 3 It is a partial cross-sectional schematic diagram of the tray of the present invention;

[0028] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0029] Figure 5 is a side plan view of the tray of the present invention;

[0030] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0031] In the figure: 1, mobile base; 2, n-type frame; 3, tray; 4, buffer assembly; 401, mounting slide; 402, buffer slide; 403, buffer slide bar; 404, buffer spring;

[0032] 5. Compression groove; 6. Loading plate; 7. Edge protection assembly; 701. Edge baffle; 702. Rotating shaft; 703. Lever; 704. Insertion slot; 705. Pushing slot; 706. Pushing rod;

[0033] 8. Descending assembly; 801. Descending rod; 802. Built-in cavity; 803. Descending pressure plate; 804. Contraction cavity; 805. Clamping rod; 806. Clamping groove; 807. Extrusion slope; 808. Built-in slide plate; 809. Tension spring; 810. Pull wire; 811. Rotating shaft; 812. Guide roller;

[0034] 9. Descending buffer assembly; 901. Foot-operated air pump; 902. Airbag slot; 903. Compressed airbag; 904. Rubber sheet; 905. Air pipe; 906. Limiting slideway; 907. Connecting plate; 908. Limiting slider; 909. Return spring;

[0035] 10. Compress the rubber block. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0038] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0039] Embodiment 1

[0040] See also Figure 1-2 The present invention provides the following technical solutions: specifically, it refers to an intelligent service robot based on Internet of Things technology, comprising a mobile base 1, an n-type frame 2 is fixedly installed on the mobile base 1, two trays 3 are arranged between two vertical plates of the n-type frame 2, a buffer component 4 for buffering the tray 3 is arranged between the tray 3 and the n-type frame 2, a compression groove 5 is opened on the tray 3, a carrying plate 6 is slidably connected in the compression groove 5, so that the dinner plate can be placed on the carrying plate 6, an edge protection component 7 for blocking the dinner bowl is arranged on the tray 3, a descending component 8 is arranged at the bottom of the carrying plate 6, and a descending buffer component 9 for buffering the descending of the carrying plate 6 is arranged in the compression groove 5.

[0041] Specifically, the buffer assembly 4 includes two mounting slides 401, and the mounting slide 401 is fixedly mounted on a side surface of the vertical plate of the n-type frame 2 close to the tray 3. A buffer groove 402 is provided on the surface of the tray 3 close to the mounting slide 401. A buffer slide rod 403 is fixedly connected between the inner walls on both sides of the opposite sides of the buffer groove 402. One side of the mounting slide 401 extends into the buffer groove 402 and is slidably mounted on the outer surface of the buffer slide rod 403. A buffer spring 404 is fixedly connected between the mounting slide 401 and the inner wall of the buffer groove 402, and the buffer spring 404 is movably mounted on the outer surface of the buffer slide rod 403.

[0042] When the intelligent service robot makes an emergency stop during meal delivery, the tray 3 will rush forward a certain distance under the action of inertia, and the slider 401 will be installed to slide on the buffer slide bar 403 and squeeze the buffer spring 404, so that the buffer spring 404 is stressed and contracts, thereby forming a certain buffering effect on the tray 3. At the same time, when the tray 3 is displaced, the descending component 8 controls the entire supporting plate 6 to descend, and the edge anti-drop component 7 pushes out the obstruction to block the meal plate on the supporting plate 6, thereby avoiding the problem of the meal plate slipping out of the tray 3 and causing spillage when the service robot makes an emergency stop, further ensuring the safety and stability of the service robot when delivering meals, while also avoiding the impact of spillage of the meal plate on the surrounding personnel as much as possible, thereby ensuring the safety of the service robot.

[0043] Embodiment 2

[0044] Please refer to 3-4. Specifically, the descending assembly 8 includes two descending rods 801, and the two descending rods 801 are fixedly installed on the lower surface of the supporting plate 6. A built-in cavity 802 is opened in the tray 3. The lower ends of the two descending rods 801 slide into the built-in cavity 802. The lower ends of the two descending rods 801 are fixedly connected with a descending pressure plate 803. A retraction cavity 804 is opened in the tray 3. A clamping rod 805 is provided in the retraction cavity 804. One end of the clamping rod 805 slides into the built-in cavity 802. A clamping groove 806 is opened on the surface of the descending pressure plate 803 facing the clamping rod 805. The clamping groove 806 is consistent with one end of the clamping rod 805 located in the built-in cavity 802.

[0045] When one end of the clamping rod 805 located in the built-in cavity 802 is inserted into the clamping groove 806, the clamping rod 805 forms a limiting effect on the lower pressure plate 803, so that the supporting plate 6 cannot fall. Therefore, when the dinner plate is placed on the supporting plate 6, the problem of the supporting plate 6 falling will not occur, thereby ensuring the stability of the dinner plate when it is placed.

[0046] Specifically, the clamping rod 805 is located at one end of the shrinkage cavity 804 and is fixedly connected to a built-in slide 808. The built-in slide 808 slides in the shrinkage cavity 804. A tension spring 809 is fixedly connected between the built-in slide 808 and the inner wall of the shrinkage cavity 804. The tension spring 809 is movably mounted on the outer surface of the clamping rod 805. When the tension spring 809 is not affected by the tension force, the tension spring 809 will pull the built-in slide 808, so that the initial position of the clamping rod 805 is that one end extends into the built-in cavity 802.

[0047] Specifically, a pulling wire 810 is fixedly connected to the surface of the built-in slide 808 facing away from the clamping rod 805, and the other end of the pulling wire 810 slides through the lower surface of the tray 3 and is fixedly connected to the vertical plate of the n-shaped frame 2. In this way, when the service robot stops suddenly and the tray 3 is displaced, the pulling wire 810 will form a pulling force on the built-in slide 808, so that the built-in slide 808 is displaced in the contraction cavity 804 to the side away from the built-in cavity 802, thereby pulling the clamping rod 805 out of the clamping groove 806, and at the same time, the tension spring 809 is stressed and stretched, so that the clamping rod 805 cannot form a restriction on the descending pressure plate 803. In this way, the supporting plate 6 and the descending pressure plate 803 are displaced downward under the action of inertia, and the dinner plate on the supporting plate 6 is also moved downward, which tries to avoid the problem of the dinner plate sliding out of the tray 3 due to large inertia, and further ensures the safety of the service robot when delivering meals.

[0048] In this solution, a section of the pulling wire 810 that passes through the tray 3 has a certain redundancy, so that the section of the pulling wire 810 between the lower surface of the tray 3 and the n-type frame 2 is not in a taut state, thereby minimizing the problem of the support plate 6 falling due to a slight displacement of the tray 3.

[0049] Specifically, two rotating shafts 811 are rotatably connected between the inner walls on both sides of the opposite sides of the contraction cavity 804. The two rotating shafts 811 are arranged on the upper and lower sides of the pulling line 810. Two guide rollers 812 are fixedly sleeved on the outer surfaces of the two rotating shafts 811. The two guide rollers 812 limit the pulling line 810. The above structure can achieve the purpose of guiding and limiting the pulling line 810, while also reducing the problem of wear of the pulling line 810 and ensuring the service life of the pulling line 810.

[0050] Specifically, an extrusion slope 807 is provided on the upper side of the lowering pressure plate 803 near the clamping rod 805, so that when the supporting plate 6 moves upward, the extrusion slope 807 of the lowering pressure plate 803 contacts the clamping rod 805 and squeezes the clamping rod 805, so that the clamping rod 805 shrinks into the shrinkage cavity 804. When the supporting plate 6 moves up to the top, the clamping rod 805 and the clamping groove 806 are at the same horizontal position, so that the clamping rod 805 is pulled into the clamping groove 806 by the tension spring 809, thereby fixing the lowering pressure plate 803 again.

[0051] Embodiment 3

[0052] See also Figure 5-6 Specifically, the descent buffer assembly 9 includes two foot-operated air pumps 901, and the two foot-operated air pumps 901 are fixedly mounted on the bottom wall of the compression groove 5. Airbag grooves 902 are provided on the inner walls on both sides of the front and rear of the compression groove 5. The bottom wall of the airbag groove 902 is flush with the upper surface of the foot-operated air pump 901. A rubber plate 904 is slidably connected in the airbag groove 902. A compressed airbag 903 is fixedly connected between the rubber plate 904 and the inner wall of the airbag groove 902. An air pipe 905 for connecting inflation is provided between the compressed airbag 903 and the foot-operated air pump 901, and the air pipe 905 is embedded in the inner wall of the tray 3.

[0053] When the supporting plate 6 moves downward under the action of inertia, the supporting plate 6 contacts the top surface of the foot-operated air pump 901 and squeezes the foot-operated air pump 901. Since a dinner plate is placed on the supporting plate 6, the weight of the supporting plate 6 is heavier, so the foot-operated air pump 901 is compressed, and the gas of the foot-operated air pump 901 is transported to the compressed air bag 903 through the air pipe 905, so that the compressed air bag 903 expands, so that the compressed air bag 903 pushes the rubber sheet 904 out. With the above structure, the foot-operated air pump 901 can form a certain buffering effect when the supporting plate 6 falls, slowing down the falling speed of the supporting plate 6. At the same time, the expanded compressed air bag 903 can form a certain buffering effect on the dinner plate sliding on the supporting plate 6, and try to avoid the dinner plate directly contacting the inner wall of the compression groove 5, so as to achieve the purpose of protecting the dinner plate and reduce the problem of food spilling on the dinner plate.

[0054] Since the bottom wall of the airbag groove 902 is flush with the upper surface of the foot-operated air pump 901, when the gas in the foot-operated air pump 901 is transported to the compressed airbag 903 and expands the compressed airbag 903, the lowered position of the supporting plate 6 is already lower than the airbag groove 902. Therefore, there will be no problem that the supporting plate 6 blocks the rubber sheet 904, causing the rubber sheet 904 to be unable to be pushed out.

[0055] Specifically, a plurality of compression rubber blocks 10 are fixedly connected to the bottom wall of the compression groove 5, so that when the supporting plate 6 falls, the compression rubber blocks 10 form a final buffering effect on the supporting plate 6. The above-mentioned multi-stage buffering structure ensures the buffering effect of the falling of the supporting plate 6.

[0056] Specifically, two limiting grooves 906 are provided on the upper and lower inner walls of the airbag groove 902, and two connecting plates 907 are fixedly connected to the surface of the rubber plate 904 facing the compression airbag 903. Two limiting sliders 908 are slidably connected in the two limiting grooves 906. The two limiting sliders 908 are respectively fixedly connected to the two connecting plates 907, and a return spring 909 is fixedly connected between the limiting slider 908 and the inner wall of the limiting groove 906.

[0057] Therefore, when the rubber plate 904 moves into the compression groove 5, the two connecting plates 907 can form a supporting effect on the rubber plate 904, thereby avoiding the problem of the rubber plate 904 tilting and falling as much as possible, and further ensuring the protective effect of the rubber plate 904 on the dinner plate.

[0058] Embodiment 4

[0059] See also Figure 5 Specifically, the edge protection assembly 7 includes two edge baffles 701, which are located at the front and rear sides of the compression groove 5, and the lower sides of the two edge baffles 701 are slidably penetrated into the built-in cavity 802. Two rotating shafts 702 are fixedly connected to the inner wall of the built-in cavity 802. The two rotating shafts 702 are respectively located at the front and rear sides of the descending pressure plate 803. Two levers 703 are rotatably sleeved on the two rotating shafts 702. The adjacent sides of the two levers 703 are in contact with the lower surface of the descending pressure plate 803. An insertion groove 704 is provided on the lower side of the edge baffle 701. The side of the lever 703 away from the descending pressure plate 803 extends into the insertion groove 704. A pushing groove 705 is provided on the inner wall on the opposite side of the insertion groove 704. A pushing rod 706 is fixedly connected to the surface of the lever 703 close to the pushing groove 705. The other end of the pushing rod 706 extends into the insertion groove 704 and moves in the insertion groove 704.

[0060] When the lowering pressure plate 803 moves downward, the lowering pressure plate 803 will form a downward pressure on one end of the lever 703, so that the lever 703 rotates with the rotating shaft 702 as the rotation point, so that the other end of the lever 703 will form a thrust on the edge baffle 701, thereby pushing the edge baffle 701 out of the tray 3, and at the same time the pushing rod 706 slides in the pushing groove 705, so that the extended edge baffle 701 can form a blocking effect on deeper bowls, further improving the safety of the service robot when delivering meals.

[0061] Since the lowering pressure plate 803 loses its restriction, the lowering pressure plate 803 continues to apply pressure to the lever 703, so that the edge baffle 701 is always in an extended state. When it is necessary to reset the supporting plate 6, the staff only needs to press the protruding edge baffle 701, so that the edge baffle 701 moves downward, and the lever 703 forms a thrust on the lowering pressure plate 803, so that the lowering pressure plate 803 moves upward, and the supporting plate 6 moves upward at the same time. At this time, the supporting plate 6 no longer squeezes the foot-operated air pump 901, and the foot-operated air pump 901 resets and extracts the air in the compressed air bag 903. The reset spring 909 resets and drives the rubber plate 904 to move into the air bag groove 902 until the clamping rod 805 fixes the lowering pressure plate 803 again, thereby completing the reset of the supporting plate 6. The above structure can be fully utilized, and all the structures can be reset in one step, which reduces the workload of the staff and improves the use effect of the mechanism.

[0062] The working principle of the intelligent service robot based on Internet of Things technology provided by the present invention is as follows:

[0063] The first step is that when the intelligent service robot stops suddenly during meal delivery, the tray 3 will rush forward for a distance under the action of inertia, and at the same time, the installation slider 401 slides on the buffer slide bar 403 and squeezes the buffer spring 404, so that the buffer spring 404 is stressed and contracts, thereby forming a certain buffering effect on the tray 3;

[0064] In the second step, the pulling line 810 will form a pulling force on the built-in slide plate 808, so that the built-in slide plate 808 moves in the contraction cavity 804 to the side away from the built-in cavity 802, thereby pulling the clamping rod 805 out of the clamping groove 806, and at the same time the tension spring 809 is stressed and stretched, so that the clamping rod 805 cannot form a restriction on the descending pressure plate 803, so that the supporting plate 6 and the descending pressure plate 803 move downward under the action of inertia, and the dining plate on the supporting plate 6 also moves downward;

[0065] Step 3: When the carrier plate 6 moves downward under the action of inertia, the carrier plate 6 contacts the top surface of the foot-operated air pump 901 and squeezes the foot-operated air pump 901. Since the dining plate is placed on the carrier plate 6, the carrier plate 6 is heavy, so the foot-operated air pump 901 is compressed, and the gas of the foot-operated air pump 901 is transported to the compressed air bag 903 through the air pipe 905, so that the compressed air bag 903 expands, so that the compressed air bag 903 pushes the rubber sheet 904 out;

[0066] Step 4: When the lowering pressure plate 803 moves downward, the lowering pressure plate 803 will exert downward pressure on one end of the lever 703, so that the lever 703 rotates with the rotating shaft 702 as the rotation point, so that the other end of the lever 703 exerts a thrust on the edge baffle 701, thereby pushing the edge baffle 701 out of the tray 3, and the pushing rod 706 slides in the pushing groove 705, so that the extended edge baffle 701 can form a blocking effect for the deeper bowls;

[0067] Step 5. When it is necessary to reset the supporting plate 6, the staff only needs to press the protruding edge baffle 701, so that the edge baffle 701 moves downward, and the lever 703 forms a thrust on the lowering pressure plate 803, so that the lowering pressure plate 803 moves upward, and the supporting plate 6 moves upward at the same time. At this time, the supporting plate 6 no longer squeezes the foot-operated air pump 901, and the foot-operated air pump 901 resets and extracts the air in the compressed air bag 903, and the reset spring 909 resets and drives the rubber plate 904 to move into the air bag groove 902 until the clamping rod 805 fixes the lowering pressure plate 803 again, thereby completing the reset of the supporting plate 6.

[0068] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0069] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0070] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent service robot based on Internet of Things technology, comprising a mobile base (1), an n-shaped frame (2) fixedly mounted on the mobile base (1), two trays (3) arranged between two vertical plates of the n-shaped frame (2), characterized in that: A buffer component (4) for buffering the tray (3) is provided between the tray (3) and the n-shaped frame (2); a compression groove (5) is provided on the tray (3); a bearing plate (6) is slidably connected in the compression groove (5); thus, a dining plate can be placed on the bearing plate (6); an edge protection component (7) for blocking a dining bowl is provided on the tray (3); a descending component (8) is provided at the bottom of the bearing plate (6); and a descending buffer component (9) for buffering the descending of the bearing plate (6) is provided in the compression groove (5); The buffer assembly (4) includes two mounting slide blocks (401), wherein the mounting slide blocks (401) are fixedly mounted on a side surface of a vertical plate of the n-shaped frame (2) close to the tray (3), a buffer slide groove (402) is provided on the surface of the tray (3) close to the mounting slide block (401), a buffer slide bar (403) is fixedly connected between the inner walls on both sides opposite to each other of the buffer slide groove (402), one side of the mounting slide block (401) extends into the buffer slide groove (402) and is slidably mounted on the outer surface of the buffer slide bar (403), a buffer spring (404) is fixedly connected between the mounting slide block (401) and the inner wall of the buffer slide groove (402), and the buffer spring (404) is movably mounted on the outer surface of the buffer slide bar (403).

2. The intelligent service robot based on Internet of Things technology according to claim 1, characterized in that: The descending assembly (8) comprises two descending rods (801), both of which are fixedly mounted on the lower surface of the carrying plate (6); a built-in cavity (802) is provided in the tray (3); the lower ends of the two descending rods (801) slide through the built-in cavity (802); the lower ends of the two descending rods (801) are fixedly connected with a descending pressure plate (803); a contraction cavity (804) is provided in the tray (3); a clamping rod (805) is provided in the contraction cavity (804); one end of the clamping rod (805) slides through the built-in cavity (802); a clamping groove (806) is provided on the surface of the descending pressure plate (803) facing the clamping rod (805); the clamping groove (806) matches one end of the clamping rod (805) located in the built-in cavity (802).

3. The intelligent service robot based on Internet of Things technology according to claim 2, characterized in that: The clamping rod (805) is fixedly connected to one end of the contraction cavity (804) with a built-in slide plate (808), and the built-in slide plate (808) slides in the contraction cavity (804). A tension spring (809) is fixedly connected between the built-in slide plate (808) and the inner wall of the contraction cavity (804), and the tension spring (809) is movably sleeved on the outer surface of the clamping rod (805).

4. The intelligent service robot based on Internet of Things technology according to claim 3 is characterized in that: A pulling wire (810) is fixedly connected to the surface of the built-in slide plate (808) facing away from the clamping rod (805), and the other end of the pulling wire (810) slides through the lower surface of the tray (3) and is fixedly connected to the vertical plate of the n-shaped frame (2).

5. The intelligent service robot based on Internet of Things technology according to claim 4, characterized in that: Two rotating shafts (811) are rotatably connected between the inner walls on both sides of the contraction chamber (804), and the two rotating shafts (811) are arranged on the upper and lower sides of the pulling line (810). Two guide rollers (812) are fixedly sleeved on the outer surfaces of the two rotating shafts (811), and the two guide rollers (812) limit the pulling line (810). An extrusion inclined surface (807) is provided on the upper side of the lowering pressure plate (803) close to the clamping rod (805).

6. The intelligent service robot based on Internet of Things technology according to claim 5, characterized in that: The descending buffer assembly (9) comprises two foot-operated air pumps (901), both of which are fixedly mounted on the bottom wall of the compression groove (5), and air bag grooves (902) are provided on the inner walls on both sides of the front and rear of the compression groove (5), and the bottom wall of the air bag groove (902) is flush with the upper surface of the foot-operated air pump (901), and a rubber plate (904) is slidably connected in the air bag groove (902), and a compressed air bag (903) is fixedly connected between the rubber plate (904) and the inner wall of the air bag groove (902), and an air pipe (905) for connecting and inflating is provided between the compressed air bag (903) and the foot-operated air pump (901), and the air pipe (905) is embedded in the inner wall of the tray (3).

7. The intelligent service robot based on Internet of Things technology according to claim 6, characterized in that: A plurality of compression rubber blocks (10) are fixedly connected to the bottom wall of the compression groove (5).

8. The intelligent service robot based on Internet of Things technology according to claim 6, characterized in that: Two limiting grooves (906) are provided on the inner walls on the upper and lower sides of the airbag groove (902); two connecting plates (907) are fixedly connected to the surface of the rubber plate (904) facing the compression airbag (903); two limiting sliders (908) are slidably connected in the two limiting grooves (906); the two limiting sliders (908) are fixedly connected to the two connecting plates (907) respectively; and a return spring (909) is fixedly connected between the limiting slider (908) and the inner wall of the limiting groove (906).

9. The intelligent service robot based on Internet of Things technology according to claim 8, characterized in that: The edge protection assembly (7) comprises two edge baffles (701), the two edge baffles (701) are located at the front and rear sides of the compression groove (5), the lower sides of the two edge baffles (701) are slidably penetrated into the built-in cavity (802), two rotating shafts (702) are fixedly connected to the inner wall of the built-in cavity (802), the two rotating shafts (702) are respectively located at the front and rear sides of the descending pressure plate (803), two levers (703) are rotatably sleeved on the two rotating shafts (702), and the adjacent sides of the two levers (703) are in contact with the lower surface of the descending pressure plate (803).

10. The intelligent service robot based on Internet of Things technology according to claim 9, characterized in that: An insertion groove (704) is provided on the lower side of the edge baffle (701), and the lever (703) extends into the insertion groove (704) on the side away from the lower pressure plate (803). A push groove (705) is provided on the inner wall on the opposite side of the insertion groove (704). A push rod (706) is fixedly connected to the surface of the lever (703) close to the push groove (705), and the other end of the push rod (706) extends into the insertion groove (704) and moves in the insertion groove (704).

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