Contour scanning type laser navigation unmanned trolley for intelligent logistics

Abstract

The contour scanning type laser navigation unmanned trolley for intelligent logistics comprises a trolley body, laser navigation radars are arranged on the periphery of the trolley body, two pairs of bases are symmetrically and fixedly connected to the two sides of the upper end of the trolley body, and a sliding rail rod is fixedly connected between each pair of bases; a first sleeve and a second sleeve are symmetrically connected to the sliding rail rod in a sliding mode, a bearing plate is installed at the upper end of the base through a damping mechanism, and stability maintaining mechanisms used for stabilizing goods are installed on the two sides of the upper end of the bearing plate. Through the unique damping and stability maintaining mechanism design, the device can be tightly attached to goods, goods displacement and collision in the transportation process are prevented, goods safety is comprehensively guaranteed, goods damage caused by vibration and shaking is avoided, goods completeness is guaranteed, the heat dissipation problem when the contour scanning unit works is effectively solved, the service life of the device is remarkably prolonged, and the production efficiency is improved. Electronic components are prevented from being damaged by high temperature, and stable operation of equipment is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent logistics vehicles, and in particular to a contour scanning laser navigation unmanned vehicle for intelligent logistics. Background Art

[0002] At present, the contour scanning laser navigation unmanned vehicles used in intelligent logistics do not have the function of self-contour perception. When the shape of the transported goods exceeds the contour size of the vehicle body, it is impossible to perceive its own actual spatial dimensions in the transportation scenario and adjust the vehicle's operation path information according to the actual spatial dimensions, which may cause the goods to collide with obstacles within the path during operation, causing damage to the goods.

[0003] In response to the above problems, the Chinese patent with the patent number "CN113548406A" proposes a contour scanning laser navigation unmanned vehicle for intelligent logistics, including a vehicle body, and the front, back, left and right four directions of the vehicle body are all provided with laser navigation radars; the bottom of the vehicle body is provided with four contour scanning units corresponding to the front, back, left and right four directions of the vehicle body. Its main invention is to detect the actual contour size of the vehicle body in the transport state by setting contour scanning units in the front, back, left and right four directions of the bottom of the vehicle body, so as to ensure that the goods will not collide with obstacles during the transportation process, and the transportation is safer and more reliable. However, in this scheme, the vehicle is not designed to absorb shock. When the vehicle encounters bumpy roads during the journey, it is easy to cause certain bumps and damage to the more fragile goods; at the same time, the contour scanning unit will generate a high temperature during operation. This scheme does not have a cooling design for it, which is easy to cause abnormal temperature rise of heat accumulation in the contour scanning unit, resulting in damage to electronic components and reduced lifespan. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a contour scanning laser navigation unmanned vehicle for intelligent logistics.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A contour scanning laser navigation unmanned vehicle for intelligent logistics comprises a vehicle body, wherein laser navigation radars are arranged around the vehicle body, two pairs of bases are symmetrically fixedly connected on both sides of the upper end of the vehicle body, a slide rail rod is fixedly connected between each pair of the bases, a first sleeve and a second sleeve are symmetrically slidably connected on the slide rail rod, a bearing plate is installed on the upper end of the base through a shock absorbing mechanism, a stabilization mechanism for stabilizing goods is installed on both sides of the upper end of the bearing plate, a first piston box is fixedly connected to the vehicle body through a fixing rod, a control mechanism for controlling the action of the stabilization mechanism is installed on the first piston box, a rectangular groove is opened at the bottom of the vehicle body, a cooling mechanism for reducing the temperature of the contour scanning unit when working is installed in the rectangular groove, a liquid storage tank is fixedly installed in the middle of the upper end of the vehicle body and is fixedly connected to the second piston box through a fixing rod, a pumping mechanism for pumping coolant into the cooling mechanism is installed in the second piston box, and a reflux mechanism for returning the coolant of the cooling mechanism to the liquid storage tank is installed on the liquid storage tank.

[0006] Preferably, the shock absorbing mechanism includes a shock absorbing spring, a spring locating pin, a connecting plate, a first connecting rod and a second connecting rod. Two pairs of the connecting plates are symmetrically fixedly connected at the four corners of the lower end of the supporting plate. The four shock absorbing springs are elastically connected between the connecting plates and the bases at corresponding positions. The spring locating pin is fixed at the lower end of the connecting plate and is covered by the shock absorbing spring. The two ends of the first connecting rod are respectively rotatably connected to the second sleeve and the side wall of the connecting plate. The second connecting rod is respectively rotatably connected to the first sleeve and the side wall of the connecting plate.

[0007] Preferably, the stabilization mechanism includes a baffle and an elastic airbag, a pair of the baffles are symmetrically fixedly connected to the upper end of the bearing plate, and a pair of the elastic airbags are respectively fixedly connected to a pair of baffles.

[0008] Preferably, the control mechanism includes a pneumatic piston, an air intake pipe, an air supply pipe and a pressure valve. The pneumatic piston is sealingly and slidingly connected between the inner wall of the first piston box, the air intake pipe is connected between the first piston box and the outside world, a pair of the air supply pipes are connected between the first piston box and a pair of the elastic airbags, the pressure valve is installed on a pair of the elastic airbags, and the pneumatic piston is fixedly connected to the first sleeve through a first connecting piece.

[0009] Preferably, a one-way valve is installed in the air inlet pipe, which only allows air to flow from the outside to the first piston box, and a one-way valve is installed in the air delivery pipe, which only allows air to flow from the first piston box to the elastic airbag.

[0010] Preferably, the cooling mechanism comprises a serpentine cooling pipe, which is fixedly connected in the rectangular groove and has openings at both ends extending to the outside of the side wall of the vehicle body.

[0011] Preferably, the liquid pumping mechanism includes a hydraulic piston, a liquid inlet pipe and a liquid infusion pipe. The hydraulic piston is sealingly and slidingly connected between the inner walls of the second piston box, the liquid inlet pipe is connected between the first piston box and the liquid storage tank, the liquid infusion pipe is connected between the first piston box and the liquid inlet end of the serpentine cooling tube, and the hydraulic piston is fixedly connected to the second sleeve through a second connecting piece.

[0012] Preferably, the reflux mechanism comprises a reflux pipe, which is connected between the serpentine cooling pipe and the liquid storage tank, and a one-way valve is installed in the reflux pipe to allow the coolant to flow from the serpentine cooling pipe to the liquid storage tank.

[0013] Preferably, a one-way valve is installed in the liquid inlet pipe, which only allows the coolant to flow from the liquid storage tank to the second piston box, and a one-way valve is installed in the liquid delivery pipe, which allows the coolant to flow from the second piston box to the serpentine cooling pipe.

[0014] The present invention has the following beneficial effects: 1. The present invention greatly improves the safety and stability of cargo transportation through a unique shock-absorbing and stabilizing mechanism design. In the shock-absorbing mechanism, the shock-absorbing spring, spring locating pin, connecting plate and connecting rod work together to effectively buffer the vibration caused by bumpy roads and reduce the risk of cargo damage. The baffle and elastic airbag of the stabilizing mechanism can fit the cargo tightly to prevent displacement and collision of cargo during transportation, thereby ensuring the safety of cargo in all directions, avoiding damage to cargo caused by vibration and shaking, and ensuring the integrity of the cargo.

[0015] 2. The present invention effectively solves the heat dissipation problem of the contour scanning unit when it is working through an innovative cooling system design, which significantly extends the service life of the equipment. The serpentine cooling tube is installed in the rectangular groove at the bottom of the vehicle body, and cooperates with the pump liquid and reflux mechanism to realize the circulation of the coolant. The coolant enters the serpentine cooling tube from the liquid storage tank through the liquid inlet pipe, the second piston box, and the infusion tube to absorb heat, and then returns to the liquid storage tank through the reflux pipe. The one-way valve ensures the one-way and stable flow of the coolant, avoids heat accumulation in the contour scanning unit, prevents electronic components from being damaged due to high temperature, and ensures stable operation of the equipment.

[0016] 3. The present invention realizes accurate and convenient control of the stabilization mechanism through the ingenious design of the control mechanism, improves the efficiency and intelligence level of logistics transportation, and the pneumatic piston, air intake pipe, air supply pipe and pressure valve and other components work together. The one-way valves in the air intake pipe and the air supply pipe ensure the one-way flow of gas. The pressure valve stabilizes the pressure of the elastic airbag. The first sleeve is driven to slide under the action of the shock absorbing mechanism by using external bumps as power, thereby driving the pneumatic piston to slide back and forth, so that the elastic airbag can be quickly and accurately inflated to fix the goods. The operation is simple and efficient, which promotes logistics automation and improves the overall intelligence level. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the front structure of a contour scanning laser navigation unmanned vehicle for intelligent logistics proposed by the present invention; Figure 2 This is a schematic diagram of the back structure of a contour scanning laser navigation unmanned vehicle for intelligent logistics proposed by the present invention; Figure 3 This is a bottom view of a contour scanning laser navigation unmanned vehicle for intelligent logistics proposed by the present invention; Figure 4 This is a schematic diagram of the connection between the stabilization mechanism and the control mechanism proposed in the present invention; Figure 5 This is a schematic diagram of the connection between the liquid pumping mechanism and the temperature reduction mechanism proposed in the present invention.

[0018] In the figure: 1. vehicle body; 2. laser navigation radar; 3. base; 4. shock-absorbing spring; 5. connecting plate; 6. bearing plate; 7. spring positioning pin; 8. slide rail rod; 9. first sleeve; 10. second sleeve; 11. first connecting rod; 12. baffle; 13. elastic airbag; 14. second connecting rod; 15. first piston box; 16. first connecting piece; 17. air pipe; 18. pressure valve; 19. second piston box; 20. second connecting piece; 21. liquid inlet pipe; 22. reflux pipe; 23. air inlet pipe; 24. liquid infusion pipe; 25. liquid storage tank; 26. rectangular groove; 27. serpentine cooling pipe. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-5 A contour scanning laser navigation unmanned vehicle for intelligent logistics includes a vehicle body 1, a laser navigation radar 2 is arranged around the vehicle body 1, two pairs of bases 3 are symmetrically fixedly connected on both sides of the upper end of the vehicle body 1, a slide rail rod 8 is fixedly connected between each pair of bases 3, and a first sleeve 9 and a second sleeve 10 are symmetrically slidably connected on the slide rail rod 8.

[0021] A supporting plate 6 is installed on the upper end of the base 3 through a shock-absorbing mechanism. The shock-absorbing mechanism includes a shock-absorbing spring 4, a spring locating pin 7, a connecting plate 5, a first connecting rod 11 and a second connecting rod 14. Two pairs of connecting plates 5 are symmetrically fixedly connected to the four corners of the lower end of the supporting plate 6. Four shock-absorbing springs 4 are elastically connected between the connecting plates 5 and the base 3 at corresponding positions. The spring locating pin 7 is fixed to the lower end of the connecting plate 5 and is covered by the shock-absorbing spring 4. Both ends of the first connecting rod 11 are rotatably connected to the second sleeve 10 and the side wall of the connecting plate 5 respectively. The second connecting rod 14 is rotatably connected to the first sleeve 9 and the side wall of the connecting plate 5 respectively.

[0022] Stabilizing mechanisms for stabilizing goods are installed on both sides of the upper end of the load-bearing plate 6. The stabilizing mechanisms include baffles 12 and elastic airbags 13. A pair of baffles 12 are symmetrically fixedly connected to the upper end of the load-bearing plate 6, and a pair of elastic airbags 13 are fixedly connected to the pair of baffles 12 respectively.

[0023] A first piston box 15 is fixedly connected to the vehicle body 1 through a fixing rod, and a control mechanism for controlling the action of the stabilization mechanism is installed on the first piston box 15. The control mechanism includes a pneumatic piston, an air intake pipe 23, an air supply pipe 17 and a pressure valve 18. The pneumatic piston is sealingly and slidingly connected between the inner walls of the first piston box 15, the air intake pipe 23 is connected between the first piston box 15 and the outside world, a pair of air supply pipes 17 are connected between the first piston box 15 and a pair of elastic airbags 13, the pressure valve 18 is installed on a pair of elastic airbags 13, and the pneumatic piston is fixedly connected to the first sleeve 9 through a first connecting piece 16.

[0024] A one-way valve is installed in the air inlet pipe 23 to allow air to flow from the outside to the first piston box 15 , and a one-way valve is installed in the air delivery pipe 17 to allow air to flow from the first piston box 15 to the elastic airbag 13 .

[0025] A rectangular groove 26 is provided at the bottom of the vehicle body 1, and four contour scanning units and their corresponding structures as proposed in the patent with patent number "CN113548406A" are installed in the rectangular groove 26. A cooling mechanism for reducing the temperature of the contour scanning unit during operation is installed in the rectangular groove 26. The cooling mechanism includes a serpentine cooling tube 27, which is fixedly connected in the rectangular groove 26 and has openings at both ends extending to the outside of the side walls of the vehicle body 1 respectively.

[0026] A liquid storage tank 25 is fixedly installed in the middle of the upper end of the vehicle body 1 and is fixedly connected to the second piston box 15 through a fixing rod. A pumping mechanism for pumping coolant into the cooling mechanism is installed in the second piston box 15. The pumping mechanism includes a hydraulic piston, a liquid inlet pipe 21 and a liquid infusion pipe 24. The hydraulic piston is sealingly and slidably connected between the inner wall of the second piston box 19. The liquid inlet pipe 21 is connected between the first piston box 19 and the liquid storage tank 25. The liquid infusion pipe 24 is connected between the first piston box 19 and the liquid inlet end of the serpentine cooling pipe 27. The hydraulic piston is fixedly connected to the second sleeve 10 through a second connecting piece 20.

[0027] A reflux mechanism is installed on the liquid storage tank 25 for returning the coolant of the cooling mechanism to the liquid storage tank 25. The reflux mechanism includes a reflux pipe 21. The reflux pipe 21 is connected between the serpentine cooling pipe 27 and the liquid storage tank 25, and a one-way valve is installed in the reflux pipe 21 to allow the coolant to flow from the serpentine cooling pipe 27 to the liquid storage tank 25.

[0028] A one-way valve is installed in the liquid inlet pipe 21 to allow only the coolant to flow from the liquid storage tank 25 to the second piston box 19 , and a one-way valve is installed in the liquid delivery pipe 24 to allow the coolant to flow from the second piston box 19 to the serpentine cooling pipe 27 .

[0029] In the present invention, when it is necessary to carry goods, the goods are placed on the load-bearing plate 6. During the driving process of the trolley, if a bumpy road is encountered, the shock-absorbing mechanism begins to play a role. The connecting plate 5 symmetrically fixedly connected at the four corners of the lower end of the load-bearing plate 6 is elastically connected to the base 3 at the corresponding position through four shock-absorbing springs 4. The spring positioning pin 7 is fixed at the lower end of the connecting plate 5 and covered by the shock-absorbing spring 4, which plays the role of positioning and protecting the shock-absorbing spring 4. At the same time, the two ends of the first connecting rod 11 are respectively connected to the second sleeve 10 and the side wall of the connecting plate 5 for rotation, and the second connecting rod 14 is respectively connected to the first sleeve 9 and the side wall of the connecting plate 5 for rotation. When the vehicle body 1 vibrates due to bumps, the shock-absorbing spring 4 undergoes elastic deformation to absorb and buffer the vibration energy. At the same time, the first connecting rod 11 and the second connecting rod 14 will slide on the slide rail rod 8 with the first sleeve 9 and the second sleeve 10 and rotate themselves, assisting the shock-absorbing spring 4 to better disperse the vibration, reduce the impact of the vibration on the goods on the load-bearing plate 6, and protect the goods from damage.

[0030] At the same time, the first connecting member 16 drives the pneumatic piston to slide back and forth under the reciprocating sliding action of the first sleeve 9, and the control mechanism starts to work. The outside air enters the first piston box 15 through the air inlet pipe 23. The one-way valve in the air inlet pipe 23 ensures that the air can only flow from the outside to the first piston box 15. The one-way valve in the air supply pipe 17 ensures that the air can only flow from the first piston box 15 to the elastic airbag 13, so that the elastic airbag 13 on the bearing plate 6 is inflated. A pair of elastic airbags 13 are fixedly connected to a pair of baffles 12 respectively. The inflated elastic airbags 13 fit tightly to the goods, stabilize the goods on the bearing plate 6, and prevent the goods from being displaced or collided due to shaking, turning, etc. during transportation. The pressure valve 18 is installed on the elastic airbag 13 to control the pressure in the elastic airbag 13 to ensure that it is stable within a suitable range, which can effectively fix the goods without causing excessive squeezing of the goods.

[0031] During the operation of the unmanned vehicle, the contour scanning unit generates heat and needs to be cooled. Under the reciprocating sliding action of the second sleeve 10, the second connecting member 20 drives the hydraulic piston to slide reciprocatingly, and the pumping mechanism starts to work. The coolant in the liquid storage tank 25 flows into the second piston box 19 through the liquid inlet pipe 21. The one-way valve in the liquid inlet pipe 21 ensures that the coolant can only flow from the liquid storage tank 25 to the second piston box 19. The hydraulic piston pumps the coolant into the serpentine cooling pipe 27 through the infusion pipe 24. The one-way valve in the infusion pipe 24 ensures that the coolant can only flow from the second piston box 19 to the serpentine cooling pipe 27. The serpentine cooling pipe 27 is fixedly connected to the rectangular groove 26 at the bottom of the vehicle body 1, and its two end openings extend to the outside of the side wall of the vehicle body 1 respectively. The coolant flows in the serpentine cooling pipe 27 to absorb the heat generated when the contour scanning unit is working. The coolant after absorbing heat flows back to the liquid storage tank 25 through the return pipe 21. The one-way valve in the return pipe 21 ensures that the coolant can only flow from the serpentine cooling pipe 27 to the liquid storage tank 25, thereby realizing the circulation of the coolant, continuously cooling the contour scanning unit, ensuring its normal operation, and extending the service life of the equipment.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A contour scanning laser navigation unmanned vehicle for intelligent logistics, comprising a vehicle body (1), characterized in that: The vehicle body (1) is provided with laser navigation radars (2) around its periphery. Two pairs of bases (3) are symmetrically fixedly connected on both sides of the upper end of the vehicle body (1). A slide rail rod (8) is fixedly connected between each pair of the bases (3). A first sleeve (9) and a second sleeve (10) are symmetrically slidably connected on the slide rail rod (8). A bearing plate (6) is installed on the upper end of the base (3) via a shock absorbing mechanism. Stabilization mechanisms for stabilizing goods are installed on both sides of the upper end of the bearing plate (6). A first piston box (15) is fixedly connected to the vehicle body (1) via a fixing rod. The first piston box (15) A control mechanism for controlling the action of the stabilization mechanism is installed on the body (15); a rectangular groove (26) is provided at the bottom of the body (1); a cooling mechanism for reducing the temperature of the contour scanning unit when it is working is installed in the rectangular groove (26); a liquid storage tank (25) is fixedly installed in the middle of the upper end of the body (1) and is fixedly connected to a second piston box (15) through a fixing rod; a pumping mechanism for pumping coolant into the cooling mechanism is installed in the second piston box (15); and a reflux mechanism for returning the coolant of the cooling mechanism to the liquid storage tank (25) is installed on the liquid storage tank (25).

2. According to claim 1, the contour scanning laser navigation unmanned vehicle for intelligent logistics is characterized in that: The shock absorbing mechanism comprises a shock absorbing spring (4), a spring positioning pin (7), a connecting plate (5), a first connecting rod (11) and a second connecting rod (14); two pairs of the connecting plates (5) are symmetrically fixedly connected at four corners of the lower end of the bearing plate (6); four shock absorbing springs (4) are elastically connected between the connecting plates (5) and the base (3) at corresponding positions; the spring positioning pin (7) is fixed at the lower end of the connecting plate (5) and is covered by the shock absorbing spring (4); two ends of the first connecting rod (11) are rotatably connected to the second sleeve (10) and the side wall of the connecting plate (5); and the second connecting rod (14) is rotatably connected to the first sleeve (9) and the side wall of the connecting plate (5).

3. According to claim 1, the contour scanning laser navigation unmanned vehicle for intelligent logistics is characterized in that: The stabilizing mechanism comprises a baffle (12) and an elastic airbag (13); a pair of the baffles (12) are symmetrically fixedly connected to the upper end of the bearing plate (6); and a pair of the elastic airbags (13) are respectively fixedly connected to a pair of the baffles (12).

4. According to claim 3, the contour scanning laser navigation unmanned vehicle for intelligent logistics is characterized in that: The control mechanism comprises a pneumatic piston, an air intake pipe (23), an air supply pipe (17) and a pressure valve (18); the pneumatic piston is sealingly and slidably connected between the inner wall of the first piston box (15); the air intake pipe (23) is arranged to communicate between the first piston box (15) and the outside; a pair of the air supply pipes (17) are arranged to communicate between the first piston box (15) and a pair of the elastic air bags (13); the pressure valve (18) is mounted on the pair of the elastic air bags (13); and the pneumatic piston is fixedly connected to the first sleeve (9) via a first connecting member (16).

5. The contour scanning laser navigation unmanned vehicle for intelligent logistics according to claim 4 is characterized in that: A one-way valve is installed in the air inlet pipe (23) to allow only air to flow from the outside to the first piston box (15), and a one-way valve is installed in the air delivery pipe (17) to allow only air to flow from the first piston box (15) to the elastic airbag (13).

6. The intelligent logistics contour scanning laser navigation unmanned vehicle according to claim 1 is characterized in that: The cooling mechanism comprises a serpentine cooling pipe (27), the serpentine cooling pipe (27) being fixedly connected in the rectangular groove (26) and having openings at both ends extending to the outside of the side wall of the vehicle body (1).

7. The contour scanning laser navigation unmanned vehicle for intelligent logistics according to claim 6 is characterized in that: The liquid pump mechanism comprises a hydraulic piston, a liquid inlet pipe (21) and a liquid infusion pipe (24); the hydraulic piston is sealingly and slidably connected between the inner wall of the second piston box (19); the liquid inlet pipe (21) is arranged in communication between the first piston box (19) and the liquid storage tank (25); the liquid infusion pipe (24) is arranged in communication between the first piston box (19) and the liquid inlet end of the serpentine cooling pipe (27); and the hydraulic piston is fixedly connected to the second sleeve (10) via a second connecting member (20).

8. The contour scanning laser navigation unmanned vehicle for intelligent logistics according to claim 6 is characterized in that: The reflux mechanism comprises a reflux pipe (21), the reflux pipe (21) being arranged in communication between the serpentine cooling pipe (27) and the liquid storage tank (25), and a one-way valve is installed in the reflux pipe (21) for allowing the coolant to flow from the serpentine cooling pipe (27) to the liquid storage tank (25).

9. The contour scanning laser navigation unmanned vehicle for intelligent logistics according to claim 7 is characterized in that: The liquid inlet pipe (21) is provided with a one-way valve that only allows the coolant to flow from the liquid storage tank (25) to the second piston box (19), and the liquid delivery pipe (24) is provided with a one-way valve that allows the coolant to flow from the second piston box (19) to the serpentine cooling pipe (27).

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