An underground logistics vehicle

Abstract

The present invention discloses an underground logistics vehicle, which relates to the technical field of underground pipeline transportation and solves the technical problems of high pipeline construction cost and low cargo transportation efficiency. It includes a frame and a bogie, and end bearing frames are respectively provided at both ends along the length direction of the frame; the bogie includes running wheels and guide wheels, and the bogie is connected to the end bearing frames; the bottom surface height of the end bearing frame is greater than the bottom surface height of the frame, the running wheels run along the running surface of the drainage ditch, and the guide wheels run along the guide surface of the drainage ditch. The present invention designs the end bearing frame to be a structural form higher than the bottom surface of the frame, so that the frame as a whole has a concave structure. Under the conditions of the same pipeline cross-sectional size and the same vehicle length, the volume of the vehicle can be increased by more than 30%. In addition, the present invention cleverly uses the drainage ditch in the pipeline as a guide rail for the bogie, and there is no need to set up an additional guide rail, which simplifies the structural design of the pipeline and reduces the construction cost of the pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of underground pipeline transportation, in particular to an underground logistics vehicle. Background Art

[0002] With the growing development of urban underground logistics systems, the design of underground pipeline transport vehicles has gradually become a significant research topic. The cross-sectional area of ​​the pipeline and the structural facilities within the pipeline determine the pipeline construction cost and cargo transportation efficiency. The larger the cross-sectional area of ​​the pipeline, the higher the height of the corresponding vehicle can be designed, thereby increasing the vehicle volume and improving cargo transportation efficiency. However, this also significantly increases the corresponding pipeline construction cost. The simpler the internal structural facilities, the greater the cost reduction of pipeline construction. Both the cross-sectional area of ​​the pipeline and the design of the internal structural facilities affect the structural design of underground logistics vehicles.

[0003] Therefore, how to design a structure for underground logistics vehicles that can minimize pipeline construction costs while improving cargo transportation efficiency is a technical problem that needs to be urgently solved by technicians in this technical field. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art and provide an underground logistics mobile vehicle to solve the technical problems of high pipeline construction cost and low cargo transportation efficiency.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] An underground logistics vehicle runs along a drainage ditch in a pipeline to transport goods, wherein the drainage ditch includes a running surface and a guide surface. The underground logistics vehicle includes:

[0007] a vehicle frame, with end supports respectively provided at both ends along the length direction of the vehicle frame; and;

[0008] A bogie, comprising running wheels and guide wheels, wherein the bogie is connected to the end bearing frame;

[0009] The bottom surface of the frame is recessed along the height direction of the frame, the bottom surface height of the end support frame is greater than the bottom surface height of the frame, the running wheels run along the running surface of the drainage ditch, and the guide wheels run along the guide surface of the drainage ditch.

[0010] On the basis of the above technical solution, the underground logistics mobile vehicle can also be improved as follows.

[0011] Optionally, the vehicle frame includes a frame structure formed by connecting a base frame, columns and a top frame, the end support frame is connected to the columns, the end support frame includes an end support beam and an end support plate, a circular arc transition is formed between the root of the end support beam and the column, and the end support plate is arranged on the end support beam.

[0012] Optionally, a spring seat is provided at the bottom of the end support beam, a first shock-absorbing seat is provided at the top of the end support beam, a spring assembly is connected between the frame and the bogie through the spring seat, and a shock absorber is connected between the frame and the bogie through the first shock-absorbing seat.

[0013] Optionally, the end support beam is connected to a mounting base for installing an electrical cabinet or a supercapacitor, the end support plate is provided with a buffer device for connecting the coupler and the buffer, and the top of the frame is also connected to a mounting frame for installing a current collector.

[0014] Optionally, the bogie includes a plate frame, the plate frame includes an upper cover plate, a lower cover plate and an edge banding plate, the upper cover plate and the lower cover plate are both I-shaped and arranged opposite to each other, a plurality of edge banding plates are connected to the plate edge position between the upper cover plate and the lower cover plate, the upper cover plate, the lower cover plate and the edge banding plates are combined to form an I-shaped box structure, and the bottom of the plate frame is connected to a guide frame for installing the guide wheel.

[0015] Optionally, the upper cover plate and the lower cover plate are respectively connected with semicircular connecting plates at the opening position of the I-shape, and the connecting plate on the upper cover plate and the connecting plate on the lower cover plate are combined to form an annular structure, and the annular surface of the annular structure is connected to a flange plate for installing the walking wheel, and the inner circumference of the annular structure is connected to a reinforcement ring for enhancing the connection strength of the connecting plate, and the first drive motor for driving the walking wheel to walk is installed in the reinforcement ring.

[0016] Optionally, a first reinforcing partition and a second reinforcing partition are provided in the plate frame of the box-type structure, and the edge sealing plate, the first reinforcing partition and the second reinforcing partition are all supported between the upper cover plate and the lower cover plate, and the first reinforcing partition and the second reinforcing partition are respectively parallel to the edge sealing plate.

[0017] Optionally, the upper cover plate is provided with a spring assembly hole, and the first reinforcing baffle and / or the second reinforcing baffle sinks toward the lower cover plate at the position of the spring assembly hole. A third reinforcing baffle is also provided in the plate frame of the box-type structure at the position of the spring assembly hole, and the height of the third reinforcing baffle is the same as the height of the first reinforcing baffle and / or the second reinforcing baffle after sinking.

[0018] Optionally, the upper cover plate and the lower cover plate are respectively provided with pin sleeve holes in corresponding positions, a pin sleeve is connected between the pin sleeve hole of the upper cover plate and the pin sleeve hole of the lower cover plate, a traction ball hinge is installed in the pin sleeve, the traction ball hinge is connected to a traction pin for connecting to the end support frame, the pin sleeve is connected to the edge sealing plate, the edge sealing plate is connected to a fourth reinforcing partition plate at the pin sleeve position, and the plate frame is also connected to a second vibration damping seat.

[0019] Optionally, a conveying clamping device is provided in the frame, and the conveying clamping device includes a bracket, on which are provided a plurality of rollers having the same length direction as the frame, and the plurality of rollers are rotatably connected to the bracket, and a clamping assembly for clamping the goods on the rollers is provided on the bracket or the frame.

[0020] Optionally, the bracket includes two support beams respectively arranged at both ends of the roller, and the upper surfaces of the two support beams are higher than the upper surfaces of the plurality of rollers.

[0021] Optionally, the clamping assembly includes two clamping arms arranged on the support beam or the frame, one end of the two clamping arms is rotatably arranged at the two ends of the same support beam, and the other end of the two clamping arms selectively moves away from or close to the support beam to tighten or loosen the goods on the roller.

[0022] Optionally, a column is connected to the support beam or the frame, the clamping arm is hinged to the column, and a telescopic device is hinged between the two clamping arms. The two clamping arms selectively move away from or close to the support beam through the telescopic device, and two stops are also connected to the support beam or the frame.

[0023] Optionally, a transmission member is provided at one end of the roller, and the transmission member is connected to a second drive motor. The second drive motor drives the plurality of rollers to rotate simultaneously through the transmission member to transport the goods on the rollers.

[0024] Optionally, a gear is provided at one end of the roller, the transmission member is a chain, the chain is meshed and connected with the plurality of rollers, the bracket is provided with a transmission port located below the output end of the second drive motor, the chain passes through the transmission port and is meshed and connected with the second drive motor, and the bracket or the frame is provided with a proximity switch for detecting the cargo.

[0025] Compared with the prior art, the underground logistics vehicle provided by the present invention has the following beneficial effects:

[0026] 1. The present invention designs the end support frame to be higher than the bottom surface of the vehicle frame, giving the entire vehicle frame a concave structure. Compared with the traditional flat-bottom frame structure, when the end support frame is connected to the bogie, the vehicle volume can be increased by more than 30% under the conditions of the same pipe cross-section size and the same vehicle length, thereby significantly improving the vehicle's transportation efficiency.

[0027] 2. The present invention cleverly utilizes the drainage ditch in the pipeline as the guide rail of the bogie. The bogie runs on the running surface of the drainage ditch through the running wheels, and runs on the guide surface of the drainage ditch through the guide wheels. There is no need to set up additional guide rails, which simplifies the structural design of the pipeline and reduces the construction cost of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the underground logistics mobile vehicle of the present invention;

[0030] Figure 2 This is a schematic diagram of the main structure of the underground logistics vehicle of the present invention;

[0031] Figure 3 yes Figure 1 Schematic diagram of the main structure of the mid-frame;

[0032] Figure 4 yes Figure 1 A schematic diagram of the three-dimensional structure of the mid-frame from a top view;

[0033] Figure 5 yes Figure 1 A schematic diagram of the three-dimensional structure of the mid-frame when viewed from above;

[0034] Figure 6 yes Figure 1 A schematic top view of the three-dimensional structure of the middle bogie frame;

[0035] Figure 7 yes Figure 1 A schematic diagram of the three-dimensional structure of the middle bogie frame when viewed from above;

[0036] Figure 8 yes Figure 1 Schematic diagram of the internal three-dimensional structure of the middle bogie frame;

[0037] Figure 9 yes Figure 1 Schematic diagram of the three-dimensional structure of the middle bogie;

[0038] Figure 10 yes Figure 1 Schematic diagram of the structure of the middle bogie running on the drainage ditch;

[0039] Figure 11 yes Figure 1 Schematic diagram of the three-dimensional structure of the conveying clamping device;

[0040] Figure 12 yes Figure 11 An enlarged schematic diagram of the structure connecting the gears on the middle roller and the chain;

[0041] Figure 13 yes Figure 1 Schematic diagram of the structure of the conveying clamping device installed on the frame.

[0042] In the picture:

[0043] 100 - frame; 111 - main beam; 112 - secondary beam; 113 - bottom plate; 114 - corner column; 115 - side column; 116 - longitudinal beam; 117 - cross beam; 118 - top plate; 119 - reinforcement plate; 120 - end support frame; 121 - end support beam; 122 - end support plate; 123 - spring seat; 124 - first vibration damping seat; 130 - buffer device; 140 - mounting frame; 150 - mounting seat;

[0044] 200-Bogie; 210-Plate Frame; 211-Upper Cover; 2111-Spring Assembly Hole; 2112-Pin Bushing Hole; 212-Lower Cover; 213-Edge Plate; 2131-First Reinforced Bulkhead; 2132-Second Reinforced Bulkhead; 2133-Third Reinforced Bulkhead; 2134-Fourth Reinforced Bulkhead; 214-Connecting Plate; 215-Flange Plate; 216-Reinforcement Ring; 217-Pin Bushing; 218-Second Shock Absorber; 220-Traveling Wheel; 230-Guide Wheel; 231-Guide Frame; 2311-Reinforcement Rib; 240-First Drive Motor; 250-Spring Assembly; 260-Traction Ball Joint; 270-Traction Pin; 280-Shock Absorber; 291-Traveling Surface; 292-Guide Surface;

[0045] 300 - conveying clamping device; 310 - support beam; 320 - roller; 330 - clamping arm; 340 - column; 350 - telescopic device; 360 - stopper; 370 - transmission member; 380 - second drive motor; 390 - gear; 311 - proximity switch; 312 - transmission port;

[0046] 400-Electrical cabinet; 500-Supercapacitor; 600-Current collector. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is apparent that the embodiments described are only a portion of the embodiments of the present invention, and are not comprehensive. All other implementations derived by those skilled in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0048] Example:

[0049] like Figure 10 As shown, urban underground logistics vehicles run in underground pipelines, and drainage ditches are usually set in the pipelines for draining sewage or accumulated water. The present invention uses the top of the drainage ditch as the running surface 291 and the side wall of the drainage ditch as the guide surface 292.

[0050] The present invention provides an underground logistics vehicle, such as Figures 1 to 13 As shown, it includes a vehicle frame 100, a bogie 200 and a conveying clamping device 300. Figures 3 to 5 As shown, the vehicle frame 100 includes a frame structure formed by interconnecting a bottom frame, columns, and a top frame. Specifically, the bottom frame includes a main beam 111, a secondary beam 112, and a bottom plate 113. The main beam 111 is disposed in the middle portion of the bottom of the frame 100 along the length of the vehicle frame 100. A plurality of secondary beams 112 are connected to the main beam 111 along the width of the vehicle frame 100 by welding or bolting. The plurality of secondary beams 112 are spaced apart along the length of the main beam 111. The upper surfaces of the connected main beam 111 and secondary beams 112 are flush. The bottom plate 113 is connected to the upper surfaces of the main beam 111 and secondary beams 112 by welding or bolting.

[0051] The main beam 111 can be made of materials such as I-beams, channel steel, or composite steel. The secondary beam 112 can be a variable-section beam, with the cross-sectional area at the base of the secondary beam 112 being larger than the cross-sectional area at the ends. Of course, depending on the specific span of the vehicle frame 100, a chassis structure combining multiple longitudinal and transverse beams can also be used. Depending on the type of cargo being transported, the vehicle frame 100 can also be designed with an open-top structure.

[0052] like Figures 3 to 5 As shown, the uprights include corner posts 114 and side posts 115. The four corner posts 114 are connected to the four corners of the chassis by welding or bolting. The side posts 115 are disposed on the chassis between the corner posts 114 along the length of the vehicle frame 100. The uprights can be made of materials such as I-beams, channel steel, or composite steel.

[0053] like Figures 3 to 5As shown, the top frame includes longitudinal beams 116, transverse beams 117, and a top plate 118. The ends of longitudinal beams 116 and transverse beams 117 are respectively connected to the tops of the columns by welding or bolting. Top plate 118 is also connected to longitudinal beams 116 and transverse beams 117 by welding or bolting. Longitudinal beams 116 and transverse beams 117 can be made of rectangular tubing. To enhance the rigidity of the top of frame 100, a reinforcement plate 119 is connected between the columns by welding or bolting. One side of reinforcement plate 119 is connected to the top frame.

[0054] like Figures 1 to 5 As shown, two end bearing frames 120 are respectively provided at both ends of the vehicle frame 100 along the longitudinal direction of the vehicle frame 100 for connection to the bogie 200. Specifically, the end bearing frames 120 include two end bearing beams 121 with an L-shaped cross-section. The short side of each end bearing beam 121 is connected to the corresponding corner column 114 and secondary beam 112 by welding or bolting.

[0055] The long side of each end bolster 121 forms an inward-contracting arc transition between the corresponding corner post 114 and secondary beam 112 to prevent interference between the end bolster 121 and the wheels. An end bolster plate 122 is connected between the two end bolsters 121 by welding or bolting. The end bolster plate 122 also forms an inward-contracting arc transition with the corresponding secondary beam 112. Together, the end bolster plates 122 and the two end bolsters 121 form the end bolster frame 120 connected to the bogie 200.

[0056] like Figures 1 to 5 As shown, it is noteworthy that the bottom height of the end support frame 120 is greater than that of the vehicle frame 100, that is, the bottom of the end support beam 121 is higher than the top of the underframe. When the end support frame 120 is connected to the bogie 200, the entire vehicle frame 100 forms a structure with a concave center. The increased height of the end support frame 120 lowers the top frame of the vehicle frame 100. For the same pipeline cross-section and vehicle length, the height of the uprights can be extended. This further raises the top frame of the vehicle frame 100 relative to the existing vehicle frame 100, thereby increasing the vehicle volume, significantly improving transportation efficiency, and reducing pipeline construction costs. Compared to existing vehicle frames, the vehicle frame of the present invention can increase vehicle volume by at least 30%.

[0057] It will be appreciated that the connection method between the end support frame 120 and the frame 100 may vary depending on the structural form of the frame 100. For example, for a frame 100 with an end wall structure, the end support frame 120 may be directly connected to the end wall. For a frame 100 without an end wall structure, a crossbeam may be added between the two corner posts 114 at the end wall location, thereby connecting the end support frame 120 to the crossbeam, the secondary beam 112, and the two corner posts 114, respectively, to ensure the reliability of the connection of the end support frame 120.

[0058] Of course, the height to which the end support frame 120 is raised relative to the underframe can be determined according to the actual distance between the underframe of the vehicle frame 100 and the ground after the end support frame 120 is connected to the bogie 200 .

[0059] like Figures 1 to 5 As shown, in order to facilitate the connection between the end bearing frame 120 and the bogie 200, a spring seat 123 corresponding to the position of the spring assembly 250 on the bogie 200 is provided at the bottom of the end bearing beam 121, and a first vibration damper seat 124 corresponding to the position of the shock absorber 280 on the bogie 200 is provided on the top lower surface of the end bearing beam 121. The end bearing frame 120 is connected to the bogie 200 through the spring seat 123 and the first vibration damper seat 124 respectively.

[0060] like Figures 1 to 5 As shown, in order to facilitate the connection between adjacent frames 100, a buffer device 130 is provided on the end support plate 122. A coupler and a buffer are installed in the buffer device 130. The adjacent frames 100 are connected through the coupler and the buffer is used to reduce vibration.

[0061] like Figures 1 to 5 As shown, mounting brackets 140 are specifically connected to the top of each end of the frame 100 along its length. Specifically, the mounting brackets 140 are connected to the corner posts 114 via two channel steels, forming a triangular structure. A channel steel edge seal is connected between the channel steels on the two corner posts 114 to form the mounting brackets 140. A current collector 600 is mounted on the mounting brackets 140 for receiving electrical energy. Furthermore, mounting bases 150 formed by two channel steels are also connected to the top surface of the end support frame 120. An electrical cabinet 400 for controlling electrical energy is mounted on the mounting base 150 at one end of the frame 100, while a supercapacitor 500 or a battery for storing electrical energy is mounted on the mounting base 150 at the other end of the frame 100.

[0062] The present invention utilizes mounting brackets 140 to mount current collectors 600 atop both ends of the vehicle. This allows the station charging device to be installed above the vehicle, freeing up space for surface cargo transport and further improving the efficiency of underground pipeline transportation. Furthermore, mounting brackets 150 are equipped with supercapacitors 500 or batteries, which charge the vehicle while loading or unloading cargo at the station. This eliminates the need for or reduces the number of transmission lines within the pipeline, significantly reducing pipeline construction costs.

[0063] like Figures 6 to 9As shown, the bogie 200 includes a plate frame 210 and a guide frame 231. The plate frame 210 is an I-shaped box structure to meet the load-bearing requirements of the vehicle frame 100. The plate frame 210 includes an upper cover plate 211, a lower cover plate 212, and an edge plate 213. The upper cover plate 211 and the lower cover plate 212 are both I-shaped and arranged opposite to each other. A plurality of edge plates 213 are connected between the upper cover plate 211 and the lower cover plate 212 along the plate edge between the upper cover plate 211 and the lower cover plate 212, so that the upper cover plate 211, the lower cover plate 212, and the edge plates 213 enclose an I-shaped box structure. The upper cover plate 211, the lower cover plate 212, and the edge plates 213 are connected by welding or bolting.

[0064] like Figure 8 As shown, the ends of the two edge panels 213 located in the middle of the I-shape extend toward the two edge panels 213 at the edges of the I-shape, thereby forming the I-shaped plate frame 210 into a box-like structure with four independent enclosed spaces. Simultaneously, the middle portion of the plate frame 210 also forms a long, independent, enclosed box-like structure.

[0065] like Figures 6 to 9 As shown, a semicircular connecting plate 214 is connected to the I-shaped opening of the upper cover plate 211 by welding or bolting. Similarly, a semicircular connecting plate 214 is also connected to the I-shaped opening of the lower cover plate 212. The connecting plate 214 on the upper cover plate 211 and the connecting plate 214 on the lower cover plate 212 form an annular structure, which serves as the running portion of the plate-type frame 210. A flange plate 215 is connected to the annular surface of the annular structure by welding or bolting. The flange plate 215 has multiple threaded holes for mounting the running wheels 220. In addition, a reinforcement ring 216 is connected to the inner circumference of the annular structure by welding or bolting to enhance the connection strength of the connecting plate 214. Of course, to improve the overall strength of the connecting plate 214, two connecting plates 214 can be connected to the I-shaped opening on the same side of the upper cover plate 211 and the lower cover plate 212, with the reinforcement ring 216 connected between the two connecting plates 214.

[0066] like Figure 8As shown, to further enhance the load-bearing capacity of the panel frame 210, a first reinforcing baffle 2131 and a second reinforcing baffle 2132 are respectively installed within the four independent enclosed spaces at the limbs of the panel frame 210. The first reinforcing baffle 2131 is parallel to the edge panels 213 at the edges of the I-shaped structure, while the second reinforcing baffle 2132 is parallel to the edge panels 213 at the center of the I-shaped structure. Thus, the edge panels 213, the first reinforcing baffle 2131, and the second reinforcing baffle 2132 are jointly supported between the upper cover 211 and the lower cover 212, jointly bearing the weight of the vehicle frame 100. Of course, depending on the specific dimensions of the panel frame 210 and the dimensions of each independent enclosed space, more reinforcing baffles can be installed within each independent enclosed space, for example, arranged in a grid pattern. Furthermore, depending on the load conditions of the panel frame 210, the reinforcing baffles can be arranged at an angle to the edge panels 213, for example, in an inclined grid pattern.

[0067] like Figures 6 to 9 As shown, the guide frame 231 is connected to the four corners of the lower cover plate 212 by welding or bolting. The guide frame 231 is provided with bolt holes for connecting to the guide wheel 230. Three reinforcing ribs 2311 are welded or bolted between the guide frame 231 and the lower cover plate 212 to enhance the structural strength of the guide frame 231. The surface of the guide frame 231 is parallel to the travel direction of the guide wheel 230, and the three reinforcing ribs 2311 are perpendicular to the surface of the guide frame 231.

[0068] The plate frame 210 designed in the present invention is connected to the running wheels 220 via a flange plate 215 on the running section, and is further connected to the guide wheels 230 via a guide frame 231. This allows the running wheels 220 to move on the running surface 291 while the guide wheels 230 guide the plate frame 210 on the guide surface 292. This fully utilizes the shape of the drainage ditch within the pipeline, eliminating the need for an internal guide rail. Furthermore, the plate frame 210 has an overall I-shaped box-like structure. Through the rational design of the edge sealing plate 213, the first reinforcing partition 2131, and the second reinforcing partition 2132, the overall dimensions of the bogie 200 can be significantly reduced while maintaining the same weight as the vehicle frame 100. This facilitates shortening the length of underground pipeline transport vehicles and improving the flexibility of pipeline routes. The annular structure of the running section also facilitates the installation of the first drive motor 240 that drives the running wheels 220, allowing the first drive motor 240 to be located within the plate frame 210.

[0069] It is understood that, depending on the load-bearing requirements of the plate frame 210, if the bogie 200 needs to be designed as a dual-axle, tri-axle, or multi-axle bogie 200, multiple plate frames 210 can be interconnected along the direction in which the running wheels 220 travel, thereby forming a dual-axle, tri-axle, or multi-axle bogie 200. Of course, the plate frame 210 of the present invention can also be designed as a rectangular box-type structure, with the running gear designed as a whole above the plate frame 210, which can also achieve the functions of the running wheels 220 running on the running surface 291 and the guide wheels 230 running on the guide surface 292. At the same time, the rectangular box-type plate frame 210 also has the characteristic of being smaller in size and appearance than the side frame or beam-type bogie structure.

[0070] like Figures 6 to 9 As shown, spring assembly holes 2111 are provided at the four corners of the upper cover plate 211 for mounting spring assembly 250. Third reinforcing baffles 2133 are also provided within the independent, enclosed spaces corresponding to the spring assembly holes 2111. The first and third reinforcing baffles 2131 and 2133 are recessed toward the lower cover plate 212 at the locations of the spring assembly holes 2111. This means that the first and third reinforcing baffles 2131 and 2133 have notches at the locations of the spring assembly holes 2111, increasing the height of the spring assembly 250 and improving the vehicle's dynamic performance. Of course, if the cross-sectional dimensions of the spring assembly holes 2111 are designed to be larger, additional third reinforcing baffles 2133 can be provided, or the second reinforcing baffles 2132 can be used directly as the third reinforcing baffles 2133. In this case, the first, second, and third reinforcing baffles 2131, 2132, and 2133 all have the same downward depth.

[0071] like Figures 6 to 9 As shown, corresponding pin sleeve holes 2112 are provided at the center of the upper and lower cover plates 211 and 212, respectively. A pin sleeve 217 for mounting a traction pin 270 is connected between the pin sleeve holes 2112 of the upper and lower cover plates 211 by welding or bolting. The pin sleeve 217 is also connected to the edge banding 213. To enhance the connection strength of the pin sleeve 217, a fourth reinforcing baffle 2134 is welded or bolted between the two edge bandings 213 located in the middle of the I-shaped structure. The fourth reinforcing baffle 2134 is welded to the pin sleeve 217. Furthermore, second vibration damping mounts 218 are connected to the edge banding 213 at the edges of the plate frame 210 for mounting the shock absorber 280 connected between the vehicle frame 100 and the plate frame 210. The second vibration damping mounts 218 are symmetrically located on either side of the plate frame 210.

[0072] like Figure 9 and Figure 10As shown, the running wheels 220 are bolted to the flange plates 215 on both sides of the plate frame 210. If the bogie 200 is designed as a power bogie, the first drive motor 240 that drives the running wheels 220 can be installed within the annular structure, so that the first drive motor 240 is located at the opening of the I-shaped plate frame 210. This prevents the first drive motor 240 from protruding from the plate frame 210 and protects the first drive motor 240. The guide wheels 230 are bolted to the guide frames 231 at the four corners of the lower cover plate 212. When the plate frame 210 travels over the gutter, the running wheels 220 travel along the gutter's running surface 291, and the guide wheels 230 travel along the gutter's guide surface 292.

[0073] like Figures 6 to 9 As shown, a spring assembly 250 is installed in spring assembly hole 2111. Spring assembly 250 is connected to spring seat 123 on end support frame 120 and spring assembly hole 2111. The sunken design of spring assembly hole 2111 allows spring assembly 250 to be designed at a higher height, thereby improving vehicle dynamic performance. A traction ball joint 260 is installed in pin sleeve hole 2112. A traction pin 270 is connected to traction ball joint 260, connecting vehicle frame 100 to plate frame 210 via traction pin 270. A shock absorber 80 is installed between first shock absorber seat 124 and second shock absorber seat 218.

[0074] like Figure 10 As shown, the plate-type bogie of the present invention features a compact structural design. Its box-type design and the inclusion of reinforcing baffles within the plate-type frame 210 reduce the bogie's overall dimensions while still meeting the bogie's load-bearing requirements, thereby shortening the vehicle length and facilitating flexible pipeline routing. Based on the structural characteristics of the drainage ditch, the present invention designates the running wheels 220 to run on the ditch's running surface 291, while the guide wheels 230 to run on the ditch's guide surface 292. This eliminates the need for guide rails in the pipeline, saving pipeline construction costs.

[0075] In particular, the running wheels 220 and the guide wheels 230 of the present invention both adopt a rubber wheel structure, which can reduce the impact force of the vehicle on the running surface 291 and the guide surface 292, thereby extending the life of the pipeline.

[0076] like Figures 11 to 13As shown, the conveying clamping device 300 includes a bracket, rollers 320, and a clamping assembly. The bracket includes two opposing support beams 310. The bracket can be made of materials such as channel steel, I-beams, or rectangular tubes. The two support beams 310 are welded or bolted to the bottom plate 113 of the vehicle frame 100. Both support beams 310 are perpendicular to the direction of travel of the vehicle frame 100. Multiple rollers 320 are rotatably connected between the two support beams 310. For example, holes can be opened or bearings can be provided in the two support beams 310 to enable the rollers 320 to rotate on the bracket after being connected to the support beams 310. The length of each roller 320 is aligned with the direction of travel of the vehicle frame 100, facilitating loading and unloading of cargo from both sides of the vehicle. The upper surfaces of the multiple rollers 320 are lower than the upper surfaces of the two support beams 310. This allows the height difference between the rollers 320 and the support beams 310 to define the placement of cargo along the direction of travel of the vehicle frame 100.

[0077] like Figure 11 As shown, a second drive motor 380 is mounted on one side of the support beam 310, and a transmission opening 312 is provided on the upper surface of the support beam 310 relative to the output end of the second drive motor 380. A transmission member 370 is provided inside the support beam 310, and the transmission member 370 can be a chain, which is engaged with the output end of the second drive motor 380 through the transmission opening 312. Figure 12 As shown, the rollers 320 are provided with gears 390 located within the support beam 310 on one side of the second drive motor 380. The gears 390 of each of the rollers 320 are meshed with a chain. When the second drive motor 380 is running, the chain rotates with the second drive motor 380, driving the rollers 320 to rotate simultaneously, thereby enabling the rollers 320 to move cargo within the vehicle frame 100. Of course, the transmission member 370 can also be configured as a transmission belt, allowing the rollers 320 to rotate on the support beam 310 via the transmission belt.

[0078] Specifically, a proximity switch 11 is mounted on the support beam 310 on one side of the second drive motor 380. Two proximity switches 11 are located at either end of the support beam 310. When both proximity switches 11 detect cargo, the second drive motor 380 stops, halting the rollers 320. When either proximity switch 11 detects cargo, the second drive motor 380 continues to operate, rotating the rollers 320. By installing two proximity switches 11 on the support beam 310, the present invention enables the rollers 320 to automatically start and stop according to the loading and unloading status of cargo, thereby achieving automated cargo transportation and reducing manual labor.

[0079] like Figure 11As shown, to ensure the stability of the cargo during transportation, the present invention further provides a clamping assembly on the support beam 310 for clamping the cargo on the roller 320. Specifically, the clamping assembly includes a clamping arm 330. Two columns 340 are connected to each end of the support beam 310 opposite the second drive motor 380 by welding or bolting. The tops of the columns 340 are hinged to the clamping arms 330.

[0080] like Figure 11 As shown, the clamping arm 330 is generally L-shaped, with the upright 340 hinged at the inflection point of the L-shaped structure. A telescopic mechanism 350 is hinged between the two short sides of the L-shaped structure. When the telescopic mechanism 350 is extended, the long side of the L-shaped structure moves closer to the support beam 310, preventing the clamping arm 330 from obstructing the loading and unloading of cargo. When the telescopic mechanism 350 is shortened, the long side of the L-shaped structure moves away from the support beam 310, and the cargo is pressed against the roller 320 by the long side of the L-shaped structure of the clamping arm 330, thereby ensuring the stability of the cargo during transportation.

[0081] Specifically, two stops 360 are welded or bolted to the support beam 310. These stops 360 correspond to the positions of the long sides of the L-shaped structure when they approach the support beam 310. When the clamping arm 330 approaches the support beam 310 via the telescopic mechanism 350, the stops 360 prevent the long sides of the L-shaped structure from returning to their original position relative to the support beam 310. The telescopic mechanism 350 can be constructed using a pneumatic cylinder, hydraulic cylinder, or electric cylinder.

[0082] During the loading process of the present invention, when the cargo reaches the vehicle's door, the second drive motor 380 is activated, and the roller 320 rotates to transfer the cargo into the vehicle frame 100. If the cargo's placement within the vehicle frame 100 needs to be adjusted, this is accomplished by controlling the rotation of the second drive motor 380. During unloading, the second drive motor 380 is again controlled to move the cargo to the vehicle's door and then transfer it to the designated location. This entire cargo handling process requires no human intervention, achieving the function of cargo movement within the vehicle frame 100 while reducing manual labor intensity.

[0083] It is understood that the clamping assembly, column 340, and stop 360 of the present invention can be installed not only on the support beam 310, but also on the vehicle frame 100 through welding or bolting, and can also clamp the cargo on the roller 320. Of course, the clamping assembly can also be designed to directly push the cargo through a telescopic device such as a pneumatic cylinder, hydraulic cylinder, or electric push cylinder. However, the present invention designs the clamping assembly as a clamping arm 330, which can save vehicle space and thus improve the loading rate of cargo transportation.

[0084] like Figure 11 and Figure 13 As shown, based on the actual length of the vehicle frame 100, two sets of the conveying clamping devices of the present invention are installed on the bottom plate 113 of the vehicle frame 100. This can reduce the span of the rollers 320, thereby increasing the load-bearing capacity of the rollers 320. Specifically, the support beams 310 on the side where the second drive motor 380 is mounted on the two sets of conveying clamping devices are adjacent to each other, and the support beams 310 on the side where the clamping arms 330 are mounted are spaced apart from each other. When both sets of second drive motors 380 rotate forward, the rollers 320 on the two sets of conveying clamping devices rotate in opposite directions. In other words, the two sets of conveying clamping devices are symmetrical about the midpoint of the support beam 310 on the side where the second drive motor 380 is mounted.

[0085] During the loading and unloading process, the two sets of conveying and clamping devices arranged symmetrically around the center enable cargo to be loaded and unloaded simultaneously from both sides of the vehicle, thereby improving cargo loading and unloading efficiency. Of course, depending on the actual length of the vehicle frame 100, more sets of conveying and clamping devices can be installed within the vehicle frame 100 along the direction of travel of the vehicle frame 100, thereby achieving automated loading and unloading of cargo throughout the vehicle.

[0086] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. An underground logistics vehicle, characterized in that: The underground logistics vehicle runs along a drainage ditch in a pipeline to transport goods, wherein the drainage ditch includes a running surface (291) and a guide surface (292). The underground logistics vehicle includes: A vehicle frame (100), end supports (120) being respectively provided at both ends along the length direction of the vehicle frame (100); and; A bogie (200) includes running wheels (220) and guide wheels (230), and the bogie (200) is connected to the end support frame (120); The bottom surface of the vehicle frame (100) is recessed along the height direction of the vehicle frame (100), the bottom surface height of the end support frame (120) is greater than the bottom surface height of the vehicle frame (100), the running wheels (220) run along the running surface (291) of the drainage ditch, and the guide wheels (230) run along the guide surface (292) of the drainage ditch; The vehicle frame (100) includes a frame structure formed by connecting a bottom frame, a column and a top frame, the end support frame (120) is connected to the column, the end support frame (120) includes an end support beam (121) and an end support plate (122), the root of the end support beam (121) and the column are in an arc transition, and the end support plate (122) is arranged on the end support beam (121); A spring seat (123) is provided at the bottom of the end support beam (121), a first vibration damping seat (124) is provided at the top of the end support beam (121), a spring assembly (250) is connected between the vehicle frame (100) and the bogie (200) via the spring seat (123), and a shock absorber (280) is connected between the vehicle frame (100) and the bogie (200) via the first vibration damping seat (124); The bogie (200) includes a plate-type frame (210), the plate-type frame (210) including an upper cover plate (211), a lower cover plate (212) and an edge-sealing plate (213), the upper cover plate (211) and the lower cover plate (212) both being I-shaped and arranged relative to each other, a plurality of edge-sealing plates (213) being connected to the plate edge positions between the upper cover plate (211) and the lower cover plate (212), the upper cover plate (211), the lower cover plate (212) and the edge-sealing plates (213) enclosing to form an I-shaped box-type structure, and a guide frame (231) for mounting the guide wheel (230) is connected to the bottom of the plate-type frame (210); The upper cover plate (211) and the lower cover plate (212) are respectively connected to a semicircular connecting plate (214) at the opening position of the I-shape, the connecting plate (214) on the upper cover plate (211) and the connecting plate (214) on the lower cover plate (212) enclose an annular structure, the annular surface of the annular structure is connected to a flange plate (215) for mounting the running wheel (220), the inner circumference of the annular structure is connected to a reinforcing ring (216) for enhancing the connection strength of the connecting plate (214), and the reinforcing ring (216) is installed with a first driving motor (240) for driving the running wheel (220) to move; A first reinforcing partition (2131) and a second reinforcing partition (2132) are provided in the plate frame (210) of the box-type structure. The edge sealing plate (213), the first reinforcing partition (2131) and the second reinforcing partition (2132) are all supported between the upper cover plate (211) and the lower cover plate (212). The first reinforcing partition (2131) and the second reinforcing partition (2132) are respectively parallel to the edge sealing plate (213).

2. The underground logistics vehicle according to claim 1, characterized in that: The end support beam (121) is connected to a mounting seat (150) for mounting an electrical cabinet (400) or a supercapacitor (500), the end support plate (122) is provided with a buffer device (130) for connecting a coupler and a buffer, and the top of the vehicle frame (100) is also connected to a mounting frame (140) for mounting a current collector (600).

3. The underground logistics vehicle according to claim 1, characterized in that: The upper cover plate (211) is provided with a spring assembly hole (2111), and the first reinforcing partition plate (2131) and / or the second reinforcing partition plate (2132) are sunken in the direction of the lower cover plate (212) at the position of the spring assembly hole (2111). The box-type plate frame (210) is further provided with a third reinforcing partition plate (2133) located at the position of the spring assembly hole (2111), and the height of the third reinforcing partition plate (2133) is the same as the height of the first reinforcing partition plate (2131) and / or the second reinforcing partition plate (2132) after sinking.

4. The underground logistics vehicle according to claim 1, characterized in that: The upper cover plate (211) and the lower cover plate (212) are respectively provided with pin sleeve holes (2112) at corresponding positions. A pin sleeve (217) is connected between the pin sleeve hole (2112) of the upper cover plate (211) and the pin sleeve hole (2112) of the lower cover plate (212). A traction ball hinge (260) is installed in the pin sleeve (217). The traction ball hinge (260) is connected to a traction pin (270) for connecting to the end support frame (120). The pin sleeve (217) is connected to the edge sealing plate (213). The edge sealing plate (213) is connected to a fourth reinforcing partition (2134) at the position of the pin sleeve (217). The plate-type frame (210) is also connected to a second vibration damping seat (218).

5. The underground logistics vehicle according to any one of claims 1 to 4, characterized in that: A conveying clamping device (300) is provided in the vehicle frame (100), and the conveying clamping device (300) comprises a bracket, and a plurality of rollers (320) having the same length direction as the vehicle frame (100) are provided on the bracket, and the plurality of rollers (320) are rotatably connected to the bracket, and a clamping assembly for clamping goods on the rollers (320) is provided on the bracket or the vehicle frame (100).

6. The underground logistics vehicle according to claim 5, characterized in that: The bracket comprises two support beams (310) respectively arranged at both ends of the roller (320), and the upper surfaces of the two support beams (310) are both higher than the upper surfaces of the plurality of rollers (320).

7. The underground logistics vehicle according to claim 6, characterized in that: The clamping assembly includes two clamping arms (330) arranged on the support beam (310) or the frame (100), one end of the two clamping arms (330) is rotatably arranged at the two ends of the same support beam (310), and the other end of the two clamping arms (330) is selectively moved away from or close to the support beam (310) to tighten or loosen the goods on the roller (320).

8. The underground logistics vehicle according to claim 7, characterized in that: The support beam (310) or the vehicle frame (100) is connected to a column (340), the clamping arm (330) is hinged to the column (340), and a telescopic device (350) is hinged between the two clamping arms (330). The two clamping arms (330) are selectively moved away from or close to the support beam (310) through the telescopic device (350). The support beam (310) or the vehicle frame (100) is also connected to two stops (360).

9. The underground logistics vehicle according to claim 5, characterized in that: A transmission member (370) is provided at one end of the roller (320), and the transmission member (370) is connected to a second drive motor (380). The second drive motor (380) drives the plurality of rollers (320) to rotate simultaneously through the transmission member (370) to transport the goods on the rollers (320).

10. The underground logistics vehicle according to claim 9, characterized in that: A gear (390) is provided at one end of the roller (320), the transmission member (370) is a chain, and the chain is meshedly connected with the plurality of rollers (320). The bracket is provided with a transmission port (312) located below the output end of the second drive motor (380), and the chain passes through the transmission port (312) and is meshedly connected with the second drive motor (380). A proximity switch (311) for detecting the goods is provided on the bracket or the vehicle frame (100).

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