Vehicle-mounted accelerator system

Abstract

The present invention provides an on-vehicle accelerator system, which belongs to the technical field of equipment for chemical or physical processes. The on-vehicle accelerator system provided by the present invention includes a container cabinet body, a high-energy radiation irradiation accelerator, a shielding device, an under-beam conveying device, and a ventilation device, in which an installation partition plate is provided laterally in the center of the installation space, the high-energy radiation irradiation accelerator is provided on the installation partition plate through the installation partition plate, the beam flow outlet window of the high-energy radiation irradiation accelerator is located below the installation partition plate, the shielding device is provided on the bottom surface of the container cabinet body, and the beam flow outlet window penetrates and enters the shielding device, the under-beam conveying device includes a plurality of sets of conveying chain units that can be assembled and disassembled, and the ventilation device includes an intake machine and a ventilation duct with one end provided on the upper top wall of the shielding device and the other end provided with an exhaust port, and the on-vehicle accelerator system provided by the present invention has the characteristics of good shielding effect, low load, and movable.

Description

[Technical field]

[0001] The present invention belongs to the technical field of equipment for chemical or physical processes, and in particular to on-board accelerator systems. [Background technology]

[0002] Due to the spread of the new coronavirus, the need for medical supplies is becoming increasingly high, and higher requirements are being placed on the rapid disinfection and sterilization of medical supplies. Medical supplies immediately after production are generally sterilized with ethylene oxide, then left to stand for 7 to 14 days, and can be used on site after passing inspection. However, the standing time of medical supplies after sterilization is too long, which greatly affects the use process of medical supplies, so a method of applying radiation sterilization technology instead of ethylene oxide sterilization is proposed. Radiation sterilization technology is a physical sterilization method, which has the advantages of short wavelength, strong penetrating power, thorough sterilization, no need for chemical disinfectants, no pollution, machine operation, low cost, high efficiency, no residual radioactivity, and environmental safety. High-energy radiation accelerators (generally 10MeV accelerators are often used) mainly use the generated electron beam on materials to perform applications such as disinfection sterilization, material modification, and material crosslinking. It is a common physical sterilization equipment, which has the advantages of low maintenance costs, high processing efficiency, strong penetrating power, and the ability to circulate and irradiate high-density and large-packaged products. The application of high-energy radiation accelerators shortens the sterilization time of medical supplies from the original 7-14 days to about 1 day. The success of sterilization by radiation irradiation of large amounts of medical supplies has accelerated the process of using medical supplies and solved the urgent need for disinfection and sterilization of medical supplies. However, the shielding of high-energy radiation accelerators is mainly made of reinforced concrete, with a thickness of 1.5-2.7m, and the load of the shielding and accelerator is high, reaching nearly 1,000 tons, and they are generally built far from the city and cannot be moved. The produced medical supplies need to be regularly transported to the high-energy radiation accelerator site for radiation sterilization, and then transported to places where infectious diseases are prevalent, which extends the process of using medical supplies, and secondary pollution may occur during the transportation of medical supplies, which may affect the use of medical supplies. Summary of the Invention [Problem to be solved by the invention]

[0003] An object of the present invention is to provide an on-vehicle accelerator system that solves the problem that the mass of the shield and accelerator is too large and difficult to move. [Means for solving the problem]

[0004] In order to achieve the above object, the technical solution adopted by the present invention is to provide an on-vehicle accelerator system, the on-vehicle accelerator system comprising: a container cabinet body having an installation space in the center of which an installation partition plate is provided laterally; a high-energy radiation irradiation accelerator provided in the mounting partition plate so as to penetrate the mounting partition plate, the beam flow extraction window being located below the mounting partition plate; The shielding device is provided on the bottom surface of the container cabinet body, and includes an entrance shield, an actuation shield, and an exit shield. The entrance shield and the exit shield are provided side by side. An arc-shaped actuation maze is provided in the actuation shield. An escape angle hole is provided on the upper top wall of the actuation maze, which is suitable for the beam flow extraction window to pass through and enter the actuation maze. The same side of the actuation shield has an actuation entrance and an actuation exit that are respectively connected to the actuation maze. a shielding device having an inlet and an outlet, an inflow maze within the inlet shielding body, the inlet shielding body being disposed at the working inlet, an outflow maze within the outlet shielding body, and the outlet shielding body being disposed at the working outlet, the inflow maze, the working maze, and the outflow maze being connected to each other, and a first arcuate shielding surface is provided on an inner wall of the working maze on one side away from the working inlet and the working outlet, and a second arcuate shielding surface is provided on an inner wall on the other side; an underbeam conveying device including a plurality of conveying chain units each having a detachable member, the detachable member realizing removal and assembly of two of the conveying chain units, the plurality of conveying chain units being provided at the bottom of the shielding device, the inner conveying chains being shaped to match the shapes of the inlet maze, the actuation maze and the outlet maze, the plurality of conveying chain units being provided outside the shielding device, the outer conveying chains being provided halfway around the outside of the container cabinet body, the first end of which is connected to the conveying chain unit at the entrance of the inlet maze through a front wall of the container cabinet body, and the second end of which is connected to the conveying chain unit at the exit of the outlet maze through a rear wall of the container cabinet body; A ventilation device including a ventilation duct and an intake, the ventilation duct including a first duct, a second duct, a third transition duct, and a fourth duct arranged in sequence and communicating with each other, the first duct being arranged on an upper top wall of the shielding device perpendicular to a longitudinal direction of the shielding device, the first duct being provided with an intake port communicating with the operating labyrinth, the second duct being arranged perpendicular to a first end of the first duct, and the first duct and the second duct being arranged in the same horizontal plane. the third transient duct has a downwardly curved arc, the fourth duct is arranged vertically upward relative to the third transient duct, an exhaust port is provided at one end of the fourth duct remote from the third transient duct, the intake machine is provided at one end of the fourth duct close to the third transient duct, an intake port of the intake machine is provided toward the third transient duct, and an exhaust port of the intake machine is provided toward the fourth duct.

[0005] In one possible embodiment, the rotation angle of the first arc-shaped shielding surface is 180°, the rotation angle of the second arc-shaped shielding surface is 180°, and the centers of the first arc-shaped shielding surface and the second arc-shaped shielding surface overlap.

[0006] In one possible embodiment, the outer wall of the actuation shield is provided with a reinforcing shield block, and the escape angle hole is provided on the central axis of the actuation shield.

[0007] In one possible form, the inlet shield includes a vertical inlet segment, a horizontal inlet segment, and a transient inlet segment, the transient inlet segment being disposed at the operational inlet, the horizontal inlet segment being disposed horizontally at the other end of the transient inlet segment, and the vertical inlet segment being disposed perpendicular to the horizontal inlet segment; and the outlet shield includes a vertical outlet segment, a horizontal outlet segment, and a transient outlet segment, the transient outlet segment being disposed at the operational outlet, the horizontal outlet segment being disposed horizontally at the other end of the transient outlet segment, and the vertical outlet segment being disposed perpendicular to the horizontal outlet segment.

[0008] In one possible form, the thickness of the outer wall of the transient inlet segment gradually decreases with distance from the actuation shield, the thickness of the outer wall of the horizontal inlet segment is less than the thickness of the outer wall of the transient inlet segment, the thickness of the outer wall of the vertical inlet segment is less than the thickness of the outer wall of the horizontal inlet segment, the thickness of the outer wall of the transient outlet segment gradually decreases with distance from the actuation shield, the thickness of the outer wall of the horizontal outlet segment is less than the thickness of the outer wall of the transient outlet segment, and the thickness of the outer wall of the vertical outlet segment is less than the thickness of the outer wall of the horizontal outlet segment.

[0009] In one possible embodiment, the conveying chain unit includes a roller, a transmission side plate, a rotating gear, a transmission chain, and a transmission motor, the roller is rotatably arranged between two sets of the transmission side plates, the multiple sets of rollers are uniformly distributed along the longitudinal direction of the transmission side plate, the rotating gear is arranged on the outside of the transmission side plate, the ends of the rollers are arranged at the center of the rotating gear, the transmission chain is hung on and meshes with the multiple sets of the rotating gears on the same side, the transmission motor drives the transmission chain to drive and rotate the rotating gear, and the detachable member is arranged at the end of the transmission side plate.

[0010] In one possible embodiment, the detachable member includes a first engagement block, a second engagement block, and a slide regulating sleeve, the first engagement block being provided at a first end of the transmission side plate, the second engagement block being provided at a second end of the transmission side plate, a first engagement groove that mates with the second engagement block being provided between the first engagement block and a side wall of the transmission side plate, and a second engagement groove that mates with the first engagement block being provided between the second engagement block and the side wall of the transmission side plate, the slide regulating sleeve being slidably provided on the transmission side plate by engaging and fitting together the first engagement block and the second engagement block that face each other on two adjacent transmission side plates, and being used to lock or unlock the engaged first engagement block and the second engagement block.

[0011] In one possible embodiment, the third transition duct includes a first connecting horizontal pipe, a first bent pipe, a second bent pipe, and a second connecting horizontal pipe arranged in sequence, the first connecting horizontal pipe connects the first duct and the first bent pipe, the first bent pipe is bent downward, the second bent pipe is bent in a direction away from the first connecting horizontal pipe, the second bent pipe connects the first bent pipe and the second connecting horizontal pipe, and the other end of the second connecting horizontal pipe is connected to the fourth duct.

[0012] In one possible embodiment, the first bent tube is an arc-shaped tube, the arc angle of the first bent tube is 90°, and the second bent tube is an arc-shaped tube, the arc angle of the second bent tube is 90°.

[0013] In one possible embodiment, the air intake is provided with a guide frame, the guide frame is inserted into the shielding body, and a seal gasket is provided on the outside of the guide frame.

[0014] The beneficial effects of the vehicle-mounted accelerator system provided by the present invention are as follows:

[0015] Compared with the conventional technology, the container cabinet body, the high-energy radiation irradiation accelerator, the shielding device, the under-beam transport device, and the ventilation device are provided, The high-energy radiation irradiation accelerator, the shielding device, and the ventilation device are installed in the container cabinet body, and the under-beam transport device is assembleable and detachable, which facilitates the transportation of the vehicle-mounted accelerator system. The shielding device includes an entrance shield, an operating shield, and an exit shield, the entrance shield and the exit shield being respectively provided in the operating shield, an operating maze being provided within the operating shield, an inflow maze being provided within the entrance shield, and an outflow maze being provided within the exit shield, the inflow maze and the outflow maze being respectively connected to the operating maze, an escape square hole being provided on the upper top wall of the operating maze, a beam flow extraction window of the accelerator penetrating through the escape square hole and entering the operating maze, medical materials entering the inflow maze and entering the operating maze through the inflow maze, the accelerator sterilizing the medical materials located in the operating maze, the medical materials being discharged from the shield through the outflow maze, and the side away from the operating entrance inside the operating maze being discharged. is a first arc-shaped shielding surface, and the second arc-shaped shielding surface faces the first arc-shaped shielding surface. The beam flow extraction window of the accelerator is located between the first arc-shaped shielding surface and the second arc-shaped shielding surface. Most of the emitted radiation is irradiated to the medical materials below, and some of the radiation reaches the first arc-shaped shielding surface and the second arc-shaped shielding surface through irradiation or reflection. When the radiation is reflected between the first arc-shaped shielding surface and the second arc-shaped shielding surface, the amount of radiation escaping from the working inlet and the working outlet is greatly reduced, and the shielding effect of the shielding body is improved. Under the premise that the shielding effect is ensured, the thickness of the shielding body can be correspondingly thinned, and the mass of the shielding body can be reduced, so that the shielding body can be moved along with the vehicle. The under-beam conveying device includes a plurality of conveying chain units, and a detachable member is provided at the end of the conveying chain unit to facilitate attachment and detachment of the conveying chain unit, and can be assembled as necessary in actual use to obtain different lengths and shapes, which is advantageous for transporting the under-beam conveying device. A shielding internal conveying chain is provided at the bottom of the shielding device, and the shielding internal conveying chain includes a plurality of conveying chain units, and the shielding internal conveying chain is arranged along the shapes of the inlet maze, the operating maze and the outlet maze. A shielding external conveying chain is provided outside the shielding device, and the shielding external conveying chain includes a plurality of conveying chain units and is provided outside the container cabinet body, and a first end of the shielding external conveying chain is connected to the conveying chain unit at the entrance of the inlet maze, and the shielding external conveying chain is connected to the conveying chain unit at the entrance of the inlet maze. the second end of the outer shielding conveying chain is connected to the conveying chain unit at the exit of the outflow maze; the first end of the outer shielding conveying chain is provided on the front wall of the container cabinet body; the second end of the outer shielding conveying chain is provided on the rear wall of the container cabinet body; the outer shielding conveying chain is provided on the outside of the container cabinet body in a half-circle; each set of conveying chain units is controlled individually, so that the transmission speed of the conveying chain units can be easily controlled for each set and controlled with high precision, to avoid the accumulation of medical supplies during transportation, and to realize the high-precision control of the transportation speed of medical supplies; the length and shape of the outer shielding conveying chain are set according to the actual usage situation; and the inlet and outlet of medical supplies are provided on the outer shielding conveying chain away from the shielding device, to reduce the damage caused to the operator by radiation; The ventilation device is provided with a ventilation duct and an intake machine, the ventilation duct including a first duct, a second duct, a third transition duct, and a fourth duct, the first duct is provided on the upper top wall of the shielding body, the first duct is provided with an intake port, the intake port is connected to the internal space of the shielding body, the gas containing ozone in the shielded space enters the first duct through the intake port, the first duct is provided perpendicular to the longitudinal direction of the shielding body, is provided on one side of the high-energy radiation irradiation accelerator, and is advantageous for discharging ozone generated in the vicinity of the high-energy radiation irradiation accelerator, and the second duct is provided perpendicular to the first duct. a third transient duct connecting the second duct and the fourth duct, the third transient duct being bent downward to reflect and attenuate a small amount of radiation from the high-energy radiation irradiation accelerator that escapes from the intake port, preventing radiation from escaping from the fourth duct and affecting the life safety of the operator; and a fourth duct being disposed vertically upward from the third transient duct to prevent ozone from being exhausted upward into the air, thereby preventing the life safety of the operator from being affected. [Brief description of the drawings]

[0016] In order to more clearly describe the technical solutions in the embodiments of the present invention, the following briefly describes the drawings that need to be used in the description of the embodiments or prior art; obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings based on these drawings without making any inventive efforts.

[0017] [Figure 1] FIG. 2 is a structural schematic diagram of a container cabinet body used in an embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic diagram of the axial structure of a shielding device used in an embodiment of the present invention. [Diagram 3] 1 is a schematic plan view of a shielding device used in an embodiment of the present invention; [Figure 4] FIG. 2 is a schematic diagram of the inside bottom structure of a shielding device used in an embodiment of the present invention. [Diagram 5] FIG. 2 is a structural schematic diagram of an underbeam conveying device used in an embodiment of the present invention. [Figure 6] 4A and 4B are schematic diagrams illustrating the structure of a slide restricting sleeve used in an embodiment of the present invention. [Figure 7] FIG. 7 is a schematic diagram of the cross-sectional structure shown in FIG. [Figure 8] FIG. 2 is a structural schematic diagram of a slide lock sleeve used in an embodiment of the present invention. [Figure 9] 1 is a structural schematic diagram of a beam flow extraction window of a high-energy radiation accelerator used in an embodiment of the present invention. [Figure 10] FIG. 2 is a schematic diagram of the shaft side structure of a ventilation device used in an embodiment of the present invention. [Figure 11] FIG. 4 is a schematic diagram of the left side structure of a first duct used in an embodiment of the present invention. [Figure 12] FIG. 4 is a schematic diagram of the bottom structure of a first duct used in an embodiment of the present invention. [Figure 13] FIG. 2 is a schematic diagram of the internal structure of a stabilizer used in an embodiment of the present invention.

[0018] In the figure, 1001, active shield, 1002, active maze, 1003, escape hole, 1004, active inlet, 1005, active outlet, 1006, inlet maze, 1007, outlet maze, 1008, first arcuate shielding surface, 1009, second arcuate shielding surface, 1010, reinforcing shielding block, 1011, vertical inlet segment, 1012, horizontal inlet segment, 1013, transient inlet segment, 1014, vertical outlet segment, 1015, horizontal outlet segment, 1016, transient outlet segment, 1017, hollow space, 2001, roller, 2002, transmission side plate, 2003, rotating gear, 2004, transmission chain, 2005, transmission motor, 2006, central rotating shaft, 2007, circumferential rotating drum, 2008, slide regulating sleeve, 2009, first position regulating block, 2010, second position regulating block, 2011, first fixed half frame, 2012, second fixed half frame, 2013, first fixed plate, 2014, second fixed plate, 2015, fixing bolt, 2016, first connection block, 2017, first positioning block, 2018, second connection block, 2019, second positioning block, 2020, shielding inside conveying chain, 2021, shielding outside conveying chain, 3001, first duct, 3002, second duct, 3003, first connecting horizontal pipe, 3004, first bent pipe, 3005, intermediate connecting pipe, 3006, second bent pipe, 3007, second connecting horizontal pipe, 3008, stabilizing seat, 3009, fourth duct, 3010, intake port, 3011, guide frame, 3012, seal gasket, 3013, intake device, 3014, exhaust port, 4001, high energy radiation irradiation accelerator, 4002, beam flow extraction window, 4003, container cabinet body, 4004, mounting partition plate. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] In order to clarify the technical problems, technical contents and advantageous effects of the present invention, the present invention will be described in more detail with reference to the drawings and examples below. It should be understood that the specific examples described herein are merely for the purpose of interpreting the present invention and do not limit the present invention.

[0020] With reference to Figures 1 to 10, a specific embodiment of the vehicle-mounted accelerator system provided in the present invention will now be described, which includes a container cabinet main body 4003, a high-energy radiation irradiation accelerator 4001, a shielding device, an under-beam conveying device, and a ventilation device.

[0021] An installation space was provided in the container cabinet main body 4003, with an installation partition plate 4004 provided in the horizontal direction in the center.

[0022] The high-energy radiation irradiation accelerator 4001, the shielding device, and the ventilation device are installed in the container cabinet body 4003, and the under-beam transport device is assembleable and detachable, facilitating transportation by the vehicle-mounted accelerator system. Other control assemblies of the high-energy radiation irradiation accelerator 4001 are installed on the mounting partition plate 4004, improving the integration of the device and reducing the area occupied by the device.

[0023] The shielding device is provided on the bottom surface of the container cabinet body 4003, and includes an entrance shield, an actuation shield 1001, and an exit shield. An actuation maze 1002 is provided inside the actuation shield 1001, and the actuation maze 1002 is provided with an actuation entrance 1004 and an actuation exit 1005, and the actuation entrance 1004 and the actuation exit 1005 are provided on the same side of the actuation shield 1001, and both the entrance shield and the exit shield are provided on the side wall of the actuation shield 1001, and the entrance shield and the exit shield are provided symmetrically with respect to the central axis of the actuation shield 1001. An inflow maze 1006 is provided inside the entrance shield, and the inflow maze 1006 is connected to the actuation entrance 1004, and an outflow maze 1007 is provided inside the exit shield, and the outflow maze 1007 is connected to the actuation exit 1005. The top wall of the actuation maze 1002 is provided with an escape hole 1003, and the beam flow extraction window 4002 penetrates through the escape hole 1003 and enters the actuation maze 1002. The radiation emitted from the beam flow extraction window 4002 is irradiated onto the medical materials below. The inside of the actuation maze 1002, on the side away from the actuation entrance 1004, is a first arc-shaped shielding surface 1008, and the inside wall of the actuation maze 1002 facing the first arc-shaped shielding surface 1008 is a second arc-shaped shielding surface 1009. The openings of the first arc-shaped shielding surface 1008 and the second arc-shaped shielding surface 1009 are both provided toward the entrance shield and the exit shield. Both ends of the first arc shielding surface 1008 extend to the actuation inlet 1004 and the actuation outlet 1005, respectively, and both ends of the second arc shielding surface 1009 extend to the actuation inlet 1004 and the actuation outlet 1005, respectively. Some radiation reaches the first arc shielding surface 1008 and the second arc shielding surface 1009 by being irradiated or reflected, and is reflected by the first arc shielding surface 1008 and the second arc shielding surface 1009. Until the radiation is shielded, the radiation at the first arc shielding surface 1008 is reflected to the second arc shielding surface 1009, and the radiation at the second arc shielding surface 1009 is reflected to the first arc shielding surface 1008. Thus, the amount of radiation escaping from the actuation inlet 1004 and the actuation outlet 1005 is greatly reduced, and the shielding effect of the shielding device is improved.By making the thickness of the outer wall of the active shield 1001 greater than the thickness of the entrance shield and the exit shield, the shielding effect of the active shield 1001 is strengthened, the mass of the entrance shield and the exit shield is reduced, the shield device is made lighter, and it is easier to move.

[0024] The under-beam conveying device includes a plurality of conveying chain units, and a detachable member is provided at the end of the conveying chain unit to facilitate attachment and detachment of the conveying chain unit. In actual use, it can be assembled as necessary to obtain different lengths and shapes, which is advantageous for transportation by the under-beam conveying device. At the bottom of the shielding device, an inside shielding conveying chain 2020 is provided, which includes a plurality of conveying chain units and is provided along the shapes of the inlet maze 1006, the operating maze 1002, and the outlet maze 1007. Each set of conveying chain units is individually controlled, so that the transmission speed of the conveying chain unit can be controlled with high precision for each set, which prevents the medical materials from accumulating during transportation, and realizes high-precision control of the transport speed of the medical materials. An outside shielding conveying chain 2021 is provided outside the shielding device, which includes a plurality of conveying chain units and is provided outside the container cabinet body 4003. A first end of the outside shielding conveying chain 2021 is connected to the conveying chain unit at the entrance of the inlet maze 1006, and a second end of the outside shielding conveying chain 2021 is connected to the conveying chain unit at the exit of the outlet maze 1007, the first end of the outside shielding conveying chain 2021 is provided on the front wall of the container cabinet body 4003, and the second end of the outside shielding conveying chain 2021 is provided on the rear wall of the container cabinet body 4003, and the outside shielding conveying chain 2021 is provided halfway around the outside of the container cabinet body 4003. The length and shape of the outside shielding conveying chain 2021 are set according to the actual usage situation, and the inlet and outlet of the medical materials are provided at a position of the outside shielding conveying chain 2021 away from the shielding device, thereby reducing damage to the operator caused by radiation.

[0025] The ventilation device includes a ventilation duct and an intake 3013, and the ventilation duct includes a first duct 3001, a second duct 3002, a third transition duct, and a fourth duct 3009, the front and rear ends of which are connected in sequence. The first duct 3001 is provided on the upper top wall of the shielding device. The beam flow extraction window 4002 of the high-energy radiation irradiation accelerator 4001 is provided in the shielding device along the longitudinal direction of the shielding device, and irradiates the medical materials below. The transmission direction of the medical materials is perpendicular to the beam flow extraction window 4002. The first duct 3001 is provided perpendicular to the beam flow extraction window 4002, and the lower end surface of the first duct 3001 is provided with an inlet 3010 communicating with the working labyrinth 1002, which is advantageous for the ozone-containing gas in the shielding device to enter the first duct 3001. The second duct 3002 is provided at the first end of the first duct 3001. The second duct 3002 is provided perpendicular to the first duct 3001, and the second end is a dead end to avoid leakage of the ozone-containing gas. The second duct 3002 is provided along the longitudinal direction of the shielding device, which is advantageous for reducing the volume of the device. The third transition duct connects the second duct 3002 and the fourth duct 3009, and is bent downward. Since the third transient duct has a radius, even if a small amount of radiation generated by the high energy radiation irradiation accelerator 4001 enters the ventilation duct from the intake port 3010, the radiation is reflected between the side walls of the third transient duct and attenuated, so that the radiation is prevented from entering the fourth duct 3009. The fourth duct 3009 is provided vertically upward with respect to the third transient duct, and its upper end penetrates the upper end surface of the container cabinet main body 4003. An exhaust port 3014 is provided at the upper end of the fourth duct 3009. The intake device 3013 is provided at the lower end of the fourth duct 3009, with an intake port facing the third transient duct and an exhaust port facing the fourth duct 3009, and the gas is sucked from the shielding device and discharged into the atmosphere, thereby avoiding an impact on the life safety of the operator.

[0026] Compared with the prior art, the vehicle-mounted accelerator system provided by the present invention is provided with a container cabinet body 4003, a high-energy radiation irradiation accelerator 4001, a shielding device, an under-beam transport device, and a ventilation device.

[0027] The high-energy radiation irradiation accelerator 4001, the shielding device, and the ventilation device are provided within the container cabinet body 4003, and the under-beam transport device is assembleable and detachable, facilitating transportation by the vehicle-mounted accelerator system.

[0028] The shielding device includes an entrance shield, an actuation shield 1001, and an exit shield, and the entrance shield and the exit shield are provided in the actuation shield 1001. An actuation maze 1002 is provided in the actuation shield 1001, an inflow maze 1006 is provided in the entrance shield, and an outflow maze 1007 is provided in the outflow shield. The inflow maze 1006 and the outflow maze 1007 are each connected to the actuation maze 1002. An escape hole 1003 is provided in the upper top wall of the actuation maze 1002, and the beam flow extraction window 4002 of the accelerator penetrates the escape hole 1003 and enters the actuation maze 1002. The medical materials enter the inlet maze 1006, and then enter the actuation maze 1002 through the inlet maze 1006, and the accelerator sterilizes the medical materials located in the actuation maze 1002. The medical materials are discharged from the shielding device through the outlet maze 1007. Inside the actuation maze 1002, on the side away from the actuation entrance 1004, is a first arc shielding surface 1008, and opposite to the first arc shielding surface 1008 is a second arc shielding surface 1009. The accelerator beam flow extraction window 4002 is located between the first arc shielding surface 1008 and the second arc shielding surface 1009, and most of the emitted radiation is irradiated to the medical materials below. A part of the radiation reaches the first arc-shaped shielding surface 1008 and the second arc-shaped shielding surface 1009 by being irradiated or reflected, and is reflected between the first arc-shaped shielding surface 1008 and the second arc-shaped shielding surface 1009, thereby greatly reducing the amount of radiation escaping from the working inlet 1004 and the working outlet 1005, and improving the shielding effect of the shielding device. Not only is the shielding effect ensured, but the thickness of the shielding body can be correspondingly thinned, the mass of the shielding device is reduced, and the shielding body can be moved together with the vehicle.

[0029] The under-beam conveying device includes a plurality of conveying chain units, and the end of the conveying chain unit is provided with a detachable member, which facilitates the attachment and detachment of the conveying chain unit, and can be assembled as necessary in actual use to obtain different lengths and shapes, which is advantageous for transportation by the under-beam conveying device. A shielding internal conveying chain 2020 is provided at the bottom of the shielding device, and the shielding internal conveying chain 2020 includes a plurality of conveying chain units. The shielding internal conveying chain 2020 is provided along the shapes of the inlet maze 1006, the actuation maze 1002, and the outlet maze 1007. A shielding external conveying chain 2021 is provided outside the shielding device. The shielding external conveying chain 2021 includes a plurality of conveying chain units and is provided outside the container cabinet body 4003. The first end of the outer shielding conveying chain 2021 is connected to the conveying chain unit at the entrance of the inlet maze 1006, and the second end of the outer shielding conveying chain 2021 is connected to the conveying chain unit at the exit of the outlet maze 1007. The first end of the outer shielding conveying chain 2021 is provided on the front wall of the container cabinet body 4003, and the second end of the outer shielding conveying chain 2021 is provided on the rear wall of the container cabinet body 4003. The outer shielding conveying chain 2021 is provided on the outer side of the container cabinet body 4003 in a half circle. Each set of conveying chain units is individually controlled, so that the transmission speed of the conveying chain unit can be easily controlled for each set and can be controlled with high precision, which avoids the accumulation of medical materials during transportation and realizes the control of the transport speed of medical materials with high precision. The length and shape of the outer shielding conveying chain 2021 are set according to the actual usage situation. The inlet and outlet of medical supplies are provided on the outer shielding transport chain 2021 at a position away from the shielding device, reducing damage to the operator due to radiation. The ventilation device is provided with a ventilation duct and an intake fan 3013. The ventilation duct includes a first duct 3001, a second duct 3002, a third transition duct, and a fourth duct 3009. The first duct 3001 is provided on the upper top wall of the shielding device. The first duct 3001 is provided with an intake port 3010, which is connected to the internal space of the shielding device, and the gas containing ozone in the shielded space enters the first duct 3001 through the intake port 3010. The first duct 3001 is provided perpendicular to the longitudinal direction of the shielding device and is provided on one side of the high-energy radiation irradiation accelerator 4001, which is advantageous for discharging ozone generated near the high-energy radiation irradiation accelerator 4001. The second duct 3002 is provided perpendicular to the first duct 3001 along the longitudinal direction of the shielding device, which is useful for reducing the volume of the device. The third transition duct connects the second duct 3002 and the fourth duct 3009, and is bent downward to reflect and attenuate a small amount of radiation from the high-energy radiation irradiation accelerator 4001 that escapes from the intake port 3010, thereby preventing the radiation from escaping from the fourth duct 3009 and affecting the life safety of the operator. The fourth duct 3009 is provided perpendicularly upward to the third transition duct, and prevents the ozone from being exhausted upward into the air, thereby affecting the life safety of the operator.

[0030] As a specific embodiment of the shielding device adopted in the present invention, referring to Figures 1 to 4, the distance between the outer wall of the actuated shielding 1001 and the first arc-shaped shielding surface 1008 is maintained equal, that is, the shape of the outer wall of the actuated shielding 1001 is an arc-shaped shape similar to the shape of the first arc-shaped shielding surface 1008, which is advantageous for reducing the mass of the actuated shielding 1001 and making the shielding device lighter, and is convenient for transportation.

[0031] A reinforcing shielding block 1010 is provided on the outer wall of the active shield 1001, and the reinforcing shielding block 1010 is provided at a position corresponding to the rectangular retraction hole 1003 and is used to reinforce the shielding effect against radiation.

[0032] The escape hole 1003 is provided on the central axis of the active shield 1001, and the longitudinal axis of the escape hole 1003 is aligned with the central axis of the active shield 1001, which is advantageous in reinforcing the shielding against radiation.

[0033] The entrance shield includes a vertical entrance segment 1011, a horizontal entrance segment 1012, and a transient entrance segment 1013. The transient entrance segment 1013 is connected to the actuated shield 1001, the horizontal entrance segment 1012 is connected to the transient entrance segment 1013, and the vertical entrance segment 1011 is connected to the horizontal entrance segment 1012. The horizontal entrance segment 1012 is disposed horizontally, and the vertical entrance segment 1011 is disposed perpendicular to the horizontal entrance segment 1012. The exit shield includes a vertical exit segment 1014, a horizontal exit segment 1015, and a transient exit segment 1016. The transient exit segment 1016 is connected to the actuated shield 1001, the horizontal exit segment 1015 is connected to the transient exit segment 1016, and the vertical exit segment 1014 is connected to the horizontal exit segment 1015. The horizontal exit segment 1015 is arranged horizontally, and the vertical exit segment 1014 is arranged vertically to the horizontal exit segment 1015. Due to the transition between the transitional entrance segment 1013 and the transitional exit segment 1016, the distance between the horizontal entrance segment 1012 and the horizontal exit segment 1015 can be reduced, which reduces the volume of the shielding device and reduces the mass of the entrance shield and the exit shield, which is favorable to making the shielding device lighter and more convenient to move.

[0034] As it goes away from the active shield 1001, the thickness of the outer wall of the transient inlet segment 1013 gradually decreases, the thickness of the outer wall of the transient inlet segment 1013 is greater than the thickness of the outer wall of the horizontal inlet segment 1012, the thickness of the outer wall of the horizontal inlet segment 1012 is greater than the thickness of the outer wall of the vertical inlet segment 1011. As it goes away from the active shield 1001, the thickness of the outer wall of the transient outlet segment 1016 gradually decreases, the thickness of the outer wall of the transient outlet segment 1016 is greater than the thickness of the outer wall of the horizontal outlet segment 1015, the thickness of the outer wall of the horizontal outlet segment 1015 is greater than the thickness of the outer wall of the vertical outlet segment 1014. As it goes away from the active shield 1001, the amount of radiation escaping from the active shield 1001 gradually decreases, and the wall thickness of the inlet shield and the outlet shield tend to decrease, which is advantageous to reduce the volume of the shield device and reduce the mass of the inlet shield and the outlet shield, and is convenient for making the shield device lighter and more convenient to move.

[0035] The adjacent side walls of the entrance shield and the exit shield are overlapped to reduce the volume of the shield and the mass of the entrance shield and the exit shield, which is advantageous to making the shield device lighter and easier to transport.

[0036] The width of the inflow maze 1006, the width of the first arc shielding surface 1008 and the second arc shielding surface 1009 of the actuation maze 1002, and the width of the outflow maze 1007 are equal. The transient inlet segment 1013 and the transient outlet segment 1016 approach each other as they move away from the actuation shield 1001. A hollowed-out space 1017 is formed between the side wall of the transient inlet segment 1013 close to the transient outlet segment 1016 and the side wall of the transient outlet segment 1016 close to the transient inlet segment 1013 and the actuation shield 1001, which is suitable for the flow and transportation of medical materials, reduces the volume and mass of the shield device, which is favorable for reducing the weight of the shield device, and is convenient for transportation.

[0037] The outer wall of the entrance shield, the outer wall of the operating shield 1001, and the outer wall of the exit shield are all made of three-layer shielding material, which is made of aluminum, polyethylene, and lead from inside to outside, respectively, and has the characteristics of good shielding effect and light weight, which is advantageous for reducing the mass of the shielding device and making the shielding device lighter, and is convenient for transportation.

[0038] The first arc-shaped shielding surface 1008 is a semi-cylindrical surface, and the second arc-shaped shielding surface 1009 is a semi-cylindrical surface. The first arc-shaped shielding surface 1008 and the second arc-shaped shielding surface 1009 are overlapped at their centers, which reduces the amount of radiation escaping from the active shield 1001, has good shielding effect, and is light in weight and easy to move.

[0039] As a specific embodiment of the under-beam conveying device adopted in the present invention, referring to FIG. 1 and FIG. 5 to FIG. 9, the conveying chain unit includes a plurality of conveying chain units, and the plurality of conveying chain units are assembled to form the under-beam conveying device. The conveying chain unit includes a roller 2001, a transmission side plate 2002, a rotating gear 2003, a transmission chain 2004, and a transmission motor 2005. Two sets of transmission side plates 2002 are provided opposite to each other. According to the use needs of the conveying chain unit, the transmission side plate 2002 may be a straight plate or an arc-shaped plate. A roller 2001 is provided between the two sets of transmission side plates 2002, and both ends of the roller 2001 respectively pass through the transmission side plates 2002 on both sides. A rotating gear 2003 is provided at one end of the roller 2001, and the rotating gear 2003 is provided on the side of the transmission side plate 2002 away from the roller 2001. The rollers 2001 are arranged on the same horizontal plane, and the rotating gears 2003 are arranged on the same horizontal plane. The transmission chain 2004 is fitted on the outside of the rotating gears 2003 on the same side, and meshes with the rotating gears 2003. The transmission motor 5 is arranged on the side of the transmission side plate 2002 away from the rollers 2001. A drive gear is provided at the driving end of the transmission motor 5, and the transmission chain 2004 is fitted on the outside of the drive gear. The drive end of the transmission motor 5 drives the drive gear to rotate, and the drive gear drives the transmission chain 2004 to move, and further drives the rotating gear 2003 and the rollers 2001 to rotate, thereby realizing the movement of the medical materials placed on the rollers 2001. A detachable member is provided at the end of the transmission side plate 2002, and the detachable member realizes the assembly and removal of the two conveyor chain units. The detachable member includes a first engaging block provided at a first end of the transmission side plate 2002, a second engaging block provided at a second end of the transmission side plate 2002, and a slide restricting sleeve 2008. A first engaging groove is provided at the first end of the transmission side plate 2002, and a second engaging groove is provided at the second end of the transmission side plate 2002, and the first engaging block is engaged in the second engaging groove, and the second engaging block is engaged in the first engaging groove, thereby realizing the assembly of two sets of conveyor chain units.The slide restriction sleeve 2008 is fitted to the transmission side plate 2002 and slides to the location where the first and second engaging blocks are engaged and assembled, improving the stability of the engagement between the first and second engaging blocks. By attaching and detaching the conveyor chain unit, different lengths and shapes can be obtained as needed during actual use, which is advantageous for transportation by an underbeam conveyor.

[0040] A first position restriction block 2009 is provided at a first end of the transmission side plate 2002 to restrict the sliding of the slide restriction sleeve 2008 at the first end of the transmission side plate 2002. When the slide restriction sleeve 2008 abuts against a side wall of the first position restriction block 2009, the slide restriction sleeve 2008 is disengaged from the engagement / assembly position of the first and second fastening blocks, and the first and second fastening blocks can be separated. A second position restriction block 2010 is provided at a second end of the transmission side plate 2002, and when the slide restriction sleeve 2008 abuts against a side wall of the second position restriction block 2010, the slide restriction sleeve 2008 is located at the engagement / assembly position of the first and second fastening blocks, and engages the first and second fastening blocks to restrict their positions.

[0041] A slide lock sleeve for restricting the sliding of the slide restricting sleeve 2008 is removably provided at a first end of the transmission side plate 2002. The slide lock sleeve is provided between the first position restricting block 2009 and the slide limiting sleeve 2008, and restricts the position of the slide restricting sleeve 2008 located at the position where the first engaging block and the second engaging block are engaged and assembled, thereby preventing the slide restricting sleeve 2008 from coming off from the position where the first engaging block and the second engaging block are engaged and assembled during use of the device, and improving the stability of the device.

[0042] The sliding lock sleeve includes a first fixed half frame 2011, a second fixed half frame 2012, and a locking member. A first end of the first fixed half frame 2011 and a first end of the second fixed half frame 2012 adopt a hinge connection. The first end of the first fixed half frame 2011 and the second fixed half frame 2012 can rotate relatively. A locking member is provided at a second end of the first fixed half frame 2011 and a second end of the second fixed half frame 2012, which realizes the locking of the first fixed half frame 2011 and the second fixed half frame 2012, and prevents the sliding lock sleeve from falling off during use.

[0043] The locking member includes a first fixing plate 2013 provided at a second end of the first fixed half frame 2011, a second fixing plate 2014 provided at a second end of the second fixed half frame 2012, and a fixing bolt 2015. When the first fixed half frame 2011 and the second fixed half frame 2012 are mated, the first fixing plate 2013 and the second fixing plate 2014 are brought into contact with each other, and the fixing bolt 2015 is provided so as to penetrate the first fixing plate 2013 and the second fixing plate 2014, thereby fixing the first fixed half frame 2011 and the second fixing plate 2014 together and preventing the slide lock sleeve from falling off during use.

[0044] The first engaging block includes a first connection block 2016 and a first positioning block 2017. The first connection block 2016 connects a first end of the transmission side plate 2002 to the first positioning block 2017, and is provided at the upper end of the transmission side plate 2002. The lower end surface of the first positioning block 2017 is located below the lower end surface of the first connection block 2016. The first engaging groove is formed by being surrounded by the side wall of the first end of the transmission side plate 2002, the lower end surface of the first connection block 2016, and the side wall of the transmission side plate 2002. The second engaging block includes a second connection block 2018 and a second positioning block 2019, and the second connection block 2018 connects a second end of the transmission side plate 2002 to the second positioning block 2019, and is provided at the lower end of the transmission side plate 2002. The upper end surface of the second positioning block 2019 is located above the upper end surface of the second connecting block 2018. The second engaging groove is formed by being surrounded by the side wall of the second end of the transmission side plate 2002, the upper end surface of the second connecting block 2018, and the side wall of the transmission side plate 2002. The lower end of the first positioning block 2017 is engaged in the second engaging groove, and the upper end of the second positioning block 2019 is engaged in the first engaging groove, thereby realizing the engagement between the first engaging block and the second engaging block.

[0045] The roller 2001 includes a central rotating shaft 2006 and a circumferential rotating drum 2007. The central rotating shaft 2006 is provided to pass through the axis of the circumferential rotating drum 2007, and both ends are provided to pass through the transmission side plate 2002. The circumferential rotating drum 2007 is made of aluminum material to reduce the occurrence of braking radiation. The central rotating shaft 2006 is made of iron material to improve the stability of the device.

[0046] The distance between the two sets of rollers 2001 below the beam flow extraction window 4002 of the high-energy radiation irradiation accelerator 4001 is greater than the width of the beam flow extraction window 4002 of the high-energy radiation irradiation accelerator 4001. Since the rollers 2001 are not provided directly below the beam flow extraction window 4002 of the high-energy radiation irradiation accelerator 4001, direct irradiation of the rollers 2001 with radiation is avoided, the generation of bremsstrahlung is reduced, and the stability of the device is improved.

[0047] As specific embodiments of the ventilation device provided by the present invention, reference will be made to Figs. 1 and 10 to 13. Figs.

[0048] The ventilation device includes a ventilation duct and an intake fan 3013. The ventilation duct includes a first duct 3001, a second duct 3002, a third transition duct, and a fourth duct 3009, the front and rear ends of which are connected in sequence. The first duct 3001 is provided on the upper top wall of the shielding device. The beam flow extraction window 4002 of the high-energy radiation irradiation accelerator 4001 is provided in the shielding device and is provided along the longitudinal direction of the shielding device to irradiate medical materials below. The transmission direction of the medical materials is perpendicular to the beam flow extraction window 4002. The first duct 3001 is provided perpendicular to the beam flow extraction window 4002. The lower end surface of the first duct 3001 is provided with an inlet 3010 communicating with the actuation labyrinth 1002, which is advantageous for the ozone-containing gas in the shielding device to enter the first duct 3001. The second duct 3002 is provided at the first end of the first duct 3001 and perpendicular to the first duct 3001. The second end of the first duct 3001 is a dead end to avoid the leakage of the ozone-containing gas. The second duct 3002 is provided along the longitudinal direction of the shielding device, which is advantageous for reducing the volume of the device. The third transition duct connects the second duct 3002 and the fourth duct 3009 and is bent downward. Since the third transient duct has a radius, even if a small amount of radiation generated by the high-energy radiation irradiation accelerator 4001 enters the ventilation duct from the intake port 3010, the radiation is reflected between the side walls of the third transient duct and attenuated, preventing the radiation from entering the fourth duct 3009. The fourth duct 3009 is provided vertically upward relative to the third transient duct. The intake device 3013 is provided at the lower end of the fourth duct 3009, with an intake port facing the third transient duct and an exhaust port facing the fourth duct 3009, to avoid affecting the life safety of the operator by extracting gas from the shield and discharging it into the atmosphere.

[0049] The third transition duct includes a first connecting horizontal pipe 3003, a first bent pipe 3004, a second bent pipe 3006, and a second connecting horizontal pipe 3007, which are provided in sequence. The first connecting horizontal pipe 3003 is connected to the first duct 3001. The first bent pipe 3004 is provided at the other end of the first connecting horizontal pipe 3003 and is bent downward, so that radiation is reflected between the inner wall of the first bent pipe 3004. The second bent pipe 3006 is connected to the first bent pipe 3004 and is bent in a direction away from the first connecting horizontal pipe 3003, so that radiation is reflected between the inner wall of the second bent pipe 3006, which further prevents radiation from entering the fourth duct 3009 and from affecting the intake machine 3013. The other end of the second bent pipe 3006 is connected to the second connecting horizontal pipe 3007. The second connecting pipe is connected to the fourth duct 3009. The third transition duct is provided to prevent radiation from entering the fourth duct 3009. The first duct 3001, the second duct 3002 and the third transition duct are integrally molded to prevent leakage of gas including ozone.

[0050] The first bent pipe 3004 is arc-shaped, which is favorable for gas flow, which avoids gas impact on the device, and radiation is reflected between the arc walls to reduce radiation escape. The central angle corresponding to the first bent pipe 3004 is 90°, which is convenient for connecting the second bent pipe 3006 next. The second bent pipe 3006 is arc-shaped, which is favorable for gas flow, which avoids gas impact on the device, and radiation is reflected between the arc walls to reduce radiation escape. The central angle corresponding to the second bent pipe 3006 is 90°, which is convenient for connecting the second connecting horizontal pipe 3007 next.

[0051] The intermediate connecting pipe 3005 is provided between the first bent pipe 3004 and the second bent pipe 3006. The first connecting horizontal pipe 3003 and the second connecting horizontal pipe 3007 are provided horizontally, and the intermediate connecting pipe 3005 is provided vertically. The second duct 3002, the third transition duct, and the fourth duct 3009 are provided in the same vertical plane.

[0052] A guide frame 3011 is provided on the side of the first duct 3001 facing the shielding device so as to surround the intake port 3010. The guide frame 3011 is inserted into the shielding device to guide the gas and prevent the gas from leaking through a gap between the first duct 3001 and the shielding device.

[0053] A seal gasket 3012 is provided on the outside of the guide frame 3011. The seal gasket 3012 is provided between the guide frame 3011 and the shield device to prevent gas from leaking through a gap between the first duct 3001 and the shield device.

[0054] The stabilizing seat 3008 is provided between the third transition duct and the fourth duct 3009, with a side wall connected to the third transition duct and a top wall connected to the fourth duct 3009, to improve the stability of the installation of the fourth duct 3009. The intake machine 3013 is provided in the stabilizing seat 3008 to avoid the displacement of the intake machine 3013.

[0055] The above is merely a preferred embodiment of the present invention, and is not intended to limit the present invention. Any amendments, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the scope of the present invention.

Claims

1. A container cabinet body having an installation space in the center of which an installation partition plate is provided in the horizontal direction; a high-energy radiation irradiation accelerator provided in the mounting partition plate so as to penetrate the mounting partition plate, the beam flow extraction window being located below the mounting partition plate; The shielding device is provided on the bottom surface of the container cabinet body, and includes an entrance shield, an actuation shield, and an exit shield. The entrance shield and the exit shield are provided side by side. An arc-shaped actuation maze is provided in the actuation shield. An escape angle hole is provided on the upper top wall of the actuation maze, which is suitable for the beam flow extraction window to pass through and enter the actuation maze. The same side of the actuation shield has an actuation entrance and an actuation exit that are respectively connected to the actuation maze. a shielding device having an inlet and an outlet, an inflow maze within the inlet shielding body, the inlet shielding body being disposed at the working inlet, an outflow maze within the outlet shielding body, and the outlet shielding body being disposed at the working outlet, the inflow maze, the working maze, and the outflow maze being connected to each other, and a first arcuate shielding surface is provided on an inner wall of the working maze on one side away from the working inlet and the working outlet, and a second arcuate shielding surface is provided on an inner wall on the other side; an underbeam conveying device including a plurality of conveying chain units each having a detachable member, the detachable member realizing removal and assembly of two of the conveying chain units, the plurality of conveying chain units being provided at the bottom of the shielding device, the inner shielding conveying chains being shaped to match the shapes of the inlet maze, the actuation maze and the outlet maze, the plurality of conveying chain units being provided outside the shielding device, the outer shielding conveying chains being provided halfway around the outside of the container cabinet body, the first end of which is connected to the conveying chain unit at the entrance of the inlet maze through the front wall of the container cabinet body, and the second end of which is connected to the conveying chain unit at the exit of the outlet maze through the rear wall of the container cabinet body; A ventilation device including a ventilation duct and an intake, the ventilation duct including a first duct, a second duct, a third transition duct, and a fourth duct arranged in sequence and communicating with each other, the first duct being arranged on an upper top wall of the shielding device perpendicular to a longitudinal direction of the shielding device, the first duct being provided with an intake port communicating with the operating labyrinth, the second duct being arranged perpendicular to a first end of the first duct, the first duct and the second duct being arranged in the same horizontal plane. a ventilation device in which the third transition duct has a downward curvature, the fourth duct is provided vertically upward with respect to the third transition duct, an exhaust port is provided at one end of the fourth duct remote from the third transition duct, the intake machine is provided at one end of the fourth duct close to the third transition duct, an intake port of the intake machine is provided toward the third transition duct, and an exhaust port of the intake machine is provided toward the fourth duct.

1. An on-board accelerator system comprising:

2. The rotation angle of the first arc-shaped shielding surface is 180°, the rotation angle of the second arc-shaped shielding surface is 180°, and the centers of the first arc-shaped shielding surface and the second arc-shaped shielding surface overlap each other.

2. The vehicle accelerator system according to claim 1.

3. The outer wall of the actuation shield is provided with a reinforcing shield block, and the escape square hole is provided on the central axis of the actuation shield.

2. The vehicle accelerator system according to claim 1.

4. The inlet shield includes a vertical inlet segment, a horizontal inlet segment, and a transient inlet segment, the transient inlet segment being disposed at the operational inlet, the horizontal inlet segment being disposed horizontally at the other end of the transient inlet segment, and the vertical inlet segment being disposed perpendicular to the horizontal inlet segment; the outlet shield includes a vertical outlet segment, a horizontal outlet segment, and a transient outlet segment, the transient outlet segment being disposed at the operational outlet, the horizontal outlet segment being disposed horizontally at the other end of the transient outlet segment, and the vertical outlet segment being disposed perpendicular to the horizontal outlet segment.

2. The vehicle accelerator system according to claim 1.

5. The thickness of the outer wall of the transient inlet segment gradually decreases with distance from the active shield, the thickness of the outer wall of the horizontal inlet segment is less than the thickness of the outer wall of the transient inlet segment, the thickness of the outer wall of the vertical inlet segment is less than the thickness of the outer wall of the horizontal inlet segment, the thickness of the outer wall of the transient outlet segment gradually decreases with distance from the active shield, the thickness of the outer wall of the horizontal outlet segment is less than the thickness of the outer wall of the transient outlet segment, and the thickness of the outer wall of the vertical outlet segment is less than the thickness of the outer wall of the horizontal outlet segment.

5. An on-vehicle accelerator system according to claim 4.

6. The conveying chain unit includes a roller, a transmission side plate, a rotating gear, a transmission chain, and a transmission motor, the roller is rotatably provided between two sets of the transmission side plates, the plurality of sets of the rollers are uniformly distributed along the longitudinal direction of the transmission side plates, the rotating gear is provided on the outer side of the transmission side plate, an end of the roller is provided at the center of the rotating gear, the transmission chain is hooked on and engages with the plurality of sets of the rotating gears on the same side, the transmission motor drives the transmission chain to drive and rotate the rotating gear, and the detachable member is provided at the end of the transmission side plate.

2. The vehicle accelerator system according to claim 1.

7. The detachable member includes a first engaging block, a second engaging block, and a slide restricting sleeve, the first engaging block being provided at a first end of the transmission side plate, the second engaging block being provided at a second end of the transmission side plate, a first engaging groove that is matched with the second engaging block being provided between the first engaging block and a side wall of the transmission side plate, and a second engaging groove that is matched with the first engaging block being provided between the second engaging block and the side wall of the transmission side plate, and the slide restricting sleeve is slidably provided on the transmission side plate by engaging and fitting the first engaging block and the second engaging block that face each other in two adjacent transmission side plates, and is used to lock or unlock the engaged first engaging block and the second engaging block.

7. An on-vehicle accelerator system according to claim 6.

8. The third transition duct includes a first connecting horizontal pipe, a first bent pipe, a second bent pipe, and a second connecting horizontal pipe, which are arranged in this order, the first connecting horizontal pipe connects the first duct and the first bent pipe, the first bent pipe is bent downward, the second bent pipe is bent in a direction away from the first connecting horizontal pipe, the second bent pipe connects the first bent pipe and the second connecting horizontal pipe, and the other end of the second connecting horizontal pipe is connected to the fourth duct.

2. The vehicle accelerator system according to claim 1.

9. The first bent tube is an arc-shaped tube, and the arc angle of the first bent tube is 90°; the second bent tube is an arc-shaped tube, and the arc angle of the second bent tube is 90°; 9. An on-vehicle accelerator system according to claim 8.

10. A guide frame is provided at the intake port, the guide frame is inserted into the shielding body, and a seal gasket is provided on the outside of the guide frame.

2. The vehicle accelerator system according to claim 1.

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