A fire fighting teaching device for LPG transport semi-trailer

Abstract

The present invention relates to a fire-fighting teaching device for an LPG transport semitrailer, which comprises: a tank body, inside which two partition sealing plates perpendicular to the axis of the tank body are fixedly arranged, a partition is formed between the two partition sealing plates; an emergency cut-off accessory box, which is connected with the partition through a pipeline; a mounting frame, which is used to support the tank body, a rotating driving mechanism for driving the tank body to rotate circumferentially is arranged between the mounting frame and the tank body; a fixing frame, which is arranged below the mounting frame, an angle adjusting device is arranged between the fixing frame and the mounting frame, and is used to adjust the front and rear tilt angles of the mounting frame and the tank body.

Description

Technical Field

[0001] The invention relates to fire fighting teaching equipment for an LPG transport semitrailer, and specifically belongs to the technical field of fire fighting teaching equipment. Background Art

[0002] Liquefied petroleum gas (LPG) is a transparent, low-toxic, colorless gas or yellow-brown oily liquid with a special odor. LPG tank trucks are special vehicles used to transport liquefied petroleum gas. The design pressure of the tank is 1.8-2.2MPa and the design temperature is 50℃. Currently, there are two main types of tank trucks used in China: semi-trailer tank trucks and fixed tank trucks. When an LPG transport semi-trailer has a traffic accident, it needs to be handled professionally and carefully to minimize the damage. However, current firefighters are not familiar with the internal structure and operation methods of the LPG transport semi-trailer tank. When they encounter related accidents, they often do not know how to deal with them quickly and effectively, resulting in delays in the best rescue time, which leads to a series of adverse or even serious consequences.

[0003] In view of the above problems, the present invention provides a fire-fighting teaching equipment for LPG transport semi-trailer, which is designed according to the original real transport tank, and the internal and external structures are the same as the real transport tank. It is designed with a visual window and an external lighting system, so that the specific internal and external structures of the tank can be seen. A full set of real valves, cut-off devices, and safety devices are used for practical learning, achieving a 100% real experience in vision and touch. By configuring a pressurized gas cylinder and a special joint for a fire hose, rapid liquid guiding and liquid drainage can be truly practiced; through remote control, the tank is truly simulated 0~360 degrees. °As well as the gas and liquid states of the tank in various postures in three-dimensional space such as forward and backward postures, full-scale emergency drills for abnormal conditions such as rollover and overturning can be carried out; accidental leakage simulation can be realized, including gas and liquid leakage simulation, etc.; a 0.1MPa booster device is set up to simulate abnormal conditions such as liquid spraying, jetting, and safety valve tripping; a hand-pull emergency cut-off accessory box, a hydraulic emergency cut-off accessory box and an emergency cut-off operating mechanism are set up, which can simulate the real action process of manual and hydraulic emergency cut-off devices at the same time, and operate real scenes such as valve opening and closing and emptying. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a fire-fighting teaching device for an LPG transport semi-trailer which can simulate various accidents and abnormal real scenes and conduct full-scale emergency drills.

[0005] To solve the above problems, the technical solution adopted by the present invention is:

[0006] A fire fighting teaching device for an LPG transport semitrailer, comprising:

[0007] The tank body has two compartment sealing plates vertical to the axis of the tank body fixedly disposed therein, and a compartment is formed between the two compartment sealing plates;

[0008] An emergency cut-off accessory box, which is connected to the compartment through a pipeline;

[0009] A mounting frame, used to support the tank body, a rotation drive mechanism for driving the tank body to rotate circumferentially is provided between the mounting frame and the tank body;

[0010] A fixing frame is arranged below the mounting frame, and an angle adjustment device is arranged between the fixing frame and the mounting frame for adjusting the front and rear tilt angles of the mounting frame and the tank body.

[0011] As a further improvement of the present invention, the rotary drive mechanism includes an arc-shaped or annular track arranged outside the tank body, a roller arranged on the mounting frame and a drive mechanism for driving the roller to rotate, and the roller is adapted to the track.

[0012] As a further improvement of the present invention, the angle adjustment device includes a rotating rod arranged at the left and right ends of the mounting frame, the rotating rod is arranged on the mounting frame through a bearing seat, the fixed frame is provided with a support column supporting the rotating rod, the top of the support column is provided with an arc groove adapted to the rotating rod, the mounting frame and the tank body as a whole can swing back and forth around the two rotating rods as axes respectively; the angle adjustment device also includes two lifting mechanisms arranged between the fixed frame and the mounting frame, and the two lifting mechanisms are respectively located on the left and right sides of the fixed frame.

[0013] As a further improvement of the present invention, the lifting mechanism includes a worm gear lift and a servo motor 1 that drives the worm gear lift, the worm gear lift is provided with a horizontal input shaft and a vertical screw, the bottom of the worm gear lift is hinged to a worm gear lift hinge seat fixed on the fixed frame, and the upper end of the screw is hinged to the rotating rod; the servo motor 1 is hinged to the fixed frame through a servo motor hinge seat, and the output shaft of the servo motor 1 is connected to the input shaft on the worm gear lift.

[0014] As a further improvement of the present invention, the angle adjustment device includes a suspension frame arranged on the left and right sides of the middle part of the mounting frame, and the fixed frame is provided with a bracket for supporting the suspension frame. The suspension frame and the bracket are hinged together by a hinge shaft, and the mounting frame and the tank body as a whole can swing back and forth around the hinge shaft; the angle adjustment device also includes a lifting mechanism arranged between the fixed frame and the mounting frame.

[0015] As a further improvement of the present invention, the lifting mechanism includes a telescopic cylinder hingedly arranged on the fixed frame, the cylinder rod, connecting arm and supporting arm of the telescopic cylinder are hingedly connected to each other, the other end of the connecting arm is hingedly connected to the crossbeam of the mounting frame, and the other end of the supporting arm is hingedly connected to the fixed frame.

[0016] As a further improvement of the present invention, the emergency cut-off accessory box includes a hand-pull emergency cut-off accessory box and an oil pressure emergency cut-off accessory box, the hand-pull emergency cut-off accessory box and the oil pressure emergency cut-off accessory box are connected to the bottom of the compartment through liquid pipe 1 and liquid pipe 2 respectively, the hand-pull emergency cut-off accessory box and the oil pressure emergency cut-off accessory box are connected to the top of the compartment through ventilation pipe 1 and ventilation pipe 2 respectively, and the emergency cut-off accessory box is equipped with a special joint for a fire hose.

[0017] As a further improvement of the present invention, the tank body is provided with a viewing window and an external lighting system for illuminating the interior of the tank body.

[0018] As a further improvement of the present invention, a safety valve and a manhole are provided on the top of the tank body, and an emergency cut-off operating mechanism is provided on the tank truck platform at the bottom of the right end of the tank body.

[0019] As a further improvement of the present invention, a guardrail is provided on the outside of the fire fighting teaching equipment, and an infrared detection device is provided inside the guardrail for detecting the number of people inside to prevent injuries to people caused by equipment failure.

[0020] The beneficial effects of adopting the above technical solution are:

[0021] The present invention provides a firefighting teaching equipment for LPG transport semi-trailer, which is designed according to the original real transport tank, and the internal and external structures are the same as the real transport tank. It is designed with a visual window and an external lighting system, so that the specific internal and external structures of the tank can be seen. A full set of real valves, cut-off devices, and safety devices are used for actual combat learning, and a 100% real experience in vision and touch is achieved. By configuring a booster gas cylinder and a special joint for a fire hose, the booster gas cylinder is used for pressurization during liquid guiding and liquid draining, so that rapid liquid guiding and liquid draining can be truly practiced; by remote control, the tank is truly simulated 0 The system can simulate the gas and liquid states of the tank in various postures in three-dimensional space such as ~360° and forward and backward postures, and conduct real emergency drills for abnormal conditions such as rollover and overturning; it can realize accidental leakage simulation, including gas and liquid leakage simulation, etc.; a 0.1MPa booster device is set to simulate abnormal conditions such as liquid spraying, jetting, and safety valve tripping; a hand-pull emergency cut-off accessory box, a hydraulic emergency cut-off accessory box and an emergency cut-off operating mechanism are set to simulate the real action process of manual and hydraulic emergency cut-off devices at the same time, and operate real scenes such as valve opening and closing and emptying. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a main structural schematic diagram of the present invention.

[0025] Figure 3 It is a right-side structural schematic diagram of the present invention.

[0026] Figure 4 It is a cross-sectional structural schematic diagram of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the hand-pull emergency cut-off accessory box in the present invention.

[0028] Figure 6 It is a structural schematic diagram of the oil pressure emergency cut-off accessory box in the present invention.

[0029] Figure 7 It is a structural schematic diagram of the fixing frame and the mounting frame in the present invention.

[0030] Figure 8 It is another structural schematic diagram of the fixing frame and the mounting frame in the present invention.

[0031] Fig. 9 It is a structural schematic diagram of the mounting frame and the hanging frame in the present invention.

[0032] Fig.10 It is another main structural schematic diagram of the present invention.

[0033] Fig.11 It is another right-view structural schematic diagram of the present invention.

[0034] Fig.12 It is a structural schematic diagram of the worm gear screw lift in the present invention.

[0035] Fig.13 It is a structural schematic diagram of the support column and the holder in the present invention.

[0036] Fig.14 It is a structural schematic diagram of a servo motor 1 in the present invention.

[0037] Among them: 1 tank, 2 safety valve, 3 manhole, 4 track, 5 roller, 6 support, 7 crossbeam, 8 longitudinal beam, 9 suspension frame, 10 bracket, 11 fixed frame, 12 telescopic cylinder, 13 cylinder rod, 14 support arm, 15 connecting arm, 16 hand-pull emergency cut-off accessory box, 17 oil pressure emergency cut-off accessory box, 18 pressure gauge, 19 thermometer, 20 gas phase quick connector, 21 liquid phase quick connector, 22 fire hose special connector, 231 manual emergency cut-off device, 232 hand oil pump, 24 coupling, 25 worm screw Lift hinge seat, 26 worm gear screw lift, 26-1 connecting plate 1, 27 screw, 28 input shaft, 29 bearing seat, 30 rotating rod, 31 support column, 32 seat, 33 arc groove, 34 clearance hole, 35 servo motor 1 hinge seat, 36 servo motor 1, 36-1 connecting plate 2, 37 external lighting system, 38 visual window, 39 compartment sealing plate, 40 ventilation pipe 1, 41 ventilation pipe 2, 42 liquid pipe 1, 43 liquid pipe 2, 44 servo motor 2, 45 pressurized gas cylinder, 46 emergency cut-off control mechanism. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the invention is clearly and completely described below in conjunction with specific embodiments. It should be understood that the terms "center", "vertical", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0039] The tank body 1, the mounting frame and the two ends / front and back of the fixing frame 11 in this embodiment are Figure 2 For example, it refers to Figure 2 The left and right ends of the tank 1, the mounting frame and the fixing frame 11 on both sides, Figure 3 For example, it refers to Figure 3 The left and right sides of the tank body 1; the circumferential rotation of the tank body 1 refers to the rotation with the axis of the tank body 1 as the rotation axis.

[0040] like Figure 1-Figure 14 The fire fighting teaching equipment for LPG transport semi-trailer shown in the figure comprises:

[0041] The tank body 1 is cylindrical in shape, closed at both ends, and has two partition sealing plates 39 perpendicular to the axis of the tank body 1 fixedly disposed therein. A partition is formed between the two partition sealing plates 39, and water or other liquids can be contained in the partition. The partition and water are used to simulate the tank body 1 and the liquid phase, which greatly reduces the weight of the tank body 1, facilitates the rollover and tilting of the tank body 1, and can realistically present the tilting state of the liquid phase; the emergency cut-off accessory box is arranged on the tank body 1, including a hand-pull emergency cut-off accessory box 16 and an oil pressure emergency cut-off accessory box 17, which are respectively arranged on both sides of the two ends of the tank body 1, and are connected to the partition through pipelines, and the pipelines include a vent pipe 1 40, a vent pipe 2 41, and a vent pipe 34. Liquid pipe 1 42 and liquid pipe 2 43; the hand-pull emergency cut-off accessory box 16 and the oil pressure emergency cut-off accessory box 17 are connected to the bottom of the compartment through liquid pipe 1 42 and liquid pipe 2 43 respectively, the hand-pull emergency cut-off accessory box 16 and the oil pressure emergency cut-off accessory box 17 are connected to the top of the compartment through ventilation pipe 1 40 and ventilation pipe 2 41 respectively, and a pressurized gas cylinder 45 is also provided on the outside of the tank body 1. In this embodiment, a nitrogen cylinder is used, and the pressurized gas cylinder 45 is connected to the hand-pull emergency cut-off accessory box 16 and the oil pressure emergency cut-off accessory box 17; in this embodiment, two arc-shaped or annular tracks 4 are fixedly provided on the outside of the tank body 1, and the two tracks 4 are located at both ends of the tank body 1.

[0042] A mounting frame is used to support the tank body 1. A rotation driving mechanism for driving the tank body 1 to rotate circumferentially is provided between the mounting frame and the tank body 1. The rotation driving mechanism includes an arc-shaped or annular track 4 arranged outside the tank body 1, a roller 5 arranged on the mounting frame, and a driving mechanism for driving the roller 5 to rotate. The roller 5 is adapted to the track 4. In this embodiment, the mounting frame is square and includes two cross beams 7 and two longitudinal beams 8. The tank body 1 is arranged above the mounting frame and parallel to the longitudinal beams 8. Two rollers 5 are arranged on each of the cross beams 7 through a support 6. The rollers 5 are located below both sides of the tank body 1 and are adapted to the track 4. The rollers 5 are connected to a driving mechanism. In this embodiment, the driving mechanism is a servo motor 2 44. The rollers 5 are connected to the output shaft of the servo motor 2 44. Anti-slip material is provided between the rollers 5 and the track 4 to prevent sliding between the rollers 5 and the track 4. Rubber can be fixed on the outside of the rollers 5. The tank body 1 is driven by the servo motor 2 44 to simulate rollover at any angle within 360°. In this embodiment, a synchronously rotating servo motor 2 44 is provided at each end of the mounting frame and is connected to the rollers 5. The track 4 is low in the middle and has edges on both sides. The rollers 5 are stuck in the track 4 to prevent sliding out of the track 4.

[0043] A fixing frame 11 is disposed below the mounting frame, and an angle adjustment device is disposed between the fixing frame 11 and the mounting frame for adjusting the front and rear tilt angles of the mounting frame and the tank body 1 .

[0044] As an embodiment, the angle adjustment device includes a rotating rod 30 arranged at the left and right ends of the mounting frame, the rotating rod 30 is arranged on the mounting frame through a bearing seat 29, and a support column 31 supporting the rotating rod 30 is arranged on the fixed frame 11, and an arc groove 33 adapted to the rotating rod 30 is arranged on the top of the support column 31. The mounting frame and the tank body 1 as a whole can swing back and forth around the two rotating rods 30 as axes respectively; the angle adjustment device also includes two lifting mechanisms arranged between the fixed frame 11 and the left and right ends of the mounting frame, and the two lifting mechanisms are respectively located on the left and right sides of the fixed frame 11. In this embodiment, the lifting mechanism includes a worm gear lift 26 and a servo motor 36 driving the worm gear lift 26. The worm gear lift 26 is provided with a horizontal input shaft 28 and a vertical screw 27. The bottom of the worm gear lift 26 is hinged to a worm gear lift hinge seat 25 fixed on the fixed frame 11, and the upper end of the screw 27 is hinged to the rotating rod 30; the servo motor 36 is hingedly arranged on the fixed frame 11 through a servo motor hinge seat 35, and the output shaft of the servo motor 36 is connected to the input shaft 28 on the worm gear lift 26.

[0045] In this embodiment, the lifting mechanism includes two worm gear screw lifts 26, and the worm gear screw lifts 26 are arranged on both sides of the end of the fixed frame 11. A connecting plate 26-1 is provided at the bottom of the worm gear screw lift 26, and the connecting plate 26-1 is hinged to the worm gear screw lift hinge seat 25 fixed on the fixed frame 11. The rotating rod 30 is arranged on the crossbeam 7 at the end of the mounting frame through a bearing seat 29; the middle part of the end of the fixed frame 11 is hinged to the connecting plate 2 36-1 fixed on the servo motor 1 36 through a servo motor hinge seat 35, and the servo motor 1 36 is a double-output shaft motor, and its two output shafts are connected to the input shafts 28 on the two worm gear screw lifts 26 at the same end of the fixed frame 11 through couplings 24 respectively; the support column 31 is fixedly arranged at both ends of the fixed frame 11, and one end is provided with two, which are located between the worm gear screw lift hinge seat 25 and the servo motor hinge seat 35, and a holder 32 is fixedly arranged on the support column 31 by bolts, and an arc groove 33 adapted to the rotating rod 30 is arranged on the top of the holder 32, and a clearance hole 34 corresponding to the output shaft of the servo motor 36 is opened on the support column 31. When adjusting the front and rear tilt angles of the mounting frame and the tank body 1, the servo motor 36 at one end of the fixing frame 11 drives the screw 27 of the worm gear screw lift 26 to rise and fall, thereby driving the mounting frame and the tank body 1 at this end to rise and fall, and the other end of the mounting frame and the tank body 1 rotates with the rotating rod 30 clamped in the arc groove 33 as the rotating axis (the servo motor 36 at this end does not work), thereby adjusting the tilt angle of the mounting frame and the tank body 1, simulating the adjustment of the tilt angle of the tank body 1, simulating the gas phase and liquid phase states of the tank body 1 in various postures, and conducting full-scale emergency drills for abnormal conditions such as rollover and overturning. The two worm gear screw lift hinge seats 25 at the same end of the fixed frame 11 coincide with the rotation axis of the hinge at the hinge of the servo motor hinge seat 35. When the inclination angle of the mounting frame and the tank body 1 is adjusted, the servo motor 36 will rotate synchronously with the worm gear screw lift 26. By setting the clearance hole 34, the output shaft of the servo motor 36 can be prevented from interfering with the support column 31.

[0046] As another embodiment, the angle adjustment device includes a suspension frame 9 arranged on the left and right sides of the middle of the mounting frame, and a bracket 10 for supporting the suspension frame 9 is arranged on the fixed frame 11. Two brackets 10 are fixed on each side of the suspension frame 9. The suspension frame 9 and the bracket 10 are hinged together by a hinge shaft, and the mounting frame and the tank body as a whole can swing back and forth around the hinge shaft. The angle adjustment device also includes a lifting mechanism arranged between the fixed frame 11 and the mounting frame, and the lifting mechanism includes a telescopic cylinder 12 hingedly arranged on the fixed frame 11, and the cylinder rod 13, connecting arm 15 and support arm 14 of the telescopic cylinder 12 are hinged together, and the other end of the connecting arm 15 is hinged to the crossbeam 7 of the mounting frame, and the other end of the support arm 14 is hinged to the fixed frame 11.

[0047] The mounting frame and the tank body 1 can rotate with the hinge axis at the hinge of the bracket 10 and the suspension frame 9 as the rotating axis. When adjusting the front and rear tilt angles of the mounting frame and the tank body 1, the telescopic cylinder 12 is telescoped to change the states of the connecting arm 15 and the supporting arm 14, and the mounting frame and the tank body 1 are driven to tilt, thereby adjusting the tilt angle of the mounting frame and the tank body 1, and performing gas phase and liquid phase states of the tank body 1 in various postures, and conducting full-scale emergency drills for abnormal conditions such as rollover and overturning.

[0048] The hand-pull emergency cut-off accessory box 16 and the oil pressure emergency cut-off accessory box 17 are respectively arranged on both sides of the tank body 1. The hand-pull emergency cut-off accessory box 16 is provided with a pressure gauge 18, a thermometer 19, a gas phase quick-release joint 20, a liquid phase quick-release joint 21 and a manual emergency cut-off device 231. The pressure gauge 18 and the thermometer 19 are connected to the compartment. The gas phase quick-release joint 20 and the liquid phase quick-release joint 21 are both provided with a special joint 22 for a fire hose. The oil pressure emergency cut-off accessory box 17 is provided with a pressure gauge 18, a thermometer 19, a gas phase quick-release joint 20, a liquid phase quick-release joint 21 and a hand-cranked oil pump 232. The pressure gauge 18 and the thermometer 19 are connected to the compartment. The gas phase quick-release joint 20 and the liquid phase quick-release joint 21 are both provided with a special joint 22 for a fire hose. The gas phase quick-release connector 20 is connected to the top of the compartment through a vent pipe 1 40 and a vent pipe 2 41 , respectively, and the liquid phase quick-release connector 21 is connected to the bottom of the compartment through a liquid pipe 1 42 and a liquid pipe 2 43 , respectively.

[0049] In this embodiment, the tank body 1 has the same diameter as the real transport tank body and is shorter than the real transport tank body. The real transport tank body is cut and sealed. All structures in the real transport tank body are arranged in the tank body 1, but the longitudinal intervals are arranged to compress the space accordingly. A visual window 38 and an external lighting system 37 for illuminating the interior of the tank body 1 are provided at the left end of the tank body 1. It is designed according to the original real transport tank body, and the internal and external structures are the same as the real transport tank body. It is designed with a visual window 38 and an external lighting system 37, so that the specific internal and external structures of the tank body 1 can be seen. A full set of real valves, cut-off devices, and safety devices are used for practical learning, achieving a 100% real experience in terms of vision and touch. By configuring a booster gas cylinder 45 and a special joint 22 for a fire hose, the booster gas cylinder 45 is used to increase the pressure during liquid conduction and drainage. Equipping the fire truck with a special joint 22 for a fire hose speeds up the speed of liquid conduction and drainage, and allows for real practice of rapid liquid conduction and drainage, etc.; when the tank body 1 is overturned by less than 90°, the booster gas cylinder 45 is connected to the gas phase quick connector 20 for pressurization, and the liquid phase quick connector 21 is connected to the special joint 22 for fire hose for liquid conduction and drainage; when the tank body 1 is overturned by more than 90°, the booster gas cylinder 45 is connected to the liquid phase quick connector 21 for pressurization, and the gas phase quick connector 20 is connected to the special joint 22 for fire hose for liquid conduction and drainage.

[0050] The servo motor 1 36 and the servo motor 2 44 are electrically connected to the controller respectively, and through remote control, the gas phase and liquid phase states of the tank body in various postures of the tank body in three-dimensional space postures such as 0~360° and forward tilt, backward tilt, etc. are truly simulated, and a full-scale emergency drill for abnormal conditions such as rollover and overturning is carried out. Accidental leakage simulation can also be realized, including gas phase and liquid phase leakage simulation, etc. The ventilation pipe 1 40, ventilation pipe 2 41, liquid pipe 1 42 and liquid pipe 2 43 are provided with branch pipes and valves. By controlling the opening of the valves, gas phase and liquid phase leakage simulation can be realized; the booster gas cylinder 45 is connected to the gas phase quick-release connector 20, and a 0.1MPa booster device is provided to make the compartment air pressure 0.1MPa, which can simulate abnormal conditions such as liquid spraying, jetting, and safety valve tripping. Liquid spraying and jetting are achieved by controlling the opening of the valves on the ventilation pipe 1 40, ventilation pipe 2 41, liquid pipe 1 42 and liquid pipe 2 43. The safety valve tripping requires that the tripping pressure of the safety valve 2 be set in advance to be lower than 0.1MPA. When the given pressure is 0.1MPa, the safety valve 2 automatically trips.

[0051] The top of the tank body 1 is provided with a safety valve 2 and a manhole 3. The tanker platform at the bottom of the right end of the tank body 1 is provided with an emergency cut-off operating mechanism 46, and a wave-breaking plate is provided inside. By setting the hand-pull emergency cut-off accessory box 16, the oil pressure emergency cut-off accessory box 17 and the emergency cut-off operating mechanism 46 (controlled manually or by oil pressure), the real action process of the manual and oil pressure emergency cut-off devices can be simulated at the same time, and the real scenes such as valve opening and closing and emptying can be operated. In addition, the emergency cut-off accessory box and the emergency cut-off operating mechanism 46 can also be controlled by pneumatics to simulate pneumatic control. Different pipelines in the tank body 1 and the pull emergency cut-off accessory box 16 and the oil pressure emergency cut-off accessory box 17 are distinguished by different colors.

[0052] A guardrail is arranged outside the fire fighting teaching equipment, and an infrared detection device is arranged inside the guardrail for detecting the number of people inside to prevent injuries to people caused by failure when the equipment adjusts its posture.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fire fighting teaching device for LPG transport semi-trailer, characterized in that: It includes: The tank body (1) has two compartment sealing plates (39) disposed inside the tank body (1) and perpendicular to the axis of the tank body (1), with a compartment formed between the two compartment sealing plates (39); An emergency cut-off accessory box, which is connected to the compartment through a pipeline; A mounting frame, used for supporting the tank body (1), wherein a rotation driving mechanism for driving the tank body (1) to rotate in a circumferential direction is provided between the mounting frame and the tank body (1); the rotation driving mechanism comprises an arc-shaped or annular track (4) arranged outside the tank body (1), a roller (5) arranged on the mounting frame, and a driving mechanism for driving the roller (5) to rotate, wherein the roller (5) is adapted to the track (4); A fixing frame (11) is arranged below the mounting frame, and an angle adjustment device is arranged between the fixing frame (11) and the mounting frame, for adjusting the front and rear tilt angles of the mounting frame and the tank body (1); The angle adjustment device comprises rotating rods (30) arranged at the left and right ends of the mounting frame, the rotating rod (30) being arranged on the mounting frame via a bearing seat (29), the fixed frame (11) being provided with a support column (31) supporting the rotating rod (30), the top of the support column (31) being provided with an arc-shaped groove (33) adapted to the rotating rod (30), the mounting frame and the tank body (1) as a whole being able to swing forward and backward around the two rotating rods (30) as axes; the angle adjustment device further comprises two lifting mechanisms arranged between the fixed frame (11) and the mounting frame, the two lifting mechanisms being respectively located on the left and right sides of the fixed frame (11); the lifting mechanisms comprise A worm gear screw lift (26) and a servo motor (36) for driving the worm gear screw lift (26), wherein the worm gear screw lift (26) is provided with a horizontal input shaft (28) and a vertical screw (27), the bottom of the worm gear screw lift (26) is hinged to a worm gear screw lift hinge seat (25) fixed on the fixed frame (11), and the upper end of the screw (27) is hinged to the rotating rod (30); the servo motor (36) is hinged to the fixed frame (11) through the servo motor hinge seat (35), and the output shaft of the servo motor (36) is connected to the input shaft (28) on the worm gear screw lift (26); or, The angle adjustment device comprises a suspension frame (9) arranged on the left and right sides of the middle of the mounting frame, a bracket (10) for supporting the suspension frame (9) is arranged on the fixed frame (11), the suspension frame (9) and the bracket (10) are hinged together through a hinge shaft, and the mounting frame and the tank body (1) as a whole can swing forward and backward around the hinge shaft; the angle adjustment device also comprises a lifting mechanism arranged between the fixed frame (11) and the mounting frame; the lifting mechanism comprises a telescopic cylinder (12) hingedly arranged on the fixed frame (11), the cylinder rod (13), the connecting arm (15) and the supporting arm (14) of the telescopic cylinder (12) are hinged together, the other end of the connecting arm (15) is hingedly connected to the crossbeam (7) of the mounting frame, and the other end of the supporting arm (14) is hingedly connected to the fixed frame (11).

2. The fire fighting teaching equipment for LPG transport trailer according to claim 1, characterized in that: The emergency cut-off accessory box comprises a hand-pull emergency cut-off accessory box (16) and a hydraulic emergency cut-off accessory box (17). The hand-pull emergency cut-off accessory box (16) and the hydraulic emergency cut-off accessory box (17) are connected to the bottom of the compartment via a first liquid pipe (42) and a second liquid pipe (43), respectively. The hand-pull emergency cut-off accessory box (16) and the hydraulic emergency cut-off accessory box (17) are connected to the top of the compartment via a first ventilation pipe (40) and a second ventilation pipe (41), respectively. The emergency cut-off accessory box is equipped with a special joint (22) for a fire hose.

3. The fire fighting teaching equipment for LPG transport trailer according to claim 1, characterized in that: The tank body (1) is provided with a visual window (38) and an external lighting system (37) for illuminating the interior of the tank body (1).

4. The fire fighting teaching equipment for LPG transport trailer according to claim 1, characterized in that: A safety valve (2) and a manhole (3) are provided on the top of the tank body (1), and an emergency shutoff operating mechanism (46) is provided on the tank truck platform at the bottom of the right end of the tank body (1).

5. The fire fighting teaching equipment for LPG transport semi-trailer according to claim 1, characterized in that: A guardrail is arranged outside the fire fighting teaching equipment, and an infrared detection device is arranged inside the guardrail for detecting the number of people inside to prevent injuries caused by equipment failure.

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