Suction rescue assembly

Abstract

The present disclosure provides a suction rescue unit, characterized in that comprising: a suction truck configured to perform a suction operation, including a suction truck body, an arm support, a suction head and an arm support driving device, a first end of the arm support being movably connected to the suction truck body, the suction head being installed at a second end of the arm support and being capable of moving with the arm support, the arm support driving device being configured to drive the arm support to move relative to the suction truck body; a detection device configured to detect a distance L between a distal end of the suction head and a trapped person; and a suction truck controller being in communication connection with the detection device and the arm support driving device and being configured to: if L≤L1, generate an arm support control instruction, and the arm support driving device moves the distal end of the suction head away from the trapped person in response to the arm support control instruction, wherein L1 represents a first preset distance value. The suction rescue unit provided by the present disclosure can reduce the risk of secondary injury to the trapped person.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of engineering machinery, in particular to a suction rescue unit. BACKGROUND

[0002] Mud burying accidents caused by geological disasters such as earthquakes and mudslides often bury people. During rescue, on the one hand, the rescue area is large, the number of trapped personnel is large, and the burying depth is deep, on the other hand, the rescue window period is short, and the environment is complex. The 72 hours after the accident is the key period for rescuing lives.

[0003] At present, the rescue efficiency of the fire rescue team in cleaning the burying objects above the trapped personnel is low, and the burying objects above the buried personnel are difficult to quickly remove. The conventional mechanical equipment (excavators, loaders, bulldozers, etc.) implements rescue at close range, and the contact of large load machinery has the risk of secondary injury (collision, extrusion, etc.) to the buried personnel, which is only suitable for the periphery of rescue. The labor intensity of the conventional manual tool cleaning or manual cleaning method is large, the efficiency is low, and in the accident site, secondary collapse often occurs, which poses a great safety risk to the rescue personnel.

[0004] In order to quickly and safely remove the burying objects, special suction rescue equipment needs to be used on the accident site to perform suction work on the burying objects. However, the suction equipment lacks safety protection measures when performing burying object suction rescue, and if the operation is not careful, it is easy to cause secondary injury to the trapped personnel. SUMMARY

[0005] The purpose of the present disclosure is to provide a suction rescue unit to reduce the risk of secondary injury to trapped personnel.

[0006] The present disclosure provides a suction rescue unit, comprising:

[0007] A pipe trailer configured to perform suction work, comprising a pipe trailer body, an arm support, a suction head, and an arm support driving device, a first end of the arm support being movably connected to the pipe trailer body, the suction head being installed at a second end of the arm support and being capable of moving with the arm support, and the arm support driving device being configured to drive the arm support to move relative to the pipe trailer body;

[0008] A detection device configured to detect the distance L between the tip of the suction head and the trapped personnel; and

[0009] A pipe trailer controller in communication connection with the detection device and the arm support driving device and configured to: if L≤L1, generate an arm support control instruction, and the arm support driving device moves the tip of the suction head away from the trapped personnel in response to the arm support control instruction, wherein L1 represents a first preset distance value.

[0010] According to some embodiments of the present disclosure,

[0011] The boom drive device comprises a boom control valve and a boom drive cylinder, the boom drive cylinder is connected with the boom drive, and the boom control valve is arranged in the hydraulic system of the pipe trailer and is configured to control the action of the movable part of the boom drive cylinder to drive the boom to move relative to the pipe trailer body;

[0012] The boom control valve is communicatively connected with the pipe trailer controller and is configured to respond to the boom control instruction to lift the second end of the boom relative to the pipe trailer body until L>L1.

[0013] According to some embodiments of the present disclosure,

[0014] The suction rescue assembly comprises a suction pipe for conveying the suctioned material, the suction head is rotatably mounted on the second end of the boom around its own axis and connected with the suction pipe, and the pipe trailer comprises a first suction head drive device, the first suction head drive device is connected with the suction head and is configured to drive the suction head to rotate around its own axis to agitate the material at the position of the suction head;

[0015] The pipe trailer controller is communicatively connected with the first suction head drive device and is configured to: if L≤L2, generate a first suction head control instruction, the first suction head drive device responds to the first suction head control instruction to prevent the suction head from rotating around its own axis, and / or if L2

[0016] According to some embodiments of the present disclosure, the suction rescue assembly comprises a suction pipe for conveying the suctioned material, the pipe trailer comprises a plurality of suction heads, the suction pipe is selectively connected with one of the plurality of suction heads, and the plurality of suction heads comprises a flexible suction head and a rigid suction head.

[0017] According to some embodiments of the present disclosure, the suction rescue unit comprises an alarm device, the trailer controller is in communication connection with the alarm device and is configured to: if L≤L3, generate a prompt instruction, the alarm device issues an alarm information in response to the prompt instruction, the alarm information is used to indicate the distance L, and / or the alarm information is used to indicate that the flexible suction head is connected to the suction pipe, wherein L3 represents a third preset distance value, and L1

[0018] According to some embodiments of the present disclosure,

[0019] The trailer comprises a switching component and a second suction head driving device, the switching component is movably arranged between a first position and a second position, the flexible suction head and the rigid suction head are mounted on the switching component, in the first position, the flexible suction head is connected with the suction pipe, in the second position, the rigid suction head is connected with the suction pipe, the second suction head driving device is drivingly connected with the switching component and is configured to drive the switching component to move between the first position and the second position.

[0020] The trailer controller is in communication connection with the second suction head driving device and is configured to: if L≤L3, generate a first switching instruction, the second suction head driving device moves the switching component to the first position in response to the first switching instruction, and / or if L>L3, generate a second switching instruction, the second suction head driving device moves the switching component to the second position in response to the second switching instruction, wherein L3 represents a third preset distance value, and L1

[0021] According to some embodiments of the present disclosure, comprising:

[0022] The trailer is configured to collect the material sucked by the trailer, the trailer has a material inlet, the trailer comprises a material inlet control valve arranged at the material inlet, the material inlet control valve is configured to adjust the opening degree of the material inlet; and

[0023] The trailer controller is in communication connection with the detection device and the material inlet control valve and is configured to: if L≤L2, generate an opening degree control instruction, the material inlet control valve reduces the opening degree of the material inlet to a preset opening degree value in response to the opening degree control instruction, wherein L2 represents a second preset distance value, and L1

[0024] According to some embodiments of the present disclosure, comprising:

[0025] The power vehicle comprises a fan and a fan driving device, the fan is configured to provide suction power to the trailer, the fan driving device is drivingly connected with the fan and is configured to drive the fan to rotate; and

[0026] The power vehicle controller is in communication connection with the detection device and the fan driving device, and is configured to: if L≤L1, generate a first fan control instruction, the fan driving device reduces the rotating speed of the fan to a third preset rotating speed value R1 in response to the first fan control instruction, and / or, if L1

[0027] In the suction rescue unit provided by the present disclosure, the detection device can detect the distance L between the end of the suction head and the trapped person. In the state of L≤L1, the boom can drive the end of the suction head away from the trapped person, thereby reducing the risk of secondary injury to the trapped person caused by the suction head touching the trapped person, and facilitating effective protection of the safety of the trapped person.

[0028] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments thereof, which description should be taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which are included to provide a further understanding of the present disclosure, constitute a part of this application and illustrate exemplary embodiments of the present disclosure and the description thereof serve to explain the present disclosure and do not limit the present disclosure in any manner. In the drawings:

[0030] Figure 1 A schematic diagram of the working principle of the suction rescue unit of some embodiments of the present disclosure.

[0031] Figure 2 A schematic diagram of the structure of the towed pipe vehicle of some embodiments of the present disclosure.

[0032] Figure 3 A schematic diagram of the control system of the suction rescue unit of some embodiments of the present disclosure.

[0033] Figure 4 A schematic diagram of the control principle of the suction rescue unit of some embodiments of the present disclosure.

[0034] Figures 1 to 4 In the drawings, the reference numerals represent respectively:

[0035] 1, power vehicle; 11, fan driving device;

[0036] 2, material vehicle; 21, material inlet control valve;

[0037] 3. A trailer; 30. Trailer body; 31. Boom; 311. First boom section; 312. Second boom section; 32. Suction head assembly; 321. Suction head; 322. Connection pipe; 331. Boom control valve; 332. Boom drive cylinder; 3321. First boom drive cylinder; 3322. Second boom drive cylinder; 34. First suction head drive;

[0038] 4. Suction pipe;

[0039] 5. Cable;

[0040] 61. Power car controller; 62. Car controller; 63. Trailer controller;

[0041] 7. Detection device; 71. Radar life detector;

[0042] 8. Alarm device; 81. Buzzer; 82. Sound and light alarm;

[0043] 9. Camera. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in combination with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present disclosure.

[0045] Unless otherwise specifically stated, the relative arrangements of parts and steps, numerical expressions, and numerical values set forth in the various examples herein are not meant to limit the scope of the present disclosure. Also, it is to be understood that the drawings are not necessarily drawn to scale, with the emphasis generally being placed upon illustrating the principles of the present disclosure. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but rather can be summarily discussed in view of their close relations to the present disclosure. In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation on the scope of the exemplary embodiments. Thus, other example embodiments can have different values. It is noted that like references and letters designate like items throughout the following drawings, and thus once an item is defined in one drawing, further discussion of the same item in subsequent drawings can be omitted.

[0046] In the description of the present disclosure, it should be understood that the use of the words "first", "second" and the like words of similar meaning to define elements is merely for the convenience of distinguishing the corresponding elements, and the above words do not have special meanings unless otherwise stated, and therefore cannot be understood as limiting the protection scope of the present disclosure.

[0047] In the description of the present disclosure, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and in the absence of the opposite description, these orientation words do not indicate and imply that the indicated device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the protection scope of the present disclosure; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component itself.

[0048] Reference Figures 1 to 4 Some embodiments of the present disclosure provide a suction rescue unit, comprising a tow truck 3, a detection device 7 and a tow truck controller 63.

[0049] The tow truck 3 is configured to perform a suction operation, comprising a tow truck body 30, an arm support 31, a suction head 321 and an arm support driving device, the first end of the arm support 31 is movably connected to the tow truck body 30, the suction head 321 is installed at the second end of the arm support 31 and can move with the arm support 31, and the arm support driving device is configured to drive the arm support 31 to move relative to the tow truck body 30.

[0050] The detection device 7 is configured to detect the distance L between the end of the suction head 321 and the trapped person.

[0051] The tow truck controller 63 is in communication connection with the detection device 7 and the arm support driving device and is configured to: if L≤L1, generate an arm support control instruction, and the arm support driving device moves the end of the suction head 321 away from the trapped person in response to the arm support control instruction, wherein L1 represents a first preset distance value.

[0052] Optionally, with reference to Figure 1 The suction rescue unit comprises a power vehicle 1, a material truck 2 and a power generation system. The power vehicle 1 is configured to provide suction power to the tow truck 3. The material truck 2 is configured to collect the material sucked by the tow truck 3. The power generation system is arranged at the rear of the material truck 2 and provides driving power for the tow truck 3 through a cable 5 wound on a reel at one end.

[0053] Optionally, with reference to Figure 2, the pipe trailer 3 comprises a suction head assembly 32, the suction head assembly 32 comprises a suction head 321 and a connecting pipe 322, two ends of the connecting pipe 322 are connected with the suction head 321 and the second end of the arm support 31 respectively, and the suction head 321 is installed at the second end of the arm support 31 through the connecting pipe 322. Optionally, the suction head 321 can be detachably connected with the connecting pipe 322 through bolts.

[0054] Optionally, the arm support 31 is composed of a plurality of arm segments, for example, referring to Figure 2 , the arm support 31 comprises a first arm segment 311 and a second arm segment 312, the first end of the first arm segment 311 is hinged with the pipe trailer body 30, the second end of the first arm segment 311 and the first end of the second arm segment 312 are hinged, and the suction head 321 is rotatably arranged relative to the second end of the second arm segment 312.

[0055] Optionally, referring to Figures 2 to 4 , the detection device 7 comprises a radar life detector 71. The radar life detector 71 is installed at the second end of the arm support 31. The radar life detector 71 can detect the position of the trapped person, and obtain the distance L between the end of the suction head 321 and the trapped person according to the normal height range of the person and the body posture of the trapped person.

[0056] Optionally, referring to Figure 2 , the suction rescue device comprises a camera 9, the camera 9 is installed at the second end of the arm support 31 and is configured to obtain images of the position where the pipe trailer 3 is located. Optionally, the suction rescue system comprises a display, the display is arranged at the operating position of the operator and is signal-connected with the camera 9 to display the images obtained by the camera 9. The pipe trailer controller 63 can make a more comprehensive and accurate judgment on the position of the trapped person in combination with the detection result of the radar life detector 71 and the images obtained by the camera 9.

[0057] In the suction rescue unit provided by the embodiments of the present disclosure, the detection device 7 can detect the distance L between the end of the suction head 321 and the trapped person, and in the state of L≤L1, the arm support 31 can drive the end of the suction head 321 away from the trapped person, thereby reducing the risk of secondary injury to the trapped person caused by the suction head 321 touching the trapped person, and facilitating the effective protection of the safety of the trapped person.

[0058] In some embodiments, the arm support driving device comprises an arm support control valve 331 and an arm support driving oil cylinder 332, the arm support driving oil cylinder 332 is drivingly connected with the arm support 31, and the arm support control valve 331 is arranged in the hydraulic system of the pipe trailer 3 and is configured to control the action of the moving part of the arm support driving oil cylinder 332 to drive the arm support 31 to move relative to the pipe trailer body 30. The arm support control valve 331 is communicatively connected with the pipe trailer controller 63 and is configured to respond to the arm support control instruction to lift the second end of the arm support 31 relative to the pipe trailer body 30 until L>L1.

[0059] Optionally, referring to Figure 2 , the arm drive oil cylinder 332 includes a first arm drive oil cylinder 3321 and a second arm drive oil cylinder 3322, the first arm drive oil cylinder 3321 is drivingly connected with the first arm section 311 and is configured to drive the first arm section 311 to rotate relative to the pipe trailer vehicle body 30, and the second arm drive oil cylinder 3322 is drivingly connected with the second arm section 312 and is configured to drive the second arm section 312 to rotate relative to the first arm section 311. Under the action of the first arm drive oil cylinder 3321 and the second arm drive oil cylinder 3322, the arm 31 can perform a luffing action to adjust the position of the suction head 321. Optionally, the arm control valve 331 includes a first arm control valve for controlling the action of the first arm drive oil cylinder 3321 and a second arm control valve for controlling the action of the second arm drive oil cylinder 3322. Depending on the number of arm sections of the arm 31, the arm drive device can include more or fewer arm drive oil cylinders and corresponding arm control valves.

[0060] In the present disclosure, the first preset distance value L1 can be used to represent the minimum distance value to ensure the safety of the trapped person. In order to balance the rescue efficiency and the safety of the trapped person, more preset distance values can be set to control different execution components in the suction rescue system to perform corresponding actions in different distance ranges.

[0061] The control principle of the suction rescue system of some embodiments of the present disclosure will be further described below. Figures 1 to 4

[0062] In some embodiments, the suction rescue unit includes a suction pipe 4 for conveying the suctioned material, the suction head 321 is rotatably mounted to the second end of the arm 31 about its own axis and connected with the suction pipe 4, and the pipe trailer 3 includes a first suction head drive device 34 drivingly connected with the suction head 321 and configured to drive the suction head 321 to rotate about its own axis to agitate the material at the position of the suction head 321. The pipe trailer controller 63 is communicatively connected with the first suction head drive device 34 and configured to: if L≤L2, generate a first suction head control instruction, the first suction head drive device 34 responds to the first suction head control instruction to prevent the suction head 321 from rotating about its own axis, and / or if L2L3, generate a second suction head control instruction, the first suction head drive device 34 responds to the second suction head control instruction to make the suction head 321 rotate about its own axis at a first preset rotation speed value r1, and / or if L>L3, generate a third suction head control instruction, the first suction head drive device 34 responds to the third suction head control instruction to make the suction head 321 rotate about its own axis at a second preset rotation speed value r2, wherein L2 represents a second preset distance value, L3 represents a third preset distance value, L1L2, r1

[0063] Optionally, referring to Figure 3 and Figure 4 , the trailer controller 63 is configured to generate the first suction head control instruction if L1

[0064] Optionally, the first suction head driving device 34 comprises an electric motor, or the first suction head driving device 34 comprises a hydraulic motor and a motor control valve for controlling the rotation of the hydraulic motor, and the trailer controller 63 is communicatively connected to the motor control valve.

[0065] In the above embodiments, in the state of L≤L2, the first suction head driving device 34 can prevent the suction head 321 from rotating around its own axis, thereby preventing secondary injury to the trapped person when the end of the suction head 321 is relatively close to the trapped person; in the states of L2

[0066] In some embodiments, the suction rescue unit comprises a suction pipe 4 for conveying the suctioned material, the trailer 3 comprises a plurality of suction heads 321, the suction pipe 4 is selectively connected to one of the plurality of suction heads 321, and the plurality of suction heads 321 comprises flexible suction heads and rigid suction heads.

[0067] The flexible suction head can be made of elastic materials such as rubber, and the rigid suction head can be made of materials that are not easy to deform, such as metal. Optionally, the rigid suction head comprises a scraper blade, and / or the rigid suction head comprises a toothed structure. When suctioning the buried objects on the trapped person, the rigid suction head can rotate around its own axis and stir the material under the driving of the first suction head driving device 34, so as to loosen the blocky material and other materials such as hardened soil, thereby facilitating rapid suction of the material and improving the rescue efficiency.

[0068] In some embodiments, the suction rescue unit comprises an alarm device 8, the trailer controller 63 is communicatively connected to the alarm device 8 and is configured to generate a prompt instruction if L≤L3, the alarm device 8 issues an alarm information in response to the prompt instruction, and the alarm information is used to indicate the distance L and / or the alarm information is used to indicate that the flexible suction head is connected to the suction pipe 4, wherein L3 represents a third preset distance value, and L1

[0069] Optionally, referring to Figure 3 and Figure 4 , the trailer controller 63 is configured to generate the first suction head control instruction if L2

[0070] Optionally, the alarm device 8 comprises at least one of a buzzer 81 and a sound-light alarm 82 to provide a sound alarm signal or a sound-light alarm signal.

[0071] In the above embodiment, when L≤L3, the alarm device 8 is triggered to issue the alarm information, which can prompt the operator that the trapped person has been detected at this time, and the end of the suction head 321 is close to the trapped person, and can prompt the replacement of the suction head 321 connected with the suction pipe 4 with a flexible suction head to prevent harm to the trapped person.

[0072] Of course, the alarm device 8 is not limited to issuing the alarm information in response to the control instruction generated by the trailer controller 63 when L2

[0073] Optionally, the suction rescue unit comprises a display, the display is in communication connection with the trailer controller 63, and the trailer controller 63 is configured to make the display display alarm prompt information, such as numerical information of the distance L and image and text information for reminding, when the alarm device 8 issues the alarm signal.

[0074] In some embodiments, the trailer 3 comprises a switching component and a second suction head driving device, the switching component is movably arranged between a first position and a second position, the flexible suction head and the rigid suction head are mounted on the switching component, in the first position, the flexible suction head is connected with the suction pipe 4, in the second position, the rigid suction head is connected with the suction pipe 4, the second suction head driving device is in driving connection with the switching component and is configured to drive the switching component to move between the first position and the second position. The trailer controller 63 is in communication connection with the second suction head driving device and is configured to: if L≤L3, generate a first switching instruction, the second suction head driving device moves the switching component to the first position in response to the first switching instruction, and / or, if L>L3, generate a second switching instruction, the second suction head driving device moves the switching component to the second position in response to the second switching instruction, wherein L3 represents a third preset distance value, L1

[0075] Optionally, as an alternative to the detachable connection of the plurality of suction heads 321 with the connecting pipe 322 by bolts, the switching component is rotatably arranged relative to the connecting pipe 322 between the first position and the second position, in the first position, the flexible suction head is in butt joint with the end of the connecting pipe 322, in the second position, the rigid suction head is in butt joint with the end of the connecting pipe 322.

[0076] Optionally, the second suction head driving device comprises a switching component driving cylinder and a switching component control valve for controlling the action of the switching component driving cylinder, and the trailer controller 63 is in communication connection with the switching component control valve. When the active component of the switching component driving cylinder changes the stroke, the switching component can rotate a certain angle, for example 90°, between the first position and the second position, so that one of the flexible suction head and the rigid suction head is connected with the suction pipe 4 and the other is separated from the suction pipe 4.

[0077] In the above embodiment, the third preset distance value L3 can be used as a threshold value for switching the flexible suction head and the rigid suction head. When L≤L3, it indicates that the end of the suction head 321 is close to the trapped person, at this time the flexible suction head is connected with the suction pipe 4, which can protect the trapped person from being injured by the suction head 321; when L>L3, it indicates that the end of the suction head 321 is far away from the trapped person, at this time the rigid suction head is connected with the suction pipe 4 to agitate the material at the position of the suction head 321, thereby improving the efficiency of the suction rescue.

[0078] In the process of implementing the present disclosure, the inventor found that when the end of the suction head approaches the buried person, due to the large suction wind speed and strong suction force, if the operator operates improperly, it is easy to cause the buried person to be injured again.

[0079] In some embodiments, the suction rescue unit comprises a material car 2 and a material car controller 62. The material car 2 is configured to collect the material sucked by the trailer 3, and the material car 2 has a material inlet. The material car 2 comprises a material inlet control valve 21 arranged at the material inlet, and the material inlet control valve 21 is configured to adjust the opening degree of the material inlet. The material car controller 62 is in communication connection with the detection device 7 and the material inlet control valve 21 and is configured to: if L≤L2, generate an opening degree control instruction, and the material inlet control valve 21 reduces the opening degree of the material inlet to a preset opening degree value in response to the opening degree control instruction, wherein L2 represents a second preset distance value, and L1<L2.

[0080] Optionally, with reference to Figure 3 and Figure 4 , the material car controller 62 is configured to generate an opening degree control instruction if L1<L≤L2. Optionally, the preset opening degree value can be set to zero, that is, the material inlet control valve 21 closes the material inlet in response to the opening degree control instruction.

[0081] In the above embodiment, when L≤L2, the opening degree of the material inlet is reduced or directly closed under the action of the material inlet control valve 21, which can prevent the end of the suction head 321 from being too close to the trapped person, causing the wind speed to be too high and the suction force to be too large, thereby causing secondary injury to the trapped person.

[0082] In some embodiments, the suction rescue team includes the power vehicle 1 and the power vehicle controller 61. The power vehicle 1 includes a fan configured to provide suction power to the tow truck 3 and a fan driving device 11 drivingly connected with the fan and configured to drive the fan to rotate. The power vehicle controller 61 is communicatively connected with the detection device 7 and the fan driving device 11 and configured to generate a first fan control instruction if L≤L1, the fan driving device 11 reduces the rotation speed of the fan to a third preset rotation speed value R1 in response to the first fan control instruction, and / or generate a second fan control instruction if L1

[0083] In the above embodiments, the fan can gradually reduce the speed as the suction head 321 approaches the trapped person. In the states of L≤L1 and L1

[0084] Based on the above description, it can be seen that the suction rescue device provided by the embodiments of the present disclosure can adjust the action of the execution component according to the distance L between the end of the suction head 321 and the trapped person during the suction rescue process. When the distance L is small, the trapped person can be provided with close-range protection measures, which is beneficial to fully reduce the safety risk. When the distance L is large enough, the suction rescue efficiency can be maximized.

[0085] In some embodiments, the hose trailer controller, the material trailer controller, and the power trailer controller described above can be implemented as a general purpose processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in the present disclosure. The control instructions generated by the hose trailer controller, the material trailer controller, and the power trailer controller can be transmitted through the CAN bus.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate but not limit the technical solutions of the present disclosure; although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those of ordinary skill in the art that the specific embodiments of the present disclosure can be modified or some technical features can be replaced by equivalent replacements, which should be covered in the technical solution range of the present disclosure.

Claims

1. A suction rescue assembly, characterized in that The suction rescue machine comprises: a suction truck (3) configured to perform a suction operation, comprising a suction truck body (30), an arm support (31), a suction head (321) and an arm support driving device, a first end of the arm support (31) being movably connected to the suction truck body (30), the suction head (321) being installed at a second end of the arm support (31) and being movable with the arm support (31), the arm support driving device being configured to drive the arm support (31) to move relative to the suction truck body (30); a suction pipe (4) for conveying the suctioned material, the suction head (321) being rotatably installed at the second end of the arm support (31) and being connected with the suction pipe (4), the suction truck (3) comprising a first suction head driving device (34) which is drivingly connected with the suction head (321) and is configured to drive the suction head (321) to rotate around its own axis to agitate the material at the position of the suction head (321); a detection device (7) configured to detect a distance L between a distal end of the suction head (321) and a trapped person; and a suction truck controller (63) which is communicatively connected with the detection device (7) and the arm support driving device and is configured to generate an arm support control instruction if L≤L1, the arm support driving device moving the arm support (31) to move the distal end of the suction head (321) away from the trapped person in response to the arm support control instruction, wherein L1 represents a first preset distance value. The suction truck controller (63) is communicatively connected with the first suction head driving device (34) and is configured to generate a first suction head control instruction if L≤L2, the first suction head driving device (34) preventing the suction head (321) from rotating around its own axis in response to the first suction head control instruction, and / or generate a second suction head control instruction if L2 2. The suction rescue machine according to claim 1, wherein the arm support driving device comprises an arm support control valve (331) and an arm support driving cylinder (332), the arm support driving cylinder (332) being drivingly connected with the arm support (31), and the arm support control valve (331) being arranged in a hydraulic system of the suction truck (3) and being configured to control the movement of a movable part of the arm support driving cylinder (332) to drive the arm support (31) to move relative to the suction truck body (30). ​ The arm support control valve (331) is communicatively connected with the trailer control device (63) and is configured to be responsive to the arm support control instruction to lift the second end of the arm support (31) relative to the trailer body (30) until L>L1.

3. The suction relief pack of claim 1, wherein, The suction rescue assembly includes a suction pipe (4) for conveying the suctioned material, the trailer (3) includes a plurality of suction heads (321), the suction pipe (4) is selectively connected with one of the plurality of suction heads (321), and the plurality of suction heads (321) include flexible suction heads and rigid suction heads.

4. The suction relief pack of claim 3, wherein, The suction rescue assembly includes an alarm device (8), the trailer control device (63) is communicatively connected with the alarm device (8) and is configured to generate a prompt instruction if L≤L3, the alarm device (8) is responsive to the prompt instruction to issue alarm information, the alarm information is used to indicate the distance L, and / or the alarm information is used to indicate that the flexible suction head is connected to the suction pipe (4), wherein L3 represents a third preset distance value, and L1 5. The suction rescue assembly according to claim 3, wherein The trailer (3) includes a switching component and a second suction head driving device, the switching component is movably arranged between a first position and a second position, the flexible suction head and the rigid suction head are mounted on the switching component, in the first position, the flexible suction head is connected with the suction pipe (4), in the second position, the rigid suction head is connected with the suction pipe (4), and the second suction head driving device is drivingly connected with the switching component and is configured to drive the switching component to move between the first position and the second position. The trailer control device (63) is communicatively connected with the second suction head driving device and is configured to generate a first switching instruction if L≤L3, the second suction head driving device is responsive to the first switching instruction to move the switching component to the first position, and / or generate a second switching instruction if L>L3, the second suction head driving device is responsive to the second switching instruction to move the switching component to the second position, wherein L3 represents a third preset distance value, and L1 6. A suction rescue assembly according to any one of claims 1 to 5, wherein, Comprising: a trailer (2) configured to collect the material suctioned by the trailer (3), the trailer (2) having a material inlet, the trailer (2) including a material inlet control valve (21) arranged at the material inlet, the material inlet control valve (21) being configured to adjust the opening degree of the material inlet; and a trailer control device (62) communicatively connected with the detection device (7) and the material inlet control valve (21) and configured to generate an opening degree control instruction if L≤L2, the material inlet control valve (21) being responsive to the opening degree control instruction to reduce the opening degree of the material inlet to a preset opening degree value, wherein L2 represents a second preset distance value, and L1 7. A suction rescue assembly according to any one of claims 1 to 5, wherein, Comprising: The power vehicle (1) comprises a fan and a fan driving device (11), the fan is configured to provide suction power to the trailer vehicle (3), the fan driving device (11) is drivingly connected with the fan and is configured to drive the fan to rotate; And The power vehicle controller (61) is in communication connection with the detection device (7) and the fan driving device (11) and is configured to: if L≤L1, a first fan control instruction is generated, the fan driving device (11) reduces the rotating speed of the fan to a third preset rotating speed value R1 in response to the first fan control instruction, and / or, if L1<L≤L2, a second fan control instruction is generated, the fan driving device (11) reduces the rotating speed of the fan to a fourth preset rotating speed value R2 in response to the second fan control instruction, and / or, if L>L3, a third fan control instruction is generated, the fan driving device (11) keeps the rotating speed of the fan at a rated rotating speed R3 in response to the third fan control instruction, wherein L2 represents a second preset distance value, L3 represents a third preset distance value, L1<L2, R1<R2<R3.

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