CN210057228U

CN210057228U - Automatic liquid suction device of liquid supply fire engine

Info

Publication number: CN210057228U
Application number: CN201920472847.8U
Authority: CN
Inventors: 张建明
Original assignee: Jetta Fire Technology (suzhou) Ltd By Share Ltd
Current assignee: Jetta Fire Technology (suzhou) Ltd By Share Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-02-14
Anticipated expiration: 2029-04-09

Abstract

The utility model provides a supply liquid fire engine's automatic suction means, supply liquid fire engine include the chassis, with the locomotive of the left end connection of chassis with establish the foam tank on the chassis, on the chassis and separate to be equipped with the pump railway carriage or compartment corresponding to the position of the left end of foam tank, automatic suction means includes pipette and reinforce foam pumping mechanism, reinforce foam pumping mechanism establish in the pump railway carriage or compartment and be connected with the foam tank, the pipette is corresponding to the top of foam tank, characteristics: the automatic liquid suction device further comprises a suspension arm rotation driving mechanism, a suspension arm and a liquid suction pipe telescopic lengthening pipe, wherein the suspension arm rotation driving mechanism is arranged at the top of the pump chamber, the left end of the suspension arm is connected with the suspension arm rotation driving mechanism, the right end of the suspension arm is provided with an auxiliary telescopic arm in a matched mode, the left end of the liquid suction pipe is connected with the aid foam pumping mechanism, the middle of the liquid suction pipe is fixed with the lower portion of the suspension arm, the left end of the liquid suction pipe telescopic lengthening pipe is connected with the right end of the liquid suction pipe, and the right end. The operation intensity is reduced, and the working efficiency is improved; improve the adaptability to the environment of the absorption site.

Description

Automatic liquid suction device of liquid supply fire engine

Technical Field

The utility model belongs to the technical field of the fire control facility, concretely relates to supply automatic liquid suction device of liquid fire engine.

Background

The liquid supply fire engine described above functions to store and transport (transport and transfer) the foam for fire fighting. As is known in the art, the volume of foam in a foam tank (also referred to as a foam storage tank) mounted on a fire engine is limited, and thus the volume of foam in the foam tank is also limited. However, in order to ensure a continuous supply of foam for fire extinguishing during actual fire extinguishing, foam is generally delivered by a separate foam delivery fire truck (conventionally referred to as a "backup foam fire truck") via a pump to a foam fire truck in an operating state, which is referred to herein as a foam fire truck: the foam fire truck is parked at a fire scene, and a foam outlet port on a foam tank of the foam fire truck is in a state of conveying foam to a foam fire extinguishing gun through a connected pipeline (a booster pump is arranged on the pipeline). One of the defects of the operation mode is that the back-up foam fire fighting truck can return (namely leave) after all the foam in the foam tank of the back-up foam fire fighting truck is pumped, so that the delay time is long, and the foam conveying efficiency is influenced; secondly, the foam fire truck in the working state transfers foam and a plurality of vehicles are invested, so that on one hand, resource waste is caused, and on the other hand, the fire extinguishing and disaster relief cost is increased.

Further, as known in the art, in the fire disaster such as petrochemical industry and oil depot, the amount of foam used is very large, but due to limited field, the number of foam fire trucks which can really approach the fire scene for putting out a fire is very limited, and other foam fire trucks which cannot enter the fire scene can only perform a rescue task at the periphery, thereby causing the embarrassment situation that the foam of the front truck is used up and the foam of the rear truck cannot be delivered in time. The foam fire engine with uninterrupted liquid supply function recommended by the invention patent application publication No. CN108619645A solves the technical problems, but has the following defects: first, according to the description of 0034 of this patent application, since the pipette of the structural system of the rescue foam suction mechanism is not automatically rotated, after the foam fire fighting truck is driven to the fire fighting site, the pipette needs to be manually pulled to one side of the foam tank by the fire fighter, which not only increases the workload of the fire fighter, but also affects the efficiency of putting the pipette into operation in time to a certain extent; secondly, the liquid suction pipe cannot be stretched in the length direction, so that inconvenience is brought to actual liquid suction, for example, when a backup foam fire truck or a foam barrel (with the size of a ton barrel and a liter barrel) serving as a booster foam container is difficult to or even cannot be close to the liquid supply fire truck due to the limitation of fire extinguishing site conditions, the liquid suction of the liquid supply fire truck is influenced. Although technical information about liquid supply fire fighting vehicles, such as CN107007958A (a new type of foam fire fighting vehicle and foam supply and delivery device), CN205127228U (a self-priming foam fire fighting vehicle), CN204637382U (class a foam fire fighting vehicle external foam suction system) and CN205683443U (foam liquid quick supply device), is not available in the published chinese patent documents, no suggestion is given to make up for the above technical problems, and the technical solutions to be described below are generated in this context.

Disclosure of Invention

The task of the utility model is to provide a help making the pipette to roll out the lateral part of foam tank automatically as required and can alleviate fire fighter's operation intensity and ensure the pipette in time drop into the work efficiency of imbibition, be favorable to making the pipette stretch out and draw back as required at length direction and can promote the automatic liquid suction device to the confession liquid fire engine to the adaptability of imbibition site environment.

The utility model aims to achieve the task, an automatic imbibition device of liquid supply fire engine, liquid supply fire engine include the chassis, with the locomotive of the left end connection of chassis and set up the foam tank on the chassis, wherein, on the chassis and separate at the position that corresponds to the left end of foam tank and be equipped with a pump railway carriage or compartment, automatic imbibition device includes pipette and increase aid foam pumping mechanism, increase aid foam pumping mechanism set up in the pump railway carriage or compartment and be connected with the foam tank, the pipette corresponds the length direction's of foam tank top, characterized in that automatic imbibition device still include a davit rotary drive mechanism, a davit and a flexible extension pipe of pipette, davit rotary drive mechanism sets up the top of pump railway carriage or compartment, the left end of davit is connected with davit rotary drive mechanism, the right-hand member with unsettled state corresponding to the top of foam tank and set up supplementary flexible arm, the left end of the liquid suction pipe is connected with the aid foam pumping mechanism at a position corresponding to the boom rotation driving mechanism, the middle of the liquid suction pipe is fixed with the lower part of the boom, the left end of the telescopic lengthened pipe of the liquid suction pipe is connected with the right end of the liquid suction pipe, and the right end of the telescopic lengthened pipe of the liquid suction pipe is a free end and extends to the right side face of the foam tank.

In a specific embodiment of the present invention, a foam tank liquid inlet port for introducing foam into the foam tank is provided on the left side of the foam tank, and the reinforcement foam pumping mechanism provided in the pump compartment is connected to the foam tank liquid inlet port; the middle part of the liquid suction pipe is fixed with the lower part of the suspension arm through pipe buckles distributed at intervals, the left end of the liquid suction pipe is connected with the suspension arm rotation driving mechanism along with the left end of the suspension arm, and the middle part of the telescopic lengthened pipe of the liquid suction pipe is supported at the right end of the auxiliary telescopic arm; a step is arranged at the right end of the chassis, and a ladder stand is arranged on the right end face of the foam tank.

In another specific embodiment of the present invention, the boom swing drive mechanism comprises a worm case drive oil motor, a worm case, a worm gear case, a worm wheel, a swing disc, a worm wheel inner disc, and a worm gear case platform, the worm gear case platform is fixed on the top of the pump chamber, the worm case drive oil motor is in driving fit with the worm case and is fixed on the worm gear case platform by the worm case together with the worm case drive oil motor, the worm gear case is also fixed on the worm gear case platform at a position corresponding to the left side of the worm case, the worm wheel inner disc is located in the worm case and is fixed with the worm gear case platform, a worm wheel inner disc swing joint abdicating cavity running from the upper part to the lower part of the worm wheel inner disc is formed at the central position of the worm wheel inner disc, the worm wheel inner disc swing joint abdicating cavity corresponds to a worm gear case platform swing joint abdicating hole provided on the worm gear case platform, the worm wheel is arranged between the worm wheel inner disc and the worm wheel box and is in transmission fit with the worm wheel box, rotary disc fixing screw holes are formed in one upward side of the worm wheel and in a spaced mode in the circumferential direction of the worm wheel, the rotary disc is fixed with the worm wheel through the rotary disc fixing screws at the position corresponding to the rotary disc fixing screw holes, and a liquid suction pipe matching hole is formed in the center of the rotary disc; the left end of the pipette is connected with the redundant foam pumping mechanism at a position corresponding to the pipette mating hole; the left end of the suspension arm is fixed with the upward side of the rotary disc, the suspension arm forms a suspension arm cavity, an auxiliary telescopic arm driving oil cylinder is arranged in the suspension arm cavity, and an auxiliary telescopic arm driving oil cylinder column of the auxiliary telescopic arm driving oil cylinder is connected with the end face of the left end of the auxiliary telescopic arm; the right end of the telescopic lengthened pipe of the pipette is provided with a quick joint of the telescopic lengthened pipe, and the quick joint of the telescopic lengthened pipe is inserted and fixed on the step in a standby state; and an extraction gun storage seat is arranged on the right end face of the foam tank and at a position corresponding to the outer side of the ladder stand, an extraction gun is stored on the extraction gun storage seat, and the extraction gun is spliced with the quick joint of the telescopic lengthening pipe in a use state.

In a further specific embodiment of the present invention, the aid-adding foam pumping mechanism comprises a foam pump driving oil motor, a foam pump, a foam flow guiding pipe, a rotary joint, an oil tank, a hydraulic oil cooler and a control valve, the foam pump driving oil motor is in transmission fit with the foam pump and is disposed at the lower part of the pump chamber together with the foam pump driving oil motor, a foam flow guiding pipe valve is disposed at the upper end of the foam flow guiding pipe, the lower end of the foam flow guiding pipe is connected with a foam pump inlet of the foam pump, the left end of the foam flow guiding pipe is connected with a foam pump outlet of the foam pump, the right end of the foam flow guiding pipe is connected with a liquid outlet valve inlet of the liquid outlet valve, a liquid outlet of the liquid outlet valve is connected with a liquid inlet of the foam tank, the rotary joint is disposed in the worm wheel inner disc, and the upper end of the rotary joint corresponds to the worm wheel inner disc rotary joint abdication cavity, the lower end of the foam guide pipe valve is corresponding to the receding hole of the rotary joint of the worm gear box platform and is connected with the foam guide pipe valve, the left end of the liquid suction pipe is connected with the upper end of the rotary joint at a position corresponding to the matching hole of the liquid suction pipe, the oil tank is fixed in the pump chamber at a position corresponding to the upper part of the foam pump, the hydraulic oil cooler and the control valve are arranged in the pump chamber, the oil inlet of the hydraulic oil cooler is connected with the first interface of the control valve through the oil inlet pipe of the hydraulic oil cooler, an oil outlet of a hydraulic oil cooler of the hydraulic oil cooler is connected with an oil tank oil inlet of an oil tank through an oil outlet pipe of the hydraulic oil cooler, a control valve oil inlet of a control valve is connected with an oil outlet of a vehicle-mounted hydraulic pump of the vehicle-mounted hydraulic pump through a control valve oil inlet pipeline, an oil inlet of a vehicle-mounted hydraulic pump of the vehicle-mounted hydraulic pump is connected with an oil outlet of an oil tank through an oil inlet pipe of the vehicle-mounted hydraulic pump; an oil inlet interface of a foam pump driving oil motor of the foam pump driving oil motor is connected with an oil supply interface of the foam pump driving oil motor of the control valve through an oil inlet pipe of the foam pump driving oil motor, and an oil return interface of the foam pump driving oil motor is connected with an oil return pipe interface of the foam pump driving oil motor of the control valve through an oil return pipe of the foam pump driving oil motor; the worm box driving oil motor is provided with a worm box oil inlet interface, a worm oil return interface and a worm box driving oil motor oil drainage interface, the worm box driving oil motor oil inlet interface is connected with a worm box driving oil motor oil supply pipe interface of the control valve through a worm box driving oil motor oil supply pipe, and the worm box driving oil motor oil return interface of the worm box driving oil motor is connected with a worm box driving oil motor oil return pipe interface of the control valve through a worm box driving oil motor oil return pipe; the auxiliary telescopic boom driving oil cylinder is provided with a first oil inlet and return port of the auxiliary telescopic boom driving oil cylinder and a second oil inlet and return port of the auxiliary telescopic boom driving oil cylinder, the first oil inlet and return port of the auxiliary telescopic boom driving oil cylinder is connected with a first interface of an oil inlet and return port connecting pipeline of the control valve through a first oil inlet and return port connecting pipeline of the auxiliary telescopic boom driving oil cylinder, a second oil inlet and return port of the auxiliary telescopic boom driving oil cylinder is connected with a second interface of an oil inlet and return port connecting pipeline of the control valve through a second oil inlet and return port connecting pipeline of the auxiliary telescopic boom driving oil cylinder, wherein a drain tank is arranged between the control valve and the vehicle-mounted hydraulic pump, a vehicle-mounted hydraulic pump oil drain overpressure port of the vehicle-mounted hydraulic pump is connected with a first interface of a drain tank of the drain tank through a vehicle-mounted hydraulic pump overpressure oil drain port connecting pipe, and a control valve oil drain port of the control valve, the oil motor oil drainage interface of the foam pump driving oil motor is connected with an oil drainage tank second interface of the oil drainage tank through an oil drainage interface pipeline, the worm box driving oil motor oil drainage interface of the worm box driving oil motor is connected with an oil drainage tank third interface of the oil drainage tank through a worm box driving oil motor oil drainage interface pipeline, the vehicle-mounted hydraulic pump is connected with the power takeoff through a transmission shaft in a transmission mode, and the power takeoff is connected with the vehicle-mounted power system in a transmission mode.

In another specific embodiment of the present invention, a foam tank liquid outlet assembly is fixed to the front side and/or the rear side of the chassis, a foam tank liquid outlet is provided on the foam tank liquid outlet assembly, the foam tank liquid outlet is communicated with the foam tank, and in the use state, the foam tank liquid outlet is connected to the foam extinguishing gun pipeline of the foam extinguishing gun.

In still another specific embodiment of the present invention, the left end of the boom is fixed with a boom fixing base, the boom fixing base is fixed with the rotary disk, and the boom fixing base is formed with a pipette-stepping cavity, the left end of the pipette is inserted into the pipette-stepping cavity and is formed with a pipette flange at the left end of the pipette, the upper end of the rotary joint is formed with a return joint upper flange, and is formed with a return joint lower flange at the lower end of the rotary joint, and the pipette flange is corresponding to the position of the pipette-stepping hole and the rotary joint upper flange fixed connection, and the rotary joint lower flange and the foam honeycomb duct valve flange connection.

In a more specific embodiment of the present invention, a telescopic extension pipe connecting support base is fixed to the right end of the suspension arm, a telescopic extension pipe connecting support is fixed to each of the front side and the rear side of the telescopic extension pipe connecting support base, a three-way pipe joint is fixedly connected to the right end of the pipette, a pair of the telescopic extension pipes of the pipette are arranged, and the left end of the telescopic extension pipe connecting support is connected to the three-way pipe joint, and the three-way pipe joint is communicated with the pipette.

In yet another specific embodiment of the present invention, a hanger fixing seat is fixed to the right end of the auxiliary telescopic arm, a hanger is fixed to each of the front side and the rear side of the hanger fixing seat, and the middle portion of the telescopic extension pipe of the pipette is inserted into and supported by the hanger.

In yet another specific embodiment of the present invention, a pipeline on-off opening/closing valve is disposed on the pipeline of the oil inlet pipe of the vehicle-mounted hydraulic pump.

In yet another specific embodiment of the present invention, the telescopic extension tube of the pipette is a corrugated tube.

The technical scheme provided by the utility model is additionally provided with the suspension arm rotary driving mechanism, the suspension arm and the pipette telescopic lengthening pipe, so that the suspension arm rotary driving mechanism can drive the suspension arm together with the pipette telescopic lengthening pipe to automatically roll out to the side part of the foam tank without pulling and pulling by a firefighter, thereby not only reducing the operation intensity of the firefighter, but also improving the working efficiency by quickly putting into imbibition work; because the auxiliary telescopic arm is arranged for the suspension arm, the total length of the suspension arm can be prolonged according to the requirement, and meanwhile, the telescopic lengthened pipe of the liquid suction pipe can be stretched along with the telescopic extension of the auxiliary telescopic arm so as to prolong the length of the liquid suction pipe and improve the adaptability to the environment of the liquid suction site.

Drawings

Fig. 1 is a schematic view of an embodiment of the present invention.

Fig. 2 is a detailed structural view of the pump chamber, pipette, boost foam pumping mechanism, boom swing drive mechanism, and boom shown in fig. 1.

Fig. 3 is a detailed structural view of the pipette extension tube shown in fig. 1.

Fig. 4 is a structure diagram of the hydraulic oil circuit of the present invention.

Fig. 5 is a schematic view of the utility model, which is used for sucking fire extinguishing foam in the ton bucket into the foam tank.

Fig. 6 is a schematic view of the present invention in sucking fire extinguishing foam in the rising bucket into the foam tank.

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position state of fig. 1, and thus, should not be interpreted as a specific limitation to the technical solution provided by the present invention.

Referring to fig. 1, there are shown a chassis 1 of a structural system of a liquid supply fire fighting truck, a truck head 2 connected to a left end of the chassis 1, and a foam tank 3 provided on the chassis 1, wherein a pump compartment 4 is partitioned at a position on the chassis 1 and corresponding to the left end of the foam tank 3, a pump compartment door 41 is provided at a front side of the pump compartment 4, a pipette 5 and a booster foam pumping mechanism 6 of the structural system of an automatic liquid suction apparatus are shown, the booster foam pumping mechanism 6 is provided in the pump compartment 4 and connected to the foam tank 3, and the pipette 5 corresponds to a position above a length direction of the foam tank 3.

As the technical scheme provided by the utility model: the structural system of the automatic liquid suction device further comprises a boom rotation driving mechanism 7, a boom 8 and a liquid suction pipe extension and contraction pipe 9, the boom rotation driving mechanism 7 is arranged on the top of the pump chamber 4, the left end of the boom 8 is connected with the boom rotation driving mechanism 7, the right end of the boom 8 corresponds to the upper part of the foam tank 3 in a suspended state and is provided with an auxiliary extension and contraction arm 81, the left end of the liquid suction pipe 5 is connected with the aid foam pumping mechanism 6 at a position corresponding to the boom rotation driving mechanism 7, the middle part of the liquid suction pipe 5 is fixed with the lower part of the boom 8, the left end of the liquid suction pipe extension and contraction pipe 9 is connected with the right end of the liquid suction pipe 5, and the right end of the liquid suction pipe extension and contraction pipe 9 is a free end and extends to the right side surface of the foam tank.

Referring to fig. 2 and with reference to fig. 1, a foam tank inlet port 31 for introducing foam into the foam tank 3 is provided on the left side of the foam tank 3, and the booster foam pumping mechanism 6 provided in the pump chamber 4 is connected to the foam tank inlet port 31; the middle part of the pipette 5 is fixed to the lower part of the boom 8, i.e., the downward side, by means of pipe fasteners 51 arranged at intervals and pipe fastener fixing screws 511, and the left end of the pipette 5 is connected to the boom rotation driving mechanism 7 along with the left end of the boom 8, and the middle part of the pipette telescopic extension pipe 9 is supported at the right end of the auxiliary telescopic arm 81; a step 11 is arranged at the right end of the chassis 1, and a ladder stand 32 is arranged at the right end surface of the foam tank 3.

Continuing to refer to fig. 2, the boom swing drive mechanism 7 includes a worm case drive oil motor 71, a worm case 72, a worm gear case 73, a worm wheel 74, a swing disc 75, a worm wheel inner disc 76 and a worm gear case platform 77, the worm gear case platform 77 is preferably fixed on the top of the pump chamber 4 in a welding manner, the worm case drive oil motor 71 is in driving fit with the worm case 72 and is fixed on the worm gear case platform 77 by the worm case 72 together with the worm case drive oil motor 71, the worm gear case 73 is also fixed on the worm gear case platform 77 at a position corresponding to the left side of the worm case 72, the worm wheel inner disc 76 is located in the worm gear case 73 and is fixed with the worm gear case platform 77, a worm wheel inner disc swing joint relief cavity 761 penetrating from the upper portion to the lower portion of the worm wheel inner disc 76 is formed at the center position of the worm wheel inner disc 76, the worm wheel inner disc swing joint relief cavity 761 corresponds to a worm gear case swing joint relief hole 771 provided on the worm gear case platform 77, the worm wheel 74 is arranged between the worm wheel inner disc 76 and the worm wheel box 73 and is in transmission fit with the worm box 72, rotary disc fixing screw holes 741 are formed in one upward side of the worm wheel 74 and surround the circumferential direction of the worm wheel 74 at intervals, the rotary disc 75 is fixed with the worm wheel 74 at a position corresponding to the rotary disc fixing screw holes 741 through the rotary disc fixing screws 751, and a liquid suction pipe matching hole 752 is formed in the center position of the rotary disc 75; the left end of the pipette 5 is connected to the booster foam pumping mechanism 6 at a position corresponding to the pipette fitting hole 752.

Referring to fig. 2 and 3, the left end of the boom 8 is fixed to the upward side of the rotary plate 75, the boom 8 is formed with a boom chamber 82, an auxiliary telescopic arm driving cylinder 83 is provided in the boom chamber 82 through a cylinder fixing pin 834, and the end of an auxiliary telescopic arm driving cylinder column 831 of the auxiliary telescopic arm driving cylinder 83 is connected to the left end surface of the auxiliary telescopic arm 81 through a cylinder column connector 8311 by means of a connector pin 83111; a quick telescopic lengthening pipe joint 91 is arranged at the right end of the telescopic lengthening pipe 9 of the pipette, and the quick telescopic lengthening pipe joint 91 is inserted, embedded and fixed to be deposited on the step 11 in a standby state, namely in a non-use state; an extraction gun storage 33 is provided on the right end surface of the foam tank 3 at a position corresponding to the outside of the ladder 32, an extraction gun 10 is stored in the extraction gun storage 33, and the extraction gun 10 is inserted into the quick extension pipe joint 91 in a use state.

Referring to fig. 2 to 4, the boosting foam pumping mechanism 6 includes a foam pump driving oil motor 61, a foam pump 62, a foam guiding pipe 63, a foam guiding pipe 64, a rotary joint 65, an oil tank 66, a hydraulic oil cooler 67 and a control valve 68, the foam pump driving oil motor 61 is in driving fit with the foam pump 62 and the foam pump driving oil motor 61 is disposed at the lower part of the pump chamber 4, a foam guiding pipe valve 631 is disposed at the upper end of the foam guiding pipe 63, the lower end of the foam guiding pipe 63 is connected to a foam pump inlet 621 of the foam pump 62, the left end of the foam guiding pipe 64 is connected to a foam pump outlet 622 of the foam pump 62, the right end of the foam guiding pipe 64 is connected to a liquid outlet valve inlet of a liquid outlet valve 641, the liquid outlet of the liquid outlet valve 641 is connected to the liquid inlet 31 of the foam tank, the rotary joint 65 is disposed in the worm wheel inner disc 76, and the upper end of the swivel joint 65 corresponds to the aforementioned worm gear inner disc swivel joint relief chamber 761, and the lower end corresponds to the aforementioned worm gear case platform swivel joint relief hole 771 and is connected with the aforementioned foam flow tube valve 631, the left end of the aforementioned pipette 5 is connected with the upper end of the swivel joint 65 at a position corresponding to the aforementioned pipette fitting hole 752, the oil tank 66 is fixed in the aforementioned pump compartment 4 at a position corresponding to the upper side of the foam pump 62, the hydraulic oil cooler 67 and the control valve 68 are provided in the pump compartment 4, the hydraulic oil cooler oil inlet 671 of the hydraulic oil cooler 67 is connected with the control valve first port 681 of the control valve 68 by the hydraulic oil cooler oil inlet pipe 6711, and the hydraulic oil cooler oil outlet 672 of the hydraulic oil cooler 67 is connected with the oil tank oil inlet 661 of the oil tank 66 by the hydraulic oil cooler oil outlet pipe 6721, the control valve oil inlet 682 of the control valve 68 is connected with the vehicle-mounted oil outlet 201 of the vehicle-mounted hydraulic pump 20 by the control valve pipe inlet 68, the vehicle-mounted hydraulic pump oil inlet 202 of the vehicle-mounted hydraulic pump 20 is connected with the oil tank oil outlet 662 of the oil tank 66 through a vehicle-mounted hydraulic pump oil inlet pipe 2021; the foam pump drive oil motor oil inlet port 611 of the foam pump drive oil motor 61 is connected by a foam pump drive oil motor oil inlet pipe 6111 to the foam pump drive oil motor oil supply port 683 of the control valve 68, while the foam pump drive oil motor oil return port 612 of the foam pump drive oil motor 61 is connected by a foam pump drive oil motor oil return pipe 6121 to the foam pump drive oil motor oil return pipe port 684 of the control valve 68; the aforementioned worm case drive oil motor 71 has a worm case inlet and return oil interfaces 711 and 712 and a worm case drive oil motor drain interface 713, the worm case drive oil motor inlet interface 711 is connected to the worm case drive oil motor supply pipe interface 685 of the control valve 68 through the worm case drive oil motor supply pipe 7111, and the worm case drive oil motor return oil interface 712 of the worm case drive oil motor 71 is connected to the worm case drive oil motor return pipe interface 686 of the control valve 68 through the worm case drive oil motor return pipe 7121; the auxiliary telescopic boom driving oil cylinder 83 has a first oil inlet/return port 832 of the auxiliary telescopic boom driving oil cylinder and a second oil inlet/return port 833 of the auxiliary telescopic boom driving oil cylinder, the first oil inlet/return port 832 of the auxiliary telescopic boom driving oil cylinder is connected with a first port 687 of an oil inlet/return port connecting pipeline of the control valve 68 through a first oil inlet/return port connecting pipeline 8321 of the auxiliary telescopic boom driving oil cylinder, the second oil inlet/return port 833 of the auxiliary telescopic boom driving oil cylinder 83 is connected with a second port 688 of an oil inlet/return port connecting pipeline of the control valve 68 through a second oil inlet/return port connecting pipeline 8331 of the auxiliary telescopic boom driving oil cylinder, wherein an oil drain tank 69 is arranged between the control valve 68 and the vehicle-mounted hydraulic pump 20, the oil drain port 203 of the vehicle-mounted overpressure hydraulic pump 20 of the vehicle-mounted hydraulic pump is connected with a first port 691 of the oil drain tank 69 through a connecting pipe 2031 of the vehicle-mounted overpressure hydraulic pump, the control valve oil leading interface 689 of the control valve 68 is connected with an oil drain tank oil outlet interface 692 of the oil drain tank 69 through a control valve oil leading interface connecting pipe 6891, the oil motor oil drain interface 613 of the foam pump driving oil motor 61 is connected with an oil drain tank second interface 693 of the oil drain tank 69 through an oil drain interface pipeline 6131, the worm box driving oil motor oil drain interface 713 of the worm box driving oil motor 71 is connected with an oil drain tank third interface 694 of the oil drain tank 69 through a worm box driving oil motor oil drain interface pipeline 7131, the vehicle-mounted hydraulic pump 20 is in transmission connection with the power takeoff 30 through a transmission shaft 204, and the power takeoff 30 is in transmission connection with a vehicle-mounted power system such as a gearbox.

When the foam pump drives the oil motor 61 to work, the foam pump 62 is driven by the foam pump, and the reinforcement foam sequentially enters the foam guide pipe 63 through the liquid pumping gun 10, the liquid suction pipe extension pipe 9, the liquid suction pipe 5, the rotary joint 65 and the liquid outlet valve 631 which are matched and connected with the extension pipe quick joint 91 of the liquid suction pipe extension pipe 9, and then sequentially enters the foam tank 3 through the foam pump liquid inlet 621, the foam pump liquid outlet 622, the foam delivery pipe 64, the liquid outlet valve 641 and the foam tank liquid inlet interface 31 of the foam pump 62.

When the boom with the pipette 5 and the pipette telescopic extension tube 9 is to be swiveled out to the side of the foam cylinder 3, the operation is as follows: the worm box drives the oil motor 71 to work to drive the worm box 72, the worm box 72 drives the worm wheel 74, the worm wheel 74 drives the rotary disc 75, the rotary disc 75 drives the suspension arm 8 and the pipette 5 to rotate by taking the rotary disc 75 as a rotation center, specifically, the suspension arm 8, the pipette 5 and the pipette telescopic extension pipe 9 are rotated out to the side part of the foam tank 3, and the rotation angle, namely the rotation angle of the suspension arm 8 and the pipette 5 can reach 270 degrees, namely the included angle formed between the rotation angle and the side surface of the foam tank 3.

When the total length of the boom 8 is to be expanded, that is, increased, the aforementioned auxiliary telescopic contraceptive drive cylinder 83 is operated, and the right end of the telescopic arm 83 which is slidably, i.e., telescopically, fitted into the boom chamber 82 of the boom 8 is extended away from the boom 8 by the auxiliary telescopic arm drive cylinder column 831 of the auxiliary telescopic arm drive cylinder 83, and the pipette telescopic extension tube 9 is also extended. The extension of the auxiliary telescopic arm 83 can reach 3 meters.

As shown in fig. 1, a foam tank outlet port assembly 12 is fixed on the front side of the chassis 1, a foam tank outlet port 121 is disposed on the foam tank outlet port assembly 12, the foam tank outlet port 121 is communicated with the foam tank 3, and in a use state, the foam tank outlet port 121 is connected to a foam extinguishing gun pipeline of the foam extinguishing gun. The foam tank liquid outlet interface assembly 12 can also be arranged on the front side and the rear side of the chassis 1, or only on the front side or the rear side.

Referring to fig. 2, a boom fixing base 84 is fixed to the left end of the boom 8, the boom fixing base 84 is fixed to the swivel plate 75, the boom fixing base 84 forms a pipette seating chamber 841, the left end of the pipette 5 protrudes into the pipette seating chamber 841, a pipette flange 52 is formed at the left end of the pipette 5, a swivel upper flange 651 is formed at the upper end of the swivel 65, a swivel lower flange 652 is formed at the lower end of the swivel 65, the pipette flange 52 is fixedly connected to the swivel upper flange 651 at a position corresponding to the pipette seating hole 752, and the swivel lower flange 652 is flange-connected to the foam nozzle valve 631.

Referring to fig. 3, a telescopic extension pipe connecting bracket seat 85 is fixed to the right end of the boom 8, a telescopic extension pipe connecting bracket 851 is fixed to each of the front and rear sides of the telescopic extension pipe connecting bracket seat 85, a three-way pipe joint 53 is fixedly connected to the right end of the pipette 5, a pair of the pipette extension pipes 9 are provided, the left end of the pipette extension pipe 9 is connected to the three-way pipe joint 53 at the position of the telescopic extension pipe connecting bracket 851, and the three-way pipe joint 53 is communicated with the pipette 5.

Preferably, a hanger fixing seat 811 is fixed to the right end of the auxiliary telescopic arm 81, a hanger 8111 is fixed to each of the front and rear sides of the hanger fixing seat 811, and the middle portion of the pipette extension tube 9 is inserted into and supported by the hanger 8111.

As shown in fig. 2, a line on-off valve 20211 is provided in the line of the intake pipe 2021 of the on-vehicle hydraulic pump.

In this embodiment, the pipette extension tube 9 is a corrugated tube.

Referring to fig. 5, in the fire fighting process, the foam ton barrel 401 is transported to the foam tank 3 of the liquid supply fire truck shown in fig. 1 to 3 by the foam booster vehicle 40, the boom 8, the pipette 5 and the pipette extension tube 9 are rotated out of the side of the foam tank 3 according to the applicant's above, and the liquid suction gun 10 is taken down from the liquid suction gun storage chamber 33 by the firefighter, and the liquid suction gun 10 is inserted into the foam ton barrel 401 after being connected with the extension tube quick coupling 91. As described above by the applicant, under the operation of the booster pumping mechanism 6, foam is sucked, i.e. drawn, into the foam tank 3 from the aforementioned foam tank inlet port 31. As can be seen from fig. 3 and 5, the two telescopic extension tubes 9 of the liquid suction tube can suck liquid in a double tube manner.

Referring to fig. 6, the foam raising bucket 50 of the present invention is shown being transported by a foam booster 40 or other similar fire fighting vehicle and being unloaded on the floor, and a conversion interface 60 is connected to the quick connector 91 of the extension pipe by a firefighter, and the conversion interface 60 simultaneously extracts fire extinguishing foam from a plurality of foam raising buckets 50.

Because the utility model can make the foam tank 3 provide foam to the foam tank liquid outlet port 121 without interval, the ideal emergency rescue and disaster relief effect can be ensured.

To sum up, the technical solution provided by the present invention remedies the defects in the prior art, successfully completes the invention task, and faithfully embodies the technical effects mentioned in the above technical effect column by the applicant.

Claims

1. An automatic liquid suction device of a liquid supply fire fighting truck, the liquid supply fire fighting truck comprises a chassis (1), a truck head (2) connected with the left end of the chassis (1) and a foam tank (3) arranged on the chassis (1), wherein a pump carriage (4) is arranged on the chassis (1) at a position corresponding to the left end of the foam tank (3) in an interval manner, the automatic liquid suction device comprises a liquid suction pipe (5) and a reinforcement foam pumping mechanism (6), the reinforcement foam pumping mechanism (6) is arranged in the pump carriage (4) and is connected with the foam tank (3), the liquid suction pipe (5) corresponds to the upper part of the length direction of the foam tank (3), the automatic liquid suction device is characterized by further comprising a suspension arm rotary driving mechanism (7), a suspension arm (8) and a liquid suction pipe telescopic lengthening pipe (9), and the rotary arm driving mechanism (7) is arranged at the top of the pump carriage (4), the left end of the suspension arm (8) is connected with a suspension arm rotation driving mechanism (7), the right end of the suspension arm (8) corresponds to the upper part of the foam tank (3) in a suspended state and is provided with an auxiliary telescopic arm (81), the left end of the pipette (5) is connected with the aid foam pumping mechanism (6) at a position corresponding to the suspension arm rotation driving mechanism (7), the middle part of the pipette (5) is fixed with the lower part of the suspension arm (8), the left end of the pipette telescopic lengthening pipe (9) is connected with the right end of the pipette (5), and the right end of the pipette telescopic lengthening pipe (9) is formed into a free end and extends to the right side surface of the foam tank (3).

2. The automatic liquid suction device of a liquid supply fire fighting truck as claimed in claim 1, characterized in that a foam tank liquid inlet (31) for introducing foam into the foam tank (3) is provided on the left side of the foam tank (3), to which foam tank liquid inlet (31) the booster foam pumping mechanism (6) provided in the pump car (4) is connected; the middle part of the pipette (5) is fixed with the lower part of the suspension arm (8) through pipe fasteners (51) distributed at intervals, the left end of the pipette (5) is connected with the suspension arm rotary driving mechanism (7) along with the left end of the suspension arm (8), and the middle part of the pipette telescopic lengthened pipe (9) is supported at the right end of the auxiliary telescopic arm (81); a step (11) is arranged at the right end of the chassis (1) and a ladder (32) is arranged on the right end face of the foam tank (3).

3. The automatic liquid suction device of a fire fighting vehicle as set forth in claim 2, characterized in that the boom swing drive mechanism (7) comprises a worm case drive oil motor (71), a worm case (72), a worm case (73), a worm wheel (74), a swing disc (75), a worm wheel inner disc (76), and a worm and gear case platform (77), the worm and gear case platform (77) being fixed on top of the pump chamber (4), the worm case drive oil motor (71) being in driving engagement with the worm case (72) and being fixed on the worm and gear case platform (77) by the worm case (72) together with the worm case drive oil motor (71), the worm case (73) being also fixed on the worm and gear case platform (77) at a position corresponding to the left side of the worm case (72), the worm wheel inner disc (76) being located in the worm case (73) and being fixed with the worm and gear case platform (77), a worm wheel inner disc rotary joint abdicating cavity (761) penetrating from the upper part to the lower part of the worm wheel inner disc (76) is formed at the central position of the worm wheel inner disc (76), the receding cavity (761) of the worm wheel inner disc rotary joint corresponds to a receding hole (771) of the worm wheel and worm box platform arranged on the worm wheel and worm box platform (77), the worm wheel (74) is arranged between the worm wheel inner disc (76) and the worm box (73) and is in transmission fit with the worm box (72), a rotary disk fixing screw hole (741) is arranged on one side of the worm wheel (74) facing upwards and at intervals around the circumferential direction of the worm wheel (74), the rotary disk (75) is fixed with the worm wheel (74) at a position corresponding to the rotary disk fixing screw hole (741) through a rotary disk fixing screw (751), a liquid suction pipe connection hole (752) is formed in the center of the rotary disc (75); the left end of the pipette (5) is connected with the redundant foam pumping mechanism (6) at a position corresponding to the pipette mating hole (752); the left end of the suspension arm (8) is fixed with one upward side of the rotary disc (75), the suspension arm (8) forms a suspension arm cavity (82), an auxiliary telescopic arm driving oil cylinder (83) is arranged in the suspension arm cavity (82), and an auxiliary telescopic arm driving oil cylinder column (831) of the auxiliary telescopic arm driving oil cylinder (83) is connected with the end face of the left end of the auxiliary telescopic arm (81); a quick telescopic lengthening pipe joint (91) is arranged at the right end of the telescopic lengthening pipe (9) of the pipette, and the quick telescopic lengthening pipe joint (91) is inserted and fixed on the step (11) in a standby state; an extraction gun storage seat (33) is arranged on the right end face of the foam tank (3) and at a position corresponding to the outer side of the ladder (32), an extraction gun (10) is stored on the extraction gun storage seat (33), and the extraction gun (10) is inserted into the quick joint (91) of the telescopic lengthening pipe in a use state.

4. The automatic liquid suction device of the fire fighting vehicle as claimed in claim 3, characterized in that the booster foam pumping mechanism (6) comprises a foam pump driving oil motor (61), a foam pump (62), a foam guide pipe (63), a foam guide pipe (64), a swivel joint (65), an oil tank (66), a hydraulic oil cooler (67) and a control valve (68), the foam pump driving oil motor (61) is in transmission fit with the foam pump (62) and the foam pump driving oil motor (61) are arranged at the lower part of the pump chamber (4), a foam guide pipe valve (631) is arranged at the upper end of the foam guide pipe (63), the lower end of the foam guide pipe (63) is connected with a foam pump liquid inlet (621) of the foam pump (62), the left end of the foam guide pipe (64) is connected with a foam pump liquid outlet (622) of the foam pump (62), the right end of the foam delivery pipe (64) is connected with a liquid inlet of a liquid outlet valve (641), a liquid outlet of the liquid outlet valve (641) is connected with a liquid inlet interface (31) of the foam tank, a rotary joint (65) is arranged in the worm wheel inner disc (76), the upper end of the rotary joint (65) corresponds to the worm wheel inner disc rotary joint abdicating cavity (761), the lower end corresponds to the worm wheel and worm box platform rotary joint abdicating hole (771) and is connected with the foam delivery pipe valve (631), the left end of the liquid suction pipe (5) is connected with the upper end of the rotary joint (65) at a position corresponding to the liquid suction pipe coupling hole (752), an oil tank (66) is fixed in the pump box (4) at a position corresponding to the upper part of the foam pump (62), a hydraulic oil cooler (67) and a control valve (68) are arranged in the pump box (4), an oil inlet (671) of a hydraulic oil cooler (67) is connected with a first control valve interface (681) of a control valve (68) through a hydraulic oil cooler oil inlet pipe (6711), an oil outlet (672) of the hydraulic oil cooler (67) is connected with an oil tank oil inlet (661) of an oil tank (66) through a hydraulic oil cooler oil outlet pipe (6721), a control valve oil inlet (682) of the control valve (68) is connected with a vehicle-mounted hydraulic pump oil outlet (201) of a vehicle-mounted hydraulic pump (20) through a control valve oil inlet pipeline (6821), and a vehicle-mounted hydraulic pump oil inlet (202) of the vehicle-mounted hydraulic pump (20) is connected with an oil tank oil outlet (662) of the oil tank (66) through a vehicle-mounted hydraulic pump oil inlet pipe (2021); an oil inlet interface (611) of a foam pump driving oil motor of the foam pump driving oil motor (61) is connected with an oil supply interface (683) of the foam pump driving oil motor of the control valve (68) through an oil inlet pipe (6111) of the foam pump driving oil motor, and an oil return interface (612) of the foam pump driving oil motor (61) is connected with an oil return pipe interface (684) of the foam pump driving oil motor of the control valve (68) through an oil return pipe (6121) of the foam pump driving oil motor; the worm box driving oil motor (71) is provided with a worm box oil inlet interface, a worm box oil return interface (711, 712) and a worm box driving oil motor oil drain interface (713), the worm box driving oil motor oil inlet interface (711) is connected with a worm box driving oil motor oil supply pipe interface (685) of the control valve (68) through a worm box driving oil motor oil supply pipe (7111), and the worm box driving oil motor oil return interface (712) of the worm box driving oil motor (71) is connected with a worm box driving oil motor oil return pipe interface (686) of the control valve (68) through a worm box driving oil motor oil return pipe (7121); the auxiliary telescopic arm driving oil cylinder (83) is provided with an auxiliary telescopic arm driving oil cylinder first oil inlet and return port (832) and an auxiliary telescopic arm driving oil cylinder second oil inlet and return port (833), the auxiliary telescopic arm driving oil cylinder first oil inlet and return port (832) is connected with an oil inlet and return port connecting pipeline (687) of the control valve (68) through an auxiliary telescopic arm driving oil cylinder first oil inlet and return port connecting pipeline (8321), the auxiliary telescopic arm driving oil cylinder second oil inlet and return port (833) of the auxiliary telescopic arm driving oil cylinder (83) is connected with an oil inlet and return port connecting pipeline second interface (688) of the control valve (68) through an auxiliary telescopic arm driving oil cylinder second oil inlet and return port connecting pipeline (8331), wherein a oil drain tank (69) is arranged between the control valve (68) and the vehicle-mounted hydraulic pump (20), and a vehicle-mounted hydraulic pump oil drain port (203) of the vehicle-mounted hydraulic pump (20) is connected with an overpressure oil drain tank (69) through a vehicle-mounted overpressure hydraulic pump connecting pipe (2031) The first connector (691) of the oil drainage tank is connected, the control valve oil guiding connector (689) of the control valve (68) is connected with the oil drainage tank oil outlet connector (692) of the oil drainage tank (69) through the control valve oil guiding connector connecting pipe (6891), the oil motor oil drainage connector (613) of the foam pump driving oil motor (61) is connected with the second connector (693) of the oil drainage tank (69) through the oil drainage connector pipeline (6131), the worm box driving oil motor oil drainage connector (713) of the worm box driving oil motor (71) is connected with the third connector (694) of the oil drainage tank (69) through the worm box driving oil motor oil drainage connector pipeline (7131), the vehicle-mounted hydraulic pump (20) is in transmission connection with the power takeoff (30) through the transmission shaft (204), and the power takeoff (30) is in transmission connection with the vehicle-mounted power system.

5. The automatic liquid suction device of the liquid supply fire fighting truck as claimed in claim 1, characterized in that a foam tank outlet port assembly (12) is fixed on the front side and/or the rear side of the chassis (1), a foam tank outlet port (121) is provided on the foam tank outlet port assembly (12), the foam tank outlet port (121) is communicated with the foam tank (3), and in the use state, the foam tank outlet port (121) is connected with a foam extinguishing gun pipeline of the foam extinguishing gun.

6. The automatic liquid suction device of the liquid supply fire fighting truck as claimed in claim 4, characterized in that a boom fixing base (84) is fixed at the left end of the boom (8), the suspension arm fixing seat (84) is fixed with the rotary disc (75), and the suspension arm fixing seat (84) forms a liquid suction pipe abdicating cavity (841), the left end of the pipette (5) extends into the pipette clearance cavity (841) and a pipette flange (52) is formed at the left end of the pipette (5), a swivel joint upper flange (651) is formed at the upper end of the swivel joint (65), a swivel joint lower flange (652) is formed at the lower end of the swivel joint (65), the pipette flange (52) is fixedly connected with the swivel joint upper flange (651) at the position corresponding to the pipette matching hole (752), and the lower flange (652) of the swivel joint is connected with the flange of the foam guide pipe valve (631).

7. The automatic pipette device for firefighting vehicle as claimed in claim 1 or 2, characterized in that a telescopic extension tube attaching bracket holder (85) is fixed to the right end of said boom (8), a telescopic extension tube attaching bracket (851) is fixed to each of the front and rear sides of said telescopic extension tube attaching bracket holder (85), a three-way pipe joint (53) is fixedly connected to the right end of said pipette (5), a pair of said pipette telescopic extension tubes (9) are provided and the left end of said pipette telescopic extension tube (9) is connected to said three-way pipe joint (53) at the position of said telescopic extension tube attaching bracket (851), and the three-way pipe joint (53) is communicated with the pipette (5).

8. The automatic liquid suction device of the liquid supplying fire engine as claimed in claim 2, wherein a hanger fixing seat (811) is fixed to the right end of the auxiliary telescopic arm (81), a hanger (8111) is fixed to each of the front and rear sides of the hanger fixing seat (811), and the middle portion of the liquid suction pipe extension tube (9) is inserted through and supported by the hanger (8111).

9. The automatic liquid suction device of the liquid supply fire engine as claimed in claim 4, wherein a pipeline on-off valve (20211) is arranged on the pipeline of the oil inlet pipe (2021) of the vehicle-mounted hydraulic pump.

10. The automatic liquid suction device of the fire fighting vehicle as defined in claim 1, 2, 3 or 8, characterized in that the telescopic extension tube (9) is a corrugated tube.