Multifunctional fire extinguisher and use method thereof

Abstract

The invention relates to the related field of fire extinguishers, in particular to a multifunctional fire extinguisher and a using method thereof.The multifunctional fire extinguisher comprises a fire extinguisher cylinder, a valve, a nozzle, a handle, a switch, an auxiliary operation device and a bottom supporting assembly. By arranging the auxiliary operation device, when the fire extinguisher is used in a special environment, the positioning mechanism is operated, the rotating block can rotate between the first fixing block and the second fixing block, the auxiliary grip is rotated to be perpendicular to the fire extinguisher cylinder, then auxiliary use can be carried out, and when the fire extinguisher is not used, the positioning mechanism is operated again, the auxiliary grip can be rotationally withdrawn, and the fire extinguisher is convenient to use. The fire extinguisher is simple in structure and small in occupied space, so that the function of the auxiliary grip is added to the fire extinguisher, the fire extinguisher can be used more conveniently and rapidly and is suitable for a complex environment, and meanwhile the auxiliary grip can be freely folded and unfolded, does not occupy space and is convenient and rapid.

Description

Technical Field

[0001] The present invention relates to the field of fire extinguishers, and in particular to a multifunctional fire extinguisher and a use method thereof. Background Art

[0002] A fire extinguisher is a portable fire-fighting tool. Chemicals are placed in the fire extinguisher to put out fires. Fire extinguishers are one of the common fire prevention facilities and are stored in public places or places where fires may occur. Different types of fire extinguishers are filled with different ingredients and are designed for different causes of fire.

[0003] The existing patent publication number is: CN212593620U, which is a new type of multifunctional household fire extinguisher, including a fire extinguisher body, a fire extinguisher nozzle is arranged on the top of the fire extinguisher body, a protective cover is sleeved on the outside of the fire extinguisher nozzle, an upper cover is arranged on the top of the protective cover, a protective mask is arranged on the top of the upper cover, a warning label is arranged on the surface of the fire extinguisher body, a window breaker is arranged on the outside of the bottom end of the fire extinguisher body, a reflector is arranged on the bottom end surface of the fire extinguisher body, and a lighting lamp is installed in the center of the reflector.

[0004] The above existing patents and traditional fire extinguishers have the following problems:

[0005] When using a traditional fire extinguisher, the user can usually only hold the handle on the head of the fire extinguisher. When used in some narrow or inconvenient operating environments, the user can only hold the head handle alone, which is inconvenient to operate and use the fire extinguisher, affecting the fire extinguishing work. In addition, when the fire extinguisher is not in use on a daily basis, it is usually placed in one place. When pedestrians pass by or carry objects and hit the fire extinguisher, it is easy to cause the fire extinguisher to fall over, causing subsequent damage to the fire extinguisher and affecting subsequent use. Summary of the invention

[0006] Therefore, the present invention provides a multifunctional fire extinguisher and a method of using the same to solve the above technical problems.

[0007] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a multifunctional fire extinguisher and a method of using the same, comprising a fire extinguisher cylinder, a valve, a nozzle, a handle, a switch, an auxiliary operating device and a bottom support assembly, wherein the fire extinguisher cylinder is provided with a valve, one side of the valve is provided with a nozzle, and the other side is provided with a handle and a switch, one side of the middle part of the fire extinguisher cylinder is provided with an auxiliary operating device, and a bottom support assembly is installed at the bottom;

[0008] The auxiliary operating device includes a first fixed block, a second fixed block, a rotating block, an auxiliary handle and a positioning mechanism. The first fixed block and the second fixed block are symmetrically installed in the middle of the fire extinguisher cylinder, and a rotating block is rotatably connected between the two. An auxiliary handle is installed on one side of the rotating block, and a positioning mechanism for limiting the rotation of the rotating block is installed on the outer side of the first fixed block.

[0009] Preferably, the edges of the auxiliary handle are rounded.

[0010] Preferably, the positioning mechanism includes a side mounting block, a steering inner cylinder, a first push rod, a pressing plate, a stop plate, a first positioning hole, a second positioning hole, a positioning column and a first spring, the side mounting block is installed on the outside of the first fixed block, the steering inner cylinder passes through the middle of the side mounting block, and the steering inner cylinder synchronously passes through the first fixed block, the second fixed block and the middle of the rotating block for the rotating block to rotate on the first fixed block and the second fixed block, the first push rod passes through the upper and lower sides of the side mounting block, and a pressing plate and a stop plate are respectively installed on the two ends extending out of the side mounting block, the steering inner cylinder passes through the cylinder body of the side mounting block and is respectively provided with a first positioning hole and a second positioning hole, a positioning column is installed in the middle of the stop plate, and the positioning column passes through the middle of one side of the side mounting block and is plugged into and matched with the first positioning hole and the second positioning hole, and the first push rod extends out of the rod body between the side mounting block and the pressing plate and is provided with a first spring.

[0011] Preferably, the first push rods are provided with two at the upper and lower sides of the steering inner cylinder, and the first springs are provided with two corresponding ones.

[0012] Preferably, the first positioning hole and the second positioning hole on the steering inner cylinder are vertically symmetrical.

[0013] Preferably, the bottom support assembly includes a support base, auxiliary legs and a self-propelled mechanism. The support base is installed at the bottom of the fire extinguisher cylinder, and the side of the support base is provided with a slot for placing the auxiliary legs. The auxiliary legs are placed in the slot on the side of the support base and are connected to the self-propelled mechanism installed in the middle of the support base.

[0014] Preferably, the auxiliary legs are provided in no less than three groups.

[0015] Preferably, the self-propelling mechanism includes an inner groove, a pushing frame plate, a bottom pressure plate, an inclined slide groove, a sliding rod, a second pushing rod, a directional block, a guide column and a second spring. The inner groove is provided in the middle portion of the support base, and the pushing frame plates are provided with multiple groups and are placed in the inner groove. The bottom of each group of pushing frame plates extending out of the inner groove is connected to the bottom pressure plate, and the upper end of each group of pushing frame plates is provided with an inclined slide groove, and a sliding rod is slidably connected in the inclined slide groove. The sliding rod is connected to one end of the second pushing rod, and the other end of the second pushing rod passes through the directional block installed inside the support base and is connected to the auxiliary support leg. A guide column is installed at the top of the inner groove, and a second spring is sleeved on the outside of the guide column. The top of the second spring is connected to the top of the inner groove, and the bottom is connected to the middle of the bottom pressure plate.

[0016] Preferably, the top of the inner groove is a trapezoidal structure.

[0017] The present invention provides a method for using a multifunctional fire extinguisher, which specifically comprises the following steps:

[0018] S1 When using a fire extinguisher, hold the handle to lift the extinguisher cylinder, remove the switch hook, and then press the switch to open the valve. The fire extinguishing material inside the extinguisher cylinder passes through the valve and is sprayed out from the nozzle to extinguish the fire;

[0019] S2 When used in a special environment, the fire extinguisher can be operated by the auxiliary operation device. The positioning mechanism is operated to allow the rotating block to rotate between the first fixed block and the second fixed block, and the auxiliary handle is rotated to be perpendicular to the fire extinguisher cylinder, so that the auxiliary use can be performed. When not in use, the positioning mechanism is operated again to allow the auxiliary handle to be rotated and retracted to be parallel to the fire extinguisher cylinder.

[0020] When the S3 positioning mechanism is operated, the pressing plate is pressed, and the first push rod drives the stop plate and the positioning column to move backward, so that the positioning column is separated from the first positioning hole of the steering inner cylinder. At this time, after the steering inner cylinder loses its restriction, the rotating block can rotate between the two sets of fixed blocks along with the rotating inner cylinder, and the auxiliary grip is rotated to a certain degree, and the pressing plate is released. The positioning column is driven to be inserted into the second positioning hole through the elastic reset of the first spring, and the auxiliary grip is positioned. The auxiliary grip can be used to assist the fire extinguisher to operate. When the auxiliary grip needs to be retracted, the positioning mechanism is operated again to retract the auxiliary grip;

[0021] When placing the fire extinguisher, the bottom support assembly of S4 contacts the ground. Through the gravity of the fire extinguisher, the self-propelling mechanism is driven to drive three sets of auxiliary legs to extend from three directions of the support base, thereby increasing the support area of ​​the fire extinguisher cylinder and supporting the fire extinguisher.

[0022] After the S5 self-propelling mechanism is subjected to gravity, the bottom pressure plate is compressed upward by gravity to compress the second spring. After the pushing frame plate moves up, the inclined slide slot slides upward to push the slide rod obliquely. At the same time, the second pushing rod drives the auxiliary legs to extend outward for auxiliary support under the positioning of the directional block. When the fire extinguisher is picked up, after the bottom pressure plate loses gravity, the second spring resets to push the pushing frame plate and the bottom pressure plate downward. The second pushing rod simultaneously drives the auxiliary legs to retract into the support base. At this time, it will not affect the normal use of the fire extinguisher.

[0023] Beneficial effects of the present invention:

[0024] The present invention is provided with an auxiliary operation device. When used in a special environment, the positioning mechanism is operated to make the rotating block rotate between the first fixed block and the second fixed block, and the auxiliary handle is rotated to be perpendicular to the cylinder of the fire extinguisher, so that the auxiliary use can be performed. When not in use, the positioning mechanism is operated again to make the auxiliary handle rotate and retract, so as not to occupy space. Thus, the fire extinguisher is provided with the function of the auxiliary handle, so that the fire extinguisher can be used more conveniently and is suitable for a relatively complex environment. At the same time, the auxiliary handle can be freely retracted and does not occupy space, which is convenient and quick.

[0025] A positioning mechanism is further arranged, in which the pressing plate is pressed, and the first pushing rod drives the stop plate and the positioning column to move backward, so that after the positioning column is disengaged from the positioning hole, the rotating block can be rotated between the two sets of fixed blocks, and the auxiliary handle can be rotated to a certain degree, so that the auxiliary handle can perform auxiliary operations. When the pressing plate is released, the positioning column is reinserted into the positioning hole, and the auxiliary handle is positioned so that the auxiliary handle can be limited to facilitate operation, and can also be positioned after being retracted to prevent the auxiliary handle from moving on its own.

[0026] The present invention provides a bottom support assembly. When placing the fire extinguisher, the bottom support assembly contacts the ground. Through the gravity of the fire extinguisher itself, the self-propelling mechanism is forced to drive three groups of auxiliary legs to extend from three directions of the support base, thereby increasing the support area of ​​the fire extinguisher cylinder, providing a stable support for the fire extinguisher, preventing it from tipping over after being hit, and improving the service life of the fire extinguisher.

[0027] A self-propelling mechanism is further arranged, in which the bottom pressure plate is compressed by gravity and then moves upward and retracts into the inner groove of the support base. The pushing frame plate moves upward synchronously to drive the second pushing rod to be pushed outward, and simultaneously drives three sets of auxiliary legs to extend from three directions for auxiliary support. When the fire extinguisher is lifted, the second spring elastically resets after the bottom pressure plate loses the gravity squeezing, the bottom pressure plate moves downward, and the auxiliary legs are retracted into the support base, which does not affect the use of the fire extinguisher and makes the operation of the fire extinguisher more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 is a front view structural schematic diagram of the auxiliary operation device of the present invention;

[0030] Figure 3 is a rear structural schematic diagram of the auxiliary operation device of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the positioning mechanism of the present invention;

[0032] Figure 5 It is a schematic diagram of the internal structure of the side mounting block of the present invention;

[0033] Figure 6 is a schematic structural diagram of the bottom support assembly of the present invention;

[0034] Figure 7 is a schematic cross-sectional structure diagram of the bottom support assembly of the present invention;

[0035] Figure 8 It is a bottom view structural diagram of the connection between the second push rod and the directional block of the present invention;

[0036] Fig. 9 It is a schematic diagram of the connection structure between the pushing frame plate and the second pushing rod of the present invention.

[0037] Among them: fire extinguisher cylinder-1, valve-2, nozzle-3, handle-4, switch-5, auxiliary operating device-6, bottom support assembly-7, first fixed block-61, second fixed block-62, rotating block-63, auxiliary grip-64, positioning mechanism-65, side mounting block-651, steering inner cylinder-652, first push rod-653, pressing plate-654, stop plate-655, first positioning hole-656, second positioning hole-657, positioning column-658, first spring-659, support base-71, auxiliary support leg-72, self-propelling mechanism-73, inner groove-731, push frame plate-732, bottom pressure plate-733, inclined slide groove-734, slide rod-735, second push rod-736, directional block-737, guide column-738, second spring-739. DETAILED DESCRIPTION

[0038] In order to further explain the technical solution of the present invention, it is described in detail below through specific embodiments.

[0039] like Figure 1 As shown, the present invention provides a multifunctional fire extinguisher and a method for using the same, comprising a fire extinguisher cylinder 1, a valve 2, a nozzle 3, a handle 4, a switch 5, an auxiliary operating device 6 and a bottom support assembly 7. The fire extinguisher cylinder 1 is provided with a valve 2, one side of the valve 2 is provided with a nozzle 3, and the other side is provided with a handle 4 and a switch 5. The auxiliary operating device 6 is provided on one side of the middle of the fire extinguisher cylinder 1, and a bottom support assembly 7 is installed at the bottom;

[0040] Specifically, when using the fire extinguisher, hold the handle 4 to lift the fire extinguisher cylinder 1, unhook the switch 5, and then press the switch 5 to open the valve 2. The fire extinguishing material inside the fire extinguisher cylinder 1 passes through the valve 2 and is sprayed out from the nozzle 3 to extinguish the fire.

[0041] like Figure 2-3As shown, the auxiliary operating device 6 includes a first fixed block 61, a second fixed block 62, a rotating block 63, an auxiliary handle 64 and a positioning mechanism 65. The first fixed block 61 and the second fixed block 62 are symmetrically installed in the middle of the fire extinguisher cylinder 1, and the rotating block 63 is rotatably connected between the two. The auxiliary handle 64 is installed on one side of the rotating block 63, and a positioning mechanism 65 for limiting the rotation of the rotating block 63 is installed on the outer side of the first fixed block 61.

[0042] The edges of the auxiliary grip 64 are rounded to facilitate the user's use and enable the hand to hold it better.

[0043] Specifically, when used in special environments, the fire extinguisher can be assisted in operation through the auxiliary operating device 6. The positioning mechanism 65 is operated to allow the rotating block 63 to rotate between the first fixed block 61 and the second fixed block 62, and the auxiliary handle 64 is rotated to be perpendicular to the fire extinguisher cylinder 1, so that it can be used for auxiliary purposes. When not in use, the positioning mechanism 65 is operated again to allow the auxiliary handle 64 to be rotated and retracted to be parallel to the fire extinguisher cylinder 1.

[0044] like Figure 4-5 As shown, in this embodiment, the positioning mechanism 65 includes a side mounting block 651, a steering inner cylinder 652, a first push rod 653, a pressing plate 654, a stop plate 655, a first positioning hole 656, a second positioning hole 657, a positioning column 658 and a first spring 659. The side mounting block 651 is mounted on the outside of the first fixed block 61, the steering inner cylinder 652 runs through the middle of the side mounting block 651, and the steering inner cylinder 652 simultaneously runs through the middle of the first fixed block 61, the second fixed block 62, and the rotating block 63 for the rotating block 63 to rotate on the first fixed block 61 and the second fixed block 62. It should be noted that the rotating block 63 is fixedly connected to the steering inner cylinder 652, so that the rotating block 63 can be rotated by the steering inner cylinder 652. The cylinder 652 rotates between the first fixing block 61 and the second fixing block 62, the first push rod 653 penetrates the upper and lower sides of the side mounting block 651, and the two ends extending out of the side mounting block 651 are respectively installed with a pressing plate 654 and a stop plate 655, the cylinder body of the turning inner cylinder 652 penetrating the side mounting block 651 is respectively provided with a first positioning hole 656 and a second positioning hole 657, a positioning column 658 is installed in the middle of the stop plate 655, the positioning column 658 penetrates the middle of one side of the side mounting block 651 and is plugged and matched with the first positioning hole 656 and the second positioning hole 657, the first push rod 653 extends out of the rod body between the side mounting block 651 and the pressing plate 654, and a first spring 659 is arranged;

[0045] Among them, two first push rods 653 are provided on the upper and lower sides of the steering inner cylinder 652, and the two first push rods 653 can better enable the pressing plate 654 to perform pressing work, ensuring that the pressing plate 654 is stable and does not deviate, and two first springs 659 are correspondingly provided to better provide elastic force;

[0046] The first positioning hole 656 and the second positioning hole 657 on the steering inner cylinder 652 are vertically symmetrical, so that the positioning column 658 can position the steering inner cylinder 652 after steering;

[0047] Specifically, when operating the positioning mechanism 65, the pressing plate 654 is pressed, and the first push rod 653 drives the stop plate 655 and the positioning column 658 to move backward, so that the positioning column 658 is separated from the first positioning hole 656 of the steering inner cylinder 652. At this time, after the steering inner cylinder 652 loses its restriction, the rotating block 63 can rotate between the two sets of fixed blocks along with the rotating inner cylinder 652, so that the auxiliary grip 64 can rotate 90 degrees. When the auxiliary grip 64 is rotated to be parallel to the fire extinguisher cylinder 1, the pressing plate 654 is released, and the first spring 659 is elastically released. The positioning column 658 is driven to be inserted into the second positioning hole 657 by the reset function, and the auxiliary handle 64 is positioned. The auxiliary handle 64 can then be used to assist in the operation of the fire extinguisher. When the auxiliary handle 64 needs to be retracted, the pressing plate 654 is operated again, and the positioning column 658 is disengaged from the second positioning hole 657. The auxiliary handle 64 is rotated 90 degrees again to be parallel to the fire extinguisher cylinder 1, and the pressing plate 654 is randomly released. The first spring 659 is reset to insert the positioning column 658 into the first positioning hole 656, and the auxiliary handle 64 can be retracted and positioned.

[0048] like Figure 6 As shown, in this embodiment, the bottom support assembly 7 includes a support base 71, an auxiliary support leg 72 and a self-propelling mechanism 73. The support base 71 is installed at the bottom of the fire extinguisher cylinder 1, and a groove for placing the auxiliary support leg 72 is provided on the side of the support base 71. The auxiliary support leg 72 is placed in the groove on the side of the support base 71 and connected to the self-propelling mechanism 73 installed in the middle of the support base 71.

[0049] In this embodiment, three groups of auxiliary legs 72 are provided, and the three groups of auxiliary legs 72 can extend from the support base 71 in three directions to form a triangular support, thereby increasing the support area of ​​the fire extinguisher cylinder 1 and providing a stable support for the fire extinguisher;

[0050] Specifically, when placing the fire extinguisher, the bottom support assembly 7 contacts the ground, and through the weight of the fire extinguisher itself, the self-propelling mechanism 73 is driven to drive the three sets of auxiliary legs 72 to extend from the three directions of the support base 71, thereby increasing the support area of ​​the fire extinguisher cylinder 1 and supporting the fire extinguisher.

[0051] like Figure 7-9As shown, in this embodiment, the self-propelling mechanism 73 includes an inner groove 731, a pushing frame plate 732, a bottom pressure plate 733, an inclined slide groove 734, a slide rod 735, a second pushing rod 736, a directional block 737, a guide column 738 and a second spring 739. The inner groove 731 is provided in the middle of the support base 71, and the pushing frame plates 732 are provided with multiple groups and are placed inside the inner groove 731. The bottom of each group of pushing frame plates 732 extending out of the inner groove 731 is connected to the bottom pressure plate 733, and the upper end of each group of pushing frame plates 732 is provided with an inclined slide groove 734. The inclined slide groove 73 A slide bar 735 is slidably connected in the inner groove 731, and the slide bar 735 is connected to one end of the second push rod 736. The other end of the second push rod 736 passes through a directional block 737 installed inside the support base 71 and is connected to the auxiliary support leg 72. A guide column 738 is installed at the top of the inner groove 731, and a second spring 739 is sleeved on the outer side of the guide column 738. The guide column 738 is used to guide the second spring 739 to prevent the second spring 739 from deviating. The top of the second spring 739 is connected to the top of the inner groove 731, and the bottom is connected to the upper middle part of the bottom pressure plate 733.

[0052] The top of the inner groove 731 is a trapezoidal structure, which facilitates the three sets of push racks 732 to extend into the inner groove 731, so that the push racks 732 can perform telescopic activities better;

[0053] Specifically, after the self-propelling mechanism 73 is subjected to gravity, the bottom pressure plate 733 is compressed upward by gravity to compress the second spring 739. After the pushing frame 732 moves up, the inclined slide groove 734 slides upward to push the slide rod 735 obliquely out. At the same time, the second pushing rod 736, under the positioning of the directional block 737, drives the auxiliary support leg 72 to extend outward for auxiliary support. When the fire extinguisher is picked up, after the bottom pressure plate 733 loses gravity, the second spring 739 resets to push the pushing frame 732 and the bottom pressure plate 733 downward. The second pushing rod 736 simultaneously drives the auxiliary support leg 72 to be retracted into the support base 71. At this time, it will not affect the normal use of the fire extinguisher.

[0054] The present invention provides a multifunctional fire extinguisher and a method for using the same. By providing an auxiliary operation device, when used in a special environment, the positioning mechanism 65 is operated to allow the rotating block 63 to rotate between the first fixed block 61 and the second fixed block 62, and the auxiliary grip 64 is rotated to be perpendicular to the fire extinguisher cylinder 1, so that the fire extinguisher can be used for auxiliary purposes. When not in use, the positioning mechanism 65 is operated again to allow the auxiliary grip 64 to be rotated and retracted without occupying space, thereby adding the function of the auxiliary grip to the fire extinguisher, making the fire extinguisher more convenient to use and suitable for a relatively complex environment. At the same time, the auxiliary grip 64 can also be freely retracted. The positioning mechanism 65 is set, presses the pressing plate 654, and the first pushing rod 653 drives the stop plate 655 and the positioning column 658 to move backward, so that the positioning column 658 is disengaged from the positioning hole, and the rotating block 63 can be rotated between the two sets of fixed blocks, and the auxiliary grip 64 can be rotated 90 degrees, so that the auxiliary grip can be used for auxiliary operation, and the pressing plate 654 is released. The positioning column 658 is reinserted into the positioning hole to position the auxiliary grip 64, so that the auxiliary grip 64 can be limited, which is convenient for operation, and can also be positioned after being retracted to prevent the auxiliary grip 64 from moving by itself.

[0055] The present invention is provided with a bottom support assembly 7. When the fire extinguisher is placed, the bottom support assembly 7 contacts the ground. Through the gravity of the fire extinguisher itself, the self-propelling mechanism 73 is forced to drive the three groups of auxiliary legs 72 to extend from the three directions of the support base 71. After increasing the support area of ​​the fire extinguisher cylinder 1, the fire extinguisher is stably supported to prevent it from tipping over after being hit, thereby improving the service life of the fire extinguisher. The self-propelling mechanism 73 is provided. After the bottom pressure plate 733 is compressed by gravity, the second spring 739 is moved upward and retracted into the inner groove 731 of the support base 71. The pushing frame plate 732 is synchronously moved upward to drive the second pushing rod 736 to be pushed outward, and the three groups of auxiliary legs 72 are synchronously driven to extend from three directions for auxiliary support. When the fire extinguisher is lifted, the bottom pressure plate 733 loses the gravity compression and the second spring 739 is elastically reset. The bottom pressure plate 733 moves downward, and the auxiliary legs 72 are retracted into the support base 71, which does not affect the use of the fire extinguisher and makes the operation of the fire extinguisher more convenient.

[0056] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multifunctional fire extinguisher, characterized in that: It includes a fire extinguisher cylinder, a valve, a nozzle, a handle, a switch, an auxiliary operating device and a bottom support assembly. The fire extinguisher cylinder is provided with a valve, one side of the valve is provided with a nozzle, and the other side is provided with a handle and a switch. The middle side of the fire extinguisher cylinder is provided with an auxiliary operating device, and the bottom is installed with a bottom support assembly; The auxiliary operating device includes a first fixed block, a second fixed block, a rotating block, an auxiliary handle and a positioning mechanism. The first fixed block and the second fixed block are symmetrically installed in the middle of the fire extinguisher cylinder, and a rotating block is rotatably connected between the two. An auxiliary handle is installed on one side of the rotating block, and a positioning mechanism for limiting the rotation of the rotating block is installed on the outer side of the first fixed block.

2. A multifunctional fire extinguisher according to claim 1, characterized in that: The edges of the auxiliary handle are rounded.

3. A multifunctional fire extinguisher according to claim 1, characterized in that: The positioning mechanism includes a side mounting block, a steering inner cylinder, a first push rod, a pressing plate, a stop plate, a first positioning hole, a second positioning hole, a positioning column and a first spring. The side mounting block is installed on the outside of the first fixed block, the steering inner cylinder passes through the middle of the side mounting block, and the steering inner cylinder synchronously passes through the first fixed block, the second fixed block, and the middle of the rotating block for the rotating block to rotate on the first fixed block and the second fixed block. The first push rod passes through the upper and lower sides of the side mounting block, and a pressing plate and a stop plate are respectively installed on the two ends extending out of the side mounting block. The steering inner cylinder passes through the cylinder body of the side mounting block and is respectively provided with a first positioning hole and a second positioning hole. The middle part of the stop plate is provided with a positioning column. The positioning column passes through the middle of one side of the side mounting block and is plugged into and matched with the first positioning hole and the second positioning hole. The first push rod extends out of the rod body between the side mounting block and the pressing plate and is provided with a first spring.

4. A multifunctional fire extinguisher according to claim 3, characterized in that: The first push rods are provided with two at the upper and lower sides of the steering inner cylinder, and the first springs are provided with two corresponding ones.

5. A multifunctional fire extinguisher according to claim 3, characterized in that: The first positioning hole and the second positioning hole on the steering inner cylinder are vertically symmetrical.

6. A multifunctional fire extinguisher according to claim 1, characterized in that: The bottom support assembly includes a support base, auxiliary legs and a self-propelled mechanism. The support base is installed at the bottom of the fire extinguisher cylinder, and the side of the support base is provided with a slot for placing the auxiliary legs. The auxiliary legs are placed in the slot on the side of the support base and are connected to the self-propelled mechanism installed in the middle of the support base.

7. A multifunctional fire extinguisher according to claim 6, characterized in that: The auxiliary legs are provided in no less than three groups.

8. A multifunctional fire extinguisher according to claim 7, characterized in that: The self-propelling mechanism comprises an inner groove, a pushing frame plate, a bottom pressure plate, an inclined slide groove, a sliding rod, a second pushing rod, a directional block, a guide column and a second spring, an inner groove is provided in the middle portion of the support base, and the pushing frame plates are provided with multiple groups and are placed in the inner groove, each group of the pushing frame plates extending out of the bottom of the inner groove are connected to the bottom pressure plate, and each group of the pushing frame plates The upper end is provided with an inclined slide groove, and a sliding rod is slidably connected in the inclined slide groove, and the sliding rod is connected to one end of the second pushing rod, and the other end of the second pushing rod passes through the directional block installed inside the support base and is connected to the auxiliary support leg, a guide column is installed at the top of the inner groove, and a second spring is sleeved on the outer side of the guide column, the top of the second spring is connected to the top of the inner groove, and the bottom is connected to the middle of the bottom pressure plate.

9. A multifunctional fire extinguisher according to claim 8, characterized in that: The top of the inner tank is a trapezoidal structure.

10. A method for using a multifunctional fire extinguisher according to any one of claims 1 to 9, characterized in that: The specific steps include: S1 When using a fire extinguisher, hold the handle to lift the extinguisher cylinder, remove the switch hook, and then press the switch to open the valve. The fire extinguishing material inside the extinguisher cylinder passes through the valve and is sprayed out from the nozzle to extinguish the fire; S2 When used in a special environment, the fire extinguisher can be operated by the auxiliary operation device. The positioning mechanism is operated to allow the rotating block to rotate between the first fixed block and the second fixed block, and the auxiliary handle is rotated to be perpendicular to the cylinder of the fire extinguisher, so that the auxiliary use can be performed. When not in use, the positioning mechanism is operated again to allow the auxiliary handle to be rotated and retracted to be parallel to the cylinder of the fire extinguisher. When the S3 positioning mechanism is operated, the pressing plate is pressed, and the first push rod drives the stop plate and the positioning column to move backward, so that the positioning column is separated from the first positioning hole of the steering inner cylinder. At this time, after the steering inner cylinder loses its restriction, the rotating block can rotate between the two sets of fixed blocks along with the rotating inner cylinder, and the auxiliary grip is rotated to a certain degree, and the pressing plate is released. The positioning column is driven to be inserted into the second positioning hole through the elastic reset of the first spring, and the auxiliary grip is positioned. The auxiliary grip can be used to assist the fire extinguisher to operate. When the auxiliary grip needs to be retracted, the positioning mechanism is operated again to retract the auxiliary grip; When placing the fire extinguisher, the bottom support assembly of S4 contacts the ground. Through the gravity of the fire extinguisher, the self-propelling mechanism is driven to drive three sets of auxiliary legs to extend from three directions of the support base, thereby increasing the support area of ​​the fire extinguisher cylinder and supporting the fire extinguisher. After the S5 self-propelling mechanism is subjected to gravity, the bottom pressure plate is compressed upward by gravity to compress the second spring. After the pushing frame plate moves up, the inclined slide slot slides upward to push the slide rod obliquely. At the same time, the second pushing rod drives the auxiliary legs to extend outward for auxiliary support under the positioning of the directional block. When the fire extinguisher is picked up, after the bottom pressure plate loses gravity, the second spring resets to push the pushing frame plate and the bottom pressure plate downward. The second pushing rod simultaneously drives the auxiliary legs to retract into the support base. At this time, it will not affect the normal use of the fire extinguisher.

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