Brake system and movable fire extinguishing device

Abstract

The invention discloses a braking system and a movable fire extinguishing device. The braking system comprises a braking unit, a driving unit, a transmission unit and a locking unit, and the braking unit is arranged on the side of a walking wheel; the middle of the driving unit is rotationally connected with a shell of the fire extinguisher body, and one end of the driving unit can alternately reach a first position or a second position in the reciprocating rotation process of the driving unit around a rotating shaft of the driving unit; the upper end of the transmission unit is connected with one end of the driving unit, and the lower end of the transmission unit is connected with the brake unit, so that the reciprocating rotation of the driving unit is converted into the movement that the brake unit gets close to or away from the walking wheel, and when one end of the driving unit reaches a first position, the brake unit is driven by the transmission unit. The brake system has the beneficial effects that the movable fire extinguishing device can be braked through the brake system, the situation that the fire extinguishing device moves is prevented, and the brake system is high in reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguishers, and in particular to a brake system and a mobile fire extinguishing device. Background Art

[0002] A water-based fire extinguisher is suitable for extinguishing initial fires of solids or non-water-soluble liquids, and can extinguish fires of electrical equipment. It is widely used in oil fields, oil depots, ships, factories, shops and other places. It is an essential fire-fighting equipment to prevent fires and protect people's lives and property. After being sprayed, the water-based fire extinguisher becomes water mist, which can instantly evaporate a large amount of heat in the fire scene, quickly reduce the temperature of the fire scene, and suppress heat radiation. The surfactant quickly forms a layer of water film on the surface of the combustible material, isolating oxygen, cooling, and isolating it. It also participates in fire extinguishing, thereby achieving the purpose of rapid fire extinguishing.

[0003] Existing mobile fire extinguishing devices (such as the one disclosed in application number 201621242780.1) can be moved to the fire source according to fire extinguishing needs to extinguish the fire, and the fire extinguishing efficiency is high. However, the mobile fire extinguishing device is not equipped with a corresponding brake system, and the fire extinguishing device is prone to movement. Although a few mobile fire extinguishing devices are equipped with a brake system, the brake system has poor reliability. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and propose a brake system and a mobile fire extinguishing device to solve the technical problems in the prior art that the mobile fire extinguishing devices are not equipped with corresponding brake systems, the fire extinguishing devices are prone to movement, and although a few mobile fire extinguishing devices are equipped with brake systems, the reliability of the brake systems is poor.

[0005] To achieve the above technical objectives, the technical solution of the present invention provides a mobile fire extinguishing device for braking the running wheels of the fire extinguisher body, comprising: a brake unit, which is arranged on the side of the traveling wheel; a drive unit, wherein a central portion is rotatably connected to the housing of the fire extinguisher body, and during the reciprocating rotation of the drive unit about its rotary axis, one end of the drive unit can alternately reach a first position or a second position; a transmission unit, the upper end of which is connected to one end of the driving unit, and the lower end of which is connected to the brake unit, so as to convert the reciprocating rotation of the driving unit into the movement of the brake unit toward or away from the travel wheel, when one end of the driving unit reaches a first position, the brake unit presses against the travel wheel, and when one end of the driving unit reaches a second position, the brake unit releases the travel wheel; The locking unit is connected to the housing and is used to engage with or separate from the driving unit to put the driving unit in a locked or unlocked state.

[0006] Furthermore, the brake unit is arranged at the bottom of the shell and is located on the side of the two concentric walking wheels. It includes multiple mounting brackets, a moving rod and multiple brake pads, each of the mounting brackets is arranged at intervals along the central axis of the two concentric walking wheels, the upper end of each mounting bracket is fixedly connected to the bottom wall of the shell, the moving rod is horizontally arranged and parallel to the central axis of the two concentric walking wheels, the moving rod is slidably connected to the lower end of each mounting bracket and can move in the horizontal direction, one end of each brake pad is fixedly connected to the moving rod, and each brake pad corresponds to the two walking wheels one by one, and the lower end of the transmission unit is connected to the moving rod to convert the reciprocating rotation of the driving unit into movement of the moving rod approaching or moving away from the two walking wheels. When one end of the driving unit reaches the first position, each brake pad is respectively pressed against the two walking wheels, and when one end of the driving unit reaches the second position, each brake pad is respectively released from the two walking wheels.

[0007] Furthermore, the brake unit also includes a plurality of first elastic members, one end of each of the first elastic members is connected to each of the mounting frames one by one, and the other end of each of the first elastic members is connected to the moving rod to apply a force to the moving rod to press against the walking wheel.

[0008] Furthermore, the driving unit is arranged on the side of the shell, and includes a first mounting shaft, a rotating disk, a driving rod and a first connecting shaft. The first mounting shaft is horizontally arranged and perpendicular to the moving rod, and one end of the first mounting shaft is fixedly connected to the side wall of the shell. The rotating disk is rotatably sleeved on the other end of the first mounting shaft, one end of the driving rod is fixedly connected to the rotating disk, the first connecting shaft and the moving rod are perpendicular to each other, and one end of the first connecting shaft is fixedly connected to the other end of the driving rod. The upper end of the transmission unit is connected to the first connecting shaft. During the forward or reverse rotation of the rotating disk around the first mounting shaft, the first connecting shaft can alternately reach the first position or the second position, and the locking unit is used to engage or separate with the rotating disk to put the rotating disk in a locked or unlocked state.

[0009] Furthermore, the driving unit also includes a second elastic member, which is sleeved on the first mounting shaft. The two ends of the second elastic member are respectively connected to the shell and the rotating disk to apply a reverse rotation force to the rotating disk and drive the first connecting shaft to reach the second position.

[0010] Furthermore, the transmission unit includes a mounting plate, a mounting seat, a first transmission rod, a bogie, a second connecting shaft, a third connecting shaft and a second transmission rod, the mounting plate is fixedly connected to the side wall of the shell, the mounting seat is fixedly connected to the bottom wall of the shell, the first transmission rod is vertically arranged on the side of the shell and slides through the mounting plate, the upper end of the first transmission rod is provided with a first connecting groove extending in the horizontal direction, and is slidably connected to the other end of the first connecting shaft via the first connecting groove, the lower end of the first transmission rod is provided with a second connecting groove extending in the horizontal direction, the first end of the bogie is hinged to the mounting seat, the The second connecting shaft is parallel to the moving rod, and one end of the second connecting shaft is fixedly connected to the second end of the bogie, and the other end of the second connecting shaft is slidably connected to the second connecting groove. The third connecting shaft is parallel to the moving rod, and one end of the third connecting shaft is fixedly connected to the third end of the bogie. The second transmission rod is horizontally arranged at the bottom of the shell and is perpendicular to the moving rod. A third connecting groove extending in a vertical direction is provided on one end of the second transmission rod, and is slidably connected to the other end of the third connecting shaft via the third connecting groove. The other end of the second transmission rod is fixedly connected to the moving rod.

[0011] The cam is secured to the second end of the shaft when the cam is in the first position and is secured to the second end of the shaft when the cam is in the first position.

[0012] On the other hand, the present invention also provides a mobile fire extinguishing device, including a fire extinguisher body, the above-mentioned brake system, a spray unit and a winding unit, the fire extinguisher body including multiple running wheels and a shell, each of the running wheels is fixedly connected to the bottom wall of the shell, the shell has a water storage chamber, an equipment chamber and a receiving chamber that are not connected to each other, and the shell is provided with a water inlet and a water outlet connected to the water storage chamber, the spray unit includes a driving pump, a water outlet pipe and a water spray gun, the driving pump is arranged in the equipment chamber, the inlet end of the driving pump is connected to the water outlet, the outlet end of the driving pump is connected to one end of the water outlet pipe, which is used to pump water in the water storage chamber into the water outlet pipe, the inlet end of the water spray gun is connected to the other end of the water outlet pipe, which is used to spray water mist, and the winding unit is used to wind up the water outlet pipe.

[0013] Furthermore, the winding unit includes a winding roller, two limit plates, a fourth elastic member and a self-locking component, the winding roller is horizontally arranged, and one end of the winding roller is located in the receiving chamber and is rotatably connected to the shell, and the other end of the winding roller is rotated to extend out of the shell, and the two limit plates are both arranged in the receiving chamber and are fixedly mounted on the winding roller. A winding area is formed between the two limit plates, and the winding roller located in the winding area is used to wind up the water outlet pipe. During the forward or reverse rotation of the winding roller, the water outlet pipe can be wound up or unwound. The water outlet pipe is a water outlet pipe of the present invention, and the water outlet pipe is a water outlet pipe of the present invention. The water outlet pipe is a water outlet pipe of the present invention, and the water outlet pipe is a water outlet pipe of the present invention. The self-locking component is connected to the shell and the water outlet pipe to put the water outlet pipe in a locked or unlocked state. When the water outlet pipe is in the locked state, the water outlet pipe can only be unwound by rotating in the reverse direction. When the water outlet pipe is in the unlocked state, the water outlet pipe can be unwound by rotating in the reverse direction.

[0014] Furthermore, the self-locking assembly is arranged on the side of the shell, and includes a fixed ring, at least two slide rails, a movable ring, a fixed end face tooth portion, a movable end face tooth portion and a fifth elastic member. The fixed ring is coaxially rotatably sleeved on the winding roller and fixedly connected to the shell. Each of the slide rails is parallel to the winding roller and fixedly connected to the outer arc wall of the winding roller. The movable ring is slidably sleeved on the winding roller. A plurality of sliding grooves are provided on the inner arc wall of the movable ring, and each of the sliding grooves is connected to each of the sliding grooves. The rails are slidably connected in a one-to-one manner, the fixed end face tooth portion is fixedly connected to the end face of the fixed ring, the movable end face tooth portion is fixedly connected to the end face of the movable ring, the fifth elastic member is sleeved on the winding roller, and the two ends of the fifth elastic member are respectively fixedly connected to the winding roller and the movable ring, for applying a force to the movable ring close to the fixed ring so that the movable end face tooth portion is engaged with the fixed end face tooth portion. When the movable end face tooth portion is engaged with the fixed end face tooth portion, the winding roller is in a locked state.

[0015] Compared with the prior art, the beneficial effects of the present invention include: when it is necessary to brake the walking wheel, the locking unit is first separated from the driving unit, and the driving unit is in an unlocked state. The driving unit is then rotated forward, so that one end of the driving unit can reach the first position. Since the transmission unit can convert the forward rotation of the driving unit into the movement of the brake unit close to the walking wheel, when one end of the driving unit reaches the first position, the brake unit can press against the walking wheel to brake the walking wheel. When it is necessary to move the fire extinguisher body, the driving unit is rotated backward, so that one end of the driving unit can reach the second position. Since the transmission unit can convert the reverse rotation of the driving unit into the movement of the brake unit away from the walking wheel, when one end of the driving unit reaches the second position, the brake unit releases the walking wheel and pushes the fire extinguisher body, so that the fire extinguisher body can be moved to any position. The present brake system can be used to brake the mobile fire extinguishing device to prevent the fire extinguishing device from moving, and the present brake system has high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a brake system provided by the present invention when the brake pads are released from the travel wheel; Figure 2 This is a schematic diagram of the three-dimensional structure of a brake system provided by the present invention when the brake pad is pressed against the travel wheel; Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of a brake system in another perspective; Figure 4 yes Figure 2 A magnified view of point A in FIG; Figure 5 yes Figure 2 The enlarged view of point B in FIG. Figure 6 yes Figure 2 The enlarged view of point C in FIG. Figure 7 yes Figure 3 The enlarged view of point D in FIG. Figure 8 This is a schematic diagram of the three-dimensional structure of a mobile fire extinguishing device provided by the present invention; Figure 9 is a schematic diagram of the three-dimensional structure of a mobile fire extinguishing device in FIG8 from another perspective; Figure 10 9 is a schematic diagram of the three-dimensional structure of the winding unit; Figure 11 10 is a schematic diagram of the three-dimensional structure of the winding unit after omitting the limit plate; In the figure: 100 - fire extinguisher body, 110 - walking wheel, 120 - shell, 121 - water storage chamber, 122 - equipment chamber, 123 - receiving chamber, 124 - water inlet, 125 - water outlet, 126 - outlet, 130 - placement rack, 200 - brake unit, 210 - mounting rack, 220 - moving rod, 230 - brake pad, 240 - first elastic member, 300 - drive unit, 310 - first mounting shaft, 320 - rotating disk, 321 - first card slot, 322 - second card slot, 330 - drive rod, 340 - first connecting shaft, 350 - second elastic member, 360 - grip, 400 - transmission unit, 410 - mounting plate, 420 - mounting Seat, 430-first transmission rod, 431-first connecting groove, 432-second connecting groove, 440-bogie, 450-second connecting shaft, 460-third connecting shaft, 470-second transmission rod, 471-third connecting groove, 500-locking unit, 510-second mounting shaft, 520-rotating rod, 530-block, 540-third elastic member, 600-winding unit, 610-winding roller, 620-limiting plate, 630-fourth elastic member, 640-self-locking assembly, 641-fixed ring, 642-slide rail, 643-movable ring, 6431-slide groove, 644-fixed end face tooth portion, 645-movable end face tooth portion, 646-fifth elastic member. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] The present invention provides a mobile fire extinguishing device for braking the running wheels 110 of the fire extinguisher body 100. Figure 1 - Figure 9 As shown, it includes a brake unit 200, a drive unit 300, a transmission unit 400 and a locking unit 500. The brake unit 200 is arranged on the side of the walking wheel 110; the middle part of the drive unit 300 is rotatably connected to the shell 120 of the fire extinguisher body 100. During the reciprocating rotation of the drive unit 300 around its rotating axis, one end of the drive unit 300 can alternately reach the first position or the second position; the upper end of the transmission unit 400 is connected to one end of the drive unit 300, and its lower end is connected to the brake unit 200. , so as to convert the reciprocating rotation of the driving unit 300 into the movement of the brake unit 200 approaching or moving away from the walking wheel 110. When one end of the driving unit 300 reaches the first position, the brake unit 200 presses against the walking wheel 110. When one end of the driving unit 300 reaches the second position, the brake unit 200 releases the walking wheel 110. The locking unit 500 is connected to the housing 120 and is used to engage or separate with the driving unit 300 to put the driving unit 300 in a locked or unlocked state.

[0019] When the walking wheel 110 needs to be braked, the locking unit 500 is first separated from the driving unit 300. At this time, the driving unit 300 is in the unlocked state. Then the driving unit 300 is rotated forward to make one end of the driving unit 300 reach the first position. Since the transmission unit 400 can convert the forward rotation of the driving unit 300 into the movement of the brake unit 200 close to the walking wheel 110, when one end of the driving unit 300 reaches the first position, the brake unit 200 can press against the walking wheel 110 to brake the walking wheel 110. When the fire extinguisher needs to be moved, When the fire extinguisher body 100 is moved, the driving unit 300 is rotated in the reverse direction, so that one end of the driving unit 300 reaches the second position. Since the transmission unit 400 can convert the reverse rotation of the driving unit 300 into the movement of the brake unit 200 away from the running wheel 110, when one end of the driving unit 300 reaches the second position, the brake unit 200 releases the running wheel 110 and pushes the fire extinguisher body 100, so that the fire extinguisher body 100 can be moved to any position. The present brake system can be used to brake the mobile fire extinguishing device to prevent the fire extinguishing device from moving, and the present brake system has high reliability.

[0020] As a preferred embodiment, please refer to Figure 1 and Figure 9The brake unit 200 is arranged at the bottom of the shell 120 and is located on the side of the two concentric walking wheels 110. It includes a plurality of mounting frames 210, a moving rod 220 and a plurality of brake pads 230. Each of the mounting frames 210 is arranged at intervals along the central axis of the two concentric walking wheels 110. The upper end of each mounting frame 210 is fixedly connected to the bottom wall of the shell 120. The moving rod 220 is horizontally arranged and parallel to the central axis of the two concentric walking wheels 110. The moving rod 220 is slidably connected to the lower end of each mounting frame 210 and can move in the horizontal direction. One end of each brake pad 230 is fixedly connected to the moving rod 220, and each brake pad 230 corresponds to the two walking wheels 110 one by one. The lower end of the transmission unit 400 is connected to the moving rod 220 to convert the reciprocating rotation of the drive unit 300 into the moving rod 220 approaching or moving away from the two Movement of the walking wheel 110, when one end of the driving unit 300 reaches the first position, each of the brake pads 230 respectively presses against the two walking wheels 110, and when one end of the driving unit 300 reaches the second position, each of the brake pads 230 respectively releases the two walking wheels 110, and the mounting frame 210 can support and guide the moving rod 220 so that the moving rod 220 moves back and forth along a preset trajectory, and when the moving rod 220 gradually approaches the walking wheel 110, it can drive each of the brake pads 230 gradually approach the walking wheel 110 until each of the brake pads 230 abuts against the wheel surface of the two walking wheels 110, thereby braking the walking wheel 110, and when the moving rod 220 gradually moves away from the walking wheel 110, it can drive each of the brake pads 230 gradually away from the walking wheel 110 until each of the brake pads 230 is separated from the wheel surface of the two walking wheels 110.

[0021] As a preferred embodiment, please refer to Figure 1 and Figure 3 The brake unit 200 also includes a plurality of first elastic members 240, one end of each of the first elastic members 240 is connected to each of the mounting frames 210 in a one-to-one correspondence, and the other end of each of the first elastic members 240 is connected to the moving rod 220 to apply a force to the moving rod 220 to press against the walking wheel 110. When the moving rod 220 gradually approaches the walking wheel 110, each of the first elastic members 240 can release the compressive elastic potential energy. When each of the brake pads 230 abuts against the wheel surface of the two walking wheels 110, each of the first elastic members 240 can apply a compressive elastic force to the moving rod 220, thereby improving the pressing effect of each of the brake pads 230 against the wheel surface of the two walking wheels 110 and improving the braking effect.

[0022] As a preferred embodiment, please refer to Figure 1 Each of the mounting frames 210 is a U-shaped frame, and the first elastic member 240 is a first spring. Each of the first springs is correspondingly mounted on the cross bar of each of the U-shaped frames, so that the cross bar of the U-shaped frame can play a guiding and limiting role for the first spring.

[0023] As a preferred embodiment, please refer to Figure 1 and Figure 9The driving unit 300 is arranged on the side of the shell 120, and includes a first mounting shaft 310, a rotating disk 320, a driving rod 330 and a first connecting shaft 340. The first mounting shaft 310 is arranged horizontally and is perpendicular to the moving rod 220, and one end of the first mounting shaft 310 is fixedly connected to the side wall of the shell 120, the rotating disk 320 is rotatably sleeved on the other end of the first mounting shaft 310, one end of the driving rod 330 is fixedly connected to the rotating disk 320, the first connecting shaft 340 is perpendicular to the moving rod 220, and one end of the first connecting shaft 340 is fixedly connected to the moving rod 220. The first end of the transmission unit 400 is fixedly connected to the other end of the driving rod 330, and the upper end of the transmission unit 400 is connected to the first connecting shaft 340. During the forward or reverse rotation of the rotating disk 320 around the first mounting shaft 310, the first connecting shaft 340 can alternately reach the first position or the second position. The locking unit 500 is used to engage or separate with the rotating disk 320 to put the rotating disk 320 in a locked or unlocked state. When the walking wheel 110 needs to be braked, the locking unit 500 is first separated from the rotating disk 320. At this time, the rotating disk 320 is in an unlocked state, and then the rotating disk 320 is manually engaged or separated. Rotating the rotating disk 320 can drive the driving rod 330 to rotate forward, so that the first connecting shaft 340 reaches the first position. Since the transmission unit 400 can convert the forward rotation of the first connecting shaft 340 into the movement of the moving rod 220 close to the walking wheel 110, when the first connecting shaft 340 reaches the first position, each of the brake pads 230 can press against the two walking wheels 110 to brake the two walking wheels 110, and then the locking unit 500 is engaged with the rotating disk 320. At this time, the rotating disk 320 is in a locked state. When the fire extinguisher needs to be moved When the fire extinguisher body 100 is in operation, the locking unit 500 is first separated from the rotating disk 320. At this time, the rotating disk 320 is in an unlocked state. Then, the rotating disk 320 is manually rotated in the reverse direction to make the first connecting shaft 340 reach the second position. Since the transmission unit 400 can convert the reverse rotation of the first connecting shaft 340 into the movement of the moving rod 220 away from the walking wheel 110, when the first connecting shaft 340 reaches the second position, each of the brake pads 230 releases the two walking wheels 110, pushing the fire extinguisher body 100, and the fire extinguisher body 100 can be moved to any position.

[0024] As a preferred embodiment, please refer to Figure 3The driving unit 300 also includes a second elastic member 350, which is sleeved on the first mounting shaft 310. The two ends of the second elastic member 350 are respectively connected to the housing 120 and the rotating disk 320 to apply a reverse rotation force to the rotating disk 320 and drive the first connecting shaft 340 to reach the second position. When the fire extinguisher body 100 needs to be moved, the locking unit 500 is first separated from the rotating disk 320. At this time, the rotating disk 320 is in an unlocked state. The rotating disk 320 rotates in the opposite direction under the action of the second elastic member 350 until the first connecting shaft 340 reaches the second position. There is no need to manually rotate the rotating disk 320 in the opposite direction.

[0025] As a preferred embodiment, the second elastic member 350 is a first torsion spring.

[0026] As a preferred embodiment, please refer to Figure 1 The driving unit 300 further includes a grip 360 , one end of which is fixedly connected to the rotating disk 320 . A person holding the grip 360 can drive the rotating disk 320 to rotate forward or reverse.

[0027] As a preferred embodiment, please refer to Figure 1 - Figure 9The transmission unit 400 includes a mounting plate 410, a mounting seat 420, a first transmission rod 430, a bogie 440, a second connecting shaft 450, a third connecting shaft 460 and a second transmission rod 470. The mounting plate 410 is fixedly connected to the side wall of the shell 120, and the mounting seat 420 is fixedly connected to the bottom wall of the shell 120. The first transmission rod 430 is vertically arranged on the side of the shell 120 and slides through the mounting plate 410. The upper end of the first transmission rod 430 is provided with a first connecting groove 431 extending in the horizontal direction, and is slidably connected to the other end of the first connecting shaft 340 through the first connecting groove 431. The lower end of the first transmission rod 430 is provided with a first connecting groove 431 extending in the horizontal direction. The second connecting slot 432 is extended, the first end of the bogie 440 is hinged to the mounting seat 420, the second connecting shaft 450 is parallel to the moving rod 220, and one end of the second connecting shaft 450 is fixedly connected to the second end of the bogie 440, the other end of the second connecting shaft 450 is slidably connected to the second connecting slot 432, the third connecting shaft 460 is parallel to the moving rod 220, and one end of the third connecting shaft 460 is fixedly connected to the third end of the bogie 440, the second transmission rod 470 is horizontally arranged at the bottom of the shell 120 and is perpendicular to the moving rod 220, and a third connecting shaft extending in the vertical direction is provided on one end of the second transmission rod 470 The second end of the second transmission rod 470 is fixedly connected to the moving rod 220. When the walking wheel 110 needs to be braked, the locking unit 500 is first separated from the rotating disk 320. At this time, the rotating disk 320 is in an unlocked state. The handle 360 ​​is held by hand and rotated downward to drive the rotating disk 320 to rotate forward. The driving rod 330 follows the rotating disk 320 to rotate forward. Under the cooperation between the first connecting shaft 340 and the first connecting groove 431 and the restriction of the first transmission rod 430 by the mounting plate 410, the first The transmission rod 430 will move upward. When the first transmission rod 430 moves upward, the bogie 440 will be driven to rotate in the opposite direction under the cooperation between the second connecting shaft 450 and the second connecting groove 432. When the bogie 440 rotates in the opposite direction, the second transmission rod 470 will drive the moving rod 220 to approach the two running wheels 110 under the cooperation between the third connecting shaft 460 and the third connecting groove 471 and the restriction of each mounting frame 210 on the moving rod 220. Until the first connecting shaft 340 reaches the first position, each brake pad 230 is pressed against the two running wheels 110, and then one end of the locking unit 500 is engaged with the rotating disk 320.To put the rotating disk 320 in a locked state, when it is necessary to move the fire extinguisher body 100, first separate the locking unit 500 from the rotating disk 320. At this time, the rotating disk 320 is in an unlocked state. Grip the handle 360 ​​and rotate the handle 360 ​​upward to drive the rotating disk 320 to rotate in the opposite direction. The driving rod 330 rotates in the opposite direction following the rotating disk 320. Under the cooperation between the first connecting shaft 340 and the first connecting groove 431 and the restriction of the first transmission rod 430 by the mounting plate 410, the first transmission rod 430 will move downward. When the first transmission rod 430 moves downward, the second connecting shaft 340 is engaged with the first connecting groove 431. The cooperation between the shaft 450 and the second connecting slot 432 drives the bogie 440 to rotate forward. When the bogie 440 rotates forward, the cooperation between the third connecting shaft 460 and the third connecting slot 471 and the restriction of the mobile rod 220 by each mounting frame 210 cause the second transmission rod 470 to drive the mobile rod 220 away from the two running wheels 110 until the first connecting shaft 340 reaches the second position. The brake pads 230 are then separated from the two running wheels 110. Then, one end of the locking unit 500 is engaged with the rotating disk 320, so that the rotating disk 320 is in a locked state.

[0028] As a preferred embodiment, please refer to Figure 7The first and second slots 321 and 322 are provided on the arc-shaped wall of the rotating disk 320. The locking unit 500 is arranged above the rotating disk 320, and includes a second mounting shaft 510, a rotating rod 520, a block 530 and a third elastic member 540. The second mounting shaft 510 is arranged horizontally and is perpendicular to the moving rod 220. One end of the second mounting shaft 510 is fixedly connected to the side wall of the housing 120. The middle part of the rotating rod 520 is rotatably sleeved on the other end of the second mounting shaft 510. The block 530 is fixed to one end of the rotating rod 520. When the rotating rod 520 rotates forward or reverse around the second mounting shaft 510, the clamping block 530 can move away from or approach the rotating disk 320. The third elastic member 540 is sleeved on the second mounting shaft 510. The two ends of the third elastic member 540 are respectively connected to the housing 120 and the rotating rod 520 to apply a reverse rotation force to the rotating rod 520 and drive the clamping block 530 to press against the arc wall of the rotating disk 320. When the first connecting shaft 340 reaches the first position, the clamping block 530 is clamped in the second clamping groove 322. When the first connecting shaft 340 reaches the first position, the clamping block 530 is clamped in the second clamping groove 322. When the first connecting shaft 340 reaches the second position, the card block 530 is inserted into the first card slot 321. In the initial position, the rotating disk 320 is elastically acted on by the second elastic member 350, so that the first connecting shaft 340 reaches the second position. At this time, the card block 530 is inserted into the first card slot 321 under the elastic force of the third elastic member 540. The rotating disk 320 is in a locked state. Each of the brake pads 230 is separated from the two walking wheels 110. The fire extinguisher body 100 can be moved at will. When the walking wheels 110 need to be braked, the hand is held The rotating rod 520 is rotated forwardly to move the block 530 out of the second slot 322, and then the rotating disk 320 is manually rotated forwardly to make the first connecting shaft 340 reach the first position. At this time, the rotating rod 520 is released, and the rotating rod 520 rotates in the opposite direction under the elastic force of the third elastic member 540 until the block 530 is stuck in the second slot 322. The rotating disk 320 is in a locked state, each of the brake pads 230 is pressed against the two walking wheels 110, and the fire extinguisher body 100 is in a braking state.

[0029] As a preferred embodiment, the third elastic member 540 is a second torsion spring.

[0030] Please refer to Figure 8 and Figure 9Based on the above-mentioned brake system, the present invention also provides a mobile fire extinguishing device, including a fire extinguisher body 100, the above-mentioned brake system, a spray unit, and a reel unit 600. The fire extinguisher body 100 includes a plurality of running wheels 110 and a shell 120. Each of the running wheels 110 is fixedly connected to the bottom wall of the shell 120. The shell 120 has a water storage chamber 121, an equipment chamber 122, and a receiving chamber 123 that are not connected to each other. The shell 120 is provided with a water inlet 124 and a water outlet 125 that are connected to the water storage chamber 121. The spray unit includes a drive pump, a water outlet pipe, and a water spray gun. The driving pump is arranged in the equipment cavity 122, the inlet end of the driving pump is communicated with the water outlet 125, and the outlet end of the driving pump is communicated with one end of the water outlet pipe, which is used to pump the water in the water storage cavity 121 into the water outlet pipe, and the inlet end of the water spray gun is communicated with the other end of the water outlet pipe, which is used to spray water mist, and the winding unit 600 is used to wind up the water outlet pipe. When the mobile fire extinguishing device is moved to the preset position, the water spray gun is held and aimed at the fire source, and the switch button on the fire spray gun is pressed to start the driving pump. The driving pump draws out the water in the water storage cavity 121 and sprays it in the form of water mist through the water spray gun. The winding unit 600 can wind up the water outlet pipe to prevent the water outlet pipe from being placed in the shell 120 in a disorderly manner. The mobile fire extinguishing device can perform fire extinguishing or cleaning work.

[0031] As a preferred embodiment, please refer to Figure 8 The fire extinguisher body 100 further includes a placement rack 130 , which is a U-shaped rack fixedly connected to the side wall of the shell 120 and is used for placing the water spray gun.

[0032] As a preferred embodiment, please refer to Figure 10 and Figure 11The winding unit 600 includes a winding roller 610, two limit plates 620, a fourth elastic member 630 and a self-locking assembly 640. The winding roller 610 is arranged horizontally, and one end of the winding roller 610 is located in the receiving cavity 123 and is rotatably connected to the shell 120. The other end of the winding roller 610 is rotated and extended out of the shell 120. The two limit plates 620 are both arranged in the receiving cavity 123 and are fixedly mounted on the winding roller 610. A winding area is formed between the limit plates 620, and the winding roller 610 located in the winding area is used to wind up the water outlet pipe. During the forward or reverse rotation of the winding roller 610, the water outlet pipe can be wound up or unwound. The fourth elastic member 630 is arranged on the outside of one of the limit plates 620 and is sleeved on the winding roller 610. The two ends of the fourth elastic member 630 are respectively fixedly connected to the housing 120 and the corresponding limit plate 620, which is used to wind up the water outlet pipe. The roller 610 applies a forward rotation force to make the winding roller 610 reel the water outlet pipe. The self-locking component 640 is connected to the housing 120 and the winding roller 610 so that the winding roller 610 is in a locked or unlocked state. When the winding roller 610 is in a locked state, the winding roller 610 can only rotate in the reverse direction to unwind. When the winding roller 610 is in an unlocked state, the winding roller 610 can rotate forward to rewind. When using the water spray gun, hold the water spray gun The water outlet pipe can be dragged to make the winding roller 610 rotate in the opposite direction to unwind, and the water outlet pipe can be unwound to a required length according to actual needs. When the water outlet pipe needs to be rewound, the self-locking component 640 is operated to put the winding roller 610 in an unlocked state. At this time, the winding roller 610 rotates forward under the elastic force of the fourth elastic member 630 to rewind the water outlet pipe, thereby realizing self-rewinding of the water outlet pipe. No manual operation is required, and no driving member needs to be set, which is easy to operate.

[0033] As a preferred embodiment, the fourth elastic member 630 is a third torsion spring.

[0034] As a preferred embodiment, please refer to Figure 8 The shell 120 is provided with a pipe outlet 126 that is in communication with the receiving cavity 123 . The pipe outlet 126 is used for the water outlet pipe in the receiving cavity 123 to pass through.

[0035] As a preferred embodiment, please refer to Figure 11The self-locking assembly 640 is arranged on the side of the housing 120, and includes a fixed ring 641, at least two slide rails 642, a movable ring 643, a fixed end face tooth portion 644, a movable end face tooth portion 645 and a fifth elastic member 646. The fixed ring 641 is coaxially rotatably sleeved on the winding roller 610 and fixedly connected to the housing 120. Each of the slide rails 642 is parallel to the winding roller 610 and is fixedly connected to the outer arc wall of the winding roller 610. The movable ring 643 The fifth elastic member 646 is sleeved on the winding roller 610, and a plurality of slide grooves 6431 are provided on the inner arc wall of the movable ring 643, and are slidably connected with each of the slide rails 642 via each of the slide grooves 6431. The fixed end face tooth portion 644 is fixedly connected to the end face of the fixed ring 641, and the movable end face tooth portion 645 is fixedly connected to the end face of the movable ring 643. The fifth elastic member 646 is sleeved on the winding roller 610, and the two ends of the fifth elastic member 646 are respectively connected to the winding roller. 610 and the movable ring 643 are fixedly connected, and are used to apply a force to the movable ring 643 to approach the fixed ring 641, so that the movable end face tooth portion 645 is engaged with the fixed end face tooth portion 644. When the movable end face tooth portion 645 is engaged with the fixed end face tooth portion 644, the winding roller 610 is in a locked state. In the initial state, the movable ring 643 will approach the fixed ring 641 under the elastic action of the fifth elastic member 646, and the movable end face tooth portion 645 is engaged with the fixed end face tooth portion 644. The fixed end face tooth portion 644 is engaged. At this time, the winding roller 610 is in a locked state. The winding roller 610 can only rotate in the reverse direction to unwind, and cannot rotate in the forward direction to rewind. When the water outlet pipe needs to be reeled in, the movable ring 643 is manually pulled to move the movable ring 643 away from the fixed ring 641. The movable end face tooth portion 645 is separated from the fixed end face tooth portion 644. The winding roller 610 automatically rotates in the forward direction to rewind the water outlet pipe under the elastic force of the fourth elastic member 630.

[0036] As a preferred embodiment, please refer to Figure 11The fixed end face tooth portion 644 and the movable end face tooth portion 645 are both tooth portions of annular structure, and the two groove walls of each tooth groove of the fixed end face tooth portion 644 and the movable end face tooth portion 645 are respectively an inclined wall and a straight wall, and each of the inclined walls on the movable end face tooth portion 645 is slidably connected with each of the inclined walls on the fixed end face tooth portion 644 in a one-to-one correspondence, and each of the straight walls on the movable end face tooth portion 645 is abutted against each of the straight walls on the fixed end face tooth portion 644 in a one-to-one correspondence, so that each of the inclined walls on the movable end face tooth portion 645 can slide relative to each of the inclined walls on the fixed end face tooth portion 644 to achieve reverse rotation, and each of the straight walls on the fixed end face tooth portion 644 can block each of the straight walls on the movable end face tooth portion 645 to prevent forward rotation.

[0037] As a preferred embodiment, the fifth elastic member 646 is a second spring.

[0038] In order to better understand the present invention, the following Figure 1 - Figure 11 The working principle of the technical solution of the present invention is described in detail: In the initial position, the rotating disk 320 is in the elastic force of the second elastic member 350, so that the first connecting shaft 340 reaches the second position. At this time, the block 530 is stuck in the first slot 321 under the elastic force of the third elastic member 540, and the rotating disk 320 is in a locked state. Each of the brake pads 230 is separated from the two running wheels 110, and the fire extinguisher body 100 can be moved at will. When it is necessary to brake the running wheels 110, hold the rotating rod 520 and rotate the rotating rod 520 forward to move the block 530 out of the first slot 321, then hold the handle 360 ​​and rotate the handle 360 ​​downward to drive the rotating disk 3 20 rotates forward, the driving rod 330 rotates forward along with the rotating disk 320, and under the cooperation between the first connecting shaft 340 and the first connecting groove 431 and the limiting effect of the mounting plate 410 on the first transmission rod 430, the first transmission rod 430 moves upward. When the first transmission rod 430 moves upward, under the cooperation between the second connecting shaft 450 and the second connecting groove 432, the bogie 440 is driven to rotate in the opposite direction. When the bogie 440 rotates in the opposite direction, under the cooperation between the third connecting shaft 460 and the third connecting groove 471 and the limiting effect of each of the mounting frames 210 on the moving rod 220, the second transmission rod 470 drives the moving rod 22 0 is moved closer to the two running wheels 110 until the first connecting shaft 340 reaches the first position, and each of the brake pads 230 is pressed against the two running wheels 110. At this time, the rotating rod 520 is released, and the rotating rod 520 rotates in the opposite direction under the elastic force of the third elastic member 540 until the block 530 is stuck in the second slot 322. The rotating disk 320 is in a locked state, and each of the brake pads 230 is maintained in a state of pressing against the two running wheels 110. The fire extinguisher body 100 is in a braking state. When it is necessary to move the fire extinguisher body 100, the rotating rod 520 is held by hand and rotated forward to move the block 530 from the second slot 322, the rotating disk 320 is in the unlocked state, and the rotating disk 320 rotates in the opposite direction under the force of the second elastic member 350 until the first connecting shaft 340 reaches the second position, and each of the brake pads 230 is separated from the two walking wheels 110, and then the rotating rod 520 is released. The rotating rod 520 rotates in the opposite direction under the elastic force of the third elastic member 540, and the clamping block 530 is clamped into the second clamping groove 322. The rotating disk 320 is in the locked state, and each of the brake pads 230 is maintained in a state separated from the two walking wheels 110. The fire extinguisher body 100 can be moved to any position. The present brake system can be used to brake the mobile fire extinguishing device.This prevents the fire extinguishing device from moving, and the brake system has high reliability. When the water spray gun needs to be used, the water spray gun can be held and the water outlet pipe can be dragged to rotate the winding roller 610 in the opposite direction to unwind. The water outlet pipe can be unwound to a required length according to actual needs. When the water outlet pipe needs to be reeled in, the movable ring 643 is manually pulled to separate the movable ring 643 from the fixed ring 641. The movable end face tooth portion 645 separates from the fixed end face tooth portion 644. The winding roller 610 automatically rotates forward under the elastic force of the fourth elastic member 630 to rewind the water outlet pipe, thereby achieving self-rewinding of the water outlet pipe. No manual operation is required, and no driving member is required, making the operation convenient.

[0039] The brake system and mobile fire extinguishing device provided by the present invention have the following beneficial effects: (1) This brake system can brake the mobile fire extinguishing device to prevent it from moving, and the brake system has high reliability; (2) This mobile fire extinguishing device can be used for fire extinguishing or cleaning work; (3) The mobile fire extinguishing device can realize the self-reeling of the water outlet pipe without manual operation or the need to set up a driving part, and is easy to operate.

[0040] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A brake system for braking the running wheels of a fire extinguisher body, characterized in that: include: a brake unit, which is arranged on the side of the traveling wheel; a drive unit, wherein a central portion is rotatably connected to the housing of the fire extinguisher body, and during the reciprocating rotation of the drive unit about its rotary axis, one end of the drive unit can alternately reach a first position or a second position; a transmission unit, the upper end of which is connected to one end of the driving unit, and the lower end of which is connected to the brake unit, so as to convert the reciprocating rotation of the driving unit into the movement of the brake unit toward or away from the travel wheel, when one end of the driving unit reaches a first position, the brake unit presses against the travel wheel, and when one end of the driving unit reaches a second position, the brake unit releases the travel wheel; The locking unit is connected to the housing and is used to engage with or disengage from the driving unit to put the driving unit in a locked or unlocked state.

2. The brake system according to claim 1, characterized in that: The brake unit is arranged at the bottom of the shell and is located on the side of the two concentric walking wheels. It includes multiple mounting brackets, a moving rod and multiple brake pads, each mounting bracket is arranged at intervals along the central axis of the two concentric walking wheels, and the upper end of each mounting bracket is fixedly connected to the bottom wall of the shell, the moving rod is horizontally arranged and parallel to the central axis of the two concentric walking wheels, the moving rod is slidably connected to the lower end of each mounting bracket and can move in the horizontal direction, one end of each brake pad is fixedly connected to the moving rod, and each brake pad corresponds to the two walking wheels one by one, and the lower end of the transmission unit is connected to the moving rod to convert the reciprocating rotation of the driving unit into the movement of the moving rod approaching or moving away from the two walking wheels. When one end of the driving unit reaches the first position, each brake pad is respectively pressed against the two walking wheels, and when one end of the driving unit reaches the second position, each brake pad is respectively released from the two walking wheels.

3. The brake system according to claim 2, characterized in that: The brake unit also includes a plurality of first elastic members, one end of each of the first elastic members is connected to each of the mounting frames in a one-to-one correspondence, and the other end of each of the first elastic members is connected to the moving rod to apply a force to the moving rod to press against the walking wheel.

4. The brake system according to claim 2, characterized in that: The driving unit is arranged on the side of the shell, and includes a first mounting shaft, a rotating disk, a driving rod and a first connecting shaft. The first mounting shaft is horizontally arranged and perpendicular to the moving rod, and one end of the first mounting shaft is fixedly connected to the side wall of the shell. The rotating disk is rotatably sleeved on the other end of the first mounting shaft, one end of the driving rod is fixedly connected to the rotating disk, the first connecting shaft and the moving rod are perpendicular to each other, and one end of the first connecting shaft is fixedly connected to the other end of the driving rod. The upper end of the transmission unit is connected to the first connecting shaft. During the forward or reverse rotation of the rotating disk around the first mounting shaft, the first connecting shaft can alternately reach the first position or the second position, and the locking unit is used to engage or separate with the rotating disk to put the rotating disk in a locked or unlocked state.

5. The brake system according to claim 4, characterized in that: The driving unit also includes a second elastic member, which is sleeved on the first mounting shaft. The two ends of the second elastic member are respectively connected to the shell and the rotating disk to apply a reverse rotation force to the rotating disk and drive the first connecting shaft to reach the second position.

6. The brake system according to claim 4, characterized in that: The transmission unit includes a mounting plate, a mounting seat, a first transmission rod, a bogie, a second connecting shaft, a third connecting shaft and a second transmission rod, the mounting plate is fixedly connected to the side wall of the shell, the mounting seat is fixedly connected to the bottom wall of the shell, the first transmission rod is vertically arranged on the side of the shell and slides through the mounting plate, the upper end of the first transmission rod is provided with a first connecting groove extending in the horizontal direction, and is slidably connected to the other end of the first connecting shaft via the first connecting groove, the lower end of the first transmission rod is provided with a second connecting groove extending in the horizontal direction, the first end of the bogie is hinged to the mounting seat, the second The connecting shaft is parallel to the moving rod, and one end of the second connecting shaft is fixedly connected to the second end of the bogie, and the other end of the second connecting shaft is slidably connected to the second connecting groove. The third connecting shaft is parallel to the moving rod, and one end of the third connecting shaft is fixedly connected to the third end of the bogie. The second transmission rod is horizontally arranged at the bottom of the shell and is perpendicular to the moving rod. A third connecting groove extending in a vertical direction is provided on one end of the second transmission rod, and is slidably connected to the other end of the third connecting shaft via the third connecting groove. The other end of the second transmission rod is fixedly connected to the moving rod.

7. The brake system according to claim 4, characterized in that: The first locking groove and the second locking groove are respectively provided on the arc wall of the rotating disk, and the locking unit is arranged above the rotating disk, and includes a second mounting shaft, a rotating rod, a blocking block and a third elastic member, the second mounting shaft is horizontally arranged and perpendicular to the moving rod, and one end of the second mounting shaft is fixedly connected to the side wall of the shell body, the middle of the rotating rod is rotatably sleeved on the other end of the second mounting shaft, and the blocking block is fixedly connected to one end of the rotating rod during the forward or reverse rotation of the rotating rod around the second mounting shaft, the blocking block can move away from or approach the rotating disk, the third elastic member is sleeved on the second mounting shaft, the two ends of the third elastic member are respectively connected to the shell body and the rotating rod to apply a reverse rotation force to the rotating rod and drive the blocking block to press against the arc wall of the rotating disk, when the first connecting shaft reaches the first position, the blocking block is engaged in the second blocking groove, and when the first connecting shaft reaches the second position, the blocking block is engaged in the first blocking groove.

8. A mobile fire extinguishing device, characterized in that: It includes a fire extinguisher body, a brake system as described in claims 1 to 7, a spray unit and a winding unit, the fire extinguisher body includes multiple running wheels and a shell, each of the running wheels is fixedly connected to the bottom wall of the shell, the shell has a water storage chamber, an equipment chamber and a receiving chamber that are not connected to each other, and the shell is provided with a water inlet and a water outlet connected to the water storage chamber. The spray unit includes a driving pump, a water outlet pipe and a water spray gun, the driving pump is arranged in the equipment chamber, the inlet end of the driving pump is connected to the water outlet, the outlet end of the driving pump is connected to one end of the water outlet pipe, which is used to pump water in the water storage chamber into the water outlet pipe, the inlet end of the water spray gun is connected to the other end of the water outlet pipe, which is used to spray water mist, and the winding unit is used to wind up the water outlet pipe.

9. The mobile fire extinguishing device according to claim 8, characterized in that: The reel-up unit comprises a reel-up, two limit plates, a fourth elastic member and a self-locking assembly, the reel-up is horizontally arranged, and one end of the reel-up is located in the accommodating chamber and is rotatably connected to the shell, and the other end of the reel-up is rotated to extend out of the shell, and the two limit plates are both arranged in the accommodating chamber and are fixedly sleeved on the reel-up, a reel-up area is formed between the two limit plates, and the reel-up located in the reel-up area is used to reel in the water outlet pipe, and the reel-up can reel in or unreel the water outlet pipe during forward or reverse rotation. The fourth elastic member is arranged on the outside of one of the limit plates and is sleeved on the winding roller. The two ends of the fourth elastic member are respectively fixedly connected to the shell and the corresponding limit plate, and are used to apply a forward rotation force to the winding roller so that the winding roller reels the water outlet pipe. The self-locking component is connected to the shell and the winding roller to put the winding roller in a locked or unlocked state. When the winding roller is in the locked state, the winding roller can only rotate in the reverse direction to unwind. When the winding roller is in the unlocked state, the winding roller can rotate forward to rewind.

10. The mobile fire extinguishing device according to claim 9, characterized in that: The self-locking assembly is arranged on the side of the shell, and includes a fixed ring, at least two slide rails, a movable ring, a fixed end face tooth portion, a movable end face tooth portion and a fifth elastic member. The fixed ring is coaxially rotatably sleeved on the winding roller and fixedly connected to the shell. Each of the slide rails is parallel to the winding roller and fixedly connected to the outer arc-shaped wall of the winding roller. The movable ring is slidably sleeved on the winding roller. A plurality of slide grooves are opened on the inner arc-shaped wall of the movable ring, and each of the slide grooves is connected to each of the slide rails. A corresponding sliding connection, the fixed end face tooth portion is fixedly connected to the end face of the fixed ring, the movable end face tooth portion is fixedly connected to the end face of the movable ring, the fifth elastic member is sleeved on the winding roller, and the two ends of the fifth elastic member are respectively fixedly connected to the winding roller and the movable ring, for applying a force to the movable ring close to the fixed ring so that the movable end face tooth portion is engaged with the fixed end face tooth portion. When the movable end face tooth portion is engaged with the fixed end face tooth portion, the winding roller is in a locked state.

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