Filling device of water-based fire extinguisher

Abstract

The utility model relates to a filling device of a water-based fire extinguisher, and relates to the technical field of fire extinguishers, the filling device comprises a rack and a fixing mechanism arranged on the rack, a tank body of the fire extinguisher is fixedly placed on the rack through the fixing mechanism, the rack is provided with a liquid filling mechanism, and the liquid filling mechanism is used for filling a fire extinguishing agent into the tank body. The driving assembly is started to drive the sealing cover to move, the sealing cover moves to cover the upper opening of the tank body, meanwhile, the bottom end of the liquid filling pipe extends to the bottom of the tank body, then the vacuum pump is started to enable the pumping space in the tank body to be in a negative pressure pumping state, and finally the fire extinguishing agent is introduced into the tank body through the liquid filling pipe, so that the work of filling the fire extinguishing agent into the tank body is completed.

Description

Technical Field

[0001] The present application relates to the technical field of fire extinguishers, and in particular to a filling device for a water-based fire extinguisher. Background Art

[0002] A water-based fire extinguisher is a fire-fighting equipment that uses water as the main fire extinguishing agent. It enhances the fire extinguishing effect by adding specific agents such as surfactants, flame retardants and additives to water.

[0003] Water-based fire extinguishers need to be filled during the manufacturing process. The existing filling technology usually uses a filling joint to connect with the upper port of the fire extinguisher cylinder and then fill the liquid. However, this process may generate a lot of bubbles, which will have an adverse effect on the filling efficiency and the stability of the fire extinguishing agent. Utility Model Content

[0004] In order to reduce the probability of a large number of bubbles being generated inside a fire extinguisher during filling, the present application provides a filling device for a water-based fire extinguisher.

[0005] The present application provides a filling device for a water-based fire extinguisher, which adopts the following technical solution:

[0006] A filling device for a water-based fire extinguisher comprises a frame and a fixing mechanism arranged on the frame, a tank body of the fire extinguisher is fixedly placed on the frame by the fixing mechanism, a filling mechanism is arranged on the frame, the filling mechanism is used to fill the fire extinguishing agent into the tank body, and the filling mechanism comprises:

[0007] A sealing cover, wherein the sealing cover is vertically slidably disposed on the frame;

[0008] A driving assembly, the driving assembly is arranged on the frame and is used to drive the sealing cover to move, and the sealing cover is vertically downwardly covered with the tank body under the action of the driving assembly;

[0009] A liquid filling pipe, which is arranged on the sealing cover and is a hose. The top end of the liquid filling pipe is located above the sealing cover and is connected to the material tank storing the fire extinguishing agent. The bottom end of the liquid filling pipe is located below the sealing cover. When the sealing cover covers the tank body, the bottom of the liquid filling pipe extends to the bottom of the tank body.

[0010] A vacuum pump is arranged on the sealing cover and is used to evacuate the space below the sealing cover.

[0011] By adopting the above technical scheme, the driving component is started to drive the sealing cover to move, and the sealing cover moves to cover the upper opening of the tank body. At the same time, the bottom end of the filling tube extends to the bottom of the tank body, and then the vacuum pump is started to evacuate the space inside the tank body to a negative pressure state, and finally the fire extinguishing agent is introduced into the tank body through the filling tube, thereby completing the work of filling the tank body with the fire extinguishing agent; by filling from the bottom to the top, the probability of bubbles generated by the impact and collision between the fire extinguishing agents due to gravity is reduced, and at the same time, the gas content in the tank body is reduced by the step of evacuating the negative pressure state in the tank body, thereby reducing the probability of bubbles generated by the fire extinguishing agent in the tank body during filling, thereby improving the filling efficiency and the stability of the fire extinguishing agent.

[0012] Optionally, the driving component includes:

[0013] A driving rod, wherein the driving rod is vertically slidably arranged on the frame, and the sealing cover is arranged at the bottom end of the driving rod;

[0014] A driving rack, wherein the driving rack is arranged on an outer side wall of the driving rod;

[0015] A driving gear, which is rotatably mounted on the frame and meshes with the driving rack;

[0016] A driving motor is arranged on the frame and an output shaft is connected with the driving gear.

[0017] By adopting the above technical solution, the driving motor starts to drive the driving gear to rotate, the driving gear rotation drives the driving rack to move, the driving rack movement drives the driving rod to move, the driving rod movement drives the sealing cover to move, thereby realizing the movement of the sealing cover position by controlling the driving motor.

[0018] Optionally, the fixing mechanism includes:

[0019] A first fixing plate, wherein the first fixing plate is arranged on the frame;

[0020] a first fixing block and a second fixing block, wherein the first fixing block and the second fixing block are both horizontally slidably arranged on the frame;

[0021] Two groups of moving components, both groups of moving components are arranged on the frame and are respectively connected to the first fixed block and the second fixed block, the two groups of moving components are used to drive the first fixed block and the second fixed block to move, under the action of the moving components, the two ends of the first fixed block are respectively in conflict with the second fixed block and the first fixed plate, under the action of the moving components, the two ends of the second fixed block are respectively in conflict with the first fixed block and the first fixed plate, a triangular fixed space is formed between the first fixed block, the second fixed block and the first fixed plate, and the tank body is located between the first fixed block, the second fixed block and the first fixed plate.

[0022] By adopting the above technical solution, the first fixed block and the second fixed block are driven away from the first fixed plate by two sets of moving components, so that the tank body can be placed between the first fixed block, the second fixed block and the first fixed plate, and then the first fixed block and the second fixed block are moved close to the first fixed plate by two sets of moving components, and the first fixed block, the second fixed block and the first fixed plate cooperate to clamp the tank body, thereby completing the work of fixing the position of the tank body.

[0023] Optionally, the mobile component includes:

[0024] A load-bearing plate, wherein the load-bearing plate is arranged on the frame;

[0025] A moving spring, one end of which is arranged on the force-bearing plate, and the other end of which is connected to the first fixed block.

[0026] By adopting the above technical solution, a force plate is installed on the frame and a movable spring is fixedly installed on the force plate. The first fixed block and the second fixed block are pressed against the outer wall of the tank body under the action of the two movable springs. When the tank body needs to be taken or placed, the first fixed block and the second fixed block are moved to compress the two movable springs respectively. This is convenient and fast with high work efficiency.

[0027] Optionally, a conveyor belt is rotatably arranged on the frame, a plurality of fixing mechanisms are arranged, and the plurality of fixing mechanisms are evenly arranged along the length direction of the upper surface of the conveyor belt. A rotating assembly for driving the conveyor belt to rotate is arranged on the frame, and the rotating assembly includes:

[0028] Two rotating wheels, both of which are rotatably arranged on the frame, and the conveyor belt is sleeved on the two rotating wheels;

[0029] A rotating motor is arranged on a frame and an output shaft is connected to the rotating wheel.

[0030] By adopting the above technical solution, the rotating motor is started to drive the two wheels to rotate, and the rotation of the two wheels drives the conveyor belt to rotate. The rotation of the conveyor belt moves multiple cans fixed by the fixing mechanism to the bottom of the sealing cover for filling in sequence, so there is no need to wait for the previously filled can to be taken out before putting in the empty can for filling, which greatly reduces the time interval between the filling of two cans and improves work efficiency.

[0031] Optionally, the frame is provided with a positioning assembly for positioning the rotation position of the conveyor belt, and the positioning assembly includes:

[0032] An infrared transmitter, which is arranged on the frame, is located above the conveyor belt and transmits infrared signals to the surface of the conveyor belt;

[0033] Infrared signal receivers, wherein a plurality of infrared signal receivers are provided, and the plurality of infrared signal receivers are all provided on the conveyor belt and are located on one side of each set of fixing mechanisms, and when the infrared signal receivers are aligned with the infrared transmitters in the vertical direction, the position of the upper opening of the tank body in the vertical direction is aligned with the position of the sealing cover;

[0034] A controller is arranged on the frame and is electrically connected to the infrared signal receiver and the rotating motor.

[0035] By adopting the above technical solution, the infrared transmitter emits an infrared signal to the surface of the conveyor belt. When the conveyor belt moves and drives the can body to move under the sealing cover, the infrared signal receiver receives the infrared signal from the infrared transmitter and transmits an electrical signal to the controller. The controller then controls the rotating motor to stop, so that the can body can stop under the sealing cover for filling, thereby completing the positioning of the can body conveying position, eliminating the need for manual alignment operations, reducing work intensity and improving the accuracy and work efficiency during filling.

[0036] Optionally, a liquid level rod is vertically slidably provided on the sealing cover, a float is provided at the bottom end of the liquid level rod, the bottom end of the liquid level rod extends into the tank body under the action of gravity, and the top end of the liquid level rod is located above the sealing rod.

[0037] By adopting the above technical solution, a liquid level rod is installed on the sealing cover in a vertical sliding manner. The float located at the bottom of the liquid level rod moves along the filling liquid surface of the fire extinguishing agent in the tank body and drives the liquid level rod to move at the same time, so that the staff can grasp the filling situation of the fire extinguishing agent in the tank body according to the length of the liquid level rod extending above the sealing cover, which is convenient for stopping the filling work in time when the fire extinguishing agent fills the tank body, thereby reducing the probability of overflow of the fire extinguishing agent in the tank body.

[0038] Optionally, an electric valve is provided on the filling pipe, and an electric switch connected to the electric valve is provided on the frame. When the liquid level rod moves to the highest height under the action of the float, the top of the liquid level rod contacts the electric switch, and the electric valve is closed after the electric switch contacts the liquid level rod.

[0039] By adopting the above technical solution, an electric switch is installed on the frame. When the tank is filled with fire extinguishing agent, the top of the liquid level rod contacts the electric switch and causes the electric switch to close the electric valve, thereby achieving the goal that when the tank is filled with fire extinguishing agent, the filling pipe can stop filling work in time, without the need for manual observation of the operation at all times, reducing work intensity and improving work efficiency.

[0040] In summary, the present application includes at least one of the following beneficial technical effects:

[0041] 1. The driving component is started to drive the sealing cover to move, and the sealing cover moves to cover the upper opening of the tank body. At the same time, the bottom end of the filling pipe extends to the bottom of the tank body, and then the vacuum pump is started to draw the space inside the tank body into a negative pressure state. Finally, the fire extinguishing agent is introduced into the tank body through the filling pipe, thereby completing the work of filling the tank body with the fire extinguishing agent; by filling from the bottom to the top, the probability of bubbles generated by mutual impact and collision between the fire extinguishing agents due to gravity is reduced. At the same time, the step of drawing the negative pressure state in the tank body reduces the gas content in the tank body, reduces the probability of bubbles generated by the fire extinguishing agent in the tank body during filling, and improves the filling efficiency and the stability of the fire extinguishing agent;

[0042] 2. By installing a force plate on the frame and fixing a movable spring on the force plate, the first fixed block and the second fixed block are pressed against the outer wall of the tank body under the action of the two movable springs. When the tank body needs to be taken or placed, the first fixed block and the second fixed block are moved to compress the two movable springs respectively, which is convenient and fast with high work efficiency;

[0043] 3. By installing an electric switch on the frame, when the tank is filled with fire extinguishing agent, the top of the liquid level rod contacts the electric switch and causes the electric switch to close the electric valve, thereby realizing that when the tank is filled with fire extinguishing agent, the filling pipe can stop filling in time, without manual observation of the operation at all times, reducing work intensity and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a three-dimensional structural schematic diagram of the present application;

[0045] Figure 2 It is a schematic diagram of the structure of the fixing mechanism, the filling mechanism and the rotating assembly in the present application;

[0046] Figure 3 yes Figure 1 Enlarged schematic diagram of part A in the middle.

[0047] Figure numerals: 1. frame; 11. conveyor belt; 12. liquid level rod; 13. float; 14. electric valve; 15. electric switch; 2. fixing mechanism; 21. first fixed plate; 22. first fixed block; 23. second fixed block; 24. moving component; 25. force plate; 26. moving spring; 3. filling mechanism; 31. sealing cover; 32. driving component; 33. filling tube; 34. vacuum pump; 35. driving rod; 36. driving rack; 37. driving gear; 38. driving motor; 4. rotating component; 41. rotating wheel; 42. rotating motor; 5. positioning component; 51. infrared transmitter; 52. infrared signal receiver; 53. controller. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1 -Attached Figure 3This application is described in further detail.

[0049] The embodiment of the present application discloses a filling device for a water-based fire extinguisher.

[0050] Reference Figure 1 The filling device of the water-based fire extinguisher comprises a frame 1 and a fixing mechanism 2 arranged on the frame 1, and the tank of the fire extinguisher is fixed on the frame 1 through the fixing mechanism 2. A filling mechanism 3 is arranged on the frame 1, and the filling mechanism 3 is used to fill the fire extinguishing agent into the tank.

[0051] Reference Figure 1 and Figure 2 The filling mechanism 3 includes a sealing cover 31, a driving assembly 32, a filling pipe 33 and a vacuum pump 34. The sealing cover 31 is vertically slidably arranged on the frame 1 located above the tank body by the driving assembly 32. The driving assembly 32 is arranged on the frame 1 and is used to drive the sealing cover 31 to move. Under the action of the driving assembly 32, the sealing cover 31 vertically covers the tank body downward.

[0052] Reference Figure 1 and Figure 2 The driving assembly 32 includes a driving rod 35, a driving rack 36, a driving gear 37 and a driving motor 38. The driving rod 35 is vertically slidably mounted on the frame 1 located above the tube body. The driving rack 36 is fixedly mounted on the outer side wall of the driving rod 35. The driving gear 37 is rotatably mounted on the frame 1 and meshes with the driving rack 36. The driving motor 38 is fixedly mounted on the frame 1 and its output shaft is connected to the driving gear 37.

[0053] Reference Figure 1 and Figure 2 The driving motor 38 is started to drive the driving gear 37 to rotate, the driving gear 37 rotates to drive the driving rack 36 to move, the driving rack 36 moves to drive the driving rod 35 to move, and the driving rod 35 moves to drive the sealing cover 31 to move and cover the opening on the tank body.

[0054] Reference Figure 2 and Figure 3 The filling pipe 33 is fixedly mounted on the sealing cover 31. The filling pipe 33 is a hose, and the top of the filling pipe 33 is located above the sealing cover 31 and is connected to the material tank storing the fire extinguishing agent. The bottom of the filling pipe 33 is located below the sealing cover 31. When the sealing cover 31 covers the tank body, the bottom of the filling pipe 33 extends to the bottom of the tank body. The vacuum pump 34 is fixedly mounted on the upper surface of the sealing cover 31 and is connected to the bottom of the sealing cover 31. When the sealing cover 31 covers the tank body, the vacuum pump 34 evacuates the tank body.

[0055] Reference Figure 2 and Figure 3, the driving motor 38 starts to drive the sealing cover 31 to move, and the sealing cover 31 moves to cover the upper opening of the tank body, and at the same time, the bottom end of the filling pipe 33 extends to the bottom of the tank body. Then the vacuum pump 34 starts to evacuate the space inside the tank body to a negative pressure state, and finally the fire extinguishing agent is introduced into the tank body through the filling pipe 33, thereby completing the work of filling the tank body with the fire extinguishing agent. By filling from the bottom to the top, the probability of bubbles generated by the impact and collision between the fire extinguishing agents due to gravity is reduced. At the same time, by the step of evacuating the negative pressure state in the tank body, the gas content in the tank body is reduced, and the probability of bubbles generated by the fire extinguishing agent in the tank body during filling is reduced, thereby improving the filling efficiency and the stability of the fire extinguishing agent.

[0056] Reference Figure 1 and Figure 2 A conveyor belt 11 is rotatably mounted on the frame 1. Multiple sets of fixing mechanisms 2 are evenly arranged on the upper surface of the conveyor belt 11 along the length direction of the conveyor belt 11. Multiple cans are placed on the upper surface of the conveyor belt 11 through multiple sets of fixing mechanisms 2. These cans are sequentially passed under the sealing cover 31 under the action of the conveyor belt 11 for filling. A rotating assembly 4 is arranged on the frame 1, and the rotating assembly 4 is used to drive the conveyor belt 11 to rotate.

[0057] Reference Figure 1 and Figure 2 The rotating assembly 4 includes two rotating wheels 41 and a rotating motor 42. The two rotating wheels 41 are both rotatably mounted on the frame 1. The conveyor belt 11 is sleeved on the two rotating wheels 41. The rotating motor 42 is fixedly connected to the frame 1 and the output shaft is fixedly connected to the rotating wheels 41. The rotating motor 42 is started to drive the two rotating wheels 41 to rotate, and the rotation of the two rotating wheels 41 drives the conveyor belt 11 to rotate. The rotation of the conveyor belt 11 moves multiple can bodies fixed by the fixing mechanism 2 to the bottom of the sealing cover 31 in sequence for filling, so there is no need to wait for the previously filled can body to be taken out before putting in the empty can body for filling, which greatly reduces the time interval between the filling of two can bodies and improves the work efficiency.

[0058] Reference Figure 1 and Figure 2 The fixing mechanism 2 includes a first fixing plate 21, a first fixing block 22, a second fixing block 23 and two groups of moving components 24. The first fixing plate 21 is fixedly connected to the upper surface of the conveyor belt 11. The first fixing block 22 and the second fixing block 23 are both horizontally slidably installed on the conveyor belt 11 through the moving component 24. The moving component 24 includes a force plate 25 and a moving spring 26. The force plate 25 is fixedly connected to the upper surface of the conveyor belt 11. One end of the moving spring 26 is connected to the force plate 25, and the other end of the moving spring 26 is connected to the first fixing block 22.

[0059] Reference Figure 1 and Figure 2, the two ends of the first fixed block 22 are respectively in contact with the second fixed block 23 and the first fixed plate 21 under the action of the moving spring 26. The two ends of the second fixed block 23 are respectively in contact with the first fixed block 22 and the first fixed plate 21 under the action of the moving spring 26. A triangular fixed space is formed between the first fixed block 22, the second fixed block 23 and the first fixed plate 21. The tank body is located between the first fixed block 22, the second fixed block 23 and the first fixed plate 21. The first fixed block 22, the second fixed block 23 and the first fixed plate 21 cooperate to clamp the tank body.

[0060] Reference Figure 1 and Figure 2 A positioning assembly 5 for positioning the rotation position of the conveyor belt 11 is provided on the frame 1, and the positioning assembly 5 includes an infrared transmitter 51, an infrared signal receiver 52 and a controller 53. The infrared transmitter 51 is fixedly mounted on the frame 1 on one side of the sealing cover 31. The infrared transmitter 51 generates an infrared signal to the surface of the conveyor belt 11. A plurality of infrared signal receivers 52 are provided. The plurality of infrared signal receivers 52 are all fixedly mounted on the upper surface of the conveyor belt 11 and are located on one side of each group of fixing mechanisms 2. When the infrared signal receiver 52 is aligned with the infrared transmitter 51 in the vertical direction, the position of the upper opening of the tank body in the vertical direction is aligned with the position of the sealing cover 31. The controller 53 is fixedly mounted on the frame 1 and is electrically connected to the infrared signal receiver 52 and the rotating motor 42.

[0061] Reference Figure 1 and Figure 2 The infrared transmitter 51 transmits an infrared signal to the surface of the conveyor belt 11. When the conveyor belt 11 moves and drives the can body to move below the sealing cover 31, the infrared signal receiver 52 receives the infrared signal from the infrared transmitter 51 and transmits an electrical signal to the controller 53. The controller 53 then controls the rotating motor 42 to stop, so that the can body can stop below the sealing cover 31 for filling, thereby completing the positioning of the can body conveying position, without manual alignment operation, reducing the work intensity and improving the accuracy and work efficiency during filling.

[0062] Reference Figure 1 and Figure 3 , a liquid level rod 12 is vertically slidably mounted on the sealing cover 31. A float 13 is fixedly mounted on the bottom end of the liquid level rod 12. The float 13 floats on the surface of the fire extinguishing agent poured into the tube body. The top end of the rod extends above the sealing cover 31. An electric valve 14 is fixedly mounted on the filling pipe 33, and an electric switch 15 connected to the electric valve 14 is fixedly mounted on the frame 1. The electric switch 15 is located above the liquid level rod 12. When the liquid level rod 12 moves to the highest height under the action of the float 13, the top end of the liquid level rod 12 contacts the electric switch 15, and the electric valve 14 is closed after the electric switch 15 contacts the liquid level rod 12.

[0063] The working principle of the embodiment of the present application is as follows:

[0064] The driving motor 38 starts to drive the sealing cover 31 to move, and the sealing cover 31 moves to cover the upper opening of the tank body, and at the same time, the bottom end of the filling pipe 33 extends to the bottom of the tank body. Then the vacuum pump 34 starts to evacuate the space inside the tank body to a negative pressure state, and finally the fire extinguishing agent is introduced into the tank body through the filling pipe 33, thereby completing the work of filling the fire extinguishing agent into the tank body. By filling from the bottom to the top, the probability of bubbles generated by the impact and collision between the fire extinguishing agents due to gravity is reduced. At the same time, the gas content in the tank body is reduced by the step of evacuating the negative pressure state in the tank body, and the probability of bubbles generated by the fire extinguishing agent in the tank body during filling is reduced, thereby improving the filling efficiency and the stability of the fire extinguishing agent.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A filling device for a water-based fire extinguisher, characterized in that: The invention comprises a frame (1) and a fixing mechanism (2) arranged on the frame (1); a tank body of the fire extinguisher is fixedly placed on the frame (1) by the fixing mechanism (2); a liquid filling mechanism (3) is arranged on the frame (1); the liquid filling mechanism (3) is used to fill the fire extinguishing agent into the tank body; the liquid filling mechanism (3) comprises: A sealing cover (31), wherein the sealing cover (31) is vertically slidably disposed on the frame (1); A driving assembly (32), the driving assembly (32) being arranged on the frame (1) and used for driving the sealing cover (31) to move, the sealing cover (31) vertically downwardly covering the tank body under the action of the driving assembly (32); A liquid filling pipe (33), the liquid filling pipe (33) is arranged on the sealing cover (31), the liquid filling pipe (33) is a hose, the top end of the liquid filling pipe (33) is located above the sealing cover (31) and is connected to a material tank storing a fire extinguishing agent, the bottom end of the liquid filling pipe (33) is located below the sealing cover (31), and when the sealing cover (31) covers the tank body, the bottom of the liquid filling pipe (33) extends to the bottom of the tank body; A vacuum pump (34), wherein the vacuum pump (34) is arranged on the sealing cover (31) and is used to evacuate the space below the sealing cover (31).

2. The filling device for a water-based fire extinguisher according to claim 1, characterized in that: The drive assembly (32) comprises: A driving rod (35), wherein the driving rod (35) is vertically slidably arranged on the frame (1), and the sealing cover (31) is arranged at the bottom end of the driving rod (35); A driving rack (36), wherein the driving rack (36) is arranged on the outer side wall of the driving rod (35); A driving gear (37), the driving gear (37) being rotatably disposed on the frame (1) and meshing with the driving rack (36); A driving motor (38) is arranged on the frame (1) and an output shaft of the driving motor (38) is connected to a driving gear (37).

3. The filling device for a water-based fire extinguisher according to claim 1, characterized in that: The fixing mechanism (2) comprises: A first fixing plate (21), wherein the first fixing plate (21) is arranged on the frame (1); A first fixed block (22) and a second fixed block (23), wherein the first fixed block (22) and the second fixed block (23) are both horizontally slidably arranged on the frame (1); Two groups of moving components (24) are provided on the frame (1) and are respectively connected to the first fixed block (22) and the second fixed block (23). The two groups of moving components (24) are used to drive the first fixed block (22) and the second fixed block (23) to move. Under the action of the moving components (24), two ends of the first fixed block (22) respectively contact with the second fixed block (23) and the first fixed plate (21). Under the action of the moving components (24), two ends of the second fixed block (23) respectively contact with the first fixed block (22) and the first fixed plate (21). A triangular fixed space is formed between the first fixed block (22), the second fixed block (23) and the first fixed plate (21). The tank body is located between the first fixed block (22), the second fixed block (23) and the first fixed plate (21).

4. The filling device for a water-based fire extinguisher according to claim 3, characterized in that: The moving assembly (24) comprises: A force-bearing plate (25), wherein the force-bearing plate (25) is arranged on the frame (1); A movable spring (26), one end of which is arranged on the force-bearing plate (25), and the other end of which is connected to the first fixed block (22).

5. The filling device for a water-based fire extinguisher according to claim 4, characterized in that: A conveyor belt (11) is rotatably mounted on the frame (1), a plurality of fixing mechanisms (2) are provided, and the plurality of fixing mechanisms (2) are evenly distributed along the length direction of the upper surface of the conveyor belt (11), and a rotating assembly (4) for driving the conveyor belt (11) to rotate is provided on the frame (1), and the rotating assembly (4) comprises: Two rotating wheels (41), both of which are rotatably arranged on the frame (1), and the conveyor belt (11) is sleeved on the two rotating wheels (41); A rotating motor (42) is arranged on the frame (1) and the output shaft of the rotating motor (42) is connected to the rotating wheel (41).

6. A filling device for a water-based fire extinguisher according to claim 5, characterized in that: The frame (1) is provided with a positioning assembly (5) for positioning the rotation position of the conveyor belt (11), and the positioning assembly (5) comprises: An infrared transmitter (51), the infrared transmitter (51) being arranged on the frame (1), the infrared transmitter (51) being located above the conveyor belt (11) and transmitting infrared signals to the surface of the conveyor belt (11); Infrared signal receivers (52), a plurality of infrared signal receivers (52) are provided, and the plurality of infrared signal receivers (52) are all provided on the conveyor belt (11) and are located on one side of each set of fixing mechanisms (2), and when the infrared signal receivers (52) are aligned with the infrared transmitters (51) in the vertical direction, the position of the upper opening of the tank body in the vertical direction is aligned with the position of the sealing cover (31); A controller (53) is arranged on the frame (1) and is electrically connected to the infrared signal receiver (52) and the rotating motor (42).

7. The filling device for a water-based fire extinguisher according to claim 1, characterized in that: A liquid level rod (12) is vertically slidably arranged on the sealing cover (31), a floating ball (13) is arranged at the bottom end of the liquid level rod (12), the bottom end of the liquid level rod (12) extends into the tank body under the action of gravity, and the top end of the liquid level rod (12) is located above the sealing rod.

8. The filling device for a water-based fire extinguisher according to claim 7, characterized in that: The liquid filling pipe (33) is provided with an electric valve (14), and the frame (1) is provided with an electric switch (15) connected to the electric valve (14). When the liquid level rod (12) moves to the highest point under the action of the float (13), the top end of the liquid level rod (12) contacts the electric switch (15), and the electric valve (14) is closed after the electric switch (15) contacts the liquid level rod (12).

Images