Mixing and stirring device for fireproof coating

Abstract

The utility model discloses a mixing and stirring device for fireproof coating, which comprises a mixing tank, a tank cover is arranged at the top end of the mixing tank, a connecting device is arranged at the top end of the tank cover, the connecting device comprises a material conveying pipe, a guide block, an inserting groove, an inserting frame, a guide groove, a connecting pipe, a sliding sleeve, a sliding block, a push spring, a sliding groove and a sealing gasket, and the inserting frame is clamped with the inserting groove. The guide blocks are arranged on the two sides of the inserting frame, the guide grooves are formed in the sliding sleeves, the connecting pipes are sleeved with the sliding sleeves, the sliding blocks are arranged in the sliding sleeves, the sliding grooves are formed in the outer sides of the connecting pipes, the push springs are arranged in the sliding grooves, the sealing gaskets are arranged on the inner sides of the connecting pipes, and the mixing device is arranged on the outer side of the mixing tank. The mixing device comprises a motor, a small gear, a large gear, a mixing frame, a movable frame and a fixed frame, the mixing frame is installed in the mixing tank, the large gear is arranged on the outer side of the mixing tank in a sleeving mode, the motor is connected with the small gear, a lubricating mechanism is arranged on the inner side of the small gear, and the use flexibility, mixing efficiency, connection reliability and lubricating maintenance of equipment are fully guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of fire retardant coating production, and more specifically, to a mixing and stirring device for fire retardant coating. Background Art

[0002] In modern construction and industrial fields, fire retardant coatings are used more and more widely. They can form a protective layer under high temperature conditions and effectively prevent the spread of fire. In the preparation process of fire retardant coatings, the mixing and stirring device is one of the key equipment. It is responsible for evenly mixing various raw materials to ensure the quality and performance of the coating. However, the existing mixing and stirring devices for fire retardant coatings have some problems in structural design and operation, which affect their use effect and efficiency. First of all, the existing device structure is relatively simple, and the angle of the mixing tank is often unable to be adjusted. This fixed structure limits the flexibility of the equipment, making it difficult to achieve the best mixing effect under different coating formulations or production requirements. The angle adjustment of the mixing tank is crucial to mixing uniformity and efficiency, because different coating components may be stratified under the action of gravity, affecting the quality of the final product. In addition, the existing device usually achieves mixing through a mixing rod and a mixing rack. This traditional mixing method may lead to reduced mixing efficiency and increase maintenance costs. In addition, this mechanical mixing method may not achieve a completely uniform mixing effect, especially when dealing with coatings with high viscosity or high solid content.

[0003] In addition, the connection method for the feed pipe in the existing device is usually cumbersome and usually cannot achieve sealing. The feed pipe is a key component connecting the raw material supply and the mixing tank. The reliability and sealing of its connection are crucial to the smooth progress of the production process. However, the existing connection method may require complicated operating steps and is prone to leakage, which not only affects production efficiency, but may also cause waste of raw materials and environmental pollution.

[0004] Finally, existing devices usually use gear sets for driving. The gears will wear out after long-term use and usually need to be lubricated manually. The wear of the gear sets will not only affect the operating stability of the equipment, but may also cause a decrease in mixing efficiency. Manual lubrication not only increases the burden on operators, but may also lead to insufficient or excessive lubrication, affecting the performance and life of the equipment. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the utility model provides a mixing and stirring device for fire retardant coatings to solve the technical problems mentioned in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mixing and stirring device for fire retardant coating, comprising a mixing tank, a tank cover is arranged at the top of the mixing tank, a connecting device is arranged at the top of the tank cover, the connecting device comprises a feeding pipe, a guide block, a plug-in groove, a plug-in frame, a guide groove, a connecting pipe, a sliding sleeve, a slider, a push spring, a sliding groove and a sealing gasket, the connecting pipe is installed at the top of the tank cover, the feeding pipe is detachably installed in the connecting pipe, the plug-in groove is arranged on the outside of the feeding pipe, one end of the plug-in frame is engaged with the plug-in groove, the guide blocks are arranged on both sides of the plug-in frame, the guide groove is arranged at the corresponding position of the sliding sleeve, and the guide blocks are slidably installed in the guide groove, the sliding sleeve is movably sleeved on the outside of the connecting pipe, and the slider is arranged on the sliding sleeve The inner side of the sleeve, the slide groove is opened on the outer side of the connecting pipe, and the slider is slidably installed in the slide groove, the push spring is movably arranged in the slide groove, and one end of the push spring is connected to the slider, the sealing gasket is arranged on the inner side of the connecting pipe, and a mixing device is arranged on the outer side of the mixing tank, the mixing device includes a motor, a pinion, a large gear, a mixing frame, a movable frame and a fixed frame, the movable frame is movably installed on the fixed frame, the mixing frame is detachably installed in the mixing tank, the bottom end of the mixing tank is movably connected to the movable frame, the large gear is sleeved on the outer side of the mixing tank, the motor is installed on the outer side of the fixed frame, the output end of the motor passes through one side of the movable frame to be connected with the pinion, and the pinion is meshed with the large gear, and a lubrication mechanism is arranged on the inner side of the pinion.

[0009] The utility model is further configured that a hand wheel is provided at one side of the mixing tank, and the hand wheel passes through the fixed frame and is connected with one side of the movable frame. The setting of the hand wheel facilitates the adjustment of the angle of the mixing tank.

[0010] The utility model is further configured that a turntable is provided on one side of the hand wheel, a limit frame is provided on one side of the turntable, and one end of the limit frame is engaged with the turntable.

[0011] The utility model is further configured such that a first spring is provided on the outer side of the limit frame, a limit plate is provided on one side of the fixed frame, the bottom end of the first spring is connected to the limit plate, and the configuration of the first spring and the limit plate facilitates the resetting of the limit frame and makes the limit more stable.

[0012] The utility model is further configured such that a clamping groove is provided on the inner side of the connecting pipe, a rubber ring is provided on the outer side of the feeding pipe, and the rubber ring is clamped in the corresponding clamping groove. The configuration of the rubber ring and the clamping groove further enhances the sealing performance of the connection.

[0013] The utility model is further configured such that the lubrication mechanism includes an oil storage bin, an oil outlet groove, a fixed plate and a sealing plate; the oil storage bin is opened inside the pinion; the oil outlet groove is opened on the side wall of the pinion; the fixed plate is fixedly installed in the oil storage bin; the sealing plate is movably installed on one side of the fixed plate; the setting of the lubrication mechanism realizes automatic lubrication.

[0014] The utility model is further configured that a top block is provided on one side of the blocking plate, and the top block extends outward from the pinion gear, and the configuration of the top block realizes fixed-point lubrication.

[0015] The utility model is further configured that a second spring is provided on one side of the blocking plate, and the other end of the second spring is connected to the fixing plate. The provision of the second spring facilitates the resetting of the blocking plate and ensures the stable use of the equipment.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a mixing and stirring device for fire retardant coating, which has the following beneficial effects:

[0018] 1. The mixing device adopts the design of motor, pinion, gear, mixing rack and movable rack to realize the rotation of the mixing tank and the adjustment of the mixing angle. This design can not only provide efficient mixing effect, but also adjust the angle of the mixing tank as needed to meet the mixing needs of different coating formulas. The motor drives the rotation of the pinion and gear, and the mixing tank and mixing rack rotate accordingly to achieve full mixing of the raw materials. In addition, the design of the turntable, limit rack and hand wheel can easily adjust the angle of the mixing tank to further improve the mixing effect. The design of the mixing device improves the flexibility and mixing efficiency of the equipment and ensures the uniformity and quality of the fire retardant coating.

[0019] 2. The connecting device adopts the design of conveying pipe, guide block, plug-in frame and sealing gasket, etc., which realizes the rapid connection and reliable sealing of the conveying pipe. This design realizes the rapid and firm connection between the conveying pipe and the mixing tank through the special cooperation of the sliding sleeve, slider, push spring and guide block. The setting of the sealing gasket and rubber ring further enhances the sealing performance of the connection and prevents the leakage of raw materials. The design of the connecting device simplifies the operation steps, improves the connection efficiency, and ensures the reliability and sealing of the connection.

[0020] 3. The lubrication mechanism adopts the design of oil storage tank, oil outlet groove, fixed plate and sealing plate to realize automatic lubrication of the gear set. This design drives the top block to press down through the rotation of the large gear, thereby opening the oil outlet groove and allowing the lubricating oil to automatically flow to the meshing small gear and large gear to achieve the lubrication purpose. When the large gear is no longer in contact with the top block, the spring drives the sealing plate to reset and close the oil outlet groove. The design of the lubrication mechanism does not require manual intervention and can continuously and evenly provide lubrication for the gear set, reducing wear, extending the service life of the gears, and improving the operating stability and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a mixing and stirring device for fire retardant coatings in the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the utility model with the can cover portion removed;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the limiting frame part of the utility model;

[0024] Figure 4 It is a schematic cross-sectional structure diagram of the lubrication mechanism part of the utility model;

[0025] Figure 5 It is a schematic cross-sectional structure diagram of the connecting device part in the utility model.

[0026] In the figure: 1. mixing tank; 2. tank cover; 3. feed pipe; 4. guide block; 5. plug-in slot; 6. plug-in frame; 7. guide slot; 8. connecting pipe; 9. sliding sleeve; 10. slider; 11. push spring; 12. slide slot; 13. sealing gasket; 14. motor; 15. small gear; 16. large gear; 17. mixing frame; 18. movable frame; 19. fixed frame; 20. hand wheel; 21. turntable; 22. limit frame; 23. first spring; 24. limit plate; 25. engaging slot; 26. rubber ring; 27. oil storage bin; 28. oil outlet slot; 29. ​​fixed plate; 30. sealing plate; 31. top block; 32. second spring. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0030] See also Figure 1-5A mixing device for fire retardant coating comprises a mixing tank 1, a tank cover 2 is arranged at the top of the mixing tank 1, a connecting device is arranged at the top of the tank cover 2, the connecting device comprises a feeding pipe 3, a guide block 4, a plug-in groove 5, a plug-in frame 6, a guide groove 7, a connecting pipe 8, a sliding sleeve 9, a slider 10, a push spring 11, a slide groove 12 and a sealing gasket 13, the connecting pipe 8 is installed at the top of the tank cover 2, the feeding pipe 3 is detachably installed in the connecting pipe 8, the plug-in groove 5 is arranged on the outside of the feeding pipe 3, one end of the plug-in frame 6 is engaged with the plug-in groove 5, the guide blocks 4 are arranged on both sides of the plug-in frame 6, the guide groove 7 is arranged at the corresponding position of the sliding sleeve 9, and the guide block 4 is slidably installed in the guide groove 7, the sliding sleeve 9 can be movably sleeved on the outside of the connecting pipe 8, the slider 10 is arranged on the inside of the sliding sleeve 9, the slide groove 12 is arranged on the outside of the connecting pipe 8, and the sliding The block 10 is slidably installed in the slide groove 12, the push spring 11 is movably arranged in the slide groove 12, and one end of the push spring 11 is connected to the slider 10, the sealing gasket 13 is arranged on the inner side of the connecting pipe 8, and a mixing device is arranged on the outer side of the mixing tank 1, the mixing device includes a motor 14, a small gear 15, a large gear 16, a mixing frame 17, a movable frame 18 and a fixed frame 19, the movable frame 18 is movably installed on the fixed frame 19, the mixing frame 17 is detachably installed in the mixing tank 1, the bottom end of the mixing tank 1 is movably connected to the movable frame 18, the large gear 16 is sleeved on the outer side of the mixing tank 1, the motor 14 is installed on the outer side of the fixed frame 19, the output end of the motor 14 passes through one side of the movable frame 18 to be connected with the small gear 15, and the small gear 15 is meshed with the large gear 16, and a lubrication mechanism is arranged on the inner side of the small gear 15.

[0031] A hand wheel 20 is provided on one side of the mixing tank 1 , and the hand wheel 20 passes through the fixed frame 19 and is connected to one side of the movable frame 18 .

[0032] A turntable 21 is disposed on one side of the hand wheel 20 , a limit frame 22 is disposed on one side of the turntable 21 , and one end of the limit frame 22 is engaged with the turntable 21 .

[0033] A first spring 23 is disposed on the outer side of the limiting frame 22 , a limiting plate 24 is disposed on one side of the fixing frame 19 , and the bottom end of the first spring 23 is connected to the limiting plate 24 .

[0034] A snap-fitting groove 25 is formed on the inner side of the connecting pipe 8 , and a rubber ring 26 is formed on the outer side of the feeding pipe 3 . The rubber ring 26 is snap-fitted in the corresponding snap-fitting groove 25 .

[0035] In this embodiment, when the device needs to be used, firstly, the two sliding sleeves 9 are pressed inwardly relative to each other, and the sliding sleeve 9 drives the slider 10 to slide in the sliding groove 12, and makes the slider 10 squeeze the push spring 11, and then the sliding sleeve 9 drives the guide groove 7 to move. Due to the special structural design of the guide groove 7 and the guide block 4, when the sliding sleeve 9 drives the guide groove 7 to move relatively inwardly, the guide block 4 slides in the guide groove 7, and the guide block 4 drives the plug-in frame 6 to move outwardly. When the sliding sleeve 9 cannot move further, the inner side of the plug-in frame 6 and the connecting pipe are connected. 8 is flush with the inner wall, and then the feed pipe 3 is inserted into the inner side of the connecting pipe 8. When one end of the feed pipe 3 contacts the sealing gasket 13, the sliding sleeve 9 is released, and the push spring 11 drives the slider 10 to reset in the sliding groove 12. The slider 10 drives the sliding sleeve 9 to reset, and then the sliding sleeve 9 drives the plug-in frame 6 to be inserted into the plug-in groove 5 through the cooperation of the guide groove 7 and the guide block 4. Due to the special structural design inside the plug-in groove 5, when one end of the plug-in frame 6 is fully inserted into the plug-in groove 5, the feed pipe 3 will be pressed down, so that the feed pipe 3 squeezes the sealing gasket 13, so that the connection The sealing performance is better, and the rubber ring 26 will be squeezed into the corresponding engaging groove 25, further improving the sealing performance of the connection. Then, the raw materials are transported to the mixing tank 1 through the feeding pipe 3 through the external conveying equipment, and then the motor 14 is turned on. The motor 14 will drive the small gear 15 connected to the output end to drive the large gear 16 to rotate, thereby driving the mixing tank 1 to rotate, and then the mixing tank 1 will drive the mixing frame 17 to rotate, thereby achieving the mixing of the raw materials. Then, the pedal connected to the bottom end of the limit frame 22 can be stepped down according to the situation, and the limit frame 2 2 will cooperate with the limiting plate 24 to compress the first spring 23, and at the same time, the top of the limiting frame 22 will no longer limit the turntable 21, and then the hand wheel 20 is turned, the hand wheel 20 will drive the turntable 21 and the movable frame 18 to rotate, so as to adjust the angle of the mixing tank 1. When the mixing tank 1 is rotated ninety degrees, the mixing effect will be greatly increased. After the adjustment is completed, the limiting frame 22 is released, and the first spring 23 will drive the limiting frame 22 to reset, so that the top of the limiting frame 22 is again engaged with the bottom of the turntable 21, thereby preventing the turntable 21 and the hand wheel 20 from rotating easily.

[0036] See also Figure 1 and Figure 4 As an implementation method of a mixing and stirring device for fire retardant coating for a lubricating mechanism: the lubricating mechanism includes an oil storage bin 27, an oil outlet groove 28, a fixed plate 29 and a blocking plate 30, the oil storage bin 27 is opened inside the pinion 15, the oil outlet groove 28 is opened on the side wall of the pinion 15, the fixed plate 29 is fixedly installed in the oil storage bin 27, and the blocking plate 30 is movably installed on one side of the fixed plate 29.

[0037] A top block 31 is provided on one side of the blocking plate 30 , and the top block 31 extends outward from the pinion 15 .

[0038] A second spring 32 is disposed on one side of the blocking plate 30 , and the other end of the second spring 32 is connected to the fixing plate 29 .

[0039] More specifically, when the pinion 15 drives the large gear 16 to rotate, the teeth of the large gear 16 will press the top plate downward, so that the top plate is pressed into a position that fits the outer wall of the pinion 15, and the top plate will drive the sealing plate 30 to move, and the sealing plate 30 will cooperate with the fixed plate 29 to compress the second spring 32. At the same time, the movement of the sealing plate 30 will expose the oil outlet groove 28 opened on the side wall of the pinion 15, so that the lubricating oil stored in the oil storage tank 27 flows out from the oil outlet groove 28, thereby realizing the meshing of the pinion 15 and the large gear 16. When the teeth of the large gear 16 no longer contact the top plate, the spring will drive the top plate and the sealing plate 30 to reset, thereby closing the oil outlet groove 28 again.

[0040] In summary, when the overall device is in use or running: when the device needs to be used, first press the two sliding sleeves 9 inwardly relative to each other, the sliding sleeve 9 drives the slider 10 to slide in the sliding groove 12, and makes the slider 10 squeeze the push spring 11, and then the sliding sleeve 9 drives the guide groove 7 to move. Due to the special structural design of the guide groove 7 and the guide block 4, when the sliding sleeve 9 drives the guide groove 7 to move relatively inwardly, the guide block 4 slides in the guide groove 7, and the guide block 4 drives the plug-in frame 6 to move outward. When the sliding sleeve 9 cannot continue to move, the plug-in frame 6 is flush with the inner wall of the connecting pipe 8, and then the feeding pipe 3 is inserted into the inner side of the connecting pipe 8. When one end of the feeding pipe 3 contacts the sealing gasket 13, the sliding sleeve 9 is released, and the push spring 11 drives the slider 10 to reset in the sliding groove 12, and the slider 10 drives the sliding sleeve 9 to reset. Then the sliding sleeve 9 drives the plug-in frame 6 to be inserted into the plug-in groove 5 through the cooperation of the guide groove 7 and the guide block 4. Due to the special structural design inside the plug-in groove 5, when one end of the plug-in frame 6 is fully inserted into the plug-in groove 5, the feeding pipe 3 will be pressed down, so that the feeding pipe 3 squeezes the sealing gasket 13, so that The sealing performance of the connection is better, and the rubber ring 26 will be squeezed into the corresponding engaging groove 25, further improving the sealing performance of the connection. Then, the raw materials are transported to the mixing tank 1 through the feeding pipe 3 by the external conveying equipment, and then the motor 14 is turned on. The motor 14 will drive the small gear 15 connected to the output end to drive the large gear 16 to rotate, thereby driving the mixing tank 1 to rotate, and then the mixing tank 1 will drive the mixing frame 17 to rotate, thereby achieving the mixing of the raw materials. Then, the pedal connected to the bottom end of the limit frame 22 can be stepped down according to the situation. The positioning frame 22 will cooperate with the limiting plate 24 to compress the first spring 23, and at the same time, the top of the limiting frame 22 will no longer limit the turntable 21, and then the handwheel 20 is turned, and the handwheel 20 will drive the turntable 21 and the movable frame 18 to rotate, so as to adjust the angle of the mixing tank 1. When the mixing tank 1 is rotated ninety degrees, the mixing effect will be greatly increased. After the adjustment is completed, the limiting frame 22 is released, and the first spring 23 will drive the limiting frame 22 to reset, so that the top of the limiting frame 22 is engaged with the bottom of the turntable 21 again, thereby preventing the turntable 21 and the handwheel 20 from rotating easily.

[0041] When the pinion 15 drives the large gear 16 to rotate, the teeth of the large gear 16 will press the top plate downward, so that the top plate is pressed into a position that fits the outer wall of the pinion 15, and the top plate will drive the sealing plate 30 to move, and the sealing plate 30 will cooperate with the fixed plate 29 to compress the second spring 32. At the same time, the movement of the sealing plate 30 will expose the oil outlet groove 28 opened on the side wall of the pinion 15, so that the lubricating oil stored in the oil storage tank 27 flows out from the oil outlet groove 28, thereby realizing the meshing of the pinion 15 and the large gear 16. When the teeth of the large gear 16 no longer contact the top plate, the spring will drive the top plate and the sealing plate 30 to reset, thereby closing the oil outlet groove 28 again.

[0042] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A mixing device for fire retardant coating, comprising a mixing tank (1), wherein the top of the mixing tank (1) is provided with a tank cover (2), wherein: The top of the tank cover (2) is provided with a connecting device, which comprises a feeding pipe (3), a guide block (4), a plug-in groove (5), a plug-in frame (6), a guide groove (7), a connecting pipe (8), a sliding sleeve (9), a slider (10), a push spring (11), a sliding groove (12) and a sealing gasket (13). The plug-in frame (6) is engaged with the plug-in groove (5), the guide block (4) is arranged on both sides of the plug-in frame (6), the guide groove (7) is opened in the sliding sleeve (9), the sliding sleeve (9) is sleeved outside the connecting pipe (8), the slider (10) is arranged in the sliding sleeve (9), and the sliding groove (12) is opened. The mixing tank (1) is provided on the outside of the connecting pipe (8), the push spring (11) is provided in the slide groove (12), the sealing gasket (13) is provided on the inside of the connecting pipe (8), a mixing device is provided on the outside of the mixing tank (1), the mixing device comprises a motor (14), a pinion (15), a large gear (16), a mixing frame (17), a movable frame (18) and a fixed frame (19), the mixing frame (17) is installed in the mixing tank (1), the large gear (16) is sleeved on the outside of the mixing tank (1), the motor (14) is connected to the pinion (15), and a lubrication mechanism is provided on the inside of the pinion (15).

2. A mixing device for fire retardant coating according to claim 1, characterized in that: A hand wheel (20) is provided on one side of the mixing tank (1), and the hand wheel (20) passes through the fixed frame (19) and is connected to one side of the movable frame (18).

3. A mixing device for fire retardant coating according to claim 2, characterized in that: A rotating disk (21) is provided on one side of the hand wheel (20), a limiting frame (22) is provided on one side of the rotating disk (21), and one end of the limiting frame (22) is engaged with the rotating disk (21).

4. A mixing device for fire retardant coating according to claim 3, characterized in that: A first spring (23) is provided on the outer side of the limiting frame (22), a limiting plate (24) is provided on one side of the fixing frame (19), and the bottom end of the first spring (23) is connected to the limiting plate (24).

5. The mixing device for fire retardant coating according to claim 1, characterized in that: The inner side of the connecting pipe (8) is provided with a snap-fitting groove (25), and the outer side of the conveying pipe (3) is provided with a rubber ring (26), and the rubber ring (26) is snap-fitted in the corresponding snap-fitting groove (25).

6. A mixing device for fire retardant coating according to any one of claims 1 to 5, characterized in that: The lubricating mechanism comprises an oil storage bin (27), an oil outlet groove (28), a fixed plate (29) and a blocking plate (30); the oil storage bin (27) is arranged inside the pinion (15); the oil outlet groove (28) is arranged on a side wall of the pinion (15); the fixed plate (29) is fixedly mounted inside the oil storage bin (27); and the blocking plate (30) is movably mounted on one side of the fixed plate (29).

7. A mixing device for fire retardant coating according to claim 6, characterized in that: A top block (31) is provided on one side of the blocking plate (30), and the top block (31) extends outward from the pinion gear (15).

8. A mixing device for fire retardant coating according to claim 7, characterized in that: A second spring (32) is provided on one side of the blocking plate (30), and the other end of the second spring (32) is connected to the fixing plate (29).

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