Chemical liquid injection device

Abstract

The utility model discloses a chemical liquid injection device, which belongs to the technical field of liquid injection and comprises a base, the left side of the top of the base is fixedly connected with a gas filtering component, and the left side of a control system is provided with a conveying component fixedly connected with the top of the base. A cleaning assembly fixedly connected with the top of the base is arranged between the conveying assembly and the gas filtering assembly, and a flow adjusting assembly is fixedly connected to the middle of the top end of the cleaning assembly. The cleaning assembly and the gas filtering assembly are arranged to clean the inner wall of the liquid injection tank, so that the service life of equipment is prolonged, gas is exhausted in time, the pressure in the tank can be maintained within a safe range, stable operation of the equipment is ensured, and meanwhile pollution of harmful gas to the environment is reduced; opening and closing of the first fan blade and the second fan blade are achieved, so that the size of a liquid flowing channel is changed, accurate adjustment of the flow is achieved, and it is ensured that the reaction is carried out as expected.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid injection, in particular to a chemical liquid injection device. Background Art

[0002] Chemical liquid injection devices, as important equipment in many fields such as chemistry, pharmacy, and food processing, are designed and functioned to achieve accurate, efficient, and safe injection of chemical liquids. Chemical injection devices are complete sets of devices that inject chemical liquids into various systems according to the process flow. Through different process designs, various solid and liquid chemical solutions are accurately configured, and then accurately added with metering pumps to meet various design requirements. The existing technology has the following problems:

[0003] The existing chemical liquid injection device cannot accurately adjust the chemical liquid injection flow rate during the chemical liquid injection process, resulting in the inability to effectively control the reaction rate, thereby failing to ensure that the reaction proceeds as expected, reducing the reaction accuracy and product purity; the existing chemical liquid injection device, after long-term use, various sediments will adhere to the inner wall of the tank body. If not removed in time, the service life of the equipment and the purity of the product will be reduced. At the same time, a large amount of gas may be generated during the chemical reaction. If it is not discharged and filtered in time, the pressure in the tank will continue to increase, which may cause safety accidents such as equipment rupture and leakage, and will also pollute the environment. Utility Model Content

[0004] The utility model provides a chemical liquid injection device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A chemical liquid injection device comprises a base, wherein the four bottom corners of the base are fixedly connected with supporting legs, the top right side of the base is fixedly connected with a control system, the top left side of the base is fixedly connected with a gas filter assembly, the left side of the control system is provided with a conveying assembly fixedly connected to the top of the base, a cleaning assembly fixedly connected to the top of the base is provided between the conveying assembly and the gas filter assembly, and the top middle part of the cleaning assembly is fixedly connected with a flow regulating assembly.

[0007] A further improvement of the technical solution of the utility model is that: the conveying assembly includes a conveying cylinder, the bottom of the conveying cylinder is fixedly connected to the top of the base, the top of the conveying cylinder is threadedly connected to a conveying cover, the bottom of the conveying cover is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a piston slidably connected to the inner wall of the conveying cylinder, the front outer wall of the conveying cylinder is provided with an observation window, the inner wall of the observation window is provided with a scale, and the left side wall of the conveying cylinder is fixedly connected to a liquid guide tube connected to its interior.

[0008] A further improvement of the technical solution of the utility model is that the cleaning component includes a liquid filling tank, the bottom outer wall of the liquid filling tank is fixedly connected to a fixing frame fixedly connected to the top of the base, the bottom of the liquid filling tank is fixedly connected to a motor, the output end of the motor passes through the inner bottom wall of the liquid filling tank and is fixedly connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a cleaning brush that fits the inner wall of the liquid filling tank, the bottom of the right side wall of the liquid filling tank is fixedly connected to a drainage pipe connected to the interior thereof, the outer wall of the drainage pipe is provided with an electromagnetic valve 1, the top of the liquid filling tank is fixedly connected to a pressure gauge, and the top of the liquid filling tank is fixedly connected to an air guide pipe connected to the interior thereof.

[0009] A further improvement of the technical solution of the utility model is that the gas filter assembly includes a filter box, the bottom of the filter box is fixedly connected to the base, the top of the filter box is fixedly connected to the end of the air guide pipe away from the liquid injection tank, a coarse filter layer is arranged on the upper part of the interior of the filter box, an activated carbon filter layer is arranged on the lower part of the interior of the filter box, the bottom of the left side wall of the filter box is fixedly connected to an exhaust pipe connected to the interior thereof, and the outer wall of the exhaust pipe is provided with a second solenoid valve.

[0010] A further improvement of the technical solution of the utility model is that: the flow regulating component includes a flow tube, the bottom of the flow tube is fixedly connected to the top of the liquid injection tank and is connected to the inside thereof, the front outer wall of the flow tube is fixedly connected to a fixed frame, the top of the left side wall of the flow tube is fixedly connected to an end of the liquid guide tube away from the conveying cylinder, the right inner wall of the fixed frame is fixedly connected to cylinder 2, the output end of cylinder 2 is fixedly connected to a concave slider, the upper and lower sides of the concave slider are fixedly connected to convex strips, the convex strips are slidably connected to grooves provided on the upper and lower inner walls of the fixed frame, and the front side wall of the concave slider is provided with two upper and lower symmetrical concave sliding grooves.

[0011] A further improvement of the technical solution of the utility model is that: a cylindrical slider 1 is slidably connected to the inner wall of the concave slide groove at the upper end, a hollow column block is fixedly connected to the rear side of the cylindrical slider 1, the number of the hollow column blocks is four and the outer wall is fixedly connected to a first fan sheet, and a cylindrical slider 2 is slidably connected to the inner wall of the concave slide groove at the lower end, a rotating shaft is fixedly connected to the rear side of the cylindrical slider 2, a plurality of fixing rings staggered with the positions of the hollow column blocks are fixedly connected to the outer wall of the fixing ring, a second fan sheet is fixedly connected to the outer wall of the rotating shaft, the outer wall of the rotating shaft is rotatably connected to the inner wall of the hollow column block, and the front and rear ends of the rotating shaft are rotatably connected to the flow tube.

[0012] A further improvement of the technical solution of the utility model is that the control system is electrically connected to the cylinder, the motor, the first solenoid valve, the pressure gauge, the second solenoid valve and the second cylinder respectively.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] 1. The utility model provides a chemical liquid injection device, which is provided with a cleaning component and a gas filter component. The motor drives the rotating rod to rotate, and the rotation of the rotating rod drives the cleaning brush fixedly connected thereto to rotate, so as to clean the inner wall of the injection tank, thereby removing these corrosive substances and reducing the damage to the tank body caused by corrosion, thereby extending the service life of the equipment. The gas enters the filter box of the gas filter component through the air guide pipe, first passes through the coarse filter layer to remove larger particle impurities, then passes through the activated carbon filter layer to adsorb harmful gases, and finally is discharged from the exhaust pipe. Timely discharge of gas can maintain the pressure in the tank within a safe range, ensure stable operation of the equipment, and at the same time reduce the pollution of the environment by harmful gases produced by the reaction, thereby protecting the ecological environment.

[0015] 2. The utility model provides a chemical liquid injection device, which is provided with a flow regulating component. The control system controls the air cylinder 2 to push the concave slider to move. The convex strip on the concave slider slides in the groove of the fixed frame. The two concave sliding grooves arranged on the front side thereof drive the cylindrical slider 1 and the cylindrical slider 2 to move. When the cylindrical slider 1 moves, the hollow column block and the first fan sheet on the rear side of the cylindrical slider 1 will also move accordingly. At the same time, when the cylindrical slider 2 moves, the rotating shaft on the rear side of the cylindrical slider 2 and the fixed ring fixedly connected to the rotating shaft and the second fan sheet rotate accordingly. The hollow column block is rotatably connected to the rotating shaft to realize the opening and closing of the first fan sheet and the second fan sheet, thereby changing the size of the channel for liquid circulation and realizing precise adjustment of the flow rate to ensure that the reaction proceeds as expected and improve the yield and purity of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the conveying component of the utility model;

[0018] Figure 3 This is a schematic diagram of the cleaning component and the gas filtering component structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the flow regulating component of the utility model;

[0020] Figure 5 It is a schematic diagram of the exploded structure of the flow regulating component of the utility model.

[0021] In the figure: 101, base; 102, support leg; 103, control system; 2, conveying assembly; 201, conveying cylinder; 202, conveying cover; 203, cylinder; 204, piston; 205, observation window; 206, liquid guide tube; 207, scale; 3, cleaning assembly; 300, liquid injection tank; 301, motor; 302, fixed frame; 303, rotating rod; 304, cleaning brush; 305, drain pipe; 306, solenoid valve 1; 307, barometer; 308, air guide tube; 4, gas Filter assembly; 401, filter box; 402, coarse filter layer; 403, activated carbon filter layer; 404, exhaust pipe; 405, solenoid valve 2; 5, flow regulating assembly; 501, flow tube; 502, fixed frame; 503, cylinder 2; 504, concave slider; 505, concave slide groove; 506, convex strip; 507, cylindrical slider 1; 508, first blade; 509, rotating shaft; 510, second blade; 511, hollow column block; 512, cylindrical slider 2; 513, fixing ring. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods:

[0023] like Figure 1 As shown, the utility model provides a chemical liquid injection device, including a base 101, the four bottom corners of the base 101 are fixedly connected with legs 102, the top right side of the base 101 is fixedly connected with a control system 103, the top left side of the base 101 is fixedly connected with a gas filter component 4, the left side of the control system 103 is provided with a conveying component 2 fixedly connected to the top of the base 101, a cleaning component 3 fixedly connected to the top of the base 101 is provided between the conveying component 2 and the gas filter component 4, and a flow regulating component 5 is fixedly connected to the middle of the top of the cleaning component 3.

[0024] First, the legs 102 at the four corners of the bottom of the base 101 firmly support the entire device, and the control system 103 on the top right side of the base 101 is electrically connected to each component of the device and is responsible for coordinating the operation of each component.

[0025] like Figure 2 As shown, the conveying assembly 2 includes a conveying cylinder 201, the bottom of which is fixedly connected to the top of the base 101, the top of the conveying cylinder 201 is threadedly connected to a conveying cover 202, the bottom of the conveying cover 202 is fixedly connected to a cylinder 203, the output end of the cylinder 203 is fixedly connected to a piston 204 that is slidably connected to the inner wall of the conveying cylinder 201, the front outer wall of the conveying cylinder 201 is provided with an observation window 205, the inner wall of the observation window 205 is provided with a scale 207, and the left side wall of the conveying cylinder 201 is fixedly connected to a liquid guide tube 206 that is connected to the interior thereof.

[0026] The delivery cylinder 201 in the delivery component 2 is tightly connected to the base 101 through its bottom. When in use, first unscrew the delivery cover 202, pour the chemical liquid to be injected into the delivery cylinder 201, and then tighten the delivery cover 202. The cylinder 203 is started through the control system 103, and its output end pushes the piston 204. The injection amount can be accurately understood through the observation window 205 and the scale 207. At the same time, the liquid guide tube 206 transports the liquid to the next link.

[0027] like Figure 3 As shown, the cleaning component 3 includes a liquid filling tank 300, the bottom outer wall of the liquid filling tank 300 is fixedly connected to a fixing frame 302 fixedly connected to the top of the base 101, the bottom of the liquid filling tank 300 is fixedly connected to a motor 301, the output end of the motor 301 passes through the inner bottom wall of the liquid filling tank 300 and is fixedly connected to a rotating rod 303, the outer wall of the rotating rod 303 is fixedly connected to a cleaning brush 304 that fits the inner wall of the liquid filling tank 300, the bottom of the right side wall of the liquid filling tank 300 is fixedly connected to a drain pipe 305 connected to the interior thereof, the outer wall of the drain pipe 305 is provided with a solenoid valve 306, the top of the liquid filling tank 300 is fixedly connected to a pressure gauge 307, and the top of the liquid filling tank 300 is fixedly connected to an air guide pipe 308 connected to the interior thereof.

[0028] When it is necessary to clean the inner wall of the liquid injection tank 300, the motor 301 is started through the control system 103, driving the rotating rod 303 to rotate. The rotation of the rotating rod 303 drives the cleaning brush 304 fixedly connected thereto to rotate, so as to clean the inner wall of the liquid injection tank 300. When the reaction is completed and it is necessary to drain the liquid, the solenoid valve 1 306 is opened through the control system 103, and the liquid is discharged from the drain pipe 305. The pressure gauge 307 monitors the air pressure in the tank in real time. When the air pressure inside the liquid injection tank 300 reaches a predetermined value, a signal is transmitted to the control system 103, and the control system 103 controls the solenoid valve 2 405 to guide the gas out of the air guide pipe 308. Regular cleaning can remove these corrosive substances and reduce the damage to the tank body caused by corrosion, thereby extending the service life of the equipment.

[0029] like Figure 3 As shown, the gas filter assembly 4 includes a filter box 401, the bottom of the filter box 401 is fixedly connected to the base 101, the top of the filter box 401 is fixedly connected to the end of the air guide tube 308 away from the liquid injection tank 300, a coarse filter layer 402 is arranged on the upper part of the interior of the filter box 401, an activated carbon filter layer 403 is arranged on the lower part of the interior of the filter box 401, the bottom of the left side wall of the filter box 401 is fixedly connected to an exhaust pipe 404 connected to the interior thereof, and the outer wall of the exhaust pipe 404 is provided with a solenoid valve 2 405.

[0030] The gas enters the filter box 401 of the gas filter assembly 4 through the air guide pipe 308, first passes through the coarse filter layer 402 to remove larger particle impurities, then passes through the activated carbon filter layer 403 to adsorb harmful gases, and finally is discharged from the exhaust pipe 404. The solenoid valve 405 controls the on and off of the exhaust. Timely exhaust of the gas can maintain the pressure in the tank within a safe range, ensuring stable operation of the equipment. At the same time, it can reduce the pollution of the environment by harmful gases produced by the reaction and protect the ecological environment.

[0031] like Figure 4 , Figure 5 As shown, the flow regulating component 5 includes a flow tube 501, the bottom of which is fixedly connected to the top of the liquid injection tank 300 and communicated with the interior thereof, the front outer wall of the flow tube 501 is fixedly connected to a fixed frame 502, the top of the left side wall of the flow tube 501 is fixedly connected to the end of the liquid guide tube 206 away from the conveying cylinder 201, the right inner wall of the fixed frame 502 is fixedly connected to a cylinder 2 503, the output end of the cylinder 2 503 is fixedly connected to a concave slider 504, the upper and lower sides of the concave slider 504 are fixedly connected to convex strips 506, the convex strips 506 are slidably connected to the grooves provided on the upper and lower inner walls of the fixed frame 502, and the front side wall of the concave slider 504 is provided with two upper and lower symmetrical concave slide grooves 505.

[0032] like Figure 4 , Figure 5 As shown, the inner wall of the upper end concave groove 505 is slidably connected with a cylindrical slider 1 507, the rear side of the cylindrical slider 1 507 is fixedly connected with a hollow column block 511, the number of hollow column blocks 511 is four and the outer wall is fixedly connected with a first fan piece 508, the inner wall of the lower end concave groove 505 is slidably connected with a cylindrical slider 2 512, the rear side of the cylindrical slider 2 512 is fixedly connected with a rotating shaft 509, the outer wall of the rotating shaft 509 is fixedly connected with a plurality of fixing rings 513 whose positions are staggered with the hollow column block 511, the outer wall of the fixing ring 513 is fixedly connected with a second fan piece 510, the outer wall of the rotating shaft 509 is rotatably connected to the inner wall of the hollow column block 511, and the front and rear ends of the rotating shaft 509 are rotatably connected to the flow tube 501.

[0033] When it is necessary to change the size of the channel for liquid circulation in order to adjust the reaction speed, the flow regulating component 5 starts to work, and the flow tube 501 of the flow regulating component 5 receives the chemical liquid from the liquid guide tube 206 in the conveying component 2, and controls the cylinder 2 503 through the control system 103 to push the concave slider 504 to move. The convex strip 506 on the concave slider 504 slides in the groove of the fixed frame 502 to ensure smooth movement. When the concave slider 504 moves, the two concave grooves 505 on the front side thereof drive the cylindrical slider 1 507 and the cylindrical slider 2 512 to move. When slider 1 507 moves, the hollow column block 511 and the first fan blade 508 on the rear side of cylindrical slider 1 507 will also move accordingly. At the same time, when cylindrical slider 2 512 moves, the rotating shaft 509 and the fixed ring 513 and the second fan blade 510 on the rear side of cylindrical slider 2 512 will rotate accordingly. The hollow column block 511 is rotatably connected to the rotating shaft 509 to realize the opening and closing of the first fan blade 508 and the second fan blade 510, thereby changing the size of the channel for liquid circulation and realizing precise adjustment of the flow rate to ensure that the reaction proceeds as expected and improve the yield and purity of the product.

[0034] like Figure 1-5 As shown, the control system 103 is electrically connected to the cylinder 203, the motor 301, the solenoid valve 1 306, the pressure gauge 307, the solenoid valve 2 405 and the cylinder 2 503 respectively.

[0035] During the whole process, the control system 103 accurately controls the cylinder 203, the motor 301, the solenoid valve 1 306, the pressure gauge 307, the solenoid valve 2 405 and the cylinder 2 503 to ensure that the injection operation of the chemical liquid is accurate, efficient and safe.

[0036] It should be noted that the control system 103, the solenoid valve 1 306, the solenoid valve 2 405, and the pressure gauge 307 are all prior arts and will not be described in detail herein.

[0037] The working principle of the chemical liquid injection device will be described in detail below.

[0038] like Figure 1-5 As shown, when in use, first unscrew the delivery cap 202, pour the chemical liquid to be injected into the delivery cylinder 201, and then tighten the delivery cap 202, start the cylinder 203 through the control system 103, and its output end pushes the piston 204. The injection amount can be accurately understood through the observation window 205 and the scale 207, and at the same time, the liquid guide tube 206 transports the liquid to the next link.

[0039] The liquid transported through the liquid guide tube 206 reaches the flow regulating component 5. When the size of the channel through which the liquid flows needs to be changed in order to adjust the reaction speed, the flow regulating component 5 starts to work. The flow tube 501 of the flow regulating component 5 receives the chemical liquid from the liquid guide tube 206 in the transport component 2. The control system 103 controls the cylinder 2 503 to push the concave slider 504 to move. The convex strip 506 on the concave slider 504 slides in the groove of the fixed frame 502 to ensure smooth movement. When the concave slider 504 moves, the two concave grooves 505 on the front side thereof drive the cylindrical slider 1 507 and the cylindrical slider 2 508 to move. When slider 2 512 moves and cylindrical slider 1 507 moves, the hollow column block 511 and the first fan blade 508 on the rear side of cylindrical slider 1 507 will also move accordingly. At the same time, when cylindrical slider 2 512 moves, the rotating shaft 509 on the rear side of cylindrical slider 2 512 and the fixed ring 513 and the second fan blade 510 fixedly connected to the rotating shaft 509 will rotate accordingly, and the hollow column block 511 is rotatably connected to the rotating shaft 509 to realize the opening and closing of the first fan blade 508 and the second fan blade 510, thereby changing the size of the channel for liquid circulation and realizing precise adjustment of the flow rate to ensure that the reaction proceeds as expected and improve the yield and purity of the product.

[0040] When it is necessary to clean the inner wall of the liquid injection tank 300, the motor 301 is started through the control system 103, driving the rotating rod 303 to rotate. The rotation of the rotating rod 303 drives the cleaning brush 304 fixedly connected thereto to rotate, so as to clean the inner wall of the liquid injection tank 300. When the reaction is completed and it is necessary to drain the liquid, the solenoid valve 1 306 is opened through the control system 103, and the liquid is discharged from the drain pipe 305. The pressure gauge 307 monitors the air pressure in the tank in real time. When the air pressure inside the liquid injection tank 300 reaches a predetermined value, a signal is transmitted to the control system 103, and the control system 103 controls the solenoid valve 2 405 to guide the gas out of the air guide pipe 308. Regular cleaning can remove these corrosive substances and reduce the damage to the tank body caused by corrosion, thereby extending the service life of the equipment.

[0041] The gas enters the filter box 401 of the gas filter assembly 4 through the air guide pipe 308, first passes through the coarse filter layer 402 to remove larger particle impurities, then passes through the activated carbon filter layer 403 to adsorb harmful gases, and finally is discharged from the exhaust pipe 404. The solenoid valve 405 controls the on and off of the exhaust. Timely exhaust of the gas can maintain the pressure in the tank within a safe range, ensuring stable operation of the equipment. At the same time, it can reduce the pollution of the environment by harmful gases produced by the reaction and protect the ecological environment.

[0042] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A chemical liquid injection device, comprising a base (101), characterized in that: The four corners of the bottom of the base (101) are fixedly connected to supporting legs (102); the right side of the top of the base (101) is fixedly connected to a control system (103); the left side of the top of the base (101) is fixedly connected to a gas filter assembly (4); the left side of the control system (103) is provided with a conveying assembly (2) fixedly connected to the top of the base (101); a cleaning assembly (3) fixedly connected to the top of the base (101) is provided between the conveying assembly (2) and the gas filter assembly (4); and a flow regulating assembly (5) is fixedly connected to the middle of the top of the cleaning assembly (3).

2. A chemical liquid injection device according to claim 1, characterized in that: The conveying assembly (2) comprises a conveying cylinder (201), the bottom of the conveying cylinder (201) being fixedly connected to the top of the base (101), the top of the conveying cylinder (201) being threadedly connected to a conveying cover (202), the bottom of the conveying cover (202) being fixedly connected to a cylinder (203), the output end of the cylinder (203) being fixedly connected to a piston (204) slidably connected to the inner wall of the conveying cylinder (201), the front outer wall of the conveying cylinder (201) being provided with an observation window (205), the inner wall of the observation window (205) being provided with a scale (207), and the left side wall of the conveying cylinder (201) being fixedly connected to a liquid guide tube (206) communicating with the interior thereof.

3. A chemical liquid injection device according to claim 2, characterized in that: The cleaning assembly (3) comprises a liquid injection tank (300), the bottom outer wall of the liquid injection tank (300) is fixedly connected to a fixing frame (302) fixedly connected to the top of the base (101), the bottom of the liquid injection tank (300) is fixedly connected to a motor (301), the output end of the motor (301) penetrates the inner bottom wall of the liquid injection tank (300) and is fixedly connected to a rotating rod (303), the outer wall of the rotating rod (303) is fixedly connected to a cleaning brush (304) that fits the inner wall of the liquid injection tank (300), the bottom of the right side wall of the liquid injection tank (300) is fixedly connected to a liquid discharge pipe (305) that is in communication with the interior thereof, the outer wall of the liquid discharge pipe (305) is provided with a solenoid valve 1 (306), the top of the liquid injection tank (300) is fixedly connected to a pressure gauge (307), and the top of the liquid injection tank (300) is fixedly connected to an air guide pipe (308) that is in communication with the interior thereof.

4. A chemical liquid injection device according to claim 3, characterized in that: The gas filter assembly (4) comprises a filter box (401), the bottom of the filter box (401) being fixedly connected to the base (101), the top of the filter box (401) being fixedly connected to an end of the air guide pipe (308) away from the liquid injection tank (300), a coarse filter layer (402) being arranged at the upper part of the interior of the filter box (401), an activated carbon filter layer (403) being arranged at the lower part of the interior of the filter box (401), an exhaust pipe (404) being fixedly connected to the bottom of the left side wall of the filter box (401) and communicating with the interior thereof, and a second solenoid valve (405) being arranged on the outer wall of the exhaust pipe (404).

5. A chemical liquid injection device according to claim 4, characterized in that: The flow regulating assembly (5) comprises a flow tube (501), the bottom of which is fixedly connected to the top of the liquid injection tank (300) and communicated with the interior thereof, the front outer wall of the flow tube (501) is fixedly connected to a fixing frame (502), the top of the left side wall of the flow tube (501) is fixedly connected to an end of the liquid guide tube (206) away from the conveying cylinder (201), the right inner wall of the fixing frame (502) is fixedly connected to a second cylinder (503), the output end of the second cylinder (503) is fixedly connected to a concave slider (504), the upper and lower sides of the concave slider (504) are fixedly connected to convex strips (506), the convex strips (506) are slidably connected to grooves provided on the upper and lower inner walls of the fixing frame (502), and the front side wall of the concave slider (504) is provided with two concave slide grooves (505) symmetrical in upper and lower directions.

6. A chemical liquid injection device according to claim 5, characterized in that: The inner wall of the concave slide groove (505) at the upper end is slidably connected to a cylindrical slider 1 (507), and the rear side of the cylindrical slider 1 (507) is fixedly connected to a hollow column block (511). The number of the hollow column blocks (511) is four and the outer wall is fixedly connected to a first fan blade (508). The inner wall of the concave slide groove (505) at the lower end is slidably connected to a cylindrical slider 2 (512), and the rear side of the cylindrical slider 2 (512) is fixedly connected to a rotating shaft (509). The outer wall of the rotating shaft (509) is fixedly connected to a plurality of fixing rings (513) whose positions are staggered with the hollow column block (511), and the outer wall of the fixing ring (513) is fixedly connected to a second fan blade (510). The outer wall of the rotating shaft (509) is rotatably connected to the inner wall of the hollow column block (511), and the front and rear ends of the rotating shaft (509) are rotatably connected to the flow tube (501).

7. A chemical liquid injection device according to claim 5, characterized in that: The control system (103) is electrically connected to the cylinder (203), the motor (301), the solenoid valve 1 (306), the pressure gauge (307), the solenoid valve 2 (405) and the cylinder 2 (503) respectively.

Images