Acid-base concentration automatic detection equipment with pretreatment structure

Abstract

The utility model discloses acid-base concentration automatic detection equipment with a pretreatment structure, and particularly relates to the field of steel wire production, the acid-base concentration automatic detection equipment comprises a shell, a feed port, a discharge port, a mechanical surface rust removal assembly, a solution surface rust removal assembly and a cleaning assembly, the feed port is mounted on the side end face of the shell, and the discharge port is formed in one side, far away from the feed port, of the shell; a mechanical surface rust removal assembly is arranged in an inner cavity of the shell, a solution surface rust removal assembly is arranged on one side of the mechanical surface rust removal assembly, and a cleaning assembly is arranged on the side, away from the mechanical surface rust removal assembly, of the solution surface rust removal assembly. The mechanical surface rust removal assembly is used for firstly conducting surface treatment on the steel wire so that the solution surface rust removal assembly can further conduct rust removal on the steel wire, when the steel wire passes through the mechanical surface rust removal assembly, the detection mechanism is used for detecting the diameter and the material of the steel wire, and meanwhile liquid supplementing can be conducted on the solution box in time through the solution surface rust removal assembly; therefore, the solution concentration is prevented from being reduced when the steel wire is subjected to acid-base treatment.

Description

Technical Field

[0001] The utility model relates to the field of steel wire production, and more specifically, to an automatic acid and alkali concentration detection device with a pretreatment structure. Background Art

[0002] In some cases, steel wire is pickled during the manufacturing process to remove surface oxides, rust, and other impurities. For example, high carbon steel wire is usually immersed in an acidic solution during the pickling process to remove surface oxides and rust. Solution pickling is also used after processing. Alkali washing is another surface treatment method that can be used to remove grease and other organic matter, but it is not as common as pickling when treating steel wire. The purpose of acid and alkali treatment of steel wire during the production process is mainly to remove surface oxides, rust, and other impurities to improve its surface quality, enhance corrosion resistance and mechanical properties;

[0003] For example, application number CN201710093365.7 discloses an environmentally friendly treatment process and equipment for waste liquid generated by steel wire surface treatment, which can scientifically and effectively treat old working fluid, make full use of it, and achieve low-cost environmentally friendly emissions; the above-mentioned device mainly solves the problem of being able to scientifically and effectively treat old working fluid, make full use of it, and achieve low-cost environmentally friendly emissions. However, when in use, the purpose of acid and alkali treatment of steel wire in the production process is mainly to remove the surface oxide layer, rust and other impurities, and in the pickling process, the concentration of the acid solution will directly affect the treatment effect and the degree of corrosion of the steel wire. If the concentration is too low, it may not be able to effectively remove surface impurities, and if the concentration is too high, it may excessively corrode the steel wire and damage its structure. Therefore, pickling usually requires precise control of the concentration of the acid solution, and when in use, due to the acidity and alkalinity of the solution to the steel wire, there is a problem of decreased solution concentration, and thus the best effect of pickling the steel wire cannot be achieved;

[0004] Therefore, in order to solve the above problems, an automatic detection device for acid and alkali concentration with a pretreatment structure is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic acid-base concentration detection device with a pretreatment structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic acid-base concentration detection device with a pretreatment structure, comprising a shell, a feed port, a discharge port, a mechanical surface rust removal component, a solution surface rust removal component, and a cleaning component, wherein the feed port is mounted on a side end surface of the shell, and a discharge port is provided on a side of the shell away from the feed port, the inner cavity of the shell is provided with a mechanical surface rust removal component, and a solution surface rust removal component is provided on one side of the mechanical surface rust removal component, and a cleaning component is provided on a side of the solution surface rust removal component away from the mechanical surface rust removal component;

[0007] The mechanical surface rust removal assembly includes a rust removal mechanism and a detection mechanism, both of which are installed in a protective cover, and the rust removal mechanism is installed on one side of the detection mechanism, the detection mechanism includes a diameter detection assembly and a material detector, the diameter detection assembly includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are each provided with two groups, and the first connecting rod and the second connecting rod are cross-arranged in a "well" shape, and the contact surface between the second connecting rod and the first connecting rod is provided with a sliding sleeve, the outer diameter surface of the second connecting rod is connected to a reset spring through a connecting column, the outer diameter surface of the second connecting rod is provided with a roller, and one end of one group of the second connecting rods is provided with a distance sensor, and one end of the other group of the second connecting rods is provided with a baffle, the solution The surface rust removal component includes a solution tank and a box body, the solution tank is provided with two groups, and the solution tank is installed at the top of the shell, the box body is provided below the solution tank, and a guide wheel group is provided on the inner side of the box body, the upper end face of the solution tank is provided with a liquid inlet, and the bottom end face of the solution tank is provided with a drain port, an electric telescopic rod is provided on one side of the drain port, the drain port is connected to a nozzle through a solenoid valve and a water pipe, a driving motor is provided at the bottom of the inner cavity of the box body, and the output end of the driving motor is connected to a stirring rod through a magnetic transmission mechanism, liquid level sensors are provided on the side walls of the solution tank and the inner cavity of the box body, a heating rod is provided on the inner cavity of the box body, a pH sensor is provided on the side walls of the inner cavity of the box body, and a waste liquid port is provided on the bottom end face of the box body.

[0008] Preferably, the rust removal mechanism includes a stepper motor and a driving gear, the stepper motor is installed in the inner cavity of the protective cover, and the output end of the stepper motor is provided with a driving gear, the driving gear is connected to the driven gear through a rack, and the inner diameter surface of the driven gear is provided with a wire brush, and the driven gear is installed on the inner side of the fixed frame.

[0009] Preferably, the cleaning component includes a water tank and an ultrasonic cleaning instrument, the ultrasonic cleaning instrument is provided on the inner side of the water tank, the bottom end face of the water tank is provided with a drain outlet, the upper end face of the water tank is provided with a grating tube, and the inner diameter of the grating tube is provided with a brush.

[0010] Preferably, the driving gear forms a tooth transmission structure with the driven gear through a rack, and the first connecting rod forms a sliding structure with the second connecting rod through a sliding sleeve.

[0011] Preferably, the liquid inlet is connected to the liquid discharge port through the solution tank, the liquid discharge port is connected to the nozzle through the electromagnetic valve and the water pipe, and the drive motor is connected to the stirring rod through the magnetic transmission mechanism.

[0012] Preferably, the stepper motor, sleeve, distance sensor, electric telescopic rod, solenoid valve, nozzle, drive motor, heating rod, pH sensor and ultrasonic cleaning instrument are electrically connected to a PLC controller, and the PLC controller is electrically connected to an external power supply.

[0013] Technical effects and advantages of this utility model:

[0014] Compared with the prior art, when this automatic acid-base concentration detection device with a pretreatment structure is in use, this device utilizes a mechanical surface rust removal component to first perform surface treatment on the steel wire, so that the steel wire can be further derusted by a solution surface rust removal component. Moreover, when the mechanical surface rust removal component is passed, a detection mechanism can also be utilized to detect the diameter and material of the steel wire. At the same time, the solution tank can be replenished in time through the solution surface rust removal component, thereby avoiding a decrease in solution concentration when the solution reacts with the acid or alkali of the steel wire, thereby avoiding failure to achieve the effect of pickling the steel wire.

[0015] Compared with the prior art, this automatic acid-base concentration detection device with a pretreatment structure is used, in which the surface of the steel wire is cleaned by a mechanical surface rust removal component, and the stepper motor is started. The stepper motor drives the driven gear to rotate through the driving gear and the rack, thereby driving the wire brush to clean the surface of the steel wire, and then the diameter is detected by the diameter detection component in the detection mechanism, wherein the first connecting rod, the second connecting rod and the sliding sleeve form a frame, and the roller uses the second connecting rod, the sliding sleeve and the return spring to squeeze the steel wire, thereby facilitating the detection of the steel wire, and at the same time uses the distance sensor and the baffle to detect the distance between the steel wires, and then the steel wire material is detected by the material detector, thereby realizing rust removal, diameter and material detection through the above structure.

[0016] Compared with the prior art, the automatic detection device for acid and alkali concentration with a pretreatment structure performs rust removal on the surface of the steel wire through a solution surface rust removal component during use, wherein the steel wire passes through the inner side of the box when passing through the guide wheel assembly, and the solution tank is used to replenish the solution inside the box in time, wherein the solution enters the inner side of the box through the liquid inlet, and the solution inside the box is discharged from the liquid discharge port, wherein the electric telescopic rod drives the nozzle to move up and down, and is connected to the nozzle through the electromagnetic valve and the water pipe through the liquid discharge port, thereby avoiding splashing of the solution and facilitating the infusion of the solution into the inner side of the box, and at the same time, the driving motor is connected to the magnetic transmission of the stirring rod through the magnetic transmission mechanism to stir the solution, thereby facilitating The invention is used for rust removal of steel wire, and the solution is heated by a heating rod, and the amount of solution in the solution tank and the inner cavity of the tank is detected by a liquid level sensor. At the same time, a pH sensor is used to detect the solution so that when the pH is not suitable, the liquid can be replenished in time through the tank. Finally, the liquid flows out through the waste liquid port, and then the surface of the steel wire is cleaned by the water tank and the ultrasonic cleaning instrument in the cleaning component. At the same time, the liquid is discharged through the drain port, and the surface of the steel wire is cleaned with a wire wiping tube. Through the above structure, the solution surface rust removal component can replenish the solution tank in time, thereby avoiding the acidity and alkalinity of the solution to the steel wire, which causes the solution concentration to drop, and avoids the effect of pickling the steel wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the front cross-section structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the top-sectional structure of the utility model.

[0020] Figure 4 This is a schematic diagram of the front cross-section structure of the mechanical surface rust removal component of the utility model.

[0021] Figure 5 This is a schematic diagram of the front cross-section structure of the solution surface rust removal component of the utility model.

[0022] Figure 6 This is a schematic diagram of the top-sectional structure of the diameter detection component of the utility model.

[0023] Figure 7 It is a schematic diagram of the side sectional structure of the rust removal mechanism of the utility model.

[0024] The accompanying drawings are marked as follows: 1. housing; 2. feed port; 3. discharge port; 4. mechanical surface rust removal assembly; 41. rust removal mechanism; 411. stepping motor; 412. driving gear; 413. rack; 414. driven gear; 415. wire brush; 416. fixing bracket; 42. detection mechanism; 43. protective cover; 44. diameter detection assembly; 441. first connecting rod; 442. second connecting rod; 443. sliding sleeve; 444. return spring; 445. roller; 446. distance sensor; 447 , baffle; 45. Material testing instrument; 5. Solution surface rust removal component; 51. Solution tank; 52. Box body; 53. Guide wheel assembly; 54. Liquid inlet; 55. Liquid discharge port; 56. Electric telescopic rod; 57. Solenoid valve; 58. Nozzle; 59. Drive motor; 510. Magnetic transmission mechanism; 511. Stirring rod; 512. Heating rod; 513. pH sensor; 514. Waste liquid port; 6. Cleaning component; 61. Water tank; 62. Ultrasonic cleaning instrument; 63. Drain; 64. Wire scraping tube. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] As attached Figures 1 to 3 The device is an automatic acid-base concentration detection device with a pretreatment structure, comprising a housing 1, a feed port 2, a discharge port 3, a mechanical surface rust removal component 4, a solution surface rust removal component 5, and a cleaning component 6. The feed port 2 is mounted on a side end surface of the housing 1, and the discharge port 3 is provided on a side of the housing 1 away from the feed port 2. The inner cavity of the housing 1 is provided with the mechanical surface rust removal component 4, and the solution surface rust removal component 5 is provided on one side of the mechanical surface rust removal component 4. The cleaning component 6 is provided on the side of the solution surface rust removal component 5 away from the mechanical surface rust removal component 4.

[0028] The mechanical surface rust removal assembly 4 includes a rust removal mechanism 41 and a detection mechanism 42. The rust removal mechanism 41 and the detection mechanism 42 are both installed in a protective cover 43, and the rust removal mechanism 41 is installed on one side of the detection mechanism 42. The detection mechanism 42 includes a diameter detection assembly 44 and a material detector 45. The diameter detection assembly 44 includes a first connecting rod 441 and a second connecting rod 442. The first connecting rod 441 and the second connecting rod 442 are each provided with two groups, and the first connecting rod 441 and the second connecting rod 442 are cross-arranged in a "well" shape, and the contact surface between the second connecting rod 442 and the first connecting rod 441 is provided with a sliding sleeve 443. The outer diameter surface of the second connecting rod 442 is connected to a reset spring 444 through a connecting column, and the outer diameter surface of the second connecting rod 442 is provided with a roller 445. One end of one group of the second connecting rods 442 is provided with a distance sensor 446, and one end of the other group of the second connecting rods 442 is provided with a baffle 447. The surface rust removal component 5 of the solution comprises a solution tank 51 and a box body 52. ​​The solution tank 51 is provided with two groups, and the solution tank 51 is installed at the top of the housing 1. The box body 52 is provided below the solution tank 51, and the inner side of the box body 52 is provided with a guide wheel group 53. The upper end surface of the solution tank 51 is provided with a liquid inlet 54, and the bottom end surface of the solution tank 51 is provided with a liquid discharge port 55. An electric telescopic rod 56 is provided on one side of the liquid discharge port 55. The liquid discharge port 55 is electrically operated. The magnetic valve 57 and the water pipe are connected to a nozzle 58, a drive motor 59 is provided at the bottom of the inner cavity of the box body 52, and the output end of the drive motor 59 is connected to a stirring rod 511 through a magnetic transmission mechanism 510, liquid level sensors are provided on the side walls of the solution tank 51 and the inner cavity of the box body 52, a heating rod 512 is provided in the inner cavity of the box body 52, a pH sensor 513 is provided on the side wall of the inner cavity of the box body 52, and a waste liquid port 514 is provided on the bottom end face of the box body 52.

[0029] Among them: the first connecting rod 441, the second connecting rod 442 and the sliding sleeve 443 form a frame, and the roller 445 uses the second connecting rod 442, the sliding sleeve 443 and the return spring 444 to squeeze the steel wire, which is convenient for detecting the steel wire. At the same time, the distance sensor 446 and the baffle 447 are used to detect the distance between the steel wires, and then the material detector 45 is used to detect the steel wire material, thereby realizing rust removal, diameter, and material detection. The solution surface rust removal component 5 performs solution rust removal on the surface of the steel wire. When the steel wire passes through the guide wheel group 53, the steel wire passes through the inner side of the box body 52, and the solution is replenished in time to the inner side of the box body 52 through the solution tank 51. The solution enters the inner side of the box body 52 through the liquid inlet 54, and the solution inside the box body 52 is discharged from the drain port 55. The electric telescopic rod 56 drives the nozzle 58 to move up and down , and the discharge port 55 is connected to the nozzle 58 through the electromagnetic valve 57 and the water pipe to avoid splashing of the solution, so as to facilitate the filling of the solution into the inner side of the box body 52. ​​At the same time, the driving motor 59 is connected to the stirring rod 511 through the magnetic transmission mechanism 510 to stir the solution, thereby facilitating the rust removal of the steel wire. The solution is heated by the heating rod 512, and the liquid level sensor is used to detect the amount of solution in the solution tank 51 and the inner cavity of the box body 52. ​​At the same time, the pH sensor 513 is used to detect the solution so that when the pH is not suitable, the solution is replenished in time through the box body 52. ​​Finally, the liquid flows out through the waste liquid port 514. The solution surface rust removal component 5 can replenish the solution tank 51 in time to avoid the solution concentration decreasing when the solution is acidic or alkaline to the steel wire, thereby avoiding the failure to achieve the effect of pickling the steel wire.

[0030] Example 2

[0031] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working methods. Figures 1 to 7 As shown, see the following description for details:

[0032] As a preferred embodiment, the rust removal mechanism 41 includes a stepper motor 411 and a driving gear 412. The stepper motor 411 is installed in the inner cavity of the protective cover 43, and the output end of the stepper motor 411 is provided with a driving gear 412. The driving gear 412 is connected to the driven gear 414 through a rack 413, and the inner diameter surface of the driven gear 414 is provided with a wire brush 415. The driven gear 414 is installed on the inner side of the fixed frame 416, wherein the surface of the steel wire is cleaned by the mechanical surface rust removal component 4, and the stepper motor 411 is started. The stepper motor 411 uses the driving gear 412 and the rack 413 to drive the driven gear 414 to rotate, driving the wire brush 415 to clean the surface of the steel wire, so that the diameter detection component 44 in the detection mechanism 42 can be used for diameter detection.

[0033] As a preferred embodiment, the cleaning component 6 includes a water tank 61 and an ultrasonic cleaning instrument 62. The ultrasonic cleaning instrument 62 is provided on the inner side of the water tank 61, the bottom end face of the water tank 61 is provided with a drain outlet 63, the upper end face of the water tank 61 is provided with a grating tube 64, and the inner diameter of the grating tube 64 is provided with a brush. Then, the surface of the steel wire is cleaned by the water tank 61 and the ultrasonic cleaning instrument 62 in the cleaning component 6, and the liquid is discharged by using the drain outlet 63, and the surface of the steel wire is cleaned by using the grating tube 64.

[0034] As a preferred embodiment, the driving gear 412 forms a tooth transmission structure with the driven gear 414 through the rack 413 , and the first connecting rod 441 forms a sliding structure with the second connecting rod 442 through the sliding sleeve 443 .

[0035] As a preferred embodiment, the liquid inlet 54 forms a communication structure with the liquid discharge port 55 through the solution tank 51, the liquid discharge port 55 forms a communication structure with the nozzle 58 through the solenoid valve 57 and the water pipe, and the drive motor 59 forms a magnetic transmission structure with the stirring rod 511 through the magnetic transmission mechanism 510.

[0036] As a preferred embodiment, the stepper motor 411, the sleeve 443, the distance sensor 446, the electric telescopic rod 56, the solenoid valve 57, the nozzle 58, the drive motor 59, the heating rod 512, the pH sensor 513 and the ultrasonic cleaning instrument 62 are electrically connected to the PLC controller, and the PLC controller is electrically connected to an external power supply.

[0037] The working process of the utility model is as follows: first, the surface of the steel wire is cleaned by the mechanical surface rust removal component 4, the stepping motor 411 is started, the stepping motor 411 drives the driven gear 414 to rotate through the driving gear 412 and the rack 413, and drives the wire brush 415 to clean the surface of the steel wire, and the diameter detection component 44 in the detection mechanism 42 is used to detect the diameter, wherein the first connecting rod 441, the second connecting rod 442 and the sliding sleeve 443 form a frame, and the roller 445 uses the second connecting rod 442, the sliding sleeve 443 to .... 43 and the return spring 444 are used to squeeze the steel wire, and at the same time, the distance sensor 446 and the baffle 447 are used to detect the distance between the steel wires, and then the material detector 45 is used to detect the steel wire material, wherein the surface rust removal component 5 of the steel wire is used to remove rust on the surface of the steel wire, wherein the steel wire passes through the inner side of the box body 52 when passing through the guide wheel group 53, and the solution tank 51 is used to replenish the solution inside the box body 52 in time, wherein the solution enters the inner side of the box body 52 through the liquid inlet 54, and the solution inside the box body 52 is discharged from the drain port 55. The electric telescopic rod 56 drives the nozzle 58 to move up and down, and is connected to the nozzle 58 through the discharge port 55 via the electromagnetic valve 57 and the water pipe, thereby avoiding the solution from splashing and facilitating the solution to be poured into the inner side of the box body 52. ​​At the same time, the driving motor 59 is connected to the stirring rod 511 through the magnetic transmission mechanism 510 to stir the solution, thereby facilitating the rust removal of the steel wire, and the solution is heated by the heating rod 512, and the amount of solution in the solution tank 51 and the inner cavity of the box body 52 is detected by the liquid level sensor, and the solution is also used. The solution is detected by the pH sensor 513 so that when the pH is not suitable, the liquid can be replenished in time through the box 52. Finally, the liquid flows out through the waste liquid port 514, and the water tank 61 and the ultrasonic cleaning instrument 62 in the cleaning component 6 are used to clean the surface of the steel wire. At the same time, the liquid is discharged through the drain port 63, and the wire cleaning tube 64 is used to clean the surface of the steel wire. The solution surface rust removal component 5 can replenish the solution tank 51 in time, thereby avoiding the solution concentration decreasing when the solution is acidic or alkaline to the steel wire.

[0038] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic acid-base concentration detection device with a pretreatment structure, comprising a housing (1), a feed port (2), a discharge port (3), a mechanical surface rust removal component (4), a solution surface rust removal component (5) and a cleaning component (6), characterized in that: The feed port (2) is mounted on a side end surface of the housing (1), and a discharge port (3) is provided on a side of the housing (1) away from the feed port (2); a mechanical surface rust removal component (4) is provided in the inner cavity of the housing (1), and a liquid surface rust removal component (5) is provided on one side of the mechanical surface rust removal component (4); and a cleaning component (6) is provided on a side of the liquid surface rust removal component (5) away from the mechanical surface rust removal component (4); The mechanical surface rust removal assembly (4) comprises a rust removal mechanism (41) and a detection mechanism (42), wherein the rust removal mechanism (41) and the detection mechanism (42) are both installed in a protective cover (43), and the rust removal mechanism (41) is installed on one side of the detection mechanism (42), and the detection mechanism (42) comprises a diameter detection assembly (44) and a material detector (45), and the diameter detection assembly (44) comprises a first connecting rod (441) and a second connecting rod (442), and the first connecting rod (441) and the second connecting rod (442) are both provided with two groups, and the first connecting rod (441) and the second connecting rod (442) are ... The connecting rod (441) and the second connecting rod (442) are arranged crosswise in a "well" shape, and a sliding sleeve (443) is provided on the contact surface between the second connecting rod (442) and the first connecting rod (441), the outer diameter surface of the second connecting rod (442) is connected to a return spring (444) through a connecting column, and a roller (445) is provided on the outer diameter surface of the second connecting rod (442), and one end of one group of the second connecting rods (442) is provided with a distance sensor (446), and one end of the other group of the second connecting rods (442) is provided with a baffle (447), and the solution The surface rust removal component (5) comprises a solution tank (51) and a box body (52), wherein the solution tank (51) is provided with two groups, and the solution tank (51) is installed at the top of the housing (1), the box body (52) is provided below the solution tank (51), and the inner side of the box body (52) is provided with a guide wheel group (53), the upper end surface of the solution tank (51) is provided with a liquid inlet (54), and the bottom end surface of the solution tank (51) is provided with a liquid discharge port (55), and an electric telescopic rod (56) is provided on one side of the liquid discharge port (55), and the liquid discharge port (55) is electrically operated. The magnetic valve (57) and the water pipe are connected to a nozzle (58). A driving motor (59) is provided at the bottom of the inner cavity of the box (52), and the output end of the driving motor (59) is connected to a stirring rod (511) through a magnetic transmission mechanism (510). Liquid level sensors are provided on the side walls of the solution tank (51) and the inner cavity of the box (52). A heating rod (512) is provided in the inner cavity of the box (52). A pH sensor (513) is provided on the side walls of the inner cavity of the box (52). A waste liquid port (514) is provided on the bottom end surface of the box (52).

2. The automatic acid-base concentration detection device with a pretreatment structure according to claim 1, characterized in that: The rust removal mechanism (41) comprises a stepping motor (411) and a driving gear (412). The stepping motor (411) is installed in the inner cavity of the protective cover (43), and the output end of the stepping motor (411) is provided with a driving gear (412). The driving gear (412) is connected to a driven gear (414) via a rack (413), and a wire brush (415) is provided on the inner diameter surface of the driven gear (414). The driven gear (414) is installed on the inner side of a fixing frame (416).

3. The automatic acid-base concentration detection device with a pretreatment structure according to claim 2, characterized in that: The cleaning assembly (6) comprises a water tank (61) and an ultrasonic cleaning instrument (62), wherein the ultrasonic cleaning instrument (62) is provided on the inner side of the water tank (61), a drain outlet (63) is provided on the bottom end surface of the water tank (61), a grating tube (64) is provided on the upper end surface of the water tank (61), and a brush is provided on the inner diameter of the grating tube (64).

4. The automatic acid-base concentration detection device with a pretreatment structure according to claim 2, characterized in that: The driving gear (412) forms a tooth transmission structure with the rack (413) and the driven gear (414), and the first connecting rod (441) forms a sliding structure with the second connecting rod (442) through the sliding sleeve (443).

5. The automatic acid-base concentration detection device with a pretreatment structure according to claim 1 is characterized in that: The liquid inlet (54) is connected to the liquid outlet (55) through the solution tank (51), and the liquid outlet (55) is connected to the nozzle (58) through the electromagnetic valve (57) and the water pipe. The driving motor (59) is connected to the stirring rod (511) through the magnetic transmission mechanism (510) to form a magnetic transmission structure.

6. The automatic acid-base concentration detection device with a pretreatment structure according to claim 3, characterized in that: The stepping motor (411), the sliding sleeve (443), the distance sensor (446), the electric telescopic rod (56), the solenoid valve (57), the nozzle (58), the driving motor (59), the heating rod (512), the pH sensor (513) and the ultrasonic cleaning instrument (62) are electrically connected to a PLC controller, and the PLC controller is electrically connected to an external power supply.

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