Sensor with anti-corrosion structure applied to research and development of chemical products

Abstract

The invention discloses a sensor with an anti-corrosion structure applied to research and development of chemical products in the technical field of chemical industry, the sensor comprises a protective shell and a sensor body, the protective shell sleeves the sensor body, the lower end of the sensor body is fixedly provided with a detection cavity, and the lower end of the detection cavity is fixedly provided with a limiting seat; a guide-in pipe is fixedly installed in the limiting seat, an upper connecting pipe is fixedly installed at the lower end of the guide-in pipe, a lower connecting pipe is rotatably installed at the lower end of the upper connecting pipe, the lower end of the lower connecting pipe penetrates through the lower end of the protective shell, extends out of the protective shell and is fixedly provided with a sampling pipe, and a sampling piece is fixedly installed at the lower end of the sampling pipe. The temperature of deep liquid can be conveniently and directly detected, interference of upper liquid on detection is avoided, detection liquid is prevented from directly making contact with the sensor, the corrosion resistance of the sensor is improved, and the situation that liquid corrodes parts and influences the sensitivity of the sensor is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of chemical industry, and in particular to a sensor with an anti-corrosion structure used in the research and development of chemical products. Background Art

[0002] In the chemical production process, it is necessary to mix a variety of chemical raw materials to obtain the target product. The reaction between chemical raw materials is affected by environmental factors such as temperature and humidity, especially the temperature environment. For most chemical raw material reactions, different reaction temperatures will obtain different target products. In order to ensure the purity of the target product obtained in chemical production, it is necessary to control the reaction temperature inside the chemical equipment during the chemical processing process.

[0003] With the progress of society and the development of the chemical industry, many raw materials that can react with many metals and non-metals have been widely used in chemical production, such as concentrated sulfuric acid. Such chemical reaction raw materials are highly corrosive. When the sensor measures its temperature, its strong corrosiveness will damage the internal parts of the sensor, thereby affecting the sensitivity and service life of the sensor, thereby affecting the sensor's detection results, making the chemical production purity low. Moreover, when detecting the temperature of the deep liquid, the sensor must first pass through the upper liquid. The temperature of the upper liquid will interfere with the temperature detection of the deep liquid, and it is impossible to accurately obtain the temperature of the deep chemical processing liquid. Summary of the invention

[0004] The technical problem of the present invention is to provide a sensor with a corrosion-resistant structure used in the research and development of chemical products, so as to facilitate the direct detection of deep liquid temperature, avoid interference of upper liquid on detection, avoid direct contact of detection liquid with the sensor, increase the corrosion resistance of the sensor, and avoid liquid corrosion of parts affecting the sensitivity of the sensor.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sensor with a corrosion-resistant structure used in the research and development of chemical products, comprising a protective shell and a sensor body, the protective shell is sleeved on the outside of the sensor body, a detection cavity is fixedly installed at the lower end of the sensor body, a limit seat is fixedly installed at the lower end of the detection cavity, an introduction tube is fixedly installed in the limit seat, an upper connecting tube is fixedly installed at the lower end of the introduction tube, a lower connecting tube is rotatably installed at the lower end of the upper connecting tube, and the lower end of the lower connecting tube passes through the lower end of the protective shell and extends to the protective shell A sampling tube is fixedly installed outside the detection chamber, a sampling piece is fixedly installed at the lower end of the sampling tube, a connecting rod is slidably installed in the detection chamber, a connecting plate is fixedly installed at one end of the connecting rod which is located at the sampling piece, a movable plug is fixedly installed on the connecting plate, the movable plug fits with the lower end of the sampling tube, a suction device is arranged in the upper connecting tube, the suction device can quickly introduce liquid into the detection chamber after the movable plug is separated from the sampling tube, a fixing rod is arranged in the detection chamber, a fixing seat is fixedly installed at the lower end of the fixing rod, and a temperature sensing piece is fixedly installed at the lower end of the fixing seat.

[0006] As a further solution of the present invention, the suction device includes an active rod and a driven rod, the active rod is rotatably mounted on one side of the upper connecting tube, one end of the active rod is in the upper connecting tube and is fixedly connected to the built-in suction pump, an active bevel gear is fixedly mounted on one end of the active rod away from the upper connecting tube, the driven rod is rotatably mounted on the bottom of the protective shell, a driven bevel gear is fixedly mounted on the upper end of the driven rod, and the active bevel gear is meshed with the driven bevel gear.

[0007] As a further solution of the present invention, a driving gear is fixedly installed on the lower end of the driven rod, a positioning gear ring is rotatably installed on the bottom of the protective shell corresponding to the outer side of the lower connecting tube, and an inner tooth is provided on the side of the positioning gear ring close to the lower connecting tube. The upper end of the connecting rod passes through the bottom of the protective shell and extends into the protective shell and is fixedly installed with an upper threaded rod. A threaded member is rotatably installed in the protective shell corresponding to the position of the upper threaded rod, the threaded member is threadedly connected to the upper threaded rod, and an inner gear is fixedly installed on the threaded member, the inner gear is meshed with the inner teeth, and the positioning gear ring is meshed with the driving gear.

[0008] As a further solution of the present invention, the upper end of the introduction tube extends into the detection cavity and is fixedly installed with a connecting bucket, a plurality of detection tubes are fixedly installed on the connecting bucket, an upper mounting plate is fixedly installed on the upper end of the detection tube, an upper flushing tube is fixedly installed on the upper surface of the upper mounting plate at a position corresponding to the detection tube, a through groove is provided on the upper mounting plate at a position corresponding to the upper flushing tube and the detection tube, and the through groove connects the upper flushing tube and the detection tube.

[0009] As a further solution of the present invention, a mounting shaft is rotatably installed in one side of the upper mounting plate corresponding to the through groove, a rotating seat is fixedly installed on the mounting shaft, a movable baffle is fixedly installed on one side of the rotating seat, an internal gear is fixedly installed on the mounting shaft, an internal gear ring is rotatably installed in the upper mounting plate, the outer teeth of the internal gear ring are meshed with the internal gear, and a driving gear is rotatably installed in the upper mounting plate, and the driving gear is meshed with the inner teeth of the internal gear ring.

[0010] As a further solution of the present invention, the detection tubes are provided in multiple groups and all surround the outside of the temperature sensing element. An insulation layer is fixedly installed in the detection cavity. The insulation layer is a circular vertical plate and surrounds the detection tubes and the temperature sensing element inside.

[0011] As a further solution of the present invention, a water inlet component is fixedly installed on the upper end of the upper flushing pipe, a water inlet pipe is fixedly installed on one side of the upper surface of the water inlet component, a storage component is fixedly installed on one end of the water inlet pipe away from the water inlet component, and the storage component is fixedly installed on the upper end of the detection cavity.

[0012] As a further solution of the present invention, the detection tube is made of heat-insulating transparent glass, the upper end of the storage component can be externally connected to a water pipe, and the connecting rod and the sampling tube are both made of siliconized glass.

[0013] The beneficial effects of the present invention are: When the temperature of the deep liquid in the chemical tank is detected in the present invention, the sampling piece can be introduced into the deep liquid, and then the movable plug at the bottom of the sampling tube is opened to prevent the upper liquid from entering the sampling tube before the sensor reaches the deep layer of the liquid, and to prevent the upper liquid from mixing into the deep liquid for detection. In the process of the introduction of the device, the protective shell is wrapped around the outside of the sensor body to prevent the liquid outside the detection cavity from interfering with the sensor, thereby preventing the upper liquid temperature from interfering with the temperature sensor's detection of the deep liquid temperature, thereby ensuring the accuracy of the deep liquid temperature detection. The protective shell wrapped around the outside of the sensor also isolates the chemical liquid from directly eroding the sensor surface, thereby preventing the sensor surface from being corroded, increasing the stability of the detection parts inside the sensor, and increasing the service life of the sensor.

[0014] In the present invention, the liquid to be detected diffuses into the detection tube through the connecting bucket, so that the detection tube surrounding the temperature sensing element is filled with chemical liquid of corresponding depth, the liquid temperature is derived through the detection tube, and the temperature sensing element detects the surrounding temperature for detection, thereby obtaining the temperature of the chemical liquid of corresponding depth, so that the temperature sensing element performs temperature detection through the detection tube, and the chemical liquid does not contact the temperature sensing element during the detection process, thereby avoiding corrosion of the temperature sensing element by the chemical liquid, and only the protective shell and the outer surface of the sampling tube are in direct contact with the chemical liquid during the detection process, thereby avoiding corrosion of the outside of the sensor, and while ensuring that the detection liquid is in close contact with the temperature sensing element, the inductive parts inside the sensor are also not in direct contact with the liquid, thereby reducing the probability of corrosion and damage of the internal parts of the sensor and increasing the service life of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention when viewed from the bottom up; Figure 3 For the present invention Figure 2 Partial schematic diagram of the structure at A in the middle Figure 4 It is a structural cross-sectional view of the present invention; Figure 5 For the present invention Figure 4 A partial schematic diagram of the structure at B in the middle; Figure 6 It is a schematic diagram of the internal structure of the present invention; Figure 7 For the present invention Figure 6 A partial schematic diagram of the structure at C in the middle; Figure 8 The internal structure of the present invention is cut away Figure 1 ; Fig. 9 For the present invention Figure 8 A partial schematic diagram of the structure at D in the middle; Fig.10 The internal structure of the present invention is cut away Figure 2 ; Fig.11 For the present invention Fig.10 Partial schematic diagram of the structure at E in the middle.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Protective housing; 2. Sampling tube; 3. Connecting rod; 4. Sampling piece; 5. Connecting plate; 6. Movable plug; 7. Sensor body; 8. Detection chamber; 9. Driving gear; 10. Driving bevel gear; 11. Driven bevel gear; 12. Driven rod; 13. Upper connecting tube; 14. Positioning gear ring; 15. Inner teeth; 16. Upper threaded rod; 17. Threaded piece; 18. Inner gear; 19. Lower connecting tube; 20. Limit seat; 21. Active rod; 22. Insulation layer; 23. Storage part; 24. Connecting bucket; 25. Inlet pipe; 26. Detection tube; 27. Fixed seat; 28. Fixed rod; 29. ​​Temperature sensing part; 30. Water inlet part; 31. Water inlet pipe; 32. Upper flushing pipe; 33. Movable baffle; 34. Internal gear ring; 35. Mounting shaft; 36. Internal gear; 37. Rotating seat; 38. Driving gear; 39. Upper mounting plate. DETAILED DESCRIPTION

[0018] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 11 The present invention provides a technical solution: a sensor with an anti-corrosion structure used in the research and development of chemical products, comprising a protective shell 1 and a sensor body 7, the protective shell 1 is sleeved on the outside of the sensor body 7, a detection cavity 8 is fixedly installed at the lower end of the sensor body 7, a limit seat 20 is fixedly installed at the lower end of the detection cavity 8, an introduction pipe 25 is fixedly installed in the limit seat 20, an upper connecting pipe 13 is fixedly installed at the lower end of the introduction pipe 25, a lower connecting pipe 19 is rotatably installed at the lower end of the upper connecting pipe 13, and the lower end of the lower connecting pipe 19 passes through the lower end of the protective shell 1 and extends to the outside of the protective shell 1 and is fixed A sampling tube 2 is fixedly installed, a sampling piece 4 is fixedly installed at the lower end of the sampling tube 2, a connecting rod 3 is slidably installed in the sampling piece 4, a connecting plate 5 is fixedly installed at one end of the connecting rod 3 on the sampling piece 4, a movable plug 6 is fixedly installed on the connecting plate 5, the movable plug 6 fits with the lower end of the sampling tube 2, a suction device is arranged in the upper connecting tube 13, the suction device can quickly introduce the liquid into the detection cavity 8 after the movable plug 6 is separated from the sampling tube 2, a fixing rod 28 is arranged in the detection cavity 8, a fixing seat 27 is fixedly installed at the lower end of the fixing rod 28, and a temperature sensing component 29 is fixedly installed at the lower end of the fixing seat 27.

[0020] When performing temperature detection of chemical liquid, the sampling piece 4 is inserted into the designated detection position, and the liquid is sent into the introduction tube 25 through the sampling tube 2 by the sampling piece 4, and then sent into the detection chamber 8 by the introduction tube 25. The temperature sensing piece 29 in the detection chamber 8 detects the temperature of the liquid to obtain temperature detection data. When the temperature of the deep liquid in the chemical tank is detected, the sampling piece 4 can be introduced into the deep liquid, and then the movable plug 6 at the bottom of the sampling tube 2 is opened (after the sampling piece 4 reaches the designated position, the suction device is turned on to drive the active rod 21 to rotate, the active rod 21 rotates to drive the active bevel gear 10, the active bevel gear 10 rotates to drive the driven bevel gear 11 meshed therewith to rotate, the driven bevel gear 11 rotates to drive the driven rod 12 to rotate, the driven rod 12 rotates to drive the active gear 9 to rotate, the active gear 9 rotates to drive the positioning gear ring 14 meshed therewith to rotate, the positioning gear ring 14 rotates to drive the inner gear 18 to rotate through the inner teeth 15, the inner gear 18 rotates to drive the threaded member 17 to rotate, the threaded member 17 rotates with the upper threaded rod 16 interact with each other, thereby driving the upper threaded rod 16 to move downward, and the upper threaded rod 16 moves downward to drive the connecting rod 3 to move downward, and the connecting rod 3 moves downward through the connecting plate 5 to drive the movable plug 6 to move downward, so that the movable plug 6 is separated from the lower end of the sampling tube 2, and the separated liquid can enter the sampling tube 2, avoiding the liquid entering the sampling tube 2 before the sampling tube 2 reaches the designated detection position to interfere with the sampling purity, and then interfere with the accuracy of the temperature detection data), avoiding the upper layer of liquid entering the sampling tube 2 before the sensor reaches the deep layer of the liquid, avoiding the upper layer of liquid mixing with the deep layer of liquid for detection cavity 8, and during the introduction of the device, the protective shell 1 is wrapped around the outside of the sensor body 7 to avoid the liquid outside the detection cavity 8 interfering with the sensor, thereby avoiding the upper layer of liquid temperature interfering with the temperature sensor's detection of the deep layer of liquid temperature, ensuring the accuracy of the deep layer of liquid temperature detection, and the protective shell 1 wrapped around the outside of the sensor also isolates the chemical liquid from directly eroding the sensor surface, avoiding the sensor surface from being corroded, increasing the stability of the internal detection parts of the sensor, and increasing the service life of the sensor.

[0021] When the temperature of the deep liquid in the chemical tank is detected in the present invention, the sampling piece 4 can be introduced into the deep liquid, and then the movable plug 6 at the bottom of the sampling tube 2 is opened to prevent the upper liquid from entering the sampling tube 2 before the sensor reaches the deep layer of the liquid, and to prevent the upper liquid from mixing into the deep liquid for detection cavity 8. During the introduction of the device, the protective shell 1 is wrapped around the outside of the sensor body 7 to prevent the liquid outside the detection cavity 8 from interfering with the sensor, thereby preventing the upper liquid temperature from interfering with the temperature sensor's detection of the deep liquid temperature, thereby ensuring the accuracy of the deep liquid temperature detection. The protective shell 1 wrapped around the outside of the sensor also isolates the chemical liquid from directly eroding the sensor surface, thereby preventing the sensor surface from being corroded, increasing the stability of the detection parts inside the sensor, and increasing the service life of the sensor.

[0022] As a further design of the present invention, the suction device includes an active rod 21 and a driven rod 12. The active rod 21 is rotatably installed on one side of the upper connecting tube 13. One end of the active rod 21 is in the upper connecting tube 13 and is fixedly connected to the built-in suction pump. An active bevel gear 10 is fixedly installed on one end of the active rod 21 away from the upper connecting tube 13. The driven rod 12 is rotatably installed on the bottom of the protective shell 1. The upper end of the driven rod 12 is fixedly installed with a driven bevel gear 11, and the active bevel gear 10 is meshed with the driven bevel gear 11.

[0023] As a further design of the present invention, a driving gear 9 is fixedly installed on the lower end of the driven rod 12, and a positioning gear ring 14 is rotatably installed on the outer side of the lower connecting tube 19 corresponding to the bottom of the protective shell 1. The positioning gear ring 14 is provided with inner teeth 15 on the side close to the lower connecting tube 19. The upper end of the connecting rod 3 passes through the bottom of the protective shell 1 and extends into the protective shell 1 and is fixedly installed with an upper threaded rod 16. A threaded member 17 is rotatably installed in the protective shell 1 at a position corresponding to the upper threaded rod 16. The threaded member 17 is threadedly connected to the upper threaded rod 16, and an inner gear 18 is fixedly installed on the threaded member 17. The inner gear 18 is meshed with the inner teeth 15, and the positioning gear ring 14 is meshed with the driving gear 9.

[0024] After the sampling member 4 reaches the designated position, the suction device is turned on to drive the active rod 21 to rotate. The active rod 21 rotates to drive the active bevel gear 10. The active bevel gear 10 rotates to drive the driven bevel gear 11 meshed therewith to rotate. The driven bevel gear 11 rotates to drive the driven rod 12 to rotate. The driven rod 12 rotates to drive the active gear 9 to rotate. The active gear 9 rotates to drive the positioning gear ring 14 meshed therewith to rotate. The positioning gear ring 14 rotates through the inner teeth 15 to drive the inner gear 18 to rotate. The inner gear 18 rotates to drive the threaded member 17 to rotate. The threaded member 17 rotates and interacts with the upper threaded rod 16, thereby driving the upper threaded rod 16 to move downward. The upper threaded rod 16 moves downward to drive the connecting rod 3 to move downward. The connecting rod 3 moves downward to drive the movable plug 6 to move downward through the connecting plate 5, so that the movable plug 6 is separated from the lower end of the sampling tube 2. The separated liquid can enter the sampling tube 2, thereby avoiding the problem that the liquid enters the sampling tube 2 before the sampling tube 2 reaches the designated detection position to interfere with the sampling purity, thereby interfering with the accuracy of the temperature detection data.

[0025] As a further design of the present invention, the upper end of the introduction tube 25 extends into the detection chamber 8 and is fixedly installed with a connecting bucket 24, on which a plurality of detection tubes 26 are fixedly installed, and an upper mounting plate 39 is fixedly installed on the upper end of the detection tube 26. An upper flushing tube 32 is fixedly installed on the upper surface of the upper mounting plate 39 at a position corresponding to the detection tube 26, and a through groove is provided on the upper mounting plate 39 at a position corresponding to the upper flushing tube 32 and the detection tube 26, and the through groove connects the upper flushing tube 32 and the detection tube 26.

[0026] When the sampled test liquid sample enters the lower connecting tube 19 through the sampling tube 2, and then enters the upper connecting tube 13 through the lower connecting tube 19, and then enters the introduction tube 25 through the upper connecting tube 13, and then enters the connecting bucket 24 through the introduction tube 25, and then diffuses into the detection tube 26 through the connecting bucket 24, so that the detection tube 26 surrounding the temperature sensing element 29 is filled with chemical liquid of corresponding depth, the liquid temperature is derived through the detection tube 26, and the temperature sensing element 29 detects the surrounding temperature for detection, so as to obtain the temperature of the chemical liquid of corresponding depth, so that the temperature sensing element 29 performs temperature detection across the detection tube 26, and the chemical liquid does not contact the temperature sensing element 29 during the detection process, so as to avoid the chemical liquid from corroding the temperature sensing element 29, and only the protective shell 1 and the outer surface of the sampling tube 2 are in direct contact with the chemical liquid during the detection process, so as to avoid the corrosion of the sensor outside, and while ensuring that the detection liquid is in close contact with the temperature sensing element 29, the inductive parts inside the sensor are not directly in contact with the liquid, so as to reduce the probability of corrosion and damage of the internal parts of the sensor and increase the service life of the sensor.

[0027] In the present invention, the liquid to be detected diffuses into the detection tube 26 through the connecting bucket 24, so that the detection tube 26 surrounding the temperature sensing element 29 is filled with chemical liquid of corresponding depth. The liquid temperature is derived through the detection tube 26, and the temperature sensing element 29 detects the surrounding temperature for detection, thereby obtaining the temperature of the chemical liquid of corresponding depth, so that the temperature sensing element 29 performs temperature detection across the detection tube 26. During the detection process, the chemical liquid does not contact the temperature sensing element 29, thereby preventing the chemical liquid from corroding the temperature sensing element 29. During the detection process, only the outer surface of the protective shell 1 and the sampling tube 2 are in direct contact with the chemical liquid, thereby preventing the outside of the sensor from being corroded. While ensuring that the detection liquid is in close contact with the temperature sensing element 29, the inductive parts inside the sensor are also not in direct contact with the liquid, thereby reducing the probability of corrosion and damage to the internal parts of the sensor and increasing the service life of the sensor.

[0028] As a further design of the present invention, a mounting shaft 35 is rotatably mounted on one side of the upper mounting plate 39 corresponding to the through slot, a rotating seat 37 is fixedly mounted on the mounting shaft 35, a movable baffle 33 is fixedly mounted on one side of the rotating seat 37, an internal gear 36 is fixedly mounted on the mounting shaft 35, an internal gear ring 34 is rotatably mounted in the upper mounting plate 39, the outer teeth of the internal gear ring 34 mesh with the internal gear 36, and a driving gear 38 is rotatably mounted in the upper mounting plate 39, the driving gear 38 meshes with the inner teeth of the internal gear ring 34.

[0029] After the temperature detection is completed, the liquid in the detection tube 26 is discharged, and the driving gear 38 is turned on and rotated. The driving gear 38 rotates to drive the inner gear ring 34 meshing with it to rotate, and the inner gear ring 34 rotates its outer teeth to drive the inner gear 36 to rotate, and the rotation of the inner gear 36 drives the installation shaft 35 to rotate, and the rotation of the installation shaft 35 drives the rotating seat 37 to rotate, and the rotating seat 37 rotates to drive the movable baffle 33 to rotate inside the upper mounting disk 39, so that the movable baffle 33 is rotated away from the upper end of the detection tube 26, so that the detection tube 26 and the upper flushing pipe 32 are connected, and the external clean water enters the water inlet pipe 31 from the storage part 23, and then enters the water inlet part 30 from the water inlet pipe 31, and then flows from the upper flushing pipe 32 to the detection tube 26 through the through groove, so as to flush the detection tube 26 to the inside of the sampling tube 2, and remove the detection liquid adhering to the inner wall of the detection tube 26 to the sampling tube 2.

[0030] As a further design of the present invention, multiple groups of detection tubes 26 are arranged and all surround the outside of the temperature sensing element 29. An insulation layer 22 is fixedly installed in the detection cavity 8. The insulation layer 22 is a circular vertical plate and surrounds the detection tubes 26 and the temperature sensing element 29 inside.

[0031] As a further design of the present invention, a water inlet component 30 is fixedly installed on the upper end of the upper flushing pipe 32, a water inlet pipe 31 is fixedly installed on one side of the upper surface of the water inlet component 30, and a storage component 23 is fixedly installed on the end of the water inlet pipe 31 away from the water inlet component 30, and the storage component 23 is fixedly installed on the upper end of the detection chamber 8.

[0032] As a further design of the present invention, the detection tube 26 is made of heat-insulating transparent glass, the upper end of the storage member 23 can be externally connected to a water pipe, and the connecting rod 3 and the sampling tube 2 are both made of siliconized glass.

[0033] The embodiments of the present invention described above are only examples, and a person skilled in the art of the present invention may make various modifications or derive other equivalent embodiments. Therefore, the present invention is not limited to the embodiments mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention should be determined according to the technical ideas of the attached invention claims. Furthermore, it should be understood that the present invention includes the ideas of the present invention defined by the attached invention claims and all variant technical solutions, equivalent technical solutions and alternative technical solutions within its scope.

Claims

1. A sensor with a corrosion-resistant structure used in the research and development of chemical products, comprising a protective housing (1) and a sensor body (7), characterized in that: The protective shell (1) is sleeved on the outside of the sensor body (7); a detection cavity (8) is fixedly installed at the lower end of the sensor body (7); a limit seat (20) is fixedly installed at the lower end of the detection cavity (8); an introduction tube (25) is fixedly installed in the limit seat (20); an upper connecting tube (13) is fixedly installed at the lower end of the introduction tube (25); a lower connecting tube (19) is rotatably installed at the lower end of the upper connecting tube (13); the lower end of the lower connecting tube (19) passes through the lower end of the protective shell (1) and extends to the outside of the protective shell (1) and is fixedly installed with a sampling tube (2); and a sampling member (4) is fixedly installed at the lower end of the sampling tube (2). A connecting rod (3) is slidably mounted in the sampling member (4); a connecting plate (5) is fixedly mounted on one end of the connecting rod (3) located on the sampling member (4); a movable plug (6) is fixedly mounted on the connecting plate (5); the movable plug (6) is engaged with the lower end of the sampling tube (2); a suction device is arranged in the upper connecting tube (13); the suction device can quickly introduce liquid into the detection chamber (8) after the movable plug (6) is separated from the sampling tube (2); a fixing rod (28) is arranged in the detection chamber (8); a fixing seat (27) is fixedly mounted on the lower end of the fixing rod (28); and a temperature sensing member (29) is fixedly mounted on the lower end of the fixing seat (27).

2. The sensor with corrosion-resistant structure used in the research and development of chemical products according to claim 1, characterized in that: The suction device comprises an active rod (21) and a driven rod (12); the active rod (21) is rotatably mounted on one side of the upper connecting tube (13); one end of the active rod (21) is located in the upper connecting tube (13) and is fixedly connected to a built-in suction pump; an active bevel gear (10) is fixedly mounted on one end of the active rod (21) away from the upper connecting tube (13); the driven rod (12) is rotatably mounted on the bottom of the protective housing (1); a driven bevel gear (11) is fixedly mounted on the upper end of the driven rod (12); the active bevel gear (10) is meshed with the driven bevel gear (11).

3. The sensor with corrosion-resistant structure used in the research and development of chemical products according to claim 2, characterized in that: A driving gear (9) is fixedly mounted on the lower end of the driven rod (12); a positioning toothed ring (14) is rotatably mounted on the bottom of the protective housing (1) corresponding to the outer side of the lower connecting tube (19); an inner tooth (15) is arranged on the side of the positioning toothed ring (14) close to the lower connecting tube (19); an upper end of the connecting rod (3) passes through the bottom of the protective housing (1) and extends into the protective housing (1) and is fixedly mounted with an upper threaded rod (16); a threaded member (17) is rotatably mounted in the protective housing (1) corresponding to the position of the upper threaded rod (16); the threaded member (17) is threadedly connected to the upper threaded rod (16); an inner gear (18) is fixedly mounted on the threaded member (17); the inner gear (18) meshes with the inner tooth (15); and the positioning toothed ring (14) meshes with the driving gear (9).

4. The sensor with corrosion-resistant structure used in the research and development of chemical products according to claim 3, characterized in that: The upper end of the introduction tube (25) extends into the detection chamber (8) and is fixedly mounted with a connection bucket (24); a plurality of detection tubes (26) are fixedly mounted on the connection bucket (24); an upper mounting plate (39) is fixedly mounted on the upper end of the detection tube (26); an upper flushing tube (32) is fixedly mounted on the upper surface of the upper mounting plate (39) at a position corresponding to the detection tube (26); a through groove is provided on the upper mounting plate (39) at a position corresponding to the upper flushing tube (32) and the detection tube (26); the through groove connects the upper flushing tube (32) and the detection tube (26).

5. The sensor with corrosion-resistant structure used in the research and development of chemical products according to claim 4, characterized in that: A mounting shaft (35) is rotatably mounted on one side of the upper mounting plate (39) corresponding to the through slot, a rotating seat (37) is fixedly mounted on the mounting shaft (35), a movable baffle (33) is fixedly mounted on one side of the rotating seat (37), an internal gear (36) is fixedly mounted on the mounting shaft (35), an internal gear ring (34) is rotatably mounted in the upper mounting plate (39), the outer teeth of the internal gear ring (34) mesh with the inner teeth of the internal gear (36), and a driving gear (38) is rotatably mounted in the upper mounting plate (39), the driving gear (38) meshes with the inner teeth of the internal gear ring (34).

6. The sensor with corrosion-resistant structure used in the research and development of chemical products according to claim 5, characterized in that: The detection tubes (26) are arranged in multiple groups and all surround the outside of the temperature sensing element (29). A heat-insulating layer (22) is fixedly installed in the detection cavity (8). The heat-insulating layer (22) is a circular vertical plate and surrounds the detection tubes (26) and the temperature sensing element (29) inside.

7. The sensor with corrosion-resistant structure used in the research and development of chemical products according to claim 6, characterized in that: A water inlet component (30) is fixedly mounted on the upper end of the upper flushing pipe (32); a water inlet pipe (31) is fixedly mounted on one side of the upper surface of the water inlet component (30); a storage component (23) is fixedly mounted on one end of the water inlet pipe (31) away from the water inlet component (30); and the storage component (23) is fixedly mounted on the upper end of the detection chamber (8).

8. The sensor with corrosion-resistant structure used in the research and development of chemical products according to claim 7, characterized in that: The detection tube (26) is made of heat-insulating transparent glass, the upper end of the storage component (23) can be externally connected to a water pipe, and the connecting rod (3) and the sampling tube (2) are both made of siliconized glass.

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