Detection instrument for detecting chloride in drinking water based on silver nitrate volumetric method

Abstract

The utility model relates to the technical field of detection instruments, and in particular to a detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method. The technical scheme includes: a detection cup body, the top cover of the detection cup body is connected to a cup cover, the bottom of the cup cover is provided with a rotating mechanism, and one side of the detection cup body is provided with a connecting mechanism. By titrating a standard silver nitrate solution in water, a rotating motor is started, and the output shaft of the rotating motor rotates to rotate the rotating shaft, and the rotation of the rotating shaft can rotate the rotating plate, and the rotation of the rotating plate can stir the mixed liquid, wherein the rotation of the rotating gear ring can drive the rotating gear to rotate the rotating shaft, and the rotation of the rotating shaft can rotate the rotating plate, which can further mix the mixed liquid, increase the accuracy of the titration amount, stop the titration just when the brick red color appears in the water, and finally perform the calculation, so that the effect of reducing the labor intensity of the staff can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection instruments, in particular to a detection instrument for detecting chloride in drinking water based on a silver nitrate volumetric method. Background Art

[0002] The principle of the silver nitrate volumetric method for detecting chloride in drinking water is to use potassium chromate as an indicator. When silver nitrate is used to titrate chloride, since the solubility of silver chloride is less than that of silver chromate, the chloride ions are first completely precipitated, and then chromate is precipitated in the form of silver chromate, producing a brick red color, indicating that the titration endpoint has been reached. However, in actual use, a detection instrument with a similar structure based on the silver nitrate volumetric method for detecting chloride in drinking water still has many defects, such as: when in use, the agent is generally added to the detection container, and then the container is shaken vigorously to make the drug solution in the container react completely, which requires the staff to use a stirring rod or shake it manually, and the work intensity is high, which increases the labor intensity of the staff. Therefore, it is necessary to design a detection instrument based on the silver nitrate volumetric method for detecting chloride in drinking water. Utility Model Content

[0003] The purpose of the utility model is to provide a detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method, comprising a detection cup body, the top cover of the detection cup body is connected to a cup cover, the bottom of the cup cover is provided with a rotating mechanism, one side of the detection cup body is provided with a connecting mechanism, a rotatable rotating gear ring is provided inside the detection cup body, both sides of the inner wall of the detection cup body are rotatably connected to a rotating shaft through bearings, the surface of the rotating shaft is fixedly connected to a rotating gear, the rotating gear is meshed with the rotating gear ring, the surface of the rotating shaft is fixedly connected to a plurality of evenly distributed rotating plates, the threaded rod can be rotated by starting the rotating motor, and the rotation of the threaded rod can The connecting block applies force, and the connecting block can slide in the inner wall of the connecting groove, so that the connecting rod can move up and down, and the movement of the connecting rod can move the cup cover, and the standard silver nitrate solution is titrated in water, and the rotating motor is started. The output shaft of the rotating motor rotates to rotate the rotating shaft, and the rotation of the rotating shaft can rotate the rotating plate, and the rotation of the rotating plate can stir the mixed liquid, wherein the rotation of the rotating gear ring can drive the rotating gear to rotate the rotating shaft, and the rotation of the rotating shaft can rotate the rotating plate, which can further mix the mixed liquid and increase the accuracy of the titration amount. The titration can be stopped as soon as the brick red color appears in the water, and finally the calculation can be performed. Therefore, the effect of reducing the labor intensity of the staff can be achieved.

[0005] Preferably, the rotating mechanism includes a rotating motor fixedly connected to the top of the cup cover, the output shaft of the rotating motor is fixedly connected to the rotating shaft, both sides of the rotating shaft are fixedly connected to rotating plates, the rotating shaft and the rotating gear ring are fixedly connected by a plurality of fixed rods, the rotating plate is arranged to rotate under the rotation of the rotating shaft, the rotation of the rotating plate can mix the mixed liquid, and the rotation of the output shaft of the rotating motor can cause the rotating shaft to rotate.

[0006] Preferably, a plurality of evenly distributed mixing ports are provided at one end of the rotating plate, and the inner wall cross-section of the mixing port is a trapezoidal structure. The trapezoidal structure design can change the flow rate of the mixed liquid after the mixed liquid passes through the mixing port, so that the mixed liquid can be mixed more fully.

[0007] Preferably, the connecting mechanism includes a connecting rod fixedly connected to one side of the cup cover, the connecting rod is in an L-shaped structure, a connecting groove is provided on the outer wall of one side of the detection cup body, a connecting block is slidably connected to the inner wall of the connecting groove, the connecting block is fixedly connected to the connecting rod, and the connecting block is arranged to slide in the inner wall of the connecting groove. The movement of the connecting block can cause the connecting rod to move, and the movement of the connecting rod can cause the cup cover to move.

[0008] Preferably, a rotating motor is fixedly connected to an outer wall of one side of the detection cup body, and a threaded rod is fixedly connected to the output shaft of the rotating motor. The threaded rod is threadedly connected to the connecting block. The threaded rod can be rotated when the output shaft of the rotating motor rotates. The rotation of the threaded rod can apply force to the connecting block, so that the connecting block can slide.

[0009] Preferably, the cross section of the cup cover is T-shaped, and the cup cover portion located inside the detection cup body is the smaller end. The T-shaped structure can seal the top opening of the detection cup body.

[0010] Preferably, a sealing gasket is fixedly connected to the circumference of the cup cover, the sealing gasket is made of rubber, and the sealing gasket contacts the inner wall of the detection cup body. The provision of the sealing gasket can reduce the gap between the detection cup body and the cup cover, and can further make the detection cup body sealed.

[0011] Preferably, a cavity is provided in the sealing gasket, and the sealing gasket has a double-layer structure. The provision of the cavity can increase the contact area between the sealing gasket and the detection cup body, so that there is no gap between the detection cup body and the cup cover.

[0012] Preferably, a plurality of evenly distributed support columns are fixedly connected to the bottom outer wall of the detection cup body. The provision of the support columns can support the detection cup body and also facilitate the staff to subsequently take the detection cup body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The threaded rod can be rotated by starting the rotating motor, and the rotation of the threaded rod can apply force to the connecting block. At this time, the connecting block can slide in the inner wall of the connecting groove, so that the connecting rod can move up and down. The movement of the connecting rod can move the cup cover. The standard silver nitrate solution is titrated in water, and the rotating motor is started. The output shaft of the rotating motor rotates to rotate the rotating shaft, and the rotation of the rotating shaft can rotate the rotating plate. The rotation of the rotating plate can stir the mixed solution, wherein the rotation of the rotating gear ring can drive the rotating gear to rotate the rotating shaft, and the rotation of the rotating shaft can rotate the rotating plate, which can further mix the mixed solution and increase the accuracy of the titration. The titration can be stopped as soon as the brick red color appears in the water, and finally the calculation can be performed. Therefore, the labor intensity of the staff can be reduced.

[0015] 2. The top opening of the test cup body can be sealed by the T-shaped cup cover, the gap between the test cup body and the cup cover can be reduced by the sealing gasket, and the test cup body can be further sealed. The contact area between the sealing gasket and the test cup body can be increased by the cavity, so that there is no gap between the test cup body and the cup cover. The test cup body can be supported by the support column, which can also facilitate the staff to take the test cup body later. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model highlighting the rotating plate;

[0018] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model highlighting the rotating gear ring.

[0020] In the figure: 1. detection cup body; 2. cup cover; 3. rotating gear ring; 4. rotating shaft; 5. rotating gear; 6. rotating plate; 7. rotating motor; 8. rotating shaft; 9. rotating plate; 10. mixing port; 11. connecting groove; 12. connecting block; 13. connecting rod; 14. rotating motor; 15. threaded rod; 18. sealing gasket; 19. cavity; 20. supporting column. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment 1

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method proposed by the utility model comprises a detection cup body 1, the top cover of the detection cup body 1 is connected to a cup cover 2, the bottom of the cup cover 2 is provided with a rotating mechanism, one side of the detection cup body 1 is provided with a connecting mechanism, a rotatable rotating gear ring 3 is provided inside the detection cup body 1, both sides of the inner wall of the detection cup body 1 are rotatably connected to a rotating shaft 4 through bearings, the surface of the rotating shaft 4 is fixedly connected to a rotating gear 5, the rotating gear 5 is meshed with the rotating gear ring 3, the surface of the rotating shaft 4 is fixedly connected to a plurality of evenly distributed rotating plates 6, the rotating mechanism comprises a rotating motor 7 fixedly connected to the top of the cup cover 2, the output shaft of the rotating motor 7 is fixedly connected to a rotating shaft 8, A rotating plate 9 is fixedly connected to both sides of the rotating shaft 8, and the rotating shaft 8 is fixedly connected to the rotating gear ring 3 by a plurality of fixed rods. A plurality of evenly distributed mixing ports 10 are provided at one end of the rotating plate 9, and the inner wall cross-section of the mixing port 10 is a trapezoidal structure. The connecting mechanism includes a connecting rod 13 fixedly connected to one side of the cup cover 2, and the connecting rod 13 is an L-shaped structure. A connecting groove 11 is provided on the outer wall of one side of the detection cup body 1, and a connecting block 12 is slidably connected to the inner wall of the connecting groove 11, and the connecting block 12 is fixedly connected to the connecting rod 13. A rotating motor 14 is fixedly connected to the outer wall of one side of the detection cup body 1, and a threaded rod 15 is fixedly connected to the output shaft of the rotating motor 14, and the threaded rod 15 is connected to the connecting block 12 by a thread.

[0024] The working principle of the detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method according to the first embodiment is as follows: the threaded rod 15 can be rotated by starting the rotating motor 14, and the rotation of the threaded rod 15 can apply force to the connecting block 12. At this time, the connecting block 12 can slide in the inner wall of the connecting groove 11, so that the connecting rod 13 can move up and down, and the movement of the connecting rod 13 can move the cup cover 2. The silver nitrate standard solution is titrated in water, and the rotating motor 7 is started. The output shaft of the rotating motor 7 rotates to rotate the rotating shaft 8, and the rotation of the rotating shaft 8 can rotate the rotating plate 9. The rotation of the rotating plate 9 can stir the mixed solution, wherein the rotation of the rotating gear ring 3 can cause the rotating gear 5 to drive the rotating shaft 4 to rotate, and the rotation of the rotating shaft 4 can cause the rotating plate 6 to rotate, which can further mix the mixed solution, and can increase the accuracy of the titration amount. The titration can be stopped just when the brick red color appears in the water, and finally the calculation can be performed. Therefore, the effect of reducing the labor intensity of the staff can be achieved.

[0025] The rotating plate 9 can rotate under the rotation of the rotating shaft 8, and the rotation of the rotating plate 9 can mix the mixed liquid. The rotation of the output shaft of the rotating motor 7 can rotate the rotating shaft 8.

[0026] The mixing port 10 with a trapezoidal structure can change the flow rate of the mixed liquid after the mixed liquid passes through the mixing port 10 , so that the mixed liquid can be mixed more fully.

[0027] Since the connecting block 12 can slide in the inner wall of the connecting groove 11 , the movement of the connecting block 12 can cause the connecting rod 13 to move, and the movement of the connecting rod 13 can cause the cup cover 2 to move.

[0028] The threaded rod 15 can be rotated when the output shaft of the rotary motor 14 rotates. The rotation of the threaded rod 15 can apply force to the connecting block 12, so that the connecting block 12 can slide.

[0029] Embodiment 2

[0030] like Figure 1 , Figure 2 , Figure 4 As shown, the detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method proposed by the utility model, compared with the first embodiment, the cross-section of the cup cover 2 described in this embodiment is a T-shaped structure, the part of the cup cover 2 located in the detection cup body 1 is the smaller end, and the circumference of the cup cover 2 is fixedly connected with a sealing gasket 18, the sealing gasket 18 is made of rubber, the sealing gasket 18 is in contact with the inner wall of the detection cup body 1, a cavity 19 is opened in the sealing gasket 18, the sealing gasket 18 is a double-layer structure, and the bottom outer wall of the detection cup body 1 is fixedly connected with a plurality of evenly distributed support columns 20.

[0031] The top opening of the detection cup body 1 can be sealed by the cup cover 2 with a T-shaped structure.

[0032] The sealing gasket 18 can reduce the gap between the detection cup body 1 and the cup cover 2, and can further make the detection cup body 1 sealed.

[0033] The cavity 19 can increase the contact area between the sealing pad 18 and the detection cup body 1 , so that there is no gap between the detection cup body 1 and the cup cover 2 .

[0034] The support column 20 can support the detection cup body 1 , and can also facilitate the staff to take the detection cup body 1 later.

[0035] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method, comprising a detection cup body (1), the top cover of the detection cup body (1) being connected to a cup cover (2), characterized in that: The bottom of the cup cover (2) is provided with a rotating mechanism, one side of the detection cup body (1) is provided with a connecting mechanism, a rotatable rotating gear ring (3) is provided inside the detection cup body (1), both inner walls of the detection cup body (1) are rotatably connected to a rotating shaft (4) via bearings, a rotating gear (5) is fixedly connected to the surface of the rotating shaft (4), the rotating gear (5) is meshed with the rotating gear ring (3), and a plurality of evenly distributed rotating plates (6) are fixedly connected to the surface of the rotating shaft (4).

2. The detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method according to claim 1, characterized in that: The rotating mechanism comprises a rotating motor (7) fixedly connected to the top of the cup cover (2); the output shaft of the rotating motor (7) is fixedly connected to a rotating shaft (8); both sides of the rotating shaft (8) are fixedly connected to rotating plates (9); and the rotating shaft (8) is fixedly connected to the rotating gear ring (3) via a plurality of fixing rods.

3. The detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method according to claim 2, characterized in that: One end of the rotating plate (9) is provided with a plurality of evenly distributed mixing ports (10), and the inner wall cross section of the mixing ports (10) is in a trapezoidal structure.

4. The detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method according to claim 1, characterized in that: The connection mechanism comprises a connection rod (13) fixedly connected to one side of the cup cover (2), the connection rod (13) being in an L-shaped structure, a connection groove (11) being provided on an outer wall of one side of the detection cup body (1), a connection block (12) being slidably connected to the inner wall of the connection groove (11), and the connection block (12) being fixedly connected to the connection rod (13).

5. The detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method according to claim 2, characterized in that: A rotating motor (14) is fixedly connected to an outer wall of one side of the detection cup body (1), a threaded rod (15) is fixedly connected to an output shaft of the rotating motor (14), and the threaded rod (15) is connected to the connecting block (12) via a threaded connection.

6. The detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method according to claim 1, characterized in that: The cross section of the cup cover (2) is in a T-shaped structure, and the portion of the cup cover (2) located inside the detection cup body (1) is the smaller end.

7. The detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method according to claim 6, characterized in that: A sealing gasket (18) is fixedly connected to the circumference of the cup cover (2); the sealing gasket (18) is made of rubber material, and the sealing gasket (18) is in contact with the inner wall of the detection cup body (1).

8. The detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method according to claim 7, characterized in that: A cavity (19) is provided in the sealing gasket (18), and the sealing gasket (18) is a double-layer structure.

9. The detection instrument for detecting chloride in drinking water based on the silver nitrate volumetric method according to claim 6, characterized in that: A plurality of evenly distributed support columns (20) are fixedly connected to the outer wall of the bottom of the detection cup body (1).

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