A ph meter sampling device

Abstract

The utility model discloses a kind of PH meter sampling devices, including flow guide box, the both sides of flow guide box are fixedly connected with docking pipe, two The side of mutually approaching of docking pipe is blocked with blocking disc, two The side of mutually moving away of docking pipe is fixedly installed with sampling tube. The utility model is through the setting of two groups of sampling tube and docking pipe, can be conducted between the both sides of flow guide box and main pipeline, so that the medium in main pipeline can flow through in flow guide box during conveying, to facilitate the PH of PH meter body to the detection of medium, and when non-detection period, through the operation of servo motor can be rotated through worm and worm wheel, driving shaft and rotating plate, and through push rod place push blocking disc to move, so that blocking disc can be blocked at the both sides of two groups of docking pipe under the action of moving, and effectively avoid the impact caused by the continuous flow of PH meter body to medium.

Description

Technical Field

[0001] This utility model relates to the field of pH detection technology, specifically a pH meter sampling device. Background Technology

[0002] Accurate control of pH is crucial during the operation of demineralized water units. It is a key factor in ensuring stable demineralized water quality and smooth production processes. Currently, pH meters are often directly inserted into the pipes. However, this seemingly convenient installation method has revealed many drawbacks in practical applications. Due to the continuous high-speed flow of the medium inside the pipes, the directly inserted electrode probes inevitably suffer from strong scouring and friction, leading to severe wear. Even more problematic is that the electrode probes are made of glass. Although this material has certain properties, it is very fragile in such harsh working environments and is easily damaged. Once the electrode probes are damaged, not only will the pH measurement data be inaccurate, affecting the accurate judgment of the demineralized water quality, but it may also trigger a series of chain reactions, causing incalculable losses to the entire production system. Utility Model Content

[0003] The purpose of this invention is to provide a pH meter sampling device that can effectively prevent the pH meter from being damaged by the continuous impact of the medium in the pipeline, thereby improving the service life of the pH meter.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pH meter sampling device, comprising a flow guide box, with connecting pipes fixedly connected to both sides of the flow guide box, a sealing disc sealing the side of the two connecting pipes that are close to each other, a sampling tube fixedly installed on the side of the two connecting pipes that are far from each other, a main pipe fixedly installed between the sides of the two sampling tubes that are far from each other, a pH meter body fixedly installed on the top of the flow guide box, a support frame fixedly installed at the middle of the front surface of the flow guide box, a fixing box fixedly installed on the front surface of the support frame, a servo motor fixedly installed on the left side of the outer surface of the fixing box, a worm gear fixedly installed at the output end of the servo motor, a rotating shaft movably connected between the middle end of the support frame and the middle end of the inner cavity of the flow guide box via a bearing, a worm wheel fixedly installed on the front surface of the rotating shaft, the worm wheel meshing with the worm gear, a rotating plate fixedly connected to the middle end of the rotating shaft, push rods hinged to both ends of the rotating plate via pins, and the ends of the push rods hinged to the middle end of the sealing disc via pins.

[0005] As a preferred embodiment, guide rods are fixedly installed at both ends of the connecting pipe, and guide blocks are fixedly installed at both ends of the sealing disc, with the surface of the guide block slidably connected to the surface of the guide rod.

[0006] As a preferred embodiment, a reinforcing rod is fixedly connected between the surface of the rotating plate and the surface of the rotating shaft, and the number of the reinforcing rods is four.

[0007] As a preferred embodiment, a polytetrafluoroethylene (PTFE) sealing gasket is fixedly installed around the perimeter of the sealing disc, and the surface of the PTFE sealing gasket contacts the surface of the connecting pipe.

[0008] As a preferred embodiment, a rubber sealing ring is fixedly installed at the middle of the front surface of the guide box, and the surface of the rubber sealing ring contacts the surface of the rotating shaft.

[0009] As a preferred embodiment, a mounting frame is fixedly connected to the back of the flow guide box, and the back of the mounting frame is fixedly installed at the middle of the main pipeline.

[0010] As a preferred embodiment, flanges are fixedly connected to both sides of the main pipeline, and mounting holes are provided on the surface of the flanges.

[0011] As a preferred embodiment, a transmission line is fixedly installed on the right side of the pH meter body.

[0012] As a preferred embodiment, a PLC controller is fixedly mounted on the front surface of the fixed box, and the output terminal of the PLC controller is electrically connected to the input terminal of the servo motor through a servo driver.

[0013] As a preferred embodiment, the right side of the worm gear is movably connected to the right side of the inner cavity of the fixed box via a bearing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention, through the arrangement of two sets of sampling tubes and connecting pipes, enables communication between the two sides of the flow guide box and the main pipeline. This allows the medium in the main pipeline to flow through the flow guide box during transportation, facilitating the pH meter body to detect the pH of the medium. When not in use for detection, the operation of the servo motor drives the worm gear and worm wheel, drive the rotating shaft and rotating plate to rotate, and pushes the sealing disc to move through the push rod. This movement of the sealing disc seals the two sets of connecting pipes, effectively preventing the pH meter body from being impacted by the continuous flow of the medium, reducing the probability of damage to the pH meter body, and improving the service life of the pH meter body. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a front sectional view of the flow guide box of this utility model;

[0018] Figure 3This is a top view cross-sectional structural diagram of the flow guide box of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the left side of the guide box of this utility model.

[0020] In the diagram: 1. Main pipe; 2. Sampling pipe; 3. Flange; 4. Mounting frame; 5. Flow guide box; 6. Support frame; 7. Fixing box; 8. PLC controller; 9. pH meter body; 10. Transmission line; 11. Rotating plate; 12. Connecting pipe; 13. Sealing plate; 14. PTFE sealing gasket; 15. Guide block; 16. Guide rod; 17. Rotating shaft; 18. Push rod; 19. Rubber sealing ring; 20. Servo motor; 21. Worm gear; 22. Worm wheel; 23. Reinforcing rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] The components of this application, including the main pipe 1, sampling pipe 2, flange 3, mounting frame 4, flow guide box 5, support frame 6, fixing box 7, PLC controller 8, pH meter body 9, transmission line 10, rotating plate 11, connecting pipe 12, sealing plate 13, polytetrafluoroethylene sealing gasket 14, guide block 15, guide rod 16, rotating shaft 17, push rod 18, rubber sealing ring 19, servo motor 20, worm gear 21, worm wheel 22, and reinforcing rod 23, are all general standard parts or parts known to those skilled in the art. Their structure and principle are common knowledge and can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0024] Example 1:

[0025] Please see Figures 1-4As shown, this utility model provides a pH meter sampling device, including a flow guide box 5. Connecting pipes 12 are fixedly connected to both sides of the flow guide box 5. A sealing disc 13 is sealed on the side of the two connecting pipes 12 that are close to each other. A sampling tube 2 is fixedly installed on the side of the two connecting pipes 12 that are far apart from each other. A main pipe 1 is fixedly installed between the two sampling tubes 2 that are far apart from each other. A pH meter body 9 is fixedly installed on the top of the flow guide box 5. A support frame 6 is fixedly installed at the middle of the front surface of the flow guide box 5. A sampling device is fixedly installed on the front surface of the support frame 6. A servo motor 20 is fixedly installed on the left side of the outer surface of the fixed box 7. A worm gear 21 is fixedly installed at the output end of the servo motor 20. A rotating shaft 17 is movably connected between the middle end of the support frame 6 and the middle end of the inner cavity of the guide box 5 through a bearing. A worm wheel 22 is fixedly installed on the front surface of the rotating shaft 17. The worm wheel 22 meshes with the worm gear 21. A rotating plate 11 is fixedly connected to the middle end of the rotating shaft 17. Push rods 18 are hinged to both ends of the rotating plate 11 through pins. The ends of the push rods 18 are hinged to the middle end of the sealing plate 13 through pins.

[0026] In this technical solution, when the pH of the medium transported from left to right inside the main pipeline 1 needs to be detected during use, the servo motor 20 is started to drive the worm gear 21 to rotate. The rotation of the worm gear 21 drives the worm wheel 22, the rotating shaft 17, and the rotating plate 11 to rotate. Under the action of the rotation of the rotating plate 11, the upper and lower sets of sealing discs 13 are moved through the push rod 18. As a result, the sealing discs 13 can detach from the side of the connecting pipe 12, allowing the flow box 5 to be connected to the main pipeline 1 through the connecting pipe 12 and the sampling pipe 2. Under the action of medium transportation, the medium flows from the sampling pipe 2 on the left and the connecting pipe 12 into the flow box 5, and from the right... The sample flows out of the connecting pipe 12 and the sampling pipe 2, while the pH meter body 9 can detect the pH of the medium. After the detection is completed, the servo motor 20 is started to drive the worm gear 21 to rotate in the opposite direction. The rotation of the worm gear 21 drives the worm wheel 22, the rotating shaft 17 and the rotating plate 11 to rotate. While the rotating plate 11 is rotating, it can push the sealing plate 13 to move through the push rod 18 until the sealing plate 13 can seal the connecting pipe 12 during the movement. This effectively avoids the impact caused by the continuous flow of the medium on the pH meter body 9, reduces the probability of damage to the pH meter body 9 and improves the service life of the pH meter body 9.

[0027] Example 2:

[0028] Based on Embodiment 1, this utility model is as follows: Figures 1-4As shown, guide rods 16 are fixedly installed at both ends of the connecting pipe 12, and guide blocks 15 are fixedly installed at both ends of the sealing disc 13. The surfaces of the guide blocks 15 are slidably connected to the surfaces of the guide rods 16. Four reinforcing rods 23 are fixedly connected between the surface of the rotating plate 11 and the surface of the rotating shaft 17. Polytetrafluoroethylene (PTFE) gaskets 14 are fixedly installed around the sealing disc 13, and the surface of the PTFE gaskets 14 contacts the surface of the connecting pipe 12. A rubber sealing ring 19 is fixedly installed at the middle of the front surface of the guide box 5. The surface of ring 19 contacts the surface of rotating shaft 17. A mounting frame 4 is fixedly connected to the back of the flow guide box 5. The back of the mounting frame 4 is fixedly installed at the middle of the main pipe 1. Flanges 3 are fixedly connected to both sides of the main pipe 1. Mounting holes are provided on the surface of the flanges 3. A transmission line 10 is fixedly installed on the right side of the pH meter body 9. A PLC controller 8 is fixedly installed on the front surface of the fixed box 7. The output end of the PLC controller 8 is electrically connected to the input end of the servo motor 20 through a servo driver. The right side of the worm gear 21 is movably connected to the right side of the inner cavity of the fixed box 7 through a bearing.

[0029] In this technical solution, the guide rod 16 and guide block 15 are used to guide the sealing disc 13 and prevent it from tilting during movement. The reinforcing rod 23 effectively improves the connection strength between the rotating plate 11 and the rotating shaft 17. The polytetrafluoroethylene sealing gasket 14 effectively improves the sealing performance between the sealing disc 13 and the connecting pipe 12. The rubber sealing ring 19 effectively improves the sealing performance between the rotating shaft 17 and the flow guide box 5. The mounting frame 4 is used to fix the flow guide box 5 to the main pipeline 1. The flange 3 and mounting holes facilitate the installation of the main pipeline 1. The PLC controller 8 and the external servo driver work together to facilitate precise control of the servo motor 20.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A pH meter sampling device, comprising a flow guide box (5), characterized in that: Both sides of the flow guide box (5) are fixedly connected to connecting pipes (12). A sealing disc (13) is installed on the side of the two connecting pipes (12) that are close to each other. A sampling pipe (2) is fixedly installed on the side of the two connecting pipes (12) that are far apart from each other. A main pipe (1) is fixedly installed between the two sampling pipes (2) that are far apart from each other. A pH meter body (9) is fixedly installed on the top of the flow guide box (5). A support frame (6) is fixedly installed at the middle of the front surface of the flow guide box (5). A fixing box (7) is fixedly installed on the front surface of the support frame (6). The outer surface of the fixing box (7)... A servo motor (20) is fixedly installed on the left side. A worm gear (21) is fixedly installed at the output end of the servo motor (20). A rotating shaft (17) is movably connected between the middle end of the support frame (6) and the middle end of the inner cavity of the guide box (5) through a bearing. A worm wheel (22) is fixedly installed on the front surface of the rotating shaft (17). The worm wheel (22) meshes with the worm gear (21). A rotating plate (11) is fixedly connected to the middle end of the rotating shaft (17). Push rods (18) are hinged to both ends of the rotating plate (11) through pins. The end of the push rod (18) is hinged to the middle end of the sealing plate (13) through a pin.

2. The pH meter sampling device according to claim 1, characterized in that: Guide rods (16) are fixedly installed at both ends of the connecting pipe (12), and guide blocks (15) are fixedly installed at both ends of the sealing disc (13). The surface of the guide block (15) is slidably connected to the surface of the guide rod (16).

3. The pH meter sampling device according to claim 1, characterized in that: A reinforcing rod (23) is fixedly connected between the surface of the rotating plate (11) and the surface of the rotating shaft (17), and there are four reinforcing rods (23).

4. A pH meter sampling device according to claim 1, characterized in that: A polytetrafluoroethylene (PTFE) sealing gasket (14) is fixedly installed around the perimeter of the sealing disc (13), and the surface of the PTFE sealing gasket (14) contacts the surface of the connecting pipe (12).

5. A pH meter sampling device according to claim 1, characterized in that: A rubber sealing ring (19) is fixedly installed at the middle of the front surface of the flow guide box (5), and the surface of the rubber sealing ring (19) contacts the surface of the rotating shaft (17).

6. A pH meter sampling device according to claim 1, characterized in that: The back of the flow guide box (5) is fixedly connected to the mounting frame (4), and the back of the mounting frame (4) is fixedly installed at the middle end of the main pipe (1).

7. A pH meter sampling device according to claim 1, characterized in that: Flanges (3) are fixedly connected to both sides of the main pipe (1), and mounting holes are provided on the surface of the flanges (3).

8. A pH meter sampling device according to claim 1, characterized in that: A transmission line (10) is fixedly installed on the right side of the pH meter body (9).

9. A pH meter sampling device according to claim 1, characterized in that: A PLC controller (8) is fixedly installed on the front surface of the fixed box (7). The output terminal of the PLC controller (8) is electrically connected to the input terminal of the servo motor (20) through a servo driver.

10. A pH meter sampling device according to claim 1, characterized in that: The right side of the worm (21) is movably connected to the right side of the inner cavity of the fixed box (7) via a bearing.

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