CN117886421A - Sewage treatment method for PCB production and PH detection device thereof - Google Patents

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment method for PCB circuit board production and a pH detection device thereof, which comprises a detection mechanism, a supporting component, a treatment tank, a rotating platform arranged on the treatment tank, a mounting opening arranged on the rotating platform, an inner groove arranged on the mounting opening, a cover plate arranged in the mounting opening, and a block arranged on the cover plate; a detection component, comprising a bearing assembly arranged on the rotating platform, a lifting assembly arranged on the bearing assembly, and a cleaning assembly arranged on the lifting assembly; a position-changing component, comprising a guide assembly arranged on the bearing assembly, a reset assembly arranged on the guide assembly, and a limit assembly arranged on the reset guide. The device of the invention can simultaneously perform pH detection at multiple locations, and can perform pH detection at different locations, thereby improving pH detection efficiency.

Description

A wastewater treatment method for PCB circuit board production and a PH detection device thereof

Technical Field

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment method for PCB circuit board production and a pH detection device thereof.

Background technique

When treating PCB circuit board wastewater, multiple processes such as filtration, pH adjustment, purification and sedimentation are required. When adjusting the pH, the pH needs to be tested first, and then the acidic or alkaline agent needs to be added based on the pH test results.

During use, the existing pH detection method is generally carried out using a pH detector. Although this method is flexible and convenient in detection, due to the randomness of an experiment, workers have to measure multiple times, and the detector probe needs to be wiped or cleaned after each measurement, which makes the overall detection efficiency low. At this time, the treatment pool is still waiting for the test results to proceed to the next step, which indirectly affects the sewage treatment efficiency.

Summary of the invention

In view of the problem in the above-mentioned prior art that workers have to measure multiple times and the detector probe needs to be wiped or cleaned after each measurement, which makes the overall detection efficiency low and indirectly affects the sewage treatment efficiency, the present invention is proposed.

Therefore, the object of the present invention is to provide a wastewater treatment method for PCB circuit board production and a pH detection device thereof.

To solve the above technical problems, the present invention provides the following technical solutions: including allowing sewage to enter a treatment pool; starting a detection mechanism to detect the pH of the sewage; adjusting the pH according to the detection results of the detection mechanism; and discharging the sewage with adjusted pH to the next treatment process.

As a preferred solution of the method for treating wastewater for PCB circuit board production of the present invention, the detection result includes that the wastewater is acidic or alkaline.

As a preferred embodiment of the method for treating wastewater for PCB circuit board production of the present invention, the pH adjustment includes adding an acidic agent or an alkaline agent into the treatment pool.

A pH detection device includes a detection mechanism, a supporting component, a treatment tank, a rotating platform arranged on the treatment tank, a mounting port arranged on the rotating platform, an inner groove arranged on the mounting port, a cover plate arranged in the mounting port, and a block arranged on the cover plate; a detection component includes a bearing assembly arranged on the rotating platform, a lifting assembly arranged on the bearing assembly, and a cleaning assembly arranged on the lifting assembly; a displacement component includes a guide assembly arranged on the bearing assembly, a reset assembly arranged on the guide assembly, and a limit assembly arranged on the reset guide.

As a preferred solution of the PH detection device of the present invention, the bearing assembly includes a mounting box arranged on a rotating platform, and extension plates are fixedly connected to the left and right inner walls of the mounting box, and the extension plates are fixedly connected to the rotating platform by bolts.

As a preferred solution of the PH detection device of the present invention, the lifting assembly includes a horizontal plate fixedly connected to the extension plate, two electric telescopic rods are fixedly connected to the horizontal plate, the telescopic ends of the electric telescopic rods are fixedly connected to the lifting plate, a plurality of PH detectors are fixedly connected to the lifting plate, and the installation box is provided with a plurality of through-holes cooperating with the PH detectors.

As a preferred solution of the pH detection device of the present invention, the cleaning component includes a water guide ring fixedly connected to the through-hole, and a plurality of nozzles are arranged on the water guide ring.

As a preferred solution of the PH detection device of the present invention, wherein: the guide assembly includes a guide rod fixedly connected to the horizontal plate, the mounting box is provided with a first vertical groove, the first vertical groove is provided with a first arc groove, the first arc groove is provided with a second vertical groove, the lifting plate is fixedly connected with a wing plate, the wing plate is fixedly connected with a first spring, and the first spring is against the inner wall of the mounting box.

As a preferred solution of the PH detection device of the present invention, the reset assembly includes a second arc-shaped groove arranged on the second vertical groove, the side walls of the first vertical groove and the second vertical groove are provided with mounting grooves, the two mounting grooves are rotatably connected with a rotating shaft, the rotating shaft is fixedly connected with a baffle, the rotating shaft is provided with a torsion spring, and the side wall of the first vertical groove is provided with an extension groove that cooperates with the baffle.

As a preferred solution of the PH detection device of the present invention, wherein: the limit assembly includes a U-shaped groove arranged in the extension groove, a U-shaped plate is slidably connected in the U-shaped groove, a cutout is provided on the U-shaped plate, a guide rod is fixedly connected to the U-shaped plate, a first guide groove is provided on the guide rod, a second guide groove is provided on the first guide groove, a third guide groove is provided on the second guide groove, a fourth guide groove is provided on the third guide groove, a fifth guide groove is provided on the fourth guide groove, a concave point is provided at the connection between the third guide groove and the fourth guide groove, the slope of the third guide groove is greater than the slope of the fourth guide groove, and the U-shaped plate is elastically connected to the U-shaped groove through a second spring.

The beneficial effects of the present invention are as follows: by arranging the detection component, multiple pH detectors can be brought into contact with water at the same time when the electric telescopic rod is extended, so that multiple samples can be collected at one time, which greatly improves the detection speed. At the same time, the nozzle can be automatically cleaned, which is easy to use. By arranging the replacement component, the position of the pH detector can be replaced, so that the detection range is wider, the data is more representative, and the detection result is more accurate, thereby solving the problem that workers need to measure multiple times and wipe or clean the detector probe after each measurement, which makes the overall detection efficiency low and indirectly affects the sewage treatment efficiency. The sewage pH detection is quickly carried out and the detection result is more accurate.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG. 1 is an overall schematic diagram of a pH detection device.

FIG. 2 is an exploded view of the supporting components of the pH detection device.

FIG. 3 is a schematic cross-sectional view of a detection component of a pH detection device.

FIG. 4 is a schematic diagram of the external structure of the water guide ring of the pH detection device.

FIG. 5 is an exploded view of the transposition components of the PH detection device.

FIG. 6 is a front view of a guide assembly of a pH detection device.

FIG. 7 is an exploded view of the limit assembly of the pH detection device.

FIG. 8 is an enlarged schematic diagram of the structure at point A in FIG. 7 .

FIG. 9 is a schematic diagram of the external structure of the reset component of the pH detection device.

In the figure: 100, supporting component; 101, treatment tank; 102, rotating platform; 103, installation port; 104, inner groove; 105, cover plate; 106, block; 200, detection component; 201, bearing component; 201a, installation box; 201b, extension plate; 201c, bolt; 202, lifting component; 202a, horizontal plate; 202b, electric telescopic rod; 202c, lifting plate; 202d, pH detector; 202e, through-hole; 203, cleaning component; 203a, water guide ring; 203b, nozzle; 300, transposition component; 301, guide component; 301a, guide rod; 301b , first vertical groove; 301c, first arc groove; 301d, second vertical groove; 301e, wing plate; 301f, first spring; 302, reset assembly; 302a, second arc groove; 302b, mounting groove; 302c, rotating shaft; 302d, baffle; 302e, torsion spring; 302f, extension groove; 303, limit assembly; 303a, U-shaped groove; 303b, U-shaped plate; 303c, cutout; 303d, guide rod; 303e, first guide groove; 303f, second guide groove; 303g, third guide groove; 303h, fourth guide groove; 303i, fifth guide groove; 303j, second spring.

Detailed ways

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

Secondly, the term "one 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 term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

Example 1

This is the first embodiment of the present invention, which provides a method for treating wastewater for PCB circuit board production, including allowing the wastewater to enter a treatment tank 101; starting a detection mechanism M to detect the pH of the wastewater; adjusting the pH according to the detection result of the detection mechanism M; discharging the wastewater after the pH adjustment to the next treatment process; the detection result includes that the wastewater is acidic or alkaline; the pH adjustment includes adding an acidic agent or an alkaline agent to the treatment tank 101.

Example 2

1 to 4, a second embodiment of the present invention is shown. Different from the previous embodiment, this embodiment provides a PH detection device, which solves the problem of how to automatically perform detection and detect multiple locations at one time. The device includes a detection mechanism M, including a support component 100, including a treatment tank 101, a rotating platform 102 arranged on the treatment tank 101, a mounting port 103 arranged on the rotating platform 102, an inner groove 104 arranged on the mounting port 103, a cover plate 105 arranged in the mounting port 103, and a block 106 arranged on the cover plate 105; a detection component 200, including a bearing assembly 201 arranged on the rotating platform 102, a lifting assembly 202 arranged on the bearing assembly 201, and a cleaning assembly 203 arranged on the lifting assembly 202; a displacement component 300, including a guide assembly 301 arranged on the bearing assembly 201, a reset assembly 302 arranged on the guide assembly 301, and a limit assembly 303 arranged on the reset guide.

Specifically, the cover 105 here can also be fixed by screws, and a sealing ring is provided on the inner side of the cover 105 here to waterproof the electric telescopic rod 202b. The cover 105 can be opened to facilitate the maintenance of the lamp of the electric telescopic rod 202b. The rotating platform 102 here can rotate, and the rotating platform 102 spans the treatment pool 101, and a guardrail is provided on the rotating platform 102, so that workers can walk onto the rotating platform 102, put medicine into the treatment pool 101 or perform other operations.

Furthermore, the bearing assembly 201 includes an installation box 201a arranged on the rotating platform 102, and the left and right inner walls of the installation box 201a are fixedly connected to extension plates 201b, and the extension plates 201b are fixedly connected to the rotating platform 102 by bolts 201c; the lifting assembly 202 includes a horizontal plate 202a fixedly connected to the extension plate 201b, and two electric telescopic rods 202b are fixedly connected to the horizontal plate 202a, and the telescopic ends of the electric telescopic rods 202b are fixedly connected to the lifting plate 202c, and a plurality of PH detectors 202d are fixedly connected to the lifting plate 202c, and the installation box 201a is provided with a plurality of through-holes 202e cooperating with the PH detectors 202d; the cleaning assembly 203 includes a water guide ring 203a fixedly connected to the through-hole 202e, and a plurality of nozzles 203b are provided on the water guide ring 203a.

It should be noted that the upper end surface of the extension plate 201b here abuts against the lower end surface of the rotating platform 102 and is fixed by bolts 201c, so that it is convenient to open the cover plate 105 to disassemble the installation box 201a for maintenance of the pH detector 202d. The nozzle 203b here can be set to swing, or a micro motor can be added to the lifting plate 202c to allow the pH detector 202d to rotate, so that the nozzle 203b can clean the side wall of the probe on the pH detector 202d to prevent the liquid detected last time from affecting the next detection. It should be noted that the pH detector 202d here can be powered by a battery, so that the wire will not be entangled. If it is powered by wire, the micro motor and the rotating platform 10 2 can rotate at an angle of plus or minus 180°, which can also prevent the entanglement of the wires. At the same time, a heater can be set in the installation box 201a here, so that the probe on the PH detector 202d (the PH detector 202d here inserts the probe into the water to detect the PH, the same below) can be quickly dried to avoid water remaining on the probe of the PH detector 202d and affecting the next detection. At the same time, the PH detector 202d here can be remotely controlled by wireless, and the data can be transmitted to the data center for storage. This is the existing technology and will not be repeated here. At the same time, the water guide ring 203a here is externally connected to a water pipe to supply water to the water guide ring 203a. It needs to be set here according to the actual installation, and there is no limitation here. This is the existing technology and will not be repeated here.

When in use, when conducting a pH test, it is only necessary to extend the electric telescopic rod 202b to move the lifting plate 202c downward, so that the pH detector 202d moves downward, so that the probe of the pH detector 202d passes through the through-hole 202e, so that the probe enters the water, and conducts a pH test. Here, a plurality of pH detectors 202d are fixedly connected to the lifting plate 202c, and a plurality of data can be collected by descending only once. After the test is completed, the electric telescopic rod 202b contracts, so that the lifting plate 202c moves upward. In this process, a plurality of nozzles 203b spray water to flush the probe on the pH detector 202d, and wash off the liquid on its side wall, so as to prevent the liquid on the pH detector 202d from affecting the next pH test.

In summary, when conducting pH testing, multiple pH detectors 202d can be sent into the water by simply extending the electric telescopic rod 202b, thereby realizing pH testing at multiple locations. There is no need for workers to collect data one by one, which greatly increases the pH testing efficiency and indirectly improves the sewage testing efficiency.

Example 3

5 to 9, a third embodiment of the present invention is shown. Different from the previous embodiment, this embodiment provides a transposition component 300 of a PH detection device, which solves the problem of how to change the detection position so as to make the detection more comprehensive. The guide assembly 301 includes a guide rod 301a fixedly connected to the horizontal plate 202a, a first vertical groove 301b is provided on the mounting box 201a, a first arc groove 301c is provided on the first vertical groove 301b, and a second vertical groove 301d is provided on the first arc groove 301c. The lifting plate 202c is fixedly connected with a wing plate 301e, and the wing plate 301e is fixedly connected with a first spring 301f, and the first spring 301f abuts against the inner wall of the installation box 201a; the reset component 302 includes a second arc groove 302a arranged on the second vertical groove 301d, and the side walls of the first vertical groove 301b and the second vertical groove 301d are both provided with a mounting groove 302b, and the two mounting grooves 302b are rotatably connected with a rotating shaft 302c, and the rotating shaft 302c is fixedly connected with a baffle 302d, and the rotating shaft The first vertical slot 301b is provided with a torsion spring 302e, and the side wall of the first vertical slot 301b is provided with an extension slot 302f that cooperates with the baffle 302d; the limiting assembly 303 includes a U-shaped slot 303a arranged in the extension slot 302f, a U-shaped plate 303b is slidably connected in the U-shaped slot 303a, a cutout 303c is provided on the U-shaped plate 303b, a guide rod 303d is fixedly connected to the U-shaped plate 303b, the guide rod 303d is provided with a first guide slot 303e, and the first guide slot 303e is provided with a second Guide groove 303f, a third guide groove 303g is provided on the second guide groove 303f, a fourth guide groove 303h is provided on the third guide groove 303g, a fifth guide groove 303i is provided on the fourth guide groove 303h, a concave point is provided at the connection between the third guide groove 303g and the fourth guide groove 303h, the slope of the third guide groove 303g is greater than the slope of the fourth guide groove, the U-shaped plate 303b is elastically connected to the U-shaped groove 303a through a second spring 303j, and the spring here is connected to a power supply through a wire.

Specifically, the highest point of the first arc groove 301c here is flush with the highest point of the first vertical groove 301b, and the lowest point of the second vertical groove 301d is flush with the lowest point of the first vertical groove 301b. The wing plate 301e here is not fixed to the inner wall of the installation box 201a, so that when the lifting plate 202c moves, the first spring 301f will not be stuck with the inner wall of the installation box 201a. The second arc groove 302a here is connected with the first arc groove 301c, and the second arc groove 302a is spaced from the bottom of the first vertical groove 301b and the second vertical groove 301d. The baffle 302d here is tilted, and the first guide groove 303e here is connected with the fifth guide groove 303i, and the second guide groove 303f plays a turning role. The slope of the third guide groove 303g is greater than the slope of the fourth guide groove 303h, so that the guide rod 303d is easier to reset from the fourth guide groove 303h.

When in use, in the initial position, the guide rod 301a cooperates with the first vertical slot 301b, and the U-shaped plate 303b does not abut against the baffle 302d. When the pH detector 202d moves downward, it can push the baffle 302d in the first vertical slot 301b to move, so that the rotating shaft 302c rotates, and the torsion spring 302e obtains elasticity. When the guide rod 301a moves to the lower end of the first vertical slot 301b, it can cooperate with the cutout 303c to push the U-shaped plate 303b to move rightward. When the U-shaped plate 303b moves to the right, the guide rod 303d is moved by the first vertical slot 301b. The first guide groove 303e moves into the second guide groove 303f, and then moves to the concave point where the third guide groove and the fourth guide groove are connected. At this time, the guide rod 303d is stuck in the concave point and will not reset. When the lifting plate 202c rises and drives the guide rod 301a to rise, the guide rod 301a pushes the U-shaped plate 303b to continue to move to the right. At this time, since the slope of the third guide groove 303g is greater than the slope of the fourth guide groove, the guide rod 303d moves along the fourth guide groove 303h to the fifth guide groove 303i. When the guide rod 301a moves to the U-shaped plate 303 b, under the action of the second spring 303j, the U-shaped plate 303b is reset, so that the upper end of the U-shaped plate 303b extends to the upper side of the baffle 302d of the first vertical groove 301b, preventing the baffle 302d from flipping upward. At this time, due to the obstruction of the baffle 302d, the guide rod 301a can only enter the first arc-shaped groove 301c when it moves upward, so that the lifting plate 202c moves to the left, so that the multiple pH detectors 202d move to the left. The angle of the arc plate here can be adjusted, thereby adjusting the distance that the lifting plate 202c moves to the left. When the lifting plate 202c moves to the left, the first spring 301f is compressed to reset the lifting plate 202c. The connection between the first arc groove 301c and the second vertical groove 301d is slightly inclined, thereby ensuring that the guide rod 301a enters the second vertical groove 301d. When multiple pH detectors 202d move to the left, the electric telescopic rod 202b extends to detect the pH of water areas at different locations. When the lifting plate 202c moves downward, the guide rod 301a slides in the second vertical groove 301d to ensure that the pH detector 202d moves downward.

Here, the upper end surface of the baffle plate 302d in the second vertical groove 301d abuts against the inner wall of the second vertical groove 301d, so that the baffle plate 302d in the second vertical groove cannot rotate clockwise (when viewed from the direction of the installation box 201a, the same below). Therefore, when the lifting plate 202c is reset, due to the obstruction of the baffle plate 302d in the second vertical groove 301d, the guide rod 301a first resets to the first vertical groove 301b along the second arc groove 302a, so that the multiple pH detectors 202d return to the origin. As the lifting plate 202c continues to move upward and reset, it can push the U-shaped plate 303b to move to the right. Similarly, the guide rod 303d moves to the concave point. At this time, the upper end of the baffle plate 302d in the first vertical groove 301b lacks The limit allows the baffle 302d in the first vertical slot 301b to deflect counterclockwise (the torsion spring 302e can reset the baffle 302d when the guide rod 301a moves to the upper side of the baffle 302d), and will not block the guide rod 301a from resetting to the upper end of the first vertical slot 301b. At this time, the second spring 303j is energized and contracted. The energization and contraction of the spring is a prior art and is not elaborated here. The energization and contraction of the second spring 303j will drive the U-shaped plate 303b to move to the right, and then the second spring 303j is powered off. Similarly, the guide rod 303d is reset from the fifth guide slot 303i, so that the U-shaped plate 303b is re-stuck on the upper side of the baffle 302d of the first vertical slot 301b, so that it can continue to be replaced during the next detection.

In summary, after a test is performed, when the pH detector 202d is reset, the position of the pH detector 202d can be automatically changed to perform pH tests in different water areas, making the test more comprehensive and the test results more accurate.

Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims (10)

1. A sewage treatment method for PCB production is characterized in that: comprising the steps of (a) a step of,

allowing sewage to enter a treatment tank (101);

starting a detection mechanism (M) to detect the PH of the sewage;

PH adjustment is carried out according to the detection result of the detection mechanism (M);

and discharging the sewage after PH adjustment to the next treatment flow.

2. The wastewater treatment method for producing the PCB as claimed in claim 1, wherein: the result of the detection includes that the sewage is acidic or the sewage is alkaline.

3. The wastewater treatment method for producing the PCB as claimed in claim 2, wherein: the pH adjustment includes adding an acidic agent or a basic agent to the treatment tank (101).

4. A PH detection device, characterized in that: comprises a detection mechanism (M) of any one of 1 to 3, comprising,

a support member (100) including a treatment tank (101), a rotary table (102) provided on the treatment tank (101), a mounting port (103) provided on the rotary table (102), an inner groove (104) provided on the mounting port (103), a cover plate (105) provided in the mounting port (103), and a block (106) provided on the cover plate (105);

a detection component (200) comprising a bearing component (201) arranged on the rotary platform (102), a lifting component (202) arranged on the bearing component (201), and a cleaning component (203) arranged on the lifting component (202);

the transposition component (300) comprises a guide assembly (301) arranged on the bearing assembly (201), a reset assembly (302) arranged on the guide assembly (301) and a limit assembly (303) arranged on the reset guide.

5. The PH detection apparatus as claimed in claim 4, wherein: the bearing assembly (201) comprises a mounting box (201 a) arranged on the rotary platform (102), an extension plate (201 b) is fixedly connected to the left inner wall and the right inner wall of the mounting box (201 a), and the extension plate (201 b) is fixedly connected with the rotary platform (102) through a bolt (201 c).

6. The PH detection apparatus as claimed in claim 5, wherein: lifting assembly (202) are including diaphragm (202 a) of fixed connection on extension board (201 b), two electric telescopic handle (202 b) of fixedly connected with on diaphragm (202 a), flexible end fixedly connected with lifter plate (202 c) of electric telescopic handle (202 b), fixedly connected with a plurality of PH detectors (202 d) on lifter plate (202 c), be equipped with a plurality of through-mouths (202 e) with PH detectors (202 d) complex on installation box (201 a).

7. The PH detection apparatus as claimed in claim 6, wherein: the cleaning assembly (203) comprises a water guide ring (203 a) fixedly connected to the through hole (202 e), and a plurality of spray heads (203 b) are arranged on the water guide ring (203 a).

8. The PH detecting apparatus according to claim 6 or 7, wherein: the guide assembly (301) comprises a guide rod (301 a) fixedly connected to the transverse plate (202 a), a first vertical groove (301 b) is formed in the mounting box (201 a), a first arc-shaped groove (301 c) is formed in the first vertical groove (301 b), a second vertical groove (301 d) is formed in the first arc-shaped groove (301 c), a wing plate (301 e) is fixedly connected to the lifting plate (202 c), a first spring (301 f) is fixedly connected to the wing plate (301 e), and the first spring (301 f) abuts against the inner wall of the mounting box (201 a).

9. The PH detection apparatus as claimed in claim 8, wherein: reset subassembly (302) including setting up second arc wall (302 a) on second erects groove (301 d), all be equipped with mounting groove (302 b) on the lateral wall in first erects groove (301 b) and second erects groove (301 d), two all rotate in mounting groove (302 b) and be connected with pivot (302 c), pivot (302 c) fixedly connected with baffle (302 d), be equipped with torsion spring (302 e) on pivot (302 c), be equipped with on the lateral wall of first erects groove (301 b) with baffle (302 d) complex extension groove (302 f).

10. The PH detection apparatus as claimed in claim 9, wherein: the limiting component (303) comprises a U-shaped groove (303 a) arranged in an extension groove (302 f), a U-shaped plate (303 b) is connected in the U-shaped groove (303 a) in a sliding mode, a notch (303 c) is formed in the U-shaped plate (303 b), a guide rod (303 d) is fixedly connected to the U-shaped plate (303 b), a first guide groove (303 e) is formed in the guide rod (303 d), a second guide groove (303 f) is formed in the first guide groove (303 e), a third guide groove (303 g) is formed in the second guide groove (303 f), a fourth guide groove (303 h) is formed in the third guide groove (303 g), a fifth guide groove (303 i) is formed in the fourth guide groove (303 h), a concave point is formed in a joint of the third guide groove (303 g) and the fourth guide groove (303 h), and the slope of the third guide groove (303 g) is larger than that of the fourth guide groove is formed in the first guide groove (303 e), and the third guide groove (303 b) is connected with the U-shaped plate (303 a) through a second spring groove (j).