A concentration detection device for cleaning agents

Abstract

The present invention discloses a concentration detection device for cleaning agents, which relates to the technical field of liquid concentration detection. It solves the problem that after the cleaning agent on the surface of the detection head is spun dry, there is still cleaning agent component attached to the surface of the detection head, resulting in incomplete cleaning of the detection head. The device includes a detection table, a mounting plate installed on the upper side of the detection table. Two symmetrically distributed probes are fixedly installed at the lower end of the mounting plate. A battery is fixedly installed inside the mounting plate, and the probes are electrically connected to the battery. A cleaning cylinder is fixedly embedded in the upper end of the detection table. By installing a driving mechanism and a cleaning cylinder, the present invention is beneficial to the process of one probe detecting the concentration of the cleaning agent while the other probe enters the inner wall of the cleaning cylinder for cleaning. The two probes alternately detect and clean, which can effectively avoid the influence of the cleaning agent component attached to the outside of the probe on the detection data.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid concentration detection, and specifically to a concentration detection device for cleaning agents. Background Art

[0002] A cleaning agent is a product specially formulated for cleaning through a cleaning process. Its main components usually consist of surfactants, builders, and additives, etc. There are many types of cleaning agents, which can be divided into heavy-duty cleaning agents and light-duty cleaning agents according to the type of dirt removed. During the production and processing of cleaning agents, it is necessary to detect their concentration to determine whether the quality of the cleaning agent meets the standard.

[0003] For the cleaning agent concentration detection devices on the market, in order to avoid the influence of the cleaning agent adhered during the previous detection process on the next detection result during continuous detection, a toggling member and an energy storage oscillation member are provided. After the sampling detection head completes the detection of the cleaning agent, the instantaneous impact force during movement can be used to spin-dry the cleaning agent adhered to the sampling detection head, so as to reduce the cleaning agent adhered to the sampling detection head. However, during the use of this device, since the cleaning agent contains chemical components, and the cleaning agent on the detection head is removed by physical means, it is impossible to decompose the chemical components of the cleaning agent on the surface of the detection head. After the cleaning agent on the surface of the detection head is spin-dried, there are still cleaning agent components attached to the surface of the detection head, resulting in incomplete cleaning of the detection head, thus affecting the subsequent detection of other cleaning agent samples, and there are defects in the use process. Summary of the Invention

[0004] The purpose of the present invention is to provide a concentration detection device for cleaning agents to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A concentration detection device for cleaning agents includes a detection table, a mounting plate installed on the upper side of the detection table, two symmetrically distributed probes fixedly installed at the lower end of the mounting plate, a battery fixedly installed inside the mounting plate, and the probes are electrically connected to the battery. A cleaning cylinder is fixedly embedded in the upper end of the detection table; a driving mechanism for driving the probes to lift and rotate, the driving mechanism is installed on the upper side of the mounting plate through a support frame, and the support frame is fixedly installed on the upper end of the detection table; a blowing mechanism for blowing air into the cleaning cylinder to cause the liquid inside to bubble, the blowing mechanism is installed inside the detection table; a positioning component for enhancing the stability of the probes during the detection process, the positioning component is installed inside the driving mechanism.

[0007] Preferably, the driving mechanism includes a cylinder fixedly installed at the upper end of the support frame. The lower end of the telescopic rod of the cylinder is rotatably connected to a connecting shaft through a bearing, and the connecting shaft is fixedly installed at the center of the upper end of the mounting disc. A sleeve is movably sleeved on the outer side of the connecting shaft near its upper end. The inner diameter of the sleeve is equal to the outer diameter of the connecting shaft. A pin rod is movably embedded on the inner wall of the sleeve. One end of the pin rod away from the connecting shaft is fixedly connected to a gasket, and one side of the gasket away from the pin rod is movably abutted against a first spring.

[0008] Preferably, a second spring is fixedly installed at the lower end of the sleeve, and the second spring is movably sleeved on the outer side of the connecting shaft. The lower end of the second spring is fixedly connected to a washer. A positioning ring is fixedly sleeved on the outer side of the connecting shaft, and the washer is movably sleeved on the outer side of the positioning ring. The positioning ring can prevent the washer from moving up and down on the outer side of the connecting shaft. Limiting straight grooves and threaded grooves are respectively formed on the outer side of the connecting shaft corresponding to the pin rod. The number of the limiting straight grooves and the threaded grooves is two groups, and they are circumferentially equidistantly distributed.

[0009] Preferably, the limiting straight groove and the threaded groove are communicated with each other. The length of the limiting straight groove exceeds the connection part between it and the threaded groove. A limiting embedding groove is also formed at the upper connection part of the outer side of the connecting shaft corresponding to the limiting straight groove and the threaded groove. The limiting embedding groove can limit the movement direction of the pin rod. The lower end of the limiting embedding groove is communicated with the threaded groove. The pin rod is in sliding contact with the connecting shaft through the limiting straight groove, the threaded groove and the limiting embedding groove.

[0010] Preferably, a plurality of convex teeth are fixedly arranged at the upper end of the sleeve and are circumferentially equidistantly distributed. An annular seat is fixedly embedded at the lower end of the support frame corresponding to the outer side of the cylinder. A rubber ring is fixedly embedded at the lower end of the annular seat, and the connection mode between the convex teeth and the rubber ring is movable abutment. After the convex teeth abut against the rubber ring, the rotation of the sleeve can be restricted.

[0011] Preferably, the positioning assembly includes a plurality of pin beads movably embedded in the connecting shaft and circumferentially equidistantly distributed. A V-shaped elastic sheet is fixedly installed on the outer side of the pin bead, and the V-shaped elastic sheet is located inside the connecting shaft. One end of the V-shaped elastic sheet away from the pin bead is fixedly connected to the connecting shaft. A hemispherical embedding groove with the same number as the pin bead is formed on the outer side of the cylinder. The V-shaped elastic sheet can drive the pin bead to be embedded into the hemispherical embedding groove, and the pin bead is movably clamped with the cylinder through the hemispherical embedding groove.

[0012] Preferably, the air blowing mechanism includes two symmetrically distributed sleeves installed outside the cleaning cylinder, and the sleeves are fixedly embedded inside the detection table. A piston capable of moving up and down is movably embedded inside the sleeve. The lower end of the piston is movably abutted against a third spring, and one end of the third spring away from the piston is movably abutted against the sleeve. The third spring can drive the piston to move upward inside the sleeve.

[0013] Preferably, a pressure rod is fixedly embedded at the center of the upper end of the piston, and the connection between the pressure rod and the mounting disc is a movable abutment. A exhaust pipe communicating with the sleeve is fixedly installed at the lower end of the sleeve, and one end of the exhaust pipe away from the sleeve is fixedly connected to the cleaning cylinder. An air inlet pipe communicating with the sleeve is fixedly installed outside the sleeve, and one-way valves are installed on both the exhaust pipe and the air inlet pipe. The one-way valves can control the gas flow direction inside the air inlet pipe and the exhaust pipe.

[0014] Preferably, a socket is fixedly installed at the center of the lower end of the mounting disc, and the connection between the socket and the battery is an electrical connection. A plug is movably inserted inside the socket. The lower end of the plug is fixedly connected to a connecting seat, and the connection between the connecting seat and the socket is a rotational connection. The plug can rotate inside the socket.

[0015] Preferably, a spring wire is fixedly embedded at the center of the lower end of the connecting seat. A telescopic tube is movably sleeved outside the spring wire. The telescopic rod can protect the spring wire to prevent the mounting disc from driving the spring wire to twist. The upper end of the telescopic tube is fixedly connected to the connecting seat, and the lower end of the telescopic tube is fixedly embedded inside the detection table.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. By installing a driving mechanism and a cleaning cylinder, when the cylinder in the driving mechanism drives the mounting disc to move up and down, the mounting disc will rotate 180° under the action of the pin rod, the limiting straight groove, the threaded groove and the limiting groove. This is beneficial for one probe to detect the concentration of the cleaning agent while the other probe enters the inner wall of the cleaning cylinder for cleaning during the detection process. The two probes alternately detect and clean, which can effectively avoid the influence of the cleaning agent components attached to the outside of the probe on the detection data.

[0018] 2. By installing an air blowing mechanism, during the process of the probe entering the cleaning cylinder for cleaning, the piston in the air blowing structure moves downward to inject gas into the cleaning cylinder, causing the gas in the inner wall of the cleaning cylinder to bubble and surge. This is beneficial for the cleaning agent attached to the surface of the probe to be quickly and thoroughly dissolved, and the cleaning of the probe is relatively comprehensive.

[0019] 3. In the present invention, by installing a positioning component, during the process of the connecting shaft and the mounting disc rotating and then moving downward, since the pin column in the positioning component is embedded in the hemispherical embedding groove outside the cylinder telescopic rod under the drive of the V-shaped elastic sheet, the connecting shaft and the mounting disc can be positioned, preventing the probe from rotating during the downward movement, thereby effectively enhancing the stability of the probe during the downward movement and facilitating the probe to smoothly enter the cleaning agent and the cleaning cylinder to be detected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic side sectional view of the present invention;

[0022] Figure 3 is a schematic diagram of the present invention with the detection table and the support frame removed;

[0023] Figure 4 is a schematic side sectional view of the cleaning mechanism of the present invention;

[0024] Figure 5 is an enlarged schematic diagram of the connection between the mounting disc and the driving mechanism of the present invention;

[0025] Figure 6 is a schematic side sectional view of the driving mechanism of the present invention;

[0026] Figure 7 is a disassembled schematic diagram of the driving mechanism of the present invention;

[0027] Figure 8 is a disassembled schematic diagram of the plug and the socket of the present invention.

[0028] In the figure: 1, detection table; 2, mounting disc; 3, probe; 4, cylinder; 5, connecting shaft; 6, sleeve; 7, pin rod; 8, gasket; 9, spring one; 10, spring two; 11, washer; 12, positioning ring; 13, limiting straight groove; 14, threaded groove; 15, limiting embedding groove; 16, convex tooth; 17, annular seat; 18, rubber ring; 19, pin bead; 20, V-shaped elastic sheet; 21, hemispherical embedding groove; 22, cleaning cylinder; 23, sleeve; 24, piston; 25, spring three; 26, pressing rod; 27, exhaust pipe; 28, intake pipe; 29, one-way valve; 30, socket; 31, plug; 32, connecting seat; 33, spring wire; 34, telescopic pipe; 35, battery. DETAILED DESCRIPTION OF THE INVENTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1: Please refer to Figure 1 , Figure 2 , Figures 5 - 7 , a concentration detection device for a cleaning agent shown in the figure, including a detection table 1, a mounting plate 2 installed on the upper side of the detection table 1, two symmetrically distributed probes 3 fixedly installed at the lower end of the mounting plate 2, a battery 35 fixedly installed inside the mounting plate 2, and the connection between the probe 3 and the battery 35 is electrically connected. A cleaning cylinder 22 is fixedly embedded at the upper end of the detection table 1; a driving mechanism for driving the probe 3 to lift and rotate, the driving mechanism is installed on the upper side of the mounting plate 2 through a support frame, and the support frame is fixedly installed at the upper end of the detection table 1; a blowing mechanism for blowing air into the cleaning cylinder 22 to make the liquid inside bubble, the blowing mechanism is installed inside the detection table 1; a positioning component for enhancing the stability of the probe 3 during the detection process, the positioning component is installed inside the driving mechanism.

[0031] The driving mechanism includes a cylinder 4 fixedly installed at the upper end of the support frame. The lower end of the telescopic rod of the cylinder 4 is rotatably connected to a connecting shaft 5 through a bearing, and the connecting shaft 5 is fixedly installed at the center of the upper end of the mounting plate 2. A sleeve 6 is movably sleeved on the outer side of the connecting shaft 5 near its upper end. The inner diameter of the sleeve 6 is equal to the outer diameter of the connecting shaft 5. A pin rod 7 is movably embedded on the inner wall of the sleeve 6. One end of the pin rod 7 away from the connecting shaft 5 is fixedly connected to a gasket 8. One side of the gasket 8 away from the pin rod 7 is movably abutted against a first spring 9.

[0032] A second spring 10 is fixedly installed at the lower end of the sleeve 6, and the second spring 10 is movably sleeved on the outer side of the connecting shaft 5. The lower end of the second spring 10 is fixedly connected to a washer 11. A positioning ring 12 is fixedly sleeved on the outer side of the connecting shaft 5, and the washer 11 is movably sleeved on the outer side of the positioning ring 12. The positioning ring 12 can prevent the washer 11 from moving up and down on the outer side of the connecting shaft 5. Limit straight grooves 13 and threaded grooves 14 are respectively opened on the outer side of the connecting shaft 5 corresponding to the pin rod 7. The number of the limit straight grooves 13 and the threaded grooves 14 is two groups, and they are evenly distributed in a circular pattern.

[0033] The limiting straight groove 13 and the threaded groove 14 communicate with each other. The length of the limiting straight groove 13 exceeds its connection with the threaded groove 14. A limiting groove 15 is also provided on the outer side of the connecting shaft 5 corresponding to the upper connection of the limiting straight groove 13 and the threaded groove 14. The limiting groove 15 can limit the movement direction of the pin rod 7. The lower end of the limiting groove 15 communicates with the threaded groove 14. The pin rod 7 is in sliding contact with the connecting shaft 5 through the limiting straight groove 13, the threaded groove 14 and the limiting groove 15.

[0034] A plurality of convex teeth 16 are fixedly arranged at the upper end of the sleeve 6 and are equally distributed in a circumferential manner. A ring seat 17 is fixedly embedded at the lower end of the support frame corresponding to the outer side of the cylinder 4. A rubber ring 18 is fixedly embedded at the lower end of the ring seat 17. The connection mode between the convex teeth 16 and the rubber ring 18 is movable abutment. After the convex teeth 16 abut against the rubber ring 18, the rotation of the sleeve 6 can be restricted.

[0035] Working principle: First, the operator inserts the cleaning agent test tube to be detected on the detection table 1. Then, the cylinder 4 drives the mounting plate 2 and the two probes 3 to move downward. The two probes 3 move downward and are respectively inserted into the cleaning agent test tube and the cleaning cylinder 22. After the cleaning agent concentration detection data is transmitted to the computer, the cylinder 4 drives the two probes 3 to move upward;

[0036] During the upward movement of the sleeve 6 along with the connecting shaft 5, the plurality of convex teeth 16 at the upper end of the sleeve 6 will abut against the rubber ring 18, making the sleeve 6 unable to rotate on the outer side of the connecting shaft 5. Since the pin rod 7 is located inside the limiting groove 15 at this time, under the condition that the lower end of the limiting groove 15 communicates with the threaded groove 14, the pin rod 7 will enter the threaded groove 14 through the limiting groove 15 at this time. During this process, the connecting shaft 5 and the mounting plate 2 will rotate. When the pin rod 7 rotates from inside the threaded groove 14 to the lower end of the limiting straight groove 13, the mounting plate 2 and the two probes 3 rotate 180°;

[0037] Then, when the cylinder 4 drives the two probes 3 to move downward again, the pin rod 7 will move upward inside the limiting straight groove 13. At this time, the connecting shaft 5 and the mounting plate 2 will not rotate. When the pin rod 7 moves into the limiting groove 15 at the upper end of the limiting straight groove 13, the first spring 9 will drive the pin rod 7 to be embedded in the limiting groove 15. Repeating this process is beneficial for the two probes 3 to be alternately cleaned and detected, making the probes 3 always in a clean state before detecting the cleaning agent concentration, avoiding the attachment of cleaning agent components on the outer side of the probes 3, and effectively avoiding the influence of the cleaning agent components attached to the outer side of the probes 3 on the detection data.

[0038] Embodiment 2: Please refer to Figure 6, this embodiment further illustrates Embodiment 1. The positioning component includes a plurality of pin beads 19 that are circumferentially and equidistantly distributed and are movably embedded inside the connecting shaft 5. A V-shaped elastic piece 20 is fixedly installed on the outer side of the pin bead 19, and the V-shaped elastic piece 20 is located inside the connecting shaft 5. One end of the V-shaped elastic piece 20 away from the pin bead 19 is fixedly connected to the connecting shaft 5. A hemispherical embedding groove 21 equal in number to the pin bead 19 is opened on the outer side of the air cylinder 4. The V-shaped elastic piece 20 can drive the pin bead 19 to be embedded in the hemispherical embedding groove 21, and the pin bead 19 is movably clamped with the air cylinder 4 through the hemispherical embedding groove 21.

[0039] In this embodiment: During the process that the sleeve 6 drives the connecting shaft 5 and the mounting plate 2 to rotate through the pin rod 7, the limiting straight groove 13, the threaded groove 14, and the limiting embedding groove 15, under the flexible performance of the V-shaped elastic piece 20, the pin bead 19 will rotate out of the hemispherical embedding groove 21, and then is driven by the elastic performance of the V-shaped elastic piece 20 to be embedded in another hemispherical embedding groove 21, which can position the connecting shaft 5 after rotation, avoid the probe 3 from rotating during the downward movement, thereby effectively enhancing the stability of the probe 3 during the downward movement and facilitating the probe 3 to smoothly enter the cleaning agent to be detected and the cleaning cylinder 22.

[0040] Embodiment 3: Please refer to Figures 2 - 4 , this embodiment further illustrates Embodiment 1. The air blowing mechanism includes two symmetrically distributed sleeves 23 installed on the outer side of the cleaning cylinder 22, and the sleeves 23 are fixedly embedded inside the detection table 1. A piston 24 that can move up and down is movably embedded inside the sleeve 23. The lower end of the piston 24 is movably abutted against a third spring 25, and one end of the third spring 25 away from the piston 24 is movably abutted against the sleeve 23. The third spring 25 can drive the piston 24 to move upward inside the sleeve 23.

[0041] A pressure rod 26 is fixedly embedded at the center of the upper end of the piston 24, and the connection method between the pressure rod 26 and the mounting plate 2 is movable abutment. A exhaust pipe 27 that is communicated with the sleeve 23 is fixedly installed at the lower end of the sleeve 23, and one end of the exhaust pipe 27 away from the sleeve 23 is fixedly connected to the cleaning cylinder 22. An air inlet pipe 28 that is communicated with the sleeve 23 is fixedly installed on the outer side of the sleeve 23, and one-way valves 29 are installed on both the exhaust pipe 27 and the air inlet pipe 28. The one-way valve 29 can control the gas flow direction inside the air inlet pipe 28 and the exhaust pipe 27.

[0042] In this embodiment: During the process that the two probes 3 move downward and are respectively inserted into the cleaning agent to be detected and the cleaning cylinder 22, the mounting plate 2 will abut against the pressure rod 26 and drive the piston 24 to move inside the sleeve 23 through the pressure rod 26. During the downward movement of the piston 24, the gas inside the sleeve 23 is squeezed into the cleaning cylinder 22 through the exhaust pipe 27, so that when the probe 3 is inserted into the cleaning cylinder 22, the clear water in the cleaning cylinder 22 will bubble and surge, which is beneficial to the rapid and thorough dissolution of the cleaning agent attached to the surface of the probe 3, making the cleaning of the probe 3 more comprehensive;

[0043] When the probe 3 finishes detecting the concentration of the cleaning agent, the air cylinder 4 drives the mounting plate 2 and the probe 3 to move upward. During the upward movement of the mounting plate 2, the piston 24 will move back and reset under the driving force of the compressed elastic force of the third spring 25. During the process of the piston 24 moving back and resetting, gas enters the interior of the sleeve 23 through the air inlet pipe 28;

[0044] The clear water inside the cleaning cylinder 22 will be discharged through the drain pipe at regular intervals, and the water inlet pipe will add a fixed amount of clear water into the cleaning cylinder 22 at regular intervals.

[0045] Example 4: Please refer to Figure 8 , this embodiment further illustrates Example 1. A socket 30 is fixedly installed at the center of the lower end of the mounting plate 2, and the connection between the socket 30 and the battery 35 is an electrical connection. A plug 31 is movably inserted into the interior of the socket 30. The lower end of the plug 31 is fixedly connected to a connection seat 32, and the connection between the connection seat 32 and the socket 30 is a rotational connection. The plug 31 can rotate inside the socket 30.

[0046] A spring wire 33 is fixedly embedded at the center of the lower end of the connection seat 32. A telescopic tube 34 is movably sleeved outside the spring wire 33. The telescopic tube 34 can protect the spring wire 33 to prevent the mounting plate 2 from driving the spring wire 33 to twist. Moreover, the upper end of the telescopic tube 34 is fixedly connected to the connection seat 32, and the lower end of the telescopic tube 34 is fixedly embedded in the interior of the detection table 1.

[0047] In this embodiment: During the rotation of the mounting plate 2, it will drive the socket 30 to rotate together. At this time, under the positioning action of the telescopic tube 34, the plug 31 and the connection seat 32 do not rotate together with the mounting plate 2, which can effectively prevent the spring wire 33 from twisting during the rotation of the mounting plate 2, thereby effectively extending the service life of the spring wire 33.

[0048] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concentration detection device for a cleaning agent, comprising a detection table, characterized in that, It further includes: An installation disk installed on the upper side of the detection table. Two symmetrically distributed probes are fixedly installed at the lower end of the installation disk. A battery is fixedly installed inside the installation disk, and the probes are electrically connected to the battery. A cleaning cylinder is fixedly embedded in the upper end of the detection table; A driving mechanism for driving the probe to lift and rotate. The driving mechanism is installed on the upper side of the installation disk through a support frame, and the support frame is fixedly installed on the upper end of the detection table; A blowing mechanism for blowing air into the cleaning cylinder to make the liquid inside it bubble. The blowing mechanism is installed inside the detection table; A positioning component for enhancing the stability during the probe detection process. The positioning component is installed inside the driving mechanism; The driving mechanism includes a cylinder fixedly installed on the upper end of the support frame. The lower end of the cylinder telescopic rod is rotatably connected to a connecting shaft through a bearing, and the connecting shaft is fixedly installed at the center of the upper end of the installation disk. A sleeve is movably sleeved on the outer side of the connecting shaft near its upper end. A pin rod is movably embedded on the inner wall of the sleeve. One end of the pin rod away from the connecting shaft is fixedly connected to a gasket, and a first spring is movably abutted on the side of the gasket away from the pin rod; The blowing mechanism includes two symmetrically distributed sleeves installed on the outer side of the cleaning cylinder, and the sleeves are fixedly embedded in the detection table. A piston that can move up and down is movably embedded in the sleeve. A third spring is movably abutted on the lower end of the piston, and one end of the third spring away from the piston is movably abutted on the sleeve; The positioning component includes a plurality of pin beads that are circumferentially and equidistantly distributed and movably embedded in the connecting shaft. A V-shaped elastic piece is fixedly installed on the outer side of the pin bead, and the V-shaped elastic piece is located inside the connecting shaft. One end of the V-shaped elastic piece away from the pin bead is fixedly connected to the connecting shaft. A hemispherical embedding groove equal in number to the pin beads is opened on the outer side of the cylinder, and the pin bead is movably clamped with the cylinder through the hemispherical embedding groove.

2. The concentration detection device for a cleaning agent according to claim 1, wherein: A second spring is fixedly installed at the lower end of the sleeve, and the second spring is movably sleeved on the outer side of the connecting shaft. The lower end of the second spring is fixedly connected to a washer. A positioning ring is fixedly sleeved on the outer side of the connecting shaft, and the washer is movably sleeved on the outer side of the positioning ring. Two groups of limit straight grooves and threaded grooves are respectively opened on the outer side of the connecting shaft corresponding to the pin rod, and the number of the limit straight grooves and the threaded grooves is two groups and they are circumferentially and equidistantly distributed.

3. The concentration detection device for a cleaning agent according to claim 2, characterized in that: The limit straight groove and the threaded groove are interconnected. The length of the limit straight groove exceeds its connection with the threaded groove. A limit embedding groove is also opened at the upper end connection of the limit straight groove and the threaded groove on the outer side of the connecting shaft. The lower end of the limit embedding groove is communicated with the threaded groove, and the pin rod is in sliding contact with the connecting shaft through the limit straight groove, the threaded groove and the limit embedding groove.

4. The concentration detection device for a cleaning agent according to claim 3, wherein: A plurality of convex teeth that are circumferentially and equidistantly distributed are fixedly arranged at the upper end of the sleeve. An annular seat is fixedly embedded at the lower end of the support frame corresponding to the outer side of the cylinder. A rubber ring is fixedly embedded at the lower end of the annular seat, and the convex teeth are movably abutted against the rubber ring; 5. The concentration detection device for a cleaning agent according to claim 2, characterized in that: A pressure rod is fixedly embedded at the center of the upper end of the piston, and the pressure rod is movably abutted against the installation disk. An exhaust pipe that is communicated with the sleeve is fixedly installed at the lower end of the sleeve, and one end of the exhaust pipe away from the sleeve is fixedly connected to the cleaning cylinder. An air inlet pipe that is communicated with the sleeve is fixedly installed on the outer side of the sleeve, and one-way valves are installed on both the exhaust pipe and the air inlet pipe.

6. The concentration detection device for a cleaning agent according to claim 1, wherein: A socket is fixedly installed at the center of the lower end of the installation disc, and the connection between the socket and the battery is an electrical connection. A plug is movably inserted into the socket. The lower end of the plug is fixedly connected to a connection seat, and the connection between the connection seat and the socket is a rotational connection.

7. The concentration detection device for a cleaning agent according to claim 6, characterized in that: A spring wire is fixedly embedded at the center of the lower end of the connection seat. A telescopic tube is movably sleeved outside the spring wire. The upper end of the telescopic tube is fixedly connected to the connection seat, and the lower end of the telescopic tube is fixedly embedded in the interior of the detection table.

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