Acid-base concentration meter with protection function

Abstract

The invention discloses an acid-base concentration meter with a protection function, a concentration meter body is connected with a probe, the probe is arranged in a protection cover in a penetrating manner, and a plurality of through holes are formed in the side surface of the protection cover; the sealing mechanism can rotate to seal the through hole; one end of the water pump is communicated with the purification liquid box, and the other end of the water pump is communicated with the liquid guide pipe through a guide pipe; the transmission mechanism is rotationally connected to the top end of the protective cover, purification liquid flowing out of the liquid guide pipe can drive the transmission mechanism to rotate, and rotation of the transmission mechanism can drive the sealing mechanism to rotate; when the purification liquid submerges the bottom of the transmission mechanism, the transmission mechanism stops rotating; the driven mechanism is telescopically arranged at the top of the protective cover; a switch of the water pump is a self-locking switch, rotation of the transmission mechanism can continuously compress the driven mechanism, and impact force of resetting of the driven mechanism can extrude the self-locking switch. The acid-base concentration meter with the protection function can automatically complete washing and soaking actions after detection is completed, so that the labor intensity of operators is reduced.

Description

Technical Field

[0001] This invention belongs to the field of acid-base testing technology, specifically, it relates to an acid-base concentration meter with protective functions. Background Technology

[0002] In industrial production, acid-base concentration meters are crucial testing equipment, widely used in the acid-base detection process of various chemical products. Taking the manufacture of cellulosic ethanol as an example, accurate detection of its acid-base level and real-time adjustments based on the test results are important steps to ensure stable product quality. When testing the acidity and alkalinity of intermediate products (solid-liquid mixtures) in the cellulosic ethanol manufacturing process, the complex characteristics of these mixtures can easily cause wear and damage to the probes of acid-base concentration meters. To protect the probes, protective covers are usually added to the concentration meters. However, after completing the test, existing testing equipment requires operators to perform tedious rinsing and cleaning of the probes inside the protective cover, and then remove the protective cover and re-soak the probes for maintenance. This entire process not only consumes a lot of manpower and time, but also carries the risk of probe damage due to improper operation, seriously affecting production efficiency and the lifespan of the testing equipment, which is detrimental to the efficient and stable production of cellulosic ethanol. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide an acid-base concentration meter with protective functions, thereby solving the technical problem mentioned in the background art that requires cleaning the probe and removing it for soaking after the test is completed.

[0004] To achieve the aforementioned objectives, the technical solution adopted by this invention includes: An acid-base concentration meter with protective functions includes a concentration meter body, a probe, a protective cover, a sealing mechanism, a liquid guide tube, a purification liquid tank, a water pump, a transmission mechanism, and a driven mechanism. The concentration meter body is connected to the probe, the probe is inserted into the protective cover, and the protective cover has several through holes on its side; the sealing mechanism is rotatably connected to the protective cover and can close the through holes by rotation. The liquid guide tube is fixed at an angle and passes through the top of the protective cover. One end of the water pump is connected to the purified liquid tank, and the other end is connected to the liquid guide tube through a conduit. The transmission mechanism is rotatably connected to the top of the protective cover. The purified liquid flowing out of the liquid guide tube can drive the transmission mechanism to rotate, and the rotation of the transmission mechanism can drive the sealing mechanism to rotate. When the purified liquid covers the bottom of the transmission mechanism, the transmission mechanism stops rotating. The driven mechanism is elastic and retractably located on the top of the protective cover; the water pump switch is a self-locking switch and is located on the top surface of the protective cover; the rotation of the transmission mechanism can continuously compress the driven mechanism, and the resetting force of the driven mechanism can drive the stopped transmission mechanism to rotate in the opposite direction and squeeze the self-locking switch.

[0005] Furthermore, the transmission mechanism includes a rotating assembly, an inclined fan blade, and a pressing plate; the rotating assembly is rotatably mounted on the top of the protective cover, and the rotation of the rotating assembly can drive the closing mechanism to rotate; the inclined fan blade is circumferentially disposed at one end of the rotating assembly located inside the protective cover, and the purified liquid flowing out of the liquid guide tube can drive the inclined fan blade to rotate; multiple pressing plates are provided and circumferentially disposed at one end of the rotating assembly located on the top surface of the protective cover, and the rotation of the pressing plate can drive the driven mechanism to retract away from the self-locking switch.

[0006] Furthermore, the rotating assembly includes a rotating shaft and a gear; the rotating shaft is rotatably connected to the protective cover and passes through the top surface of the protective cover; the gear is coaxially fixed on the rotating shaft and can drive the enclosed mechanism to rotate.

[0007] Furthermore, the enclosure assembly includes a sealing plate, a rotating plate, and a driving assembly; the rotating plate is rotatably connected to the top surface of the protective cover and connected to the sealing plate, the sealing plate is in contact with the protective cover and can seal the through hole; the driving assembly is connected to the rotating plate, and the rotation of the transmission mechanism can drive the driving assembly to rotate.

[0008] Furthermore, the drive assembly includes an arc-shaped rack and a connecting plate; the arc-shaped rack is connected to the rotating plate through the connecting plate, and the rotation of the transmission assembly can drive the arc-shaped rack to rotate.

[0009] Furthermore, the driven mechanism includes a fixed plate, a return spring, and a push plate; the fixed plate is fixed to the top surface of the protective cover and is connected to the push plate through the return spring, and the rotation of the transmission mechanism can continuously squeeze the push plate.

[0010] Furthermore, a friction pad is also provided inside the rotating plate.

[0011] Furthermore, a baffle is provided, which can limit the compression of the return spring by restricting the push plate.

[0012] Furthermore, a filter screen is also provided on the through hole.

[0013] Compared with the prior art, the advantages of the present invention include: In this application, after the test is completed and the remaining test liquid inside the protective cover is poured out, the self-locking switch is pressed to start the water pump. The purification liquid washes the probe and drives the rotating transmission mechanism to rotate. The rotation of the transmission mechanism continuously drives the sealing component to rotate and seal the through hole. During this process, the protective cover can be tilted to allow the initial cleaning purification liquid to flow out. After it flows out, the protective cover can be placed upright again. As the through hole is sealed, the purification liquid gradually accumulates inside the protective cover and eventually causes the transmission mechanism to stop rotating. The squeezed driven mechanism resets, and the self-locking switch is pressed again to shut off the water pump. Thus, during the manufacturing process of cellulosic ethanol, after the acid and alkali concentration test is completed, the probe can be cleaned and soaked by pressing the water pump switch once, and the water pump can be automatically shut off, thus saving multiple manual operations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of an acid-base concentration meter with protective function according to the present invention; Figure 2 This is a schematic diagram of the protective cover and related structures disposed on the top of the protective cover in this invention; Figure 3 This is a cross-sectional schematic diagram of the protective cover and related structures in this invention; Figure 4 This is a schematic diagram of the transmission mechanism in this invention.

[0016] Figure label: The following components are included: 1. Concentration meter body; 11. Probe; 2. Protective cover; 3. Sealing mechanism; 31. Sealing plate; 32. Rotating plate; 33. Drive assembly; 33. Arc rack; 331. Connecting plate; 332. Liquid guide tube; 4. Purified liquid tank; 5. Water pump; 6. Self-locking switch; 61. Transmission mechanism; 7. Rotating assembly; 71. Rotating shaft; 711. Gear; 712. Inclined fan blade; 72. Squeezing plate; 73. Driven mechanism; 8. Fixed plate; 81. Return spring; 82. Push plate; 83. Baffle; 9. Detailed Implementation

[0017] In view of the shortcomings of the prior art, the inventors of this invention, through long-term research and extensive practice, have proposed the technical solution of this invention. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples in the embodiments of this application.

[0018] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made on the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0020] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0021] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0022] The present invention aims to introduce and explain the structural composition of an acid-base concentration meter with protective function and the cooperation relationship between the various components. Unless otherwise specified, the size, material and manufacturing process of each component in the acid-base concentration meter with protective function in the present invention embodiment can be selected according to specific circumstances, and no special limitation or explanation is given here.

[0023] Furthermore, to provide the public with a better understanding of the present invention, certain specific details are described in detail in the following description of the invention. However, those skilled in the art will fully understand the invention even without these detailed descriptions.

[0024] Please also refer to Figures 1-4 This embodiment provides an acid-base concentration meter with protective function, including a concentration meter body 1, a probe 11, a protective cover 2, a sealing mechanism 3, a liquid guide tube 4, a purified liquid tank 5, a water pump 6, a transmission mechanism 7, and a driven mechanism 8. The concentration meter body 1 is connected to the probe 11, which is inserted into the protective cover 2. The protective cover 2 has several through holes on its side. The sealing mechanism 3 is rotatably connected to the protective cover 2 and can seal the through holes by rotation. Specifically, the protective cover 2 is a hollow, closed-end tubular structure. The probe 11 is preferably detachably fixed and inserted into the protective cover 2. The sealing mechanism 3 is rotatably connected to the top of the protective cover 2. Specifically, the top of the protective cover 2 has an annular protrusion, and the sealing mechanism 3 is rotatably connected to the protrusion. The sealing mechanism 3 can be fixed in position by friction. The protective cover 2 is preferably made of acid and alkali resistant high-strength polypropylene (PP) or polytetrafluoroethylene (PTFE).

[0025] The liquid guide tube 4 is fixed at an angle and passes through the top of the protective cover 2. One end of the water pump 6 is connected to the purification liquid tank 5, and the other end is connected to the liquid guide tube 4 through a conduit. It should be understood that the purification liquid tank 5 contains purification liquid, preferably a 3mol / L potassium chloride solution. The water pump 6 can deliver the purification liquid to the liquid guide tube 4 and flow into the protective cover 2. The liquid guide tube 4 faces the probe 11.

[0026] The transmission mechanism 7 is rotatably connected to the top of the protective cover 2. The purified liquid flowing out of the liquid guide tube 4 can drive the transmission mechanism 7 to rotate, and the rotation of the transmission mechanism 7 can drive the sealing mechanism 3 to rotate. When the purified liquid submerges the bottom of the transmission mechanism 7, the transmission mechanism 7 stops rotating. Specifically, the transmission mechanism 7 drives the sealing component to rotate, thereby sealing the through holes. After the sealing component seals each through hole, the purified liquid gradually accumulates inside the protective cover 2. When the purified liquid submerges the structure of the transmission mechanism 7 that is being scoured by the flowing water, the transmission component stops rotating due to the scouring of the water flow and can rotate through the rotation of the structure located at the top of the protective cover 2.

[0027] The driven mechanism 8 is elastic and retractably located on the top of the protective cover 2; the switch of the water pump 6 is a self-locking switch 61, located on the top surface of the protective cover 2; the rotation of the transmission mechanism 7 can continuously compress the driven mechanism 8, and the resetting force of the driven mechanism 8 can drive the stopped transmission mechanism 7 to rotate in the opposite direction and squeeze the self-locking switch 61.

[0028] It should be understood that the self-locking switch 61 is a switch that switches between open and closed states by repeated pressing; the water flow drives the transmission mechanism 7 to rotate in the forward direction. Under this rotation, the transmission mechanism 7 continuously squeezes the driven mechanism 8, causing the driven mechanism 8 to compress and move away from the self-locking switch 61; when the water submerges the bottom of the transmission mechanism 7, the transmission mechanism 7 stops rotating, and the compressed driven mechanism 8 loses resistance and resets under the action of the elastic force. Its reset force squeezes the self-locking switch 61, realizing the closing of the self-locking switch 61; preferably, in the initial state, the spring is in a compressed state and squeezes the self-locking switch 61, and its force on the self-locking switch 61 is slightly less than the force that squeezes the self-locking switch 61 to open or close it.

[0029] In this application, after the test is completed and the remaining test liquid in the protective cover 2 is poured out, the self-locking switch 61 is pressed to start the water pump 6. The purification liquid washes the probe 11 and drives the rotating transmission mechanism 7 to rotate. The rotation of the transmission mechanism 7 continuously drives the sealing component to rotate and seal the through hole. During this process, the protective cover 2 can be tilted so that the initially cleaned purification liquid can flow out. After it flows out, the protective cover 2 can be placed upright again. As the through hole is sealed, the purification liquid gradually accumulates in the protective cover 2 and eventually causes the transmission mechanism 7 to stop rotating. The squeezed driven mechanism 8 resets and the self-locking switch 61 is pressed again to shut off the water pump 6. Thus, during the manufacturing process of cellulosic ethanol, after the acid and alkali concentration test is completed, the probe 11 can be cleaned and soaked by pressing the switch of the water pump 6 once, and the water pump 6 can be automatically shut off, thus saving multiple manual operations.

[0030] In other embodiments, the transmission mechanism 7 includes a rotating assembly 71, an inclined fan blade 72, and a pressing plate 73. The rotating assembly 71 is rotatably mounted on the top of the protective cover 2, and its rotation drives the closing mechanism 3 to rotate. The inclined fan blade 72 is circumferentially disposed at one end of the rotating assembly 71 inside the protective cover 2, and the purified liquid flowing out of the liquid guide pipe 4 drives the inclined fan blade to rotate. Multiple pressing plates 73 are provided and circumferentially disposed at one end of the rotating assembly 71 on the top surface of the protective cover 2, and their rotation drives the driven mechanism 8 to retract away from the self-locking switch 61. Specifically, the inclined fan blade 72 is inclined on the rotating shaft of the rotating assembly 71. When the purified liquid submerges the inclined fan blade 72, the purified liquid flowing in again is unable to drive the inclined fan blade 72 to rotate again due to the resistance of the accumulated purified liquid, and the inclined fan blade 72 stops rotating. Due to the angled arrangement of the inclined fan blades 72, when the inclined fan blades 72 rotate, the inflowing purification liquid can flow to all sides through the inclined fan blades 72, so that the purification liquid can not only clean the probe 11, but also clean the side of the protective cover 2.

[0031] In other embodiments, the rotating assembly 71 includes a rotating shaft 711 and a gear 712; the rotating shaft 711 is rotatably connected to the protective cover 2 and passes through the top surface of the protective cover 2; the gear 712 is coaxially fixed on the rotating shaft 711 and can drive the closing mechanism 3 to rotate. Specifically, the inclined fan blade 72 is located at the bottom of the rotating shaft 711, and the extrusion plate 73 is located at the top of the rotating shaft 711.

[0032] In other embodiments, the sealing assembly includes a sealing plate 31, a rotating plate 32, and a driving assembly 33. The rotating plate 32 is rotatably connected to the top surface of the protective cover 2 and is connected to the sealing plate 31. The sealing plate 31 is in contact with the protective cover 2 and can seal the through holes. The driving assembly 33 is connected to the rotating plate 32, and the rotation of the transmission mechanism 7 can drive the driving assembly 33 to rotate. Specifically, the rotation of the gear 712 can drive the driving assembly 33 to rotate, and the number of sealing plates 31 corresponds to the number of through holes. The rotating plate 32 is preferably a U-shaped plate, and its position can be fixed by friction with the protective cover 2.

[0033] In other embodiments, the drive assembly 33 includes an arc-shaped rack 331 and a connecting plate 332; the arc-shaped rack 331 is connected to the rotating plate 32 via the connecting plate 332, and the rotation of the transmission assembly can drive the arc-shaped rack 331 to rotate. Specifically, the arc-shaped rack 331 meshes with the gear 712.

[0034] In other embodiments, the driven mechanism 8 includes a fixed plate 81, a return spring 82, and a push plate 83. The fixed plate 81 is fixed to the top surface of the protective cover 2 and connected to the push plate 83 via the return spring 82. The rotation of the transmission mechanism 7 continuously compresses the push plate 83. It should be understood that the push plate 83 faces the self-locking switch 61, and the compressed return spring 82 can use the momentum generated by the impact to open or close the self-locking switch 61. Preferably, the top of the protective cover 2 is provided with a groove, and the push plate 83 is slidably connected in the groove, or the sides of the push plate 83 are limited by the sides of the groove.

[0035] In other designs, a friction pad is also provided inside the rotating plate 32. The friction pad further enhances the friction between the rotating plate 32 and the protective cover 2, preventing accidental rotation of the rotating plate 32.

[0036] In other solutions, a baffle 9 is also provided, which can limit the compression of the return spring 82 by limiting the push plate 83.

[0037] Specifically, the initial state can be configured such that the spring force of the reset spring 82 can drive the push plate 83 to press the self-locking switch 61 all the way down, thus activating the self-locking switch 61. By setting the baffle 9, the reset spring 82 is further compressed. After the test is completed, the baffle 9 is slid away from the push plate 83. Under the action of the reset spring 82, the push plate 83 presses the self-locking switch 61, thus activating the self-locking switch 61. As the water flow washes over the rotating shaft 711, it drives the push plate 83 away from the self-locking switch 61 again through the pressing plate 73. After the rotating shaft 711 stops rotating, the push plate 83 presses the self-locking switch 61 again, thus closing the self-locking switch 61. The operation process is as follows: In the initial state, the water pump 6 is not started, the push plate 83 is restricted by the baffle 9, and the return spring 82 is in a compressed state. After the test is completed, the baffle 9 is slid away from the push plate 83. The return spring 82 is released from the restriction of the baffle 9 and, by means of its elasticity, pushes the push plate 83 to press the self-locking switch 61 all the way down. The return spring 82 is still in a compressed state, which causes the self-locking switch 61 to open the water pump 6. The purified liquid transmitted by the water pump 6 drives the inclined fan blade to rotate, which in turn causes the squeezing plate 73 to rotate. The rotation of the squeezing plate 73 causes the push plate 83 to move away from the self-locking switch 61 continuously. After the purified liquid in the protective cover 2 is full, the squeezing plate 73 stops rotating. The push plate 83, driven by the return spring 82, squeezes the self-locking switch 61 again, thereby turning off the water pump 6. Afterward, the operator only needs to squeeze the return spring 82 again and move the baffle 9 to restrict its position as needed to prevent the self-locking switch 61 from being in a compressed state for a long time. This structure ensures that the pre-set reset spring 82 has a sufficiently large reset force, preventing the spring force from being too small to drive the self-locking switch 61 to start or stop.

[0038] In other designs, a filter screen is also provided on the through-hole.

[0039] The aforementioned acid-base concentration meter with protective functions can automatically complete rinsing and soaking actions after the test is completed, reducing the labor intensity of operators.

[0040] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It should not be considered that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. An acid-base concentration meter with protective function, characterized in that: It includes the concentration meter body, probe, protective cover, sealing mechanism, liquid guide tube, purified liquid tank, water pump, transmission mechanism and driven mechanism; The concentration meter body is connected to the probe, the probe is inserted into the protective cover, and the protective cover has several through holes on its side; the sealing mechanism is rotatably connected to the protective cover and can close the through holes by rotation. The liquid guide tube is fixed at an angle and passes through the top of the protective cover. One end of the water pump is connected to the purified liquid tank, and the other end is connected to the liquid guide tube through a conduit. The transmission mechanism is rotatably connected to the top of the protective cover. The purified liquid flowing out of the liquid guide tube can drive the transmission mechanism to rotate, and the rotation of the transmission mechanism can drive the sealing mechanism to rotate. When the purified liquid covers the bottom of the transmission mechanism, the transmission mechanism stops rotating. The driven mechanism is elastic and retractably located on the top of the protective cover; the water pump switch is a self-locking switch and is located on the top surface of the protective cover; the rotation of the transmission mechanism can continuously compress the driven mechanism, and the resetting force of the driven mechanism can drive the stopped transmission mechanism to rotate in the opposite direction and squeeze the self-locking switch.

2. The acid-base concentration meter with protective function according to claim 1, characterized in that: The transmission mechanism includes a rotating assembly, inclined fan blades, and a pressing plate; the rotating assembly is rotatably mounted on the top of the protective cover, and the rotation of the rotating assembly can drive the closing mechanism to rotate; the inclined fan blades are circumferentially disposed at one end of the rotating assembly located inside the protective cover, and the purified liquid flowing out of the liquid guide tube can drive the inclined fan blades to rotate; multiple pressing plates are provided and circumferentially disposed at one end of the rotating assembly located on the top surface of the protective cover, and the rotation of the pressing plates can drive the driven mechanism to retract away from the self-locking switch.

3. The acid-base concentration meter with protective function according to claim 2, characterized in that: The rotating assembly includes a rotating shaft and a gear; the rotating shaft is rotatably connected to the protective cover and passes through the top surface of the protective cover; the gear is coaxially fixed on the rotating shaft and can drive the enclosed mechanism to rotate.

4. The acid-base concentration meter with protective function according to claim 3, characterized in that: The enclosure assembly includes a sealing plate, a rotating plate, and a drive assembly; the rotating plate is rotatably connected to the top surface of the protective cover and connected to the sealing plate, the sealing plate is in contact with the protective cover and can seal the through hole; the drive assembly is connected to the rotating plate, and the rotation of the transmission mechanism can drive the drive assembly to rotate.

5. An acid-base concentration meter with protective function according to claim 4, characterized in that: The drive assembly includes an arc-shaped rack and a connecting plate; the arc-shaped rack is connected to the rotating plate through the connecting plate, and the rotation of the transmission assembly can drive the arc-shaped rack to rotate.

6. The acid-base concentration meter with protective function according to claim 1, characterized in that: The driven mechanism includes a fixed plate, a return spring, and a push plate; the fixed plate is fixed to the top surface of the protective cover and is connected to the push plate through the return spring; the rotation of the transmission mechanism can continuously squeeze the push plate.

7. The acid-base concentration meter with protective function according to claim 4, characterized in that: The rotating plate is also equipped with a friction pad.

8. An acid-base concentration meter with protective function according to claim 6, characterized in that: It is also provided with a baffle that can limit the compression of the return spring by restricting the push plate.

9. An acid-base concentration meter with protective function according to any one of claims 1-8, characterized in that: A filter screen is also provided on the through hole.

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