Drip-proof acidity detection device

Abstract

This utility model relates to the technical field of acidity detection devices, and more particularly to a leak-proof acidity detection device, comprising a cabinet. From left to right, the top of the cabinet is equipped with a detector, a sliding cover, a fan, a cleaning assembly, a measuring cup, and a clamping assembly. The measuring cup is located behind the cleaning assembly, and the detection assembly is located to the left of the clamping assembly. The detection assembly is connected to the detector via a wire, and the measuring cup is located below the detection assembly. This device uses a water pump to clean the detection tube with cleaning fluid through a tap. After drying with a fan, a suitable amount of reference liquid is injected into the detection tube using a syringe. The detection tube is clamped between two clamping blocks through a double-layer sealing ring, a Z-shaped capillary outlet, a sealing ring, and a sealing cap. A second motor drives a second ball bearing nut to move back and forth, while a first motor drives a first ball bearing nut to move up and down, reducing the siphon effect and reference liquid leakage, thus lowering the equipment failure rate and the risk of contamination.

Description

Technical Field

[0001] This utility model relates to the technical field of acidity detection devices, specifically to a leak-proof acidity detection device. Background Technology

[0002] An acidity detection device is an instrument or system specifically used to measure the concentration of hydrogen ions in a solution or substance, and usually expresses its acidity or alkalinity in the form of pH value. In the field of baijiu processing, an acidity detection device is an analytical instrument specifically used to measure the total acid content or related acidity indicators (such as pH value) in baijiu in real time or quickly, with the core objectives of monitoring the stability of the fermentation process, ensuring the consistency of product taste, and meeting food safety standards.

[0003] Chinese utility model patent CN219496344U discloses a device for rapidly detecting the acidity of baijiu (Chinese liquor). This device includes "an adjusting rod, a placement ring, and a fixing clamp, etc. A test rod can be placed on the placement ring to detect the acidity of the baijiu, making it convenient for personnel to operate without requiring the test rod to be held. The fixing clamp can adjust the height of the placement ring via the adjusting rod, and a dustproof plate protects the detection equipment when it is not in use." However, traditional acidity detection devices suffer from continuous leakage of the reference liquid due to a siphon effect caused by temperature changes or mechanical vibration. Ethanol vapor also intrudes through the gaps in the electrode interface, dissolving the internal adhesive and increasing the equipment failure rate. Utility Model Content

[0004] The purpose of this invention is to provide a leak-proof acidity detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof acidity detection device, comprising a cabinet, wherein the top of the cabinet is provided with, from left to right, a detector, a sliding cover, a fan, a cleaning component, a measuring cup, and a clamping component, wherein the measuring cup is located behind the cleaning component, and the detection component is located on the left side of the clamping component, wherein the detection component is connected to the detector via a wire, and the measuring cup is located below the detection component.

[0006] The detection assembly includes an electrode cap, which is fixedly connected to the detector via a wire at the center of its top. The bottom of the electrode cap is provided with a double-layer sealing ring, and the bottom of the electrode cap is connected to the detection tube and the electrode rod via the double-layer sealing ring. The detection tube contains an electrode rod, and the bottom of the detection tube has a detection port. Inside the detection port, from top to bottom, there is a spherical air buffer chamber and a Z-shaped capillary liquid outlet. The left side of the detection tube has a liquid addition tube, and the inner wall of the detection tube has a temperature sensing module. The liquid addition tube is connected to a rubber cap via a sealing ring, and the outer wall of the rubber cap has a thread. The rubber cap and the sealing cap are threaded together.

[0007] The beneficial effects of this utility model are as follows: the device can use a water pump to clean the test tube body with cleaning fluid through a faucet, and after drying with a fan, inject an appropriate amount of reference liquid into the test tube body with a syringe. The test tube body is clamped between two clamping blocks through a double-layer sealing ring, a Z-shaped capillary outlet, a sealing ring and a sealing cap. The second motor drives the second ball nut to move back and forth, and the first motor drives the first ball nut to move up and down, which reduces the siphon effect and reference liquid leakage, and reduces the equipment failure rate and pollution risk.

[0008] To enable the detection tube to move automatically during the detection process, facilitating automated sample detection:

[0009] The clamping assembly is further configured as follows: the clamping assembly includes a first motor, the bottom of which is fixedly mounted on the horizontal plate at the bottom of the cabinet by bolts; the output end of the first motor passes through the cabinet and is fixedly connected to a first lead screw; a first ball nut is threadedly connected to the outer wall of the first lead screw, and the first ball nut is movably inserted into the groove of the right side bracket of the cabinet by two T-shaped blocks on the right side; a second lead screw is movably inserted into the protruding block on the left side of the first ball nut; a second motor is fixedly connected to the rear end of the second lead screw, and the second motor is fixedly mounted on the rear side of the first ball nut by bolts; a second ball nut is threadedly connected to the outer wall of the second lead screw, and the right T-shaped block of the second ball nut is movably inserted into the groove of the first ball nut; a groove is provided at the left end of the second ball nut, and a first clamping block is mortised and tenoned to the second ball nut through the groove; a rotating buckle is provided at the top of the second ball nut; the first clamping block is threadedly connected to the second clamping block by a pin; and elastic gaskets are provided on the inner walls of the first clamping block and the second clamping block.

[0010] By adopting the above technical solution, the detection tube is placed between the first clamping block and the second clamping block. The presence of the elastic gasket reduces the wear on the detection tube. The two clamping blocks are fixed together by a pin and are engaged in the groove of the second ball nut. Tightening the rotating buckle completes the fixation. The second motor drives the second ball nut to move up and down via the second lead screw, and the first motor drives the first ball nut to move back and forth via the first lead screw, so that the detection tube moves automatically during the detection process, thereby facilitating the automatic detection of the sample.

[0011] To facilitate cleaning of the testing tube before and after testing, thereby improving testing efficiency and accuracy:

[0012] Further configuration: The cleaning assembly includes a liquid storage tank, the bottom of which is fixedly installed on a horizontal plate at the bottom of the cabinet, and an inlet pipe is provided on the rear side of the liquid storage tank. The liquid storage tank is fixedly connected to and communicates with a faucet through a water pump and pipe at the top. The base of the faucet penetrates through the cabinet and is fixedly connected to the cabinet. The outlet of the faucet is provided with a spray head, and a water collection tank is provided below the spray head. The water collection tank is fixedly connected to a waste liquid tank through a water outlet pipe, and a liquid outlet pipe is provided on the rear side of the outer wall of the waste liquid tank.

[0013] By adopting the above technical solution, the external cleaning fluid enters the storage tank through the inlet pipe, and then the water pump draws the cleaning fluid into the faucet, which cleans the detection tube from the spray head. The waste liquid after cleaning flows into the waste liquid tank and is discharged along the outlet pipe, so that the detection tube can be cleaned before and after detection, thereby improving detection efficiency and accuracy.

[0014] To achieve the goal of keeping the internal components of this equipment clean and tidy during long-term storage and reducing the equipment failure rate:

[0015] Further configuration: the outer wall of the cabinet has a groove whose inner wall size matches the outer wall size of the sliding cover; the middle right side of the sliding cover has a groove whose inner wall size matches the outer wall size of the first lead screw; and handles are provided on both the front and rear sides of the top right end of the sliding cover.

[0016] By adopting the above technical solution, the cover plate can be pulled out along the cabinet slide by pulling the handle on the cover plate, thus covering the water collection tank and measuring cup on the cabinet, keeping the internal equipment clean and tidy when the equipment is placed for a long time, and reducing the equipment failure rate.

[0017] To ensure that the reference liquid is slowly expelled from the aspirated gas as temperature changes occur during detection, thereby reducing the internal and external pressure difference and improving detection accuracy:

[0018] A further configuration is provided: a hydrophobic PTFE film is provided between the outer wall of the electrode rod and the spherical region at the top of the detection tube.

[0019] By adopting the above technical solution, when the detection tube and electrode rod are inserted into or removed from the test sample, the reference liquid expands and vents or draws in gas due to the temperature difference. The gas flows in and out of the spherical buffer cavity along the hydrophobic PTFE membrane, which reduces the internal and external pressure difference during the detection process, reduces the contamination of the test sample, and improves the detection accuracy.

[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main view of this utility model;

[0022] Figure 2 This is a schematic diagram of the cleaning component of this utility model;

[0023] Figure 3 This is a schematic diagram of the clamping assembly of this utility model;

[0024] Figure 4 This is a schematic diagram of the detection component of this utility model.

[0025] In the diagram: 1. Cabinet; 2. Detector; 3. Sliding cover; 4. Fan; 5. Cleaning assembly; 501. Liquid storage tank; 502. Faucet; 503. Water collection tank; 504. Waste liquid tank; 6. Measuring cup; 7. Clamping assembly; 701. First motor; 702. First lead screw; 703. First ball nut; 704. Second lead screw; 705. Second motor; 706. Second ball nut; 707. First clamping block; 708. Second clamping block; 8. Detection assembly; 801. Electrode cap; 802. Double sealing ring; 803. Detection tube; 804. Electrode rod; 805. Detection port; 806. Liquid filling tube; 807. Rubber cover; 808. Sealing cover. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0027] Please see Figures 1 to 4 A leak-proof acidity testing device includes a cabinet 1. The top of the cabinet 1 is provided with, from left to right, a detector 2, a sliding cover 3, a fan 4, a cleaning component 5, a measuring cup 6, and a clamping component 7. The measuring cup 6 is located behind the cleaning component 5. The detection component 8 is located on the left side of the clamping component 7. The detection component 8 is connected to the detector 2 via a wire, and the measuring cup 6 is located below the detection component 8.

[0028] The detection assembly 8 includes an electrode cap 801, which is fixedly connected to the detector 2 via a wire at the center of its top. The bottom of the electrode cap 801 is provided with a double-layer sealing ring 802, and the bottom of the electrode cap 801 is connected to the detection tube 803 and the electrode rod 804 via the double-layer sealing ring 802. The electrode rod 804 is provided inside the detection tube 803, and the bottom of the detection tube 803 is provided with a detection port 805. The detection port 805 is provided with a spherical air buffer chamber and a Z-shaped capillary liquid outlet from top to bottom. The left side of the detection tube 803 is provided with a liquid addition tube 806, and the inner wall of the detection tube 803 is provided with a temperature sensing module. The liquid addition tube 806 is connected to a rubber cap 807 via a sealing ring, and the outer wall of the rubber cap 807 is provided with a thread. The rubber cap 807 is threadedly connected to the sealing cap 808.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the clamping assembly 7 includes a first motor 701. The bottom of the first motor 701 is fixedly mounted on the horizontal plate at the bottom of the cabinet 1 by bolts. The output end of the first motor 701 passes through the cabinet 1 and is fixedly connected to a first lead screw 702. A first ball nut 703 is threaded onto the outer wall of the first lead screw 702, and the first ball nut 703 is movably inserted into the groove of the right side bracket of the cabinet 1 through two T-shaped blocks on the right side. A second lead screw 704 is movably inserted into the protruding block on the left side of the first ball nut 703. A second motor 705 is fixedly connected to the rear end of the second lead screw 704. 05 is fixedly installed on the rear side of the first ball nut 703 by bolts. The outer wall of the second lead screw 704 is threadedly connected to the second ball nut 706, and the right side T-shaped block of the second ball nut 706 is movably inserted into the groove of the first ball nut 703. The left end of the second ball nut 706 is provided with a groove, and the second ball nut 706 is connected to the first clamping block 707 by the groove and tenon. The top of the second ball nut 706 is provided with a rotating buckle. The first clamping block 707 is threadedly connected to the second clamping block 708 by a pin. The inner walls of the first clamping block 707 and the second clamping block 708 are provided with elastic washers.

[0030] In this embodiment, as Figure 1 and Figure 2 As shown, the cleaning assembly 5 includes a liquid storage tank 501. The bottom of the liquid storage tank 501 is fixedly installed on the horizontal plate at the bottom of the cabinet 1, and the liquid storage tank 501 is provided with a liquid inlet pipe at the rear. The liquid storage tank 501 is fixedly connected to and communicates with the faucet 502 through the water pump and pipe at the top. The base of the faucet 502 passes through the cabinet 1 and is fixedly connected to the cabinet 1. The water outlet of the faucet 502 is provided with a spray head, and a water collection tank 503 is provided below the spray head. The water collection tank 503 is fixedly connected to the waste liquid tank 504 through a water outlet pipe, and a liquid outlet pipe is provided on the rear side of the outer wall of the waste liquid tank 504.

[0031] In this embodiment, as Figure 1 As shown, the outer wall of the cabinet 1 has a groove whose inner wall size matches the outer wall size of the sliding cover 3. The middle right side of the sliding cover 3 has a groove whose inner wall size matches the outer wall size of the first lead screw 702. The front and rear sides of the top right end of the sliding cover 3 are provided with handles.

[0032] In this embodiment, as Figure 4 As shown, a hydrophobic PTFE film is provided between the outer wall of the electrode rod 804 and the spherical area on the upper part of the detection tube 803.

[0033] The computer software involved in the hardware carriers such as the geared motor in the technical solution is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carriers. In other words, the computer software portion of the technical solution is an essential technical feature for solving the aforementioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature or a point of technical improvement. The applicant has not made any technical improvements to the computer software portion involved in the aforementioned related hardware carriers, nor is it a key technical point of the invention.

[0034] Therefore, the "first motor 701", "second motor 705", "fan 4", etc. involved in this application are physical functional modules that combine computer software programs or protocols in the prior art with the hardware carrier of this application. The computer software programs involved in these physical functional modules are all technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction relationship between the various physical functional modules, that is, the improvement of the overall structure of the leak-proof acidity detection device of this application, so as to solve the corresponding technical problems to be solved by this application.

[0035] The drip-proof acidity detection device operates as follows:

[0036] First, the staff moves the equipment to a suitable position using the casters fixed at the four right angles of the bottom of cabinet 1 and the handles on the side of cabinet 1. They then depress the locking mechanism on the casters and pull open the sliding cover 3 using the two handles. The sliding cover 3 slides into the cabinet 1 along the groove. The valve on the rear inlet pipe of the storage tank 501 is opened, and the appropriate cleaning solution is selected according to the type of contamination. The cleaning solution is then poured into the storage tank 501. The water pump at the top of the storage tank 501 is turned on, and the pump draws the cleaning solution into the faucet 502 through the connected pipe. The cleaning solution is sprayed out through the spray nozzle to clean the detection tube 803. The waste liquid after cleaning flows to the lower collection tank 503. The drain plug of the collection tank 503 is pulled out, and the waste liquid flows into the waste liquid tank 504 through the lower pipe, where it is stored until a certain level is reached. The waste liquid is discharged through the external pipeline by opening the outlet valve. After cleaning, the detection tube 803 is dried by starting the fan 4. The detection tube 803 is clamped between the first clamping block 707 and the second clamping block 708, avoiding the position of the liquid addition pipe 806. The first clamping block 707 and the second clamping block 708 are fixedly connected by screwing in the pins, clamping the detection tube 803. The detection tube 803 is buffered by elastic gaskets between the first clamping block 707 and the second clamping block 708. The elastic gaskets have anti-slip textures to increase friction. The clamped first clamping block 707 is mortised onto the second ball nut 706 through the protruding block on the right side. The rotating buckle on the second ball nut 706 is turned for secondary fixation to prevent shaking during up and down movement. Motor 705 drives the second lead screw 704 to rotate, thereby moving the second ball nut 706 back and forth. The second ball nut 706 moves back and forth along the groove on the first ball nut 703. Motor 701 drives the first lead screw 702 to rotate, thereby moving the first ball nut 703 and the second ball nut 706 up and down together. At this time, the first ball nut 703 moves up and down along the groove of the right end bracket of the cabinet 1. According to the current position of the detection tube 803, select the appropriate time to start and adjust the first motor 701 or the second motor 705 to gradually move the detection tube 803 above the cleaned and dried measuring cup 6. Pour the sample to be tested into the measuring cup 6, unscrew the sealing cap 808 to expose the rubber cap 807, and use a syringe to add the appropriate reference solution. The reference solution is injected into the detection tube 803 through the injection tube 806, with the reference solution level below the hydrophobic PTFE film. The surface of the electrode rod 804 is coated with an Al2O3 ceramic layer using magnetron sputtering to ensure that the detection tube 803 has at least 5% expansion space. Afterwards, the sealing cap 808 is screwed back on, and the first motor 701 is started, inserting the detection tube 803 into the sample to be tested. The spherical air buffer chamber in the detection port 805, the Z-shaped capillary outlet, the temperature sensing module, and the spherical gas buffer chamber on the hydrophobic PTFE film of the detection tube 803 reduce the internal and external pressure difference, preventing reference solution leakage due to the siphon effect and physically blocking the continuous liquid flow. After the reference solution contacts the sample to be tested, an ion pathway is formed between the sample and the electrode interior, closing the electrochemical circuit.The acidity test results are displayed on the detector 2. Simultaneously, the double-layer sealing ring 802 between the electrode cap 801 and the test tube 803, and the electrode rod 804, and the sealing ring between the liquid addition tube 806 and the rubber cap 807, ensure that ethanol vapor does not seep into the electrode interface, preventing malfunctions that could lead to inaccurate acidity test results. After the test tube 803 leaves the sample, it is moved back to the water collection tank 503 for cleaning and drying, following the same principle. The top of the water collection tank 503 is an inverted trapezoidal funnel shape with an extended baffle on the left end. The edge of the opening at the top of the water collection tank 503 is close to the opening of the measuring cup 6 to prevent residual liquid from dripping onto the cabinet 1 during movement. The residual liquid on the test tube 803 is collected and directed to the waste liquid tank 504.

[0037] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0038] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A leak-proof acidity detection device, comprising a cabinet (1), characterized in that: The top of the cabinet (1) is provided with a detector (2), a sliding cover (3), a fan (4), a cleaning component (5), a measuring cup (6) and a clamping component (7) from left to right. The measuring cup (6) is located behind the cleaning component (5). The detection component (8) is located on the left side of the clamping component (7). The detection component (8) is connected to the detector (2) through a wire, and the measuring cup (6) is located below the detection component (8). The detection assembly (8) includes an electrode cap (801), which is fixedly connected to the detector (2) via a wire at the center of its top. The bottom of the electrode cap (801) is provided with a double-layer sealing ring (802), and the bottom of the electrode cap (801) is connected to the detection tube body (803) and the electrode rod (804) via the double-layer sealing ring (802). The detection tube body (803) contains the electrode rod (804), and the bottom of the detection tube body (803) is provided with... There is a detection port (805), and the inside of the detection port (805) is provided with a spherical air buffer chamber and a Z-shaped capillary liquid outlet from top to bottom. The detection tube body (803) is provided with a liquid addition tube (806) on the left side, and the inner wall of the detection tube body (803) is provided with a temperature sensing module. The liquid addition tube (806) is connected to the rubber cover (807) through a sealing ring, and the outer wall of the rubber cover (807) is provided with a thread. The rubber cover (807) is threadedly connected to the sealing cover (808).

2. The leak-proof acidity detection device as described in claim 1, characterized in that: The clamping assembly (7) includes a first motor (701). The bottom of the first motor (701) is fixedly mounted on the horizontal plate at the bottom of the cabinet (1) by bolts. The output end of the first motor (701) passes through the cabinet (1) and is fixedly connected to a first lead screw (702). The outer wall of the first lead screw (702) is threaded with a first ball nut (703), and the first ball nut (703) is movably inserted into the groove of the right side bracket of the cabinet (1) through two T-shaped blocks on the right side. The left side protrusion of the first ball nut (703) is movably inserted with a second lead screw (704). The rear end of the second lead screw (704) is fixedly connected with a second motor (705), and the second motor ( 705) is fixedly installed on the rear side of the first ball nut (703) by bolts. The outer wall of the second lead screw (704) is threaded with the second ball nut (706). The right T-shaped block of the second ball nut (706) is movably inserted into the groove of the first ball nut (703). The left end of the second ball nut (706) is provided with a groove. The second ball nut (706) is connected to the first clamping block (707) by the groove and tenon. The top of the second ball nut (706) is provided with a rotating buckle. The first clamping block (707) is threaded with the second clamping block (708) by a pin. The inner walls of the first clamping block (707) and the second clamping block (708) are provided with elastic gaskets.

3. The leak-proof acidity detection device as described in claim 1, characterized in that: The cleaning assembly (5) includes a liquid storage tank (501). The bottom of the liquid storage tank (501) is fixedly installed on the horizontal plate at the bottom of the cabinet (1). The liquid storage tank (501) is provided with an inlet pipe at the rear. The liquid storage tank (501) is fixedly connected to and communicates with a faucet (502) through a water pump and pipe at the top. The base of the faucet (502) passes through the cabinet (1) and is fixedly connected to the cabinet (1). The water outlet of the faucet (502) is provided with a spray head. A water collection tank (503) is provided below the spray head. The water collection tank (503) is fixedly connected to a waste liquid tank (504) through a water outlet pipe. A liquid outlet pipe is provided on the rear side of the outer wall of the waste liquid tank (504).

4. The leak-proof acidity detection device as described in claim 1, characterized in that: The outer wall of the cabinet (1) has a groove whose inner wall is consistent with the outer wall structure of the sliding cover (3). The middle right side of the sliding cover (3) has a groove whose inner wall is consistent with the outer wall structure of the first lead screw (702). The front and rear sides of the top right end of the sliding cover (3) are provided with handles.

5. The leak-proof acidity detection device as described in claim 1, characterized in that: A hydrophobic PTFE film is provided between the outer wall of the electrode rod (804) and the spherical area at the top of the detection tube (803).

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