Testing head cleaning equipment and freezing point detection system
By designing an automated test head cleaning equipment, using the spray head and air blower combined with a hot air fan and a compressed air source, the inefficiency and cross-contamination problems caused by manual cleaning in freezing point detection are solved, and the rapid cleaning and efficient detection of the test head is achieved.
Patent Information
- Application Number
- CN202422455964.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-11
AI Technical Summary
In the prior art, the cleaning of the test head for freezing point detection is done manually, resulting in low detection efficiency and inaccurate detection results, and there is a risk of cross-contamination.
Design a test head cleaning equipment, including a cleaning device and a drying device, uses the spray head and the blower for automatic cleaning and drying, and combines a hot air fan and a compressed air source to achieve rapid cleaning of the test head.
It improves the cleaning efficiency of the test head, shortens the drying time, avoids cross-contamination, and ensures the accuracy and efficiency of the test results.
Smart Images
Figure CN223264400U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food detection, in particular to a test head cleaning device and a freezing point detection system. Background Art
[0002] The freezing point of raw milk is the freezing point, or solidification point, the temperature at which a substance transforms from a liquid to a solid. Because the freezing point of raw milk varies with the water content and other components, laboratories typically use freezing point testing as a key indicator for determining water adulteration. The freezing point value can also be used to roughly determine the amount of water added. Freezing point testing of raw milk requires continuous testing. The national standard requires that after completion of freezing point testing, the test head (i.e., the temperature sensor and stirring metal rod) be rinsed with water and wiped clean to ensure no residual moisture before the next freezing point test can be performed.
[0003] Currently, the cleaning of the test head of an ice point meter is performed manually. After testing a sample, the operator rinses the test head with a wash bottle and wipes it clean with a towel. Since each sample needs to be rinsed and wiped clean after testing, the towel cannot be guaranteed to be completely dry after wiping, and repeated use of the towel is prone to cross-contamination, which affects the test results. This takes up a lot of the operator's time, reduces test efficiency, and results in inaccurate test results. Utility Model Content
[0004] The utility model provides a test head cleaning device and a freezing point detection system, which are used to solve the problem in the prior art that the cleaning work of the test head used for freezing point detection is done manually, resulting in low detection efficiency and inaccurate detection results.
[0005] In order to solve the above technical problems, the utility model is achieved as follows:
[0006] In a first aspect, the present invention provides a test head cleaning device, comprising: a base, a cleaning device, and a drying device;
[0007] The cleaning device and the drying device can be movably mounted on the base; the cleaning device is used to clean the test head;
[0008] The drying device comprises: a second bracket, an air blowing head, a compressed air source and a hot air blower;
[0009] The second bracket is liftably mounted on the base, the compressed air source is connected to the air blowing head, the air blowing head is rotatably mounted on the second bracket, and the air blowing head is disposed toward the test head; the air outlet of the hot air blower is installed on the second bracket and disposed toward the test head.
[0010] According to a test head cleaning device provided by the present utility model, the cleaning device includes: a first bracket and a spray head;
[0011] The first bracket is movably mounted on the base, the shower head is rotatably mounted on the first bracket, and the shower head is disposed toward the test head.
[0012] According to the test head cleaning device provided by the present invention, the angle between the spray head and the test head is 45°.
[0013] According to the utility model, a test head cleaning device is provided, which further includes: a recovery device;
[0014] The recovery device includes: a collection hopper, a drainage pipeline and a recovery tank;
[0015] The collecting hopper is disposed around the lower side of the test head. One end of the drainage pipeline is communicated with the collecting hopper, and the other end of the drainage pipeline is communicated with the recovery tank.
[0016] According to the test head cleaning device provided by the present invention, the end of the collecting hopper connected to the drainage pipeline is funnel-shaped.
[0017] According to a test head cleaning device provided by the present invention, the hot air blower is a hair dryer, and the air flow of the hair dryer blows from top to bottom along the test head.
[0018] According to a test head cleaning device provided by the utility model, the air outlet of the air blowing head is in a frustum shape, and the large end of the air blowing head faces the test head.
[0019] According to the utility model, a test head cleaning device is provided, which further includes: a position detection sensor, a humidity sensor, a flow sensor, a controller and an alarm device;
[0020] The position detection sensor, the humidity sensor, the flow sensor and the alarm device are all connected to the controller;
[0021] The position detection sensor is used to detect the positions of the cleaning device and the drying device relative to the test head, the humidity sensor is used to detect the surface humidity of the test head, and the flow sensor is used to detect the gas flow on the surface of the test head.
[0022] According to a test head cleaning device provided by the present utility model, the cleaning device includes a mechanical arm and a cleaning cup;
[0023] The robot arm is rotatably disposed on the base to move the cleaning cup to the lower side of the test head. The cleaning cup is used to hold liquid for cleaning.
[0024] In a second aspect, the present invention provides a freezing point detection system, comprising: a freezing point meter and the test head cleaning device as described above;
[0025] The cryostat comprises a body and a test head, wherein the test head is movably arranged on the body;
[0026] When the test head completes a freezing point test, the test head moves upward and extends out of the body, and the test head cleaning device cleans the test head.
[0027] The test head cleaning device and freezing point detection system provided by the utility model are equipped with a hot air blower, a compressed air source and an air blowing head in a drying device, so that the test head cleaned by the cleaning device can be simultaneously blown with hot air by the hot air blower and blown with compressed air by the air blowing head. The simultaneous blowing of hot air and compressed air can quickly dry the cleaned test head, avoiding residual wet areas on the test head, so that the time for the test head to perform the next freezing point test can be shortened, cross contamination between different samples can be avoided, and the cleaning efficiency of the test head is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0029] Figure 1 This is a main structural diagram of the test head cleaning device provided by the utility model.
[0030] Figure 2 This is a top view of the structure of the test head cleaning device provided by the utility model.
[0031] Figure 3 This is a left-side structural diagram of the test head cleaning device provided by the present invention.
[0032] Figure 4 This is a control logic block diagram of the test head cleaning device provided by the utility model.
[0033] Reference numerals:
[0034] 1. Test head cleaning equipment;
[0035] 11. Base; 12. Cleaning device; 13. Drying device; 14. Recovery device; 15. Position detection sensor; 16. Humidity sensor; 17. Flow sensor; 18. Controller; 19. Alarm device; 121. First bracket; 131. Second bracket; 132. Compressed air source;
[0036] 2. Ice point meter; 21. Main body; 22. Test head. DETAILED DESCRIPTION
[0037] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0038] The following combination Figures 1 to 4 , the test head cleaning device and freezing point detection system provided by the embodiment of the present invention are described in detail through specific embodiments and their application scenarios.
[0039] First, as Figure 1 As shown, this embodiment provides a test head cleaning device 1 , comprising: a base 11 , a cleaning device 12 and a drying device 13 .
[0040] The cleaning device 12 and the drying device 13 are both movably mounted on the base 11 ; the cleaning device 12 is used to clean the test head 22 .
[0041] The drying device 13 includes a second bracket 131 , an air blowing head, a compressed air source 132 and a hot air blower.
[0042] The second bracket 131 is liftably mounted on the base 11 , the compressed air source 132 is connected to the air blowing head, and the air blowing head is rotatably mounted on the second bracket 131 and is disposed toward the test head 22 ; the air outlet of the hot air blower is mounted on the second bracket 131 and is disposed toward the test head 22 .
[0043] It is understood that the test head 22 of the cryostat 2 includes a temperature sensor and a stirring metal rod, which are spaced apart. During cryostat testing, the test head 22 descends into the test tube to perform the test. After the test is complete, the test head 22 ascends and exits the test tube. Each time the test head 22 ascends and exits the test tube, the test head cleaning device 1 cleans the test head 22.
[0044] The cleaning device 12 and the drying device 13 can be raised and lowered relative to the base 11, which facilitates adjusting the relative height of the cleaning device 12 and the drying device 13 relative to the test head 22 so that the cleaning device 12 and the drying device 13 can be close to the test head 22, facilitating subsequent cleaning processing.
[0045] Specifically, the cleaning device 12 and the drying device 13 can be raised and lowered by a telescopic rod, or by a slider rail.
[0046] The cleaning device 12 can remove the sample on the test head 22 so that when the freezing point test is performed again, there will be no crossover of samples to affect the freezing point test result.
[0047] The drying device 13 is used to dry the cleaned test head 22 so that the wet test head 22 can be dried as quickly as possible so as to perform the next freezing point test.
[0048] The hot air blower is used to blow hot air to the test head 22, heating and purging the wet surface of the test head 22 with the hot air. At the same time, the blowing head blows compressed air to the surface of the test head 22, which further supplements the hot air purging. The compressed air and hot air of the blowing head are purged on the test head 22 synchronously, which can ensure that the surface of the test head 22 is covered by the omnidirectional purging air, so that the test head 22 can be dried as quickly as possible, thereby improving the drying effect of the test head 22, shortening the drying time of the test head 22, and thus improving the cleaning efficiency of the test head 22.
[0049] Specifically, the air blowing head can rotate relative to the second bracket 131. After the second bracket 131 is adjusted to be close to the test head 22, the air blowing head can rotate and purge the test head 22, and can purge different areas of the test head 22, thereby improving the drying effect of the purge of the test head 22. The compressed air source 132 is used to provide compressed air to the air blowing head. The compressed air source 132 can be a compressed air tank or a compressor.
[0050] The test head cleaning device 1 and freezing point detection system provided by the present invention are configured with a hot air blower, a compressed air source 132 and an air blowing head in the drying device 13, so that the test head 22 cleaned by the cleaning device 12 can be simultaneously blown with hot air by the hot air blower and blown with compressed air by the air blowing head. The simultaneous blowing of hot air and compressed air can quickly dry the cleaned test head 22, avoiding residual wet areas on the test head 22, so that the time for the next freezing point test of the test head 22 can be shortened, cross contamination between different samples can be avoided, and the cleaning efficiency of the test head 22 is improved.
[0051] In some embodiments, as Figure 1 and Figure 2 As shown, the cleaning device 12 of this embodiment includes: a first bracket 121 and a spray head.
[0052] The first bracket 121 is movably mounted on the base 11 . The shower head is rotatably mounted on the first bracket 121 , and the shower head is disposed toward the test head 22 .
[0053] It is understandable that the cleaning device 12 of this embodiment uses a spray head to clean the test head 22. The spray head sprays water to the test head 22. The water flow rinses the sample attached to the test head 22 and drains the sample away with the water flow, thereby cleaning the sample on the test head 22.
[0054] The lifting and lowering adjustment of the first bracket 121 enables the sprinkler head to approach the test head 22 and place the test head 22 within the range of the spraying water. Furthermore, the sprinkler head can rotate relative to the first bracket 121, so that during the process of spraying the test head 22, the water flow can change direction and flushing area. The sprinkler head can spray the test head 22 in different directions and flush different areas of the test head 22, ensuring that the sprinkler head can comprehensively flush the test head 22 from all angles and directions, thereby improving the quality of flushing.
[0055] In some embodiments, the angle between the shower head and the test head 22 of this embodiment is 45°.
[0056] It is understandable that when the angle between the shower head and the test head 22 is 45°, the coverage and distribution of the water mist of the shower head are the widest, ensuring that the water mist sprayed by the shower head can cover the surface of the test head 22 to the maximum extent, so that the flushing effect of the test head 22 is better.
[0057] In some embodiments, as Figure 3 As shown, the test head cleaning device 1 of this embodiment further includes a recovery device 14 .
[0058] The recovery device 14 includes a collecting hopper, a drainage pipeline and a recovery tank.
[0059] The collecting hopper is disposed on the lower side of the test head 22 , one end of the drainage pipeline is connected to the collecting hopper, and the other end of the drainage pipeline is connected to the recovery tank.
[0060] As will be appreciated, the collection hopper is used to collect waste liquid generated during the cleaning and drying of test head 22. The waste liquid is then transported through the drainage pipeline and discharged into the recovery tank. The collection hopper allows waste liquid generated during the cleaning process of test head 22 to be collected, preventing the indiscriminate discharge of waste liquid from contaminating cryostat 2 and potentially affecting freezing point detection.
[0061] Furthermore, the recovery tank is set to have a negative pressure so that the waste liquid can only flow toward the recovery tank, thereby avoiding the waste liquid in the drainage pipeline from flowing back.
[0062] In some embodiments, the end of the collecting hopper of this embodiment connected to the drainage pipeline is funnel-shaped.
[0063] It can be understood that the end of the collecting bucket connected to the drain pipe is funnel-shaped, and the large end of the collecting bucket faces the test head 22. The larger space area allows all the waste liquid from the test head 22 to be collected. The small end of the collecting bucket faces the drain pipe, ensuring the connection between the collecting bucket and the drain pipe. In addition, the funnel-shaped collecting bucket can ensure that the waste liquid is guided to the drain pipe, reducing splashing, and helps to concentrate the waste liquid, which is beneficial for the waste liquid to be quickly transported to the drain pipe.
[0064] In some embodiments, as Figure 1 As shown, the hot air blower of this embodiment is a hair dryer, and the air flow of the hair dryer blows from top to bottom along the test head 22.
[0065] It can be understood that the hair dryer relies on the heating wire to heat the air, and drives the rotor through the motor to drive the fan blades to rotate, thereby blowing out hot air to dry the test head 22, and the air flow of the hair dryer blows from top to bottom along the test head 22. The hot air can dry the wet surface of the test head 22 and quickly take away the moisture through the airflow to achieve rapid drying of the test head 22.
[0066] In some embodiments, as Figure 1 As shown, the air outlet of the air blowing head of this embodiment is in a frustum shape, and the large end of the air blowing head faces the test head 22 .
[0067] It can be understood that the air outlet of the air blowing head of this embodiment is in the shape of a cone, with the large end facing the test head 22, so that the air flow can be concentrated, the efficiency of blowing can be improved, and the wind direction can be better controlled, so that the air outlet has a better drying effect on the test head 22.
[0068] In some embodiments, as Figure 4 As shown, the test head cleaning device 1 of this embodiment further includes: a position detection sensor 15 , a humidity sensor 16 , a flow sensor 17 , a controller 18 and an alarm device 19 .
[0069] The position detection sensor 15 , the humidity sensor 16 , the flow sensor 17 and the alarm device 19 are all connected to the controller 18 .
[0070] The position detection sensor 15 is used to detect the positions of the cleaning device 12 and the drying device 13 relative to the test head 22 , the humidity sensor 16 is used to detect the surface humidity of the test head 22 , and the flow sensor 17 is used to detect the gas flow on the surface of the test head 22 .
[0071] It is understood that for an automatically operated test head cleaning apparatus 1, position detection sensor 15 is used to detect whether cleaning device 12 and drying device 13 are sufficiently close to test head 22 and located in the correct operating position. Humidity sensor 16 is used to detect the surface humidity of test head 22 to determine whether the drying process of test head 22 has been completed. Flow sensor 17 is used to detect the gas flow rate on the surface of test head 22 to determine whether the drying process of test head 22 has been completed. If the test head 22 cleaning apparatus 1 has begun operation but cleaning device 12 and drying device 13 are not in the correct position around test head 22, or if the test head 22 surface is not subjected to the blowing process, controller 18 controls alarm device 19 to sound an alarm, notifying the operator of a malfunction in test head cleaning apparatus 1. Alternatively, if humidity sensor 16 detects that the surface humidity of test head 22 has reached the specified level while test head cleaning apparatus 1 is still cleaning, controller 18 controls alarm device 19 to sound an alarm, notifying the operator that the test head 22 cleaning process has been completed.
[0072] The alarm device 19 may be a buzzer or an audible and visual alarm.
[0073] This embodiment provides a position detection sensor 15, a humidity sensor 16, a flow sensor 17, and an alarm device 19, so that when the test head cleaning device 1 is in automatic operation, an alarm can be automatically issued to alert the operator when a device failure occurs, without excessive manual intervention, thereby improving the degree of automation of the test head cleaning device 1.
[0074] In some embodiments, the cleaning device 12 of this embodiment includes a robotic arm and a cleaning cup.
[0075] The robot arm is rotatably mounted on the base 11 to move the cleaning cup to the lower side of the test head 22 . The cleaning cup is used to hold a cleaning liquid.
[0076] As will be appreciated, this embodiment utilizes a cleaning cup and a robotic arm to clean test head 22. After completing the freezing point test on test head 22, test head 22 is removed from the test tube. The robotic arm then moves the cleaning cup to the underside of test head 22, inserting test head 22 into the cleaning liquid within the cup. The robotic arm then gently shakes the cup, causing the cleaning liquid within to slosh and clean the outer surface of test head 22.
[0077] Correspondingly, a waste liquid bucket is placed outside the cleaning cup. After the cleaning process of the test head 22 is completed and the test head 22 is cleaned and dried, the robotic arm moves the cleaning cup to the top of the waste liquid bucket and flips the cup mouth of the cleaning cup to allow the waste liquid to be poured into the waste liquid bucket.
[0078] Second, as Figure 1 and Figure 4As shown, this embodiment provides a freezing point detection system, including: a freezing point meter 2 and the above test head cleaning device 1.
[0079] The cryostat 2 includes a body 21 and a test head 22 . The test head 22 is movably mounted on the body 21 .
[0080] When the test head 22 completes one freezing point test, the test head 22 moves upward and extends out of the body 21 , and the test head cleaning device 1 cleans the test head 22 .
[0081] Specifically, since the ice point detection system includes a test head cleaning device 1, and the specific structure of the test head cleaning device 1 refers to the above embodiment, the ice point detection system shown in this embodiment includes all the technical solutions of the above embodiment. Therefore, it has at least all the beneficial effects achieved by all the technical solutions of the above embodiment, which will not be repeated here one by one.
[0082] It is understood that when the cryostat 2 performs a freezing point test on a sample, some sample remains on the test head 22 after the first freezing point test. The test head cleaning device 1 is used to clean and dry the test head 22. During the test, the test head 22 descends relative to the body 21 and enters the test tube to test the freezing point. After the test is completed, the test head 22 ascends relative to the body 21 to extend out of the test tube. The test head cleaning device 1 adjusts its position relative to the test head 22 and cleans the test head 22. The test head cleaning device 1 can quickly clean the test head 22 for the next freezing point test. The entire process is automated, improving the efficiency of freezing point testing.
[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A test head cleaning device, characterized in that: include: base, washing unit and drying unit; The cleaning device and the drying device can be lifted and lowered on the base; The cleaning device is used to clean the test head; The drying device comprises: a second bracket, an air blowing head, a compressed air source and a hot air blower; The second bracket is liftably mounted on the base, the compressed air source is connected to the air blowing head, the air blowing head is rotatably mounted on the second bracket, and the air blowing head is disposed toward the test head; the air outlet of the hot air blower is installed on the second bracket and disposed toward the test head.
2. The test head cleaning device according to claim 1, wherein: The cleaning device comprises: a first bracket and a spray head; The first bracket is movably mounted on the base, the shower head is rotatably mounted on the first bracket, and the shower head is disposed toward the test head.
3. The test head cleaning device according to claim 2, wherein: The angle between the shower head and the test head is 45°.
4. The test head cleaning device according to claim 2, wherein: Also includes: Recovery device; The recovery device includes: a collection bucket, a drainage pipeline and a recovery tank; The collecting hopper is disposed around the lower side of the test head. One end of the drainage pipeline is communicated with the collecting hopper, and the other end of the drainage pipeline is communicated with the recovery tank.
5. The test head cleaning device according to claim 4, wherein: One end of the collecting hopper connected to the drainage pipeline is funnel-shaped.
6. The test head cleaning device according to claim 1, wherein: The hot air blower is a hair dryer, and the air flow of the hair dryer blows from top to bottom along the test head.
7. The test head cleaning device according to claim 6, wherein: The air outlet of the air blowing head is in a frustum shape, and the large end of the air blowing head faces the test head.
8. The test head cleaning device according to claim 1, wherein: Also includes: Position detection sensors, humidity sensors, flow sensors, controllers and alarm devices; The position detection sensor, the humidity sensor, the flow sensor and the alarm device are all connected to the controller; The position detection sensor is used to detect the positions of the cleaning device and the drying device relative to the test head, the humidity sensor is used to detect the surface humidity of the test head, and the flow sensor is used to detect the gas flow on the surface of the test head.
9. The test head cleaning device according to claim 1, wherein: The cleaning device includes a robotic arm and a cleaning cup; The robot arm is rotatably disposed on the base to move the cleaning cup to the lower side of the test head. The cleaning cup is used to hold liquid for cleaning.
10. A freezing point detection system, characterized in that: include: An ice point meter and a test head cleaning device as claimed in any one of claims 1 to 9; The cryostat comprises a body and a test head, wherein the test head is movably arranged on the body; When the test head completes a freezing point test, the test head moves upward and extends out of the body, and the test head cleaning device cleans the test head.