A lubricating oil flash point tester
By introducing a rotating cleaning mechanism of wiping sponge and electric heating rod into the lubricating oil flash point tester, the problem of lubricating oil stains on the inner wall of the test cylinder was solved, achieving cleanliness of the test cylinder and uniformity of lubricating oil, thus improving the accuracy and efficiency of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIBET JIEKUN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-29
AI Technical Summary
After use, existing lubricating oil flash point testers leave a large amount of lubricating oil stains on the inner wall of the test cylinder, affecting the cleanliness of the test cylinder and the accuracy of subsequent tests.
A flash point tester for lubricating oil was designed. The tester uses a wiping sponge to contact the inner wall of the test cylinder and a rotating cleaning mechanism consisting of an electric heating rod and a scraper. Combined with the use of an oil cleaning solution, the inner wall of the test cylinder is cleaned. At the same time, the electric heating rod is used to stir and heat the lubricating oil.
It effectively cleans the lubricating oil stains on the inner wall of the test cylinder, ensuring the cleanliness of the test cylinder and ensuring accuracy in the next use. Stirring and heating also improve the uniformity of the lubricating oil and the efficiency of the test.
Smart Images

Figure CN224303616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of lubricating oil testing equipment, and in particular to a lubricating oil flash point tester. Background Technology
[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It is generally composed of two parts: base oil and additives. Lubricating oil is a technology-intensive product, a complex mixture of hydrocarbons, which mainly plays the roles of lubrication, cooling, rust prevention, cleaning, sealing and buffering.
[0003] A search revealed that Chinese patent application number 202122058727.3 discloses "a flash point tester for lubricating oil, comprising a test frame and an igniter fixedly mounted on the upper end of the test frame, a test cylinder fixedly mounted on the inner side of the test frame, an oil reservoir fixedly mounted on the upper end of the test frame near the igniter, an oil pipe fixedly connected between the oil reservoir and the test cylinder, an end cap fixedly mounted on the upper end of the test cylinder, a defoaming plate provided on the inner side of the test cylinder, liquid-passing defoaming holes spaced apart on the surface of the defoaming plate, and a defoaming rod fixedly mounted on the upper end of the defoaming plate." However, after use, the inner wall of the test cylinder of the aforementioned flash point tester is covered with a large amount of lubricating oil stains. These stains not only affect the cleanliness of the test cylinder but also affect the accuracy of the next flash point test. Therefore, in order to solve this problem, a flash point tester for lubricating oil is proposed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flash point tester for lubricating oil.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A flash point tester for lubricating oil includes a test cylinder. An installation shaft is rotatably mounted inside the test cylinder. Several electric heating rods are mounted on the outer wall of the installation shaft. Scrapers are mounted at the ends of the electric heating rods. A wiping sponge is mounted on the side of the scraper away from the installation shaft, and the wiping sponge contacts the inner wall of the test cylinder. An oil stain cleaning fluid tank is mounted on the side of the scraper away from the wiping sponge. The oil stain cleaning fluid tank is connected to a delivery pipe. The end of the delivery pipe is inserted into the wiping sponge. A liquid pump is installed inside the delivery pipe. An L-shaped plate is mounted on the top of the test cylinder, and an ignition nozzle is mounted at the bottom of the L-shaped plate, positioned above the test cylinder.
[0007] Preferably, a motor is installed at the bottom of the test cylinder, and the output shaft of the motor is inserted into the test cylinder and connected to the mounting shaft.
[0008] Preferably, the bottom wall of the test cylinder has a through hole, a sealed bearing is installed in the through hole, the output shaft of the motor is located in the inner ring of the sealed bearing, a protective shell is installed at the bottom of the test cylinder, and the motor is located in the protective shell.
[0009] Preferably, an mounting plate is mounted on the outer wall of the mounting shaft, and the end of the electric heating rod away from the scraper is mounted on the side of the mounting plate.
[0010] Preferably, a connecting block is installed at the end of the electric heating rod away from the mounting shaft, and a scraper is installed on the side of the connecting block away from the electric heating rod.
[0011] Preferably, a fixing rod is installed on the side of the connecting block away from the electric heating rod, and the end of the fixing rod away from the connecting block is installed on the side of the scraper.
[0012] Preferably, the bottom of the test cylinder is equipped with a support leg, and the bottom end of the support leg is equipped with a support ring, and the support ring is provided with a plurality of mounting holes.
[0013] Preferably, the oil stain cleaning liquid tank is filled with oil stain cleaning liquid, and the bottom of the test cylinder is connected to a discharge port, which is equipped with an electronic valve.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, the wiping sponge comes into contact with the inner wall of the test cylinder, and the wiping sponge rotates and generates friction with the inner wall of the test cylinder. At the same time, the wiping sponge can be used to apply oil cleaning solution to the inner wall of the test cylinder and clean the residual lubricating oil on the inner wall of the test cylinder. This makes it easier to clean the residual lubricating oil on the inner wall of the test cylinder, ensuring the cleanliness of the inner wall of the test cylinder and ensuring that the test cylinder is in a clean state for the next use.
[0016] 2: In this utility model, the rotation of the mounting shaft can drive the electric heating rod to rotate and stir the lubricating oil in the test cylinder, thereby stirring the lubricating oil in the test cylinder evenly and preventing the lubricating oil from settling in the test cylinder. While stirring the lubricating oil in the test cylinder evenly, the electric heating rod can also heat the lubricating oil in the test cylinder. It can complete the heating of the lubricating oil at the same time as stirring it in the test cylinder. Attached Figure Description
[0017] Figure 1 This is a first-view structural schematic diagram of a lubricating oil flash point tester proposed in this utility model.
[0018] Figure 2 This is a structural schematic diagram from a second perspective of a lubricating oil flash point tester proposed in this utility model.
[0019] Figure 3This is a schematic diagram of the structure of the test cylinder of a lubricating oil flash point tester proposed in this utility model;
[0020] Figure 4 This is a schematic diagram showing the connection between the mounting shaft and the electric heating rod of a lubricating oil flash point tester proposed in this utility model;
[0021] Figure 5 This is a schematic diagram showing the connection between the fixing rod and the scraper of a lubricating oil flash point tester proposed in this utility model.
[0022] In the diagram: 1. Test cylinder; 2. Support leg; 3. Support ring; 4. Mounting hole; 5. Sealed bearing; 6. Mounting shaft; 7. Electric heating rod; 8. L-shaped plate; 9. Motor; 10. Protective shell; 11. Discharge port; 12. Ignition nozzle; 13. Connecting block; 14. Scraper; 15. Wiping sponge; 16. Oil stain cleaning liquid tank; 17. Delivery pipe; 18. Liquid pump; 19. Fixing rod; 20. Mounting plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-5 A flash point tester for lubricating oil includes a test cylinder 1. A mounting shaft 6 is rotatably mounted inside the test cylinder 1. Several electric heating rods 7 are mounted on the outer wall of the mounting shaft 6. A scraper 14 is mounted at the end of each electric heating rod 7. A wiping sponge 15 is mounted on the side of the scraper 14 away from the mounting shaft 6. The wiping sponge 15 is in contact with the inner wall of the test cylinder 1. An oil stain cleaning liquid tank 16 is mounted on the side of the scraper 14 away from the wiping sponge 15. The oil stain cleaning liquid tank 16 is connected to a delivery pipe 17. The end of the delivery pipe 17 is inserted into the wiping sponge 15. A liquid pump 18 is installed inside the delivery pipe 17. An L-shaped plate 8 is mounted on the top of the test cylinder 1. An ignition nozzle 12 is mounted on the bottom of the L-shaped plate 8. The ignition nozzle 12 is located above the test cylinder 1.
[0025] As a technical optimization of this utility model, a motor 9 is installed at the bottom of the test cylinder 1, and the output shaft of the motor 9 is inserted into the test cylinder 1 and connected to the mounting shaft 6.
[0026] As a technical optimization of this utility model, a through hole is provided in the bottom wall of the test cylinder 1, and a sealed bearing 5 is installed in the through hole. The output shaft of the motor 9 is located in the inner ring of the sealed bearing 5. A protective shell 10 is installed at the bottom of the test cylinder 1, and the motor 9 is located in the protective shell 10. The protective shell 10 can provide protection for the motor 9.
[0027] As a technical optimization of this utility model, an mounting plate 20 is installed on the outer wall of the mounting shaft 6, and the end of the electric heating rod 7 away from the scraper 14 is installed on the side of the mounting plate 20. The mounting plate 20 can facilitate the connection between the electric heating rod 7 and the mounting shaft 6.
[0028] As a technical optimization of this utility model, a connecting block 13 is installed at the end of the electric heating rod 7 away from the mounting shaft 6, and a scraper 14 is installed on the side of the connecting block 13 away from the electric heating rod 7.
[0029] As a technical optimization of this utility model, a fixing rod 19 is installed on the side of the connecting block 13 away from the electric heating rod 7, and the end of the fixing rod 19 away from the connecting block 13 is installed on the side of the scraper 14.
[0030] As a technical optimization of this utility model, a support leg 2 is installed at the bottom of the test cylinder 1, and a support ring 3 is installed at the bottom end of the support leg 2. Several mounting holes 4 are opened on the support ring 3. Through the cooperation of the support leg 2 and the support ring 3, the device can be easily supported.
[0031] As a technical optimization of this utility model, the oil stain cleaning liquid tank 16 is filled with oil stain cleaning liquid, and the bottom of the test cylinder 1 is connected to the discharge port 11. An electronic valve is installed in the discharge port 11, which can facilitate the discharge of the lubricating oil that has been tested in the test cylinder 1.
[0032] When using this invention, if a flash point test is required on the lubricating oil, the lubricating oil to be tested is first poured into the test cylinder 1.
[0033] At this time, the motor 9 is started, and the output shaft of the motor 9 can drive the mounting shaft 6 to rotate. The rotation of the mounting shaft 6 can drive the electric heating rod 7 to rotate and stir the lubricating oil in the test cylinder 1, thereby stirring the lubricating oil in the test cylinder 1 evenly and preventing the lubricating oil from settling in the test cylinder 1. While stirring the lubricating oil in the test cylinder 1 evenly, the electric heating rod 7 can also heat the lubricating oil in the test cylinder 1. It can complete the heating of the lubricating oil while stirring it in the test cylinder 1.
[0034] The steam generated by the heating of the lubricating oil in the test cylinder 1 will float upwards. At this time, the ignition can be performed using the igniter 12. If the igniter 12 produces a flash, the temperature of the lubricating oil at the time of the flash can be recorded.
[0035] Opening the discharge port 11 allows the lubricating oil that has been tested in the test cylinder 1 to be discharged.
[0036] When it is necessary to clean the lubricating oil adhering to the inner wall of the test cylinder 1, firstly, start the motor 9. The output shaft of the motor 9 drives the mounting shaft 6 to rotate, and the rotation of the mounting shaft 6 drives the electric heating rod 7 to rotate, which in turn causes the scraper 14 to drive the wiping sponge 15 to rotate. The centrifugal force generated by the rotation of the wiping sponge 15 can be used to throw out the lubricating oil adsorbed in the wiping sponge 15. After the wiping sponge 15 has thrown out the lubricating oil adsorbed in it, start the liquid pump 18. The liquid pump 18 can then draw the oil stain cleaning solution in the oil stain cleaning solution tank 16 into the delivery pipe 17. The oil cleaning solution entering the delivery pipe 17 can then enter the wiping sponge 15. By wiping the sponge 15 in contact with the inner wall of the test cylinder 1 and by rotating the sponge 15 to generate friction with the inner wall of the test cylinder 1, the oil cleaning solution can be applied to the inner wall of the test cylinder 1 while the sponge 15 cleans the residual lubricating oil on the inner wall of the test cylinder 1. This facilitates the cleaning of the residual lubricating oil on the inner wall of the test cylinder 1, ensuring the cleanliness of the inner wall of the test cylinder 1 and ensuring that the test cylinder 1 is in a clean state for the next use.
[0037] After cleaning the inner wall of the test cylinder 1, clean water is injected into the test cylinder 1. The clean water is stirred by the electric heating rod 7 so that it washes the inner wall and bottom wall of the test cylinder 1. Combined with the oil stain cleaning solution in the wiping sponge 15, the inner wall and bottom wall of the test cylinder 1 can be cleaned, thus completing the cleaning treatment of the inner wall and bottom wall of the test cylinder 1.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A flash point tester for lubricating oil, comprising a test cylinder (1), characterized in that, The test cylinder (1) is rotatably installed with an installation shaft (6). Several electric heating rods (7) are installed on the outer wall of the installation shaft (6). A scraper (14) is installed at the end of the electric heating rod (7). A wiping sponge (15) is installed on the side of the scraper (14) away from the installation shaft (6). The wiping sponge (15) is in contact with the inner wall of the test cylinder (1). An oil stain cleaning liquid tank (16) is installed on the side of the scraper (14) away from the wiping sponge (15). The oil stain cleaning liquid tank (16) is connected to a delivery pipe (17). The end of the delivery pipe (17) is inserted into the wiping sponge (15). A liquid pump (18) is installed in the delivery pipe (17). An L-shaped plate (8) is installed on the top of the test cylinder (1). An ignition nozzle (12) is installed at the bottom of the L-shaped plate (8). The ignition nozzle (12) is located above the test cylinder (1).
2. The lubricating oil flash point tester according to claim 1, characterized in that, A motor (9) is installed at the bottom of the test cylinder (1). The output shaft of the motor (9) is inserted into the test cylinder (1) and connected to the mounting shaft (6).
3. The lubricating oil flash point tester according to claim 2, characterized in that, The test cylinder (1) has a through hole in its inner bottom wall, and a sealed bearing (5) is installed in the through hole. The output shaft of the motor (9) is located in the inner ring of the sealed bearing (5). A protective shell (10) is installed at the bottom of the test cylinder (1), and the motor (9) is located in the protective shell (10).
4. The lubricating oil flash point tester according to claim 1, characterized in that, An mounting plate (20) is mounted on the outer wall of the mounting shaft (6), and the end of the electric heating rod (7) away from the scraper (14) is mounted on the side of the mounting plate (20).
5. A flash point tester for lubricating oil according to claim 1, characterized in that, A connecting block (13) is installed at the end of the electric heating rod (7) away from the mounting shaft (6), and a scraper (14) is installed on the side of the connecting block (13) away from the electric heating rod (7).
6. A flash point tester for lubricating oil according to claim 5, characterized in that, A fixing rod (19) is installed on the side of the connecting block (13) away from the electric heating rod (7), and the end of the fixing rod (19) away from the connecting block (13) is installed on the side of the scraper (14).
7. A flash point tester for lubricating oil according to claim 1, characterized in that, The test cylinder (1) is equipped with a support leg (2) at the bottom, and a support ring (3) is installed at the bottom end of the support leg (2). Several mounting holes (4) are opened on the support ring (3).
8. A flash point tester for lubricating oil according to claim 1, characterized in that, The oil stain cleaning liquid tank (16) is filled with oil stain cleaning liquid, and the bottom of the test cylinder (1) is connected to the discharge port (11), which is equipped with an electronic valve.