A test cup lid structure for low temperature viscosity measurement

Abstract

The utility model discloses a test cup cover structure for low temperature viscosity measurement, include: a test cup cover, the test cup cover has a inner hole on the test cup, is provided with a necking flange on the hole wall top of inner hole, and this necking flange is used to press tin foil paper on test cup, is evenly distributed and is set up with several square holes on the hole wall of inner hole and is provided with the recess of placing spring on the hole wall outer periphery surface of inner hole, an open spring ring of carding into recess, open spring ring forces the hole wall waist of test cup cover to contract, so that test cup cover is tightened on test cup, an oil suction nozzle, the oil suction nozzle is used to break aluminum foil paper, and lets oil suction nozzle enter test cup interior and carry out sample suction. Have simple structure, low -cost advantage.

Description

Technical Field

[0001] This invention relates to the field of test cup technology, and in particular to a test cup lid structure for low-temperature viscosity measurement. Background Technology

[0002] Many petroleum products and some non-petroleum substances are used as lubricants, and the proper functioning of equipment often depends on the appropriate viscosity of the liquid used. Furthermore, the viscosity of many petroleum fuels is crucial for optimizing storage, operation, and operating conditions.

[0003] Currently, there are relatively few fully automated instruments for measuring low-temperature viscosity in China, especially for highly volatile oils, where automation is not possible. Utility Model Content

[0004] The technical problem this invention aims to solve is the inability to simultaneously test multiple samples of highly volatile oils in automated instruments. This invention proposes a test cup cap structure for low-temperature viscosity measurement. Using this test cup cap, multiple samples can be placed on the test turntable, thus resolving the problem of abnormal test results caused by sample evaporation.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A test cup lid structure for low-temperature viscosity measurement includes: A test cup lid has an inner hole fitted onto the test cup. A constricted flange is provided at the top of the inner hole wall for pressing aluminum foil onto the test cup. Several square holes are evenly distributed on the inner hole wall, and a groove for placing a spring is provided on the outer circumferential surface of the inner hole wall. An open spring ring is inserted into the groove, which forces the waist of the hole wall of the test cup cover to contract, so that the test cup cover is tightened on the test cup; An oil suction nozzle is used to puncture the aluminum foil paper, allowing the nozzle to enter the test cup for sample suction.

[0006] In a preferred embodiment of this invention, there is a slightly raised chamfer on the bottom left side of the oil suction nozzle to pierce the aluminum foil.

[0007] In a preferred embodiment of this utility model, the test cup lid is made of polytetrafluoroethylene.

[0008] Due to the adoption of the above technical solution, the method of use of this utility model is as follows: First, place the aluminum foil over the test cup, install the spring on the test cup lid, and then place the test cup lid over the test cup covered with aluminum foil, which can seal the sample. Next, place the test cup into the test cup base. During the test, the top rod holds the test cup base and pushes the test cup upwards. The bottom of the suction nozzle protrudes, which can puncture the aluminum foil to allow the suction nozzle to reach the bottom of the test cup, and then the test can be carried out. Furthermore, since a large amount of cleaning reagent is used in the test, the test cup lid is made of polytetrafluoroethylene (PTFE), allowing the test cup lid to be reused. Only the aluminum foil needs to be replaced each time, which also allows for good control over the consumption of test consumables.

[0009] This invention primarily addresses the problem of the inability to simultaneously test multiple samples of highly volatile oils in automated instruments. Using the test cup lid of this invention, multiple samples can be placed on the test turntable, resolving the issue of abnormal test results caused by sample evaporation. Furthermore, using our accompanying instrument enables fully automated low-temperature viscosity measurement of highly volatile oils, offering advantages such as simple structure and low cost. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the utility model in use.

[0011] Figure 2 This is one of the structural schematic diagrams of the test cup lid of this utility model.

[0012] Figure 3 This is the second schematic diagram of the structure of the test cup lid of this utility model.

[0013] Figure 4 This is the third schematic diagram of the structure of the test cup lid of this utility model.

[0014] Figure 5 This is one of the schematic diagrams of the spring of this utility model.

[0015] Figure 6 This is the second schematic diagram of the spring of this utility model.

[0016] Figure 7 This is a schematic diagram of the oil suction nozzle of this utility model. Detailed Implementation

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0018] like Figures 2 to 4 The test cup lid 100 shown is made of polytetrafluoroethylene, which is both corrosion-resistant and provides good elasticity. The test cup lid 100 has an inner hole 110 on the test cup 200, and a constricted flange 120 is provided at the top of the hole wall of the inner hole 110. The constricted flange 120 is used to press the aluminum foil 300 onto the test cup 200.

[0019] Six square holes 130 are evenly distributed on the wall of the inner hole 110. A groove 140 for placing the spring is provided on the waist of the outer circumference of the wall of the inner hole 110. The square holes 130 can increase the elasticity of the waist of the test cup lid 100, and the groove 140 can fix the position of the spring.

[0020] like Figure 5 and Figure 6 The inner diameter of the spring 400 is smaller than the size of the groove 140 in the waist of the test cup lid 100, allowing the waist of the test cup lid 100 to be tightened by the spring 400, thus achieving the purpose of pressing the aluminum foil 300 later. The spring 400 has a notch, which ensures that it can be slightly stretched and fitted into the groove 140 in the waist of the test cup lid 100 during assembly.

[0021] like Figure 1 The bottom left of the oil suction nozzle 500 has a slightly raised chamfer 510, which can puncture the aluminum foil 200 when the test cup 200 moves upward, allowing the oil suction nozzle 500 to enter the test cup for sampling.

[0022] like Figure 1 As shown, after the oil sample to be tested is placed in the test cup 200, aluminum foil 300 is tightly attached to the rim of the test cup 200, with its lower edge exceeding the height of the test cup lid 100. The assembled test cup lid 100 is then placed on top of the aluminum foil 300, and the aluminum foil 300 is pressed tightly by the spring 400, ensuring that the aluminum foil 300 adheres firmly to the test cup 200 and does not slide due to being pushed up by the suction nozzle 500 during the upward process. The push rod 600 pushes the test cup base 700 upward, allowing the suction nozzle 500 to pierce the aluminum foil 300. After reaching the desired position, the test is conducted.

[0023] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A test cup lid structure for low-temperature viscosity measurement, characterized in that, include: A test cup lid has an inner hole fitted onto the test cup. A constricted flange is provided at the top of the inner hole wall for pressing aluminum foil onto the test cup. Several square holes are evenly distributed on the inner hole wall, and a groove for placing a spring is provided on the outer circumferential surface of the inner hole wall. An open spring ring is inserted into the groove, which forces the waist of the hole wall of the test cup cover to contract, so that the test cup cover is tightened on the test cup; An oil suction nozzle is used to puncture the aluminum foil paper, allowing the nozzle to enter the test cup for sample suction.

2. The test cup lid structure for low-temperature viscosity measurement according to claim 1, characterized in that, There is a slightly raised chamfer on the bottom left of the oil suction nozzle to pierce the aluminum foil.

3. The test cup lid structure for low-temperature viscosity measurement according to claim 1, characterized in that, The test cup lid is made of polytetrafluoroethylene.

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