Stirrer for kinematic viscosity tester

Abstract

The utility model relates to the technical field of stirrers of kinematic viscosity testers, in particular to a stirrer for a kinematic viscosity tester, which comprises a connecting sleeve, the stirring device further comprises main stirring blades, extension grooves, a connecting shaft, auxiliary stirring blades, sliding grooves, open grooves, limiting plates and springs. The three main stirring blades are arranged on the periphery of a connecting sleeve at equal intervals. The auxiliary stirring blade is pulled in the direction away from the connecting sleeve through the handle until the inner wall of the end, close to the connecting sleeve, of the sliding groove is attached to the connecting shaft, at the moment, the limiting plate is moved out of the interior of the extension groove, and the limiting plate is pushed to move in the direction away from the extension groove through the characteristics of the spring; when the limiting plate moves in the middle, the telescopic rod is driven to extend until the telescopic rod extends to the longest, so that the limiting plate is positioned at one end, far away from the connecting sleeve, of the main stirring blade, and the auxiliary stirring blade is prevented from moving into the extension groove again through the limiting plate, so that the auxiliary stirring blade extends to enlarge the stirring area.

Description

Technical Field

[0001] This utility model relates to the field of stirrers for kinematic viscosity meters, and in particular to a stirrer for a kinematic viscosity meter. Background Technology

[0002] The quality supervision center's oil testing laboratory currently has one kinematic viscometer, mainly used for testing the viscosity of various oil products. When conducting tests, we first need to stir and heat the water poured into the meter to achieve a constant temperature control state for testing. Due to the small size of the stirrer blades, it takes 20 minutes to stir the water to a uniform temperature for each test. At the same time, four oil samples can be tested, which takes an average of 40 minutes, resulting in low testing efficiency. Therefore, it is necessary to extend the stirring blades.

[0003] Common stirrers used in kinematic viscosity meters only include stirring function, which can stir oil, but lack extension function. They cannot guarantee that the area of ​​the stirring blades can be adjusted according to the oil volume. When the oil volume is large, the stirrer blade area is too small, which can lead to insufficient stirring of the oil and affect the detection efficiency.

[0004] Therefore, to address the lack of extension function in the aforementioned stirrers used in kinematic viscosity meters, a new stirrer for kinematic viscosity meters can be designed. By pulling the auxiliary stirring blade away from the connecting sleeve using a handle, until the inner wall of the sliding groove near the connecting sleeve is in contact with the connecting shaft, the limiting plate moves out of the extension groove. The spring's properties push the limiting plate further away from the groove. As the limiting plate moves, it causes the telescopic rod to extend until it reaches its maximum length. Thus, the limiting plate is located at the end of the main stirring blade away from the connecting sleeve. The limiting plate prevents the auxiliary stirring blade from moving further into the extension groove, thereby extending the auxiliary stirring blade to increase the stirring area. Utility Model Content

[0005] To overcome the problem that common stirrers used in kinematic viscosity meters lack extension function and cannot guarantee that the stirring blade area can be adjusted according to the oil volume, it is easy for the stirrer blade area to be too small when the oil volume is large, which makes it impossible to fully stir the oil and affect the detection efficiency.

[0006] The technical solution of this utility model is as follows: a stirrer for a kinematic viscosity meter, including a connecting sleeve; it also includes a main stirring blade, an extension groove, a connecting shaft, a secondary stirring blade, a sliding groove, a slot, a limiting plate, and springs. Three main stirring blades are evenly spaced around the connecting sleeve. An extension groove is formed through the top of the main stirring blade on the side away from the connecting sleeve. Two connecting shafts are symmetrically arranged in the middle of the two sides of the extension groove away from the connecting sleeve. A secondary stirring blade is arranged inside the extension groove. Two sliding grooves are symmetrically formed in the middle of the two sides of the secondary stirring blade corresponding to the positions of the connecting shafts. The connecting shaft is slidably connected to the sliding grooves. Four slots are symmetrically formed in the two sides of the secondary stirring blade near the connecting sleeve corresponding to the positions of the sliding grooves. A limiting plate is arranged inside the slots. Three springs are evenly spaced on the side of the limiting plate away from the main stirring blade.

[0007] Preferably, the auxiliary stirring blade is pulled away from the connecting sleeve by the handle until the inner wall of the sliding groove near the connecting sleeve is in contact with the connecting shaft. At this time, the limiting plate moves out from the inside of the extension groove. The spring pushes the limiting plate to move away from the groove. When the limiting plate moves, it drives the telescopic rod to extend until the telescopic rod extends to its maximum length. In this way, the limiting plate is located at the end of the main stirring blade away from the connecting sleeve. The limiting plate prevents the auxiliary stirring blade from moving into the extension groove again. This extends the auxiliary stirring blade to increase the stirring area. This solves the problem that common stirrers used in kinematic viscosity meters only have the stirring function and can stir the oil, but lack the extension function. They cannot guarantee that the stirring blade area can be adjusted according to the oil volume. When the oil volume is large, the stirring blade area is too small, which makes it impossible to stir the oil comprehensively and affects the detection efficiency.

[0008] Preferably, three telescopic rods are provided at equal intervals on the side of the limiting plate away from the main stirring blade, corresponding to the position of the spring. The ends of the telescopic rods and the springs away from the limiting plate are connected to the inner wall of the slot.

[0009] Preferably, a handle is provided in the middle of the end of the secondary stirring blade away from the connecting sleeve, and a connecting block is provided on the top of the secondary stirring blade near the connecting sleeve.

[0010] Preferably, a cross bolt is threaded on the top of the connecting block near the connecting sleeve, and a first internal threaded hole is opened on the top of the main stirring blade near the connecting sleeve corresponding to the position of the cross bolt, with the bottom end of the cross bolt screwed into the interior of the first internal threaded hole.

[0011] Preferably, a hexagonal bolt is threaded to the center of the front side of the connecting sleeve, and a drive shaft is provided above the connecting sleeve. A second internal threaded hole is provided at the bottom of the front side of the drive shaft corresponding to the position of the hexagonal bolt.

[0012] Preferably, the bottom end of the drive shaft is inserted into the interior of the connecting sleeve, and the connecting sleeve is screwed into the interior of the second internal threaded hole through the rear end of the hexagonal bolt to connect with the drive shaft.

[0013] Preferably, a bushing is provided at the top of the drive shaft, and a connecting hole is provided at the bottom center of the front side of the bushing.

[0014] The beneficial effects of this utility model are:

[0015] 1. Pull the auxiliary stirring blade away from the connecting sleeve by the handle until the inner wall of the sliding groove near the connecting sleeve is in contact with the connecting shaft. At this time, the limiting plate moves out from the inside of the extension groove. The spring pushes the limiting plate to move away from the groove. When the limiting plate moves, it drives the telescopic rod to extend until the telescopic rod extends to its maximum length. In this way, the limiting plate is located at the end of the main stirring blade away from the connecting sleeve. The limiting plate prevents the auxiliary stirring blade from moving into the extension groove again. This extends the auxiliary stirring blade to increase the stirring area. This solves the problem that common stirrers used in kinematic viscosity meters only have the stirring function and can stir oil, but lack the extension function. They cannot guarantee that the stirring blade area can be adjusted according to the oil volume. When the oil volume is large, the stirring blade area is too small, which makes it impossible to stir the oil comprehensively and affects the detection efficiency. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of a stirrer for a kinematic viscosity meter according to this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the structure of a stirrer drive shaft for a kinematic viscosity meter according to this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the structure of a stirrer connecting sleeve for a kinematic viscosity meter according to this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the main stirring blade structure of a stirrer for a kinematic viscosity meter according to this utility model.

[0020] Figure 5 The diagram shown is a schematic representation of the structure of the auxiliary stirring blade of a stirrer for a kinematic viscosity meter according to this utility model.

[0021] Figure 6 The diagram shown is a grooved structure of a stirrer for a kinematic viscosity meter according to this invention.

[0022] Explanation of reference numerals in the attached drawings: 1. Connecting sleeve; 2. Main stirring blade; 3. Extension groove; 4. Connecting shaft; 5. Secondary stirring blade; 6. Sliding groove; 7. Slot; 8. Limiting plate; 9. Telescopic rod; 10. Spring; 11. Handle; 12. Connecting block; 13. Cross bolt; 14. First internal threaded hole; 15. Hex bolt; 16. Drive shaft; 17. Second internal threaded hole; 18. Bushing; 19. Connecting hole. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please see Figures 1-6 This utility model provides an embodiment: a stirrer for a kinematic viscosity meter, including a connecting sleeve 1; it also includes a main stirring blade 2, an extension groove 3, a connecting shaft 4, a secondary stirring blade 5, a sliding groove 6, slots 7, a limiting plate 8, and springs 10. Three main stirring blades 2 are evenly spaced around the connecting sleeve 1. An extension groove 3 is formed through the top of the main stirring blade 2 on the side away from the connecting sleeve 1. Two connecting shafts 4 are symmetrically arranged in the middle of the two sides of the extension groove 3 away from the connecting sleeve 1. The secondary stirring blade 5 is arranged inside the extension groove 3. Two sliding grooves 6 are symmetrically formed in the middle of the two sides of the secondary stirring blade 5 corresponding to the positions of the connecting shafts 4. The connecting shafts 4 are slidably connected to the sliding grooves 6. Four slots 7 are symmetrically formed in the two sides of the secondary stirring blade 5 near the connecting sleeve 1, corresponding to the positions of the sliding grooves 6. A limiting plate 8 is arranged inside the slots 7. Three springs 10 are evenly spaced on the side of the limiting plate 8 away from the main stirring blade 2. By... Hand 11 pulls the auxiliary stirring blade 5 away from the connecting sleeve 1 until the inner wall of the sliding groove 6 near the connecting sleeve 1 is in contact with the connecting shaft 4. At this time, the limiting plate 8 moves out from the inside of the extension groove 3. The characteristic of the spring 10 pushes the limiting plate 8 to move away from the groove 7. When the limiting plate 8 moves, it drives the telescopic rod 9 to extend until the telescopic rod 9 extends to its longest length. In this way, the limiting plate 8 is located at the end of the main stirring blade 2 away from the connecting sleeve 1. The limiting plate 8 blocks and prevents the auxiliary stirring blade 5 from moving into the extension groove 3 again. This extends the auxiliary stirring blade 5 to increase the stirring area. This solves the problem that the stirrers used in common kinematic viscosity testers only have the stirring function and can stir the oil, but lack the extension function. They cannot guarantee that the area of ​​the stirring blade can be adjusted according to the oil volume. When the oil volume is large, the stirring blade area is too small, which makes it impossible to stir the oil comprehensively and affects the detection efficiency.

[0025] Please see Figures 2-6In this embodiment, a hexagonal bolt 15 is threaded to the middle of the front side of the connecting sleeve 1. A drive shaft 16 is provided above the connecting sleeve 1. A second internal threaded hole 17 is provided at the bottom of the front side of the drive shaft 16 corresponding to the position of the hexagonal bolt 15. The bottom end of the drive shaft 16 is inserted into the interior of the connecting sleeve 1. The connecting sleeve 1 is screwed into the interior of the second internal threaded hole 17 through the rear end of the hexagonal bolt 15 and connected to the drive shaft 16. A bushing 18 is provided at the top of the drive shaft 16. A connecting hole 19 is provided at the bottom of the middle of the front side of the bushing 18. When it is necessary to retract the auxiliary stirring blade 5, the limiting plate 8 is pushed into the groove 7. At this time, the spring 10 is compressed, and the telescopic rod 9 will retract until the limiting plate 8 is completely inside the groove 7. Then, the auxiliary stirring blade 5 is pushed into the extension groove 3 until the auxiliary stirring blade 5 is completely inside the extension groove 3. Then, the connecting block 12 is fixed to the main stirring blade 2 by the cross bolt 13.

[0026] Please see Figures 1-6 In this embodiment, three telescopic rods 9 are evenly spaced on the side of the limiting plate 8 away from the main stirring blade 2, corresponding to the position of the spring 10. The ends of the telescopic rods 9 and the spring 10 away from the limiting plate 8 are connected to the inner wall of the slot 7. A handle 11 is provided in the middle of the end of the auxiliary stirring blade 5 away from the connecting sleeve 1. A connecting block 12 is provided on the top of the auxiliary stirring blade 5 near the connecting sleeve 1. A cross bolt 13 is threadedly connected to the top of the connecting block 12 near the connecting sleeve 1. A first internal threaded hole 14 is provided on the top of the main stirring blade 2 near the connecting sleeve 1, corresponding to the position of the cross bolt 13. The bottom end of the cross bolt 13 is screwed into the interior of the first internal threaded hole 14. The auxiliary stirring blade 5 is moved away from the connecting sleeve 1 by the handle 11. Pull until the inner wall of the sliding groove 6 near the connecting sleeve 1 is in contact with the connecting shaft 4. At this time, the limiting plate 8 moves out from the inside of the extension groove 3. The characteristic of the spring 10 pushes the limiting plate 8 to move away from the groove 7. When the limiting plate 8 moves, it drives the telescopic rod 9 to extend until the telescopic rod 9 extends to its longest length. In this way, the limiting plate 8 is located at the end of the main stirring blade 2 away from the connecting sleeve 1. The limiting plate 8 blocks and prevents the auxiliary stirring blade 5 from moving into the extension groove 3 again. This extends the auxiliary stirring blade 5 to expand the stirring area and realizes the extension function. It prevents the problem that when there is a lot of oil, the stirring blade area is too small and the oil cannot be stirred in a comprehensive manner, which affects the detection efficiency.

[0027] During operation, the auxiliary stirring blade 5 is pulled away from the connecting sleeve 1 by the handle 11 until the inner wall of the sliding groove 6 near the connecting sleeve 1 is in contact with the connecting shaft 4. At this time, the limiting plate 8 moves out from the inside of the extension groove 3. The characteristic of the spring 10 pushes the limiting plate 8 to move away from the groove 7. When the limiting plate 8 moves, it drives the telescopic rod 9 to extend until the telescopic rod 9 extends to its maximum length. In this way, the limiting plate 8 is located at the end of the main stirring blade 2 away from the connecting sleeve 1. The limiting plate 8 blocks the auxiliary stirring blade from moving away from the connecting sleeve 1. 5 moves further into the extension groove 3 to extend the auxiliary stirring blade 5 and expand the stirring area. When the auxiliary stirring blade 5 needs to be retracted, the limiting plate 8 is pushed into the groove 7. At this time, the spring 10 is compressed, and the telescopic rod 9 will retract until the limiting plate 8 is completely inside the groove 7. Then, the auxiliary stirring blade 5 is pushed into the extension groove 3 until the auxiliary stirring blade 5 is completely inside the extension groove 3. Subsequently, the connecting block 12 is fixed to the main stirring blade 2 by the cross bolt 13, thus realizing the extension function.

[0028] Through the above steps, the auxiliary stirring blade 5 is pulled away from the connecting sleeve 1 by the handle 11 until the inner wall of the sliding groove 6 near the connecting sleeve 1 is in contact with the connecting shaft 4. At this time, the limiting plate 8 moves out from the inside of the extension groove 3. The characteristic of the spring 10 pushes the limiting plate 8 to move away from the groove 7. When the limiting plate 8 moves, it drives the telescopic rod 9 to extend until the telescopic rod 9 extends to its longest length. In this way, the limiting plate 8 is located at the end of the main stirring blade 2 away from the connecting sleeve 1. The limiting plate 8 blocks and prevents the auxiliary stirring blade 5 from moving into the extension groove 3 again. This extends the auxiliary stirring blade 5 to increase the stirring area, which solves the problem that common stirrers used in kinematic viscosity testers only have the stirring function and can stir oil, but lack the extension function. They cannot guarantee that the stirring blade area can be adjusted according to the oil volume. When the oil volume is large, the stirring blade area is too small, which makes it impossible to stir the oil comprehensively and affects the detection efficiency.

Claims

1. A stirrer for a kinematic viscosity meter, comprising a connecting sleeve (1); characterized in that: It also includes a main stirring blade (2), an extension groove (3), a connecting shaft (4), a secondary stirring blade (5), a sliding groove (6), a slot (7), a limiting plate (8), and a spring (10). The connecting sleeve (1) has three main stirring blades (2) evenly spaced around its perimeter. An extension groove (3) is opened through the top of the main stirring blade (2) on the side away from the connecting sleeve (1). Two connecting shafts (4) are symmetrically arranged in the middle of the two sides of the extension groove (3) away from the end of the connecting sleeve (1). The extension groove (3) has two connecting shafts (4) symmetrically arranged in the middle of the two sides of the extension groove (3) away from the end of the connecting sleeve (1). The main part is provided with a secondary stirring blade (5). Two sliding grooves (6) are symmetrically opened on the middle of the two sides of the secondary stirring blade (5) corresponding to the position of the connecting shaft (4). The connecting shaft (4) is slidably connected to the sliding grooves (6). Four slots (7) are symmetrically opened on the two sides of the secondary stirring blade (5) near the end of the connecting sleeve (1) corresponding to the position of the sliding grooves (6). A limit plate (8) is provided inside the slot (7). Three springs (10) are equally spaced on the side of the limit plate (8) away from the main stirring blade (2).

2. The stirrer for a kinematic viscosity meter according to claim 1, characterized in that: Three telescopic rods (9) are equally spaced on the side of the limiting plate (8) away from the main stirring blade (2) corresponding to the position of the spring (10). The ends of the telescopic rods (9) and the spring (10) away from the limiting plate (8) are connected to the inner wall of the slot (7).

3. The stirrer for a kinematic viscosity meter according to claim 1, characterized in that: A handle (11) is provided in the middle of the end of the auxiliary stirring blade (5) away from the connecting sleeve (1), and a connecting block (12) is provided on the top of the auxiliary stirring blade (5) near the connecting sleeve (1).

4. A stirrer for a kinematic viscosity meter according to claim 3, characterized in that: A cross bolt (13) is threaded on the top of the connecting block (12) near the connecting sleeve (1). A first internal thread hole (14) is opened on the top of the main stirring blade (2) near the connecting sleeve (1) corresponding to the position of the cross bolt (13). The bottom end of the cross bolt (13) is screwed into the interior of the first internal thread hole (14).

5. A stirrer for a kinematic viscosity meter according to claim 1, characterized in that: A hexagonal bolt (15) is threaded on the middle of the front side of the connecting sleeve (1). A drive shaft (16) is provided on the top of the connecting sleeve (1). A second internal threaded hole (17) is provided at the bottom of the front side of the drive shaft (16) corresponding to the position of the hexagonal bolt (15).

6. A stirrer for a kinematic viscosity meter according to claim 5, characterized in that: The bottom end of the drive shaft (16) is inserted into the interior of the connecting sleeve (1), and the connecting sleeve (1) is screwed into the interior of the second internal threaded hole (17) through the rear end of the hexagonal bolt (15) and connected to the drive shaft (16).

7. A stirrer for a kinematic viscosity meter according to claim 6, characterized in that: A bushing (18) is provided at the top of the drive shaft (16), and a connecting hole (19) is provided at the bottom middle of the front side of the bushing (18).

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