A closed cup flash point tester for the preparation of diesel antiwear agent

Abstract

The present invention relates to the technical field of flash point testing, and discloses a closed cup flash point tester for the preparation of diesel anti-wear agent, including an instrument, wherein the instrument is provided with a swing arm, the bottom of the swing arm is provided with a cover plate, and the cover plate is provided with an ignition component and a stirring component. The present invention cooperates with the extended limit plate and the lifting component, so that the measuring cup will not be excessively lifted and collided with the stirring component due to the operating error of the staff during the whole taking-out process, so as to avoid the material in the measuring cup from spilling out, and the stirring component can be protected to avoid the stirring component from being damaged, and by lifting the bottom of the measuring cup, the bottom of the measuring cup will not contact with the instrument, so as to avoid the dust on the instrument from sticking, so that the bottom of the measuring cup is clean during subsequent heating, so that the dust will not be burned during heating, and the dust dropped when the ball in the lifting component is retracted can be collected, so as to avoid the dropped dust from entering the heating tank.

Description

Technical Field

[0001] The invention belongs to the technical field of flash point testing, and particularly relates to a closed cup flash point tester for preparing a diesel antiwear agent. Background Art

[0002] Flash point is an important indicator for determining flammable liquids and has a wide range of important significance in production, storage, transportation and use. The principle of flash point determination is: Pour the sample into the test cup, stir continuously at a specified rate, and heat the sample at a constant rate. At specified temperature intervals, while interrupting stirring, introduce a fire source into the opening of the test cup to cause the sample vapor to flash instantly and spread to the lowest temperature on the surface of the liquid. This temperature is the observed flash point under ambient atmospheric pressure, and then corrected to the flash point under standard atmospheric pressure using a formula.

[0003] When the existing closed cup flash point tester is conducting a closed cup flash point test, after the test is completed, the swing arm rises and separates the cover plate, the stirring assembly and the measuring cup. In order to prevent the liquid dripping from the stirring assembly from falling on the instrument, the stirring assembly will not be too far away from the measuring cup when leaving the measuring cup, so as to ensure that the dripping liquid falls into the measuring cup. However, due to such a design, when taking the measuring cup, the measuring cup is easy to collide with the stirring assembly, which not only causes the liquid in the measuring cup to spill, but also easily damages the stirring assembly. Summary of the invention

[0004] In view of the above problems, the present invention provides a closed cup flash point tester for the preparation of diesel antiwear agent to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A closed cup flash point tester for the preparation of diesel antiwear agent, comprising an instrument, wherein the instrument is provided with a swing arm, a cover plate is provided at the bottom of the swing arm, an ignition assembly and a stirring assembly are provided on the cover plate, a support ring is provided on the instrument, a gap exists between the support ring and the top wall of the instrument, a measuring cup is provided in a heating groove of the instrument, a sliding opening is equidistantly opened around the bottom of the measuring cup, a limiting plate is provided in the sliding opening, a curved surface is provided on the side of the limiting plate close to the inner wall of the heating groove, a sliding groove is symmetrically opened on the inner wall of the sliding opening, a slider is slidably installed inside the sliding groove, the slider is fixedly connected to the limiting plate, the side of the slider away from the inner wall of the heating groove is fixedly connected to the inner wall of the sliding groove by a first spring, a lifting assembly for lifting the bottom of the measuring cup is provided at the bottom, and a notch is provided on the front side of the support ring.

[0007] Furthermore, the lifting assembly includes a ring opening at the bottom of the measuring cup, a rotating shaft is rotatably installed in the ring opening, a support block is fixedly installed on the top of the rotating shaft, a ball groove is opened on the top of the support block, a ball is rotatably installed in the ball groove, and a rotating assembly for driving the rotating shaft to rotate is provided on the outside of the rotating shaft.

[0008] Furthermore, the rotating assembly includes teeth arranged on the outside of the rotating shaft, the inner wall of the ring mouth is provided with a movable opening connected to the sliding opening, a rack meshing with the teeth is slidably installed in the movable opening, and one end of the rack is fixedly connected to the limiting plate.

[0009] Furthermore, the support block can be in an outwardly inclined state as the rotating shaft rotates.

[0010] Furthermore, when the top of the limiting plate contacts the bottom of the supporting ring, the ball can contact the surface of the instrument.

[0011] Furthermore, the bottom of the measuring cup is respectively provided with a first channel and a second channel connected to the inner wall of the ring mouth, the bottom of the measuring cup is provided with a mounting groove corresponding to the second channel, a cylinder is provided in the mounting groove, the bottom of the cylinder is provided with a filter hole, the bottom of the cylinder is provided with a cross block, the top of the cylinder is threadedly connected to the second channel, the inside of the first channel and the second channel are both provided with a one-way valve, and the ring mouth is provided with a control component for extracting air in the first channel and injecting it into the second channel.

[0012] Furthermore, the control component includes a cylinder body fixedly connected to the inner wall of the ring mouth, a piston is provided inside the cylinder body, a circular groove is opened in the middle of the rotating shaft, the inner wall of the circular groove is fixedly connected to the piston by a pull rope passing through the cylinder body, and a second spring is provided outside the pull rope and below the piston, and the pull rope is rolled up in the circular groove.

[0013] Furthermore, the width of the notch is consistent with the diameter of the measuring cup.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The invention cooperates with the extended limit plate and the lifting assembly so that the measuring cup will not rise excessively and collide with the stirring assembly due to the operator's operating error during the whole taking-out process, thereby preventing the material in the measuring cup from spilling out, and can protect the stirring assembly from being damaged. Moreover, by lifting the bottom of the measuring cup, the bottom of the measuring cup will not contact the instrument, thereby preventing the dust on the instrument from sticking to it, so that the bottom of the measuring cup is clean during subsequent heating, and thus dust will not be burned during heating;

[0016] 2. The present invention can collect dust dropped when the balls in the lifting assembly are retracted, thereby preventing the dropped dust from entering the heating tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure schematic diagram of the closed cup flash point tester for preparing diesel antiwear agent according to the embodiment of the present invention is shown;

[0018] Figure 2 The structure diagram of the measuring cup according to the embodiment of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 3 The embodiment of the present invention is shown Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 A schematic cross-sectional view of a closed cup flash point tester for preparing a diesel antiwear agent according to an embodiment of the present invention is shown;

[0021] Figure 5 The embodiment of the present invention is shown Figure 4 The enlarged structural diagram at B in the middle;

[0022] Figure 6 The structure diagram of the measuring cup according to the embodiment of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 7 The embodiment of the present invention is shown Figure 6 The enlarged structural diagram at C in the middle;

[0024] In the figure: 1. instrument; 2. swing arm; 3. cover plate; 4. support ring; 5. measuring cup; 6. limit plate; 7. arc surface; 8. slide groove; 9. slider; 10. first spring; 11. rotating shaft; 12. support block; 13. ball bearing; 14. teeth; 15. rack; 16. first channel; 17. second channel; 18. cylinder; 19. one-way valve; 20. cylinder; 21. piston; 22. pull rope; 23. second spring. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0026] The present invention provides a closed cup flash point tester for the preparation of diesel antiwear agent, such as Figures 1 to 7As shown, the instrument 1 includes an instrument 1, which is a fully automatic closed cup flash point tester in the prior art. A swing arm 2 is provided on the instrument 1, a cover plate 3 is provided at the bottom of the swing arm 2, an ignition assembly and a stirring assembly are provided on the cover plate 3, and the ignition assembly and the stirring assembly are consistent with the ignition assembly and the stirring assembly on the fully automatic closed cup flash point tester in the prior art. A support ring 4 is provided on the instrument 1, and there is a gap between the support ring 4 and the top wall of the instrument 1. A measuring cup 5 is provided in the heating tank of the instrument 1, and a sliding mouth is equidistantly opened around the bottom of the measuring cup 5, and a limiting plate 6 is provided in the sliding mouth. A curved surface 7 is provided on the side of the limiting plate 6 close to the inner wall of the heating tank, and a sliding groove 8 is symmetrically opened on the inner wall of the sliding mouth. A slider 9 is slidably installed inside the sliding groove 8, and the slider 9 is fixedly connected to the limiting plate 6. The side of the slider 9 away from the inner wall of the heating tank is fixedly connected to the inner wall of the sliding groove 8 through a first spring 10. The bottom of the measuring cup 5 is provided with a lifting assembly for lifting its bottom, and a notch is provided on the front side of the support ring 4.

[0027] When in use, the materials required for the test in the preparation process of the diesel antiwear agent are placed in the measuring cup 5, and then placed in the heating tank, and the test is carried out through the instrument 1 in conjunction with the ignition component and the stirring component. After the test, the swing arm 2 leaves the measuring cup 5 with the cover plate 3, the ignition component and the stirring component, and is located above the measuring cup 5. At this time, the measuring cup 5 is held to make it rise, and the measuring cup 5 rises and moves with the limit plate 6. At this time, the limit plate 6 is located in the heating tank. At this time, the first spring 10 is in a compressed state. When the limit plate 6 moves to the gap between the support ring 4 and the top wall of the instrument 1, the compressed first spring 10 releases the force and moves the slider 9 and the limit plate 6 outward, so that the limit plate 6 moves to the bottom of the support ring 4. Since the limit plate 6 is located below the support ring 4, the limit plate 6 cannot continue to rise at this time, so the measuring cup 5 cannot rise. Then the measuring cup 5 is held and moved to the notch. At this time, the lifting component lifts the bottom of the measuring cup 5 so that the bottom of the measuring cup 5 does not contact the surface of the instrument 1, so that no dust will stick to the bottom of the measuring cup 5. After the hopper 5 is in the air, the hopper 5 will be moved back to the empty container 10, and the hopper 5 will not be moved back to the empty container 10, so that the hopper 5 will not be moved back to the empty container 10, and the hopper 5 will not be moved back to the empty container 10, so that the hopper 5 will not be moved back to the empty container 10, and the hopper 5 will not be moved back to the empty container 10, so that the hopper 5 will not be moved back to the empty container 10, and the hopper 5 will not be moved back to the empty container 10, and the hopper 5 will not be moved back to the empty container 10, so that the hopper 5 will not be moved

[0028] like Figures 4 to 7 As shown, the lifting assembly includes a ring opening opened at the bottom of the measuring cup 5, a rotating shaft 11 is rotatably installed in the ring opening, a support block 12 is fixedly installed on the top of the rotating shaft 11, a ball groove is opened on the top of the support block 12, a ball 13 is rotatably installed in the ball groove, and a rotating assembly for driving the rotating shaft 11 to rotate is provided on the outside of the rotating shaft 11.

[0029] When the limit plate 6 moves outward, it cooperates with the rotating assembly to drive the rotating shaft 11 to rotate with the support block 12 and the ball 13, so that the ball 13 finally moves to the outside of the ring mouth. The bottom of the measuring cup 5 can be lifted by the rotating shaft 11, the support block 12, and the ball 13, so that the bottom of the measuring cup 5 is separated from the surface of the instrument 1.

[0030] like Figure 5 and Figure 7 As shown, the rotating assembly includes teeth 14 arranged on the outside of the rotating shaft 11, and the inner wall of the ring mouth is provided with a movable opening connected to the sliding opening. A rack 15 meshing with the teeth 14 is slidably installed in the movable opening, and one end of the rack 15 is fixedly connected to the limiting plate 6.

[0031] The limit plate 6 moves outwards and moves the rack 15, and cooperates with the teeth 14 to rotate the shaft 11 forward, so that the support block 12 and the ball 13 move accordingly, so that the ball 13 moves to the outside of the ring mouth. Conversely, when the limit plate 6 contracts into the sliding mouth, the ball 13 can move to the inside of the ring mouth and reset.

[0032] like Figure 5 As shown, the support block 12 can rotate with the rotating shaft 11 to be in an outwardly inclined state.

[0033] Due to the inclination of the support block 12, when the ball 13 contacts the surface of the instrument 1, the measuring cup 5 provides a downward force for the rotating shaft 11, the support block 12, and the ball 13, so as to provide a force for the inclined support block 12 to continue to rotate forward. At this time, since the slider 9 is in conflict with the slide groove 8, the rack 15 cannot continue to move. The engagement of the teeth 14 and the rack 15 makes the rotating shaft 11 unable to continue to rotate forward and remain stationary, so that the ball 13 can roll stably to support the measuring cup 5.

[0034] like Figures 1 to 7 As shown, when the top of the limiting plate 6 contacts the bottom of the supporting ring 4 , the ball 13 can contact the surface of the instrument 1 .

[0035] The measuring cup 5 can cooperate with the ball 13 to be pushed into the notch along the surface of the instrument 1 .

[0036] like Figure 5As shown, the bottom of the measuring cup 5 is respectively provided with a first channel 16 and a second channel 17 connected to the inner wall of the ring mouth, and the bottom of the measuring cup 5 is provided with a mounting groove corresponding to the second channel 17, a cylinder 18 is provided in the mounting groove, a filter hole is provided at the bottom of the cylinder 18, a cross block is provided at the bottom of the cylinder 18, and the top of the cylinder 18 is threadedly connected to the second channel 17, a one-way valve 19 is provided inside the first channel 16 and the second channel 17, and a control component for extracting air in the first channel 16 and injecting it into the second channel 17 is provided in the ring mouth.

[0037] The ball 13 will get dust stuck to it when it rolls in contact with the surface of the instrument 1. When the ball 13 is retracted into the ring, the attached dust will easily break away from the ball 13 and enter the heating tank. Therefore, when the shaft 11 is reversed and reset, the control component will extract the air in the first channel 16. At this time, the one-way valve 19 in the second channel 17 is closed, and the one-way valve 19 in the first channel 16 is opened. Airflow is continuously generated in the first channel 16 to extract the fallen dust for collection, thereby preventing the fallen dust from entering the heating tank.

[0038] like Figure 5 As shown, the control assembly includes a cylinder body 20 fixedly connected to the inner wall of the ring mouth, a piston 21 is arranged inside the cylinder body 20, a circular groove is opened in the middle of the rotating shaft 11, the inner wall of the circular groove is fixedly connected to the piston 21 through a pull rope 22 passing through the cylinder body 20, and a second spring 23 is arranged outside the pull rope 22 and below the piston 21, and the pull rope 22 is rolled up in the circular groove.

[0039] When the shaft 11 rotates forward, the pull rope 22 is released. At this time, the compressed second spring 23 releases its force and drives the piston 21 up along the cylinder body 20, so that the air and the sucked dust in the cylinder body 20 are discharged outward. At this time, the one-way valve 19 in the first channel 16 is closed, and the one-way valve 19 in the second channel 17 is opened. The air and dust enter the cylinder body 18 through the second channel 17, and then the air is discharged through the filter hole to filter out the dust. When the shaft 11 rotates reversely, the pull rope 22 is reeled in to drive the piston 21 down, and at the same time, the pressure The second spring 23 is compressed to deform and generate a force. As the piston 21 descends, air is sucked into the cylinder 20. At this time, the one-way valve 19 in the first channel 16 is opened, and the one-way valve 19 in the second channel 17 is closed. An airflow is continuously generated in the first channel 16 to suck away the fallen dust for collection, so that dust and air enter the cylinder 20. When it is necessary to clean the cylinder 18, the rotating cross block rotates the cylinder 18 to separate from the second channel 17, and the cylinder 18 is removed to clean the internal dust.

[0040] like Figure 1 As shown, the width of the notch is consistent with the cup body diameter of the measuring cup 5.

[0041] This allows the measuring cup 5 to smoothly move outward along the notch of the supporting ring 4 until it leaves the instrument 1 .

[0042] Working principle: When in use, the materials required for the test in the preparation process of the diesel anti-wear agent are placed in the measuring cup 5, and then placed in the heating tank. The test is carried out through the instrument 1 in conjunction with the ignition component and the stirring component. After the test, the swing arm 2 leaves the measuring cup 5 with the cover plate 3, the ignition component and the stirring component, and is located above the measuring cup 5. At this time, the measuring cup 5 is held to make it rise, and the measuring cup 5 rises and moves with the limit plate 6. At this time, the limit plate 6 is located in the heating tank. At this time, the first spring 10 is in a compressed state. When the limit plate 6 moves to the gap between the support ring 4 and the top wall of the instrument 1, the compressed first spring 10 releases its force and slides The block 9 and the limit plate 6 move outward, so that the limit plate 6 moves to the bottom of the support ring 4. Since the limit plate 6 is located below the support ring 4, the limit plate 6 cannot continue to rise at this time, so the measuring cup 5 cannot rise. The limit plate 6 moves outward with the rack 15, and cooperates with the teeth 14 to rotate the shaft 11 forward, so that the support block 12 and the ball 13 move accordingly, so that the ball 13 moves to the outside of the ring mouth, so that the support block 12 rotates with the shaft 11 to be tilted outward, and then the measuring cup 5 is moved to the notch. At this time, the ball 13 cooperates with the support block 12 and the shaft 11 to lift the bottom of the measuring cup 5, so that the bottom of the measuring cup 5 is aligned with the notch. The surface of the instrument 1 does not contact, so that no dust will stick to the bottom of the measuring cup 5. Finally, the measuring cup 5 will leave from the notch. During the whole taking-out process, the measuring cup 5 will not rise excessively and collide with the stirring component due to the operating error of the staff, so as to avoid the material in the measuring cup 5 from spilling out, and the stirring component can be protected to avoid damaging the stirring component. When it is necessary to test again, add the material into the measuring cup 5, and push the measuring cup 5 along the notch to the heating tank. At this time, the limit plate 6 is below the support ring 4. At this time, the measuring cup 5 is pressed into the heating tank. At this time, the arc surface 7 of the limit plate 6 is squeezed with the heating notch, so that the limit plate 6 is pushed to shrink with the slider 9 into the sliding mouth, and at the same time When the first spring 10 is compressed to deform, the limiting plate 6 finally enters the sliding opening. At this time, the entire measuring cup 5 can enter the heating tank and slide down along the heating tank. When the limiting plate 6 is retracted, the rack 15 and the teeth 14 are cooperated to drive the rotating shaft 11 to reverse and reset. On the contrary, the ball 13 can be moved to the ring opening and reset, so that the bottom of the measuring cup 5 can contact the bottom wall of the heating tank for heating. During the whole process, due to the lifting of the bottom of the measuring cup 5, the bottom of the measuring cup 5 will not contact the instrument 1, so as to avoid sticking to the dust on the instrument 1. When heating subsequently, the bottom of the measuring cup 5 is clean, so there will be no burning of dust during heating.The ball 13 will be stuck with dust when rolling on the surface of the instrument 1. When the ball 13 is retracted into the ring mouth, the attached dust will easily break away from the ball 13 and enter the heating tank. Therefore, when the shaft 11 rotates forward, the pull rope 22 is released. At this time, the compressed second spring 23 releases the force to carry the piston 21 up along the cylinder 20, so that the air and the sucked dust in the cylinder 20 are discharged outward. At this time, the one-way valve 19 in the first channel 16 is closed, and the one-way valve 19 in the second channel 17 is opened. The air and dust enter the cylinder 18 through the second channel 17, and then the air is discharged through the filter hole to filter out the dust. When the shaft 11 is reversed, the pull rope 22 is reeled in so that the piston 21 descends, and at the same time compresses the second spring 23 to deform it to generate a force. As the piston 21 descends, air is pumped into the cylinder 20. At this time, the one-way valve 19 in the first channel 16 is opened, and the one-way valve 19 in the second channel 17 is closed. The first channel 16 continuously generates airflow to extract the fallen dust for collection, so that the dust and air enter the cylinder 20. When the cylinder 18 needs to be cleaned, the rotating cross block rotates the cylinder 18 to separate from the second channel 17, and the cylinder 18 is removed to clean the internal dust. By separating the dust collection when the ball 13 is received in the ring, the fallen dust can be prevented from entering the heating tank. ;

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A closed cup flash point tester for the preparation of diesel antiwear agent, comprising an instrument (1), characterized in that: The instrument (1) is provided with a swing arm (2), a cover plate (3) is provided at the bottom of the swing arm (2), an ignition assembly and a stirring assembly are provided on the cover plate (3), a support ring (4) is provided on the instrument (1), a gap is provided between the support ring (4) and the top wall of the instrument (1), a measuring cup (5) is provided in the heating tank of the instrument (1), a sliding opening is equidistantly opened around the bottom of the measuring cup (5), a limiting plate (6) is provided in the sliding opening, a curved surface (7) is provided on the side of the limiting plate (6) close to the inner wall of the heating tank, a sliding groove (8) is symmetrically opened on the inner wall of the sliding opening, a slider (9) is slidably installed inside the sliding groove (8), the slider (9) is fixedly connected to the limiting plate (6), the side of the slider (9) away from the inner wall of the heating tank is fixedly connected to the inner wall of the sliding groove (8) through a first spring (10), a lifting assembly for lifting the bottom of the measuring cup (5) is provided at the bottom, and a notch is provided on the front side of the support ring (4); The lifting assembly comprises a ring opening formed at the bottom of the measuring cup (5), a rotating shaft (11) being rotatably mounted in the ring opening, a supporting block (12) being fixedly mounted on the top of the rotating shaft (11), a ball groove being formed on the top of the supporting block (12), a ball (13) being rotatably mounted in the ball groove, and a rotating assembly for driving the rotating shaft (11) to rotate is provided on the outside of the rotating shaft (11); The rotating assembly comprises teeth (14) arranged on the outside of the rotating shaft (11); the inner wall of the ring opening is provided with a movable opening connected to the sliding opening; a rack (15) meshing with the teeth (14) is slidably installed in the movable opening; one end of the rack (15) is fixedly connected to the limit plate (6).

2. The closed cup flash point tester for the preparation of diesel antiwear agent according to claim 1, characterized in that: The support block (12) can rotate along with the rotating shaft (11) to be in an outwardly inclined state.

3. The closed cup flash point tester for the preparation of diesel antiwear agent according to claim 2, characterized in that: When the top of the limiting plate (6) contacts the bottom of the supporting ring (4), the ball (13) can contact the surface of the instrument (1).

4. The closed cup flash point tester for the preparation of diesel antiwear agent according to claim 3, characterized in that: The bottom of the measuring cup (5) is provided with a first channel (16) and a second channel (17) respectively connected to the inner wall of the ring opening. The bottom of the measuring cup (5) is provided with a mounting groove corresponding to the second channel (17). A cylinder (18) is provided in the mounting groove. A filter hole is provided at the bottom of the cylinder (18). A horizontal block is provided at the bottom of the cylinder (18). The top of the cylinder (18) is threadedly connected to the second channel (17). Both the first channel (16) and the second channel (17) are provided with a one-way valve (19). A control component for extracting air from the first channel (16) and injecting it into the second channel (17) is provided in the ring opening.

5. The closed cup flash point tester for the preparation of diesel antiwear agent according to claim 4, characterized in that: The control assembly comprises a cylinder body (20) fixedly connected to the inner wall of the ring mouth, a piston (21) is arranged inside the cylinder body (20), a circular groove is opened in the middle of the rotating shaft (11), the inner wall of the circular groove is fixedly connected to the piston (21) via a pull rope (22) passing through the cylinder body (20), a second spring (23) is arranged outside the pull rope (22) and below the piston (21), and the pull rope (22) is rolled up in the circular groove.

6. The closed cup flash point tester for the preparation of diesel antiwear agent according to claim 5, characterized in that: The width of the notch is consistent with the diameter of the cup body of the measuring cup (5).

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