Pressure calibration device for closed-cup flash point instrument

Abstract

The utility model provides a pressure calibration device for a closed-cup flash point instrument, which belongs to the field of flash point instruments and comprises a flash point instrument body, the flash point instrument body comprises a mechanical arm and a sealing cover, the mechanical arm is mounted on the flash point instrument body and is connected with the flash point instrument body in a matched manner, and the sealing cover is mounted at the bottom end of the mechanical arm and is connected with the mechanical arm in a matched manner; and the adjusting assembly comprises an air pump, a connecting pipe, an electromagnetic valve and a pressurizing pipe. The adjusting assembly is arranged, pressure can be automatically calibrated, working efficiency and adjusting precision are improved, abrasion is not prone to being caused, accuracy and stability are further improved, the dustproof assembly and the cleaning assembly are further arranged, dust can be automatically collected, a dustproof net can be automatically cleaned, and the working efficiency and the adjusting precision are improved. Dust is prevented from entering the flash point instrument body to influence the work of the flash point instrument body, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flash point instruments, in particular to a pressure calibration device for a closed-cup flash point instrument. Background Art

[0002] A pressure calibration device for a closed-cup flash point meter with application number CN202322424164.4 relates to the field of chemical laboratory instruments, including a closed-cup flash point meter body, a material cup placed on the top of the closed-cup flash point meter body, a sealing cover in close contact with the top of the material cup, two round rods symmetrically fixed to the surface of the sealing cover, two mounting plates symmetrically fixed to the top of the closed-cup flash point meter body, mounting grooves relatively provided on the mounting plates, the round rods slidably connected in adjacent mounting grooves, and a pressure probe fixedly installed on the top of the sealing cover. By providing a sealing cover, round rods, mounting grooves and a sealing gasket, when the sealing cover is installed, with the cooperation of the round rods and the mounting grooves, the sealing gasket can be rotated and moved downward on the top of the material cup, squeezing the sealing gasket so that it can be tightly installed on the top of the material cup. This installation method can achieve a better sealing effect between the sealing cover and the material cup.

[0003] Although the above technology has excellent sealing effect, the adjustment method of manually turning the screw to drive the piston movement not only has a slow adjustment speed, which reduces work efficiency, but also makes it difficult to achieve high-precision pressure control. The adjustment accuracy is limited, and components such as the piston and seals are prone to wear after long-term use or frequent adjustment, resulting in a decrease in sealing performance, which in turn affects the accuracy and stability of pressure regulation. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pressure calibration device for a closed-cup flash point instrument.

[0005] The embodiment of the utility model provides a pressure calibration device for a closed-cup flash point instrument, comprising:

[0006] A flash point instrument body, comprising a mechanical arm and a sealing cover, wherein the mechanical arm is mounted on and cooperatively connected to the flash point instrument body, and the sealing cover is mounted on the bottom end of the mechanical arm and cooperatively connected to the mechanical arm;

[0007] An adjusting component includes an air pump, a connecting pipe, a solenoid valve and a pressurizing pipe. The air pump is fixedly mounted on the robotic arm, the connecting pipe is fixedly connected to the air outlet end of the air pump, the pressurizing pipe is fixedly arranged through the sealing cover, the solenoid valve is fixedly connected to the outer end of the pressurizing pipe, and the other end of the connecting pipe is fixedly connected to the other end of the solenoid valve.

[0008] Furthermore, it also includes a dust-proof component, which includes a mounting frame, an air inlet pipe and a dust-proof net. The mounting frame is fixedly set at one end of the air pump, the air inlet pipe is slidably sleeved on the mounting frame, the dust-proof net is fixedly set in the air inlet pipe, and a dust-collecting hole is provided through the bottom of the air inlet pipe. A collection component is provided at the bottom of the air inlet pipe.

[0009] Furthermore, the collection assembly includes a collection box, two L-shaped strips and two mounting strips. The collection box is arranged in conjunction with the ash drop hole. The two L-shaped strips are fixedly arranged in parallel at the bottom of the air inlet pipe, and the two mounting strips are respectively fixedly arranged at the top ends of both sides of the collection box.

[0010] Furthermore, it also includes a cleaning component, which includes a vertical plate, a shaft, a brush and a weight block. A through hole is provided through the bottom of the air inlet pipe. The vertical plate is movably provided through the through hole. The shaft rod is rotatably provided through the vertical plate. Fixed blocks are fixed at both ends of the shaft rod. The two fixed blocks are fixedly provided at the inner bottom of the air inlet pipe. The brush is fixedly provided on one side of the vertical plate. The brush is arranged to be against the dustproof net. The weight block is fixedly provided at the bottom of the vertical plate.

[0011] Furthermore, a rubber strip is fixedly provided on the outer side of the installation frame, and the rubber strip is arranged to abut against the inner wall of the air inlet pipe.

[0012] Furthermore, the two L-shaped bars are arranged opposite to each other, and the two L-shaped bars are respectively arranged on both sides of the ash drop hole, and the two installation bars are respectively inserted into the L-shaped bars on the same side.

[0013] Furthermore, a magnetic block is fixedly provided on the top end of one side of the collection box, and the magnetic block is provided in cooperation with the air inlet pipe.

[0014] Furthermore, a handle is fixedly provided on one side of the collection box, and an anti-slip sleeve is provided on the handle.

[0015] Furthermore, a rubber protective cover is fixedly provided on the vertical plate, the rubber protective cover is fixedly provided on the inner bottom of the air inlet pipe, and the shaft and the through hole are both provided in the rubber protective cover.

[0016] Furthermore, a controller is installed on the flash point instrument body, a pressure sensor is provided through the sealing cover, and the controller is connected to the flash point instrument body, the mechanical arm and the pressure sensor by wires.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. An adjustment component is set up. The air pump can pressurize or reduce the internal pressure through the connecting pipe and the pressure pipe, and detect the internal pressure through the pressure sensor. When the appropriate pressure is reached, the solenoid valve and the air pump are closed to complete the calibration, thereby automatically performing calibration, improving work efficiency and adjustment accuracy, and thus improving accuracy and stability.

[0019] 2. A dust-proof component and a collection component are set up. The dust-proof net can block the dust from the outside and fall into the collection box through the dust-falling hole, thereby collecting the dust; pull the collection box outward to pull out the collection box and clean the dust inside; insert the two installation strips into the two L-shaped strips respectively to fix the collection box. The operation is simple and convenient.

[0020] 3. A cleaning component is set up. The robotic arm can drive the dust net to rotate. The brush can always remain vertical under the action of the gravity of the weight, so as to brush the rotating dust net and sweep away the dust stuck on the dust net, thereby automatically cleaning the dust net and increasing practicality.

[0021] To sum up, the utility model is provided with an adjustment component, which can automatically calibrate the pressure, improve the work efficiency and adjustment accuracy, and is not easy to cause wear, thereby improving the accuracy and stability. It is also provided with a dustproof component and a cleaning component, which can automatically collect dust and clean the dustproof net to prevent dust from entering and affecting the operation of the flash point meter body, thereby increasing practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of a pressure calibration device for a closed-cup flash point instrument described in an embodiment of the present utility model.

[0023] Figure 2 A pressure calibration device for a closed cup flash point instrument as described in the embodiment of the utility model Figure 1 Enlarged view of point A in the middle.

[0024] Figure 3 It is a cross-sectional expanded view of a dustproof component in a pressure calibration device for a closed-cup flash point instrument described in an embodiment of the present utility model.

[0025] Figure 4 The present invention is a cross-sectional view of a vertical plate in a pressure calibration device for a closed-cup flash point instrument according to an embodiment of the present invention.

[0026] In the above drawings: 1 flash point tester body, 2 robotic arm, 3 sealing cover, 4 air pump, 5 connecting pipe, 6 solenoid valve, 7 pressurizing pipe, 8 pressure sensor, 9 mounting frame, 10 rubber strip, 11 air inlet pipe, 12 dust screen, 13 dust drop hole, 14 collection box, 15 L-shaped strip, 16 mounting strip, 17 magnetic block, 18 handle, 19 riser, 20 shaft, 21 rubber protective cover, 22 brush, 23 weight block. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1-4 As shown, the embodiment of the present invention provides a pressure calibration device for a closed-cup flash point instrument, comprising:

[0029] The flash point instrument body 1 includes a mechanical arm 2 and a sealing cover 3. The flash point instrument body 1, the mechanical arm 2 and the sealing cover 3 are all prior art and will not be described in detail herein. The mechanical arm 2 is mounted on the flash point instrument body 1 and cooperatively connected therewith so that the front end of the mechanical arm 2 can be rotated upward to open. The sealing cover 3 is mounted on the bottom end of the mechanical arm 2 and cooperatively connected therewith. A controller is mounted on the flash point instrument body 1. A pressure sensor 8 is provided through the sealing cover 3. The controller is connected to the flash point instrument body 1, the mechanical arm 2 and the pressure sensor 8 by wires so that the controller can control the opening and closing and operation of the flash point instrument body 1, the mechanical arm 2 and the pressure sensor 8.

[0030] The regulating assembly includes an air pump 4, a connecting pipe 5, a solenoid valve 6 and a pressurizing pipe 7. The air pump 4 is fixedly mounted on the robotic arm 2. The air pump 4 is a dual-purpose pump for blowing and suction, which can perform pressurization and decompression, making it easy to adjust the pressure as needed. The connecting pipe 5 is fixedly connected to the air outlet end of the air pump 4. The pressurizing pipe 7 passes through the sealing cover 3 and is fixedly arranged. The solenoid valve 6 is fixedly connected to the outer end of the pressurizing pipe 7, and the other end of the connecting pipe 5 is fixedly connected to the other end of the solenoid valve 6;

[0031] It also includes a dust-proof component, which includes a mounting frame 9, an air inlet pipe 11 and a dust-proof net 12. The mounting frame 9 is fixedly arranged at one end of the air pump 4, and the air inlet end of the air pump 4 is arranged in the mounting frame 9. The air inlet pipe 11 is slidably sleeved on the mounting frame 9. A rubber strip 10 is fixedly arranged on the outside of the mounting frame 9. The rubber strip 10 is arranged to abut against the inner wall of the air inlet pipe 11. The air inlet pipe 11 can be pressed tightly by the rubber strip 10, so as to position and fix the air inlet pipe 11. The dust-proof net 12 is fixedly arranged in the air inlet pipe 11. A dust-falling hole 13 is provided through the bottom of the air inlet pipe 11, and a collection component is provided at the bottom of the air inlet pipe 11.

[0032] The collection assembly includes a collection box 14, two L-shaped strips 15 and two mounting strips 16. The collection box 14 is arranged in conjunction with the ash drop hole 13. The collection box 14 covers the bottom of the ash drop hole 13 so that dust can fall into the collection box 14 through the ash drop hole 13. The two L-shaped strips 15 are fixedly arranged in parallel at the bottom of the air inlet pipe 11. The two L-shaped strips 15 are arranged opposite to each other. The two L-shaped strips 15 are respectively arranged on both sides of the ash drop hole 13. The two mounting strips 16 are respectively fixedly arranged on the top of both sides of the collection box 14. The two mounting strips 16 are respectively snapped into the L-shaped strips 15 on the same side.

[0033] A magnetic block 17 is fixedly provided on the top of one side of the collection box 14. The magnetic block 17 is arranged in conjunction with the air inlet pipe 11. The air inlet pipe 11 is set as a magnetic metal so that the magnetic block 17 can be adsorbed on the air inlet pipe 11. A handle 18 is fixedly provided on one side of the collection box 14. The handle 18 is provided with an anti-slip cover to facilitate the user to pull the collection box 14;

[0034] It also includes a cleaning assembly, which includes a vertical plate 19, a shaft 20, a brush 22 and a weight 23. The bottom of the air inlet pipe 11 is penetrated with a through hole, and the vertical plate 19 is movably set through the through hole so that the vertical plate 19 can rotate in the through hole. The shaft 20 is rotatably set through the vertical plate 19. Both ends of the shaft 20 are fixed with fixed blocks. The two fixed blocks are fixedly set at the inner bottom of the air inlet pipe 11. The brush 22 is fixedly set on one side of the vertical plate 19. The brush 22 is set against the dust screen 12 so that The brush 22 can brush the dustproof net 12, the weight block 23 is fixedly set at the bottom of the vertical plate 19, and a rubber protective cover 21 is fixedly set on the vertical plate 19. The rubber protective cover 21 is fixedly set at the inner bottom of the air inlet pipe 11. The shaft 20 and the through hole are both set in the rubber protective cover 21, so that the rubber protective cover 21 can cover the through hole to prevent dust from entering the air inlet pipe 11 through the through hole. The material of the rubber protective cover 21 is relatively soft and can be stretched and bent freely, so as not to affect the rotation of the vertical plate 19.

[0035] The detailed working process of this utility model is as follows:

[0036] 1. When in use, first open the solenoid valve 6, then start the air pump 4. The air pump 4 can pressurize or depressurize the interior through the connecting pipe 5 and the pressurizing pipe 7, and detect the internal pressure through the pressure sensor 8. When the appropriate pressure is reached, close the solenoid valve 6 and the air pump 4 to complete the calibration;

[0037] 2. During use, the dust screen 12 can block external dust and drop it into the collection box 14 through the dust drop hole 13; during the rotation of the robotic arm 2, it can drive the air inlet pipe 11 and the dust screen 12 to rotate. Under the action of the gravity of the weight block 23, the brush 22 and the vertical plate 19 always remain vertical, so that the brush 22 can brush the rotating dust screen 12, sweeping away the dust stuck on the dust screen 12 and dropping it into the collection box 14;

[0038] 3. Pull the collection box 14 outward using the handle 18 to separate the magnetic block 17 from the air inlet pipe 11. Remove the collection box 14 and clean the dust inside. Insert the two mounting bars 16 into the two L-shaped bars 15, respectively, and attach the magnetic block 17 to the air inlet pipe 11 to secure the collection box 14.

[0039] 4. When the dust screen 12 is seriously clogged after long-term use, pull out the air inlet pipe 11 and separate it from the installation frame 9 to clean the dust screen 12; when installing, put the air inlet pipe 11 on the installation frame 9 and clamp it tightly with the rubber strip 10.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pressure calibration device for a closed cup flash point instrument, characterized in that: include: A flash point meter body (1), the flash point meter body (1) comprising a mechanical arm (2) and a sealing cover (3), the mechanical arm (2) being mounted on the flash point meter body (1) and being cooperatively connected thereto, and the sealing cover (3) being mounted on the bottom end of the mechanical arm (2) and being cooperatively connected thereto; A regulating assembly, comprising an air pump (4), a connecting pipe (5), a solenoid valve (6) and a pressurizing pipe (7), wherein the air pump (4) is fixedly mounted on the robotic arm (2), the connecting pipe (5) is fixedly connected to the air outlet end of the air pump (4), the pressurizing pipe (7) passes through the sealing cover (3) and is fixedly arranged, the solenoid valve (6) is fixedly connected to the outer end of the pressurizing pipe (7), and the other end of the connecting pipe (5) is fixedly connected to the other end of the solenoid valve (6).

2. A pressure calibration device for a closed cup flash point instrument according to claim 1, characterized in that: in: The utility model also includes a dustproof component, which includes a mounting frame (9), an air inlet pipe (11) and a dustproof net (12). The mounting frame (9) is fixedly arranged at one end of the air pump (4), the air inlet pipe (11) is slidably sleeved on the mounting frame (9), the dustproof net (12) is fixedly arranged in the air inlet pipe (11), the bottom of the air inlet pipe (11) is provided with a dust drop hole (13), and the bottom of the air inlet pipe (11) is provided with a collection component.

3. A pressure calibration device for a closed cup flash point instrument according to claim 2, characterized in that: in: The collection assembly comprises a collection box (14), two L-shaped bars (15) and two mounting bars (16); the collection box (14) is arranged in conjunction with the ash drop hole (13); the two L-shaped bars (15) are fixedly arranged in parallel at the bottom of the air inlet pipe (11); and the two mounting bars (16) are fixedly arranged at the top ends of both sides of the collection box (14).

4. A pressure calibration device for a closed cup flash point instrument according to claim 2, characterized in that: in: The invention also includes a cleaning component, which includes a vertical plate (19), a shaft (20), a brush (22) and a weight (23). The bottom of the air inlet pipe (11) is provided with a through hole, the vertical plate (19) is movably provided through the through hole, the shaft (20) is rotatably provided through the vertical plate (19), both ends of the shaft (20) are fixed with fixed blocks, and the two fixed blocks are fixedly provided at the inner bottom of the air inlet pipe (11), the brush (22) is fixedly provided on one side of the vertical plate (19), the brush (22) is arranged to abut against the dustproof net (12), and the weight (23) is fixedly provided at the bottom of the vertical plate (19).

5. A pressure calibration device for a closed cup flash point instrument according to claim 2, characterized in that: in: A rubber strip (10) is fixedly provided on the outer side of the installation frame (9), and the rubber strip (10) is arranged to abut against the inner wall of the air inlet pipe (11).

6. A pressure calibration device for a closed cup flash point instrument according to claim 3, characterized in that: in: The two L-shaped strips (15) are arranged opposite to each other, and the two L-shaped strips (15) are respectively arranged on both sides of the ash drop hole (13), and the two mounting strips (16) are respectively inserted into the L-shaped strips (15) on the same side.

7. A pressure calibration device for a closed cup flash point instrument according to claim 3, characterized in that: in: A magnetic block (17) is fixedly provided on the top end of one side of the collection box (14), and the magnetic block (17) is arranged in cooperation with the air inlet pipe (11).

8. The pressure calibration device for a closed cup flash point instrument according to claim 3, characterized in that: in: A handle (18) is fixedly provided on one side of the collection box (14), and an anti-slip sleeve is provided on the handle (18).

9. A pressure calibration device for a closed cup flash point instrument according to claim 4, characterized in that: in: A rubber protective cover (21) is fixedly provided on the vertical plate (19), and the rubber protective cover (21) is fixedly provided on the inner bottom of the air inlet pipe (11), and the shaft (20) and the through hole are both provided in the rubber protective cover (21).

10. The pressure calibration device for a closed cup flash point instrument according to claim 1, characterized in that: in: A controller is installed on the flash point instrument body (1), a pressure sensor (8) is provided through the sealing cover (3), and the controller is connected to the flash point instrument body (1), the mechanical arm (2) and the pressure sensor (8) by wires.

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