Full-automatic interfacial tensiometer

Abstract

The utility model discloses a full-automatic interface tensiometer which comprises a tensiometer body, a supporting plate and a measuring head, the supporting plate is installed on one side of the upper surface of the tensiometer body, the measuring head is installed at the upper end of the supporting plate, the upper surface of the tensiometer body is fixedly connected with a collecting box, and the inner bottom of the collecting box is fixedly connected with a lifting box. The side face of the lifting box is fixedly connected with a motor, the output end of the motor is fixedly connected with a bidirectional lead screw, the other end of the bidirectional lead screw is rotationally connected with the inner side wall of the lifting box, and the motor, a sliding block, a bidirectional lead screw transmission rod and a lifting block are matched with one another, so that a worker can conveniently adjust the height of a sample, and detection is more convenient; and through mutual cooperation of a baffle, a push rod, a mounting box, a partition plate, a mounting frame, a damping spring and a limiting block, effective buffering can be performed when the device is impacted, the protection capability is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of tension meters, in particular to a full-automatic interfacial tension meter. Background Art

[0002] The fully automatic interfacial tension meter is a precision instrument mainly used to measure the surface tension of liquids. It has a wide range of applications and is widely used in chemical, pharmaceutical, printing, ink, coating and other industries, which is beneficial to product research and development and product quality control.

[0003] The existing fully automatic interfacial tension meter is inconvenient for staff to operate during the process of adjusting the sample table height, and the device itself has poor ability to cope with external impacts, is easily damaged after being hit, and has poor protection capabilities. The device of the utility model makes it convenient for staff to adjust the sample table height, is more conducive to sample testing, and the device can effectively buffer when facing impact, with better protection. Utility Model Content

[0004] The purpose of the utility model is to provide a fully automatic interfacial tension meter to solve the problems of inconvenience for staff to operate during the adjustment of the sample table height and the poor ability of the device itself to cope with external impact, being easily damaged after being hit and having poor protection ability.

[0005] To achieve the above object, a fully automatic interfacial tension meter is provided, comprising: a tension meter body, a support plate and a measuring head, the support plate being mounted on one side of the upper surface of the tension meter body, the measuring head being mounted on the upper end of the support plate, the upper surface of the tension meter body being fixedly connected to a collection box, the inner bottom of the collection box being fixedly connected to a lifting box, the side of the lifting box being fixedly connected to a motor, the output end of the motor being fixedly connected to a bidirectional screw rod, the other end of the bidirectional screw rod being rotatably connected to the inner side wall of the lifting box, two sliders being provided on the outside of the bidirectional screw rod, the lower surfaces of the two sliders being slidably connected to the inner bottom of the lifting box, the upper surfaces of the two sliders being rotatably connected to a transmission rod, one end of the two transmission rods being rotatably connected to a lifting block, the upper surface of the lifting block being fixedly connected to a placing table, the upper end of the placing table extending to the outside of the lifting box, and the outer surface of the placing table being slidably connected to the inside of the lifting box, the upper surface of the placing table being provided with a holding dish, the cooperation between the motor, the slider, the bidirectional screw rod and the lifting block making it convenient for staff to adjust the sample height, more convenient for testing, and convenient for testing samples with different liquid level heights, with good practicality;

[0006] The upper surface of the measuring head and the lower surface of the tension meter body are fixedly connected to the mounting box, the interior of the two mounting boxes are fixedly connected to the partition plate, the two side surfaces of the partition plates are fixedly connected to the mounting frame, the inner walls of the multiple mounting frames are fixedly connected to the shock-absorbing springs, the interiors of the two mounting boxes are slidably connected to the two push rods, the outsides of one end of the multiple push rods located inside the mounting box are slidably connected to the inside of the shock-absorbing springs, the outsides of the multiple push rods are fixedly connected to the limit blocks, and the limit blocks are located inside the mounting box, and the ends of the corresponding two push rods extending to the outside of the mounting box are fixedly connected to the baffle, and the baffle, push rod, mounting box, partition plate, mounting frame, shock-absorbing spring and limit block cooperate with each other, so that when the device is impacted, effective buffering can be performed, thereby improving the protection capability and increasing the service life of the device.

[0007] According to the fully automatic interfacial tension meter, the four corners of the lower surface of the tension meter body are fixedly connected with connecting rods, the lower ends of the connecting rods are fixedly connected to pads, and the lower surface of the pads is provided with anti-slip grooves to enhance grip and improve device stability.

[0008] According to the fully automatic interfacial tension meter, a display screen is provided on the side of the tension meter body, and a plurality of control keys are provided on the same side of the tension meter body as the display screen for displaying the measurement structure and control device, providing convenience for the staff.

[0009] According to the fully automatic interfacial tension meter, the outsides of the plurality of push rods are all slidably connected to fixed blocks, wherein the upper surfaces of two of the fixed blocks are fixedly connected to the lower surface of the tension meter body, and the lower surfaces of the other two fixed blocks are fixedly connected to the upper surface of the measuring head. The push rods are fixed by the fixed blocks, which facilitates force transmission and is more conducive to protection.

[0010] According to the fully automatic interfacial tension meter, a protrusion is provided at the bottom of the collection box, and a liquid outlet is provided on the side of the collection box, which is convenient for collecting liquid and facilitating centralized processing.

[0011] According to the fully automatic interfacial tension meter, the size of the limit block matches the size of the inner wall of the installation frame, and the shape of the limit block is the same as that of the installation frame, which facilitates buffering.

[0012] According to the fully automatic interfacial tension meter, the diameter of the placement platform matches the diameter of the holding dish, and the shape of the placement platform is the same as the shape of the holding dish, which is beneficial to the stability of the installation of the holding dish.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The motor is used to rotate the bidirectional screw rod, so that the sliders move toward each other. The movement of the slider drives the transmission rod to lift, so that the lifting block drives the placement table to rise or fall, and then the measuring head is used to detect the sample, which is convenient for the staff to adjust the height of the sample table and facilitate the detection of samples with different liquid level heights. It has good practicality.

[0015] 2. When the baffle is impacted, it will push the push rod to move in the installation box, thereby driving the limit block to squeeze the shock-absorbing spring inside the installation frame, reducing the impact and providing buffering, effectively improving the device's own protection capability and helping to extend the device's service life.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a three-dimensional diagram of the fully automatic interfacial tension meter of the present utility model;

[0019] Figure 2 This is a front cross-sectional view of the fully automatic interfacial tension meter of the present utility model;

[0020] Figure 3 This is the internal structure diagram of the lifting box of the fully automatic interfacial tension meter of the utility model;

[0021] Figure 4 This is a new automatic interfacial tension meter Figure 2 Enlarged view of point A in the middle.

[0022] In the figure: 1. Tensiometer body; 2. Display screen; 3. Control key; 4. Pad; 5. Connecting rod; 6. Push rod; 7. Baffle; 8. Placement table; 9. Container; 10. Measuring head; 11. Support plate; 12. Fixing block; 13. Motor; 14. Lifting box; 15. Slider; 16. Bidirectional screw; 17. Lifting block; 18. Transmission rod; 19. Collection box; 20. Shock-absorbing spring; 21. Installation box; 23. Limit block; 24. Installation frame; 25. Partition plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The embodiment of the present invention provides a technical solution: a fully automatic interfacial tension meter, comprising: a tension meter body 1, a support plate 11, and a measuring head 10. The support plate 11 is mounted on one side of the upper surface of the tension meter body 1, and the measuring head 10 is mounted on the upper end of the support plate 11. When the measuring head is pulled out from the interface formed by two incompatible liquids of different densities, it is pulled by the interfacial tension of the liquids, causing the metal sheet at the other end of the lever (located in the probe of the eddy current sensor) to displace. The eddy current sensor converts this displacement change into a voltage signal output. On the one hand, this conversion voltage is applied to both ends of the magnetic inductor, and the electromagnetic attraction exerted on the permanent magnet increases with the increase in displacement, causing the lever to reach a new equilibrium state, that is, Ftension × L1 = Fmagnetism × L2 always holds. In addition, this conversion voltage is sent to an A / D converter. The CPU performs nonlinear correction on the conversion result and outputs the measured tension value result. The upper surface of the tension meter body 1 is fixedly connected to the collection box 19, and the collection box 19 is used to collect the leaked samples for convenient centralized processing. The bottom of the collection box 19 is fixedly connected to the lifting box 14 to protect the internal components. The side of the lifting box 14 is fixedly connected to the motor 13, and the lifting power is provided by the motor 13. The output end of the motor 13 is fixedly connected to the bidirectional screw rod 16, and the bidirectional screw rod 16 is used to rotate to drive the slider 15 to move. The other end of the bidirectional screw rod 16 is rotatably connected to the inner wall of the lifting box 14. The bidirectional screw rod 16 is provided with two Sliders 15, the lower surfaces of the two slides 15 are slidably connected to the bottom of the lifting box 14, which is convenient for limiting the position of the slides 15 when they move, and the movement is more stable. The upper surfaces of the two slides 15 are rotatably connected to the transmission rod 18, and the movement of the slides 15 pushes the transmission rod 18 to move up and down. One end of the two transmission rods 18 is rotatably connected to the lifting block 17, and the upper surface of the lifting block 17 is fixedly connected to the placement table 8 for placing samples. The upper end of the placement table 8 extends to the outside of the lifting box 14, and the outer surface of the placement table 8 is slidably connected to the inside of the lifting box 14. A holding dish 9 is provided on the upper surface of the placement table 8, and the holding dish 9 is used to place the sample;

[0025] The upper surface of the measuring head 10 and the lower surface of the tension meter body 1 are fixedly connected to the installation box 21 to provide an installation foundation. The two installation boxes 21 are fixedly connected to the partition plate 25 for dividing the installation box 21 into two chambers. The two partition plates 25 are fixedly connected to the installation frame 24 on both sides for limiting the deformation of the shock-absorbing spring 20. The inner walls of multiple installation frames 24 are fixedly connected to the shock-absorbing spring 20, and the elasticity of the shock-absorbing spring 20 is used to reduce the impact. The two installation boxes 21 are slidingly connected to the two push rods 6, and the impact force is transmitted through the push rods 6. The outside of one end of the multiple push rods 6 inside the installation box 21 is slidingly connected to the inside of the shock-absorbing spring 20, and the outside of the multiple push rods 6 is fixedly connected to the limit block 23, and the impact force is transmitted through the limit block 23 to squeeze the shock-absorbing spring 20, and the limit block 23 is located inside the installation box 21, and the corresponding two push rods 6 extend to the end outside the installation box 21 and are fixedly connected to the baffle 7.

[0026] The four corners of the lower surface of the tension meter body 1 are fixedly connected to connecting rods 5, and the lower ends of the connecting rods 5 are fixedly connected to the pads 4 to increase the contact area with the ground and improve stability. The lower surface of the pads 4 is provided with anti-slip grooves to increase friction. A display screen 2 is provided on the side of the tension meter body 1 for displaying the detection structure. The tension meter body 1 is provided with multiple control keys 3 on the same side as the display screen 2 for controlling the device for detection. The outside of multiple push rods 6 are slidably connected to fixed blocks 12, and the fixed blocks 12 make the force transmission process of the push rods 6 more stable. The upper surfaces of two fixed blocks 12 are fixedly connected to the lower surface of the tension meter body 1, and the lower surfaces of the other two fixed blocks 12 are fixedly connected to the upper surface of the measuring head 10. A protrusion is provided at the bottom of the collection box 19 to facilitate the outflow of liquid. A liquid outlet is provided on the side of the collection box 19 for discharging liquid. The size of the limit block 23 matches the size of the inner wall of the installation frame 24, and the shape of the limit block 23 is the same as the shape of the installation frame 24. The diameter of the placement table 8 matches the diameter of the holding dish 9, and the shape of the placement table 8 is the same as the shape of the holding dish 9.

[0027] Working principle: When in use, first place the sample to be tested into the holding dish 9, and then start the motor 13 through the control key 3 on the tensiometer body 1, and use the rotation of the motor 13 to drive the bidirectional screw rod 16 to rotate, so that the sliders 15 move towards each other, and the movement of the sliders 15 drives the transmission rod 18 to lift, so that the lifting block 17 drives the placement table 8 to rise or fall, and then use the measuring head 10 to detect the sample, so that the staff can adjust the height of the sample table and detect samples with different liquid level heights. The collection box 19 is used to collect accidentally spilled samples for centralized processing. When the baffle 7 is impacted, it will push the push rod 6 to move in the installation box 21, thereby driving the limit block 23 to squeeze the shock-absorbing spring 20 inside the installation frame 24, reducing the impact, thereby buffering, and effectively improving the device's own protection capabilities.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Fully automatic interfacial tension meter, including: A tension meter body (1), a support plate (11) and a measuring head (10), wherein the support plate (11) is mounted on one side of the upper surface of the tension meter body (1), and the measuring head (10) is mounted on the upper end of the support plate (11), characterized in that the upper surface of the tension meter body (1) is fixedly connected to a collecting box (19), the inner bottom of the collecting box (19) is fixedly connected to a lifting box (14), the side of the lifting box (14) is fixedly connected to a motor (13), the output end of the motor (13) is fixedly connected to a bidirectional screw rod (16), and the other end of the bidirectional screw rod (16) is rotated with the inner wall of the lifting box (14). Dynamic connection, two sliders (15) are provided on the outside of the bidirectional screw rod (16), the lower surfaces of the two sliders (15) are slidably connected to the bottom of the lifting box (14), the upper surfaces of the two sliders (15) are both rotatably connected to the transmission rod (18), one end of the two transmission rods (18) is rotatably connected to the lifting block (17), the upper surface of the lifting block (17) is fixedly connected to the placement table (8), the upper end of the placement table (8) extends to the outside of the lifting box (14), and the outer surface of the placement table (8) is slidably connected to the inside of the lifting box (14), and the upper surface of the placement table (8) is provided with a holding dish (9); The upper surface of the measuring head (10) and the lower surface of the tension meter body (1) are fixedly connected to the installation box (21), the interior of the two installation boxes (21) are fixedly connected to the partition plate (25), the two side surfaces of the two partition plates (25) are fixedly connected to the installation frame (24), the inner walls of the plurality of installation frames (24) are fixedly connected to the shock-absorbing spring (20), the interior of the two installation boxes (21) are slidably connected to the two push rods (6), the exterior of one end of the plurality of push rods (6) located inside the installation box (21) is slidably connected to the interior of the shock-absorbing spring (20), the exterior of the plurality of push rods (6) are fixedly connected to the limit block (23), and the limit block (23) is located inside the installation box (21), and the corresponding ends of the two push rods (6) extending to the outside of the installation box (21) are fixedly connected to the baffle (7).

2. The fully automatic interfacial tension meter according to claim 1, wherein: The four corners of the lower surface of the tension meter body (1) are fixedly connected to connecting rods (5), the lower ends of the connecting rods (5) are fixedly connected to pads (4), and the lower surface of the pads (4) is provided with anti-slip grooves.

3. The fully automatic interfacial tension meter according to claim 1, wherein: A display screen (2) is provided on the side of the tension meter body (1), and a plurality of control keys (3) are provided on the same side of the tension meter body (1) as the display screen (2).

4. The fully automatic interfacial tension meter according to claim 1, wherein: The exteriors of the plurality of push rods (6) are all slidably connected to fixed blocks (12), wherein the upper surfaces of two of the fixed blocks (12) are fixedly connected to the lower surface of the tension meter body (1), and the lower surfaces of the other two fixed blocks (12) are fixedly connected to the upper surface of the measuring head (10).

5. The fully automatic interfacial tension meter according to claim 1, wherein: The bottom of the collecting box (19) is provided with a protrusion, and the side of the collecting box (19) is provided with a liquid outlet.

6. The fully automatic interfacial tension meter according to claim 1, wherein: The size of the limiting block (23) matches the size of the inner wall of the installation frame (24), and the shape of the limiting block (23) is the same as that of the installation frame (24).

7. The fully automatic interfacial tension meter according to claim 1, wherein: The diameter of the placement platform (8) matches the diameter of the holding dish (9), and the shape of the placement platform (8) is the same as that of the holding dish (9).

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