Low-temperature instant film solubility detection equipment

Abstract

The invention relates to the field of solubility detection, in particular to low-temperature instant film solubility detection equipment which comprises a sealing plate, a sampling cup and the like. And a sealing plate is slidably connected in the sampling cup. According to the invention, the sealing plate moves upwards and is matched with the rotating ring to separate the upper layer solution, the middle layer solution and the lower layer solution, so that the accuracy in the sampling process is improved; the lifting height of the pull rod is accurately controlled through the scale marks arranged on the pull rod, namely the amount of each layer of solution entering the sample storage cup is accurately controlled, so that accurate control of sampling is realized; undissolved particles are intercepted through the filter screen, and then the filter screen can be placed on heating and drying equipment by a worker to be dried, so that the undissolved particles are obtained on the filter screen, and the operation steps before filtering are reduced; the blocking cover moves downwards, and a solution on the filter screen can be extruded in an air pressure mode, so that the solution permeates the filter screen more quickly, and the benefit in the equipment detection process is improved.

Description

Technical Field

[0001] The invention relates to the field of solubility detection, in particular to a low-temperature instant-dissolving film solubility detection device. Background Art

[0002] The film solubility test is carried out by immersing it in clean water, and then stirring, water bath constant temperature and other operations, the film is dissolved in the clean water. At this time, the worker can observe the undissolved particles in the solution with the naked eye, and the solubility of the film can be judged manually. At the same time, in order to more accurately judge the solubility of the film, after the film is dissolved, the worker divides the solution into three layers: upper, middle and lower layers through a sampling tube for sampling. That is, after the worker inserts the sampling tube to the specified depth to take out the solution, the worker uses a special instrument to judge the residual particles in the solution, and then judges the solubility of the film. However, it is difficult to accurately control the sampling position by manual operation, and most of the solutions after the film is dissolved are turbid. After the sampling tube is inserted, it is difficult for the worker to observe the depth of immersion into the sampling tube. At the same time, after the first sampling of the sampling tube, if the inside of the sampling tube is not cleaned, the residual solution in the sampling tube will be cross-contaminated during the next sampling process, thereby changing the composition and concentration of the sample. Summary of the invention

[0003] In order to overcome the shortcomings of the existing sampling process in which it is difficult to accurately control the sampling position by manual operation, and the residual solution in the sampling tube will cause cross contamination during the next sampling process, affecting the sample concentration, the present invention provides a low-temperature instant film solubility detection device.

[0004] The technical scheme is as follows: a low-temperature instant film solubility detection device, including a sealing plate and a sampling cup; a sealing plate is slidably connected inside the sampling cup; it also includes a swivel, a sample storage cup and a pull rod; a swivel is rotatably connected to the sampling cup; a first overflow port is arranged on the swivel; a plurality of sample storage cups for collecting solutions of different levels are connected to the sampling cup, and the sample storage cups are made of transparent material; a second overflow port is arranged on each sample storage cup; the sampling cups are interconnected up and down; a pull rod is detachably connected to the sealing plate.

[0005] Preferably, a cover plate is also included; a cover plate is detachably connected to the upper side of the rotating ring to prevent the solution from splashing, and a handle is provided on the cover plate.

[0006] Preferably, it also includes a movable rod; a plurality of movable rods for stirring the solution are slidably connected to the lower side of the cover plate.

[0007] Preferably, each sample storage cup is detachably connected to the sampling cup.

[0008] Preferably, scale lines are provided on the pull rod.

[0009] Preferably, it also includes a baffle and a filter; two blocks are provided on the pull rod; an overflow groove is provided in the sampling cup; the overflow groove is located at a position above two-thirds of the height inside the sampling cup; a baffle is detachably connected to the lower side of the pull rod; two blocks are provided on the baffle, and the blocks on the baffle are fitted with the blocks on the pull rod; a filter is fixed to the lower inner part of the sampling cup.

[0010] Preferably, a pressure plate is also included; a pressure plate is fixedly connected to the lower side of the shield to facilitate cleaning of the filter screen.

[0011] Preferably, the shield is configured as a truncated cone as a whole.

[0012] Preferably, the surface of the shield is coated with an anti-adhesion coating.

[0013] Preferably, a plurality of protrusions are arranged on the lower side of the pressing plate.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention realizes the separation of the upper, middle and lower layers of solution by moving the sealing plate upward and cooperating with the rotating ring, thereby improving the accuracy of the sampling process; The rising height of the pull rod can be accurately controlled by the scale line set on the pull rod, that is, the amount of each layer of solution entering the sample storage cup can be accurately controlled to achieve accurate control of sampling; The undissolved particles are intercepted by the filter, and then the workers can place the filter on the heating and drying equipment for drying, thereby obtaining the undissolved particles on the filter, reducing the operation steps before filtration; By moving the shield downward, the solution on the filter can be squeezed by air pressure, so that the solution can penetrate the filter more quickly, thus improving the efficiency of the equipment detection process; The pressing plate is attached to the upper side of the filter, and the particles adhered to the filter are rubbed by rotating the pressing plate, and the particles can be quickly separated by subsequent flushing with clean water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the low-temperature instant dissolving film solubility detection device of the present invention; Figure 2 It is a combined cross-sectional view of the sampling cup and the sample storage cup of the present invention; Figure 3 is a cross-sectional view of a swivel of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the baffle cover and filter screen combination of the present invention; Figure 5 It is a schematic diagram of the installation position of the pressing plate of the present invention.

[0016] In the accompanying drawings: 1-sealing plate, 2-sampling cup, 2001-overflow groove, 3-swivel ring, 3001-first overflow port, 4-sample storage cup, 4001-second overflow port, 5-pull rod, 101-cover plate, 102-movable rod, 201-blocking cover, 202-filter screen, 203-pressing plate. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0018] Example 1 like Figure 1-Figure 3 As shown, a low-temperature instant film solubility detection device comprises a sealing plate 1 and a sampling cup 2; the sealing plate 1 is slidably connected in the sampling cup 2; It also includes a rotating ring 3, a sample storage cup 4 and a pull rod 5; the sampling cup 2 is rotatably connected to the rotating ring 3; the rotating ring 3 is provided with a first overflow port 3001; two sample storage cups 4 are connected to the sampling cup 2, and the sample storage cups 4 are made of transparent material; each sample storage cup 4 is provided with a second overflow port 4001; the sampling cups 2 are interconnected up and down; the sealing plate 1 is detachably connected to the pull rod 5.

[0019] The cover plate 101 is also included; the cover plate 101 is detachably connected to the upper side of the rotating ring 3, and a handle is provided on the cover plate 101.

[0020] It also includes a movable rod 102; a plurality of movable rods 102 are slidably connected to the lower side of the cover plate 101.

[0021] Each sample storage cup 4 is detachably connected to the sampling cup 2 .

[0022] The pull rod 5 is provided with scale lines.

[0023] In the process of testing the solubility of the film, the worker holds the pull rod 5 to drive the sealing plate 1 to be placed on the bottom of the sampling cup 2, and then seals the bottom of the sampling cup 2. At this time, the upper side of the sampling cup 2 is in an unsealed state. Then the worker takes out the film sample and puts it into the sampling cup 2. Then, clean water with a temperature of 15 degrees Celsius is added to the sampling cup 2, and a glass rod is used to stir to accelerate the dissolution of the film, thereby simulating the solubility of the film at low temperature. After the film is dissolved, there are many ways to judge the solubility of the film. It is a relatively simple and convenient way to judge whether there are undissolved particles in the solution by the worker's naked eye. However, this judgment method has a large error, and the residual particles in the solution identified by each worker are different. Therefore, it is necessary to divide the solution into upper, middle and lower layers for sampling respectively. That is, after the worker inserts the sampling tube to the specified depth to take out the solution, a special instrument is used to judge the residual particles in the solution. In order to judge the solubility of the film, it is difficult for workers to accurately control the sampling position manually during the sampling process through the sampling tube, and the solution after the film is dissolved is mostly turbid. After the sampling tube is inserted, it is difficult for workers to observe the depth of immersion into the sampling tube. At the same time, after the first sampling of the sampling tube, if the inside of the sampling tube is not cleaned, the residual solution in the sampling tube will be cross-contaminated during the next sampling process, resulting in changes in the composition and concentration of the sample. Therefore, a rotatable ring 3 is provided on the upper side of the sampling cup 2, and then the worker clamps the two sample storage cups 4 on the left and right sides of the sampling cup 2, and then affixes different labels to the two sample storage cups 4 for the convenience of workers to distinguish. When sampling is required, the worker only needs to pull the pull rod 5 to move upward, thereby driving the sealing plate 1 to move upward. At this time, the solution level between the sampling cup 2 and the sealing plate 1 gradually rises during the upward movement of the sealing plate 1. Figure 2As shown, when the sample storage cup 4 on the right is connected to the sampling cup 2, the first overflow port 3001 is connected to the second overflow port 4001, and when the liquid level is higher than the first overflow port 3001 and the second overflow port 4001, the solution flows out from the first overflow port 3001 and the second overflow port 4001, that is, it flows into the sample storage cup 4 on the right, that is, the uppermost layer of solution is pushed to slowly flow into the sample storage cup 4 on the right. When the worker pulls the pull rod 5 to rise until one-third of the solution inside the sampling cup 2 enters the sample storage cup 4 on the right, the worker rotates the rotating ring 3 180 degrees clockwise based on the view from top to bottom. At this time, the first overflow port 3001 is connected to the second overflow port 4001 of the sample storage cup 4 on the left. Then the worker pulls the pull rod 5 and the sealing plate 1 to continue to move upward, that is, the middle layer of solution flows from the first overflow port 3001 and the second overflow port 4001 to the sample storage cup 4 on the left, while the lower layer of solution remains in the sampling cup 2. Cup 2 and sealing plate 1, in the process of pulling up the pull rod 5, the worker can accurately control the rising height of the pull rod 5 through the scale line set on the pull rod 5, that is, accurately control the amount of each layer of solution entering the sample storage cup 4, thereby improving the accuracy of the sampling process. At the same time, in this way, the upper, middle and lower layers of solution can be simply and effectively stored in the sampling cup 2 and the two sample storage cups 4 respectively, so as to realize precise control of sampling, solve the problem that it is difficult to accurately control the sampling position by manual operation, and avoid cross contamination. After the samples are taken out respectively, the sample storage cups 4 can be removed from the sampling cup 2 respectively, and the solutions in the sample storage cups 4 can be tested separately without interfering with each other. When the sample storage cup 4 is connected to the sampling cup 2, since the three layers of solution are placed in the sampling cup 2 and the two sample storage cups 4 in turn, the worker can more intuitively compare and observe the solubility of the three layers of solution, that is, it is more convenient for the worker to judge the solubility of the three layers of solution with the naked eye.

[0024] It is also considered that a worker plugs the cover plate 101 into the rotating ring 3 to seal the upper side of the sampling cup 2. At the same time, a movable rod 102 is provided on the cover plate 101 so that the movable rod 102 is immersed in the solution. Then, the worker holds the handle on the cover plate 101 to rotate the cover plate 101, thereby driving the movable rod 102 to rotate. Then, under the restriction of the rotating ring 3 and the sampling cup 2, the solution is stirred by the horizontal rotation of the movable rod 102, so that the film is more evenly dispersed and dissolved in the solution. At the same time, the addition of the cover plate 101 also avoids splashing of the solution during the stirring process and avoids the solution from splashing out of the sampling cup 2. When the worker pulls the pull rod 5 and the sealing plate 1 to move upward, the sealing plate 1 pushes the movable rod 102 to move upward to avoid the sealing plate 1 from rising.

[0025] Example 2 On the basis of Example 1, Figure 1 , Figure 4 and Figure 5As shown, it also includes a shield 201 and a filter 202; two blocks are arranged on the pull rod 5; an overflow groove 2001 is arranged in the sampling cup 2; the overflow groove 2001 is located at a position above two-thirds of the height inside the sampling cup 2; the shield 201 is detachably connected to the lower side of the pull rod 5; two blocks are arranged on the shield 201, and the blocks on the shield 201 are fitted with the blocks on the pull rod 5; the filter 202 is fixedly connected to the lower inner part of the sampling cup 2.

[0026] The shield 201 further includes a pressing plate 203 ; the pressing plate 203 is fixedly connected to the lower side of the shield 201 .

[0027] The shield 201 is configured as a truncated cone as a whole.

[0028] The surface of the shield 201 is coated with an anti-adhesion coating to prevent the solution and particles from adhering to the surface of the shield 201, so that the solution and particles are fully discharged to the filter screen 202 for observation by the staff.

[0029] A plurality of protrusions are arranged on the lower side of the pressing plate 203 .

[0030] In the method of detecting the solubility of the film, when undissolved particles remain in the solution, the particles will sink to the bottom of the sampling cup 2 due to the high density of the particles. The worker will pour the lower solution on the surface of the filter paper. After the solution passes through the filter paper smoothly, the undissolved particles will remain on the surface of the filter paper. The filter paper is then dried and heated, and the particles remaining on the surface of the filter paper are observed. This can also be used to judge the solubility of the film. However, the existing method requires the addition of additional filtering equipment, and the folding, wetting and placement of the filter paper are more complicated. Therefore, when the sealing plate 1 in Example 1 is not used to detect the solubility of the film, the sealing plate 1 in Example 1 is used to detect the solubility of the film. When the lower side of the sampling cup 2 is sealed, the worker first removes the sealing plate 1 from the pull rod 5, assembles the shield 201 on the lower side of the pull rod 5, and seals the lower side of the sampling cup 2 through the shield 201, that is, the particles fall on the upper side of the shield 201. Then the worker can pull the pull rod 5 to move upward, thereby driving the shield 201 to move upward. It should be noted that when the side of the shield 201 is lower than the overflow groove 2001, the bottom of the sampling cup 2 can be sealed by the shield 201, and when the shield 201 is pulled up, the side of the shield 201 is higher than the overflow groove 2001, and the solution flows from the shield 201 and the overflow groove 2001. The liquid flows downward through the gap between the flow slots 2001 and then flows to the filter screen 202, where the undissolved particles are intercepted. Then, the worker can directly place the sampling cup 2, the shield 201 and the filter screen 202 on the heating and drying equipment for drying, thereby obtaining the undissolved particles on the filter screen 202, reducing the number of operation steps before filtration. At the same time, no additional filtering equipment is required, and the residual particles are obtained simply and effectively, thereby improving the convenience of the equipment when in use. Furthermore, the shield 201 is set to be a truncated cone, so that the solution and the particles are all along the shield 201. The upper inclined surface flows toward the filter 202 to prevent residual solution and particles on the upper side of the shield 201. At the same time, when the solution has flowed away from the upper side of the shield 201, the worker can also press the pull rod 5 to move downward to reset the shield 201, that is, to reseal the lower side of the sampling cup 2 and the upper side of the filter 202. At this time, the worker continues to press the shield 201 to move downward to push the gas out from the mesh of the filter 202, and then the solution on the filter 202 can be pushed by the airflow, so that the solution can penetrate the filter 202 more quickly, thereby improving the efficiency of the equipment detection process.

[0031] It is also taken into consideration that the particles remaining in the solution are easily adhered to the upper side of the filter 202 after drying. When the solution needs to be tested again, the residual particles are likely to affect the subsequent judgment of the solubility of the film. Therefore, a pressure plate 203 is provided on the lower side of the baffle 201, and the baffle 201 is pressed to move downward so that the pressure plate 203 is attached to the upper side of the filter 202. Then the worker rotates the pull rod 5, thereby driving the baffle 201 and the pressure plate 203 to rotate, thereby rubbing the particles adhered to the filter 202. Subsequently, the workers only need to rinse the lower side of the filter 202 with clean water to quickly separate the particles on the filter 202. Furthermore, by providing a plurality of bumps on the lower side of the pressure plate 203, the particles can be more effectively removed from the filter 202.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A low-temperature instant film solubility detection device, comprising a sealing plate (1) and a sampling cup (2); the sealing plate (1) is slidably connected inside the sampling cup (2); the characteristics are: The invention also comprises a rotating ring (3), a sample storage cup (4) and a pull rod (5); the sampling cup (2) is rotatably connected to the rotating ring (3); the rotating ring (3) is provided with a first overflow port (3001); the sampling cup (2) is connected to a plurality of sample storage cups (4) for collecting solutions at different levels, and the sample storage cups (4) are made of transparent material; each sample storage cup (4) is provided with a second overflow port (4001); the sampling cup (2) is interconnected at the top and the bottom; and the sealing plate (1) is detachably connected to the pull rod (5).

2. A low-temperature instant dissolving film solubility detection device according to claim 1, characterized in that: It also includes a cover plate (101); the cover plate (101) is detachably connected to the upper side of the rotating ring (3) to prevent the solution from splashing, and a handle is provided on the cover plate (101).

3. A low-temperature instant dissolving film solubility detection device according to claim 2, characterized in that: It also includes movable rods (102); a plurality of movable rods (102) for stirring the solution are slidably connected to the lower side of the cover plate (101).

4. A low-temperature instant dissolving film solubility detection device according to claim 1, characterized in that: Each sample storage cup (4) is detachably connected to the sampling cup (2).

5. A low-temperature instant dissolving film solubility detection device according to claim 1, characterized in that: The pull rod (5) is provided with scale lines.

6. A low-temperature instant dissolving film solubility detection device according to claim 5, characterized in that: It also includes a shield (201) and a filter (202); two blocks are provided on the pull rod (5); an overflow groove (2001) is provided in the sampling cup (2); the overflow groove (2001) is located at a position above two-thirds of the height inside the sampling cup (2); the shield (201) is detachably connected to the lower side of the pull rod (5); two blocks are provided on the shield (201), and the blocks on the shield (201) fit with the blocks on the pull rod (5); and the filter (202) is fixedly connected to the lower inner side of the sampling cup (2).

7. A low-temperature instant dissolving film solubility detection device according to claim 6, characterized in that: It also includes a pressing plate (203); a pressing plate (203) is fixedly connected to the lower side of the baffle (201) for facilitating cleaning of the filter screen (202).

8. A low-temperature instant dissolving film solubility detection device according to claim 7, characterized in that: The baffle (201) is configured as a truncated cone as a whole.

9. A low-temperature instant dissolving film solubility detection device according to claim 8, characterized in that: The surface of the baffle (201) is coated with an anti-adhesion coating.

10. A low-temperature instant dissolving film solubility detection device according to claim 7, characterized in that: A plurality of protrusions are arranged on the lower side of the pressing plate (203).

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