Sodium monofluorophosphate total fluorine content detection device for toothpaste industry

Abstract

The utility model discloses a sodium monofluorophosphate total fluorine content detection device for the toothpaste industry. The sodium monofluorophosphate total fluorine content detection device comprises a box body, a box cover, a buckle assembly and an adjusting assembly, the box body is of a hollow structure, the box cover is detachably installed at the upper end of the box body, the buckle assemblies are symmetrically installed on the two outer side walls of the box body, and closing and loosening of the box cover are controlled through the buckle assemblies; reinforcing assemblies are fixedly installed on the two outer side walls, perpendicular to the buckle assemblies, of the box body, and further reinforcement is achieved through the reinforcing assemblies. Inclined rotation of internal test tubes can be controlled from the outside of the box body through the arranged adjusting assembly, and on one hand, a sample solution and a hexamethyldisilyl perchlorate saturated solution are effectively isolated through the independently arranged adjusting assembly; on the other hand, the controllability of the internal reaction can be achieved through the arrangement of rotary adjustment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a sodium monofluorophosphate total fluorine content detection device for toothpaste industry. BACKGROUND

[0002] Sodium monofluorophosphate (MFP) is a high-value-added fluorine-containing inorganic fine chemical, which is mainly used as an anti-caries fluoride toothpaste additive and plays the roles of anti-caries, desensitization, sterilization, preservation and repair. Moreover, the normal-temperature aqueous solution of sodium monofluorophosphate does not corrode human bones and teeth and does not affect the normal growth of children's bones and teeth, so it is the current mainstream fluoride toothpaste additive.

[0003] The current product standard for sodium monofluorophosphate for toothpaste industry is GB 24567-2009 "Sodium Monofluorophosphate for Toothpaste Industry", which requires that the total fluorine (calculated as F) is greater than or equal to 13%, and the diffusion box method is used to detect the item: the sample solution is acidified with previously saturated perchloric acid with hexamethyldisiloxane to form hydrophobic trimethylfluorosilane, which is absorbed by an alkaline solution, and F ions are hydrolyzed in the absorption solution. The concentration of fluoride ions in the test solution is measured by using a fluoride ion selective electrode as a measuring electrode and a saturated mercury-mercury electrode as a reference electrode. Among them, the "diffusion" and "absorption" steps are completed in the diffusion box.

[0004] The structure of the diffusion box is also specified during the detection, but it is found in actual detection work that the recovery rate is often low when the diffusion box specified in the standard is used to detect the total fluorine content of sodium monofluorophosphate. The reason is that the structure of the diffusion box in the standard is unreasonable.

[0005] Firstly, the diffusion box and the box cover are combined by screwing, and the sealing effect is achieved by smearing vaseline or vacuum grease. The process of screwing the screw is relatively long, and the test solution may have started to react with the hexamethyldisiloxane saturated perchloric acid solution during this period, thereby causing the trimethylfluorosilane to escape.

[0006] Secondly, the sealing performance of the diffusion box is poor, which causes the HF produced in the reaction to escape and the absorption to be incomplete, resulting in a low recovery rate. Thirdly, the height of the absorption cell in the diffusion box is low, and during the shaking process of the swing instrument, the mixed solution of the test sample solution and the hexamethyldisiloxane saturated perchloric acid solution outside the absorption cell enters the absorption cell with the shaking, thereby increasing the volume of the alkali solution in the absorption cell and causing the calculation result to be smaller. Therefore, the existing diffusion box still has defects to some extent.

[0007] Therefore, a sodium monofluorophosphate total fluorine content detection device for toothpaste industry is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0008] In order to solve the above technical problems, the utility model discloses a kind of sodium monofluorophosphate total fluorine quantity detection devices for toothpaste industry, the detection device uses the mode of buckle fixed instead of traditional by screw rotation fixed mode, fast realizes the fixed of stable, further consolidate fixed structure after being fixed;Can effectively prevent the case that insufficient sealing causes trimethylfluorosilane to run out, in addition, the device is also provided with corresponding adjusting assembly, can control the inclination of internal test tube from outside, so it can effectively isolate sample solution and perchloric acid hexamethyldisiloxane saturated solution;Increase controllability of reaction occurrence;The height of absorption cell is adjusted simultaneously, can effectively solve the mixed solution of sample solution, perchloric acid hexamethyldisiloxane saturated solution outside absorption cell, with shaking into absorption cell, increase the problem of alkali volume in absorption cell.

[0009] In order to achieve the above technical effects, the utility model discloses a kind of sodium monofluorophosphate total fluorine quantity detection devices for toothpaste industry, including: box, box cover, buckle assembly, adjusting assembly;The box is hollow structure, and the upper end of box is detachably installed the box cover, the two outer side walls of the box are symmetrically installed the buckle assembly, and the closing and relaxation of box cover are controlled by buckle assembly;The two outer side walls of the box are fixedly installed with reinforcing assembly vertically the buckle assembly, further reinforce by reinforcing assembly;

[0010] The box is hollow structure, and the inside bottom end of box is fixedly provided with absorption cell;Opposite absorption cell has round hole on the inner side wall of the box, and the adjusting assembly is installed on the round hole, the side wall of the round hole is provided with arc-shaped sliding slot, and the adjusting assembly includes: rotating handle, pressing column, clamping block, second spring, test tube clamp;The rotating handle is rotatably installed on the round hole, and the pressing column is movably installed in the rotating handle, the distal end of pressing column is fixedly installed with strutting rod, first spring is sleeved between pressing column and rotating handle, one end of first spring is fixedly connected on pressing column, and the other end is fixedly connected on rotating handle, and the clamping block and control handle are separate structure;The fixing and movement of fixed clamp are realized by the clamping and relaxation of clamping block;

[0011] Further, the clamping block is square structure, and the rotating handle is cylindrical structure, and the control rotation of rotating handle is realized by the clamping of square structure of clamping block;

[0012] Further, the buckle assembly comprises: a locking knob and a first supporting block; the first supporting block is fixedly installed on the side wall of the box body, the upper end and the side end of the first supporting block are respectively provided with a vertical slot and a horizontal slot, and the vertical slot and the horizontal slot intersect with each other; the locking knob is in the form of a threaded rod, and the locking knob is respectively provided with a movable column and a fixed column; the movable column is installed at the tail end, and the fixed column is installed at the middle part; the column is fixedly installed on the horizontal slot, and the movable column is movably installed on the horizontal slot; arc-shaped cutting surfaces are formed in the outer side walls of the movable column and the fixed column; the rotation of the locking knob is controlled to control the movable column to approach or move away from the fixed column to lock or release the limiting column installed at the lower end of the box cover;

[0013] Further, the reinforcing assembly comprises a second supporting block and a rotating plate, and the rotating plate is movably installed on the second supporting block; an extension block is arranged at the tail end of the rotating plate in parallel with the box body, and a fixed bead is fixedly installed at the lower end of the extension block;

[0014] Further, the upper end of the box cover is fixedly provided with a handle, and the lower end is fixedly provided with two protrusions; the outer protrusion is inclined outward, the inner protrusion is inclined inward, and a sealing ring is detachably installed between the protrusions; an outer frame strip is fixedly arranged at the upper end edge of the box cover, and the outer frame strip and the fixed column form a limiting position;

[0015] Further, the height of the absorption cell is higher than the height of the test tube.

[0016] The beneficial effects of the utility model are:

[0017] The utility model discloses a sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry, which comprises a box body, a box cover, a buckle assembly and an adjusting assembly, wherein the box body is of a hollow structure, the box cover is detachably installed at the upper end of the box body, the buckle assembly is symmetrically installed on the two outer side walls of the box body, and the closing and releasing of the box cover are controlled through the buckle assembly; the reinforcing assembly is fixedly installed on the two outer side walls of the box body perpendicular to the buckle assembly, and further reinforcement is realized through the reinforcing assembly; the adjusting assembly can be used to control the inclined rotation of the test tube in the box body from the outside, and the adjusting assembly is separately arranged, which can effectively isolate the sample solution from the hexamethyldisiloxane perchlorate saturated solution on one hand, and the controllability of the internal reaction can be realized through the rotating adjustment on the other hand.

[0018] In addition, the box cover and the box body can be quickly closed through the buckle assembly, the buckle fixing mode is used to replace the traditional screw installation mode, the problem that the calculation result is small due to the reaction of the test solution and the hexamethyl disiloxane perchlorate saturated solution and the dispersion of trimethyl fluorosilane in the process of screwing the screw port can be effectively solved, in addition, the fixation can be further carried out through the reinforcing assembly, and the loosening of the buckle mechanism will not cause the loosening of the box cover and the dispersion of trimethyl fluorosilane after fixation; as a double insurance, the determination process is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment description.

[0020] Figure 1 It is a kind of whole structure schematic diagram of sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry;

[0021] Figure 2 It is the front view of sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry;

[0022] Figure 3 It is the side view of sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry;

[0023] Figure 4 It is the explosion view of sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry;

[0024] Figure 5 It is the structure view of locking knob part of sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry;

[0025] Figure 6 It is the internal structure schematic diagram of sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry;

[0026] Figure 7 It is the inside structure schematic diagram of box cover of sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry;

[0027] Figure 8 It is the cross-sectional view of sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry;

[0028] Figure 9 It is another cross-sectional view of sodium monofluorophosphate total fluorine quantity detection device for toothpaste industry.

[0029] In the drawings, the component list represented by each sign is as follows:

[0030] 1-box, 11-buckle assembly, 111-first support block, 1111-vertical slot, 1112-horizontal slot, 112-locking knob, 1121-movable column, 1122-fixed column, 1123-arc-shaped section, 12-reinforcing assembly, 121-second support block, 122-rotating plate, 123-extended block, 124-fixed bead, 13-adjusting assembly, 131-arc-shaped sliding slot, 132-round hole, 133-tube clamp, 134-rotating handle, 135-pressing column, 1351-first spring, 136-spreading rod, 137-clamping block, 138-second spring, 2-box cover, 21-handle, 22-protrusion, 23-limiting column, 24-outer frame strip, 25-sealing ring, 3-absorption pool, 4-tube. DETAILED DESCRIPTION

[0031] Embodiment 1

[0032] A device for detecting total fluorine content of sodium monofluorophosphate in toothpaste industry, comprising: a box 1, a box cover 2, a buckle assembly 11, and an adjusting assembly 13; the box 1 is a hollow structure, the box cover 2 is detachably installed at an upper end of the box 1, the buckle assembly 11 is symmetrically installed on two outer side walls of the box 1, and the closing and relaxation of the box cover 2 are controlled through the buckle assembly 11; the reinforcing assembly 12 is fixedly installed on the two outer side walls of the box 1 perpendicular to the buckle assembly 11, and is further reinforced through the reinforcing assembly 12;

[0033] The box 1 is a hollow structure, an absorption pool 3 is fixedly arranged at one side of an inner bottom end of the box 1, the height of the absorption pool 3 is higher than the height of a tube 4, the absorption pool 3 is further heightened, and the problem that the mixed solution of the sample solution and the saturated solution of hexamethyldisiloxane perchlorate outside the absorption pool 3 enters the absorption pool 3 with shaking and increases the alkali volume in the absorption pool 3 is effectively solved; a round hole 132 is arranged on an inner side wall of the box 1 opposite to the absorption pool 3, the adjusting assembly 13 is installed on the round hole 132, the sample solution and the saturated solution of hexamethyldisiloxane perchlorate can be isolated through the separately arranged adjusting assembly 13, and the controllability of the internal reaction can be achieved through the rotation of the adjusting assembly 13;

[0034] Specific, the side wall of the round hole 132 is provided with an arc-shaped sliding groove 131, the adjusting assembly 13 comprises: a rotating handle 134, a pressing column 135, a clamping block 137, a second spring 138, and a test tube clamp 133; the rotating handle 134 is rotatably installed on the round hole 132, the pressing column 135 is movably installed in the rotating handle 134, the distal end of the pressing column 135 is fixedly installed with a strutting rod 136, the first spring 1351 is sleeved between the pressing column 135 and the rotating handle 134, one end of the first spring 1351 is fixedly connected to the pressing column 135, and the other end is fixedly connected to the rotating handle 134; the clamping block 137 and the control handle are in a separated structure; the fixing and movement of the fixed clamp are realized by clamping and loosening of the clamping block 137; the rotation and fixing between two fixed clamps can be realized, specifically, one is fixed and the other is movable; the pouring of different test tubes 4 at different heights can be realized; the specific process is that when the upper end needs to be fixed and the lower end needs to be slid, the pressing column 135 at the lower end is pressed, under the action of the pressing column 135, the strutting rod 136 moves inward to support the clamping block 137 until the clamping block 137 moves to the position of the arc-shaped sliding groove 131, at this time, the rotating handle 134 at the upper end is rotated to realize the pouring of the test tube 4 with the upper end as the rotating center, and the pouring of the lower end can be realized in the same way; of course, during the realization of the above pouring process, the separated end of the test tube clamp 133 is installed on the sliding groove (conventional setting, not shown in the figure); the clamping block 137 is a square clamping block 137; the clamping block 137 is a square structure, the rotating handle 134 is a cylindrical structure, the control rotation of the rotating handle 134 is realized by clamping of the square structure of the clamping block 137; the principle of the action is that the square clamping groove is arranged on the end face of the cylinder, and the clamping block 137 is in a separated form, so that the fixing and rotation can be realized;

[0035] Example 2

[0036] In the embodiment, the buckle assembly 11 can quickly close the box cover 2 and the box body 1, and the buckle fixing mode can effectively solve the problem that the reaction of the test solution and the saturated solution of hexamethyl disiloxane perchlorate starts in the process of screwing the screw port, trimethylsilyl fluoride is dispersed, and the calculation result is small. Specifically, the buckle assembly 11 comprises a locking knob 112 and a first supporting block 111. The first supporting block 111 is fixedly installed on the side wall of the box body 1. The upper end and the side end of the first supporting block 111 are respectively provided with a vertical groove 1111 and a horizontal groove 1112, and the vertical groove 1111 and the horizontal groove 1112 intersect with each other. The locking knob 112 is in the form of a threaded rod. The locking knob 112 is respectively provided with a movable column 1121 and a fixed column 1122. The movable column 1121 is installed at the end, and the fixed column 1122 is installed in the middle. The column is fixedly installed on the horizontal groove 1112, and the movable column 1121 is movably installed on the horizontal groove 1112. The outer side wall of the movable column 1121 and the fixed column 1122 is provided with an arc-shaped surface 1123. The rotation of the locking knob 112 controls the movable column 1121 to approach or move away from the fixed column 1122 to lock or loosen the limiting column 23 installed at the lower end of the box cover 2. In use, after the box cover 2 is covered, the limiting column 23 on the box cover 2 will pass through the vertical groove 1111. At this time, the rotation handle 134 is rotated, and the rotation of the handle will drive the movable column 1121 to approach the fixed column 1122. At this time, the arc-shaped surface 1123 provided on the outer side wall of the movable column 1121 and the fixed column 1122 will move and form a fixed action with the limiting column 23. At this time, the fixing is completed, and a friction coating or rubber can be provided on the arc-shaped surface 1123 to increase the fixing effect.

[0037] Embodiment 3

[0038] In the embodiment, the reinforcing assembly 12 can be further fixed. After fixing, the loosening of the buckle mechanism will not cause the box cover 2 to loosen and cause trimethylsilyl fluoride to escape. As a double insurance, the determination process is effectively ensured. Specifically, the reinforcing assembly 12 comprises a second supporting block 121 and a rotating plate 122. The rotating plate 122 is movably installed on the second supporting block 121. The end of the rotating plate 122 is provided with an extension block 123 parallel to the box body 1. The lower end of the extension block 123 is fixedly installed with a fixed bead 124. In order to ensure that the fixed bead 124 can form a limiting action, the rotating shaft of the rotating plate 122 is a damping rotating shaft. At the same time, the fixed column 1122 has a certain elasticity. When the outer frame strip 24 on the box cover 2 is fixed, the fixed column 1122 can effectively form a fixed action (the principle is similar to the fixing form of the pen cap and the pen body)

[0039] Meanwhile, in the embodiment, based on the above, the upper end middle part of the box cover 2 is fixedly provided with a handle 21, which is convenient for taking and placing, and the lower end is fixedly provided with a protrusion 22, two protrusions 22 are provided, the outer protrusion 22 is inclined outward, and the inner protrusion 22 is inclined inward, which is convenient for the connection of the box cover 2 and the box body 1, and compared with the traditional mechanism, the sleeve connection and fixing can be quickly performed, if it is simply upright, the position needs to be continuously moved for alignment and fixing, and in the process, the reaction may occur, corresponding gas is caused to escape, and then the calculation result is deviated, the protrusion 22 is provided for quick multi-layer installation, the seal ring 25 is detachably installed between the protrusions 22, the seal ring 25 forms a good sealing effect, and the upper end edge of the box cover 2 is fixedly provided with an outer frame strip 24, the outer frame strip 24 and the fixed bead 124 form a limit to each other, and further fixing is performed.

[0040] The above disclosed preferred embodiments of the utility model are only used for helping to describe the utility model, the preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation mode.

Claims

1. A device for detecting the total amount of sodium monofluorophosphate in the toothpaste industry, characterized by, Include: Box body, box cover, buckle assembly, adjusting assembly; the box body is a hollow structure, the upper end of the box body is detachably installed with the box cover, the two outer side walls of the box body are symmetrically installed with the buckle assembly, and the closing and relaxation of the box cover are controlled through the buckle assembly; the two outer side walls of the box body perpendicular to the buckle assembly are fixedly installed with reinforcing assemblies, and further reinforcement is achieved through the reinforcing assemblies; The box body is a hollow structure, and an absorption pool is fixedly arranged on one side of the inner bottom end of the box body; a circular hole is formed on the inner side wall of the box body opposite to the absorption pool, the adjusting assembly is installed on the circular hole, and an arc-shaped sliding groove is formed on the side wall of the circular hole; the adjusting assembly comprises a rotating handle, a pressing column, a clamping block, a second spring and a test tube clamp; the rotating handle is rotatably installed on the circular hole, the pressing column is movably installed in the rotating handle, a straining rod is fixedly installed at the tail end of the pressing column, a first spring is sleeved between the pressing column and the rotating handle, one end of the first spring is fixedly connected to the pressing column, and the other end is fixedly connected to the rotating handle; the clamping block and the control handle are in separated structure; the fixing and movement of the fixed clamp are realized through the clamping and relaxation of the clamping block.

2. A device for detecting the total fluorine amount of sodium monofluorophosphate for toothpaste industry according to claim 1, characterized in that, The clamping block is a square structure, and the rotating handle is a cylindrical structure; the rotating handle is controlled to rotate through the clamping of the square structure of the clamping block.

3. A device for detecting the total fluorine amount of sodium monofluorophosphate for toothpaste industry according to claim 1, characterized in that, The buckle assembly comprises a locking knob and a first support block; the first support block is fixedly installed on the side wall of the box body, vertical grooves and horizontal grooves are respectively formed in the upper end and the side end of the first support block, and the vertical grooves and the horizontal grooves intersect with each other; the locking knob is in the form of a threaded rod, and a movable column and a fixed column are respectively installed on the locking knob; the movable column is installed at the tail end, the fixed column is installed in the middle, the column is fixedly installed on the horizontal groove, and the movable column is movably installed on the horizontal groove; arc-shaped sections are formed in the outer side walls of the movable column and the fixed column; the locking or relaxation of the limiting column installed at the lower end of the box cover is controlled by controlling the rotation of the locking knob to control the movable column to approach or move away from the fixed column.

4. The device for detecting total fluorine amount of sodium monofluorophosphate for toothpaste industry according to claim 1, characterized in that, The reinforcing assembly comprises a second support block and a rotating plate, the rotating plate is movably installed on the second support block, an extension block is fixedly installed on the lower end of the extension block, and a fixed bead is fixedly installed on the lower end of the extension block.

5. The device for detecting total fluorine amount of sodium monofluorophosphate for toothpaste industry according to claim 1, characterized in that, The upper end of the box cover is fixedly provided with a handle in the middle, and the lower end is fixedly provided with a protrusion; the protrusion is provided with two, the outer protrusion is inclined outward, the inner protrusion is inclined inward, a sealing ring is detachably installed between the protrusions, an outer frame strip is fixedly arranged on the upper end edge of the box cover, and the outer frame strip and the fixed column form a limiting position.

6. A device for detecting the total fluorine amount of sodium monofluorophosphate for toothpaste industry according to claim 1, characterized in that, The height of the absorption pool is higher than the height of the test tube.

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