Transdermal diffusion test instrument

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a transdermal diffusion test instrument which comprises a placing platform, a rectangular box is arranged above the placing platform, and a clamping mechanism is arranged in the rectangular box; and the four clamping mechanisms comprise sliding rails fixedly installed at the top of the rectangular box, two movable blocks are installed on the outer walls of the sliding rails in a sliding mode, two L-shaped rods are installed on the two sides of the sliding rails in a hinged mode correspondingly, and first adjusting grooves and second adjusting grooves are formed in the outer walls of the four L-shaped rods correspondingly. A hydraulic cylinder is started, an output shaft of the hydraulic cylinder stretches out and draws back to drive a connecting block and a moving block to move in the vertical direction, the moving block drives an L-shaped rod to rotate around a hinge point hinged to the outer wall of a sliding rail, and a first T-shaped column and a second T-shaped column slide in a first adjusting groove and a second adjusting groove correspondingly; the L-shaped rods drive the corresponding movable blocks to move close to or away from each other on the outer walls of the sliding rails, and the movable blocks drive the corresponding clamping blocks to move together.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, in particular to a transdermal diffusion test instrument. Background Art

[0002] The technology of transdermal diffusion test instruments originated from in-depth research in the fields of skin physiology, drug delivery systems, and chemical analysis. As people's understanding of skin barrier function, drug transdermal absorption mechanism, and permeability of cosmetic ingredients continues to improve, transdermal diffusion test instruments have gradually become an indispensable tool for studying these fields.

[0003] Traditional transdermal diffusion test instruments often use a spring plus knob method to fix the diffusion tube. Although this method can meet basic experimental needs, it has some limitations: First, the spring and knob fixing method may become loose or deformed after long-term use or when subjected to external force, thereby affecting the fixation stability of the diffusion tube. This instability may cause deviations in experimental results and affect the accuracy and reliability of the experiment. Second, the spring plus knob method has certain limitations in terms of accuracy. Since there may be certain errors in the elasticity of the spring and the adjustment range of the knob, it needs to be improved and optimized. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a transdermal diffusion test instrument, which solves the problem of unstable clamping.

[0005] To achieve the above object, the present invention provides the following technical solution: a transdermal diffusion test instrument, comprising a placement platform, a rectangular box is provided above the placement platform, and a clamping mechanism is provided inside the rectangular box;

[0006] The clamping mechanism has four groups including slide rails fixedly mounted on the top of the rectangular box, two movable blocks are slidably mounted on the outer wall of the slide rails, two L-shaped rods are hingedly mounted on both sides of the slide rails, and an adjustment slot 1 and an adjustment slot 2 are respectively opened on the outer walls of the four L-shaped rods, two T-shaped columns 2 are fixedly mounted on both sides of the two movable blocks, and the four T-shaped columns 2 are slidably connected to the adjacent adjustment slots 2, and a moving block is provided inside the rectangular box, two T-shaped columns 1 are fixedly mounted on both sides of the moving block, and the four T-shaped columns 1 are slidably connected to the adjacent adjustment slots 1.

[0007] Preferably, two fixed blocks are fixedly installed on the top of the placement platform, and a rotating rod 1 is rotatably installed on the side of the two fixed blocks close to each other. The sides of the two rotating rods 1 close to each other are fixedly connected to the rectangular box, and half-tooth blocks are fixedly sleeved on the outer walls of the two rotating rods 1.

[0008] Preferably, a rotating rod 2 is rotatably installed on one side of the two fixed blocks that are close to each other, a section of the rotating rod 2 extends out of the corresponding fixed block, a tooth column is fixedly sleeved on the outer wall of the rotating rod 2, the tooth column is engaged with the two half tooth blocks, and a motor is fixedly installed on the top of the placement platform, and the output shaft of the motor is fixedly connected to the adjacent rotating rod 2.

[0009] Preferably, a limiting protrusion is fixedly installed on the top of the slide rail, and limiting grooves are respectively provided on the inner walls of the two movable blocks, and the two limiting grooves are adapted to the limiting protrusion and are slidably connected to the limiting protrusion.

[0010] Preferably, a clamping block is fixedly mounted on the top of each of the two movable blocks, and an arc-shaped groove is formed on each side of the two clamping blocks that are close to each other.

[0011] Preferably, a circular island is fixedly installed on the top of the rectangular box, the circular island is located between the two clamping blocks, and a circular groove is formed on the top of the circular island.

[0012] Preferably, the four moving blocks are fixedly connected to each other on one side by connecting blocks, a hydraulic cylinder is fixedly mounted on the inner wall of the bottom of the rectangular box, and the output shaft of the hydraulic cylinder is fixedly connected to the adjacent connecting blocks.

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

[0014] The utility model drives the connecting block and the movable block to move, and the movable block drives the L-shaped rod to rotate at the hinge point hinged on the outer wall of the slide rail, and the L-shaped rod drives the corresponding movable block and the clamping block to move closer to or away from each other on the outer wall of the slide rail. Compared with the traditional device, it realizes effective and stable clamping of the diffusion tube. Through the precise control of the hydraulic cylinder, the movable block and the clamping block can respond to the experimental needs quickly and accurately, which greatly reduces the operating burden of the experimenter, not only improves the experimental efficiency, but also reduces the errors caused by human factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the tooth column structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the side cross-sectional structure of the rectangular box of the utility model;

[0018] Figure 4 This is a schematic diagram of the front structure of the clamping mechanism of the utility model;

[0019] Figure 5 This is a schematic diagram of the side structure of the clamping mechanism of the utility model;

[0020] Figure 6 This is a schematic diagram of the exploded structure of the clamping mechanism of the utility model;

[0021] Figure 7 This is a schematic diagram of the limiting groove structure of the utility model.

[0022] In the figure: 1. Placement platform; 2. Fixed block; 3. Turning rod 1; 4. Rectangular box; 5. Half-tooth block; 6. Motor; 7. Turning rod 2; 8. Tooth column; 9. Hydraulic cylinder; 10. Connecting block; 11. Moving block; 1101. T-shaped column 1; 12. L-shaped rod; 1201. Adjusting slot 1; 1202. Adjusting slot 2; 13. Slide rail; 1301. Limiting protrusion; 14. Movable block; 1401. Limiting groove; 1402. T-shaped column 2; 15. Clamping block; 1501. Arc groove; 16. Circular island; 1601. Circular groove. 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 present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figures 1 to 7 As shown, the utility model provides a transdermal diffusion test instrument, comprising a placement platform 1, a rectangular box 4 is provided above the placement platform 1, and a clamping mechanism is provided inside the rectangular box 4;

[0025] The clamping mechanism has four groups including a slide rail 13 fixedly installed on the top of the rectangular box 4, two movable blocks 14 are slidably installed on the outer wall of the slide rail 13, two L-shaped rods 12 are hingedly installed on both sides of the slide rail 13, and the outer walls of the four L-shaped rods 12 are respectively provided with an adjustment groove 1201 and an adjustment groove 2 1202, T-shaped column 2 1402 is fixedly installed on both sides of the two movable blocks 14, and the four T-shaped column 2 1402 is slidably connected to the adjacent adjustment groove 2 1202, and a moving block 11 is provided inside the rectangular box 4, and two T-shaped column 1101 is fixedly installed on both sides of the moving block 11, and the four T-shaped column 1101 is slidably connected to the adjacent adjustment groove 1201.

[0026] By starting the hydraulic cylinder 9, the output shaft of the hydraulic cylinder 9 telescopically drives the connecting block 10 and the movable block 11 to move in the vertical direction, and the movable block 11 drives the L-shaped rod 12 to rotate at the hinge point hinged on the outer wall of the slide rail 13, so that the T-shaped column 1101 and the T-shaped column 2 1402 slide in the adjustment groove 1201 and the adjustment groove 2 1202 respectively, and the L-shaped rod 12 drives the corresponding movable block 14 to move closer to or away from each other on the outer wall of the slide rail 13, and the movable block 14 drives the corresponding clamping block 15 to move together. Compared with the traditional device, the coordinated work of the movable block 14 and the clamping block 15 realizes effective and stable clamping of the diffuser.

[0027] like Figures 1 to 3 As shown, two fixed blocks 2 are fixedly installed on the top of the placement platform 1, and the sides of the two fixed blocks 2 close to each other are rotatably installed with rotating rods 3. The sides of the two rotating rods 3 close to each other are fixedly connected to the rectangular box 4, and the outer walls of the two rotating rods 3 are fixedly sleeved with half-tooth blocks 5.

[0028] By starting the motor 6, the output shaft of the motor 6 drives the rotating rod 2 7 to rotate, the rotating rod 2 7 drives the gear column 8 to rotate, the gear column 8 engages with the two half-tooth blocks 5 to drive the two half-tooth blocks 5 to rotate, the two half-tooth blocks 5 respectively drive the rotating rod 1 3 to rotate, and the two rotating rods 1 3 both drive the rectangular box 4 to rotate together. During the diffusion experiment, this system can make the bottom of the diffusion tube add the remaining receiving liquid in a tilted manner. This operation not only facilitates the smooth addition of liquid, but also helps to achieve the automatic exhaust function.

[0029] like Figures 1 to 3 As shown, a rotating rod 2 7 is rotatably installed on one side of the two fixed blocks 2 that are close to each other. A section of the rotating rod 2 7 extends out of the corresponding fixed block 2. A tooth column 8 is fixedly sleeved on the outer wall of the rotating rod 2 7. The tooth column 8 is engaged with the two half tooth blocks 5. A motor 6 is fixedly installed on the top of the placement platform 1, and the output shaft of the motor 6 is fixedly connected to the adjacent rotating rod 2 7.

[0030] By using the motor 6 as the power source, the automatic driving of the rotating rod 2 7 and the gear column 8 is realized. The precise meshing relationship between the gear column 8 and the two half gear blocks 5 ensures that the rotating rod 2 7 can stably drive the two half gear blocks 5 to move synchronously when rotating.

[0031] like Figure 6 As shown, a limiting protrusion 1301 is fixedly installed on the top of the slide rail 13, and limiting grooves 1401 are respectively provided on the inner walls of the two movable blocks 14. The two limiting grooves 1401 are adapted to the limiting protrusion 1301 and are slidably connected to the limiting protrusion 1301.

[0032] The sliding connection design between the limiting protrusion 1301 and the limiting groove 1401 provides stable guidance and support for the movement of the movable block 14 on the slide rail 13 .

[0033] like Figure 6 As shown, a clamping block 15 is fixedly mounted on the top of each of the two movable blocks 14 , and an arc-shaped groove 1501 is formed on each side of the two clamping blocks 15 close to each other.

[0034] The design of the clamping block 15 and the arc-shaped groove 1501 thereon enables the diffuser to be stably clamped. The shape of the arc-shaped groove 1501 matches the contour of the diffuser, providing good fit and clamping force.

[0035] like Figure 6 As shown, a circular island 16 is fixedly installed on the top of the rectangular box 4 . The circular island 16 is located between the two clamping blocks 15 . A circular groove 1601 is formed on the top of the circular island 16 .

[0036] The circular island 16 and the circular groove 1601 on its top provide a stable positioning and supporting platform for the diffusion tube in the test, and the diffusion tube can be accurately placed in the circular groove 1601.

[0037] like Figures 3 and 4 As shown, the four moving blocks 11 are fixedly connected to each other on one side by connecting blocks 10 , a hydraulic cylinder 9 is fixedly mounted on the bottom inner wall of the rectangular box 4 , and the output shaft of the hydraulic cylinder 9 is fixedly connected to the adjacent connecting blocks 10 .

[0038] The four moving blocks 11 are fixedly connected by the connecting block 10 to form a stable overall structure. The driving method of the hydraulic cylinder 9 makes the movement of the moving block 11 simpler and more efficient.

[0039] The working principle and use process of this utility model:

[0040] Place the diffuser tube in the circular groove 1601 of the circular island 16 on the placement platform 1, ensure that the diffuser tube is stable and fixed in position, and ensure that the clamping mechanism is in the initial state, that is, the two movable blocks 14 and the clamping blocks 15 thereon are in a relatively distant position, in preparation for clamping the diffuser tube, start the hydraulic cylinder 9, the output shaft of the hydraulic cylinder 9 is extended and retracted, and the four moving blocks 11 are driven to move in the vertical direction through the connecting block 10, and the movement of the moving block 11 is driven by the sliding connection between the T-column 1101 and the adjustment groove 1201, and the sliding connection between the T-column 2 1402 and the adjustment groove 2 1202, to drive the L-shaped rod 12 to rotate at the hinge point hinged on the outer wall of the slide rail 13 The rotation of the L-shaped rod 12 drives the movable block 14 to approach each other on the outer wall of the slide rail 13, and the clamping block 15 on the movable block 14 also moves accordingly until the arc groove 1501 on the clamping block 15 stably clamps the diffuser, and the motor 6 is started. The output shaft of the motor 6 drives the rotating rod 2 7 to rotate. The rotation of the rotating rod 2 7 drives the two half-tooth blocks 5 to rotate through the engagement of the tooth column 8 with the two half-tooth blocks 5. The rotation of the half-tooth block 5 drives the rotating rod 1 3 to rotate, and then drives the rectangular box 4 and the clamping mechanism inside it and the diffuser to rotate together. By adjusting the rotation direction and angle of the motor, the diffuser can be tilted or rotated in the horizontal plane, which is convenient for adding the receiving liquid and automatic exhaust.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transdermal diffusion test instrument, comprising a placement platform (1), characterized in that: A rectangular box (4) is provided above the placement platform (1), and a clamping mechanism is provided inside the rectangular box (4); The clamping mechanism has four groups including a slide rail (13) fixedly mounted on the top of a rectangular box (4), two movable blocks (14) are slidably mounted on the outer wall of the slide rail (13), two L-shaped rods (12) are hingedly mounted on both sides of the slide rail (13), and an adjustment slot 1 (1201) and an adjustment slot 2 (1202) are respectively opened on the outer walls of the four L-shaped rods (12), two T-shaped columns 2 (1402) are fixedly mounted on both sides of the two movable blocks (14), and the four T-shaped columns 2 (1402) are slidably connected to the adjacent adjustment slots 2 (1202), and a moving block (11) is provided inside the rectangular box (4), two T-shaped columns 1 (1101) are fixedly mounted on both sides of the moving block (11), and the four T-shaped columns 1 (1101) are slidably connected to the adjacent adjustment slots 1 (1201).

2. The transdermal diffusion test instrument according to claim 1, characterized in that: Two fixed blocks (2) are fixedly installed on the top of the placement platform (1), and a rotating rod (3) is rotatably installed on the side of the two fixed blocks (2) close to each other. The sides of the two rotating rods (3) close to each other are fixedly connected to the rectangular box (4), and a half-tooth block (5) is fixedly sleeved on the outer wall of the two rotating rods (3).

3. The transdermal diffusion test instrument according to claim 2, characterized in that: A second rotating rod (7) is rotatably mounted on one side of the two fixed blocks (2) that are close to each other. A section of the second rotating rod (7) extends out of the corresponding fixed block (2). A tooth column (8) is fixedly sleeved on the outer wall of the second rotating rod (7). The tooth column (8) is engaged with the two half tooth blocks (5). A motor (6) is fixedly mounted on the top of the placement platform (1). The output shaft of the motor (6) is fixedly connected to the second rotating rod (7) that is close to each other.

4. The transdermal diffusion test instrument according to claim 1, characterized in that: A limiting protrusion (1301) is fixedly installed on the top of the slide rail (13), and limiting grooves (1401) are respectively opened on the inner walls of the two movable blocks (14), and the two limiting grooves (1401) are adapted to the limiting protrusion (1301) and are slidably connected to the limiting protrusion (1301).

5. The transdermal diffusion test instrument according to claim 1, characterized in that: A clamping block (15) is fixedly mounted on the top of each of the two movable blocks (14), and an arc-shaped groove (1501) is provided on each side of the two clamping blocks (15) close to each other.

6. The transdermal diffusion test instrument according to claim 1, characterized in that: A circular island (16) is fixedly installed on the top of the rectangular box (4), and the circular island (16) is located in the middle of the two clamping blocks (15). A circular groove (1601) is opened on the top of the circular island (16).

7. The transdermal diffusion test instrument according to claim 1, characterized in that: The four moving blocks (11) are fixedly connected to each other on one side by connecting blocks (10). A hydraulic cylinder (9) is fixedly installed on the inner wall of the bottom of the rectangular box (4). The output shaft of the hydraulic cylinder (9) is fixedly connected to the adjacent connecting block (10).

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