Device for measuring diameter of inhibition zone

Abstract

The utility model discloses a device for measuring the diameter of an inhibition zone, and the device comprises a base station, the top surface of the base station is a circular transparent thin plate, the circular transparent thin plate extends downwards along the periphery to form annular protection walls, and a circular clamping cabin is formed between the protection walls; a rotating ruler is further arranged at the top of the base table, the rotating ruler is rotationally connected to the center position of the top of the base table, a sliding ruler sliding in the length direction of the rotating ruler is arranged on the rotating ruler, and scales are arranged on the sliding ruler; a plate with the diameter of an inhibition zone to be measured is placed in the clamping bin, and the diameter of the plate is measured by the sliding ruler. A plate with the diameter of an inhibition zone to be measured is placed in the clamping bin, the rotating ruler is rotated to enable the long edge of the rotating ruler to penetrate through the circle center of the inhibition zone, then the sliding ruler is pushed until the zero graduation line of the sliding ruler is in contact and flush with the edge of the inhibition zone, and the diameter of the inhibition zone can be directly read. The diameter of the inhibition zone at various unconventional positions in the plate is measured, the rotating ruler stops when penetrating through the center position of the inhibition zone, then the sliding ruler is called to measure the diameter, and the precision of diameter measurement of the inhibition zone is ensured.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model belongs to the technical field of bacteriostatic circle measurement, more particularly, relates to a bacteriostatic circle diameter measuring device. BACKGROUND

[0002] In the antibacterial sensitivity test, after the antibacterial substance is applied to the agar medium surface containing target microorganisms, a sterile growth area is formed around the antibacterial substance. This circular transparent area is called a bacteriostatic circle, which can intuitively reflect the inhibitory effect of the antibacterial substance on specific bacteria. The diameter of the bacteriostatic circle can be used as an indicator to measure the activity of the antibacterial substance. Generally speaking, the larger the bacteriostatic circle, the stronger the inhibitory effect of the antibacterial substance on the bacteria, and the antibacterial efficacy is usually quantitatively evaluated by measuring the diameter of the bacteriostatic circle. The commonly used method is to use a ruler or a caliper to measure. This measurement method increases the workload because the measuring tool needs to be adjusted constantly during use.

[0003] The Chinese patent with publication number CN214142351U discloses a bacteriostatic circle measuring dish for drug sensitivity experiment, which comprises a transparent dish body and a measuring plate. The measuring plate is circular, and the lamination surface of the measuring plate and the transparent dish body is provided with a 90mm diameter circle. The 90mm circle is divided into four equal first sector areas by a first cross reference line. Each first sector area is provided with a concentric circle. The maximum circle diameter of the concentric circle is 30mm, and the minimum circle diameter is 6mm. The radii of two adjacent circles of the concentric circle differ by 2mm. Each concentric circle is divided into four equal second sector areas by a second cross reference line. Two adjacent second sector areas are provided with a plurality of concentric arcs. The radii of adjacent arcs in one second sector area provided with concentric arcs differ by 0.5mm, and the radii of adjacent arcs in the other second sector area provided with concentric arcs differ by 1mm.

[0004] The bacteriostatic circle measuring dish has simple structure, is convenient to use, can quickly measure the size of the bacteriostatic circle, is simple and fast, and has small error. However, when measuring the bacteriostatic circle in the flat dish that has been cultured, the center of the bacteriostatic circle is uncertain, and it is most likely that the center is not at the center of the cross reference line, which may result in that the bacteriostatic circle cannot be measured. Therefore, a bacteriostatic circle diameter measuring device is needed, which can quickly and accurately measure the diameter of the bacteriostatic circle at any position. Utility model content

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a bacteriostatic circle diameter measuring device, the petri dish of the bacteriostatic circle diameter to be measured is placed in the clamping bin, the long side is made to pass through the center of bacteriostatic circle by rotating the ruler, then the slide ruler is pushed to the zero scale line and the edge of bacteriostatic circle is contacted and is flush, and the diameter of bacteriostatic circle can be directly read out. The diameter of bacteriostatic circle in various unconventional positions in the petri dish is measured, and the ruler passes through the center of all bacteriostatic circles in the process of rotating, and only needs to stop when passing through the center of the bacteriostatic circle to be measured, then the slide ruler is called to measure the diameter, and the accuracy of bacteriostatic circle diameter measurement is ensured.

[0006] In order to achieve the above object, the utility model embodiment provides a bacteriostatic circle diameter measuring device, comprising: a base, the top surface of the base is a circular transparent sheet, and a ring-shaped guard wall is formed by extending downward along the outer periphery, and a circular clamping bin is formed between the guard walls;

[0007] The top of the base is also provided with a ruler, which is rotationally connected to the center position of the top of the base, a slide ruler is slidably arranged on the ruler along the length direction of the ruler, and a scale is arranged on the slide ruler;

[0008] The petri dish of the bacteriostatic circle diameter to be measured is placed in the clamping bin, and the diameter is measured by the slide ruler.

[0009] Further, a plurality of push rods are equidistantly arranged along the circumferential direction in the guard wall, and the extension lines of the plurality of push rods all pass through the center of the clamping bin.

[0010] Further, a compression channel is arranged at a position corresponding to each push rod in the guard wall, both ends of the compression channel penetrate the guard wall, one end of the push rod is arranged in the compression channel, and the push rod penetrates the outer circle of the guard wall.

[0011] Further, a spring is arranged in the compression channel, a limiting plate is arranged at the position close to the center of the clamping bin of the part of the push rod in the compression channel, that is, the limiting plate is arranged between the spring and the inner wall of the guard wall, and the push rod penetrates the spring.

[0012] The other end of the push rod is also provided with a push plate, and the push plate is in contact with the side surface of the petri dish of the bacteriostatic circle diameter to be measured.

[0013] Further, a plurality of rulers are arranged, the back end of the ruler is connected to the center position of the base through a rotating shaft, and the ruler rotates around the center.

[0014] Further, long grooves are formed in the two sides of the ruler along the length direction, the long grooves penetrate the two sides of the ruler, and the long grooves are close to the bottom surface of the ruler.

[0015] The top of the ruler is also provided with a long groove, the length of the long groove is the same as that of the long grooves in the two sides of the ruler, and the long groove communicates with the long grooves in the two sides to form a sliding groove.

[0016] Further, the sliding groove is provided with a sliding ruler, the bottom of the sliding ruler extends from the long groove on both sides of the rotating ruler as a measuring part, the top of the sliding ruler extends from the long groove on the top of the rotating ruler as an operating part, the sliding ruler is driven to slide in the sliding groove through the operating part to reach the position to be measured.

[0017] Further, the measuring part on both sides of the sliding ruler is provided with a scale line, and the zero scale line of the measuring part on both sides is arranged in opposite directions, that is, the scale lines on both sides of the sliding ruler increase in opposite directions.

[0018] Further, the rear end of the rotating ruler is fixedly connected to the base and rotates simultaneously, and the rotating rulers are equidistantly arranged.

[0019] Alternatively, the rotating rulers are separately arranged and independently rotate around the rotating shaft, and the rotating angles of the rotating rulers are not affected.

[0020] Further, a scale is arranged outward along a radius of the base, and a circle is drawn at each scale with the center of the base as a circle.

[0021] Overall, compared with the prior art, the above technical scheme of the utility model can achieve the following beneficial effects:

[0022] 1. The diameter measuring device of the bacteriostatic zone can place the flat plate to be measured in the clamping bin, rotate the rotating ruler to make the long side pass through the center of the bacteriostatic zone, push the sliding ruler to the zero scale line to make the sliding ruler contact and align with the edge of the bacteriostatic zone, and directly read the diameter of the bacteriostatic zone. The diameter of the bacteriostatic zone in various unconventional positions in the flat plate can be measured, and the rotating ruler will pass through the centers of all bacteriostatic zones in the rotating process, and only needs to stop when passing through the center of the bacteriostatic zone to be measured, and then the sliding ruler is used to measure the diameter, so that the accuracy of the measurement of the diameter of the bacteriostatic zone is ensured.

[0023] 2. The diameter measuring device of the bacteriostatic zone can use the push rod to fix the flat plate at the center of the clamping bin, and the push rod is elastically extended, so that the measuring device can clamp the flat plate in the clamping bin when facing flat plates of different sizes, and the diameter of the bacteriostatic zone on the flat plate can be measured.

[0024] 3. The bacteriostatic circle diameter measuring device of the utility model, the scale line of slide ruler two sides is set to the opposite direction increment, guarantees that the operator can be positioned quickly when standing at different angles, is convenient for the operator to contrast scale, reduces the action when operating, improves the efficiency of measurement. Meanwhile, in the drug sensitivity experiment, many bacteriostatic circles will be set at the boundary of the flat dish, and in this case, the slide ruler can be limited by the length of the sliding groove, and cannot reach the center or the circumference of the base, if the scales are set the same, it will inevitably make the bacteriostatic circle diameter of the two points unable to be measured, and if the scales are set oppositely, it can cover the position of the entire base, improving the applicability of the measuring device. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structure top view of the bacteriostatic circle diameter measuring device of the utility model embodiment;

[0026] Figure 2 It is a structure bottom view of the bacteriostatic circle diameter measuring device of the utility model embodiment;

[0027] Figure 3 It is a bottom internal structure view of the bacteriostatic circle diameter measuring device of the utility model embodiment;

[0028] Figure 4 It is the utility model embodiment Figure 3 The enlarged view of part a;

[0029] Figure 5 It is a structure left view of the bacteriostatic circle diameter measuring device of the utility model embodiment;

[0030] Figure 6 It is a slide ruler structure schematic view of the bacteriostatic circle diameter measuring device of the utility model embodiment;

[0031] Figure 7 It is a slide ruler structure schematic view of the bacteriostatic circle diameter measuring device of the utility model embodiment;

[0032] In all the drawings, the same reference signs represent the same technical features, specifically: 1-base, 2-wall protection, 3-clamping bin, 4-push rod, 5-push plate, 6-compression channel, 7-spring, 8-slide ruler, 9-rotation shaft, 10-slide ruler. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] As shown in Figures 1-7 The utility model discloses an antibacterial circle diameter measuring device, including base 1, the top surface of base 1 is circular transparent sheet, and it forms the annular retaining wall 2 along the periphery downward, and the retaining wall 2 forms the circular clamping bin 3 between. The base 1 top still is equipped with the conversion ruler 8, and the conversion ruler 8 rotationally connects in the center position of base 1 top, and the conversion ruler 8 is equipped with sliding ruler 10 along its length direction sliding, and the sliding ruler 10 is equipped with scale. The petri dish of the antibacterial circle diameter to be measured is in the clamping bin 3, and the conversion ruler 8 is rotated to make its long side pass through the center of antibacterial circle, and then sliding ruler 10 is pushed to the zero scale line and contacts the edge of antibacterial circle, and the diameter of antibacterial circle can be directly read out. The diameter of antibacterial circle in various unconventional positions in the petri dish can be measured, and the conversion ruler 8 passes through the center of all antibacterial circles in the process of rotation, and only needs to stop when passing through the center of the antibacterial circle to be measured, and then sliding ruler 10 is called to measure the diameter, which ensures the accuracy of antibacterial circle diameter measurement.

[0035] The retaining wall 2 is provided with a plurality of push rods 4 equidistantly along the circumference thereof, and the extension lines of the plurality of push rods 4 all pass through the center of the clamping bin 3. The retaining wall 2 is provided with a compression channel 6 at a position corresponding to each of the push rods 4, the two ends of the compression channel 6 penetrate the retaining wall 2, one end of the push rod 4 is arranged in the compression channel 6, and the push rod 4 penetrates the outer circle of the retaining wall 2. The compression channel 6 is further provided with a spring 7, the portion of the push rod 4 in the compression channel 6 is provided with a limiting plate close to the center of the clamping bin 3, that is, the limiting plate is arranged between the spring 7 and the inner wall of the retaining wall 2, and the push rod 4 penetrates the spring 7. The other end of the push rod 4 is further provided with a push plate 5, and the push plate 5 contacts the side surface of the petri dish of the antibacterial circle diameter to be measured.

[0036] It can be understood that the specifications of the plurality of push rods 4 and the spring 7 are consistent, in the use process, the push rod 4 is pushed away from the center of the clamping bin 3, and then the petri dish of the antibacterial circle diameter to be measured is arranged in the clamping bin 3, the spring 7 pushes the push rod 4 to apply a pushing force to the petri dish of the antibacterial circle diameter to be measured, because the specifications of the spring 7 in each direction are the same, the size of the stress of the petri dish of the antibacterial circle diameter to be measured in multiple directions is the same, so that the petri dish is clamped in the center of the clamping bin 3, at this time, the center of the base 1 and the center of the petri dish of the antibacterial circle diameter to be measured are in the same position, which is convenient for subsequent measurement of the antibacterial circle diameter.

[0037] It is worth mentioning that, in the daily drug sensitivity test, the same size of the plate is generally used, and in some special needs, larger or smaller size of the plate can be used. In the utility model, the push rod 4 is used to fix the plate at the center of the clamping bin 3, and the push rod 4 is elastically extended, so that the measuring device can clamp the plate in the clamping bin 3 when facing different sizes of the plate, and the diameter of the bacteriostatic circle on the plate can be measured.

[0038] The rotating ruler 8 is provided with a plurality of rear ends connected to the center position of the base 1 through the rotating shaft 9 and rotates around the center. Long grooves are opened on both sides of the rotating ruler 8 along the length direction, the long grooves penetrate both sides of the rotating ruler 8, and the long grooves are close to the bottom surface of the rotating ruler 8. The top of the rotating ruler 8 is also provided with a long groove, the length of the long groove is the same as that of the long grooves on both sides of the rotating ruler 8, and the long groove is in communication with the long grooves to form a sliding groove. The sliding ruler 10 is arranged in the sliding groove, the bottom of the sliding ruler 10 extends from the long grooves on both sides of the rotating ruler 8 as a measuring part, and the top of the sliding ruler 10 extends from the long groove on the top of the rotating ruler 8 as an operating part. The sliding ruler 10 is driven to slide in the sliding groove through the operating part to reach the position to be measured. The measuring parts on both sides of the sliding ruler 10 are provided with scale lines, and the zero scale lines of the measuring parts on both sides are arranged in opposite directions, that is, the scale lines on both sides of the sliding ruler 10 increase in opposite directions.

[0039] It can be understood that the scale lines on both sides of the sliding ruler 10 are arranged in opposite directions, which can ensure that the operator can quickly position at different angles, facilitate the operator to compare the scales, reduce the action during operation, and improve the efficiency of measurement. At the same time, in the drug sensitivity experiment, many bacteriostatic circles are arranged at the boundary of the plate, and in this case, the sliding ruler 10 can be limited by the length of the sliding groove and cannot reach the center or the circumferential position of the base 1. If the scales are arranged in the same way, the diameters of the bacteriostatic circles at the two points cannot be measured, and if the scales are arranged in opposite directions, the entire position of the base 1 can be covered, and the applicability of the measuring device is improved.

[0040] In an embodiment of the utility model, the rear end of the rotating ruler 8 is fixedly connected to an integral body and rotates simultaneously, and the rotating rulers 8 are equidistantly arranged.

[0041] In an embodiment of the utility model (not shown in the figure), the rotating rulers 8 are separately arranged and independently rotate around the rotating shaft 9, and the rotating angles of the rotating rulers 8 are not affected. When the positions of the bacteriostatic circles on the plate to be measured are irregular, the rotating rulers 8 are independently rotated to different bacteriostatic circles for measurement.

[0042] In some drug sensitivity tests, a test point is set in the center of the plate, and an additional bacterial inhibition zone is formed at the test point. As a further preferred embodiment, a scale is set along a radius outward from the center of the base 1, and a circle is drawn at each scale mark with the center of the base 1 as the center. When measuring the diameter of the bacterial inhibition zone in the center of the plate, the scale represented by the circle coinciding with the boundary of the bacterial inhibition zone can be directly read.

[0043] Those skilled in the art will easily understand that the above description is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A zone of inhibition diameter measuring device, characterized by, The utility model relates to a kind of measuring device for measuring the diameter of bacteriostatic circle, including: Base (1), the top surface of the base (1) is circular transparent sheet, and it is formed annular retaining wall (2) along the periphery and extends downward, and retaining wall (2) is formed circular clamping bin (3) between; The top of the base (1) is further provided with a rotating ruler (8), which is rotatably connected to the center of the top of the base (1). The rotating ruler (8) is provided with a sliding ruler (10) sliding along its length direction. The sliding ruler (10) is provided with a scale. The petri dish to be measured for the diameter of bacteriostatic circle is placed in the clamping bin (3), and the diameter is measured by the sliding ruler (10).

2. The zone of inhibition diameter measuring device of claim 1, wherein, The retaining wall (2) is provided with a plurality of push rods (4) equidistantly along its circumference. The extension lines of the plurality of push rods (4) all pass through the center of the clamping bin (3).

3. The zone of inhibition diameter measuring device of claim 2, wherein, In the retaining wall (2), a compression channel (6) is provided at a position corresponding to each of the push rods (4). The two ends of the compression channel (6) penetrate the retaining wall (2). One end of the push rod (4) is arranged in the compression channel (6), and the push rod (4) penetrates the outer circle of the retaining wall (2).

4. The device of claim 3, wherein, A spring (7) is further arranged in the compression channel (6). The part of the push rod (4) in the compression channel (6) is further provided with a limiting plate near the center of the clamping bin (3). The limiting plate is arranged between the spring (7) and the inner wall of the retaining wall (2). The push rod (4) penetrates the spring (7). The other end of the push rod (4) is further provided with a push plate (5), which contacts the side surface of the petri dish to be measured for the diameter of bacteriostatic circle.

5. The zone of inhibition diameter measuring device of any one of claims 1-4, wherein, A plurality of rotating rulers (8) are provided. The rear end of the rotating ruler (8) is connected to the center of the base (1) through a rotating shaft (9) and rotates around the center.

6. The zone of inhibition diameter measuring device of claim 5, wherein, Long grooves are opened on both sides of the rotating ruler (8) along the length direction. The long grooves penetrate both sides of the rotating ruler (8), and the long grooves are close to the bottom surface of the rotating ruler (8). A long groove is also opened on the top of the rotating ruler (8). The length of the long groove on the top of the rotating ruler (8) is the same as the length of the long grooves on both sides of the rotating ruler (8), and the long groove on the top of the rotating ruler (8) communicates with the long grooves on both sides of the rotating ruler (8) to form a sliding groove.

7. The zone of inhibition diameter measuring device of claim 6, wherein, A sliding ruler (10) is arranged in the sliding groove. The bottom of the sliding ruler (10) extends out of the long grooves on both sides of the rotating ruler (8) as a measuring part. The top of the sliding ruler (10) extends out of the long groove on the top of the rotating ruler (8) as an operating part. The sliding ruler (10) is slid in the sliding groove by the operating part to reach the position to be measured.

8. The zone of inhibition diameter measuring device of claim 7, wherein, Scale lines are arranged on the measuring parts on both sides of the sliding ruler (10). The zero scale lines of the measuring parts on both sides are arranged in opposite directions, i.e., the scale lines on both sides of the sliding ruler (10) increase in opposite directions.

9. The zone of inhibition diameter measuring device of claim 5, wherein, The rear end of the rotating ruler (8) is fixedly connected to an integral body and rotates simultaneously. The rotating rulers (8) are equidistantly arranged. Alternatively, the rotating rulers (8) are separately arranged and independently rotate around the rotating shaft (9). The rotation angles of the rotating rulers (8) do not affect each other.

10. The zone of inhibition diameter measuring device of any one of claims 1-4, wherein, In the center of the base (1), a scale is arranged along a radius outward, and a circle is drawn at each scale with the center of the base (1) as a circle.

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