Multi-angle sensing portable bacterial colony counting pen

Abstract

The utility model provides a multi-angle sensing portable bacterial colony counting pen which comprises a shell, a pen holder arranged at one end of the shell, a micro sensing unit connected with one end of the pen holder and a microprocessor connected with the micro sensing unit, and a pen point is arranged at the other end of the pen holder. The micro sensing unit comprises a rubber sleeve arranged on the side portion of the pen holder in a sleeving mode, a metal ball connected with one end of the pen holder and a metal cover arranged on the outer side of the metal ball, one side of the metal cover is open, a gap exists between the metal cover and the metal ball, the metal cover and the metal ball are both electrically connected with the microprocessor, and the rubber sleeve is embedded into one end of the shell. According to the multi-angle sensing portable bacterial colony counting pen, the metal cover covers the outer side of the metal ball of the micro sensing unit, when the pen holder is pressed at multiple angles, the metal ball can make contact with the metal cover through deformation of the rubber sleeve, and therefore counting is completed, and triggering of the micro sensing switch is simpler, more efficient, more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of biochemical instruments, in particular to a portable colony counting pen with multi-angle sensing. Background Art

[0002] Colony counting pens are widely used in the inspection of microbial colony counts in food, beverages, medicines, biological products, cosmetics, sanitary products, drinking water, domestic sewage, industrial wastewater, and clinical specimens; the plate colony counting method is a commonly used method for colony counting. Specifically, the sample to be tested is appropriately diluted, and the microorganisms in it are fully dispersed into single cells. A certain amount of diluted sample liquid is applied to the plate. After cultivation, each single cell grows and reproduces to form colonies visible to the naked eye, that is, a colony represents a single cell in the original sample. By counting the number of colonies, the number of bacteria in the sample can be calculated according to its dilution multiple and the sampling inoculation volume. The essence of colony counting is to count the number of colonies. Once there are more samples, the colony counting technology is time-consuming, labor-intensive and prone to errors. In order to solve this problem, people have developed various colony counters, among which the colony counting pen is a commonly used counting tool. By pressing the counting pen, the microswitch action is triggered to count.

[0003] However, the existing colony counting pen can only trigger the micro switch for counting when the pen tip is pressed at a specific angle, which is inconvenient to operate and use when counting colonies. This solution solves this technical problem. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a portable colony counting pen with multi-angle sensing.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a portable colony counting pen with multi-angle sensing, comprising a shell, a pen holder arranged at one end of the shell, a micro-motion sensing unit connected to one end of the pen holder, and a microprocessor connected to the micro-motion sensing unit, and a pen head is arranged at the other end of the pen holder;

[0006] The micro-motion sensing unit comprises a rubber sleeve sleeved on the side of the pen holder, a metal ball connected to one end of the pen holder, and a metal cover arranged outside the metal ball, one side of the metal cover is open and there is a gap between the metal cover and the metal ball, the metal cover and the metal ball are both electrically connected to the microprocessor, and the rubber sleeve is embedded in one end of the housing;

[0007] A display screen and a power switch electrically connected to the microprocessor are respectively arranged on the outer side of the shell.

[0008] LED lamp beads are respectively arranged on both sides of one end of the shell close to the pen body, and the LED lamp beads are electrically connected to the microprocessor.

[0009] A magnifying mirror is rotatably arranged on the side of the shell.

[0010] The other end of the shell is provided with a through hole, and a hanging rope is passed through the through hole.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) A metal cover is provided on the outer side of the metal ball of the micro-motion sensing unit. When the pen holder is pressed at multiple angles, the metal ball can contact the metal cover through the deformation of the rubber cover, thereby forming a path in the microprocessor, so that the microprocessor completes the counting, and the triggering of the micro-motion sensing switch is simpler, more efficient, convenient and quick;

[0013] (2) A magnifying glass is installed on the side of the shell. When the colonies are small, the colonies can be observed and counted by unfolding the magnifying glass. When the magnifying glass is not needed, it can be folded, making the colony counting pen more convenient and quick to use.

[0014] (3) LED lamp beads are respectively arranged on both sides of one end of the shell near the pen holder, and the colony is illuminated by the LED lamp beads, so that the pen tip can count the colonies in a dark light environment. The colony counting pen has stronger adaptability and is more convenient to use;

[0015] (4) A hanging rope is passed through the through hole, which makes the colony counting pen more convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the external structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0018] Figure 3 It is a structural schematic diagram of the micro-motion sensing unit of the utility model.

[0019] Among them, in the figure: 1. shell; 2. pen holder; 3. microprocessor; 4. rubber sleeve; 5. metal ball; 6. metal cover; 7. display screen; 8. power switch; 9. LED lamp bead; 10. magnifying glass; 11. through hole; 12. hanging rope. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0021] See also Figure 1-Figure 3A portable colony counting pen with multi-angle sensing includes a housing 1, a pen holder 2 arranged at one end of the housing 1, a micro-motion sensing unit connected to one end of the pen holder 2, and a microprocessor 3 connected to the micro-motion sensing unit. A pen head is arranged at the other end of the pen holder 2;

[0022] The micro-motion sensing unit includes a rubber sleeve 4 sleeved on the side of the pen holder 2, a metal ball 5 connected to one end of the pen holder 2, and a metal cover 6 arranged outside the metal ball 5. One side of the metal cover 6 is open and there is a gap between the metal cover 6 and the metal ball 5. The metal cover 6 and the metal ball 5 are both electrically connected to the microprocessor 3. The rubber sleeve 4 is embedded in one end of the housing 1.

[0023] A display screen 7 and a power switch 8 electrically connected to the microprocessor 3 are respectively arranged on the outer side of the housing 1 .

[0024] LED lamp beads 9 are respectively arranged on both sides of one end of the shell 1 close to the pen body 2, and the LED lamp beads 9 are electrically connected to the microprocessor 3.

[0025] A magnifying glass 10 is rotatably provided on the side of the housing 1 .

[0026] The other end of the housing 1 is provided with a through hole 11 , and a hanging rope 12 is passed through the through hole 11 .

[0027] The specific working process of this utility model:

[0028] When in use, the housing 1 is held in the hand, the power switch 8 is pressed, and then the pen tip is pressed to the colony to be counted, and the colony is marked by the pen tip. At the same time, when the pen tip is pressed, the rubber sleeve 4 connected to the pen shaft 2 is deformed, so that the metal ball 5 is offset in the metal cover 6 and contacts the metal cover 6, forming a passage in the microprocessor 3, so that the microprocessor 3 counts, and finally the counted number of colonies is displayed on the display screen 7;

[0029] The metal ball 5 can be brought into contact with the metal cover 6 by the deformation of the rubber sleeve 4. The structure of the micro-motion induction switch is simple, and the triggering of the micro-motion induction switch is simpler, more efficient, convenient and quick.

[0030] When the lighting conditions are not good, the LED lamp bead 9 is triggered to light up by long pressing the power switch 8, and the LED lamp bead 9 is used to illuminate the colony, and the pen tip is assisted to mark the colony. The colony counting pen is more adaptable and more convenient to use. It should be noted that the execution of different instructions through different operations of the power switch 8 is achieved by adopting existing technology, which is common knowledge among technicians in this field and will not be described in detail here.

[0031] When the colony is small, the magnifying glass 10 can be unfolded by rotating, and the pen tip can be aligned with the colony through the magnifying glass 10 to mark the colony. When the magnifying glass 10 is not needed, it can be folded, and the use of the colony counting pen is more convenient and quick.

[0032] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A portable colony counting pen with multi-angle sensing, comprising a housing (1), characterized in that: It also comprises a pen holder (2) arranged at one end of the housing (1), a micro-motion sensing unit connected to one end of the pen holder (2), and a microprocessor (3) connected to the micro-motion sensing unit; the other end of the pen holder (2) is provided with a pen head; The micro-motion sensing unit comprises a rubber sleeve (4) sleeved on the side of the pen shaft (2), a metal ball (5) connected to one end of the pen shaft (2), and a metal cover (6) arranged outside the metal ball (5), one side of the metal cover (6) is open and there is a gap between the metal cover (6) and the metal ball (5), the metal cover (6) and the metal ball (5) are both electrically connected to the microprocessor (3), and the rubber sleeve (4) is embedded in one end of the housing (1); A display screen (7) and a power switch (8) electrically connected to the microprocessor (3) are respectively provided on the outside of the housing (1).

2. The portable colony counting pen with multi-angle sensing according to claim 1, characterized in that: LED lamp beads (9) are respectively arranged on both sides of one end of the housing (1) close to the pen holder (2), and the LED lamp beads (9) are electrically connected to the microprocessor (3).

3. The portable colony counting pen with multi-angle sensing according to claim 2, characterized in that: A magnifying mirror (10) is rotatably provided on the side of the housing (1).

4. The portable colony counting pen with multi-angle sensing according to claim 1, characterized in that: The other end of the housing (1) is provided with a through hole (11), and a hanging rope (12) is passed through the through hole (11).

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