CN211689059U - A perforating device for inoculating fungus on culture medium - Google Patents

Abstract

The utility model provides a punching device for inoculating bacteria on a culture medium, comprising a top cover (1), a handle (2), a pressing rod (3), a handle barrel (4), a pressing rod head (5) and a Removable punch head (6). Both ends of the removable punching head (6) can be connected to the bottom end of the handle barrel (4); the pressing rod (3) is located in the handle barrel (4), and its top end is connected to the top cover (1), and the pressure rod (3) is connected to the top cover (1). The lower end of the rod (3) is connected with the pressing rod head and passes through the bottom of the handle barrel (4) and can reach the removable punching head (6). The perforating device used for inoculating bacteria on the culture medium of the utility model has the advantages of simple structure, convenient use and complete sampling, which can simplify the operation steps during perforation and improve the inoculating efficiency; at the same time, combined with the material characteristics, it can be disassembled and replaced The punching head (6) is disposable, which is beneficial to reduce the risk of contamination by miscellaneous bacteria when inoculating bacteria and ensure the accuracy of experimental operations.

Description

A kind of punching device for inoculating bacteria on culture medium

technical field

The utility model belongs to the field of microorganism culture experiments, in particular to a reusable hole punch device.

Background technique

A hole punch is a tool widely used in microbial culture experiments such as medicine, agronomy, and biology. Simple cutting with a knife or pipetting with tweezers connects the bacteria to a new petri dish. This process is likely to cause bacterial contamination during the operation, affecting the effect of inoculating bacteria and affecting the progress of the experiment.

The more standardized way of inoculating bacteria is to use an ordinary hole punch in the laboratory to punch the bacterial cake at the center of the surface of the petri dish, and then use the inoculating needle to put the reverse side of the bacterial cake into the petri dish to be accessed. This process is relatively complex and cumbersome, and in the process of aseptic operation, there are often incomplete sterilization and dead ends, which adversely affect the success of the experiment.

In addition, in the process of moving the bacterial cake and using the inoculating needle to turn the bacterial cake, due to the different hardness of the bacterial cake, it is easy to cause the bacterial cake to be broken or difficult to take out, which causes trouble for the microbiological experiment.

Utility model content

The technical problem to be solved by the utility model is to aim at the defects of the prior art, and to provide a puncher suitable for inoculating bacteria on a petri dish, which can be reused, reduces pollution and simplifies the operation.

A punching device for inoculating bacteria on a culture medium, comprising a top cover (1), a handle (2), a pressing rod (3), a handle barrel (4), a pressing rod head (5) and a removable punch A hole head (6), the removable punching head (6) is fixedly connected to the lower end of the handle barrel (4); the pressure rod (3) is located in the handle barrel (4), and its The top end is connected to the top cover (1), the pressure rod head (5) is located at the lower end of the pressure rod (3) and passes through the bottom of the handle barrel (4); (6) are internally connected. On the puncher for inoculating bacteria on the medium, the bottom end of the pressing rod head (5) extends into the interior of the handle barrel (4); For the hole punch for bacteria, the bottom end of the handle barrel (4) is connected with the removable punch head (6), and the pressure rod head (5) can still extend into the removable punch head (6) Inside; on the described hole puncher for inoculating bacteria on the culture medium, the top cover (1), the handle (2), the pressure rod (3), the handle barrel (4), and the pressure rod head (5) are all Made of stainless steel. On the puncher for inoculating bacteria on the culture medium, the part of the removable punching head (6) is made of PE material.

The beneficial effects of the utility model are as follows: the hole punch provided by the utility model for inoculating bacteria on the culture medium, when in use, the index finger and the middle finger support the handle (2), the thumb presses the top cover (1), and the removable The bottom end of the punching head (6) punches the bacteria on the petri dish, and pieces of bacteria in the shape of a hole cylinder enter the hole cylinder, and then press the top cover (1) at the upper end, and the pressure rods connected together (3) and the pressure rod head (5); thereby effectively reducing the loss of the bacterial cake, easy to use, and complete sampling.

The beneficial effects of the utility model are as follows: the top of the removable punching head (6) is pulled out, and then the original bottom is placed in the bottom of the handle barrel (4), and then the removable punching head (6) is directly inserted. The bacteria cake inside is pushed out into a new petri dish; the bacteria inoculation needle is not used; thus effectively saving the bacteria inoculation time and improving the bacteria inoculation efficiency.

The beneficial effects of the utility model are as follows: the removable punching head (6) is made of PE material, and the punching head is disposable; thereby effectively reducing the pollution of miscellaneous bacteria and ensuring the progress of the experiment.

Description of drawings

FIG. 1 is a schematic structural diagram of the punching device for inoculating bacteria on a culture medium according to the present invention.

Fig. 2 is a schematic diagram of the separation state of the punching device for inoculating bacteria on a medium according to the present invention.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figure 1, it is a structural schematic diagram of the punching device used for inoculating bacteria on the culture medium according to Figure 1, characterized in that: a top cover (1), a handle (2), a pressure rod (3), handle barrel (4), pressure rod head () (5) and removable punching head (6).

As shown in Figure 2, it is a schematic diagram of the separation state of the punching device used for inoculating bacteria on the culture medium, and is characterized in that: the removable punching head (6) is disposable, and the removable punching head Both ends of (6) can be connected to the bottom end of the handle barrel (4), which can efficiently push the bacteria cake into the new petri dish through the pressing rod (3) and the pressing rod head (5), reducing the Pollution.

Embodiment 1 In the above-mentioned structure, the index finger and the middle finger support the handle (2) during use, the thumb presses the top cover (1), and the bottom end of the removable punching head (6) is used to carry out the bacteria on the culture dish. Punch and sample, store the bacteria cake in the removable punching head (6), and place the removable punching head ( 6) Unplug, then use the bottom end of the original removable punching head (6) as the upper end, and install it together with the bottom of the handle barrel (4) again, through the connected pressure rod (3) and the pressure rod head (5), push the top cover (1) with the thumb, and quickly push out the bacterial block in the removable punching head (6) by moving down the pressure rod head (5) to obtain a complete bacterial block, and the operation is time-saving Save labor and improve work efficiency.

In this embodiment, the top cover (1), handle (2), pressing rod (3), handle barrel (4), and pressing rod head (5) of the punching device that can inoculate bacteria on the cultivator are all made of stainless steel. , the punch can be sterilized, high temperature, autoclaved before use. The removable punching head (6) is made of PE material which can be used once, which can effectively reduce the possibility of pollution.

The basic principles, main features and advantages of the present invention have been shown and described above. The utility model will also have various changes and improvements, which all fall within the scope of the claimed utility model.

Claims (5)

1. a punching device for inoculating bacteria on a culture medium is characterized in that: comprising a top cover (1), a handle (2), a pressure rod (3), a handle barrel (4), a pressure rod head (5) and a removable punching head (6), the removable punching head (6) is fixedly connected to the lower end of the handle barrel (4); the pressure rod (3) is located in the handle barrel (4), And the top cover (1) is installed at the top, and the pressure rod head (5) is located at the lower end of the pressure rod (3) and passes through the bottom of the handle barrel (4); The punching heads (6) are connected, and on the described punching device for inoculating bacteria on a culture medium, the bottom end of the top cover (1) extends into the top end of the handle barrel (4); Further, the bottom end of the handle barrel (4) is connected with the removable punching head (6), and the pressing rod head (5) can still extend into the removable punching head (6). 2. A kind of punching device for inoculating bacteria on a culture medium as claimed in claim 1, characterized in that: the bottom end of the top cover (1) is connected with a pressure rod (3) and extends into the handle barrel In (4), the pressing rod (3) is connected with the pressing rod head (5) and can extend into the removable punching head (6). 3. a kind of punching device for inoculating bacteria on the culture medium as claimed in claim 2 is characterized in that: both ends of the removable punching head (6) can be connected with the bottom end of the handle barrel (4) , one end of the fungus cake is punched, and then the removable punching head (6) is inserted into the bottom end of the handle barrel (4) in a reversed direction. This operation can save the time of using the inoculating needle and improve the inoculating efficiency. 4. a kind of punching device for inoculating bacteria on culture medium as claimed in claim 3, is characterized in that: common punching device is integral non-removable, but the removable punching of this punching device The head (6) is detachable and disposable. 5. a kind of punching device for inoculating bacteria on culture medium as claimed in claim 4, is characterized in that: described top cover (1), handle (2), pressing rod (3), handle barrel (4) ) and the pressure rod head (5) are made of stainless steel, and the removable punching head (6) is made of PE material.

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