A plate punching device for antibacterial experiments

Abstract

This utility model discloses a plate punching device for antibacterial experiments, including a puncher body with a punching head for punching agar plates at one end; a push rod coaxially arranged with the punching head; and a push rod pressing part located at the other end of the puncher body. By pressing the push rod pressing part, the push rod moves along its own axis to push out the agar block stuck in the punching head. This utility model, by setting a push rod and a push rod pressing part coaxial with the punching head, allows the experimenter to simply press the push rod pressing part after punching to move the push rod along its own axis and push out the agar block stuck in the punching head. This allows the experimenter to complete the punching process more smoothly, reduces operation interruption time, improves the convenience and efficiency of agar block removal, and reduces the complexity of the experimental operation.

Description

Technical Field

[0001] This utility model relates to the field of experimental auxiliary equipment technology, and in particular to a plate punching device for antibacterial experiments. Background Technology

[0002] In the field of microbiology experiments, the perforation method is one of the commonly used methods for conducting antibacterial experiments on petri dishes. One of the core steps of this method is to punch 4-5 small holes in the agar plate to facilitate the subsequent addition of antibacterial substances and the observation of their antibacterial effect.

[0003] Currently, when conducting the above experiments using the hole method, the drilling tool used is a traditional hole punch, which typically consists of a hollow, thin-walled stainless steel cutting tool fixed to a base. Researchers operate this hole punch to create holes in the agar plate using the cutting tool.

[0004] However, existing hole punches have many drawbacks in practical use, causing inconvenience to experimental operations. Specifically, after punching a hole, agar blocks remain inside the punch blade, requiring sterile tweezers or other specialized instruments to remove them from the punched tube. This extra step increases the complexity of the experimental procedure. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a plate punching device for antibacterial experiments, comprising:

[0006] The punch body has a punching head at one end for punching holes in agar plates;

[0007] A push rod, which is coaxially mounted with the punch head;

[0008] The push rod pressing part is located at the other end of the punch body. By pressing the push rod pressing part, the push rod moves along its own axis to push out the agar block stuck in the punch head.

[0009] This invention features a push rod and a push rod pressing part coaxial with the punching head. After punching, the experimenter only needs to press the push rod pressing part to move the push rod along its own axis, thus ejecting the agar block stuck in the punching head. This allows the experimenter to complete the punching process more smoothly, reduces operation interruption time, improves the convenience and efficiency of agar block removal, and reduces the complexity of the experimental operation.

[0010] Furthermore, a punching head mounting part is fixed at the end of the punch away from the pressing part, and the punching head is fitted on the outside of the punching head mounting part, with the punching head and the punching head mounting part having an interference fit.

[0011] The punch head is fixed to the mounting part by an interference fit, which improves the situation of loosening, displacement or even falling off due to pressure or the reaction force of agar during the punching process. In addition, when it is necessary to replace the punch head with a different specification or to clean, disinfect or repair the punch head, the punch head can be removed from the mounting part by applying appropriate external force, which is convenient.

[0012] Furthermore, the inner wall of the punch head that mates with the punch head mounting part is covered with an elastic pad.

[0013] Because the elastic pad itself has a certain elastic deformation capacity, when the punch head is fitted onto the mounting part, the pad will be compressed and deformed, thereby filling any tiny gaps between the two, making the connection more secure, and further reducing the loosening or displacement of the punch head during operation. In addition, when installing or replacing the punch head, the elastic pad can alleviate the rigid friction between the punch head and the mounting part, preventing wear and deformation caused by direct friction or impact, thus extending the service life of both the punch head and the mounting part. Furthermore, the presence of the elastic pad provides a certain margin of error in the fit between the punch head and the mounting part; even if there are slight dimensional deviations, a good fit can be achieved through the elastic adjustment of the pad, reducing the need for excessively high machining precision.

[0014] Furthermore, a limiting cavity is formed between the upper part of the punch head mounting part and the end of the punch body;

[0015] The drilling device also includes a limiting block, which is housed in the limiting cavity and is integrally fitted onto the outer side of the upper part of the top rod.

[0016] The limiting block is confined within the limiting cavity. When the push rod moves under the action of the push rod pressing part, the limiting block moves along with the push rod. The spatial range of the limiting cavity directly restricts the movement range of the limiting block, thereby constraining the maximum movement distance of the push rod and preventing the push rod from having an excessive stroke due to excessive pressing.

[0017] Furthermore, a second elastic element is fitted on the outside of the limiting block, and the bottom of the second elastic element contacts the bottom of the limiting cavity.

[0018] When the experimenter presses the pressing part of the push rod to move it downwards and eject the agar block, the limiting block moves downwards along with the push rod. At this time, the second elastic element, which is fitted outside the limiting block, is compressed by the limiting block, deforms, and stores elastic potential energy. When the pressing part of the push rod is released, the second elastic element releases its elastic potential energy, pushing the limiting block upwards, which in turn causes the push rod to automatically return to its initial position. This eliminates the need for manual reset of the push rod, making the operation process more seamless and smooth, reducing operational intensity, and improving experimental efficiency.

[0019] Furthermore, a punch head detachment part is fitted on the outside of the punch head mounting part. The punch head detachment part can move linearly relative to the punch head mounting part along its own axis. When the punch head and the punch head mounting part maintain an interference fit, the end of the punch head detachment part contacts the end of the punch head.

[0020] When it is necessary to replace the punch head, simply push the detachment part towards the punch head. The end of the detachment part will then apply an axial thrust to the punch head, pushing it out of the mounting part. This reduces direct contact between the hand and the punch head, and reduces the possibility of infection or other health risks to laboratory personnel due to microorganisms adhering to the punch head during punching.

[0021] Furthermore, the punching device also includes a release pressing part, which is located on the side of the punching body away from the end of the punching head. By pressing the release pressing part, the release part of the punching head is driven to move linearly, thereby pushing the punching head to move linearly.

[0022] By placing the release mechanism on the side of the punch body away from the punch head, it conforms to ergonomic operating habits. The operator does not need to indirectly move the release mechanism by pressing this part; instead, the force applied by the hand is converted into a pushing force on the punch head. The operator can release the punch head with one hand, improving the ease of removal. Furthermore, because there is a certain distance between the release mechanism and the punch head, and the hand only contacts the release mechanism during operation, there is no need to approach the punch head area where experimental microorganisms may adhere, reducing the risk of the operator coming into contact with pathogenic or potentially harmful microorganisms.

[0023] Furthermore, the release pressing part is connected to the inside of the punch body through the first elastic element.

[0024] When the experimenter presses the release pressing part to drive the punch head release part to complete the punch head release operation, the external force of pressing is released, and the first elastic element will drive the release pressing part back to the initial position by its own elastic restoring force, eliminating the need for manual reset of the release pressing part.

[0025] This utility model has the following advantages:

[0026] This invention features a push rod and a push rod pressing part coaxial with the punching head. After punching, the experimenter only needs to press the push rod pressing part to move the push rod along its own axis, thus ejecting the agar block stuck in the punching head. This allows the experimenter to complete the punching process more smoothly, reduces operation interruption time, improves the convenience and efficiency of agar block removal, and reduces the complexity of the experimental operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the drilling device;

[0028] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the drilling device shown.

[0029] Figure 3 yes Figure 2 An enlarged schematic diagram of a portion of structure A in the punching device shown;

[0030] Figure 4 yes Figure 1 A schematic diagram showing the agar block remaining in the punch head after the punching device has punched a hole.

[0031] Figure 5 yes Figure 1 The diagram shows the punching device ejecting the agar block from the punching head;

[0032] Figure 6 yes Figure 3 A schematic diagram showing the removal of the punch head in the punching device shown.

[0033] In the picture:

[0034] 1. Punch body; 2. Release pressing part; 3. Top rod pressing part; 4. First connecting rod; 5. Top rod; 6. Second connecting rod; 7. First connecting piece; 8. Limiting block; 9. Punch head release part; 10. Punch head; 11. Punch head mounting part; 12. Second elastic element; 13. Agar block. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0036] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] As described in the background section, after punching a hole with this punch, agar blocks will remain inside the punch blade. At this time, sterile tweezers or other special instruments are needed to remove them from the punched tube. This extra operation increases the cumbersomeness of the experimental steps.

[0038] Example 1:

[0039] Therefore, in order to solve the above-mentioned technical problems existing in the prior art, this embodiment provides a plate punching device for antibacterial experiments, such as... Figures 1-3 As shown, the drilling device includes:

[0040] Hole punch body 1, such as Figure 3 As shown, a punching head 10 for punching agar plates is provided at one end of the puncher;

[0041] Top rod 5, which is coaxially mounted with the drilling head;

[0042] The push rod pressing part 3 is located at the other end of the punch body. By pressing the push rod pressing part, the push rod moves along its own axis to push out the agar block stuck in the punch head.

[0043] Specifically, the top rod is connected to the top rod mounting part via the first connecting rod 4. In use, the tester can hold the punch body, align the end with the punch head with the target position on the agar plate, and apply appropriate pressure vertically downwards to allow the punch head to cut into the agar and complete the punching, obtaining the desired agar block (e.g., ...). Figure 4 (As shown). After drilling, as... Figure 5 As shown, if the agar block remains inside the punch head 10, press the top rod pressing part at the other end of the main body. By pressing this part, the top rod, which is coaxial with the punch head, moves along its own axis, thereby pushing out the agar block that remains inside the punch head.

[0044] This embodiment features a push rod and a push rod pressing part coaxial with the punching head. After punching, the experimenter only needs to press the push rod pressing part to move the push rod along its own axis, easily ejecting the agar block stuck in the punching head. This allows the experimenter to complete the punching process more smoothly, reduces operation interruption time, improves the convenience and efficiency of agar block removal, and reduces the complexity of the experimental operation.

[0045] Specifically, such as Figure 3 As shown, a punching head mounting part 11 is fixed at the end of the punch away from the pressing part. The punching head is fitted on the outside of the punching head mounting part, and the punching head and the punching head mounting part are interference fit.

[0046] This embodiment uses an interference fit to fix the punch head to the mounting part, thereby improving the situation where loosening, displacement, or even detachment occurs during the punching process due to applied pressure or the reaction force of agar. Furthermore, when it is necessary to replace the punch head with a different specification, such as a punch head with a different hole diameter, to meet different experimental needs, or when the punch head needs cleaning, disinfection, or maintenance, only appropriate external force needs to be applied to remove the punch head from the mounting part, making the operation convenient. In this embodiment, the punch head can be a disinfected, disposable punch head.

[0047] Optionally, an elastic pad may be provided on the inner wall of the part of the punch head that is used to mate with the punch head mounting part.

[0048] Because the elastic pad itself has a certain elastic deformation capacity, when the punch head is fitted onto the mounting part, the pad will be compressed and deformed, thereby filling any tiny gaps between the two, making the connection more secure, and further reducing the loosening or displacement of the punch head during operation. In addition, when installing or replacing the punch head, the elastic pad can alleviate the rigid friction between the punch head and the mounting part, preventing wear and deformation caused by direct friction or impact, thus extending the service life of both the punch head and the mounting part. Furthermore, the presence of the elastic pad provides a certain margin of error in the fit between the punch head and the mounting part; even if there are slight dimensional deviations, a good fit can be achieved through the elastic adjustment of the pad, reducing the need for excessively high machining precision.

[0049] Optional, such as Figure 2 As shown, a limiting cavity 1A is formed between the upper part of the punch head mounting part and the end of the punch body;

[0050] The drilling device may also include a limiting block 8, which is housed in the limiting cavity and is integrally fitted onto the outer side of the upper part of the top rod.

[0051] The limiting block is confined within the limiting cavity. When the push rod moves under the action of the push rod pressing part, the limiting block moves along with the push rod. The spatial range of the limiting cavity directly restricts the movement range of the limiting block, thereby constraining the maximum movement distance of the push rod and preventing the push rod from having an excessive stroke due to excessive pressing.

[0052] Optionally, a second elastic element 12 is fitted on the outside of the limiting block, and the bottom of the second elastic element contacts the bottom of the limiting cavity.

[0053] In this embodiment, the second elastic element can be a spring, with the upper part of the spring fitted around the outside of the limiting block and the bottom contacting the bottom of the limiting cavity. When the experimenter presses the pressing part of the push rod to move the push rod downwards to eject the agar block, the limiting block moves downwards along with the push rod. At this time, the second elastic element fitted around the outside of the limiting block is compressed by the limiting block, deforms, and stores elastic potential energy. When the pressing part of the push rod is released, the second elastic element releases the elastic potential energy, pushing the limiting block upwards, thereby causing the push rod to automatically return to its initial position. This eliminates the need for manual reset of the push rod, making the operation process more seamless and smooth, reducing operational intensity, and improving experimental efficiency.

[0054] In addition, a punch head detachment part 9 can be fitted on the outside of the punch head mounting part. The punch head detachment part can move linearly relative to the punch head mounting part along its own axis. When the punch head and the punch head mounting part maintain an interference fit, the end of the punch head detachment part contacts the end of the punch head.

[0055] When it is necessary to replace the punch head, such as Figure 6 As shown, simply pushing the detachment part towards the punch head will allow the end of the detachment part to apply an axial thrust to the punch head, pushing it out of the mounting part. This reduces direct contact between the hand and the punch head, and reduces the possibility of infection or other health risks to laboratory personnel due to microorganisms adhering to the punch head during punching.

[0056] Optionally, the punching device further includes a release pressing part 2, which is disposed on the side of the punching body away from the end of the punching head. By pressing the release pressing part, the release part of the punching head is driven to move linearly, thereby pushing the punching head to move linearly.

[0057] In this embodiment, the detachment pressing part can be connected to the punch head detachment part via the second connecting rod 6. By positioning the detachment pressing part on the side of the punch body furthest from the punch head, it conforms to ergonomic operating habits. The experimenter indirectly drives the punch head detachment part by pressing this part, converting the force applied by the hand into a pushing force on the punch head. The experimenter can detach the punch head with one hand, improving the convenience of detachment. Furthermore, since there is a certain distance between the detachment pressing part and the punch head, and the hand only contacts the detachment pressing part during operation, there is no need to approach the punch head area where experimental microorganisms may adhere, reducing the risk of the experimenter coming into contact with pathogenic or potentially harmful microorganisms.

[0058] Optionally, the release pressing part can be connected to the inside of the punch body through a first elastic element.

[0059] When the experimenter presses the release pressing part to drive the punch head release part to complete the punch head release operation, the external force of pressing is released, and the first elastic element will drive the release pressing part back to the initial position by its own elastic restoring force, eliminating the need for manual reset of the release pressing part.

[0060] In this embodiment, the first elastic element can also be a spring.

[0061] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for punching a plate for a bacteria inhibition experiment, characterized by comprising: include: The punch body has a punching head at one end for punching holes in agar plates; A push rod, which is coaxially mounted with the punch head; The push rod pressing part is located at the other end of the punch body. By pressing the push rod pressing part, the push rod moves along its own axis to push out the agar block stuck in the punch head.

2. The apparatus according to claim 1, wherein A punching head mounting part is fixed at the end of the punch away from the pressing part. The punching head is fitted onto the outside of the punching head mounting part, and the punching head and the punching head mounting part are interference fit.

3. The apparatus according to claim 2, wherein An elastic pad is provided on the inner wall of the punch head for use with the punch head mounting part.

4. The apparatus according to claim 2, wherein A limiting cavity is formed between the upper part of the punch head mounting section and the end of the punch body; The drilling device also includes a limiting block, which is housed in the limiting cavity and is integrally fitted onto the outer side of the upper part of the top rod.

5. The apparatus according to claim 4, wherein A second elastic element is fitted on the outside of the limiting block, and the bottom of the second elastic element contacts the bottom of the limiting cavity.

6. The apparatus according to claim 2, wherein A punch head detachment part is fitted on the outside of the punch head mounting part. The punch head detachment part can move linearly relative to the punch head mounting part along its own axis. When the punch head and the punch head mounting part maintain an interference fit, the end of the punch head detachment part contacts the end of the punch head.

7. The apparatus according to claim 6, wherein The punching device also includes a release pressing part, which is located on the side of the punching body away from the end of the punching head. By pressing the release pressing part, the release part of the punching head is driven to move linearly, thereby pushing the punching head to move linearly.

8. The apparatus according to claim 7, wherein The release pressing part is connected to the inside of the punch body through the first elastic element.

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