Edible mushroom sampling and spore collecting device
By designing an adjustable-length edible fungus sampling and spore collection device, the problems of inconvenience and low purity in edible fungus spore collection in existing technologies have been solved, achieving efficient and pollution-free spore collection, and is suitable for the sampling needs of various edible fungi.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-24
AI Technical Summary
Existing methods for collecting edible fungi spores have problems such as limited applicability, inconvenient operation, low spore purity, and susceptibility to contamination, especially when spores come into contact with impurities.
An adjustable-length edible fungus sampling and spore collection device was designed, including an inner cylinder, an outer cylinder, and a cap. The device is sealed with threads and O-rings to ensure its airtightness and flexibility, adapting to different sizes of edible fungi and spore ejection distances. The ejection spore collection method is used to collect spores in a sterile environment.
It improves the purity and efficiency of spore collection, reduces mechanical damage, ensures the authenticity and integrity of collected samples, and adapts to the diverse edible fungi spore sampling needs.
Smart Images
Figure CN224022517U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edible fungi cultivation and scientific research, and in particular to an edible fungi sampling and spore collection device. Background Technology
[0002] Currently, similar technologies mainly rely on the principle of ejection after edible fungi spores mature to collect them. The collection equipment combines mechanical assistance, culture medium assistance, and aseptic preservation techniques, which can help practitioners and researchers collect edible fungi spores to some extent. However, existing methods have certain problems in terms of applicability and ease of operation, which may lead to inconvenience and inefficiency in edible fungi sampling and spore collection, resulting in sampling failure or low spore survival rates.
[0003] Existing methods mainly collect spores through spore ejection, spore liquid leaching, and spore printing. Among these methods, spore liquid leaching and spore printing involve direct contact between liquids or solids and edible fungi. Obviously, this can lead to the spores to be separated coming into contact with impurities such as dust, which can cause other types of spores to be mixed into the spores to be separated, resulting in poor collection results. Utility Model Content
[0004] The main purpose of this invention is to provide a device for collecting edible fungi and their spores, which aims to flexibly adjust the length of the collection tube to meet the needs of sample collection and spore collection of edible fungi of different lengths (sizes).
[0005] To achieve the above objectives, the edible fungi sampling and spore collection device proposed in this utility model includes:
[0006] The inner cylinder has through holes that open at both ends along the front and back;
[0007] An outer cylinder is movably fitted onto the front end of the inner cylinder in the front-back direction for placing edible fungi, and the front end of the outer cylinder is sealed.
[0008] The cap is detachably connected to the rear end of the inner cylinder and covers the rear end of the inner cylinder.
[0009] In one embodiment, the inner cylinder includes a first section, a second section, and a third section arranged sequentially in a rearward direction;
[0010] The first section is used to connect to the outer cylinder;
[0011] The inner diameter of the second segment gradually increases in the rearward direction;
[0012] The third section extends rearward, and the cover is detachably connected to the third section of the inner cylinder and covers the rear end of the inner cylinder.
[0013] In one embodiment, a filter screen is connected to the rear end of the third section of the inner cylinder.
[0014] In one embodiment, the outer peripheral wall at the front end of the inner cylinder is provided with an external thread for threaded connection at the rear end of the outer cylinder.
[0015] In one embodiment, the inner cylinder and the outer cylinder are connected by double-threaded connections; and / or,
[0016] The outer diameter of the inner cylinder gradually increases along the front direction, and the inner diameter of the outer cylinder gradually decreases along the front direction.
[0017] In one embodiment, the threaded connection between the inner cylinder and the outer cylinder is coated with an anti-slip coating.
[0018] In one embodiment, a sealing groove is recessed on the circumferential side of the front end of the inner cylinder, and an O-ring is provided in the sealing groove to seal with the outer cylinder.
[0019] In one embodiment, the inner cylinder, outer cylinder, and cap are made of a high-temperature resistant transparent material.
[0020] In one embodiment, the edible fungus sampling and spore collection device further includes a connecting cylinder disposed between the inner cylinder and the outer cylinder in a front-back direction, so as to increase the travel distance of the outer cylinder in the front-back direction.
[0021] In one embodiment, the outer peripheral wall of the front end of the inner cylinder is provided with an external thread for threaded connection to the inner peripheral wall of the rear end of the connecting cylinder;
[0022] The outer peripheral wall at the front end of the connecting cylinder is provided with external threads for threaded connection at the rear end of the outer cylinder;
[0023] The outer diameter of the inner cylinder gradually increases along the forward direction, the inner diameter of the rear end of the connecting cylinder gradually decreases along the forward direction, the outer diameter of the front end of the connecting cylinder gradually increases along the forward direction, and the inner diameter of the outer cylinder gradually decreases along the forward direction.
[0024] In the technical solution of this utility model, the edible fungus sampling and spore collection device can be used for sampling edible fungi and collecting spores. It is important to understand that during the collection and transportation of edible fungi, repeated collisions between the fungi sample and the sampling device can easily occur, causing sample damage or morphological changes, affecting subsequent analysis. Therefore, by adjusting the relative positions of the outer and inner cylinders, the length of the device can be flexibly adjusted according to the size and growth environment of different edible fungi, allowing the edible fungus sample to be stably stored in a closed environment. This reduces mechanical damage and improves the adaptability and convenience of field sample collection. Furthermore, the closed structure effectively avoids external contamination, ensuring the authenticity and integrity of the collected samples. When spore collection begins, the cap is removed from the rear end of the inner cylinder, and the sterilized edible fungus is placed inside the outer cylinder. A corresponding culture dish is then connected to the rear end of the inner cylinder, allowing spore collection in a closed environment and avoiding contamination issues common during fungal isolation. Furthermore, it should be noted that different edible fungi have different spore ejection distances. Therefore, the position of the outer cylinder can be adjusted along the front-to-back direction according to the type of edible fungus, thereby adjusting the length of the collection device to accommodate different ejection distances. This is suitable not only for edible fungi with longer ejection distances but also for those producing mucilaginous spores (with shorter ejection distances, mainly passive detachment), such as bamboo fungus, meeting diverse sampling needs. When no spores are being collected, the cap remains connected to the inner cylinder, thus preventing contamination of the cylinder's interior. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0026] Figure 1 A schematic diagram of an embodiment of the edible fungi sampling and spore collection device provided by this utility model;
[0027] Figure 2 for Figure 1 A schematic diagram of the edible fungi sampling and spore collection device before it is deployed;
[0028] Figure 3 for Figure 2 A schematic diagram of the threaded connection at point A.
[0029] Explanation of icon numbers:
[0030] 100. Edible fungi sampling and spore collection device; 1. Inner cylinder; 11. First section; 12. Second section; 13. Third section; 2. Outer cylinder; 3. Cover; 4. Filter screen; 5. Connecting cylinder.
[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0033] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.
[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0035] This utility model proposes an edible fungi sampling and spore collection device 100.
[0036] Please see Figure 1-2 In one embodiment of this utility model, the edible fungus sampling and spore collection device 100 includes an inner cylinder 1, an outer cylinder 2, and a cap 3. The inner cylinder 1 is open at both ends, and the outer cylinder 2 is movably fitted onto the front end of the inner cylinder 1 in the front-rear direction, with the front section of the outer cylinder 2 being sealed. The cap 3 is detachably connected to the rear end of the inner cylinder 1 and covers the rear end of the inner cylinder 1.
[0037] It should be noted that this utility model collects spores using a spore ejection method. Specifically, the spore ejection method refers to the characteristic of edible fungi (such as Ganoderma lucidum, shiitake mushrooms, etc.) naturally ejecting spores after maturation. Sterilized mushroom spawn is suspended inside a glass bell jar, with a petri dish placed below. Under certain conditions, the spores are left to stand for 12-20 hours, and they are naturally ejected into the petri dish. This spore ejection method allows for the collection of spores in a sterile and sealed space, effectively avoiding interference from impurities, ensuring higher purity of the collected spores, and significantly improving the efficiency and accuracy of spore collection.
[0038] In this invention, the specific shape of the cap 3 is not limited, as long as it can cover the rear end of the inner cylinder 1. The cap 3 and the inner cylinder 1 can be detachably connected by a snap-fit connection. In order to improve the sealing performance and connection strength, an external thread can also be provided on the outer peripheral wall of the rear end of the inner cylinder 1 for the cap 3 to be threaded.
[0039] Furthermore, the outer cylinder 2 is movably fitted onto the front end of the inner cylinder 1 in the front-back direction. This utility model does not limit the travel of the outer cylinder 2 and can be changed according to actual needs.
[0040] In the technical solution of this utility model, the edible fungus sampling and spore collection device can be used for sampling edible fungi and collecting spores. It is important to understand that during the collection and transportation of edible fungi, repeated collisions between the fungi sample and the sampling device can easily occur, causing sample damage or morphological changes, affecting subsequent analysis. Therefore, by adjusting the relative positions of the outer and inner cylinders, the length of the device can be flexibly adjusted according to the size and growth environment of different edible fungi, allowing the edible fungus sample to be stably stored in a closed environment. This reduces mechanical damage and improves the adaptability and convenience of field sample collection. Furthermore, the closed structure effectively avoids external contamination, ensuring the authenticity and integrity of the collected samples. When spore collection begins, the cap is removed from the rear end of the inner cylinder, and the sterilized edible fungus is placed inside the outer cylinder. A corresponding culture dish is then connected to the rear end of the inner cylinder, allowing spore collection in a closed environment and avoiding contamination issues common during fungal isolation. Furthermore, it should be noted that different edible fungi have different spore ejection distances. Therefore, the position of the outer cylinder can be adjusted along the front-to-back direction according to the type of edible fungus, thereby adjusting the length of the collection device to accommodate different ejection distances. This is suitable not only for edible fungi with longer ejection distances but also for those producing mucilaginous spores (with shorter ejection distances, mainly passive detachment), such as bamboo fungus, meeting diverse sampling needs. When no spores are being collected, the cap remains connected to the inner cylinder, thus preventing contamination of the cylinder's interior.
[0041] Specifically, in one embodiment of this utility model, the inner cylinder 1 includes a first section 11, a second section 12, and a third section 13 arranged sequentially in a rearward direction; wherein, the first section 11 is used to connect to the outer cylinder 2; the inner diameter of the second section 12 gradually increases in the rearward direction; the third section 13 extends in the rearward direction, and the cap 3 is detachably connected to the third section 13 of the inner cylinder 1 and covers the rear end of the inner cylinder 1. Both the cap 3 and the culture dish are detachably connected to the third section 13. By setting the second section 12 with its gradually increasing inner diameter in the rearward direction, the movement of the outer cylinder 2 is restricted, preventing the outer cylinder 2 from moving to the rear end of the inner cylinder 1 and affecting the cap 3 or the culture dish from which spores are being collected. This utility model does not limit the height (or the tilt angle) of the second section 12, as long as it can block the outer cylinder 2. Furthermore, it is understood that the size of the third section 13 can be set to fit the size of commonly used culture dishes, thus eliminating the need for additional connecting devices and facilitating operation. Specifically, in one embodiment, the height of the edible fungus sampling and spore collection device 100 is approximately 100 mm when it is not fully extended and approximately 180 mm when it is fully extended. The third segment 13 can be designed to work with a conventional edible fungus solid culture dish (90 mm). With this design, it can be adapted to most edible fungi and conventional solid culture dishes.
[0042] To further improve spore purity, in one embodiment of this invention, a filter screen 4 is connected to the rear end of the third section 13 of the inner cylinder 1 to filter the spores, ensuring high-purity collection and avoiding impurities. This invention does not limit the specific mesh size and material of the filter screen; the mesh size can be 400 mesh, 500 mesh, or 600 mesh. In one embodiment, a 500-mesh polyimide filter screen can be used, which effectively filters spores and blocks impurities while being heat-resistant.
[0043] To improve the reliability of the connection between the inner cylinder 1 and the outer cylinder 2, in one embodiment of this invention, the outer peripheral wall at the front end of the inner cylinder 1 is provided with an external thread for threaded connection at the rear end of the outer cylinder 2. By threading the inner cylinder 1 and the outer cylinder 2 together, the position of the outer cylinder 2 can be reliably and quickly adjusted. Furthermore, using the external thread of the inner cylinder 1 and the internal thread at the rear end of the outer cylinder 2 to connect reduces the problem of dust and debris falling into the device during the threading process. It should be noted that for applications where the device height does not need to be changed, the threaded connection can be adapted to a snap-fit connection or a magnetic connection; this invention does not impose any limitations on this.
[0044] Furthermore, in order to meet the needs of increasing the adjustment stroke and quickly adjusting the position of the outer cylinder 2, in one embodiment of this utility model, the inner cylinder 1 and the outer cylinder 2 are connected by a double-threaded connection, thereby achieving double the stroke.
[0045] In addition, please see Figure 2 In one embodiment of this utility model, the outer diameter of the inner cylinder 1 gradually increases along the forward direction, and the inner diameter of the outer cylinder 2 gradually decreases along the forward direction. It can be understood that the condition for thread self-locking is that the thread helix angle ψ is less than the friction angle ρ', and the thread helix angle ψ = arctan(nP / (πd)). 2 By setting it in this way, without changing the overall size of the device, the nominal diameter d of the threaded connection gradually increases in the forward direction, thereby increasing the thread helix angle ψ, making it easier to achieve self-locking. That is, in this embodiment, as the outer cylinder 2 moves backward (the number of threaded connection sections between the inner cylinder 1 and the outer cylinder 2 increases, and the nominal diameter d increases), the thread gradually achieves self-locking, so that when the collection device is squeezed in the forward and backward directions due to an accident, it can achieve self-locking in time to prevent further compression and damage to the sample.
[0046] Furthermore, in order to enhance the self-locking effect, in one embodiment of this utility model, the threaded connection between the inner cylinder 1 and the outer cylinder 2 is coated with an anti-slip coating, thereby increasing the friction coefficient of the threads, and thus increasing the friction angle ρ', thereby improving the self-locking effect.
[0047] It is understandable that, since the inner cylinder 1 is threadedly connected to the outer cylinder 2, and the edible fungi and culture dishes in the edible fungi sampling and spore collection device 100 are very sensitive to dust, particles, and other contaminants, poor sealing can affect the collection effect. Therefore, in one embodiment of this invention, a sealing groove is recessed on the circumferential side of the front end of the inner cylinder 1, and an O-ring is provided in the sealing groove for sealing with the outer cylinder 2. Specifically, the depth and width of the sealing groove should match the O-ring to ensure that the O-ring can be properly compressed after installation, thereby providing a good sealing effect by interference fit within the sealing groove 32. In addition, when the inner cylinder 1 is threadedly connected to the cap 3, it is understood that the sealing performance of the threaded connection is usually insufficient to meet strict sealing requirements. Similarly, a sealing groove can be recessed at the external thread at the rear end of the inner cylinder 1, and an O-ring can be provided in the sealing groove to improve the sealing performance. Specifically, the material of the O-ring can be rubber or silicone. This invention does not limit the specific material and can be changed according to actual needs, as long as it can achieve a sealing effect.
[0048] Furthermore, in one embodiment of this invention, the inner cylinder 1, outer cylinder 2, and cap 3 are made of a high-temperature resistant transparent material, thereby extending the service life of the device and facilitating observation. The high-temperature resistant transparent material can be high-temperature resistant PPSU (polyphenylene sulfone), which meets high-temperature requirements while maintaining high transparency for easy observation; or it can be PEEK (polyether ether ketone), which has strong high-temperature resistance and can withstand high-pressure steam sterilization. This invention does not limit the specific material used.
[0049] In order to further increase the adjustable range of the device, in one embodiment of the present invention, the edible fungus sampling and spore collection device 100 further includes a connecting cylinder 5, which is disposed between the inner cylinder 1 and the outer cylinder 2 in the front-back direction, so as to increase the travel of the outer cylinder 2 in the front-back direction. In this way, the adjustment range of the length of the connecting cylinder 5 can be increased to accommodate more edible fungus spore shooting distances.
[0050] It is understandable that the connecting cylinder 5 can also be threadedly connected to the inner cylinder 1 and the outer cylinder 2, thus also facing the self-locking problem. Therefore, as Figure 2-3 As shown, in one embodiment of this utility model, the outer peripheral wall of the front end of the inner cylinder 1 is provided with an external thread for threaded connection to the inner peripheral wall of the rear end of the connecting cylinder 5; the outer peripheral wall of the front end of the connecting cylinder 5 is provided with an external thread for threaded connection to the rear end of the outer cylinder 2; the outer diameter of the inner cylinder 1 gradually increases along the forward direction, the inner diameter of the rear end of the connecting cylinder 5 gradually decreases along the forward direction, the outer diameter of the front end of the connecting cylinder 5 gradually increases along the forward direction, and the inner diameter of the outer cylinder 2 gradually decreases along the forward direction. This design makes it easier for each threaded connection to self-lock during the gradual decrease in length of the edible fungus sampling and spore collection device 100, thus ensuring timely self-locking in case the collection device is accidentally compressed in the forward and backward direction, preventing further compression and damage to the sample.
[0051] Similarly, the threaded connection between the connecting cylinder 5 and the inner cylinder 1 and the outer cylinder 2 can be coated with anti-slip material, the peripheral side of the front end of the connecting cylinder 5 is recessed with a sealing groove, and the connecting cylinder 5 is made of high temperature resistant transparent material. The beneficial effects produced are the same as those described above, and will not be repeated in detail in this utility model.
[0052] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A device for sampling and collecting spores of edible fungi, characterized in that, The edible fungi sampling and spore collection device includes: The inner cylinder has through holes that open at both ends along the front and back; An outer cylinder is movably fitted onto the front end of the inner cylinder in the front-back direction for placing edible fungi, and the front end of the outer cylinder is sealed. The cap is detachably connected to the rear end of the inner cylinder and covers the rear end of the inner cylinder.
2. The edible fungi sampling and spore collection device as described in claim 1, characterized in that, The inner cylinder includes a first section, a second section, and a third section arranged sequentially in a rearward direction; The first section is used to connect to the outer cylinder; The inner diameter of the second segment gradually increases in the rearward direction; The third section extends rearward, and the cover is detachably connected to the third section of the inner cylinder and covers the rear end of the inner cylinder.
3. The edible fungi sampling and spore collection device as described in claim 2, characterized in that, A filter screen is connected to the rear end of the third section of the inner cylinder.
4. The edible fungi sampling and spore collection device as described in claim 1, characterized in that, The outer peripheral wall at the front end of the inner cylinder is provided with external threads for threaded connection at the rear end of the outer cylinder.
5. The edible fungi sampling and spore collection device as described in claim 4, characterized in that, The inner cylinder and the outer cylinder are connected by a double-threaded connection; and / or The outer diameter of the inner cylinder gradually increases along the front direction, and the inner diameter of the outer cylinder gradually decreases along the front direction.
6. The edible fungi sampling and spore collection device as described in claim 4, characterized in that, The threaded connection between the inner cylinder and the outer cylinder is coated with an anti-slip coating.
7. The edible fungi sampling and spore collection device as described in claim 4, characterized in that, The inner cylinder has a sealing groove recessed on its front end peripheral side, and an O-ring is provided in the sealing groove to seal with the outer cylinder.
8. The edible fungi sampling and spore collection device as described in claim 1, characterized in that, The inner cylinder, outer cylinder, and cap are made of high-temperature resistant transparent material.
9. The edible fungi sampling and spore collection device as described in claim 1, characterized in that, The edible fungi sampling and spore collection device also includes a connecting cylinder, which is disposed between the inner cylinder and the outer cylinder in the front-back direction to increase the travel distance of the outer cylinder in the front-back direction.
10. The edible fungi sampling and spore collection device as described in claim 9, characterized in that, The outer peripheral wall at the front end of the inner cylinder is provided with external threads for threaded connection to the inner peripheral wall at the rear end of the connecting cylinder. The outer peripheral wall at the front end of the connecting cylinder is provided with external threads for threaded connection at the rear end of the outer cylinder; The outer diameter of the inner cylinder gradually increases along the forward direction, the inner diameter of the rear end of the connecting cylinder gradually decreases along the forward direction, the outer diameter of the front end of the connecting cylinder gradually increases along the forward direction, and the inner diameter of the outer cylinder gradually decreases along the forward direction.