Bacterial liquid inoculating needle with filtering function

Abstract

The utility model relates to the technical field of bacteria liquid inoculating needles, and discloses a bacteria liquid inoculating needle with a filtering function, which comprises a needle tube and a needle head, the lower end of the needle tube is fixedly connected with a connecting tube, the connecting tube is communicated with the inside of the needle tube, and the outer wall of the needle head is fixedly connected with a needle seat matched with the connecting tube. A filtering assembly is arranged in the needle tube, and the lower end of the needle tube is fixedly connected with an anti-loosening assembly used for preventing the needle base from loosening. According to the bacterial liquid inoculating needle with the filtering function, the needle base can be well reinforced through the anti-loosening assembly at the lower end of the needle tube, so that the situation that after the needle head is blocked, people continue to push the inoculating needle, and consequently the needle head flies out is effectively prevented, and the safety of the inoculating needle is higher when the inoculating needle is used; hyphae in the bacteria liquid can be well filtered, so that the hyphae can be effectively prevented from entering the needle head and blocking the needle head, and the normal use of the inoculating needle is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bacterial liquid inoculation needles, in particular to a bacterial liquid inoculation needle with a filtering function. Background Art

[0002] Inoculation tests are very important for plants, especially for large-scale crop areas. It is necessary to understand their pathogen resistance, disease control, and disease prevention, especially for plants such as sugarcane. When doing inoculation in agricultural research, it is necessary to cultivate a kind of bacteria and then inject this bacteria into the rhizomes of plants such as sugarcane, and then observe the growth of the plants. When injecting the bacterial solution, an inoculation needle is usually required. The structure of the commonly used injection inoculation needle is similar to that of a medical syringe and its usage principle is similar.

[0003] When using the inoculation needle, first pull out the needle, absorb the bacterial liquid in the culture dish, install the needle, and inject the bacterial liquid into the rhizome of the plant. The bacterial liquid contains tiny hyphae. Each time the injection is made, the hyphae can easily block the needle, which not only affects the normal use of the inoculation needle, but also after the needle is blocked, if people continue to push the inoculation needle, the excessive pressure in the inoculation needle will cause the needle to fly out, thus posing a certain safety hazard.

[0004] In order to solve the above problems, this application proposes a bacterial liquid inoculation needle with a filtering function. Utility Model Content

[0005] The utility model is intended to provide a bacterial liquid inoculation needle with a filtering function, which is mainly used to solve the problem that when the existing inoculation needle is used, the mycelium in the bacterial liquid can easily block the needle tip, which not only affects the normal use of the inoculation needle, but also after the needle tip is blocked, if people continue to push the inoculation needle, the needle tip will be separated, thus posing a safety hazard.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A bacterial liquid inoculation needle with a filtering function comprises a needle tube and a needle with one end inserted into the needle tube, the lower end of the needle tube is fixedly connected to a connecting tube, and the connecting tube is communicated with the interior of the needle tube, the outer wall of the needle head is fixedly connected to a needle seat matching the connecting tube, the interior of the needle tube is provided with a filtering component to prevent the needle from being blocked, and the lower end of the needle tube is fixedly connected to an anti-loosening component for preventing the needle seat from loosening.

[0008] The working principle and beneficial effects of this utility model:

[0009] 1. Working principle: When using the bacterial liquid inoculation needle, first remove the needle, then insert the connecting tube at the lower end of the needle tube into the inside of the bacterial liquid culture dish and suck the bacterial liquid into the needle tube. The filter component provided inside the needle tube can effectively filter the mycelium inside the bacterial liquid, thereby ensuring the normal use of the inoculation needle; after the bacterial liquid is absorbed, the needle seat on the needle head is inserted into the connecting tube, one end of the needle is inserted into the needle tube, and then the needle seat is reinforced by the anti-loosening component to prevent the needle from loosening. Finally, the needle head is inserted into the rhizome of the plant to inject the bacterial liquid into the rhizome of the plant.

[0010] 2. Beneficial effect: When the inoculation needle is used, the anti-loosening component at the lower end of the needle tube can better reinforce the needle seat, thereby effectively preventing people from continuing to push the inoculation needle after the needle is blocked, causing the needle to fly out, thereby making the inoculation needle safer when used. The filter component arranged inside the needle tube can better filter the mycelium inside the bacterial liquid, which can effectively prevent the mycelium from entering the needle and blocking the needle, thereby effectively ensuring the normal use of the inoculation needle.

[0011] Preferably, the filter assembly includes a fixed seat arranged inside the needle tube, the outer wall of the fixed seat is fixedly connected to multiple connecting rods, the other end of the connecting rod is fixedly connected to the inner wall of the needle tube, the bottom of the fixed seat is fixedly connected to a spring, the lower end of the spring is fixedly connected to an annular block, the inner wall of the annular block is fixedly connected to a rubber plug, and the upper end of the needle can pass through the rubber plug to communicate with the inside of the needle tube; the lower end of the outer wall of the annular block is fixedly connected to a filter membrane, the side of the filter membrane away from the annular block is set against the inner wall of the needle tube, and the filter membrane is slidably connected to the inner wall of the needle tube. When the bacterial liquid in the bacterial liquid culture dish is sucked into the needle tube, the inside of the needle tube will be in a negative pressure state, causing the annular block to move upward and squeeze the spring to compress it. The outer diameter of the annular block is smaller than the diameter of the inner wall of the needle tube, and the inner diameter is larger than the diameter of the outer wall of the connecting tube. Therefore, the bacterial liquid passes through the edge of the annular block and then is filtered through the filter membrane into the interior of the needle tube, while the mycelium inside the bacterial liquid stays below the filter membrane. When the bacterial liquid is stopped, the annular block will move downward under the action of the spring and fit into the bottom of the inner wall of the needle tube. When the bacterial liquid is injected into the rhizome of the plant, the needle seat with the needle tip is fixed on the connecting tube, the upper end of the needle seat will penetrate the rubber stopper, and then the lower end of the needle tip can be inserted into the rhizome of the plant to inject the bacterial liquid into the rhizome of the plant. This can prevent the mycelium from entering the needle tip and blocking the needle tip, thereby effectively ensuring the normal use of the inoculation needle.

[0012] Preferably, the anti-loosening assembly includes a threaded ring fixedly connected to the lower end of the needle tube, the outer wall of the threaded ring is provided with a threaded sleeve, and the threaded sleeve is threadedly connected to the threaded ring, the lower end of the threaded ring is fixedly connected to a symmetrical elastic plate, the lower end of one side of the elastic plate is fixedly connected to a wedge block, and the other end is fixedly connected to a limit block, the outer wall of the needle seat is provided with a limit groove that matches the limit block, and the wall surface of the needle seat is located between the connecting tube and the elastic plate. After the needle seat at the upper end of the needle is inserted into the connecting tube, the threaded sleeve is rotated to move it downward. When the bottom of the inner wall of the threaded sleeve abuts against the inclined surface of the wedge block at the lower end of the elastic plate, the threaded sleeve is further rotated downward to bend the elastic plate. When the limit block at the lower end of the elastic plate is inserted into the limit groove on the needle seat, the needle seat can be effectively reinforced, thereby effectively preventing the needle from loosening.

[0013] Preferably, the outer wall of the needle seat is fixedly connected with a convex strip, and the inner wall of the threaded ring is provided with a vertical groove matching the convex strip. When installing the needle, the convex strip fixed to the outer wall of the needle seat and the vertical groove provided on the inner wall of the threaded ring are used to align the convex strip with the vertical groove, and then the needle seat is inserted into the connecting tube, which can better position and guide the needle seat. This not only makes the installation of the needle more convenient, but also makes the needle head more stable after installation.

[0014] Preferably, the corner at the bottom of the inner wall of the threaded sleeve is chamfered. When the bottom of the inner wall of the threaded sleeve squeezes the wedge block on the elastic plate, the contact area between the threaded sleeve and the wedge block can be increased by setting the corner at the bottom of the inner wall of the threaded sleeve as a chamfer, thereby effectively reducing the wear of the threaded sleeve on the wedge block.

[0015] Preferably, the outer wall of the threaded sleeve is provided with a rubber sleeve, and the outer wall of the rubber sleeve is provided with anti-slip grooves. The rubber sleeve provided on the outer wall of the threaded sleeve can make people's hands more comfortable when holding the threaded sleeve, and the anti-slip grooves provided on the outer wall of the rubber sleeve can increase the friction between people's hands and the threaded sleeve, thereby effectively preventing people's hands from slipping when turning the threaded sleeve.

[0016] Preferably, the needle tube is transparent and has scale lines on its outer wall, which makes it easier for researchers to observe the amount of bacterial liquid absorbed by the needle tube, thereby making the inoculation needle more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a partially enlarged cross-sectional structural schematic diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the overall structure of the needle and needle seat of the utility model;

[0020] Figure 4This is a partially enlarged cross-sectional structural diagram of the needle tube of the present invention.

[0021] In the figure: 1. needle tube; 2. needle; 3. connecting tube; 4. needle seat; 5. fixing seat; 6. connecting rod; 7. spring; 8. annular block; 9. rubber plug; 10. threaded ring; 11. threaded sleeve; 12. elastic plate; 13. wedge block; 14. limit block; 15. limit groove; 16. convex strip; 17. vertical groove; 18. rubber sleeve; 19. scale line; 20. filter membrane. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 A bacterial liquid inoculation needle with a filtering function includes a needle tube 1 and a needle head 2. The needle tube 1 is transparent, and a scale line 19 is provided on the outer wall of the needle tube 1, which makes it convenient for researchers to observe the amount of bacterial liquid absorbed by the needle tube 1, thereby making the inoculation needle more practical. The lower end of the needle tube 1 is fixedly connected to a connecting tube 3, and the connecting tube 3 is connected to the interior of the needle tube 1. The outer wall of the needle head 2 is fixedly connected to a needle seat 4 that matches the connecting tube 3. When the bacterial liquid inoculation needle is used, the needle head 2 is first removed, and then the connecting tube 3 at the lower end of the needle tube 1 is inserted into the needle seat 4. Insert the bacteria liquid into the culture dish and suck the bacteria liquid into the needle tube 1, then insert the needle seat 4 at the upper end of the needle 2 into the connecting tube 3, and the lower end of the needle tube 1 is fixedly connected with an anti-loosening component for preventing the needle seat 4 from loosening. The needle seat 4 is reinforced by the anti-loosening component to prevent the needle 2 from loosening. A filtering component is provided inside the needle tube 1. The bacteria liquid can be injected into the rhizome of the plant by inserting the needle 2 into the rhizome of the plant. The filtering component provided inside the needle tube 1 can better filter the mycelium inside the bacteria liquid, thereby ensuring the normal use of the inoculation needle.

[0024] like Figure 2 and Figure 4As shown, the filter assembly includes a fixing seat 5 arranged inside the needle tube 1, and the outer wall of the fixing seat 5 is fixedly connected to a plurality of connecting rods 6, the other end of the connecting rod 6 is fixedly connected to the inner wall of the needle tube 1, and the bottom of the fixing seat 5 is fixedly connected to a spring 7, and the lower end of the spring 7 is fixedly connected to an annular block 8, and the inner wall of the annular block 8 is fixedly connected to a rubber stopper 9, and the lower end of the outer wall of the annular block 8 is fixedly connected to a filter membrane 20. The side of the filter membrane 20 away from the annular block 8 is always set against the inner wall of the needle tube 1, and the filter membrane 20 is slidably connected to the inner wall of the needle tube 1. When the bacterial liquid in the bacterial liquid culture dish is sucked into the inside of the needle tube 1, the inside of the needle tube 1 will be in a negative pressure state, causing the annular block 8 to move upward and squeeze the spring 7 to be in a compressed state. The outer diameter of the annular block 8 is smaller than the diameter of the inner wall of the needle tube 1, and the inner diameter is larger than the diameter of the outer wall of the connecting tube 3, so the bacterial liquid passes through the edge of the annular block 8 and is filtered through the filter membrane 20 before entering the inner wall of the needle tube 1. 9, and the mycelium inside the bacterial liquid stays under the filter membrane 20, ensuring that there is no mycelium in the bacterial liquid in the needle tube 1; when the bacterial liquid is stopped, the annular block 8 will move downward under the action of the spring 7 and fit into the bottom of the inner wall of the needle tube 1. When the bacterial liquid is injected into the rhizome of the plant, after the needle seat 4 with the needle head 2 is fixed on the connecting tube 3, the upper end of the needle head 2 in the needle seat 4 will pass through the rubber plug 9, and then the lower end of the needle head 2 can be inserted into the rhizome of the plant to inject the bacterial liquid into the rhizome of the plant. This can prevent the mycelium from entering the needle head 2 and blocking the needle head 2, thereby effectively ensuring the normal use of the inoculation needle. Since the texture of the rubber material is relatively soft, when the researchers disassemble the needle head 2 and the needle seat 4, the rubber plug 9 can be in a sealed state, which can effectively prevent the bacterial liquid from entering the interior of the needle tube 1 through the rubber plug 9 when the inoculation needle absorbs the bacterial liquid, thereby making the filter membrane 20 have a better filtering effect on the mycelium.

[0025] like Figure 2 、 Figure 3 and Figure 4As shown, the anti-loosening component includes a threaded ring 10 fixedly connected to the lower end of the needle tube 1, and a convex strip 16 is fixedly connected to the outer wall of the needle seat 4. The inner wall of the threaded ring 10 is provided with a vertical groove 17 matching the convex strip 16. After aligning the convex strip 16 with the vertical groove 17, the needle seat 4 is inserted into the connecting tube 3, which can better position and guide the needle seat 4. This not only makes the installation of the needle 2 more convenient, but also makes the needle 2 more stable after installation. The outer wall of the threaded ring 10 is provided with a threaded sleeve 11, and the threaded sleeve 11 is threadedly connected to the threaded ring 10. The threaded sleeve 11 can be moved up and down by rotating it. The outer wall of the threaded sleeve 11 is provided with a rubber sleeve 18, which can make people more comfortable when holding the threaded sleeve 11. The outer wall of the rubber sleeve 18 is provided with anti-slip grooves, which can increase the friction between people's hands and the threaded sleeve 11, thereby effectively preventing To prevent people from slipping when rotating the threaded sleeve 11, the lower end of the threaded ring 10 is fixedly connected to a symmetrical elastic plate 12, and the lower end of one side of the elastic plate 12 is fixedly connected to a wedge block 13. The corner at the bottom of the inner wall of the threaded sleeve 11 is chamfered, and the other end is fixedly connected to a limiting block 14. The outer wall of the needle seat 4 is provided with a limiting groove 15 that matches the limiting block 14. After the needle seat 4 is inserted into the connecting tube 3, the wall surface of the needle seat 4 is located between the connecting tube 3 and the elastic plate 12. The threaded sleeve 11 is rotated to move it downward. When the bottom of the inner wall of the threaded sleeve 11 is against the inclined surface of the wedge block 13 at the lower end of the elastic plate 12, continuing to rotate the threaded sleeve 11 to move it downward can make the elastic plate 12 bend. When the limiting block 14 at the lower end of the elastic plate 12 is inserted into the limiting groove 15 on the needle seat 4, the needle seat 4 can be better reinforced, thereby effectively preventing the needle 2 from loosening.

[0026] From the above, it can be seen that the specific implementation of the present utility model is as follows:

[0027] When using the bacterial liquid inoculation needle, the needle head 2 is first removed. Since the rubber material is relatively soft, when the researchers remove the needle head 2 and the needle seat 4, the rubber stopper 9 can be in a sealed state. Then the connecting tube 3 at the lower end of the needle tube 1 is inserted into the interior of the bacterial liquid culture dish and the bacterial liquid is sucked into the needle tube 1. During the process of sucking the bacterial liquid, the inside of the needle tube 1 will be in a negative pressure state, causing the annular block 8 to move upward and squeeze the spring 7 to be in a compressed state. The outer diameter of the annular block 8 is smaller than the diameter of the inner wall of the needle tube 1, and the inner diameter is larger than the diameter of the outer wall of the connecting tube 3. Therefore, the bacterial liquid passes through the edge of the annular block 8 and then is filtered through the filter membrane 20 before entering the interior of the needle tube 1, while the mycelium inside the bacterial liquid stays below the filter membrane 20. When the bacterial liquid is stopped, the annular block 8 will move downward under the action of the spring 7. And it fits with the bottom of the inner wall of the needle tube 1, then align the convex strip 16 with the vertical groove 17, and then insert the needle seat 4 into the connecting tube 3. The upper end of the needle seat 4 will penetrate the rubber stopper 9 and enter the interior of the needle tube 1. At this time, rotate the threaded sleeve 11 to move it downward. When the bottom of the inner wall of the threaded sleeve 11 is against the inclined surface of the wedge block 13 at the lower end of the elastic plate 12, continue to rotate the threaded sleeve 11 to move it downward to bend the elastic plate 12. When the limit block 14 at the lower end of the elastic plate 12 is inserted into the limit groove 15 on the needle seat 4, the needle seat 4 can be better reinforced, thereby effectively preventing the needle 2 from loosening. Finally, insert the lower end of the needle 2 into the rhizome of the plant to inject the bacterial solution into the rhizome of the plant. This can prevent the mycelium from entering the needle 2 and blocking the needle 2, thereby effectively ensuring the normal use of the inoculation needle.

[0028] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A bacterial liquid inoculation needle with a filtering function, comprising a needle tube and a needle head inserted into the interior of the needle tube, wherein the lower end of the needle tube is fixedly connected to a connecting tube, and the connecting tube is connected to the interior of the needle tube, characterized in that: The outer wall of the needle is fixedly connected to a needle seat that matches the connecting tube. The interior of the needle tube is provided with a filter component to prevent the needle from being blocked. The lower end of the needle tube is fixedly connected to an anti-loosening component for preventing the needle seat from loosening.

2. The bacterial liquid inoculation needle with filtering function according to claim 1, characterized in that: The filter assembly includes a fixed seat arranged inside the needle tube, and the outer wall of the fixed seat is fixedly connected to multiple connecting rods, the other end of the connecting rod is fixedly connected to the inner wall of the needle tube, the bottom of the fixed seat is fixedly connected to a spring, the lower end of the spring is fixedly connected to an annular block, the inner wall of the annular block is fixedly connected to a rubber plug, and the upper end of the needle can pass through the rubber plug to communicate with the inside of the needle tube; the lower end of the outer wall of the annular block is fixedly connected to a filter membrane, the side of the filter membrane away from the annular block is set against the inner wall of the needle tube, and the filter membrane is slidably connected to the inner wall of the needle tube.

3. The bacterial liquid inoculation needle with filtering function according to claim 2, characterized in that: The anti-loosening component includes a threaded ring fixedly connected to the lower end of the needle tube, a threaded sleeve is provided on the outer wall of the threaded ring, and the threaded sleeve is threadedly connected to the threaded ring, and a symmetrical elastic plate is fixedly connected to the lower end of the threaded ring, a wedge block is fixedly connected to the lower end of one side of the elastic plate, and a limiting block is fixedly connected to the other end, and a limiting groove matching the limiting block is provided on the outer wall of the needle seat, and the wall surface of the needle seat is located between the connecting tube and the elastic plate.

4. The bacterial liquid inoculation needle with filtering function according to claim 3, characterized in that: The outer wall of the needle seat is fixedly connected with a convex strip, and the inner wall of the threaded ring is provided with a vertical groove matching the convex strip.

5. The bacterial liquid inoculation needle with filtering function according to claim 4, characterized in that: The corners at the bottom of the inner wall of the threaded sleeve are chamfered.

6. The bacterial liquid inoculation needle with filtering function according to claim 5, characterized in that: The outer wall of the threaded sleeve is provided with a rubber sleeve, and the outer wall of the rubber sleeve is provided with anti-slip grooves.

7. The bacterial liquid inoculation needle with filtering function according to claim 6, characterized in that: The needle tube is transparent.

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