Tobacco leaf puncturing device special for tobacco inoculation test

Abstract

The invention discloses a tobacco leaf puncturing device special for a tobacco inoculation test, which comprises an upper disc body and a lower disc body, the top of the upper disc body is provided with an assembling groove, a needling protection piece is fixedly embedded in the assembling groove, a puncturing needle body is arranged in the needling protection piece in a penetrating manner, and the puncturing needle body is provided with a needle hole. The surfaces of the multiple pricking needle bodies are jointly connected with a pressing installation unit, and under the action of the pressing installation unit, the pricking needle bodies can be located in the pricking protection piece to be in a relatively fixed state. According to the tobacco leaf puncturing device special for the tobacco inoculation test, the puncturing protection piece (comprising the fixed barrel and the protection barrel) and the spring work cooperatively, so that the puncturing needle can completely retract into the protection barrel in the non-use state, and operators are prevented from being accidentally injured or other objects are prevented from being accidentally scratched.

Description

Technical Field

[0001] This invention relates to the field of tobacco inoculation technology, and in particular to a tobacco leaf puncture device specifically for tobacco inoculation experiments. Background Technology

[0002] In tobacco breeding research, artificial inoculation with diseases is often used to understand the resistance of breeding materials to viral diseases. The conventional inoculation method involves repeatedly and gently rubbing a small amount of carborundum (600 mesh) or diatomaceous earth onto the inoculated leaves, ensuring only micro-wounds are created in the leaf epidermal cells without killing them. Then, virus sap is applied to the leaves to achieve inoculation. This conventional inoculation method requires highly skilled operators. Furthermore, to ensure a high success rate, repeated gentle rubbing is necessary, inevitably increasing the operator's workload and leading to low inoculation efficiency.

[0003] For example, Chinese Patent CN 207219489 U discloses a tobacco leaf piercing device specifically for tobacco inoculation experiments, which includes tweezers and a baffle disposed below the tweezers. The tweezers and the baffle are connected by a bent handle, and multiple piercing needles are evenly distributed at the bottom of the tweezers. This tobacco leaf piercing device for tobacco inoculation experiments improves the efficiency of tobacco virus inoculation and reduces the labor intensity of experimental operators.

[0004] The aforementioned needles are in a fixed state, making it impossible to protect the tip of the needle when not in use. This poses a risk of injury to personnel when not in use, affecting safe application. Furthermore, the fixed needles cannot be disassembled, making cleaning and replacement inconvenient. The exposed needles can also easily scratch other areas of the tobacco leaf during puncture, affecting its stable growth. Therefore, a tobacco leaf puncture device specifically designed for tobacco inoculation experiments is proposed. Summary of the Invention

[0005] Based on this, it is necessary to provide a tobacco leaf puncture device specifically for tobacco inoculation experiments to address the above-mentioned technical problems. The needle protection component (including a fixed cylinder and a protective cylinder) works in conjunction with the spring to allow the needle to be completely retracted into the protective cylinder when not in use, thus avoiding accidental injury to operators or damage to other items.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A tobacco leaf puncture device for tobacco inoculation testing includes an upper plate and a lower plate. The top of the upper plate has an assembly groove, in which a needle protection component is embedded and fixed. A needle body is inserted inside the needle protection component. The surfaces of multiple needle bodies are connected to a pressing and mounting unit. The pressing and mounting unit can make the needle body relatively fixed inside the needle protection component. The bottom of the multiple needle protection components is equipped with a synchronous drive unit. The outer side of the lower plate has a drive block adapted to the synchronous drive unit. Under the action of the drive block, the synchronous drive unit can cause the needle protection component to move upward and expose the needle body.

[0007] Furthermore, the needle-piercing protective component includes a fixed cylinder fixed inside the assembly groove and a protective cylinder slidably disposed inside the fixed cylinder; The bottom end of the fixed cylinder extends to the bottom of the lower plate and is used to accommodate and protect the bottom end of the needle body.

[0008] Furthermore, one end of the protective cylinder extends to the top of the fixed cylinder and is connected to a connecting ring. The fixed cylinder located above the upper plate is fitted with a spring. The two ends of the spring are respectively fixedly connected to the corresponding connecting ring and the upper plate. Under the action of the spring, the needle body can be housed inside the protective cylinder.

[0009] Furthermore, the clamping installation unit includes a housing fixed at the center of the top of the upper plate and an end cap threadedly fitted to the top of the housing. An adjusting screw is threadedly connected inside the end cap, and one end of the adjusting screw extends into the housing and is movably connected to its bottom wall.

[0010] Furthermore, a strip-shaped groove communicating with the interior is provided on the outer side of the housing, and a sliding ring is slidably provided in the strip-shaped groove. The sliding ring extends through the strip-shaped groove into the interior of the housing and is connected to an engagement part. The adjusting screw is threadedly assembled with the engagement part. The sliding ring is fixed with a connecting plate on its outer side. There are multiple connecting plates, and each of the multiple connecting plates is arranged in a one-to-one correspondence with the needle protection component.

[0011] Furthermore, the outer ends of the multiple connecting plates are connected to a mounting ring, the surface of which has a mounting hole, and the top end of the needle body is inserted into the mounting hole and fastened with a nut.

[0012] Furthermore, the synchronous drive unit includes a synchronous connecting ring, which is fixedly connected to the bottom of the fixed cylinder. An arc-shaped guide plate is also fixed to the outer side of the synchronous connecting ring. There are multiple arc-shaped guide plates, which are evenly distributed along the circumference of the synchronous connecting ring.

[0013] Furthermore, the synchronous drive unit also includes a side transmission rod, the end of which has a drive terminal, which is correspondingly disposed with the drive block below.

[0014] Furthermore, a handle extends from one side of both the upper and lower disc bodies, and the ends of the two handles are connected to an arc-shaped connecting part. An elastic support spring is connected between the upper and lower handles, and the two handles can be supported and unfolded by the action of the elastic support spring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The tobacco leaf puncture device for tobacco inoculation testing provided by this invention has a needle protection component (including a fixing cylinder and a protective cylinder) that works in conjunction with a spring, so that the needle can be completely retracted into the protective cylinder when not in use, thus avoiding accidental injury to operators or damage to other items.

[0016] Through the cooperation of the drive block of the lower plate and the synchronous drive unit (such as the arc-shaped guide plate and the side transmission rod), the protective cylinder is only pushed up during the pressing operation, so that the needle is precisely exposed to the required length. This "exposed on demand" design fundamentally eliminates the risk of the needle tip being permanently stationary.

[0017] The mounting ring and mounting hole design in the clamping mounting unit, along with the tightening nut, allows the needle body to be disassembled independently. This not only facilitates the replacement of needles of different specifications to meet different test requirements (such as adjusting the insertion depth or density), but also makes it easier to thoroughly clean or disinfect the needles after use, preventing cross-contamination between different batches of tests.

[0018] By rotating the adjusting screw, the meshing part can be driven to move the sliding ring and all connecting plates synchronously, thereby achieving uniform height adjustment of all needles, ensuring the consistency of puncture depth each time, and improving the standardization level of the test. Attached Figure Description

[0019] Figure 1 A schematic diagram of the tobacco leaf puncture device for tobacco inoculation testing provided by the present invention; Figure 2 A side view of the tobacco leaf puncture device for tobacco inoculation testing provided by the present invention; Figure 3 A schematic diagram of the upper plate structure of the tobacco leaf puncture device for tobacco inoculation testing provided by the present invention; Figure 4 A cross-sectional structural schematic diagram of the tobacco leaf puncture device for tobacco inoculation testing provided by the present invention; Figure 5A schematic diagram of the needle-punching protective component of the tobacco leaf puncture device for tobacco inoculation testing provided by the present invention; Figure 6 The tobacco leaf puncture device for tobacco inoculation testing provided by the present invention Figure 5 Enlarged structural diagram at point A in the middle.

[0020] The markings in the diagram are explained as follows: 1. Upper plate body; 11. Assembly groove; 12. Needle body; 13. Handle part; 14. Arc-shaped connecting part; 15. Elastic support spring; 2. Lower plate body; 21. Drive block; 3. Needle-piercing protective component; 31. Fixing cylinder; 32. Protective cylinder; 33. Connecting ring; 34. Spring; 4. Pressing and mounting unit; 41. Housing; 42. End cover; 43. Adjusting screw; 44. Slotted groove; 45. Sliding ring; 46. Engaging part; 47. Connecting plate; 48. Mounting ring; 49. Mounting hole; 5. Synchronous drive unit; 51. Synchronous connecting ring; 52. Arc-shaped guide plate; 53. Side transmission rod; 54. Drive terminal. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0022] Example 1 Please refer to Figures 1-6 As shown, a tobacco leaf puncture device for tobacco inoculation testing includes an upper plate 1 and a lower plate 2. The top of the upper plate 1 is provided with an assembly groove 11, and a needle protection component 3 is embedded and fixed in the assembly groove 11. A needle body 12 is inserted inside the needle protection component 3. The surfaces of multiple needle bodies 12 are connected to a pressing and mounting unit 4. Under the action of the pressing and mounting unit 4, the needle body 12 can be relatively fixed inside the needle protection component 3. The bottom of the multiple needle protection components 3 is equipped with a synchronous drive unit 5. The outer side of the lower plate body 2 has a drive block 21 that is adapted to the synchronous drive unit 5. Under the action of the drive block 21, the synchronous drive unit 5 can cause the needle protection component 3 to move upward and expose the needle body 12.

[0023] In this embodiment, the needle protection component 3 can protect the needle body 12 in its natural state. When it is needed for application, simply press the handle part 133 to bring the upper plate 1 and the lower plate 2 closer to each other. The needle body 12 can then be exposed for application through the cooperation of the clamping installation unit 4, thus providing effective protection when no application is required.

[0024] Example 2 The tobacco leaf puncture device for tobacco inoculation experiments provided in Example 1 has been further optimized, specifically, as follows: Figure 4 As shown, the needle protection component 3 includes a fixed cylinder 31 fixed inside the assembly groove 11 and a protective cylinder 32 slidably disposed inside the fixed cylinder 31. The protective cylinder 32 can slide along the height direction of the fixed cylinder 31. The bottom end of the fixed cylinder 31 extends to the bottom of the lower plate 2 and is used to accommodate and protect the bottom end of the needle body 12.

[0025] One end of the protective cylinder 32 extends to the top of the fixed cylinder 31 and is connected to a connecting ring 33. The fixed cylinder 31 located above the upper plate 1 is fitted with a spring 34. The two ends of the spring 34 are fixedly connected to the corresponding connecting ring 33 and the upper plate 1, respectively. Under the action of the spring 34, the needle body 12 can be housed inside the protective cylinder 32.

[0026] like Figure 5 As shown, under the action of spring 34 in its natural state, the bottom end of the needle body 12 is stored inside the protective cylinder 32. This prevents the needle body 12 from being directly exposed and causing injury to personnel during storage, transportation and handling. At the same time, it can protect the end of the needle body 12 and prevent the sharpness of the end from being exposed, thus meeting the puncture requirements in actual tobacco inoculation tests.

[0027] Example 3 The tobacco leaf puncture device for tobacco inoculation experiments provided in Example 1 or 2 has been further optimized, such as... Figures 1-6 As shown, the clamping installation unit 4 includes a housing 41 fixed at the center of the top of the upper plate 1 and an end cap 42 threadedly fitted to the top of the housing 41. An adjusting screw 43 is threadedly connected inside the end cap 42, and one end of the adjusting screw 43 extends into the housing 41 and is movably connected to its bottom wall.

[0028] After the rotating end cap 42 is removed, the adjusting screw 43 can be taken out from the housing 41. This allows for the disassembly of the upper part of the clamping and mounting unit 4, and the simultaneous removal of the needle body 12, facilitating subsequent replacement, cleaning, or maintenance.

[0029] The outer side of the housing 41 is provided with a strip groove 44 that communicates with the interior. A sliding ring 45 is slidably provided in the strip groove 44. The sliding ring 45 extends through the strip groove 44 into the interior of the housing 41 and is connected to an engagement part 46. The adjusting screw 43 is threadedly assembled with the engagement part 46. The engagement part 46 can only slide along the height direction of the housing 41. Rotating the adjusting screw 43 can make it form a threaded engagement with the engagement part 46. The engagement part 46, driven by the action, will slide up and down in the housing 41. In this way, the height of the multiple needles 12 connected to it can be adjusted to adapt the exposed length according to the needs of different tobacco inoculation tests, while also meeting the functional requirements of disassembly. The sliding ring 45 is fixed with a connecting plate 47 on its outer side. There are multiple connecting plates 47, and each of the multiple connecting plates 47 is arranged in a one-to-one correspondence with the needle protection component 3.

[0030] The outer ends of the multiple connecting plates 47 are connected to a mounting ring 48. The surface of the mounting ring 48 is provided with a mounting hole 49. The top end of the needle body 12 is inserted into the mounting hole 49 and fastened by a nut.

[0031] like Figure 6 As shown, nuts are provided above and below the mounting ring 48 connected to the needle body 12. Rotating the nuts up and down will press the needle body 12 onto the mounting ring 48 to achieve the positioning effect.

[0032] Example 4 The tobacco leaf puncture device for tobacco inoculation experiments provided in Example 3 has been further optimized, such as... Figure 1 The synchronous drive unit 5 shown includes a synchronous connecting ring 51, which is fixedly connected to the bottom of the fixed cylinder 31. An arc-shaped guide plate 52 is also fixed on the outer side of the synchronous connecting ring 51. There are multiple arc-shaped guide plates 52, which are evenly distributed along the circumference of the synchronous connecting ring 51.

[0033] The synchronous drive unit 5 also includes a side transmission rod 53, the end of which has a drive terminal 54, which is correspondingly disposed with the drive block 21 below.

[0034] like Figure 3 As shown, an arc-shaped guide plate 52 is set below the upper plate 1. With this structure, when the tobacco leaf to be tested is placed between the upper plate 1 and the lower plate 2, the arc-shaped guide plate 52 can guide the tobacco leaf, so that it will not hinder the movement and better meet the piercing requirements of the placement.

[0035] like Figure 2As shown, when the two grips 13 are pressed, the upper plate 1 and the lower plate 2, which are subjected to pressure, will move closer to each other. At this time, the side transmission rod 53 on the upper plate 1 will come into contact with the driving block 21 below. The side transmission rod 53, which is subjected to contact, will cause multiple protective cylinders 32 to slide upward through the action of the synchronous connecting ring 51. The protective cylinders 32 in the upward state will gradually expose the needle body 12 inside. After the needle body 12 is exposed, it can be further pressed with the grip 133 to puncture the tobacco leaf test area, thus creating a mechanical wound on the leaf. Then, the virus juice is applied to the leaf to achieve the purpose of infection and inoculation. The relevant inoculation information can be recorded on the label.

[0036] Example 5 The tobacco leaf puncture device for tobacco inoculation experiments provided in Example 4 has been further optimized, such as... Figure 1 As shown, a handle portion 13 extends from one side of both the upper plate 1 and the lower plate 2. The ends of the two handle portions 13 are connected to an arc-shaped connecting portion 14. An elastic support spring 15 is connected between the upper and lower handle portions 13. The two handle portions 13 can be supported and unfolded by the action of the elastic support spring 15.

[0037] With the help of the elastic support spring 15, the upper and lower handle parts 13 can be unfolded in a way that keeps them away from each other in the natural state. This makes it easy to place the tobacco leaves between the upper plate 1 and the lower plate 2 during use. After pressing the handle part 13 to bring the upper plate 1 and the lower plate 2 closer together, the upper plate 1 and the lower plate 2 can be unfolded and reset by the action of the elastic support spring 15, which is convenient for further testing and application.

[0038] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A tobacco leaf puncture device specifically for tobacco inoculation testing, characterized in that, It includes an upper plate (1) and a lower plate (2). The top of the upper plate (1) is provided with an assembly groove (11). A needle protection component (3) is embedded and fixed in the assembly groove (11). A needle body (12) is inserted inside the needle protection component (3). The surfaces of multiple needle bodies (12) are connected to a pressing and mounting unit (4). The pressing and mounting unit (4) can make the needle body (12) relatively fixed inside the needle protection component (3). The bottom of the multiple needle protection components (3) is equipped with a synchronous drive unit (5). The outer side of the lower plate (2) has a drive block (21) that is compatible with the synchronous drive unit (5). The synchronous drive unit (5) can cause the needle protection component (3) to move upward under the action of the drive block (21) so that the needle body (12) is exposed.

2. The tobacco leaf puncture device for tobacco inoculation testing according to claim 1, characterized in that, The needle protection component (3) includes a fixed cylinder (31) fixed inside the assembly groove (11) and a protective cylinder (32) slidably disposed inside the fixed cylinder (31). The bottom end of the fixed cylinder (31) extends to the bottom of the lower plate (2) and is used to accommodate and protect the bottom end of the needle body (12).

3. The tobacco leaf puncture device for tobacco inoculation testing according to claim 2, characterized in that, One end of the protective cylinder (32) extends to the top of the fixed cylinder (31) and is connected to a connecting ring (33). The fixed cylinder (31) located above the upper plate (1) is fitted with a spring (34). The two ends of the spring (34) are fixedly connected to the corresponding connecting ring (33) and the upper plate (1) respectively. Under the action of the spring (34), the needle body (12) can be housed inside the protective cylinder (32).

4. The tobacco leaf puncture device for tobacco inoculation testing according to claim 3, characterized in that, The clamping installation unit (4) includes a housing (41) fixed at the top center of the upper plate (1) and an end cap (42) threaded onto the top of the housing (41). An adjusting screw (43) is threaded into the end cap (42), and one end of the adjusting screw (43) extends into the housing (41) and is movably connected to its bottom wall.

5. The tobacco leaf puncture device for tobacco inoculation testing according to claim 4, characterized in that, The outer side of the housing (41) is provided with a strip groove (44) that communicates with the interior. A sliding ring (45) is slidably provided in the strip groove (44). The sliding ring (45) extends through the strip groove (44) into the interior of the housing (41) and is connected to a meshing part (46). The adjusting screw (43) is threadedly assembled with the meshing part (46). Among them, a connecting plate (47) is fixed on the outer side of the sliding ring (45), and there are multiple connecting plates (47), and the multiple connecting plates (47) are arranged one-to-one with the needle protection component (3).

6. The tobacco leaf puncture device for tobacco inoculation testing according to claim 5, characterized in that, The outer ends of the multiple connecting plates (47) are connected to a mounting ring (48). The surface of the mounting ring (48) is provided with a mounting hole (49). The top end of the needle body (12) is inserted into the mounting hole (49) and fastened by a nut.

7. The tobacco leaf puncture device for tobacco inoculation testing according to claim 2, characterized in that, The synchronous drive unit (5) includes a synchronous connecting ring (51), which is fixedly connected to the bottom of the fixed cylinder (31). An arc-shaped guide plate (52) is also fixed on the outside of the synchronous connecting ring (51). There are multiple arc-shaped guide plates (52), and the multiple arc-shaped guide plates (52) are evenly distributed along the circumferential direction of the synchronous connecting ring (51).

8. The tobacco leaf puncture device for tobacco inoculation testing according to claim 7, characterized in that, The synchronous drive unit (5) also includes a side transmission rod (53), the end of which has a drive terminal (54), and the drive terminal (54) is correspondingly arranged with the drive block (21) below.

9. The tobacco leaf puncture device for tobacco inoculation testing according to claim 1, characterized in that, Both the upper plate (1) and the lower plate (2) have a handle (13) extending from one side. The ends of the two handles (13) are connected to an arc-shaped connecting part (14). An elastic support spring (15) is connected between the upper and lower handles (13). The two handles (13) can be supported and unfolded by the action of the elastic support spring (15).

Images