Konjac plant injection device

By using the solid needle tip, one-way valve, and side injection hole of the konjac plant injection device, combined with the positioning clamp and V-groove, the problems of clogging and accuracy of the konjac plant injector are solved, achieving stable injection and precise control.

CN224386286UActive Publication Date: 2026-06-23KUNMING UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNMING UNIVERSITY
Filing Date
2025-07-25
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The konjac plant tissue has a high degree of viscosity, which makes it easy for syringe needles to become clogged, making it difficult to accurately control the injection volume. In addition, traditional needles are difficult to penetrate the stem stably.

Method used

An injection device for konjac plants was designed, which uses a solid needle tip, a one-way valve and a side injection hole, combined with a positioning clamp and a V-groove to ensure that the needle does not get clogged and the liquid does not flow back, and the positioning clamp stably holds the stem.

Benefits of technology

It improves the precision of injection volume control, prevents stem slippage or rotation, and ensures the stability and efficiency of the injection process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an injection device for konjac plants, belonging to the technical field of micro-injection devices for konjac plants. One end of the injection needle body is slidably connected to a push rod, and the other end of the injection needle body is fixedly installed with a needle and a squeezing plate. One end of the needle is fixedly connected to a connecting end, and the needle is equipped with an anti-clogging and backflow structure. The surface of the squeezing plate has a fixing hole and a sliding hole. The inner wall of the sliding hole is slidably connected to a spring structure, and one end of the spring structure is fixedly connected to a positioning clip. This konjac plant injection device, through the solid needle tip, one-way valve, and side injection hole of the needle, can not only avoid the needle being blocked by plant tissue when inserted, but also avoid backflow of the medicine, thus improving the accuracy of injection volume control. Furthermore, through the positioning clip and the V-shaped groove of the positioning clip, the injection device can stably hold the konjac stem during use, preventing it from sliding or rotating during injection.
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Description

Technical Field

[0001] This utility model relates to the technical field of micro-injection devices for konjac plants, and more specifically, to an injection device for konjac plants. Background Technology

[0002] The konjac plant is a perennial herbaceous plant belonging to the genus Amorphophallus in the family Araceae, and it has unique morphological characteristics and ecological adaptability.

[0003] Currently, when injecting inoculum suspensions into konjac plants using syringes, the high viscosity of konjac tissue makes it difficult to accurately control the injection volume as the needle of a conventional syringe is easily blocked by the plant tissue. Furthermore, the smooth, hollow surface of the konjac stem makes it easy for traditional needles to slip and difficult to insert stably. Therefore, we have designed a konjac plant injection device to solve these problems. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a konjac plant injection device. This konjac plant injection device, through the solid needle tip, one-way valve, and side injection hole, not only avoids the needle being blocked by plant tissue during insertion, but also prevents backflow of the medicine, thus improving the accuracy of injection volume control. Furthermore, through the positioning clamp and the V-shaped groove of the positioning clamp, the injection device can stably hold the konjac stem during use, preventing it from sliding or rotating during injection.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A konjac plant injection device includes an injection needle body. One end of the injection needle body is slidably connected to a push rod, and the other end of the injection needle body is fixedly installed with a needle tip and a squeezing plate. One end of the needle tip is fixedly connected to a connecting end and is provided with an anti-clogging and backflow structure. The surface of the squeezing plate has a fixing hole and a sliding hole. The inner wall of the sliding hole is slidably connected to a spring structure. One end of the spring structure is fixedly connected to a positioning clamp, and one end of the positioning clamp is provided with a V-groove. This konjac plant injection device, through the solid needle tip, one-way valve, and side injection hole of the needle tip, not only avoids the needle tip being blocked by plant tissue during insertion but also avoids backflow of the medicine, improving the accuracy of injection volume control. Furthermore, through the positioning clamp and the V-groove of the positioning clamp, the injection device can stably hold the konjac stem during use, preventing it from sliding or rotating during injection.

[0007] Furthermore, the anti-clogging backflow structure includes a one-way valve, which is fixedly installed on one end surface of the needle. The other end of the needle is fixedly connected to a needle tip. An injection hole is opened on the side of the needle. The needle tip is solid so that it will not cause blockage of the injection hole when inserted into the konjac plant. Moreover, the one-way valve can prevent the medicine from flowing back.

[0008] Furthermore, the end face of the positioning clamp has an installation hole, and a support tube is fixedly sleeved on the inner wall of the installation hole. One end of the support tube is threadedly connected to a limit tube, and an anti-slip sleeve is fixedly sleeved on the surface of the limit tube. The limit tube can adjust the telescopic height and the insertion depth of the needle.

[0009] Furthermore, the springback structure includes a guide post, the surface of which is slidably connected to the inner wall of the sliding hole. One end of the guide post is threaded with a limit cap, and a spring is movably connected to the outer side of the guide post. When the spring is squeezed by the extrusion plate, it has a compressive force, which facilitates the automatic restoration of the position between the needle and the positioning clamp through the elastic force.

[0010] Furthermore, a moisture-absorbing block is fixedly connected to the inner wall of the V-shaped groove. The moisture-absorbing block has a through hole in the middle. The moisture-absorbing block is made of medical sponge and can absorb the trace amount of exudate from the insertion site of the konjac plant.

[0011] Furthermore, a connecting block is fixedly connected to one end of the guide post, and the surface of the connecting block is fixedly connected to the surface of the positioning clamp. The connecting block and the guide post can ensure the sliding stability between the needle and the positioning clamp.

[0012] Furthermore, the inner wall of the V-shaped groove is fixedly connected with an anti-slip rubber pad to prevent damage to the surface of the konjac plant.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) This scheme, through the solid needle tip, one-way valve and side injection hole of the needle, can not only avoid the needle being blocked by plant tissue when inserted, but also avoid the backflow of drug solution, thus improving the accuracy of injection volume control.

[0015] (2) This solution uses a positioning clamp and a V-groove to ensure that the injection device can stably hold the konjac stem during use, preventing it from sliding or rotating during the injection process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the needle structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the positioning clamp and guide post installation structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the extrusion plate structure of this utility model;

[0020] Figure 5 for Figure 3 A cross-sectional view of the positioning clip and moisture-absorbing block structure.

[0021] Explanation of the labels in the diagram:

[0022] 1. Injection needle body; 2. Needle; 21. Connecting end; 22. One-way valve; 23. Needle tip; 24. Injection hole; 3. Positioning clamp; 31. V-groove; 32. Mounting hole; 33. Moisture-absorbing block; 34. Through hole; 4. Guide post; 41. Connecting block; 42. Spring; 43. Limiting cap; 5. Extrusion plate; 51. Fixing hole; 52. Sliding hole; 6. Support tube; 61. Limiting tube; 62. Anti-slip sleeve. Detailed Implementation

[0023] 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 protection scope of the present utility model.

[0024] Example 1

[0025] Please see Figure 1-5A konjac plant injection device includes an injection needle body 1. A push rod is slidably connected to one end of the injection needle body 1. A piston is provided at one end of the push rod, and a push plate is provided at the other end. A needle head 2 and a squeezing plate 5 are fixedly installed at the other end of the injection needle body 1. A connecting end 21 is fixedly connected to one end of the needle head 2, which is used to connect to one end of the needle tube. The needle head 2 is provided with an anti-clogging backflow structure, which includes a one-way valve 22. The one-way valve 22 can be a duckbill valve or an umbrella valve. The one-way valve 22 is fixedly installed on the surface of one end of the needle head 2. A needle tip 23 is fixedly connected to the other end of the needle head 2. An injection hole 24 is opened on the side of the needle head 2. The needle tip 23 is solid and is inserted into the konjac plant. It will not cause blockage of injection hole 24, and the one-way valve 22 can prevent backflow of medicine. The surface of the extrusion plate 5 has a fixing hole 51 and a sliding hole 52. The inner wall of the sliding hole 52 is slidably connected to a spring structure. The spring structure includes a guide post 4. The surface of the guide post 4 is slidably connected to the inner wall of the sliding hole 52. One end of the guide post 4 is threadedly connected to a limit cap 43. The outer side of the guide post 4 is movably connected to a spring 42. When the spring 42 is squeezed by the extrusion plate 5, it has the function of compression elasticity, which makes it easy to automatically restore the position between the needle 2 and the positioning clamp 3 through the elasticity. One end of the spring structure is fixedly connected to the positioning clamp 3. One end of the positioning clamp 3 is provided with a V-groove 31. The V-groove 31 can clamp konjac stems of different diameters.

[0026] The end face of the positioning clip 3 has a mounting hole 32. A support tube 6 is fixedly sleeved on the inner wall of the mounting hole 32. One end of the support tube 6 is threadedly connected to a limiting tube 61. An anti-slip sleeve 62 is fixedly sleeved on the surface of the limiting tube 61. The limiting tube 61 can adjust the telescopic height and the insertion depth of the needle 2. A moisture-absorbing block 33 is fixedly connected to the inner wall of the V-groove 31. A through hole 34 is provided in the middle of the moisture-absorbing block 33. The moisture-absorbing block 33 is made of medical sponge. The moisture-absorbing block 33 can absorb the trace exudate from the insertion site of the konjac plant.

[0027] One end of the guide post 4 is fixedly connected to a connecting block 41. The surface of the connecting block 41 is fixedly connected to the surface of the positioning clamp 3. The connecting block 41 and the guide post 4 can ensure the sliding stability between the needle 2 and the positioning clamp 3. The inner wall of the V-groove 31 is fixedly connected to an anti-slip pad to avoid damaging the surface of the konjac plant.

[0028] When using this konjac plant injection device, first place one end of the positioning clamp 3 close to the injection site on the konjac stem, so that the V-groove 31 clamps the konjac stem. Then, push the needle 2 into the konjac stem. At this time, the limiting tube 61 can limit the insertion depth of the needle 2. Simultaneously, when the needle 2 is inserted into the konjac stem, it will drive the squeezing plate 5 to squeeze the spring 42, and the spring 42 will generate a compressive force. After the needle 2 is inserted into the correct position, push the injection rod to inject the medicine. During the injection process, the one-way valve 22 can prevent the medicine from flowing back. After the injection is completed, the needle is pulled out. 2. At this time, the spring 42 releases its elastic force, which causes the positioning clamp 3 to move downward, thereby completing a quick reset and waiting for the next injection action. The solid needle tip 23, one-way valve 22 and side injection hole 24 set in the needle 2 can not only prevent the needle 2 from being blocked by plant tissue when inserted, but also prevent the backflow of medicine, thus improving the accuracy of injection volume control. Furthermore, the positioning clamp 3 and the V-shaped groove 31 set in the positioning clamp 3 can stably hold the konjac stem during use, preventing it from sliding or rotating during the injection process.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A konjac plant injection device, comprising an injection needle body (1), wherein a push rod is slidably connected to one end of the injection needle body (1), characterized in that: The other end of the injection needle body (1) is fixedly installed with a needle (2) and a squeezing plate (5). One end of the needle (2) is fixedly connected to a connecting end (21). The needle (2) is provided with an anti-clogging backflow structure. The surface of the squeezing plate (5) is provided with a fixing hole (51) and a sliding hole (52). The inner wall of the sliding hole (52) is slidably connected with a spring structure. One end of the spring structure is fixedly connected to a positioning clip (3). One end of the positioning clip (3) is provided with a V-groove (31).

2. The konjac plant injection device according to claim 1, characterized in that: The anti-clogging backflow structure includes a one-way valve (22), which is fixedly installed on one end surface of the needle (2), and the other end of the needle (2) is fixedly connected to a needle tip (23). An injection hole (24) is opened on the side of the needle (2).

3. The konjac plant injection device according to claim 1, characterized in that: The positioning clamp (3) has an installation hole (32) on its end face. A support tube (6) is fixedly sleeved on the inner wall of the installation hole (32). One end of the support tube (6) is threadedly connected to a limit tube (61). An anti-slip sleeve (62) is fixedly sleeved on the surface of the limit tube (61).

4. The konjac plant injection device according to claim 1, characterized in that: The springback structure includes a guide post (4), the surface of which is slidably connected to the inner wall of the sliding hole (52), one end of which is threadedly connected to a limit cap (43), and a spring (42) is movably connected to the outer side of the guide post (4).

5. The konjac plant injection device according to claim 1, characterized in that: The inner wall of the V-shaped groove (31) is fixedly connected to a moisture-absorbing block (33), and a through hole (34) is provided in the middle of the moisture-absorbing block (33). The moisture-absorbing block (33) is made of medical sponge.

6. The konjac plant injection device according to claim 4, characterized in that: One end of the guide post (4) is fixedly connected to a connecting block (41), and the surface of the connecting block (41) is fixedly connected to the surface of the positioning clamp (3).

7. The konjac plant injection device according to claim 1, characterized in that: The inner wall of the V-groove (31) is fixedly connected with an anti-slip rubber pad.