Portable electrostatic spinning device
By introducing protective covers and adjustment components into portable electrospinning devices, the problem of spinning instability is solved, and a more stable nanofiber preparation is achieved in outdoor environments.
Patent Information
- Application Number
- CN202421609751.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-08
AI Technical Summary
When portable electrospinning equipment is used outdoors, the spinning distance is variable, and the spinning liquid jet is easily affected by the air flow, resulting in spinning instability.
A portable electrospinning device is designed, including a spinning body and an auxiliary spinning mechanism. The spinning body has a spinneret, and the auxiliary spinning mechanism includes an adjustment assembly and a protective cover. The protective cover has an inlet and an outlet, and the spinneret end of the spinneret extends into the protective cover from the inlet of the protective cover, and the adjustment assembly is used to adjust the distance between the spinneret end and the outlet of the protective cover.
Through the protection of the protective cover, the spinning liquid jet is reduced by the influence of air flow, the spinning stability is improved, and the device's applicability and spinning stability are improved by adjusting the components to adapt to the jet range of different spinning liquids.
Smart Images
Figure CN222744448U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of electrospinning, and in particular to a portable electrospinning device. Background Art
[0002] Electrospinning technology has shown great application potential in the fields of biological tissue engineering, medical materials, filtration protection, new energy, functional devices, etc. Traditional electrospinning equipment generally consists of four parts: high-voltage power supply, liquid supply system, spinning nozzle, and receiving device. However, traditional electrospinning equipment is large in size, inconvenient to move and transport, and cannot be flexibly used.
[0003] Portable electrospinning equipment can get rid of the dependence of electrospinning technology on indoor power supply by improving the integration of electrospinning equipment, realize the preparation of nanofiber film, and directly deposit the fiber film at a designated location to realize the in-situ preparation of nanofiber film. Usually, portable electrospinning equipment integrates or simplifies the three parts of high-voltage power supply, liquid supply system, and spinning nozzle to obtain a portable device with a smaller volume, and the receiving device is directly replaced by a designated part. The high-voltage power supply applies high voltage to the metal spinneret to form a high-voltage electrostatic field. The spinning liquid in the syringe overcomes the surface tension under the action of the electric field force and is ejected from the needle to form a spinning liquid jet. The spinning liquid jet is stretched, split, and the solution volatilizes in the electric field, and finally forms nanofibers deposited at the receiving position. Portable electrospinning devices can be flexibly used in outdoor environments.
[0004] However, when the current portable electrospinning equipment is used in outdoor environments, the spinning distance is variable, and the spinning liquid jet is easily affected by air flow, resulting in unstable spinning. Utility Model Content
[0005] Based on the above-mentioned deficiencies, the present application provides a portable electrospinning device to improve the problem of instability of portable electrospinning in the related art.
[0006] This application is implemented as follows:
[0007] The example of the present application provides a portable electrospinning device, including a spinning body and an auxiliary spinning mechanism. The spinning body has a spinneret; the auxiliary spinning mechanism includes an adjustment component and a protective cover. The protective cover has an inlet and an outlet, and the spinneret end of the spinneret extends into the protective cover from the inlet of the protective cover; the adjustment component is arranged at the inlet end of the protective cover, and is used to adjust the distance between the spinneret end and the outlet of the protective cover.
[0008] In the above implementation process, the spinneret of the spinneret is extended from the entrance of the protective cover into the protective cover, so that the spinning liquid jet ejected from the spinneret can be sprayed to the receiving position under the protection of the protective cover, reducing the influence of the spinning liquid jet on the air flow and improving the spinning stability. In addition, during the application process, the spinning distance is usually adjusted as needed. The portable electrospinning device provided in the example of the present application is provided with an adjustment component capable of adjusting the distance between the spinneret and the outlet of the protective cover. When the range of the jet of different spinning liquids changes, the distance between the spinneret and the outlet of the protective cover can be adjusted by the adjustment component, so that the spinning liquid jets of different ranges can always be sprayed to the receiving position under the protection of the protective cover, thereby improving the applicability and spinning stability of the portable electrospinning device.
[0009] In an optional embodiment, the adjustment component includes a fixed part and a movable part, the fixed part is connected to the spinning body; along the extension direction of the spinneret, the protective cover is slidably connected to the fixed part through the movable part, and can be selectively fixed at one position of the fixed part along the extension direction.
[0010] In the above implementation process, the fixed part is connected to the spinning body, and the protective cover is slidably connected to the fixed part through the moving part. The protective cover can be driven by the moving part to move away from the spinning body along the extension direction of the spinneret, thereby lengthening the distance between the outlet of the protective cover and the spinning end of the spinneret to meet the protection requirements of the spinning liquid jet with a longer range. When the range of the spinning liquid jet becomes shorter, in order to prevent the protective cover from affecting the injection of the spinning liquid jet to the receiving position, the protective cover can be driven by the moving part to move closer to the spinning body along the extension direction of the spinneret, thereby shortening the distance between the outlet of the protective cover and the spinning end of the spinneret.
[0011] In an optional embodiment, a first accommodating cavity is provided inside the fixed part, and a second accommodating cavity is provided inside the movable part; one end of the movable part extends into the first accommodating cavity and is slidably connected to the fixed part; the protective cover is connected to the other end of the movable part, and the second accommodating cavity is connected to the entrance of the protective cover, and the spinneret passes through the second accommodating cavity into the protective cover.
[0012] In the above implementation process, one end of the movable part is inserted into the first accommodating cavity of the fixed part and slidably connected with the fixed part, and the spinneret is inserted into the protective cover through the second accommodating cavity of the movable part, so that the spinneret can be protected in the accommodating cavity by the fixed part, the movable part and the protective cover, thereby preventing the operator from accidentally touching the spinneret and improving safety.
[0013] In an optional embodiment, the fixing member is cylindrical, and a slot group is provided on the inner wall of the fixing member, the slot group includes a plurality of first slots and second slots alternately arranged in sequence along the extension direction; along the circumference of the fixing member, the width of the first slot is smaller than the width of the second slot, and there is a smooth transition between the first slot and the second slot; two blocks are provided on the outer wall of the end of the movable member away from the protective cover, and a connecting rod is provided between the two blocks; the two blocks are respectively clamped in adjacent first slots and second slots, so that the two blocks can slide to the other adjacent first slot and second slot under the action of external force, and be fixed after the external force disappears.
[0014] In the above implementation process, a plurality of first card slots and second card slots are alternately arranged on the inner wall of the fixed part along the extension direction of the spinneret, the width of the first card slot is smaller than the width of the second card slot, and two card blocks cooperating with the first card slot and the second card slot are arranged on the outer wall of the movable part. The two card blocks cooperate with the first card slot and the second card slot, so that the movable part can be fixed at the position of one group of the first card slot and the second card slot of the fixed part, so that the two card blocks can slide into the first card slot and the second card slot at other positions under the action of external force, and be fixed at the position after the external force disappears, thereby adjusting the distance between the spinning end and the outlet of the protective cover.
[0015] In addition, the width of the card block is slightly smaller than the width of the first card slot, and the width of the first card slot is smaller than the width of the second card slot. The connection stability between the moving part and the fixed part can be improved by connecting the first card slot to one of the card blocks, and the convenience of movement of the moving part relative to the fixed part can be improved by connecting the second card slot to another card block.
[0016] In an optional embodiment, the difference between the width of the first card slot and the width of the card block is 0.3-0.5 mm, the difference between the width of the second card slot and the width of the first card slot is 0.5-1 mm, and the arc of the smooth transition between the first card slot and the second card slot is 40-60°.
[0017] In the above implementation process, the difference between the width of the first card slot and the width of the card block is 0.3~0.5mm, the difference between the width of the second card slot and the width of the first card slot is 0.5~1mm, and the arc of the smooth transition between the first card slot and the second card slot is 40~60°. Under the action of external force, the two card blocks can be easily moved to the first card slot and the second card slot at other positions, thereby improving the adjustment convenience of the protective cover.
[0018] In an optional embodiment, along the circumference of the fixing member, the inner wall of the fixing member is provided with a plurality of groups of slot groups at intervals, and the outer wall of the moving member is provided with a plurality of groups of one-to-one corresponding blocks.
[0019] In the above implementation process, multiple groups of first card slots and second card slots are arranged at intervals on the inner wall of the fixed part along the circumference of the first accommodating cavity, and multiple groups of corresponding card blocks are arranged on the outer wall of the movable part, which can improve the connection stability and movement convenience between the fixed part and the movable part.
[0020] In combination with the first aspect, in an optional implementation, the axis center of the inlet of the protective cover is coaxial with the axis center of the protective cover.
[0021] In the above implementation process, the axis of the inlet of the protective cover is coaxial with the axis of the protective cover, which enables the spinneret to pass through the middle of the protective cover from the inlet of the protective cover, reducing the probability of the spinneret end colliding with the inner wall of the protective cover.
[0022] In combination with the first aspect, in an optional implementation, the diameter of the inlet of the protective cover is 1.2-2.5 mm.
[0023] In the above implementation process, the diameter of the inlet of the protective cover is 1.2-2.5 mm, which can reduce the probability that the spinning liquid jet deviates from the receiving target due to the spinneret being located at a position deviating from the center of the spinneret protective cover.
[0024] In combination with the first aspect, in an optional implementation, a flexible gasket is provided at an end corresponding to the outlet of the protective cover.
[0025] In the above implementation process, a flexible gasket is provided at one end corresponding to the outlet of the protective cover, and the flexible gasket can be attached to the human skin.
[0026] In combination with the first aspect, in an optional implementation, the protective cover is conical, and the taper is 0.86-1.42.
[0027] In the above implementation process, the protective cover is conical with a taper of 0.86 to 1.42. The conical protective cover is similar to the injection path of the spinning liquid jet. The conical protective cover can protect the spinning liquid jet formed in the spinning process within the protective cover to reduce the influence of air flow on the spinning liquid jet and improve the spinning stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0029] Figure 1 A schematic plan view of a portable electrospinning device provided as an example of this application;
[0030] Figure 2 Schematic diagram of the auxiliary spinning structure provided for the example of this application;
[0031] Figure 3Bottom view of the protective cover provided for the example of this application;
[0032] Figure 4 A schematic diagram of a first card slot and a second card slot provided for an example of this application;
[0033] Figure 5 Schematic diagram of the card block provided by the example of this application;
[0034] Figure 6 Schematic diagram of the connection between the moving part and the protective cover provided for the example of this application.
[0035] Icon: 100-portable electrospinning device; 10-spinning body; 11-spinneret; 111-spinning end; 20-auxiliary spinning mechanism; 21-protective cover; 211-inlet; 212-outlet; 22-adjusting assembly; 221-fixing part; 2211-first accommodating chamber; 2212-first card slot; 2213-second card slot; 222-moving part; 2221-second accommodating chamber; 2222-card block; 2223-connecting rod; 23-flexible gasket; D1-extension direction. DETAILED DESCRIPTION
[0036] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.
[0038] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.
[0039] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0040] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "middle", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "bottom", and "inside" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.
[0041] At present, when portable electrospinning equipment is used in outdoor environments, the spinning distance is variable, and the spinning liquid jet is easily affected by air flow, which can easily cause spinning instability.
[0042] Therefore, the present application provides a portable electrospinning device 100, which can improve the problem of unstable spinning to a certain extent. In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0043] See also Figure 1 and Figure 2 , Figure 1 A schematic plan view of a portable electrospinning device 100 provided as an example of the present application, Figure 2 Schematic diagram of the auxiliary spinning structure provided for the example of this application ( Figure 2 The protective cover 21 is a perspective view, and the adjustment component 22 is a cross-sectional schematic diagram). The embodiment of the present application provides a portable electrospinning device 100, including a spinning body 10 and an auxiliary spinning mechanism 20. The spinning body 10 has a spinneret 11; the auxiliary spinning mechanism 20 includes an adjustment component 22 and a protective cover 21. The protective cover 21 has an inlet 211 and an outlet 212, and the spinning end 111 of the spinneret 11 extends into the protective cover 21 from the inlet 211; the adjustment component 22 is arranged at the inlet end of the protective cover 21, and is used to adjust the distance between the spinning end 111 and the outlet 212.
[0044] When electrospinning is performed using the portable electrospinning device 100 provided in the embodiment of the present application, the protective cover 21 is brought into contact with the receiving position. Since the spinning end 111 of the spinneret 11 is located in the protective cover 21, the spinning liquid jet ejected from the spinning end 111 can be sprayed to the receiving position under the protection of the protective cover 21, which can reduce the influence of the air flow on the spinning liquid jet and improve the spinning stability.
[0045] Furthermore, when the spinning distance increases, the adjustment component 22 can be used to adjust the distance between the spinneret 111 and the outlet 212 of the protective cover 21, so that the distance between the spinneret 111 and the outlet 212 of the protective cover 21 becomes longer to meet the long-range requirement of the spinning liquid jet.
[0046] When the spinning distance becomes smaller, the adjustment component 22 can be used to adjust the distance between the spinneret end 111 and the outlet 212 of the protective cover 21 to shorten the distance between the spinneret end 111 and the outlet 212 of the protective cover 21 to meet the short-range requirement of the spinning liquid jet.
[0047] The present application does not limit the specific structure of the protective cover 21. In a possible embodiment, please refer to Figure 2 and Figure 3 , the protective cover 21 is conical.
[0048] The protective cover 21 is set to be conical, similar to the injection path of the spinning liquid jet, so that the spinning liquid jet formed during the spinning process can be protected in the protective cover 21 to reduce the influence of air flow on the spinning liquid jet and improve the spinning stability.
[0049] Furthermore, in some possible embodiments, the taper of the protective cover 21 may be 0.86-1.42.
[0050] Exemplarily, the taper of the protective cover 21 may be one of 0.86, 0.87, 0.88, 1, 1.4 or 1.42, or a range between any two thereof.
[0051] Furthermore, in some possible embodiments, the diameter of the small end of the conical protective cover 21 may be 1 to 3 cm, the diameter of the large end may be 9 to 9.5 cm, and the height may be 6 to 7 cm.
[0052] The present application does not limit the material of the protective cover 21 . In some possible embodiments, the material of the protective cover 21 may be polypropylene or high borosilicate glass.
[0053] In some possible embodiments, the axis of the inlet 211 of the protective cover 21 is coaxial with the axis of the protective cover 21 .
[0054] Furthermore, in some possible embodiments, the diameter of the inlet 211 of the protective cover 21 may be 1.2-2.5 mm, which can reduce the probability that the spinneret 11 is located off-center from the protective cover 21 and causes the spinning liquid jet to deviate from the receiving target.
[0055] In one possible embodiment, please refer to Figure 3 A flexible gasket 23 may be provided at one end corresponding to the outlet 212 of the protective cover 21 .
[0056] Exemplarily, the material of the flexible gasket 23 may be selected from silicone or rubber.
[0057] The present application does not limit how the adjustment component 22 adjusts the distance between the spinneret end 111 and the outlet 212 of the protective cover 21. In some possible embodiments, please continue to refer to Figure 2 The adjusting assembly 22 includes a fixing member 221 and a moving member 222. The fixing member 221 is connected to the spinning body 10. Along the extension direction D1 of the spinneret 11, the protective cover 21 is slidably connected to the fixing member 221 through the moving member 222, and can be selectively fixed to one position of the fixing member 221 along the extension direction D1.
[0058] Since the fixing part 221 is connected to the spinning body 10, when the movable part 222 drives the protective cover 21 to move along the extension direction D1, the position of the outlet 212 of the protective cover 21 will change relative to the fixing part 221. Since the positions of the spinneret end 111 and the fixing part 221 are relatively fixed, the position of the outlet 212 of the protective cover 21 will change relative to the spinneret end 111, thereby realizing the adjustment of the distance between the outlet 212 of the protective cover 21 and the spinneret end 111.
[0059] Further, the present application does not limit how the moving member 222 drives the protective cover 21 to move along the extension direction D1. In some possible embodiments, the fixed member 221 includes a screw rod and a guide rod arranged in parallel, one end of the screw rod and the guide rod are fixedly connected to the spinning body 10, and the screw rod and the guide rod extend along the extension direction D1. The moving member 222 is provided with a threaded hole and a through hole. The moving member 222 is threadedly connected to the screw rod through the threaded hole, and is slidably connected to the guide rod through the through hole. The protective cover 21 is fixedly connected to the moving member 222.
[0060] When the distance between the outlet 212 of the protective cover 21 and the spinneret 111 needs to be adjusted, the movable member 222 can be moved axially along the screw by rotating the screw, thereby driving the protective cover 21 away from or close to the spinning body 10 along the extension direction D1 of the screw.
[0061] The distance between the outlet 212 of the protective cover 21 and the spinneret end 111 is adjusted by using the adjustment component 22. The middle part of the spinneret 11 and the other end away from the spinneret end 111 are located outside the protective cover 21 and exposed to the external environment. The operator may accidentally touch the spinneret 11 exposed to the external environment during operation, which reduces safety.
[0062] For increased security, in another possible embodiment, see Figure 2A first accommodating cavity 2211 is provided inside the fixed member 221, and a second accommodating cavity 2221 is provided inside the movable member 222; one end of the movable member 222 extends into the first accommodating cavity 2211 and is slidably connected to the movable member 222; the protective cover 21 is connected to the other end of the movable member 222, and the second accommodating cavity 2221 is communicated with the inlet 211 of the protective cover 21, and the spinneret 11 passes through the second accommodating cavity 2221 into the protective cover 21.
[0063] One end of the fixing member 221 is connected to the spinning body 10, and the moving member 222 is connected to the protective cover 21, so that the spinneret 11 passes through the first accommodating cavity 2211 and the second accommodating cavity 2221 into the protective cover 21, which can prevent the spinneret 11 from being exposed to the external environment and improve safety.
[0064] Furthermore, in some possible embodiments, the material of the moving member 222 may be selected from polypropylene or high borosilicate glass.
[0065] In some possible embodiments, the fixed member 221 and the movable member 222 may be configured as a rotating body. For example, the fixed member 221 may be configured as a cylindrical shape, and the movable member 222 may be configured as a cylindrical shape. The outer diameter of the movable member 222 is smaller than the inner diameter of the fixed member 221.
[0066] Furthermore, the length of the cylindrical moving member 222 may be consistent with the length of the fixing member 221 .
[0067] Further, in some possible embodiments, the inner diameter of the cylindrical moving member 222 can be set to 1-3 cm to facilitate the passage of the spinneret 11 .
[0068] Further, in order to facilitate the movement of the moving member 222 in the first accommodating chamber 2211, in a possible embodiment, refer to Figure 4 The inner wall of the fixing member 221 is provided with a slot group, which includes a plurality of first slots 2212 and second slots 2213, and the plurality of first slots 2212 and second slots 2213 are alternately arranged in sequence along the extension direction D1. Along the circumference of the fixing member 221, the width of the first slot 2212 is smaller than the width of the second slot 2213, and the first slot 2212 and the second slot 2213 have a smooth transition.
[0069] See also Figure 5 and Figure 6 ( Figure 62 is a partial cross-sectional view, in which the moving member 222 is a cross-sectional view), the outer wall of the moving member 222 away from the protective cover 21 is provided with two blocks 2222, and a connecting rod 2223 is provided between the two blocks 2222. The two blocks 2222 are respectively clamped in the adjacent first clamping groove 2212 and the second clamping groove 2213, so that the two blocks 2222 can slide to the other adjacent first clamping groove 2212 and the second clamping groove 2213 under the action of external force, and are fixed after the external force disappears.
[0070] Furthermore, in some possible embodiments, the difference between the width of the first slot 2212 and the width of the block 2222 is 0.3 to 0.5 mm, the difference between the width of the second slot 2213 and the width of the first slot 2212 is 0.5 to 1 mm, and the arc of the smooth transition between the first slot 2212 and the second slot 2213 is 40 to 60°.
[0071] Exemplarily, the difference between the width of the second card slot 2213 and the width of the first card slot 2212 may be in the range of 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm or 1 mm, or any two thereof.
[0072] Exemplarily, the arc of the smooth transition between the first slot 2212 and the second slot 2213 may be in the range of 40°, 45°, 50°, 55° or 60°, or any two thereof.
[0073] Since the width of the second slot 2213 is greater than that of the first slot 2212, with a width difference of 0.5 to 1 mm, and the width of the first slot 2212 is greater than that of the block 2222, with a width difference of 0.3 to 0.5 mm, one of the blocks 2222 can be relatively easily inserted into the second slot 2213 for easy movement; at the same time, the other block 2222 can be relatively stably inserted into the first slot 2212 for easy fixation. By using the cooperation of the first slot 2212, the second slot 2213 and the block 2222 with different width differences, the adjustment component 22 can adjust the position of the protective cover 21.
[0074] If all the second slots 2213 are provided, the width difference between the second slots 2213 and the block 2222 is too large. Although the movement of the block 2222 can be facilitated, the stability of the block 2222 in the second slot 2213 after movement is poor, which will affect the adjustment accuracy of the adjustment component 22.
[0075] If all first card slots 2212 are set, the width difference between the first card slot 2212 and the card block 2222 is too small. Although the two card blocks 2222 can be stably set in the two first card slots 2212, it is difficult to move the two card blocks 2222, and a larger external force is required to move the card block 2222 to another first card slot 2212.
[0076] Furthermore, in a possible embodiment, along the circumference of the fixing member 221 , a plurality of groups of card slots are arranged at intervals on the inner wall of the fixing member 221 , and a plurality of groups of one-to-one corresponding card blocks 2222 are arranged on the outer wall of the moving member 222 .
[0077] Exemplarily, along the circumference of the fixing member 221 , a plurality of groups of slot groups are arranged at equal intervals.
[0078] Exemplarily, the multiple card slot groups are symmetrically arranged.
[0079] Alternatively, in some other possible embodiments, the protective cover 21 may be configured as a foldable and retractable structure. Along the extension direction D1, a plurality of foldable folds are provided on the body wall of the protective cover 21, and the protective cover 21 may be folded or opened along the folds to shorten or lengthen the protective cover 21.
[0080] The present application does not limit the specific structure of the spinning body 10. In some possible embodiments, the spinning body 10 may include an insulating housing, a syringe is arranged in the housing, and the spinneret 11 is connected to the syringe and passes through the insulating housing. A power supply and a high-voltage inverter may also be arranged in the insulating housing, the positive electrode of the power supply is electrically connected to the positive electrode of the high-voltage inverter through a wire, and the output end of the high-voltage inverter is electrically connected to the spinneret 11 through a wire.
[0081] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A portable electrospinning device, characterized in that: include: A spinning body, wherein the spinning body has a spinneret; Auxiliary spinning mechanism, including adjustment components and protective cover; The protective cover has an inlet and an outlet, and the spinning end of the spinneret extends into the protective cover from the inlet; the adjusting component is arranged at the inlet end of the protective cover and is used for adjusting the distance between the spinning end and the outlet.
2. The portable electrospinning device according to claim 1, characterized in that: The adjustment component includes a fixed part and a movable part, the fixed part is connected to the spinning body; along the extension direction of the spinneret, the protective cover is slidably connected to the fixed part through the movable part, and can be selectively fixed to one of the positions of the fixed part along the extension direction.
3. The portable electrospinning device according to claim 2, characterized in that: A first accommodating cavity is provided inside the fixed part, and a second accommodating cavity is provided inside the movable part; one end of the movable part extends into the first accommodating cavity and is slidably connected to the fixed part; the protective cover is connected to the other end of the movable part, and the second accommodating cavity is communicated with the inlet, and the spinneret passes through the second accommodating cavity into the protective cover.
4. The portable electrospinning device according to claim 3, characterized in that: The fixing member is cylindrical, and a slot group is provided on the inner wall of the fixing member, and the slot group includes a plurality of first slots and second slots which are alternately arranged in sequence along the extension direction; along the circumference of the fixing member, the width of the first slot is smaller than the width of the second slot, and there is a smooth transition between the first slot and the second slot; two blocks are provided on the outer wall of the end of the movable member away from the protective cover, and a connecting rod is provided between the two blocks; the two blocks are respectively arranged in adjacent first slots and second slots, so that the two blocks can slide to the other adjacent first slot and second slot under the action of external force, and be fixed after the external force disappears.
5. The portable electrospinning device according to claim 4, characterized in that: The difference between the width of the first card slot and the width of the card block is 0.3-0.5 mm, the difference between the width of the second card slot and the width of the first card slot is 0.5-1 mm, and the arc of smooth transition between the first card slot and the second card slot is 40-60°.
6. The portable electrospinning device according to claim 4 or 5, characterized in that: Along the circumference of the fixing member, the inner wall of the fixing member is provided with a plurality of groups of the card slot groups at intervals, and the outer wall of the moving member is provided with a plurality of groups of the card blocks corresponding to each other.
7. The portable electrospinning device according to claim 1, characterized in that: The axis center of the inlet is coaxial with the axis center of the protective cover.
8. The portable electrospinning device according to claim 6, characterized in that: The diameter of the inlet is 1.2-2.5 mm.
9. The portable electrospinning device according to claim 1, characterized in that: A flexible gasket is provided at one end of the protective cover corresponding to the outlet.
10. The portable electrospinning device according to claim 1, characterized in that: The protective cover is conical, and the taper is 0.86-1.42.