CN217517073U - Gear pump type handheld electrostatic spinning device - Google Patents

Abstract

A gear pump type handheld electrospinning apparatus comprising: the device comprises a shell, a liquid storage mechanism, a spinning injection mechanism, a gear pump module, a power supply and a high-voltage direct current generating mechanism; the shell is provided with a handheld part, and the handheld part is provided with a conductive part; the spinning injection mechanism comprises: the spinning nozzle and the conductive connector are communicated with each other; the liquid storage mechanism is used for storing spinning liquid, the liquid storage mechanism is communicated with the gear pump module, and the gear pump module is used for extracting the spinning liquid in the liquid storage mechanism and supplying the spinning liquid to the spinning nozzle through the conductive connector; the power supply can generate low-voltage direct current, the high-voltage direct current generating mechanism is used for boosting the low-voltage direct current generated by the power supply into high-voltage direct current, the positive connecting end of the high-voltage direct current generating mechanism is electrically connected with the conductive joint, and the negative connecting end of the high-voltage direct current generating mechanism is electrically connected with the conductive part. This device adopts the gear pump module, is different from traditional cylinder and adds the syringe pump mode of syringe needle for this device compact structure, small in size, the operation is more convenient.

Description

Gear pump type handheld electrostatic spinning device

Technical Field

The application relates to the technical field of electrostatic spinning, in particular to a gear pump type handheld electrostatic spinning device.

Background

Electrostatic spinning is a special form of electrostatic atomization of high molecular fluid, and substances split by atomization are not micro droplets but polymer micro jet flows, and are finally solidified into continuous fibers through the stretching effect on the polymer fluid.

The electrostatic spinning technology can easily prepare the nano-grade fiber based on the principle advantages, and has the advantages of low spinning cost, numerous raw material sources, mass production and the like. The spinning product has excellent physical characteristics such as high specific surface area, large length-diameter ratio and the like, so that the spinning product has great application potential in the fields of medical and beauty treatment, wound dressing, drug slow release and the like.

The traditional electrostatic spinning device consists of three main components, namely a high-voltage power supply, an electrospinning spray head, an electrospinning collecting device and the like, but the equipment is too heavy and inconvenient to carry and use. In recent years, related researchers improve the portability and usability of the electrostatic spinning device, but the device mostly adopts a syringe pump mode of adding a needle into a syringe, liquid is discharged by pushing the liquid discharge by hands or is driven by an additional linear motion module, the device has larger structure volume, lower liquid discharge rate controllability, complicated liquid medicine replacement operation and no portable use condition, so the commercialization prospect is poor.

SUMMERY OF THE UTILITY MODEL

The application aims at providing a gear pump formula handheld electrostatic spinning device adopts the gear pump module to supply the liquid mode to reach device compact structure, small in size, play accurate controllable, the change liquid medicine is simple, the simple operation's of liquid service condition.

The application provides a handheld electrostatic spinning device of gear pump formula includes: the device comprises a shell, a liquid storage mechanism, a spinning injection mechanism, a gear pump module, a power supply and a high-voltage direct current generating mechanism; the shell is provided with a handheld part, and the handheld part is provided with a conductive part; the inner part of the shell is provided with a containing cavity; the liquid storage mechanism, the spinning injection mechanism, the gear pump module, the power supply and the high-voltage direct current generating mechanism are all arranged in the accommodating cavity; the spinning injection mechanism comprises: the spinning nozzle and the conductive connector are communicated with each other; the liquid storage mechanism is used for storing spinning liquid, the liquid storage mechanism is connected with a gear pump module, and the gear pump module is used for extracting the spinning liquid in the liquid storage mechanism and supplying the spinning liquid to a spinning nozzle through a conductive connector; the shell is also provided with a mounting hole communicated with the accommodating cavity, and the spinning nozzle is mounted in the mounting hole; the power can produce the low pressure direct current, the output of power with gear pump module and high voltage direct current generate the mechanism electricity and connect, high voltage direct current generate the mechanism be used for with the produced low pressure direct current of power steps up into high voltage direct current, high voltage direct current generates the mechanism and has anodal link and negative pole link, anodal link with the conductive contact electricity is connected, the negative pole link with the conductive part electricity is connected.

In one embodiment, the gear pump module comprises: gear pump and driving motor, driving motor with the power electricity is connected, driving motor's motor shaft with the input shaft transmission of gear pump is connected, the gear pump has feed liquor port and goes out the liquid port, the feed liquor port with stock solution mechanism intercommunication, go out the liquid port with conductive joint intercommunication.

In one embodiment, the reservoir mechanism comprises: a flexible liquid storage bin for storing spinning liquid.

In one embodiment, the housing is provided with a conductive coating thereon, the conductive coating forming the conductive portion.

In one embodiment, the high voltage direct current generating mechanism includes: the input end of the boosting unit is electrically connected with the power supply, the boosting unit is used for boosting the low-voltage direct current of the power supply into high-voltage direct current, and the positive connecting end and the negative connecting end are both arranged at the output end of the boosting unit.

In one embodiment, the gear pump type handheld electrospinning apparatus further comprises: the voltage control circuit board is provided with a voltage output control module, the input end of the voltage output control module is electrically connected with the power supply, the output end of the voltage output control module is electrically connected with the boosting unit, and the voltage output control module is used for adjusting the voltage of high-voltage direct current formed by the boosting unit.

In one embodiment, the master control circuit board still is equipped with drive control module, drive control module's input is connected with the power electricity, drive control module's output with the gear pump module electricity is connected, drive control module is used for adjusting through the power to the voltage size of gear pump module output, in order to control the output of gear pump module, thereby adjust the rate that the spinning liquid in the stock solution mechanism supplies to the spinning shower nozzle through the gear pump module.

In one embodiment, the main control circuit board is further provided with a safety protection module, and the safety protection module is used for cutting off the high-voltage output of the boosting unit when a human body simultaneously touches the positive connecting end and the negative connecting end.

In one embodiment, the main control circuit board is further provided with a voltage output control module, and the boosting unit includes: the output end of the power supply is electrically connected with the input end of the voltage transformation module, the voltage output control module is used for generating a boosting signal for controlling boosting of the voltage transformation module, the output end of the voltage transformation module is connected with the input end of the voltage doubling module, the voltage doubling module is also provided with an anode output end and a cathode output end, the anode output end is the anode connecting end, and the cathode output end is the cathode connecting end; the voltage transformation module is used for boosting the low-voltage direct current provided by the power supply, and the voltage doubling module is used for increasing the multiple of the low-voltage direct current boosted by the voltage transformation module to form high-voltage direct current.

In one embodiment, the gear pump type handheld electrospinning device further comprises: a switch assembly disposed on the housing, the switch assembly comprising: the power on/off control switch, the high-voltage output control switch and the liquid supply control switch; the power on-off control switch is used for controlling connection or disconnection between the power supply and the main control circuit board; the high-voltage output control switch is arranged between the power supply and the boosting unit and used for controlling connection or disconnection between the power supply and the boosting unit; the liquid supply control switch is arranged between the drive control module and the gear pump module and used for controlling the connection or disconnection between the drive control module and the gear pump module.

According to the handheld electrostatic spinning device of gear pump formula that this application provided, adopt the power and step up the unit and form high-voltage direct current, on the one hand, the device circuit reduces the whole consumption of device through the low-power design, promotes the device duration to can reach used repeatedly's purpose, on the other hand, make this electrostatic spinning spout membrane device portable, need not to dispose large capacity power, external power source or hold power etc.. In addition, this device adopts gear pump module mode to supply liquid, and device compact structure, small in size, it is accurate controllable to go out liquid rate, and stock solution mechanism and spinning injection mechanism preparation formula module as an organic whole can wholly be changed, and then it is simple to change the liquid medicine, and it is more convenient to operate and use.

Drawings

Fig. 1 is a perspective view of a gear pump type handheld electrospinning apparatus provided herein;

fig. 2 is an exploded view of a gear pump type handheld electrospinning device provided by the present application in a first embodiment;

fig. 3 is a schematic structural diagram of an integrated module formed by a liquid storage mechanism and a spinning injection mechanism of the gear pump type handheld electrostatic spinning device provided by the present application;

FIG. 4 is a block diagram of a control module in the gear pump type handheld electrostatic spinning device provided by the present application;

fig. 5 is a block diagram of a boosting unit in the gear pump type handheld electrospinning device provided by the present application.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments have been given like element numbers associated therewith. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in this specification in order not to obscure the core of the present application with unnecessary detail, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

In addition, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments, and the operation steps involved in the embodiments may be sequentially exchanged or adjusted in a manner that can be obvious to those skilled in the art. Accordingly, the description and drawings are merely for clarity of description of certain embodiments and are not intended to necessarily refer to a required composition and/or order.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The utility model provides a handheld electrostatic spinning of gear pump formula spouts membrane device mainly used medical science and beauty, wound dressing, fields such as medicine slowly-releasing, this electrostatic spinning spouts the handheld operation of membrane device accessible operating personnel, portable, and the spinning liquid that the gear pump module stored in with stock solution mechanism is supplied with to spinning injection mechanism, and spinning injection mechanism forms the membranous with its blowout under the effect of high voltage direct current emergence mechanism. The following embodiments are applied to the medical and beauty field as an example, and the gear pump type handheld electrostatic spinning film spraying device can be used for spraying the film to the surface of human skin to form a facial mask so as to achieve the effects of beautifying and protecting skin.

Referring to fig. 1 to 5, the gear pump type handheld electrospinning device provided in this embodiment includes: the device comprises a shell 10, a liquid storage mechanism 54, a spinning jet mechanism 52, a gear pump module 154, a power supply 29 and a high-voltage direct current generating mechanism.

The housing 10 is usually an insulating housing made of insulating material, and the housing 10 has a hand-holding portion 11, and the hand-holding portion 11 is used for being held by a hand of a user. The conductive portion 111 is provided in the handheld portion 11, and as shown in fig. 1, a rectangular frame provided in the handheld portion 11 in fig. 1 is roughly framed by a position and a range where the conductive portion 111 is provided, and the position and the range shown in fig. 1 are only for explaining the conductive portion 111 in the present embodiment, and the position and the range where the conductive portion 111 is provided are not limited. The housing 10 has a receiving cavity 12 therein, and the aforementioned reservoir mechanism 54, the spinning jet mechanism 52, the gear pump module 154, and the hvdc generator are disposed in the receiving cavity 12, in other words, mounting positions for mounting the reservoir mechanism 54, the spinning jet mechanism 52, the gear pump module 154, and the hvdc generator are disposed in the receiving cavity 12.

In this embodiment, the housing 10 is composed of a housing 50 and a cover plate 56, wherein the housing 50 is a groove structure, and the cover plate 56 covers the groove of the housing 50, so as to form the receiving cavity 12. In a more preferred embodiment, the cross-sectional shape of the housing 50 is the same as the shape of the cover 56 to facilitate forming the hand-held portion 11.

The spinning jet mechanism 52 includes: the spinning nozzle 13 and the conductive contact 153 are connected to each other, and specifically, as shown in fig. 3, the spinning nozzle 13 has a nozzle 155, the conductive contact 153 has a liquid passing passage, and the gear pump module 154 is connected to the liquid passing passage of the conductive contact 153, and the liquid passing passage is connected to the nozzle 155. The reservoir 54 is used to store a spinning solution, which is typically a mixture of a polymer and a solvent. The liquid storage mechanism 54 communicates with a gear pump module 154 through an electric joint 153, the gear pump module 154 is used for supplying the spinning solution in the liquid storage mechanism 54 to the spinning head through a solution passage of the electric joint 153, and a nozzle 155 on the spinning head 13 can inject the spinning solution when the gear pump module 154 is operated. The housing 10 is also provided with a nozzle cover 51 for fixing the spinning nozzle 13.

The power supply 29 can generate low voltage dc power, the output terminal of the power supply 29 is electrically connected to the gear pump module 154 and the high voltage dc power generation mechanism for boosting the low voltage dc power generated by the power supply 29 into high voltage dc power, the high voltage dc power generation mechanism has a positive connection terminal and a negative connection terminal, the positive connection terminal is electrically connected to the conductive connector 153, and the negative connection terminal is electrically connected to the conductive portion 111.

In the present embodiment, the reservoir mechanism 54 and the spinning jet mechanism 52 are detachably mounted in the receiving cavity 12 as an integral module. It can be understood that the liquid storage mechanism 54 and the spinning injection mechanism 52 can be an integrated structure, or the liquid storage mechanism 54 and the spinning injection mechanism 52 can be a split structure, but still work in a modular form when in use, and in actual use, the split liquid storage mechanism 54 or the integrated liquid storage mechanism 54 and the spinning injection mechanism 52 can be replaced according to the requirement of the spinning solution and the requirement of the spinning solution.

Accordingly, to facilitate replacement, the cover 56 is removably mounted at the notch of the housing 50, for example, by a snap-fit.

In this embodiment, the conductive contact 153 is made of a conductive metal material such as iron or copper or a conductive-material-doped plastic material, and the spinning nozzle 13 is made of an insulating material such as plastic.

In actual use, the operator holds the hand-held portion 11 with his or her hand and, by the operation of the operator, brings the nozzle 155 of the spinning nozzle 13 above the skin on which the operator is required to form a film, and normally, the nozzle 155 is spaced from the skin by about 10 cm. The hand of the operator contacts with the conductive part 111, and the negative pole of the high-voltage direct current is connected with the operator through the negative pole connecting end and the conductive part 111, so that the skin surface of the operator carries negative charges. The spinning solution stored in the reservoir 54 is supplied to the spinning nozzle 13 through the gear pump module 154 via the conductive connector 153, and when the spinning solution passes through the conductive connector 153, the spinning solution is allowed to carry positive charges under the action of high-voltage direct current. At this time, a high voltage electric field is formed between the nozzle 155 and the skin of the operator, the spinning solution carrying positive charges is acted by the electric field force in the high voltage electric field, and forms filaments to move to the negative electrode, namely the skin surface of the operator, after overcoming the surface tension of the liquid, the solvent in the spinning solution volatilizes in the moving process, and forms filaments after completely volatilizing, and the filaments are deposited on the skin surface, so that the collection of spinning is realized, and the purpose of forming a film by spinning is achieved along with the duration of time.

In the handheld electrostatic spinning of gear pump formula that this embodiment provided spouts membrane device, adopt power 29 and booster unit 21 to form high voltage direct current, power 29 is dry battery or rechargeable battery, and on the one hand, power supply circuit reduces the whole consumption of device through the low-power design, promotes device duration to can reach used repeatedly's purpose, on the other hand, make this electrostatic spinning spout membrane device portable, need not to dispose large capacity power, external power supply etc.. In addition, the liquid storage mechanism 54 and the spinning injection mechanism 52 of the present embodiment are an integrated module, which has a compact structure, and the module can be directly replaced to achieve the purpose of replacing the liquid medicine.

The high-voltage direct current generating mechanism comprises: the boosting unit 21, the boosting unit 21 is electrically connected with the power supply 29, and the power supply 29 is also electrically connected with the gear pump module 154 to provide electric energy required by the operation for the gear pump module 154. The boosting unit 21 is used to convert the low-voltage dc power of the power supply 29 into high-voltage dc power. The booster unit 21 has a positive electrode connection terminal electrically connected to the conductive tab 153 through the conductive case 55, and a negative electrode connection terminal electrically connected to the conductive portion 111. In general, the boosting unit 21 can convert the low-voltage dc of the power supply 29 into a high-voltage dc of several kv to several tens of thousands v to meet the application requirements of spinning and film forming.

Referring to fig. 4, the gear pump type handheld electrostatic spinning film spraying device provided by this embodiment further includes: the main control circuit board 60, the main control circuit board 60 has a voltage output control module 61 and a driving control module 63, an input end of the voltage output control module 61 is electrically connected with the power supply 29, an output end of the voltage output control module 61 is electrically connected with the voltage boosting unit 21, and the voltage output control module 61 is configured to adjust a voltage of the high voltage direct current output by the voltage boosting unit 21. The input of drive control module 63 is connected with power 29 electricity, the output of this drive control module 63 is connected with gear pump module 154 electricity, drive control module 63 is used for adjusting the voltage size of exporting to gear pump module 154 through power 29, with the output of control gear pump module 154, thereby adjust the velocity that the dope in stock solution mechanism 54 supplied to spinning nozzle 13 through conductive joint 153, adjust the size that the dope supplied to spinning nozzle 13 volume promptly, thereby be convenient for the control of spinning silk output, so that the accurate control silk output, realize directional deposition.

Through the setting of drive control module 63, the rotational speed of adjustable gear pump module 154 for the rotational speed of gear pump module 154 can regulate and control on a large scale, and then supply liquid rate is accurate adjustable, is different from the traditional syringe pump mode that the cylinder adds the pillow, makes this device structure compacter, small and exquisite portable, and stock solution mechanism 54 volume accounts for than greatly promoting, and it is strong to go out liquid rate controllability simultaneously.

As shown in fig. 3, the gear pump module 154 is installed in the gear pump module housing 152, and the gear pump module 154 is communicated with the liquid storage mechanism 54 through the diversion suction pipe 151.

In this embodiment, as shown in fig. 2, the gear pump module 154 includes: gear pump and driving motor 53, driving motor 53 is connected with power 29 electricity, supplies power to it through power 29, and the motor shaft of driving motor 53 is connected with the input shaft transmission of gear pump, and the gear pump has liquid inlet port and a liquid outlet port, and wherein, liquid inlet port communicates with liquid storage mechanism 54, and the liquid outlet port communicates with the conductive joint.

In this embodiment, the liquid storage mechanism 54 includes: a flexible stock solution storehouse for storing spinning liquid, the liquid outlet in flexible stock solution storehouse with the inlet intercommunication of gear pump module 154, gear pump module 154 with power transmission extremely gear pump module 154, gear pump module 154 begins the operation back, the inlet of gear pump module 154 can produce the negative pressure, and then can follow spinning liquid is extracted out in the flexible stock solution storehouse to carry to spinning nozzle 13, the volume in flexible stock solution storehouse can be because the reduction of inside spinning liquid and produce the shrink to balanced pressure differential.

With continued reference to fig. 4, the main control circuit board 60 in the gear pump type handheld electrostatic spinning film spraying apparatus provided in this embodiment further includes: the safety protection module 62, this safety protection module 62 is used for cutting off the high-voltage output of the unit 21 that steps up when the positive link and negative link are touched simultaneously to the human body, can effectively avoid causing the discomfort that the electric shock brought to operating personnel.

With continued reference to fig. 1 and 2, in the present embodiment, the gear pump type handheld electrostatic spinning film spraying device provided by the present application further includes: a switch assembly provided on the housing 10, the switch assembly comprising: a power on/off control switch 71, a high voltage output control switch 72, and a liquid supply control switch 73. The on-off control switch 71 is used for controlling connection or disconnection between the power supply 29 and the main control circuit board 60; a high-voltage output control switch 72 is provided between the power supply 29 and the booster unit 21 for controlling connection or disconnection between the power supply 29 and the booster unit 21; the liquid supply control switch 73 is arranged between the drive control module 63 and the gear pump module 154, and the liquid supply control switch 73 is used for controlling connection or disconnection between the drive control module 63 and the gear pump module 154.

In this embodiment, the main control circuit board 60 is powered by the power supply 29, the main control circuit board 60 is further provided with a switch control module 64 and an expansion communication interface module 65, and the gear pump module 154 provides suction power to deliver the spinning solution to the spinning nozzle 13. The switch control module 64 is used for controlling connection or disconnection between the keys and the modules, for example, connection or disconnection between the liquid supply output control switch 73 and the drive control module 61. The extension communication interface module 65 may be used to connect an extension module, for example, to interactively communicate with the mobile terminal through a wireless module (e.g., wifi, bluetooth).

Accordingly, in this embodiment, the switch 74 of fig. 1 can be used as a backup switch.

In one embodiment, each switch may be a push switch or a rotary switch. In this embodiment, a push switch is preferably used as each switch.

In an embodiment, the housing 10 is provided with a conductive coating formed as a conductive portion 111.

Referring to fig. 5, the booster unit 21 includes: the output end of the power supply 29 is electrically connected with the input end of the transforming module 521, the output end of the transforming module 521 is connected with the input end of the voltage doubling module 522, the voltage doubling module 522 is further provided with a positive output end 5221 and a negative output end 5222, the positive output end 5221 is a positive connecting end, and the negative output end 5222 is a negative connecting end. The power supply 29 can provide low-voltage direct current, the transforming module 521 boosts the low-voltage direct current provided by the power supply 29 under the signal control of the voltage output control module 61, and the voltage doubling module 522 is used for increasing the multiple of the low-voltage direct current boosted by the transforming module 521 to form high-voltage direct current.

To sum up, the gear pump type handheld electrostatic spinning device provided by the embodiment adopts the power supply and the boosting unit to form high-voltage direct current, on one hand, the circuit of the device is designed with low power, so that the overall power consumption of the device is reduced, the endurance time of the device is prolonged, and the purpose of repeated use can be achieved, and on the other hand, the electrostatic spinning film spraying device is convenient to carry without configuring a large-capacity power supply, an external power supply or a dry power supply and the like. In addition, this device stock solution mechanism, spinning injection mechanism can make formula module as an organic whole to realize going out liquid and spinning function, gear pump module rotational speed is controllable, and then supply liquid rate is accurate adjustable, is different from the injection pump mode of traditional cylinder with the syringe needle, and this device compact structure, small in size goes out liquid rate controllability strong, and the liquid medicine is changed simply, and it is more convenient to operate.

The foregoing is a more detailed description of the present application in connection with specific embodiments thereof, and it is not intended to limit the present application to the details thereof. It will be apparent to those skilled in the art from this disclosure that many more simple derivations or substitutions can be made without departing from the inventive concepts herein.

Claims (10)

1. A gear pump type handheld electrostatic spinning device is characterized by comprising: the device comprises a shell, a liquid storage mechanism, a spinning injection mechanism, a gear pump module, a power supply and a high-voltage direct current generating mechanism; the shell is provided with a handheld part, and the handheld part is provided with a conductive part; the interior of the shell is provided with a containing cavity; the liquid storage mechanism, the spinning injection mechanism, the gear pump module, the power supply and the high-voltage direct current generating mechanism are all arranged in the accommodating cavity; the spinning injection mechanism comprises: the spinning nozzle and the conductive connector are communicated with each other; the liquid storage mechanism is used for storing spinning liquid, the liquid storage mechanism is connected with a gear pump module, and the gear pump module is used for extracting the spinning liquid in the liquid storage mechanism and supplying the spinning liquid to a spinning nozzle through a conductive connector; the shell is also provided with a mounting hole communicated with the accommodating cavity, and the spinning nozzle is mounted in the mounting hole; the power can produce low voltage direct current, the output of power with gear pump module and high voltage direct current generate the mechanism electricity and are connected, high voltage direct current generates the mechanism and is used for with the produced low voltage direct current of power steps up into high voltage direct current, high voltage direct current generates the mechanism and has anodal link and negative pole link, anodal link with the conductive contact electricity is connected, the negative pole link with the conductive part electricity is connected.

2. The gear pump type handheld electrospinning device of claim 1, wherein the gear pump module comprises: gear pump and driving motor, driving motor with the power electricity is connected, driving motor's motor shaft with the input shaft transmission of gear pump is connected, the gear pump has feed liquor port and goes out the liquid port, the feed liquor port with stock solution mechanism intercommunication, go out the liquid port with conductive joint intercommunication.

3. The gear pump type handheld electrospinning device of claim 1, wherein the reservoir mechanism comprises: a flexible liquid storage bin for storing spinning liquid.

4. The gear pump handheld electrospinning device of claim 1, wherein the housing has a conductive coating disposed thereon, the conductive coating forming the conductive portion.

5. The gear pump type handheld electrospinning device of claim 1, wherein the high voltage direct current generating mechanism comprises: the input end of the boosting unit is electrically connected with the power supply, the boosting unit is used for boosting the low-voltage direct current of the power supply into high-voltage direct current, and the positive connecting end and the negative connecting end are both arranged at the output end of the boosting unit.

6. The gear pump handheld electrospinning device of claim 5, wherein the gear pump handheld electrospinning device further comprises: the voltage control circuit board is provided with a voltage output control module, the input end of the voltage output control module is electrically connected with the power supply, the output end of the voltage output control module is electrically connected with the boosting unit, and the voltage output control module is used for adjusting the voltage of high-voltage direct current formed by the boosting unit.

7. The gear pump type handheld electrostatic spinning device according to claim 6, wherein the main control circuit board is further provided with a driving control module, an input end of the driving control module is electrically connected to a power supply, an output end of the driving control module is electrically connected to the gear pump module, and the driving control module is configured to adjust a voltage output to the gear pump module through the power supply, so as to control an output power of the gear pump module, and thus adjust a rate at which the spinning solution in the solution storage mechanism is supplied to the spinning nozzle through the gear pump module.

8. The gear pump type handheld electrostatic spinning device according to claim 7, wherein the main control circuit board is further provided with a safety protection module, and the safety protection module is used for cutting off the high-voltage direct current formed by the boosting unit when a human body simultaneously touches the positive connecting end and the negative connecting end.

9. The gear pump type handheld electrostatic spinning device of claim 6, wherein the main control circuit board is further provided with a voltage output control module, and the voltage boosting unit comprises: the output end of the power supply is electrically connected with the input end of the voltage transformation module, the voltage output control module is used for generating a boosting signal for controlling boosting of the voltage transformation module, the output end of the voltage transformation module is connected with the input end of the voltage doubling module, the voltage doubling module is also provided with an anode output end and a cathode output end, the anode output end is the anode connecting end, and the cathode output end is the cathode connecting end; the voltage transformation module is used for boosting the low-voltage direct current provided by the power supply, and the voltage doubling module is used for increasing the multiple of the low-voltage direct current boosted by the voltage transformation module to form high-voltage direct current.

10. The gear pump handheld electrospinning device of claim 7 wherein the gear pump handheld electrospinning device further comprises: a switch assembly disposed on the housing, the switch assembly comprising: the power on/off control switch, the high-voltage output control switch and the liquid supply control switch; the power on-off control switch is used for controlling connection or disconnection between the power supply and the main control circuit board; the high-voltage output control switch is arranged between the power supply and the boosting unit and used for controlling connection or disconnection between the power supply and the boosting unit; the liquid supply control switch is arranged between the drive control module and the gear pump module and used for controlling the connection or disconnection between the drive control module and the gear pump module.

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