Direct-current portable follow-up negative pressure suction device with lighting function

Abstract

The invention relates to the technical field of medical instruments, in particular to a direct-current portable follow-up negative pressure suction device with illumination, which comprises a mounting box, a suction tube is rotatably connected to the front end of the mounting box, and a connecting tube and a liquid storage tank are sequentially connected to the rear end of the suction tube; a lighting module is installed at the front end of the suction tube. A first rotating mechanism is arranged on the outer side surface of the liquid storage tank; a second rotating mechanism is arranged at the joint of the suction tube and the mounting box; a connecting rod for linkage is arranged between the first rotating mechanism and the second rotating mechanism; the connecting rod is rotationally connected with the front end of the mounting box. A battery pack is arranged outside the mounting box, and a small generator for supplying power to the battery pack is also arranged in the mounting box; a wind wheel is arranged at one end, penetrating through the liquid storage tank, of an input shaft of the small generator; and a plurality of blades are connected to the wind wheel. And the first rotating mechanism and the second rotating mechanism are matched to drive the lighting module to rotate, so that the treated part is displayed more completely, and the treatment safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a direct current portable negative pressure suction device with follow-up lighting. Background Art

[0002] Negative Pressure Aspiration Device is a device widely used in the medical field. Various suction devices (including manual and electric), reusable and disposable suction devices, and sputum suction tubes have long been widely used in clinical practice to remove bleeding, exudate, pus, and contents of chest organs during surgery, making the surgery clear, reducing the chance of contamination, and cleaning the sputum of patients who cannot take care of themselves, such as critically ill and paralyzed patients, to prevent and treat suffocation and infection. These operations are all performed indoors with active support and treatment techniques. Therefore, the following issues need to be considered: 1. At present, except for simple artificial sputum suction devices, all hospitals and clinics use AC power to complete suction work. If they are operated in the field or the hospital is out of power, these electric suction devices will not work properly. If they work with generators, diesel supply is also required. However, if the diesel supply is short or there is no generator, these surgeries or sputum suction of critically ill patients will not be completed, and even life-threatening.

[0003] 2. Deep surgery lighting attraction: Adequate light is conducive to surgical exposure, especially deep surgery and deep tissue inspection and treatment require the magnification of the camera to complete, but surgical operations in hidden parts are often not fully displayed due to insufficient light.

[0004] 3. It is inconvenient to disinfect ships and field equipment. A disposable suction tube can be designed to avoid inconvenient disinfection and cross infection.

[0005] The Chinese patent with the authorization announcement number CN217853992U discloses a lighted aspirator, including a suction tube, the tail end of which is fixedly connected to the head of a hollow handle, the suction tube is made of transparent material, and a plurality of evenly distributed transparent light-guiding fiber tubes and a plastic iron wire are embedded inside the suction tube, a light-emitting body is embedded in the head of the hollow handle, and the tail of the hollow handle is detachably fixedly connected to one end of a connecting tube, and the other end of the connecting tube is connected to a negative pressure device, and the negative pressure device is connected to a foot-operated negative pressure start switch through a wire. The utility model provides an aspirator that can adjust the curvature of the suction tube and is convenient for lighting.

[0006] However, the above-mentioned illuminated suction device still has the following problems when in use: (1) The illuminated suction device adjusts the curvature of the suction tube head by setting an iron wire. The curvature can only be adjusted before use, and it is difficult to grasp the accuracy of the adjustment during work; (2) The illuminated suction device has application limitations in situations such as field operations, power outages in hospitals, and limited primary medical conditions. Summary of the invention

[0007] In response to the problems existing in the above-mentioned prior art, the present invention provides a DC portable negative pressure suction device with follow-up lighting. On the one hand, the lighting module is driven to rotate by the cooperation of the first rotating mechanism and the second rotating mechanism, so that the treatment part can be displayed more completely, thereby improving the safety of treatment; on the other hand, the wind wheel is driven to rotate by the liquid flow to provide power for the small generator, and at the same time, the bevel gear drives the stirring rod to rotate to increase the flow rate, thereby realizing efficient energy recovery and utilization.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is: The present application provides a design of a DC portable negative pressure suction device with follow-up lighting, including an installation box, the front end of which is rotatably connected to a suction tube, and the rear end of the suction tube is sequentially connected to a connecting tube and a liquid storage tank; the front end of the suction tube is installed with a lighting module.

[0009] Furthermore, a first rotating mechanism is provided on the outer side of the liquid storage tank; a second rotating mechanism is provided at the connection between the suction tube and the installation box; a connecting rod for linkage is provided between the first rotating mechanism and the second rotating mechanism; and the connecting rod is rotatably connected to the front end of the installation box.

[0010] Furthermore, the first rotating mechanism includes a protective shell and a control shaft passing through the protective shell; the protective shell is located on the outer side of the liquid storage tank; a worm gear group is provided at one end of the control shaft, and a knob group for controlling the rotation of the worm gear group is provided at the other end; the connecting rod is connected to the worm gear group.

[0011] Furthermore, the second rotating mechanism includes a driving gear and a driven gear meshing with the driving gear; the driving gear is sleeved outside the connecting rod; the rear end of the suction tube is sleeved with an interface, and the interface is sleeved inside the driven gear; and the interface is rotationally connected to the installation box.

[0012] Furthermore, a battery pack is provided outside the installation box, and a small generator for powering the battery pack is also provided inside the installation box; an input shaft of the small generator passes through one end of the liquid storage tank and is provided with a wind wheel; and a plurality of blades are connected to the wind wheel.

[0013] Furthermore, a connecting shaft is rotatably connected inside the liquid storage tank, and the wind wheel is sleeved outside the connecting shaft.

[0014] Furthermore, a driving bevel gear is provided on the connecting shaft; a driven bevel gear is meshed with the driving bevel gear; a stirring rod is rotatably connected in the liquid storage tank, and the stirring rod is sleeved in the driven bevel gear; and a plurality of stirring rods are provided on the stirring rod.

[0015] Furthermore, a filter device is detachably connected to the rear end of the liquid storage tank; the filter device includes a shell connected to the liquid storage tank; a filter plate is rotatably connected inside the shell, and a filter port is provided through the rear end.

[0016] Furthermore, a display screen is provided on the outer side of the installation box; and the lighting module further comprises a camera which is telecommunication-connected to the display screen.

[0017] Furthermore, a negative pressure on-off switch is provided on the outer side wall of the liquid storage tank; and a lighting switch is provided on the outer side wall of the installation box.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. Improve portability and flexibility: The device uses a DC power supply and has a built-in small generator and battery pack, which enables it to work independently without an external power supply, thereby enhancing portability. Through the design of the first rotating mechanism and the second rotating mechanism, coupled with the linkage of the connecting rod, the suction tube can be flexibly rotated to meet the operation requirements at different angles. The suction tube and the installation box, the liquid storage tank and the connecting pipe are all detachably connected, which is convenient for cleaning and replacement, thereby improving the maintenance convenience of the device.

[0019] 2. Enhanced functionality: A lighting module is provided at the head of the suction tube, and its rotation can be controlled by the first rotating mechanism to ensure good lighting conditions when operating at different angles, thereby improving the visibility and accuracy of the operation; a display screen is provided on the outside of the installation box, and a camera connected to the lighting module can display the image of the suction part in real time, making it convenient for the doctor to observe the operation; a display screen is provided on the outside of the installation box, and a camera connected to the lighting module can display the image of the suction part in real time, making it convenient for the doctor to observe the operation.

[0020] 3. Energy saving and consumption reduction: Using liquid flow to drive the generator to store electricity realizes energy recycling, reduces battery consumption, and extends the use time of equipment, which is in line with the concept of green medical care.

[0021] 4. Improved practicality: The design of bevel gear and stirring rod effectively solves the problem of slow flow rate of low temperature or viscous liquid, ensuring the smooth suction process. Through the integrated camera and lighting system, sufficient light and clear images can be provided even in deep or hidden parts, helping medical staff to better expose the surgical area and improve surgical accuracy and safety.

[0022] 5. Improved flexibility: The flap filter at the bottom of the liquid storage tank effectively removes large particles, protects the equipment and reduces the risk of cross infection. At the same time, the interface design of different sizes meets the suction requirements of different types of liquids, improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a right view structural schematic diagram of the present invention; Figure 3 For the present invention Figure 2 Sectional view of the AA plane; Figure 4 For the present invention Figure 3 The enlarged view of point D in the middle; Figure 5 It is a schematic diagram of the internal structure of the present invention; Figure 6 For the present invention Figure 5 The enlarged view of point A in the middle; Figure 7 For the present invention Figure 5 The enlarged view of point B in the middle; Figure 8 It is a schematic diagram of the structure of the first rotating mechanism and the second rotating mechanism in the present invention; Fig. 9 A top view of the suction tube of the present invention; Fig.10 It is a structural schematic diagram of the back side of the present invention; Fig.11 For the present invention Figure 5 Enlarged view of point C in the middle; Fig.12 It is a structural schematic diagram of a small-sized generator and a stirring rod of the present invention; Fig.13 It is a schematic diagram of the structure of the filter plate in the present invention.

[0025] In the figure: 1-installation box; 11-interface; 12-second rotating mechanism; 121-driving gear; 122-driven gear; 13-cover plate; 14-display screen; 15-battery pack; 2-suction tube; 21-through tube; 22-outer tube; 221-lighting module; 222-camera; 23-inner tube; 3-liquid storage tank; 31-first rotating mechanism; 311-protective shell; 312-worm gear group; 313-knob group; 314-small worm; 315-small knob; 316-control shaft; 317-small shaft; 32-connecting rod; 4-connecting pipe; 41-negative pressure pump; 5-small generator; 51-wind wheel; 52-connecting shaft; 53-driving bevel gear; 54-driven bevel gear; 55-input shaft; 56-mounting frame; 6-stirring stick; 61-stirring rod; 7-filter device; 71-housing; 72-filter plate; 722-protrusion; 721-control button; 73-filter port; 74-connector; 8-negative pressure start and close switch; 9-lighting switch. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments.

[0027] In the description of the present invention, it is necessary to understand that the terms "front", "rear", "left", "right", "up", "down", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Embodiment 1

[0029] Combination Figure 1-13 As shown, the present invention provides a DC portable negative pressure suction device with lighting follower, including an installation box 1, characterized in that the front end of the installation box 1 is rotatably connected to a suction tube 2, and the rear end of the suction tube 2 is sequentially connected to a connecting tube 4 and a liquid storage tank 3; the front end of the suction tube 2 is installed with a lighting module 221.

[0030] The suction tube 2 includes a through tube 21 which is rotatably clamped with the interface 11. The front end of the through tube 21 is detachably provided with an outer tube 22. An inner tube 23 is arranged in the cavity of the outer tube 22. Both the through tube 21 and the outer tube 22 are made of medical fiber tubes, and the inner tube 23 is made of disposable medical hose. Figure 4 As shown, the inner diameter of the outer tube 22 is larger than the inner diameter of the through tube 21, and the outer diameters are the same. The end of the through tube 21 is provided with a connection structure for fixing the outer tube 22 and the inner tube 23. The inner tube 23 is plug-in connected to the through tube 21, and the outer tube 22 is rotatably clamped on the through tube 21. The disposable medical hose is a roll, which can be cut as needed when used. It is low in cost, easy to carry, and suitable for use in scenes without sterilization equipment.

[0031] Furthermore, a first rotating mechanism 31 is provided on the outer side of the liquid storage tank 3; a second rotating mechanism 12 is provided at the connection between the suction tube 2 and the installation box 1; a connecting rod 32 for linkage is provided between the first rotating mechanism 31 and the second rotating mechanism 12; the connecting rod 32 is rotatably connected to the front end of the installation box 1, for further supporting the first rotating mechanism 31 and the second rotating mechanism 12, so that the device is more stable.

[0032] Furthermore, the first rotating mechanism 31 includes a protective shell 311 and a control shaft 316 that passes through the protective shell 311; the protective shell 311 is located on the outer side of the liquid storage tank 3 and is fixedly connected to the liquid storage tank 3; a worm gear group 312 is provided at one end of the control shaft 316, and a knob group 313 for controlling the rotation of the worm gear group 312 is provided at the other end; the connecting rod 32 is connected to the worm gear group 312, specifically connected to the turbine, and when the worm rotates, the turbine starts to rotate under the meshing action, causing the connecting rod 32 to rotate accordingly.

[0033] Furthermore, the second rotating mechanism 12 includes a driving gear 121 and a driven gear 122 meshing with the driving gear 121; the driving gear 121 is sleeved outside the connecting rod 32 for fixed connection; the rear end of the suction tube 2 is sleeved with an interface 11, and the interface 11 is sleeved inside the driven gear 122 for fixed connection; and the interface 11 is rotationally connected with the installation box 1, that is, the front end of the interface 11 passes through the installation box 1 and is clamped and connected with the through pipe 21, and the rear end passes through the installation box 1 and is rotationally connected with the connecting pipe 4. When in use, the rotation of the connecting rod 32 drives the driving gear 121 to rotate, and under the meshing action, the driven gear 122 rotates and drives the interface 11 to rotate relative to the installation box 1 and the connecting pipe 4, so that when the suction tube 2 rotates, the liquid storage tank 3 remains stable.

[0034] In this embodiment, a cover plate 13 is further provided on the top of the installation box 1, and the interface 11 passes through the front end of the installation box 1 and is placed inside the cover plate 13; the through pipe 21 passes through the cover plate 13 and is rotatably connected to the cover plate 13, further improving stability. The suction tube 2 is connected to the installation box 1 through the interface 11, so the second rotating mechanism 12 is located inside the installation box 1 and does not contact or rub against the installation box 1, while the liquid storage tank 3 is tightly connected to the rear end of the installation box 1.

[0035] It should be noted that two groups of cameras 222 and lighting lamps are designed at the end of the suction tube 2. There is an electronic control unit under this lighting module 221, which contains a light sensor and an electric adjustment structure. When the medical staff turns the knob group 313 to adjust the angle of the worm gear group 312, its signal is transmitted to the control unit in the integrated circuit through the signal data of the angle sensor and the light sensor. At the same time, the worm gear group 312 transmits the rotational force to the driving gear 121 through the connecting rod 32, and then transmits it to the driven gear 122 through meshing. Since the interface 11 is fixedly connected to the driven gear 122, the suction tube 2 will rotate under the action of the force. When the camera 222 and the lighting lamp of the lighting module 221 adjust their angles by the control unit, the camera 222 and the lighting lamp will also rotate with the rotation of the suction tube 2.

[0036] In addition, the control shaft 316 is a cavity structure, and a small shaft 317 is arranged in the cavity. The small shaft 317 passes through the knob group 313 and is connected to the small knob 315. The small shaft 317 passes through the worm gear group 312 and is provided with a small worm 314. The small worm 314 is provided with a matching turbine. When in use, the lighting lamp and the camera 222 will follow the medical staff to adjust the small knob 315, and the angle sensor will transmit the rotation angle of the small worm 314 to the lighting module 221, so that when the suction tube 2 does not rotate, the lighting system can also illuminate in the blind area.

[0037] Furthermore, a display screen 14 is provided on the outer side of the installation box 1; the lighting module 221 also includes a camera 222 connected to the display screen 14. A negative pressure on-off switch 8 is provided on the outer side wall of the liquid storage tank 3; the negative pressure on-off switch 8 is electrically connected to a negative pressure pump 41, which is connected to the inside of the installation box 1 and electrically connected to the connecting pipe 4. A lighting switch 9 is provided on the outer side wall of the installation box 1.

[0038] Working principle: The battery pack 15 supplies power to the lighting module 221 and the angle sensor. After the inner tube 23 is fixed, turn on the lighting switch 9, apply external force to the knob group 313, and the knob group 313 rotates to drive the angle of the worm gear group 312 on the control shaft 316 to change. The angle sensor on the protective shell 311 transmits the rotation signal to the lighting module 221, and the angle of the camera 222 and the lighting lamp changes. The angle change of the worm gear group 312 generates a rotational force, and the connecting rod 32 transmits the rotational force to the driving gear 121. The rotation of the driven gear 122 drives the suction tube 2 connected to the interface 11 to rotate. The camera 222 is connected to the display screen 14 by telecommunication, so that the blind spot position can be observed at all times. When the negative pressure on-off switch 8 is turned on, negative pressure is generated in the connecting tube 4 when the negative pressure pump 41 is turned on, and suction work can be performed through the inner tube 23. Embodiment 2

[0039] Based on Example 1, refer to Figure 3-13 As shown, in order to further extend the service life of the device, a battery pack 15 is disposed outside the installation box 1, and a small generator 5 for supplying power to the battery pack 15 is disposed inside the installation box 1; an input shaft 55 of the small generator 5 passes through one end of the liquid storage tank 3 and a wind wheel 51 is disposed; and a plurality of blades are connected to the wind wheel 51.

[0040] In this embodiment, the small generator 5 is connected to the inside of the installation box 1 through the mounting frame 56. When liquid flows, the blades are hit by external force to cause the wind wheel 51 to rotate. The wind wheel 51 and the small generator 5 are combined to provide power, which is an existing technology and will not be elaborated in this application.

[0041] Furthermore, a connecting shaft 52 is rotatably connected inside the liquid storage tank 3 , and the wind wheel 51 is sleeved outside the connecting shaft 52 . The rotation of the wind wheel 51 can drive the connecting shaft 52 to rotate.

[0042] Furthermore, a driving bevel gear 53 is provided on the connecting shaft 52; a driven bevel gear 54 is meshedly provided on the driving bevel gear 53; a stirring rod 6 is rotatably connected in the liquid storage tank 3, and the stirring rod 6 is sleeved in the driven bevel gear 54; a plurality of stirring rods 61 are provided on the stirring rod 6.

[0043] The connecting shaft 52 is fixedly connected to the driving bevel gear 53 , and the other end is rotatably supported on the inner side wall of the liquid storage tank 3 .

[0044] Working principle: When the liquid passes through the liquid storage tank 3, it drives the blades of the wind wheel 51 to rotate, thereby driving the generator to charge the dry battery to avoid the problem of no electricity outdoors. A set of bevel gears is designed on the connecting shaft 52 near the wind wheel 51, so that the liquid in the liquid storage tank 3 rotates through the bevel gears to drive the stirring rod 6 to stir the liquid, so that when the external vacuum liquid storage bag is connected, the liquid will not flow slowly due to factors such as low temperature or viscosity, thereby improving work efficiency and ensuring stable power generation. Embodiment 3

[0045] Based on the first and second embodiments, refer to Figure 2-13 As shown, in order to further improve the practicality of the device, the rear end of the liquid storage tank 3 is detachably connected with a filter device 7; the filter device 7 comprises a housing 71 connected to the liquid storage tank 3; a filter plate 72 is rotatably connected inside the housing 71, and a filter port 73 is provided through the rear end.

[0046] In this embodiment, the liquid storage tank 3 can be used as a handle for holding the device, which is convenient for using the device, and the filter device 7 is clamped and installed with the rear end of the liquid storage tank 3, which is convenient for disassembly and installation. Fig.13 As shown, the filter plate 72 is provided with a plurality of through holes to filter out large particles, a protrusion 722 and a control button 721 are respectively provided on both sides of the filter plate 72, and a groove matching the protrusion 722 and a through hole for the control button 721 to pass through are provided on the inner side of the housing 71. Manually rotating the control button 721 can select to lay the filter plate flat for filtering, or rotate the filter plate to ninety degrees without filtering. In addition, two filter ports 73 and connectors 74 of different sizes are designed at the rear end of the filter device 7. When in use, if sputum or viscous liquid is to be attracted, the large connector 74 can be used to connect to the liquid storage bag; if bleeding or other available liquids are to be attracted, the small connector 74 can be used to connect to the liquid storage bag. Specific application cases

[0047] A DC portable negative pressure suction device with follow-up lighting is used at the first aid scene. In the ambulance, the doctor needs to quickly perform negative pressure suction in a mobile environment. The portability and follow-up lighting function of the device are very suitable for such occasions. When performing first aid in the wild or remote areas, this portable device can provide the necessary negative pressure suction function, and it has its own lighting, which is convenient for use in low light conditions. When disasters such as earthquakes and fires occur, first aid personnel need to quickly treat the wounded in a complex environment. The device can provide immediate negative pressure suction support. Used in the operating room, during the operation, the doctor needs to clear the blood and other secretions in the mouth, nose or wound to maintain a clear field of vision. The follow-up lighting and adjustable negative pressure function of the device are very suitable for such needs; during anesthesia, the airway needs to be kept open, and the device can be used to remove respiratory secretions.

[0048] The present application provides a DC portable negative pressure suction device with lighting follower. When the device is used, the specific operation process is as follows: Rotate and clamp the through tube 21 and the interface 11, connect the inner tube 23 and cut the length, and connect the outer tube 22; adjust the negative pressure intensity according to actual needs through the negative pressure start and close switch 8; turn on the lighting switch 9, and adjust the lighting angle to align with the suction part through the first rotating mechanism 31 and the second rotating mechanism 12; bring the head of the inner tube 23 close to the suction part, start the negative pressure suction, and send the liquid or substance to be removed to the liquid storage tank 3 through the connecting tube 4; align the joint 74 with the liquid storage bag to collect; observe the display screen 14 to ensure that the operation is accurate; after completing the suction operation, turn off the negative pressure start and close switch 8 to stop the suction function; disassemble the suction tube 2 for cleaning, and take out the disposable inner tube 23 for disposal.

[0049] In summary, although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A DC portable negative pressure suction device with lighting follow-up, comprising: The installation box (1) is characterized in that the front end of the installation box (1) is rotatably connected to a suction tube (2), and the rear end of the suction tube (2) is sequentially connected to a connecting tube (4) and a liquid storage tank (3); A lighting module (221) is installed at the front end of the suction tube (2).

2. The DC portable negative pressure suction device with lighting follow-up according to claim 1 is characterized in that: A first rotating mechanism (31) is provided on the outer side of the liquid storage tank (3); a second rotating mechanism (12) is provided at the connection between the suction tube (2) and the installation box (1); A connecting rod (32) for linkage is provided between the first rotating mechanism (31) and the second rotating mechanism (12); The connecting rod (32) is rotatably connected to the front end of the installation box (1).

3. The DC portable negative pressure suction device with lighting follow-up according to claim 2 is characterized in that: The first rotating mechanism (31) comprises a protective shell (311) and a control shaft (316) penetrating the protective shell (311); The protective shell (311) is located on the outer side of the liquid storage tank (3); A worm gear group (312) is disposed at one end of the control shaft (316), and a knob group (313) for controlling the rotation of the worm gear group (312) is disposed at the other end; The connecting rod (32) is connected to the worm gear assembly (312).

4. The DC portable negative pressure suction device with lighting follow-up according to claim 3 is characterized in that: The second rotating mechanism (12) comprises a driving gear (121) and a driven gear (122) meshing with the driving gear (121); The driving gear (121) is sleeved outside the connecting rod (32); The rear end of the suction tube (2) is sleeved with an interface (11), the interface (11) being sleeved inside the driven gear (122); and the interface (11) is rotatably connected to the installation box (1).

5. The DC portable negative pressure suction device with lighting follow-up according to claim 1 is characterized in that: A battery pack (15) is disposed outside the installation box (1), and a small generator (5) for supplying power to the battery pack (15) is also disposed inside the installation box (1); An input shaft (55) of the small generator (5) is provided with a wind wheel (51) at one end thereof passing through the liquid storage tank (3); The wind wheel (51) is connected to a plurality of blades.

6. The DC portable negative pressure suction device with lighting follow-up according to claim 5 is characterized in that: A connecting shaft (52) is rotatably connected inside the liquid storage tank (3), and the wind wheel (51) is sleeved outside the connecting shaft (52).

7. The DC portable negative pressure suction device with lighting follow-up according to claim 6 is characterized in that: The connecting shaft (52) is provided with a driving bevel gear (53); The driving bevel gear (53) is meshed with a driven bevel gear (54); A stirring rod (6) is rotatably connected inside the liquid storage tank (3), and the stirring rod (6) is sleeved inside the driven bevel gear (54); The stirring rod (6) is provided with a plurality of stirring rods (61).

8. The DC portable negative pressure suction device with lighting follow-up according to claim 1 is characterized in that: The rear end of the liquid storage tank (3) is detachably connected to a filtering device (7); The filtering device (7) comprises a housing (71) connected to the liquid storage tank (3); A filter plate (72) is rotatably connected inside the housing (71), and a filter port (73) is provided through the rear end.

9. The DC portable negative pressure suction device with lighting follow-up according to claim 1 is characterized in that: The outer side of the installation box (1) is also provided with a display screen (14); The lighting module (221) also includes a camera (222) which is telecommunication-connected to the display screen (14).

10. The DC portable negative pressure suction device with lighting follow-up according to claim 1 is characterized in that: A negative pressure on-off switch (8) is provided on the outer wall of the liquid storage tank (3); and a lighting switch (9) is provided on the outer wall of the installation box (1).

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