A DC portable negative pressure suction device with lighting follow-up

Abstract

The present invention relates to the technical field of medical devices, and particularly to a DC portable negative pressure suction device with lighting and follow-up function, which comprises a mounting box. A suction tube is rotatably connected to the front end of the mounting box. The rear end of the suction tube is sequentially connected with a connecting tube and a liquid storage tank; 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 connection between 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 rotatably connected to the front end of the mounting box. A battery pack is arranged outside the mounting box, and a small generator for powering the battery pack is further arranged inside the mounting box; the input shaft of the small generator is provided with a wind wheel through one end of the liquid storage tank; a plurality of blades are connected to the wind wheel. By the cooperation of the first rotating mechanism and the second rotating mechanism to drive the lighting module to rotate, the treatment part can be more completely displayed, and the safety of treatment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a DC portable negative pressure aspiration device with lighting and follow-up function. Background Art

[0002] The negative pressure aspiration device is a device widely used in the medical field. Various aspirators (including manual and electric), reusable and disposable aspirators, and sputum suction tubes have long been widely used clinically to suck out bleeding, exudates, pus, and contents in thoracic 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 asphyxia and infection. These operations are all carried out and treated indoors with the support of a power source. Therefore, the following problems need to be considered:

[0003] 1. At present, except for simple manual sputum suction devices, all the suction work in hospitals and clinics is powered by alternating current. If operating in the wild or in the event of a power outage in the hospital, these electric aspirators will not work properly. If relying on a generator, diesel supply is also required. However, in the case of a shortage of diesel supply or no generator, the sputum suction for these surgeries or critically ill patients will not be able to be completed, even endangering lives.

[0004] 2. Lighting and aspiration for deep surgeries: Sufficient light is beneficial for the exposure of surgeries. In particular, deep surgeries and the examination and treatment of deep tissues need to be completed with the magnifying effect of a camera, but the surgical operations in hidden areas often cannot be fully displayed due to insufficient light.

[0005] 3. It is inconvenient to disinfect ships and field instruments. Disposable suction tubes can be designed to avoid inconvenience in disinfection and cross-infection.

[0006] The Chinese patent with the authorization announcement number CN217853992U discloses a lighting aspirator, including a suction tube. The tail end of the suction tube is fixedly connected to the head of a hollow handle. The suction tube is made of a transparent material, and several uniformly distributed transparent light guide fiber tubes and a plastic wire are embedded inside the suction tube. A light-emitting body is embedded in the head of the hollow handle. 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. The negative pressure device is connected to a foot-operated negative pressure start switch through a wire. The present invention provides an aspirator that can adjust the bending arc of the suction tube and is convenient for lighting.

[0007] However, the above-mentioned lighting suction device still has the following problems when in use: (1) The lighting suction device adjusts the arc of the head of the suction tube by setting a wire. When adjusting the arc, it can only be adjusted before use, and it is very difficult to grasp the accuracy of adjustment during work; (2) The lighting suction device has application limitations in situations such as field operations, hospital power outages, and limited grass-roots medical conditions. Summary of the Invention

[0008] In view of the problems existing in the above-mentioned prior art, the present invention provides a DC portable negative pressure suction device with lighting and follow-up function. 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 is more completely displayed, improving the safety of treatment; on the other hand, the liquid flow drives the wind wheel to rotate 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, realizing the efficient recovery and utilization of energy.

[0009] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0010] The present application provides a design of a DC portable negative pressure suction device with lighting and follow-up function, including an installation box. The front end of the installation box is rotatably connected with a suction tube, and the rear end of the suction tube is sequentially connected with a connecting tube and a liquid storage tank; a lighting module is installed at the front end of the suction tube.

[0011] Furthermore, a first rotating mechanism is provided on the outer side surface 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; the connecting rod is rotatably connected with the front end of the installation box.

[0012] 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 surface of the liquid storage tank; one end of the control shaft is provided with a worm and worm gear set, and the other end is provided with a knob set for controlling the rotation of the worm and worm gear set; the connecting rod is connected with the worm and worm gear set.

[0013] 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; an interface is sleeved at the rear end of the suction tube, and the interface is sleeved inside the driven gear; and the interface is rotatably connected with the installation box.

[0014] 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; a wind wheel is provided at one end of the input shaft of the small generator passing through the liquid storage tank; a plurality of blades are connected to the wind wheel.

[0015] Furthermore, a connecting shaft is rotatably connected inside the liquid storage tank, and the wind wheel is sleeved outside the connecting shaft.

[0016] 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 inside the liquid storage tank, and the stirring rod is sleeved inside the driven bevel gear; a plurality of stirring rods are provided on the stirring rod.

[0017] Furthermore, a filtering device is detachably connected to the rear end of the liquid storage tank; the filtering device includes a housing communicated with the liquid storage tank; a filter plate is rotatably connected inside the housing, and a filtering port is provided at the rear end through which it penetrates.

[0018] Furthermore, a display screen is also provided on the outer side surface of the installation box; the lighting module further includes a camera electrically connected to the display screen.

[0019] Furthermore, a negative pressure opening and closing switch is provided on the outer side wall of the liquid storage tank; a lighting switch is provided on the outer side wall of the installation box.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. Improve portability and flexibility: The device uses a DC power supply, with a built-in small generator and battery pack, enabling it to work independently without an external power supply, enhancing portability; through the design of the first rotating mechanism and the second rotating mechanism, combined with the linkage effect of the connecting rod, the suction tube can rotate flexibly to adapt to the operation requirements at different angles; the suction tube is detachably connected to the installation box, and the liquid storage tank is detachably connected to the connecting pipe, facilitating cleaning and replacement, and improving the maintenance convenience of the device.

[0022] 2. Enhance functionality: The head of the suction tube is provided with a lighting module, which can be controlled to rotate by the first rotating mechanism to ensure good lighting conditions during operations at different angles, improving the visibility and accuracy of operations; a display screen is provided on the outer side of the installation box, and the camera connected to the lighting module can display the picture of the suction part in real time, facilitating doctors to observe the operation situation; a display screen is provided on the outer side of the installation box, and the camera connected to the lighting module can display the picture of the suction part in real time, facilitating doctors to observe the operation situation.

[0023] 3. Energy saving and consumption reduction: Using the liquid flow to drive the generator to store electricity realizes the recycling of energy, reduces battery consumption, extends the service time of the device, and conforms to the concept of green medical treatment.

[0024] 4. Improve practicality: The design of the bevel gear and the stirring rod effectively solves the problem of slow flow rate of low-temperature or viscous liquids, ensuring the smooth progress of the suction process. With the integrated camera and lighting system, sufficient light and clear images can be provided even in deep or hidden parts, helping medical staff better expose the surgical area and improving the surgical precision and safety.

[0025] 5. Improve 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

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic structural diagram of the present invention;

[0028] Figure 2 It is a schematic right view structural diagram of the present invention;

[0029] Figure 3 For the present invention Figure 2 A cross-sectional view taken along the A-A plane in;

[0030] Figure 4 For the present invention Figure 3 An enlarged view at D in;

[0031] Figure 5 It is a schematic internal structure diagram of the figure of the present invention;

[0032] Figure 6 For the present invention Figure 5 An enlarged view at A in;

[0033] Figure 7 For the present invention Figure 5 An enlarged view at B in;

[0034] Figure 8 It is a schematic structural diagram of the first rotating mechanism and the second rotating mechanism in the present invention;

[0035] Figure 9 It is a top view of the suction tube in the present invention;

[0036] Figure 10 It is a schematic structural diagram of the back of the present invention;

[0037] Figure 11 For the present invention Figure 5 An enlarged view of part C in the present invention;

[0038] Figure 12 A schematic structural diagram of a small generator and a stirring rod in the present invention;

[0039] Figure 13 A schematic structural diagram of a filter plate in the present invention.

[0040] In the figure: 1 - mounting box; 11 - interface; 12 - second rotating mechanism; 121 - driving gear; 122 - driven gear; 13 - cover plate; 14 - display screen; 15 - battery pack; 2 - suction pipe; 21 - through pipe; 22 - outer pipe; 221 - lighting module; 222 - camera; 23 - inner pipe; 3 - liquid storage tank; 31 - first rotating mechanism; 311 - protective shell; 312 - worm and worm gear set; 313 - knob set; 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 bracket; 6 - stirring rod; 61 - stirring rod; 7 - filtering device; 71 - housing; 72 - filter plate; 722 - protrusion; 721 - control button; 73 - filtering port; 74 - joint; 8 - negative pressure opening and closing switch; 9 - lighting switch. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments, rather than all the embodiments.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is 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 should not be construed as a limitation to the present invention.

[0043] In the description of the present application, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations. Embodiment 1

[0044] Combined Figures 1-13 As shown, the present invention provides a DC portable negative pressure suction device with lighting follow-up, including a mounting box 1, characterized in that a suction tube 2 is rotatably connected to the front end of the mounting box 1, and a connecting tube 4 and a liquid storage tank 3 are sequentially connected to the rear end of the suction tube 2; a lighting module 221 is installed at the front end of the suction tube 2.

[0045] The suction tube 2 includes a through tube 21 rotatably clamped with an interface 11, an outer tube 22 is detachably installed at the front end of the through tube 21, and 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 a disposable medical hose; as Figure 4 shown, the inner diameter of the outer tube 22 is larger than that of the through tube 21, and the outer diameters are the same. A connecting structure for fixing the outer tube 22 and the inner tube 23 is arranged at the end of the through tube 21. The inner tube 23 is connected to the through tube 21 in a plug-and-play manner, and the outer tube 22 is rotatably clamped on the through tube 21. The disposable medical hose is in a roll and can be cut according to needs during use, with low cost, convenient to carry, and suitable for use in scenarios without disinfection equipment.

[0046] Further, a first rotating mechanism 31 is arranged on the outer side surface of the liquid storage tank 3; a second rotating mechanism 12 is arranged at the connection between the suction tube 2 and the mounting box 1; a connecting rod 32 for linkage is arranged 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 mounting box 1 for further supporting the first rotating mechanism 31 and the second rotating mechanism 12 to make the device more stable.

[0047] Further, the first rotating mechanism 31 includes a protective shell 311 and a control shaft 316 passing through the protective shell 311; the protective shell 311 is located on the outer side surface of the liquid storage tank 3 and is fixedly connected to the liquid storage tank 3; one end of the control shaft 316 is provided with a worm and gear set 312, and the other end is provided with a knob set 313 for controlling the rotation of the worm and gear set 312; the connecting rod 32 is connected to the worm and gear set 312, specifically connected to the gear. When the worm rotates, the gear starts to rotate under the meshing action, causing the connecting rod 32 to rotate accordingly.

[0048] Further, 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 and is fixedly connected; 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 and is fixedly connected; and the interface 11 is rotatably connected to the mounting box 1, that is, the front end of the interface 11 passes through the mounting box 1 and is tightly connected to the through tube 21 in a clamping manner, and the rear end passes through the mounting box 1 and is rotatably connected to the connecting tube 4. During use, the rotation of the connecting rod 32 drives the rotation of the driving gear 121. Under the meshing action, the driven gear 122 rotates and drives the interface 11 to rotate relative to the mounting box 1 and the connecting tube 4, so that when the suction tube 2 rotates, the liquid storage tank 3 remains stable.

[0049] In this embodiment, a cover plate 13 is further provided on the top of the mounting box 1. The front end of the interface 11 passes through the mounting box 1 and is placed inside the cover plate 13; the through tube 21 passes through the cover plate 13 and is rotatably connected to the cover plate 13, further improving the stability. The suction tube 2 is connected to the mounting box 1 through the interface 11. Therefore, the second rotating mechanism 12 is located inside the mounting box 1 and does not contact the mounting box 1, without friction, while the liquid storage tank 3 is tightly connected to the rear end of the mounting box 1.

[0050] 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 rotates the knob group 313 to adjust the angle of the worm and worm gear group 312, its signal and the signal data of the light sensor are transmitted to the control unit in the integrated circuit. At the same time, the worm and 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 force. So that while the control unit adjusts the angle of the cameras 222 and lighting lamps of the lighting module 221, the cameras 222 and lighting lamps will also rotate following the rotation of the suction tube 2.

[0051] In addition, the control shaft 316 is of a cavity structure. A small shaft 317 is provided in the cavity. One end of the small shaft 317 passing through the knob group 313 is connected with a small knob 315, and a small worm 314 is provided at the end passing through the worm and worm gear group 312. A matching turbine is provided on the small worm 314. During use, when the medical staff adjusts the small knob 315, the lighting lamps and the cameras 222 will rotate. The angle sensor transmits 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.

[0052] Further, a display screen 14 is also provided on the outer side surface of the installation box 1; the lighting module 221 further includes a camera 222 that is telecommunication-connected to the display screen 14. A negative pressure opening and closing switch 8 is provided on the outer side wall of the liquid storage tank 3; the negative pressure opening and closing switch 8 is electrically connected to a negative pressure pump 41, the negative pressure pump 41 is connected to the inside of the installation box 1 and is electrically connected to the connecting pipe 4, and a lighting switch 9 is provided on the outer side wall of the installation box 1.

[0053] Working principle: The battery pack 15 supplies power to the lighting module 221 and the angle sensor. After fixing the inner tube 23, turn on the lighting switch 9, apply an external force to the knob group 313, the knob group 313 rotates to drive the angle change of the worm and gear group 312 on the control shaft 316, and the angle sensor on the protective shell 311 transmits the rotation signal to the lighting module 221, and the angles of the camera 222 and the lighting lamp change. The angle change of the worm and gear group 312 generates a rotational force, and the connecting rod 32 transmits the rotational force to the driving gear 121, and the driven gear 122 rotates to drive the suction tube 2 connected to the interface 11 to rotate. Through the telecommunication connection between the camera 222 and the display screen 14, the blind area position can be observed at all times. Turn on the negative pressure opening and closing switch 8, and the negative pressure pump 41 generates negative pressure in the connecting pipe 4, and then the suction work can be carried out through the inner tube 23. Embodiment 2

[0054] On the basis of Embodiment 1, referring to Figures 3-13 As shown, in order to further extend the service time of the device. A battery pack 15 is provided outside the installation box 1, and a small generator 5 for supplying power to the battery pack 15 is also provided inside the installation box 1; a wind wheel 51 is provided at one end where the input shaft 55 of the small generator 5 passes through the liquid storage tank 3; a plurality of blades are connected to the wind wheel 51.

[0055] In this embodiment, the small generator 5 is connected to the inside of the installation box 1 through a mounting bracket 56. When there is liquid flow, the blades are hit by an external force to make the wind wheel 51 rotate. The combination of the wind wheel 51 and the small generator 5 for power supply is a prior art, and this application will not elaborate.

[0056] Further, a connecting shaft 52 is rotatably connected inside the liquid storage tank 3, the wind wheel 51 is sleeved outside the connecting shaft 52, and the rotation of the wind wheel 51 can drive the connecting shaft 52 to rotate.

[0057] Further, a driving bevel gear 53 is provided on the connecting shaft 52; a driven bevel gear 54 is meshed with the driving bevel gear 53; a stirring rod 6 is rotatably connected inside the liquid storage tank 3, the stirring rod 6 is sleeved inside the driven bevel gear 54; a plurality of stirring rods 61 are provided on the stirring rod 6.

[0058] 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.

[0059] 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, avoiding the problem of running out of power outdoors. A set of bevel gears is designed at a position on the connecting shaft 52 close to the wind wheel 51, so that the liquid in the liquid storage tank 3 drives the stirring rod 6 to rotate through the bevel gears, making the liquid not flow slowly due to factors such as low temperature or viscosity when connecting to an external vacuum liquid storage bag, improving the working efficiency and ensuring stable power generation. Embodiment III

[0060] Based on Embodiment I and Embodiment II, referring to Figures 2-13 As shown, in order to further improve the practicability of the device. A filtering device 7 is detachably connected to the rear end of the liquid storage tank 3; the filtering device 7 includes a housing 71 communicated with the liquid storage tank 3; a filter plate 72 is rotatably connected inside the housing 71, and a filtering port 73 is provided through the rear end.

[0061] In this embodiment, the liquid storage tank 3 can be used as a handle for holding, which is convenient to use the device. And the filtering device 7 is tightly clamped and installed at the rear end of the liquid storage tank 3, which is convenient for disassembly and installation. As Figure 13 shown, a number of through holes are provided on the filter plate 72 to filter out large particles. A protrusion 722 and a control button 721 are respectively provided at both ends of the filter plate 72. A groove matching the protrusion 722 and a through hole for the control button 721 to pass through are provided on the inner side surface of the housing 71. Manually rotating the control button 721 can choose to lay the filter plate flat for filtering use, or rotate the filter plate to 90 degrees without filtering use. In addition, two filtering ports 73 and connectors 74 with different sizes are designed at the rear end of the filtering device 7. When in use, if attracting sputum or viscous liquid, the large connector 74 can be used to connect the liquid storage bag; if attracting bleeding or other available liquid, the small connector 74 can be used to connect the liquid storage bag.

[0062] Specific application cases

[0063] A DC portable negative pressure suction device with follow-up lighting is used at the first aid scene. In an ambulance, doctors need to quickly perform negative pressure suction in a mobile environment. The portability and follow-up lighting function of this 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 has its own lighting, which is convenient to use in case of insufficient light. When disasters such as earthquakes and fires occur, first aid personnel need to quickly treat the wounded in a complex environment, and this device can provide immediate negative pressure suction support. It is used in the operating room. During the operation, doctors need to remove blood and other secretions from the oral cavity, nasal cavity or wound to keep the field of vision clear. The follow-up lighting and adjustable negative pressure functions of this device are very suitable for such needs; during anesthesia, it is necessary to keep the respiratory tract unobstructed, and this device can be used to aspirate respiratory secretions.

[0064] This application provides a DC portable negative pressure suction device with follow-up lighting. When the device is in use, the specific operation process is as follows:

[0065] Rotate and tightly fasten the connecting pipe 21 with the interface 11, connect the inner pipe 23 and cut its length, and connect the outer pipe 22; according to actual needs, adjust the negative pressure intensity through the negative pressure opening and closing switch 8; turn on the lighting switch 9, and adjust the angle of the lighting to align with the suction part through the first rotating mechanism 31 and the second rotating mechanism 12; bring the head of the inner pipe 23 close to the part to be suctioned, start the negative pressure suction, and send the liquid or substance to be removed to the liquid storage tank 3 through the connecting pipe 4; collect it with the liquid storage bag aligned with the joint 74; observe the display screen 14 to ensure the operation is accurate; after completing the suction operation, turn off the negative pressure opening and closing switch 8 to stop the suction function; remove the suction pipe 2 for cleaning, and take out and dispose of the disposable inner pipe 23.

[0066] In summary, although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present invention. 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: Installation box (1), characterized in that a suction pipe (2) is rotatably connected to the front end of the installation box (1), and a connecting pipe (4) and a liquid storage tank (3) are sequentially connected to the rear end of the suction pipe (2); A lighting module (221) is installed at the front end of the suction pipe (2); A battery pack (15) is provided outside the installation box (1), and a small generator (5) for powering the battery pack (15) is further provided inside the installation box (1); a wind wheel (51) is arranged at one end of the input shaft (55) of the small generator (5) passing through the liquid storage tank (3); a plurality of blades are connected to the wind wheel (51); 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); A driving bevel gear (53) is provided on the connecting shaft (52); a driven bevel gear (54) is meshed with the driving bevel gear (53); 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); a plurality of stirring rods (61) are provided on the stirring rod (6); A first rotating mechanism (31) is provided on the outer side surface of the liquid storage tank (3); a second rotating mechanism (12) is provided at the connection between the suction pipe (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); The first rotating mechanism (31) includes a protective shell (311) and a control shaft (316) penetrating through the protective shell (311); the protective shell (311) is located on the outer side surface of the liquid storage tank (3); a worm and gear set (312) is arranged at one end of the control shaft (316), and a knob set (313) for controlling the rotation of the worm and gear set (312) is arranged at the other end; the connecting rod (32) is connected to the worm and gear set (312); The control shaft (316) is of a cavity structure, and a small shaft (317) is arranged in the cavity; One end of the small shaft (317) passing through the knob set (313) is connected with a small knob (315), and a small worm (314) is arranged at the end passing through the worm and gear set (312), and a matching turbine is arranged on the small worm (314).

2. The DC portable negative pressure suction device with lighting follow-up according to claim 1, characterized in that, 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); An interface (11) is sleeved at the rear end of the suction pipe (2), and the interface (11) is sleeved inside the driven gear (122); and the interface (11) is rotatably connected to the installation box (1).

3. The DC portable negative pressure suction device with lighting follow-up according to claim 1, characterized in that, A filtering device (7) is detachably connected to the rear end of the liquid storage tank (3); The filtering device (7) includes a housing (71) communicated with the liquid storage tank (3); A filter plate (72) is rotatably connected inside the housing (71), and a filter port (73) is provided at the rear end penetrating through; 4. The DC portable negative pressure suction device with lighting follow-up according to claim 1, characterized in that, A display screen (14) is further provided on the outer side surface of the installation box (1); The lighting module (221) further includes a camera (222) that is telecommunicatively connected to the display screen (14).

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

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