Hat lamp for blood drawing at night

Abstract

The invention discloses a cap lamp for blood drawing at night, and belongs to the field of medical auxiliary equipment. A cap lamp for blood drawing at night comprises a cap body, a visor and a mounting seat, and further comprises a dismounting and mounting mechanism arranged between the visor and the mounting seat and used for dismounting and mounting the mounting seat; the angle adjusting unit is arranged on the mounting seat and can rotate relative to the mounting seat; wherein a base is arranged on the adjusting unit, a protective cover is connected to the base, a range adjusting unit is arranged in the protective cover and used for adjusting the irradiation range of light rays, and the range adjusting unit is communicated with the angle adjusting unit through a pipeline; the problems that a lamp is turned on during blood drawing at night, the rest of a patient is affected, observation and judgment of medical staff on blood vessels of the patient are affected, pain and discomfort of the patient are easily caused, and the infection risk of the patient is increased can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, and in particular to a hat light for nighttime blood drawing. Background Art

[0002] According to the patient's condition, if special examinations or blood draws are required, such as measuring blood sugar and insulin levels, electrolytes, liver function indicators, kidney function indicators, blood gas analysis, etc., blood can be drawn from the patient at night. This is helpful for understanding the patient's condition and adjusting subsequent treatment methods according to the patient's physical condition to avoid delaying treatment. Since the light is weak at night, it is necessary to turn on the lights in the ward and the patient's bedside lamp.

[0003] Currently, patients need to frequently turn on lights for blood draws at night, which will seriously affect the rest of other patients in the same ward and is not conducive to the patient's recovery. In addition, since the light from the lights and bedside lamps is weak, it affects the medical staff's observation and judgment of the patient's blood vessels. Multiple injections may be required for blood draws, especially for patients with thinner blood vessels. This will cause patients a certain amount of pain and discomfort, and increase the risk of infection. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that turning on the light for blood drawing at night affects the patient's rest, affects the medical staff's observation and judgment of the patient's blood vessels, easily causes pain and discomfort to the patient, and increases the risk of infection for the patient. A hat light for blood drawing at night is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A hat light for nighttime blood drawing comprises a hat body, a brim and a mounting seat, and further comprises: a disassembly and assembly mechanism arranged between the brim and the mounting seat, for disassembly and assembly of the mounting seat; an angle adjustment unit arranged on the mounting seat, and the angle adjustment unit can rotate relative to the mounting seat; wherein the adjustment unit is provided with a base, the base is connected with a protective cover, a range adjustment unit is arranged inside the protective cover, for adjusting the irradiation range of the light, and the range adjustment unit is connected to the angle adjustment unit through a pipeline.

[0007] In order to facilitate the disassembly and assembly of the lamp tube, preferably, the disassembly and assembly mechanism includes a buckle fixedly connected to the brim of the hat, and a clip matching the buckle is fixedly connected to the mounting seat, wherein the brim of the hat is arranged in an arc shape, and the side of the mounting seat close to the clip is arranged in an arc shape and matches the brim of the hat.

[0008] In order to facilitate the adjustment of the angle of the light, preferably, the angle adjustment unit includes a fixed plate fixedly connected to the mounting base, a rotating plate rotatably connected to the fixed plate, and multiple groups of protrusions are provided on the side where the rotating plate and the fixed plate are close to each other, wherein the outer wall of the fixed plate is in contact with the inner wall of the rotating plate, the protrusions on the fixed plate and the rotating plate are staggered, and a gravity control mechanism is provided between the fixed plate and the rotating plate.

[0009] In order to facilitate the automatic positioning of light during blood drawing, the gravity control mechanism further includes an installation groove and a groove opened on the side of the fixed disk close to the rotating disk, the interior of the installation groove is fixedly connected with a telescopic rod rotatably connected to the rotating disk, the outer wall of the telescopic rod is connected with an air intake pipe and a pressure relief pipe, the interior of the telescopic rod is fixedly connected with a sealing plate, the sealing plate is provided with an electromagnetic valve, the interior of the groove is provided with a gravity ball, the side of the groove away from the installation groove is provided with a control switch, the control switch and the electromagnetic valve are electrically connected, wherein the axis of the installation groove is located on the same straight line as the axis of the fixed disk and the rotating disk, the air intake pipe is provided with a one-way valve, and the pressure relief pipe is provided with a pressure relief valve.

[0010] In order to facilitate the irradiation range of light, further, a conical lampshade is connected to the outer wall of the protective cover, a cylindrical lampshade is fixedly connected to the inside of the protective cover, the conical lampshade is connected to the cylindrical lampshade, and a lamp shell is provided at one end of the conical lampshade away from the cylindrical lampshade.

[0011] In order to facilitate the adjustment of the distance between the lamp tube and the conical lampshade and the cylindrical lampshade, further, the range adjustment unit includes a screw rod rotatably connected to the inside of the protective cover, a movable cylinder is threadedly connected to the screw rod, and the outer wall of the movable cylinder is symmetrically fixedly connected with a fixed block, a cylinder is connected between the fixed block and the cylindrical lampshade, and the end of the movable cylinder away from the screw rod is fixedly connected to a connecting rod, and the end of the connecting rod away from the movable cylinder is fixedly connected to the lamp tube, wherein the cylindrical lampshade is sleeved on the outside of the movable cylinder and the lamp tube, and the end of the screw rod away from the lamp tube extends to the outside of the protective cover, and the end of the screw rod away from the lamp tube is fixedly connected to a knob rotatably connected to the protective cover, and the output end of the cylinder is connected to the air intake pipe through a pipe.

[0012] In order to ensure the stability of the lamp tube's irradiation, it further includes a plurality of battery groups fixedly connected to the inner wall of the protective cover, the battery and the lamp tube are electrically connected through a circuit, and the circuit passes through the gap between the movable tube and the cylindrical lamp cover.

[0013] In order to facilitate the adjustment of the light angle and improve the stability of the light, further, the protrusions are arranged in a semicircular shape and are made of elastic material, and the distance between two adjacent groups of the protrusions matches the size of the protrusions.

[0014] In order to improve the stability of light when drawing blood without lowering the head, there is further friction between the gravity ball and the groove, and the groove is arranged parallel to the brim. When the brim is tilted at a certain angle, the gravity ball moves along the groove toward the control switch.

[0015] In order to improve the stability of the lamp tube during use, preferably, the cap body is in a hollow hemispherical shape, and a brim is fixedly connected to the side of the cap body close to the opening, and the visor is fixedly connected to the cap body and the brim.

[0016] Compared with the prior art, the present invention provides a hat light for nighttime blood drawing, which has the following beneficial effects:

[0017] 1. The hat light for nighttime blood drawing can be quickly disassembled and assembled through the disassembly and assembly mechanism. It can not only be used when drawing blood, but also can be used as a dress-up, to protect hairstyle, etc., which improves the practicality of the hat and facilitates the maintenance, charging and replacement of the equipment.

[0018] 2. The hat light for nighttime blood drawing can adjust the light irradiation angle through the angle adjustment unit, so as to facilitate blood drawing from patients at different angles. At the same time, it can automatically adjust its angle when the patient is lying in bed, which not only makes the operation easier, but also improves the accuracy of light irradiation.

[0019] 3. The hat light for nighttime blood drawing can adjust the range of light through the range adjustment unit. On the one hand, it can reduce the impact of light on other patients. On the other hand, it can adjust the clarity of the patient's blood vessels to facilitate medical staff to observe and judge the patient's blood vessels, thereby reducing the number of needle sticks, reducing the patient's pain and discomfort, and reducing the risk of infection in the patient.

[0020] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The present invention can overcome the problems that turning on the light for blood drawing at night affects the patient's rest, affects the medical staff's observation and judgment of the patient's blood vessels, easily causes pain and discomfort to the patient, and increases the risk of infection for the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a hat light for nighttime blood drawing proposed by the present invention. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the structure of a hat light for nighttime blood drawing proposed by the present invention. Figure 2 .

[0023] Figure 3 A partial structural diagram of a hat light for nighttime blood drawing proposed by the present invention Figure 1.

[0024] Figure 4 A partial structural diagram of a hat light for nighttime blood drawing proposed by the present invention Figure 2 .

[0025] Figure 5 The present invention is a schematic diagram of the upward structure of a mounting base in a cap lamp for nighttime blood drawing.

[0026] Figure 6 The present invention provides a schematic diagram of the partial cross-sectional structure of a fixed disk and a rotating disk in a hat light for nighttime blood drawing.

[0027] Figure 7 The present invention is a schematic structural diagram of a fixed disk and a rotating disk of a hat light for nighttime blood drawing.

[0028] Figure 8 The present invention is a schematic diagram of a partial cross-sectional structure of a protective cover in a hat light for nighttime blood drawing.

[0029] Fig. 9 A hat light for nighttime blood drawing proposed by the present invention Figure 6 Schematic diagram of the structure of part A in .

[0030] In the figure: 1. hat body; 2. hat brim; 3. hat visor; 4. top buckle; 5. pressure strip; 6. hat hole; 7. Velcro; 8. buckle; 9. mounting seat; 10. clamping strip; 11. fixing plate; 12. rotating plate; 13. protrusion; 14. mounting groove; 15. telescopic rod; 16. air inlet pipe; 17. pressure relief pipe; 18. sealing plate; 19. solenoid valve; 20. groove; 21. gravity ball; 22. control switch; 23. base; 24. protective cover; 25. conical lampshade; 26. lamp housing; 27. battery; 28. screw; 29. ​​knob; 30. cylindrical lampshade; 31. cylinder; 32. movable cylinder; 33. fixing block; 34. connecting rod; 35. lamp tube. DETAILED DESCRIPTION

[0031] 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 part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "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.

[0033] Example:

[0034] Reference Figure 1-Figure 9 A hat lamp for nighttime blood drawing comprises a hat body 1, a visor 3 and a mounting seat 9. The hat body 1 is in a hollow hemispherical shape, and a brim 2 is fixedly connected to the side of the hat body 1 close to the opening. The brim 2 is made of elastic material so as to be suitable for medical staff with different head circumferences. The brim 3 is fixedly connected to the hat body 1 and the brim 2. A layer of plastic is generally added inside the brim 3 to improve the rigidity of the brim 3. A top buckle 4 is arranged at the center of the top of the hat body 1. A plurality of groups of pressure strips 5 connected to the top buckle 4 are fixedly connected to the outer wall of the hat body 1. Since the hat body 1 is usually made of multiple pieces of material, the top buckle 4 and the pressure strips 5 are used to connect the multiple pieces of material and can also play a certain supporting role. A hat hole 6 is arranged on the side of the hat body 1 away from the brim 3. This is to facilitate female medical staff to take the braids out of the hat body 1 and improve the stability of the hat body 1 when in use. A Velcro 7 is provided on the side of the brim 2 close to the hat hole 6 for adjusting the size of the brim 2, which is suitable for medical staff with different head circumferences. It also includes: a disassembly and assembly mechanism arranged between the visor 3 and the mounting seat 9, for disassembly and assembly of the mounting seat 9; an angle adjustment unit arranged on the mounting seat 9, and the angle adjustment unit can rotate relative to the mounting seat 9; wherein a base 23 is provided on the adjustment unit, a protective cover 24 is connected to the base 23, and a range adjustment unit is provided inside the protective cover 24 for adjusting the irradiation range of light, and the range adjustment unit is connected to the angle adjustment unit through a pipeline.

[0035] Reference Figure 3 and Figure 5 The disassembly and assembly mechanism includes a buckle 8 fixedly connected to the brim 3, and a clip 10 matching the buckle 8 is fixedly connected to the mounting seat 9, wherein the brim 3 is arranged in an arc shape, and the side of the mounting seat 9 close to the clip 10 is arranged in an arc shape and matches the brim 3.

[0036] The specific structure of the buckle 8 and the clip strip 10 can refer to the technical solutions in the prior art, which can be known to those skilled in the art and will not be elaborated here. In addition, it should be explained that the buckle 8 has a certain elasticity. When the clip strip 10 is installed on the buckle 8, the buckle 8 will make the clip strip 10 fit tightly against the brim 3 and make the mounting seat 9 fit against the brim 3, thereby improving the stability of the device when in use.

[0037] Reference Figure 7The angle adjustment unit includes a fixed disk 11 fixedly connected to the mounting seat 9, a rotating disk 12 is rotatably connected to the fixed disk 11, and a plurality of groups of protrusions 13 are arranged on the side where the rotating disk 12 and the fixed disk 11 are close to each other, wherein the outer wall of the fixed disk 11 fits with the inner wall of the rotating disk 12, and the protrusions 13 on the fixed disk 11 and the rotating disk 12 are staggered, and a gravity control mechanism is arranged between the fixed disk 11 and the rotating disk 12, the protrusions 13 are arranged in a semicircular shape and are made of elastic material, and the distance between two adjacent groups of protrusions 13 matches the size of the protrusions 13.

[0038] When adjusting the angle between the rotating disk 12 and the fixed disk 11, when the pressure between adjacent protrusions 13 reaches a certain value, the protrusions 13 can pass over the adjacent protrusions 13, thereby achieving the purpose of adjusting the angle. When no external force is applied, the protrusions 13 can limit the rotating disk 12 and the fixed disk 11, thereby improving the stability of the equipment during use.

[0039] Reference Figure 6 , Figure 7 and Fig. 9 The gravity control mechanism includes a mounting groove 14 and a groove 20 which are provided on a side of the fixed disk 11 close to the rotating disk 12. A telescopic rod 15 which is rotatably connected to the rotating disk 12 is fixedly connected inside the mounting groove 14. An air intake pipe 16 and a pressure relief pipe 17 are communicated with the outer wall of the telescopic rod 15. A sealing plate 18 is fixedly connected inside the telescopic rod 15. A solenoid valve 19 is arranged on the sealing plate 18. A gravity ball 21 is arranged inside the groove 20. A control switch 22 is arranged on the side of the groove 20 away from the mounting groove 14. The control switch 22 is electrically connected to the solenoid valve 19. The axis of the mounting groove 14 is on the same straight line as the axis of the fixed disk 11 and the rotating disk 12. A one-way valve is arranged on the air intake pipe 16. A pressure relief valve is arranged on the pressure relief pipe 17. There is friction between the gravity ball 21 and the groove 20. The groove 20 is arranged parallel to the brim 3. When the brim 3 is tilted at a certain angle, the gravity ball 21 moves along the groove 20 toward the control switch 22.

[0040] When the medical staff draws blood from the patient (generally, when the medical staff draws blood from the patient, they usually need to lower their heads to look at the blood vessels where the blood is drawn from the patient), the control switch 22 is triggered by the gravity ball 21 to open the solenoid valve 19. It should be explained that the sealing plate 18 divides the space in the telescopic rod 15 into two accommodating spaces, one with a fixed volume and the other with a variable volume. The air inlet pipe 16 and the pressure relief pipe 17 are both connected to the accommodating space with a fixed volume. The solenoid valve 19 is used to connect the two accommodating spaces. In addition, a tiny hole is provided on one side of the telescopic rod 15 close to the accommodating space with a variable volume, which is used for automatic discharge of the gas in the accommodating space. When in use, the pressure in the accommodating space with a fixed volume is higher than the pressure in the accommodating space with a variable volume. When the solenoid valve 19 is opened, the high-pressure gas will enter the accommodating space with a variable volume, driving the telescopic rod 15 to extend outward, so that the protrusion 13 on the rotating disk 12 is separated from the protrusion 13 on the fixed disk 11. As the light is irradiated in the direction where the medical staff lowers their heads under the action of gravity, the light is automatically positioned.

[0041] Reference Figure 8 A conical lampshade 25 is connected to the outer wall of the protective cover 24, a cylindrical lampshade 30 is fixedly connected to the inside of the protective cover 24, the conical lampshade 25 is connected to the cylindrical lampshade 30, and a lamp housing 26 is provided at one end of the conical lampshade 25 away from the cylindrical lampshade 30.

[0042] By adjusting the position of the lamp tube 35 in the cylindrical lampshade 30 and the conical lampshade 25, the irradiation range and focusing degree of the light can be adjusted. On the one hand, the impact of the light on the patient can be reduced, and on the other hand, the clarity of the patient's blood vessels can be improved to facilitate medical staff to draw blood from the patient. The lamp housing 26 is made of glass material, which has a protective effect on the lamp tube 35.

[0043] Reference Figure 8 The range adjustment unit includes a screw rod 28 rotatably connected to the inside of the protective cover 24, a movable cylinder 32 is threadedly connected to the screw rod 28, a fixed block 33 is symmetrically fixedly connected to the outer wall of the movable cylinder 32, a cylinder 31 is connected between the fixed block 33 and the cylindrical lampshade 30, a connecting rod 34 is fixedly connected to the end of the movable cylinder 32 away from the screw rod 28, and a lamp tube 35 is fixedly connected to the end of the connecting rod 34 away from the movable cylinder 32, wherein the cylindrical lampshade 30 is sleeved between the movable cylinder 32 and the lamp tube 35, one end of the screw 28 away from the lamp tube 35 extends to the outside of the protective cover 24, and the other end of the screw 28 away from the lamp tube 35 is fixedly connected to the knob 29 rotatably connected to the protective cover 24, the output end of the cylinder 31 is connected to the air intake pipe 16 through a pipeline, and also includes a plurality of batteries 27 fixedly connected to the inner wall of the protective cover 24, the batteries 27 and the lamp tube 35 are electrically connected through a line, and the line passes through the gap between the movable cylinder 32 and the cylindrical lamp cover 30.

[0044] The screw 28 can be driven to rotate by turning the knob 29. The inner side of the movable cylinder 32 is provided with an internal thread matching the screw 28. In addition, the cylinder 31 can limit the movable cylinder 32. When the screw 28 rotates, the movable cylinder 32 rotates synchronously with the screw 28. At the same time, when the movable cylinder 32 moves in the cylindrical lampshade 30, the cylinder 31 can be inhaled or compressed. It should be explained that the cylinder 31 is a conventional means in the prior art, including an air inlet and an exhaust port, and both are unidirectional for gas to pass. The battery 27 is rechargeable, and its charging port is arranged on the outer wall of the protective cover 24.

[0045] In the present invention, when drawing blood from a patient at night, the medical staff puts the cap body 1 on the head, and then fixes it with the Velcro 7 to ensure the stability of the cap body 1 during use, and then turns on the lamp tube 35. By adjusting the angle between the rotating disk 12 and the fixed disk 11, the irradiation angle of the light can be adjusted, wherein the protrusion 13 can play a positioning effect on the rotating disk 12 and the fixed disk 11; when the medical staff lowers their head to observe the patient's blood vessels, the gravity ball 21 will move to the side of the control switch 22 under the action of gravity, and then trigger the control switch 22 to open the solenoid valve 19, and the gas in the fixed volume accommodation space will enter the variable volume accommodation space, driving the telescopic rod 15 to extend outward, so that the protrusion 13 on the rotating disk 12 is separated from the protrusion 13 on the fixed disk 11, and then under the action of gravity, the lamp tube 35 will automatically turn to the direction in which the medical staff lowers their head. After the blood drawing is completed, the tiny exhaust hole will gradually discharge the gas in the variable volume accommodation space completely, and then the rotating disk 12 moves to the initial position for subsequent use;

[0046] When it is necessary to adjust the irradiation range of the light, the knob 29 is turned to drive the screw 28 to rotate. Under the action of the cylinder 31, the movable cylinder 32 is driven to move along the screw 28, thereby adjusting the position of the lamp tube 35 in the cylindrical lampshade 30 or the conical lampshade 25, thereby adjusting the irradiation range of the light and the clarity of the patient's blood vessels, reducing the impact of the light on other patients, and also facilitating medical staff to accurately pierce the patient's stable blood vessels, thereby reducing the number of needle piercings for the patient, reducing the patient's pain and discomfort, and reducing the risk of infection for the patient. In addition, when the movable cylinder 32 moves, it can also inhale or compress the cylinder 31 and transport the compressed gas to the fixed volume accommodation space to ensure the stability of the equipment.

[0047] When the device needs to be charged or repaired, it can be disassembled through the buckle 8 and the card strip 10, and the disassembled hat can also be used for dressing up, protecting hairstyle, etc., which greatly improves the practicality of the device.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hat light for nighttime blood drawing, comprising a hat body (1), a visor (3) and a mounting seat (9), characterized in that: Also includes: A disassembly and assembly mechanism disposed between the visor (3) and the mounting seat (9), and used for disassembly and assembly of the mounting seat (9); an angle adjustment unit disposed on the mounting seat (9), the angle adjustment unit being capable of rotating relative to the mounting seat (9); The adjustment unit is provided with a base (23), the base (23) is connected with a protective cover (24), a range adjustment unit is provided inside the protective cover (24) for adjusting the irradiation range of the light, and the range adjustment unit is connected with the angle adjustment unit through a pipeline.

2. A hat light for nighttime blood drawing according to claim 1, characterized in that: The disassembly and assembly mechanism comprises a buckle (8) fixedly connected to the visor (3), and a clip strip (10) matching the buckle (8) is fixedly connected to the mounting seat (9). The visor (3) is arranged in an arc shape, and the side of the mounting seat (9) close to the clamping strip (10) is arranged in an arc shape and matches the visor (3).

3. A hat light for nighttime blood drawing according to claim 1, characterized in that: The angle adjustment unit comprises a fixed disk (11) fixedly connected to a mounting seat (9), a rotating disk (12) rotatably connected to the fixed disk (11), and a plurality of groups of protrusions (13) are arranged on a side where the rotating disk (12) and the fixed disk (11) are close to each other. The outer wall of the fixed disk (11) is in contact with the inner wall of the rotating disk (12), the protrusions (13) on the fixed disk (11) and the rotating disk (12) are arranged in a staggered manner, and a gravity control mechanism is arranged between the fixed disk (11) and the rotating disk (12).

4. A hat light for nighttime blood drawing according to claim 3, characterized in that: The gravity control mechanism comprises a mounting groove (14) and a groove (20) which are provided on a side of the fixed plate (11) close to the rotating plate (12); a telescopic rod (15) which is rotatably connected to the rotating plate (12) is fixedly connected inside the mounting groove (14); an air intake pipe (16) and a pressure relief pipe (17) are communicated with the outer wall of the telescopic rod (15); a sealing plate (18) is fixedly connected inside the telescopic rod (15); a solenoid valve (19) is arranged on the sealing plate (18); a gravity ball (21) is arranged inside the groove (20); a control switch (22) is arranged on a side of the groove (20) away from the mounting groove (14); the control switch (22) is electrically connected to the solenoid valve (19); The axis of the mounting groove (14) is located on the same straight line as the axis of the fixed disk (11) and the rotating disk (12); a one-way valve is provided on the air intake pipe (16); and a pressure relief valve is provided on the pressure relief pipe (17).

5. A hat light for nighttime blood drawing according to claim 4, characterized in that: The outer wall of the protective cover (24) is connected to a conical lampshade (25), the interior of the protective cover (24) is fixedly connected to a cylindrical lampshade (30), the conical lampshade (25) is connected to the cylindrical lampshade (30), and a lamp housing (26) is provided at one end of the conical lampshade (25) away from the cylindrical lampshade (30).

6. The hat light for nighttime blood drawing according to claim 5, characterized in that: The range adjustment unit comprises a screw rod (28) rotatably connected to the inside of the protective cover (24); a movable cylinder (32) is threadedly connected to the screw rod (28); a fixed block (33) is symmetrically fixedly connected to the outer wall of the movable cylinder (32); a cylinder (31) is connected between the fixed block (33) and the cylindrical lampshade (30); an end of the movable cylinder (32) away from the screw rod (28) is fixedly connected to a connecting rod (34); an end of the connecting rod (34) away from the movable cylinder (32) is fixedly connected to a lamp tube (35); The cylindrical lampshade (30) is sleeved on the outside of the movable cylinder (32) and the lamp tube (35); one end of the screw rod (28) away from the lamp tube (35) extends to the outside of the protective cover (24); and one end of the screw rod (28) away from the lamp tube (35) is fixedly connected to a knob (29) rotatably connected to the protective cover (24); and the output end of the cylinder (31) is connected to the air inlet pipe (16) through a pipeline.

7. The hat light for nighttime blood drawing according to claim 6, characterized in that: It also includes a plurality of groups of storage batteries (27) fixedly connected to the inner wall of the protective cover (24), wherein the storage batteries (27) are electrically connected to the lamp tube (35) via a circuit, and the circuit passes through the gap between the movable tube (32) and the cylindrical lamp cover (30).

8. The hat light for nighttime blood drawing according to claim 3, characterized in that: The protrusions (13) are arranged in a semicircular shape and are made of elastic material. The distance between two adjacent groups of protrusions (13) matches the size of the protrusions (13).

9. The hat light for nighttime blood drawing according to claim 4, characterized in that: There is friction between the gravity ball (21) and the groove (20), and the groove (20) is arranged in parallel with the cap brim (3). When the cap brim (3) is tilted at a certain angle, the gravity ball (21) moves along the groove (20) toward the side of the control switch (22).

10. The hat light for nighttime blood drawing according to claim 1, characterized in that: The hat body (1) is in the shape of a hollow hemisphere, and a brim (2) is fixedly connected to the side of the hat body (1) close to the opening, and the visor (3) is fixedly connected to the hat body (1) and the brim (2).

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