CN116066773A

CN116066773A - Shadowless lamp

Info

Publication number: CN116066773A
Application number: CN202310203321.0A
Authority: CN
Inventors: 潘正素; 陶亮; 梁大兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-05-05

Abstract

The invention provides a shadowless lamp, which relates to the technical field of medical clinical operations and comprises a telescopic component; the telescopic assembly comprises a sleeve and a receiving rod, and a self-locking mechanism is arranged in the sleeve; the self-locking mechanism comprises a connecting block, tooth bars, a fixed pipe, a threaded rod and a moving pipe, wherein the tooth bars are fixedly connected with the tail end of the connecting block, the tooth bars are movably clamped inside the fixed pipe, gears are arranged at the two ends of the threaded rod and are meshed with the tooth bars, medical staff grasp the lamp holder to adjust the position and the height of the lamp holder, the connecting block is driven to move outwards after the rotating rod is pulled, the connecting block drives the tooth bars to move outwards, then the gears at the two ends of the threaded rod are driven to rotate, the threaded rod drives the moving pipe to move through threaded meshing after the rotation of the threaded rod, after the position adjustment of the lamp holder is completed, the threaded rod and the moving pipe realize self locking through threaded meshing, so that the rotating rod is kept in fixed position after stopping, and the problem that the shadowless lamp is difficult to keep in fixed position for a long time is solved.

Description

Shadowless lamp

Technical Field

The invention relates to the technical field of medical clinical operations, in particular to a shadowless lamp.

Background

Clinically, it means a way to directly contact a patient, to perform actual observation, diagnosis and treatment of the patient, clinical operation, and diagnosis and treatment at the time of clinical operation, and during clinical operation, an operation shadowless lamp is required to be used to illuminate an operation site so as to optimally observe small, low-contrast objects at different depths in an incision and a body cavity, and since the head, hands and instruments of an operator may cause interference shadows to the operation site, the operation shadowless lamp should be designed to eliminate shadows as much as possible and minimize color distortion.

However, when the traditional shadowless lamp achieves the instant stop effect, the position is fixed by virtue of the damping piece, a certain degree of looseness is easy to occur after long-time use, the shadowless lamp is easy to fall after being kept for a period of time, the position needs to be adjusted in the operation process, and the position is difficult to be fixed for a long time; because the shadowless lamp inevitably radiates heat during use, the room temperature is easy to rise, the doctor of the main knife is easy to sweat, the cooling function is difficult to realize; after the shadowless lamp is used for a period of time, a certain temperature is easily increased to the illumination part, the operation is not facilitated or the monitoring of the head temperature of a patient is affected, and the shadowless lamp is difficult to realize cooling to avoid the problem; after the position of the shadowless lamp is adjusted by the connecting rod, the position of the shadowless lamp is difficult to be stabilized by fixing the position by utilizing the included angle of the connecting rod, and the problem that various immediate stopping modes are fixed is solved.

Disclosure of Invention

In view of the above, the present invention provides a shadowless lamp having a nursing pad, which allows the mattress to be replaced by pulling the nursing pad, and the patient does not need to get up or move, thereby improving the convenience of replacing the mattress during nursing.

The invention provides a shadowless lamp, which particularly comprises a lamp bracket, a telescopic component and a mounting seat; the inner side of the lamp holder is movably connected with a swivel through a shaft, a connecting rod is fixedly welded at the top of the lamp holder, and a cooling component is arranged in the frame of the lamp holder; the inner side of the swivel is movably connected with a lampshade through a shaft; the top end of the connecting rod is movably connected with a rotating rod in the telescopic component through a shaft; the telescopic assembly comprises a rotating rod, a sleeve and a receiving rod, wherein the tail end of the rotating rod is fixedly connected with a connecting block, the sleeve is sleeved outside the rotating rod, a self-locking mechanism is arranged inside the sleeve, and the sleeve is fixedly connected with the outer part of the receiving rod; the self-locking mechanism comprises a connecting block, tooth bars, a fixed pipe, a threaded rod and a moving pipe, wherein the tail end of the connecting block is fixedly connected with the tooth bars, the tooth bars are movably clamped inside the fixed pipe, a notch is formed in the top surface of the fixed pipe, tooth parts of the tooth bars are exposed out of the notch, the fixed pipe is fixedly arranged at the end of a bearing rod, gears are arranged at two ends of the threaded rod, the gears are in meshed connection with the tooth bars, threads are arranged on the outer wall of the middle of the threaded rod, and threads are arranged on the inner wall of the moving pipe and in meshed connection with the threaded rod; the mounting seat is fixedly mounted on the shed roof through a screw, and two groups of cross bars are movably clamped at the bottom of the mounting seat through a shaft; the tail end of the cross rod is movably clamped with a connecting pipe; the tail end of the connecting pipe is movably connected to a receiving rod in the telescopic component.

Optionally, be equipped with vent and handrail on the lighting fixture, the vent runs through the frame inside of lighting fixture, the inside fixed joint cooling subassembly of vent, and the handrail fixed welding is in the outside of lighting fixture, and the handrail is the arc structure.

Optionally, the inner wall of the lamp shade is fixedly provided with a reflecting sheet, the attaching angle of the reflecting sheet is attached to the cambered surface of the inner wall of the lamp shade, and a refrigerating element is arranged in the reflecting sheet.

Optionally, the regulating part is including dead lever, change cover and regulator, and the outside at the lighting fixture of dead lever fixed welding, and the outside activity joint of dead lever has changes the cover, changes and sheathes in fixed mounting regulator, is equipped with button and display screen on the regulator, and the inside of regulator is equipped with the PLC controller, and the PLC controller links to each other with the inside light electricity of lamp shade.

Optionally, the front end of bull stick is equipped with annular structure, and the front end bottom of bull stick is the inclined plane structure, and the inside activity joint connecting tube of end of holding rod, the external diameter size of holding rod equals with the external diameter size of bull stick.

Optionally, self-locking mechanism still includes the fixing base, and screw fixed mounting is passed through in sheathed tube inside bottom to the bottom of fixing base, and the inside top of fixing base is equipped with the round hole, and the round hole is run through by the threaded rod, and the outside fixed solid fixed ring that is equipped with of movable tube, gu fixed ring's inside activity joint has the gag lever post, and the both ends fixed connection of gag lever post is on the fixing base.

Optionally, the cooling subassembly includes cardboard, card strip, cooling filter core and ventilative board, and the bottom of cardboard is equipped with the T template, and the top surface of card strip is equipped with the draw-in groove, and the inside joint T template of draw-in groove, cooling filter core divide into dust layer, ice bag layer, water absorption layer, disinfection layer four-layer structure, and the inside of ventilative board is equipped with the bleeder vent, and the inside of ventilative board fixed joint at the vent.

Optionally, the upper and lower both ends of connecting tube are fixed respectively and are equipped with two sets of snap rings, and the inside at the horizontal pole end of top snap ring activity joint, the inside at the end of accepting the pole of below snap ring activity joint.

Advantageous effects

Compared with the traditional shadowless lamp, the shadowless lamp provided by the embodiment of the invention has the advantages that medical staff can conveniently grasp the lamp holder by utilizing the handrails so as to randomly adjust the position and the height of the lamp holder, the angle between the cross rod and the receiving rod can be adjusted in the left-right direction by utilizing the connecting pipe, the connecting block is driven to move outwards after the connecting rod is pulled, the tooth rod is driven to move outwards by the connecting block, the gears at two ends of the threaded rod are driven to rotate by the connecting block, the moving pipe is driven to rotate by the threaded engagement after the threaded rod rotates, the moving pipe cannot rotate under the limit of the limiting rod, so that the rotation is converted into the movement, no push-pull force is applied to the outer end of the rotating rod after the position adjustment of the lamp holder is completed, and the threaded rod and the moving pipe can realize self-locking through the threaded engagement at the moment, so that the position of the rotating rod can be kept fixed after stopping.

In addition, clinical medical personnel select ice bag use amount and put into the inside ice bag layer of cooling filter core according to estimating the operation time, vent inside is from supreme ventilative board, cooling filter core, card strip and cardboard of putting into in proper order down, promote the cardboard and slide to inside the lighting fixture jib, make the cardboard joint in the lighting fixture inside with between the card strip, accomplish fixed joint, utilize the cooling filter core to make the ice bag melt the cold air downward release that gives off, cool down to lighting fixture bottom peripheral air after passing ventilative board and vent, thereby in long-time clinical operation in-process, can avoid lighting fixture peripheral air temperature to rise, reduce and flow the sweat because of the room temperature risees and lead to the doctor of the doctor.

In addition, the light scattered on the inner wall of the lampshade can be totally reflected by the reflecting sheet, the illuminating lamp in the lampshade is matched for illumination, the illumination area is enlarged, the darkness degree of the whole shadow and penumbra is lightened, shadowless illumination is realized, meanwhile, the refrigerating element in the reflecting sheet is used for cooling the positions of the lampshade and the illuminating lamp holder, and the operation position or the head temperature of a patient is prevented from rising.

In addition, the annular structure of utilizing the bull stick front end makes the axle run through can swing joint connecting rod, utilizes the inclined plane structure of bull stick front end bottom to make and has minimum contained angle between bull stick and the connecting rod, when the lighting fixture was adjusted to inclination, utilized minimum contained angle to stabilize the position of lighting fixture more easily, realized that multiple stop the mode promptly and fix.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings described below are only for illustration of some embodiments of the invention and are not intended to limit the invention.

In the drawings:

fig. 1 shows a schematic view of a bottom view of a lamp holder according to the present invention;

FIG. 2 shows a schematic view of a cross-bar and a receiving bar in partial cross-section according to the present invention;

fig. 3 shows a schematic view of a structure of a lampshade according to the present invention from a bottom view;

FIG. 4 shows a schematic structural view of a telescoping assembly according to the present invention;

FIG. 5 shows a schematic structural view of a self-locking mechanism according to the present invention;

fig. 6 shows a schematic top view of a lamp holder according to the present invention;

FIG. 7 shows a schematic view of an expanded configuration of a cooling assembly according to the present invention;

FIG. 8 shows an enlarged schematic view of the structure of FIG. 3A in accordance with the present invention;

fig. 9 shows an enlarged schematic view of the structure at B in fig. 5 according to the present invention.

List of reference numerals

1. A lamp holder; 101. a vent; 102. a swivel; 103. an armrest; 104. a connecting rod; 2. a lamp shade; 201. a reflective sheet; 3. an adjusting member; 31. a fixed rod; 32. a rotating sleeve; 33. a regulator; 4. a telescoping assembly; 41. a rotating rod; 42. a sleeve; 43. a receiving rod; 5. a self-locking mechanism; 51. a connecting block; 52. tooth bar; 53. a fixed tube; 54. a threaded rod; 55. a moving tube; 5501. a fixing ring; 5502. a limit rod; 56. a fixing seat; 6. a cooling component; 61. a clamping plate; 6101. t-shaped plates; 62. clamping strips; 6201. a clamping groove; 63. cooling the filter element; 64. a ventilation plate; 7. a connecting pipe; 701. a clasp; 8. a cross bar; 9. and (5) a mounting seat.

Detailed Description

In order to make the objects, aspects and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiment of the present invention. Unless otherwise indicated, terms used herein have the meaning common in the art. Like reference numerals in the drawings denote like parts.

Examples: please refer to fig. 1 to 9:

the invention provides a shadowless lamp which comprises a lamp holder 1, a telescopic component 4 and a mounting seat 9; the inner side of the lamp holder 1 is movably connected with a swivel 102 through a shaft, a connecting rod 104 is fixedly welded at the top of the lamp holder 1, and a cooling component 6 is arranged in the frame of the lamp holder 1; the inner side of the swivel 102 is movably connected with a lampshade 2 through a shaft; the top end of the connecting rod 104 is movably connected with a rotating rod 41 in the telescopic component 4 through a shaft; the telescopic assembly 4 comprises a rotating rod 41, a sleeve 42 and a receiving rod 43, wherein the tail end of the rotating rod 41 is fixedly connected with a connecting block 51, the sleeve 42 is sleeved outside the rotating rod 41, the self-locking mechanism 5 is arranged inside the sleeve 42, and the sleeve 42 is fixedly connected with the outer part of the receiving rod 43; the self-locking mechanism 5 comprises a connecting block 51, tooth bars 52, a fixed pipe 53, a threaded rod 54 and a movable pipe 55, wherein the tail end of the connecting block 51 is fixedly connected with the tooth bars 52, the tooth bars 52 are movably clamped inside the fixed pipe 53, the top surface of the fixed pipe 53 is provided with a notch, the tooth parts of the tooth bars 52 are exposed at the notch, the fixed pipe 53 is fixedly arranged at the end of the receiving rod 43, gears are arranged at two ends of the threaded rod 54 and are in meshed connection with the tooth bars 52, threads are arranged on the outer wall of the middle of the threaded rod 54, and the inner wall of the movable pipe 55 is provided with threads and is in meshed connection with the threaded rod 54; the mounting seat 9 is fixedly arranged on the roof through a screw, and two groups of cross bars 8 are movably clamped at the bottom of the mounting seat 9 through shafts; the inside of the tail end of the cross rod 8 is movably clamped with a connecting pipe 7; the end of the connecting tube 7 is movably connected to a receiving rod 43 in the telescopic assembly 4.

In addition, as shown in fig. 8, the adjusting member 3 includes a fixing rod 31, a rotating sleeve 32 and an adjuster 33, the fixing rod 31 is fixedly welded on the outer portion of the lamp holder 1, the rotating sleeve 32 is movably clamped on the outer portion of the fixing rod 31, the adjuster 33 is fixedly installed on the rotating sleeve 32, a key and a display screen are arranged on the adjuster 33, a PLC controller is arranged in the adjuster 33 and is electrically connected with an illuminating lamp in the lampshade 2, the illumination intensity, the color temperature and the number of the illuminating lamps can be regulated through the key on the adjuster 33, illumination parameters can be observed through the display screen, the adjuster 33 can rotate by utilizing the rotating sleeve 32, and a user can rotate the adjuster 33 at any angle to have an optimal visual angle.

In addition, as shown in fig. 2, two groups of snap rings 701 are fixedly arranged at the upper end and the lower end of the connecting tube 7 respectively, the upper snap ring 701 is movably clamped inside the tail end of the cross rod 8, the lower snap ring 701 is movably clamped inside the tail end of the bearing rod 43, the angle can be adjusted in the left-right direction between the cross rod 8 and the bearing rod 43 by using the connecting tube 7, the lamp holder 1 has a larger arm expanding space, the illumination requirement of any position of clinical operation is met, the telescopic assembly 4 and the self-locking mechanism 5 can be further arranged in the middle section of the connecting tube 7, the upper and the lower directions of the connecting tube 7 can be telescopic, the height of the lamp holder 1 is adjusted, and the self-locking can be realized.

In addition, be equipped with vent 101 and handrail 103 on the lighting fixture 1 as shown in fig. 1 and fig. 6, vent 101 runs through inside the frame of lighting fixture 1, the inside fixed joint cooling module 6 of vent 101, handrail 103 fixed welding is in the outside of lighting fixture 1, and handrail 103 is the arc structure, utilize vent 101 to make its inside cooling module 6 pass down cold air, thereby keep the constancy of temperature of lighting fixture 1 frame, avoid the illumination time overlength to lead to patient's head or other lamp distance nearer the affected part intensification, utilize handrail 103 to make medical personnel conveniently grasp lighting fixture 1, so as to adjust at will the position and the height of lighting fixture 1.

In addition, as shown in fig. 3, the inner wall of the lampshade 2 is fixedly provided with a reflector 201, the attaching angle of the reflector 201 is attached to the cambered surface of the inner wall of the lampshade 2, and a refrigerating element is arranged in the reflector 201, so that the light scattered on the inner wall of the lampshade 2 can be totally reflected by the reflector 201, and the lamp inside the lampshade 2 is matched for illumination, so that the illumination area is enlarged, the darkness of the whole shadow and the penumbra is reduced, shadowless illumination is realized, and meanwhile, the refrigerating element inside the reflector 201 is utilized to cool the lampshade 2 and the illuminating lamp holder, and the operation position or the head temperature rise of a patient is avoided.

In addition, as shown in fig. 7, cooling assembly 6 includes cardboard 61, card strip 62, cooling filter core 63 and aeration plate 64, the bottom of cardboard 61 is equipped with T template 6101, the top surface of card strip 62 is equipped with draw-in groove 6201, the inside joint T template 6101 of draw-in groove 6201, cooling filter core 63 divide into the dust layer, the ice bag layer, water absorption layer, disinfection layer four-layer structure, aeration plate 64's inside is equipped with the bleeder vent, and aeration plate 64 fixed joint is in vent 101's inside, from supreme aeration plate 64 of putting gradually down in vent 101 inside, cooling filter core 63, card strip 62 and cardboard 61 after, promote cardboard 61 slip to inside lamp stand 1 jib, make cardboard 61 joint between lamp stand 1 inside and card strip 62, accomplish fixed joint, utilize cooling filter core 63 to make the cold air that the ice bag melts that gives out downwards release, cool down lamp stand 1 bottom peripheral air after passing aeration plate 64 and vent 101, thereby in the clinical operation process for a long time, can avoid lamp stand 1 peripheral air temperature to rise, reduce and lead to the condition that main doctor sweats flows because of the room temperature rise, improve comfort level.

In addition, as shown in fig. 5 and fig. 9, the self-locking mechanism 5 further comprises a fixed seat 56, the bottom end of the fixed seat 56 is fixedly installed at the inner bottom end of the sleeve 42 through a screw, a round hole is formed above the inner portion of the fixed seat 56, the round hole is penetrated by a threaded rod 54, a fixed ring 5501 is fixedly arranged outside the movable tube 55, a limiting rod 5502 is movably clamped inside the fixed ring 5501, two ends of the limiting rod 5502 are fixedly connected to the fixed seat 56, the connecting rod 41 is pulled to drive the connecting rod 51 to move outwards, the connecting rod 51 drives the tooth rod 52 to move outwards, gears at two ends of the threaded rod 54 are driven to rotate, the threaded rod 54 drives the movable tube 55 to rotate through threaded engagement, the limiting of the movable tube 55 is not capable of rotating, and therefore rotation is converted into movement, after position adjustment of the lamp holder 1 is completed, push-pull force is not applied to the outer end of the rotating rod 41, at this moment, the threaded rod 54 and the movable tube 55 can be self-locked through threaded engagement, and the position of the rotating rod 41 can be kept fixed after stopping.

In addition, as shown in fig. 3 and fig. 4, the front end of the rotating rod 41 is provided with an annular structure, the bottom of the front end of the rotating rod 41 is of an inclined surface structure, the tail end of the receiving rod 43 is movably clamped with the connecting pipe 7, the outer diameter of the receiving rod 43 is equal to that of the rotating rod 41, the connecting rod 104 can be movably connected by penetrating a shaft through the annular structure of the front end of the rotating rod 41, the inclined surface structure of the bottom of the front end of the rotating rod 41 is used for enabling a minimum included angle to be formed between the rotating rod 41 and the connecting rod 104, and when the lamp holder 1 is adjusted to an inclined angle, the position of the lamp holder 1 is more easily stabilized by using the minimum included angle.

Specific use and action of the embodiment: according to the invention, clinical medical staff selects the using amount of the ice bag according to the estimated operation, and puts the ice bag layer in the cooling filter element 63, after the ventilation opening 101 is sequentially put into the ventilation plate 64, the cooling filter element 63, the clamping strips 62 and the clamping plates 61 from bottom to top, the clamping plates 61 are pushed to slide into the hanger rod of the lamp holder 1, the clamping plates 61 are clamped between the inside of the lamp holder 1 and the clamping strips 62 to finish fixed clamping, the cooling filter element 63 is utilized to enable cold air emitted by melting the ice bag to be downwards released, and the peripheral air at the bottom of the lamp holder 1 is cooled after passing through the ventilation plate 64 and the ventilation opening 101, so that the peripheral air temperature of the lamp holder 1 can be prevented from rising in the long-time clinical operation process, and sweat of a doctor due to the rising of room temperature is reduced;

the medical staff can conveniently grasp the lamp holder 1 by utilizing the handrails 103 so as to randomly adjust the position and the height of the lamp holder 1, the connecting tube 7 can be used for enabling the angle between the cross rod 8 and the receiving rod 43 to be adjusted in the left-right direction, the connecting rod 41 is pulled to drive the connecting block 51 to move outwards, the connecting block 51 drives the tooth rod 52 to move outwards, further the gears at two ends of the threaded rod 54 are driven to rotate, the threaded rod 54 is driven to rotate through threaded engagement after rotating, the moving tube 55 is limited by the limiting rod 5502 to rotate, so that rotation is converted into movement, after the lamp holder 1 completes position adjustment, the outer end of the rotating rod 41 is not provided with push-pull force, at the moment, the threaded rod 54 and the moving tube 55 can be self-locked through threaded engagement, and the position of the rotating rod 41 can be kept fixed after stopping;

the illumination intensity, color temperature and lighting quantity of the illumination lamp can be regulated and controlled through the keys on the regulator 33, illumination parameters are observed through the display screen, the regulator 33 can rotate by the rotating sleeve 32, and a user can rotate the regulator 33 at any angle to have the optimal visual angle.

Claims

1. The shadowless lamp is characterized by comprising a lamp bracket (1), a telescopic component (4) and a mounting seat (9); the inner side of the lamp holder (1) is movably connected with a swivel (102) through a shaft, a connecting rod (104) is fixedly welded at the top of the lamp holder (1), and a cooling component (6) is arranged in the frame of the lamp holder (1); the inner side of the swivel (102) is movably connected with a lampshade (2) through a shaft; the top end of the connecting rod (104) is movably connected with a rotating rod (41) in the telescopic component (4) through a shaft; the telescopic assembly (4) comprises a rotating rod (41), a sleeve (42) and a bearing rod (43), wherein the tail end of the rotating rod (41) is fixedly connected with a connecting block (51), the sleeve (42) is sleeved outside the rotating rod (41), a self-locking mechanism (5) is arranged inside the sleeve (42), and the sleeve (42) is fixedly connected with the outer part of the bearing rod (43); the self-locking mechanism (5) comprises a connecting block (51), tooth bars (52), a fixed pipe (53), a threaded rod (54) and a movable pipe (55), wherein the tail end of the connecting block (51) is fixedly connected with the tooth bars (52), the tooth bars (52) are movably clamped in the fixed pipe (53), a notch is formed in the top surface of the fixed pipe (53), tooth parts of the tooth bars (52) are exposed out of the notch, the fixed pipe (53) is fixedly arranged at the end of a bearing rod (43), gears are arranged at two ends of the threaded rod (54), the gears are in meshed connection with the tooth bars (52), threads are arranged on the outer wall of the middle of the threaded rod (54), and the inner wall of the movable pipe (55) is provided with threads and is in meshed connection with the threaded rod (54); the mounting seat (9) is fixedly mounted on the roof through screws, and two groups of cross bars (8) are movably clamped at the bottom of the mounting seat (9) through shafts; a connecting pipe (7) is movably clamped in the tail end of the cross rod (8); the tail end of the connecting pipe (7) is movably connected to a receiving rod (43) in the telescopic assembly (4).

2. A shadowless lamp as claimed in claim 1, wherein: be equipped with vent (101) and handrail (103) on lighting fixture (1), inside the frame of lighting fixture (1) is run through to vent (101), inside fixed joint cooling subassembly (6) of vent (101), and the outside at lighting fixture (1) is welded to handrail (103) is fixed, and handrail (103) are arc structure.

3. A shadowless lamp as claimed in claim 2, wherein: the inner wall of the lampshade (2) is fixedly provided with a reflecting sheet (201), the attaching angle of the reflecting sheet (201) is attached to the cambered surface of the inner wall of the lampshade (2), and a refrigerating element is arranged in the reflecting sheet (201).

4. A shadowless lamp as claimed in claim 3, wherein: the adjusting piece (3) comprises a fixing rod (31), a rotating sleeve (32) and an adjuster (33), wherein the fixing rod (31) is fixedly welded on the outer portion of the lamp holder (1), the rotating sleeve (32) is movably clamped on the outer portion of the fixing rod (31), the adjuster (33) is fixedly installed on the rotating sleeve (32), keys and a display screen are arranged on the adjuster (33), a PLC (programmable logic controller) is arranged in the adjuster (33), and the PLC is electrically connected with an illuminating lamp in the lampshade (2).

5. A shadowless lamp as claimed in claim 1, wherein: the front end of the rotating rod (41) is provided with an annular structure, the bottom of the front end of the rotating rod (41) is of an inclined surface structure, the tail end of the receiving rod (43) is movably clamped with the connecting pipe (7), and the outer diameter of the receiving rod (43) is equal to that of the rotating rod (41).

6. A shadowless lamp as claimed in claim 1, wherein: the self-locking mechanism (5) further comprises a fixing seat (56), the bottom end of the fixing seat (56) is fixedly arranged at the inner bottom end of the sleeve (42) through a screw, a round hole is formed in the upper portion of the inside of the fixing seat (56), the round hole is penetrated by a threaded rod (54), a fixing ring (5501) is fixedly arranged outside the movable pipe (55), a limiting rod (5502) is movably clamped in the fixing ring (5501), and two ends of the limiting rod (5502) are fixedly connected to the fixing seat (56).

7. A shadowless lamp as claimed in claim 2, wherein: the cooling assembly (6) comprises a clamping plate (61), clamping strips (62), a cooling filter element (63) and a ventilation plate (64), wherein a T-shaped plate (6101) is arranged at the bottom of the clamping plate (61), a clamping groove (6201) is formed in the top surface of the clamping strips (62), the T-shaped plate (6101) is clamped inside the clamping groove (6201), the cooling filter element (63) is divided into a dustproof layer, an ice bag layer, a water absorption layer and a disinfection layer, ventilation holes are formed in the ventilation plate (64), and the ventilation plate (64) is fixedly clamped inside the ventilation opening (101).

8. A shadowless lamp as defined in claim 5, wherein: two groups of clamping rings (701) are respectively and fixedly arranged at the upper end and the lower end of the connecting pipe (7), the upper clamping ring (701) is movably clamped inside the tail end of the cross rod (8), and the lower clamping ring (701) is movably clamped inside the tail end of the bearing rod (43).