CN109163251B

CN109163251B - Shadowless lamp

Info

Publication number: CN109163251B
Application number: CN201811072796.6A
Authority: CN
Inventors: 臧洪亮; 郭薇; 李玉惠; 刘素杰
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2021-06-25
Anticipated expiration: 2038-09-14
Also published as: CN109163251A

Abstract

The invention discloses a shadowless lamp, which comprises a support plate, a first connecting rod, a second connecting rod and a fixed tube, wherein the outer sides of the adjacent second connecting rods are connected with each other through a third connecting rod, the bottom of the fixed tube is connected with a fixed seat, an inserting rod is movably inserted in the top of the fixed tube, a disc is connected above the inserting rod, the center of the top surface of the disc is connected with a rack, a first bracket and a motor are further connected below the support plate, the first bracket is connected with a first gear in an axial mode, the motor is connected with a second gear, two sides of the rack are respectively meshed with the first gear and the second gear, a lantern ring is movably sleeved on the third connecting rod, a sector plate is fixedly connected at the bottom of the lantern ring, a plurality of first lamp beads are connected below the sector plate, a fixed plate is connected on the inner side of the sector plate, a first spring is connected between the fixed plate and the, the invention can improve the defects of the prior art and has better adjusting effect.

Description

Shadowless lamp

Technical Field

The invention relates to a lamp, in particular to a shadowless lamp.

Background

Shadowless lamps, also known as surgical shadowless lamps, are used to illuminate a surgical site for optimal viewing of small, low contrast objects at various depths in incisions and body cavities. Because the head, hands and instruments of the operator can cause interference shadows to the surgical site, the surgical shadowless lamp should be designed to eliminate the shadows as much as possible and minimize color distortion. The Chinese invention patent CN 207179368U discloses an operation shadowless lamp. The operating shadowless lamp with the structure adjusts the shadow and the focal length of the operating shadowless lamp through the height adjusting motor and the height adjusting disc. However, the shadowless lamp with the structure can only be adjusted in rotation and height in the vertical direction, the adjustment mode is limited, a better shadow eliminating effect cannot be achieved, and the application range of the shadowless lamp is limited.

Disclosure of Invention

The invention aims to provide a shadowless lamp, which can solve the defects of the prior art and has a better adjusting effect.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows.

A shadowless lamp comprises a circular support plate, wherein a plurality of first connecting rods which are arranged in an annular mode are vertically connected below the support plate, second connecting rods are vertically connected below the first connecting rods, the second connecting rods are arranged in an annular mode, a fixing pipe is fixedly connected to the inner sides of the second connecting rods, the outer sides of the adjacent second connecting rods are connected with each other through a third connecting rod, a fixing seat is connected to the bottom of each fixing pipe, an inserting rod is movably inserted into the top of each fixing pipe, a disc is connected above each inserting rod, a rack is connected to the center of the top surface of each disc, a first support and a motor are further connected below the support plate, a first gear is axially connected to the first support, a second gear is connected to the motor, the two sides of the rack are meshed with the first gear and the second gear respectively, a lantern ring is movably sleeved on each third connecting rod, and a sector plate is fixedly connected to, the lower part of the sector plate is connected with a plurality of first lamp beads, the inner side of the sector plate is connected with a fixed plate, a first spring is connected between the fixed plate and the fixed seat, and a connecting rope is connected between the inner side of the sector plate and the disc.

Preferably, the concave surface of the sector plate faces downwards, the inner side of the sector plate is fixedly connected with a connecting ring, and the connecting rope is wound on the connecting ring.

Preferably, the bottom surface of the fixing seat is spherical, wherein the convex surface faces downwards, and a plurality of second lamp beads are uniformly connected to the bottom surface of the fixing seat.

Preferably, a plurality of third lamp beads are connected to the upper portion of the fixing plate, and the bottom of the disc is a mirror surface.

Preferably, a round hole is formed in the center of the supporting plate, and the rack penetrates through the round hole.

Preferably, the outer side of the first spring is sleeved with a sleeve, the sleeve is fixed to the top of the fixing seat, the side wall of the sleeve is connected with a rubber damping strip through an adjusting bolt, and the rubber damping strip is in contact with the first spring.

Preferably, the surface of the rubber damping strip is provided with a groove, the groove is internally connected with a limiting strip through a second spring, and the surface of the limiting strip is provided with a flange clamped with the first spring.

Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the shadowless lamp comprises a first lamp bead arranged below a plurality of annularly arranged sector plates and used for providing a light source of the shadowless lamp, a support plate, a structure for supporting the whole shadowless lamp, a first connecting rod and a second connecting rod which are used for fixedly connecting a third connecting rod and a fixed tube, wherein the plurality of third connecting rods form a regular polygon, the fixed tube is positioned at the central position of a regular multi-disc shape, a lantern ring is movably sleeved on the third connecting rod, the sector plates below the lantern ring are used for connecting the first lamp bead, and the sector plates are arranged in an annular shape, so that a large-area light source is synthesized, light can be irradiated onto an operating table or an operating table from different angles to realize shade attenuation and achieve the shadowless effect The structure of the first gear and the second gear drives the rack to move up and down through the rotation of the motor, and further drives each connecting rope to pull the sector plates to move through the disc below the rack, the sector plates are movably sleeved on the third connecting rod through the lantern ring, so that the pulling connecting ropes can drive the angle adjustment of the sector plates, the sector plates are connected to one disc through the connecting ropes, the up and down movement of the disc can drive the sector plates to rotate synchronously at an angle, the irradiation angle of the first lamp bead below can be adjusted, the effects of adjusting the focal length and further reducing the shadow influence are achieved, further, the motor can select a servo motor, the adjustment steps of the motor can be controlled, the accuracy is high, compared with the prior art, the lamp angle adjusting structure can only be in the vertical direction or in the mode of rotating the whole lamp, and the adjusting space is larger, have better adjustment effect, the inboard fixed plate of sector plate for and be connected with first spring between the fixing base, first spring can provide the inboard straight decurrent power of dragging of sector plate, guarantee to connect the rope and be in the state of tightening always, thereby can guarantee the towed regulation effect of motor, the inserted bar of disc below establishes the relation for the movable sleeve with fixed pipe, fixed pipe can carry on spacingly to the inserted bar on horizontal position, prevent rocking of disc, thereby further guarantee the position accuracy of motor adjustment. The concave surface of the sector plate faces downwards, the structure enables the irradiation of the first lamp beads to have a certain focusing effect, and the connecting ring on the inner side of the sector plate is convenient to connect with the connecting rope; the bottom is the fixing base of spherical, and a plurality of second lamp pearls are connected to the below, can throw light on the inboard region of each sector plate to guarantee the degree of consistency that the lamp shines. The round hole in the center of the supporting plate ensures that the stroke of the rack is not influenced; the third lamp pearl of fixed plate top upwards the light-emitting to shine on the mirror surface of disc bottom, after the light reflection, can see through the gap of each sector plate, shine on the workstation, thereby further guarantee the degree of consistency that the lamp shines. The rubber damping strip in the sleeve is used for applying telescopic damping force to the first spring, and the consistency of the telescopic force and the length of different first springs is realized through the adjustment of the adjusting bolt.

Drawings

FIG. 1 is a structural view of embodiment 1.

Fig. 2 is a bottom view of the shadowless lamp in example 1.

Fig. 3 is a structural view of the second connecting rod and the third connecting rod in embodiment 1.

Fig. 4 is a structural view of a fixing plate in embodiment 1.

FIG. 5 is a bottom view of the disk in example 1.

Fig. 6 is an axial sectional view of the sleeve in embodiment 2.

In the figure: 1. a support plate; 2. a first connecting rod; 3. a rack; 4. a first bracket; 5. a first gear; 6. a motor; 7. a second gear; 8. a disc; 9. connecting ropes; 10. a collar; 11. a sector plate; 12. a first lamp bead; 13. a connecting ring; 14. a fixing plate; 15. a first spring; 16. a fixed seat; 17. a second lamp bead; 18. a fixed tube; 19. a second connecting rod; 20. a third connecting rod; 21. inserting a rod; 22. a circular hole; 23. a third lamp bead; 24. mounting a plate; 25. a circular table portion; 26. a sleeve; 27. adjusting the bolt; 28. a rubber damping strip; 29. a groove; 30. a second spring; 31. a limiting strip; 32. a flange; 33. an elastic connecting rod; 34. a contact piece; 35. a support bar; 36. the fastener.

Detailed Description

The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description and the description of the attached drawings, and the specific connection mode of each part adopts the conventional means of mature bolts, rivets, welding, sticking and the like in the prior art, and the detailed description is not repeated.

Example 1

Referring to fig. 1-5, a specific embodiment of the present invention includes a circular support plate 1, a plurality of first connecting rods 2 arranged in a ring shape are vertically connected to the lower portion of the support plate 1, second connecting rods 19 are vertically connected to the lower portion of the first connecting rods 2, a plurality of second connecting rods 19 are arranged in a ring shape, a fixed pipe 18 is fixedly connected to the inner sides of the plurality of second connecting rods 19, the outer sides of adjacent second connecting rods 19 are connected to each other through a third connecting rod 20, a fixed seat 16 is connected to the bottom of the fixed pipe 18, an inserting rod 21 is movably inserted into the top of the fixed pipe 18, a disc 8 is connected to the upper portion of the inserting rod 21, a rack 3 is connected to the center of the top surface of the disc 8, a first bracket 4 and a motor 6 are further connected to the lower portion of the support plate 1, a first gear 5 is pivotally connected to the first bracket 4, a second gear 7 is connected to the motor 6, two sides of, the third connecting rod 20 is movably sleeved with a lantern ring 10, the bottom of the lantern ring 10 is fixedly connected with a sector plate 11, the lower portion of the sector plate 11 is connected with a plurality of first lamp beads 12, the inner side of the sector plate 11 is connected with a fixing plate 14, a first spring 15 is connected between the fixing plate 14 and a fixing seat 16, and a connecting rope 9 is further connected between the inner side of the sector plate 11 and the disc 8. The shadowless lamp comprises a first lamp bead 12 below a plurality of annularly arranged fan-shaped plates 11 and used for providing a light source of the shadowless lamp, a support plate 1 is connected with a shadowless lamp holder in the prior art and used for supporting the whole shadowless lamp, a first connecting rod 2 and a second connecting rod 19 are used for fixedly connecting a third connecting rod 20 and a fixed tube 18, the plurality of third connecting rods 20 form a regular polygon, the fixed tube 18 is positioned at the central position of the regular multi-piece shape, a lantern ring 10 is movably sleeved on the third connecting rod 20, the fan-shaped plates 11 below the lantern ring 10 are connected with the first lamp bead 12 below, the plurality of fan-shaped plates 11 are annularly arranged, so that a large-area light source is synthesized, light can be irradiated on a working table from different angles, shadow lightening is realized, the shadowless effect is achieved, further, an operating table 6 can be started, the motor 6 is enabled to rotate forwards or reversely, so that through the structure of the rack 3, the first gear 5 and the second gear 7 which are meshed with each other, the rack 3 is driven to move up and down through the rotation of the motor 6, and then the disc 8 below the rack 3 drives each connecting rope 9 to pull the sector plates 11 to move, the sector plates 11 are movably sleeved on the third connecting rod 20 through the lantern ring 10, so that the connecting ropes 9 are pulled to drive the sector plates 11 to adjust the angle, the sector plates 11 are connected to one disc 8 through the connecting ropes 9, so that the up and down movement of the disc 8 can drive the sector plates 11 to rotate synchronously at an angle, and the irradiation angle of the first lamp beads 12 below can be adjusted, thereby achieving the effects of adjusting the focal length and further reducing the shadow influence, further, the motor 6 of the invention can select a servo motor, so that the adjustment step number of the motor can be controlled and the accuracy is high, this kind of regulation structure of lamp angle, only can be at the holistic mode of vertical direction or rotation lamp for prior art, the adjustment space is bigger, better adjustment effect has, the inboard fixed plate 14 of sector plate 11, be used for and be connected with first spring 15 between the fixing base 16, first spring 15 can provide the inboard straight decurrent power of dragging of sector plate 11, guarantee to connect rope 9 and be in the state of stretching always, thereby can guarantee the towed regulation effect of motor 6, inserted bar 21 of disc 8 below, establish the relation for the activity cover with fixed pipe 18, fixed pipe 18 can be spacing to inserted bar 21 on horizontal position, prevent rocking of disc 8, thereby further guarantee the position accuracy of motor 6 adjustment. The concave surface of the sector plate 11 faces downwards, the inner side of the sector plate 11 is fixedly connected with a connecting ring 13, and the connecting rope 9 is wound on the connecting ring 13. The concave surface of the sector plate 11 faces downwards, the structure enables the irradiation of the first lamp beads 12 to have a certain focusing effect, and the connecting ring 13 on the inner side of the sector plate 11 is convenient to connect the connecting rope 9; the bottom surface of the fixed seat 16 is spherical, wherein the convex surface faces downwards, and a plurality of second lamp beads 17 are uniformly connected to the bottom surface of the fixed seat 16. The bottom is spherical fixing base 16, and a plurality of second lamp pearls 17 are connected to the below, can throw light on the region of each sector plate 11 inboard to guarantee the degree of consistency that the lamp shines. A round hole 22 is formed in the center of the support plate 1, and the round hole 22 is selectively penetrated above the rack 3. The round hole 22 in the center of the support plate 1 ensures that the stroke of the rack 3 is not influenced; a plurality of third lamp beads 23 are connected to the upper portion of the fixing plate 14, and the bottom of the disc 8 is a mirror surface. Third lamp pearl 23 of fixed plate 14 top, the light-emitting upwards to shine on the mirror surface of 8 bottoms on the disc, after the light reflection, can see through the gap of each sector plate 11, shine on the workstation, thereby further guarantee the degree of consistency that the lamp shines.

In order to further improve the irradiation effect of the present invention, the fixing plate 14 includes two mounting plates 24 connected to each other, an included angle between the two mounting plates 24 is 140 °, the two mounting plates 24 are both connected to the sector plate 11, the included angle between the two mounting plates 24 faces downward, the third lamp bead 23 is located on the top surface of the mounting plate 24, the edge of the disc 8 is provided with a circular table portion 25, the circular table portion 25 is a circular table-shaped outer cylindrical surface, an upper opening of the circular table portion 25 is larger than a lower opening of the circular table portion, a surface of the circular table portion 25 is a mirror surface, with the above structure, the third lamp bead 23 above the two mounting plates 24 is installed with an included angle of 140 ° therebetween, so as to emit light obliquely upward and irradiate on the mirror surface below the disc 8 and the circular table portion 25, the disc 8 reflects the light downward, and the circular table portion 25 emits the light obliquely outward, with the above device, it is ensured that the light of the third lamp bead 23 is not completely, part of the light can be emitted from the gaps between the sector plates 11, thereby further ensuring uniformity of lamp illumination.

Example 2

Referring to fig. 6, the present embodiment is further improved based on embodiment 1. During a number of tests by the applicant, the applicant has found that after a long period of use, the spring constant and the initial length of the first spring 15 may vary, causing the angle of the fixing plate 14 to shift. In order to solve the problem, a sleeve 26 is sleeved outside the first spring 15, the sleeve 26 is fixed on the top of the fixed seat 16, a rubber damping strip 28 is connected to the side wall of the sleeve 26 through an adjusting bolt 27, and the rubber damping strip 28 is in contact with the first spring 15. The surface of the rubber damping strip 28 is provided with a groove 29, the groove 29 is connected with a limiting strip 31 through a second spring 30, and the surface of the limiting strip 31 is provided with a flange 32 which is clamped with the first spring 15. The adjusting bolt 27 drives the rubber damping strip 28 to generate a friction force to the first spring 15, thereby correcting the elastic coefficient of the first spring 15. The flanges 32 on the stop strip 31 are in good snap-fit relation with the first spring 15 to ensure that no additional deformation of the first spring 15 occurs after adjustment in place. A contact piece 34 is connected to the inner side of the sleeve 26 through an elastic connecting rod 33, the contact piece 34 is attached to the surface of the first spring 15 at the upper edge of the rubber damper strip 28, a clip piece 36 is connected to the contact piece 34 through a support rod 35, and the clip piece 36 is in contact with the adjusting bolt 27. When the adjusting bolt 27 on one side is excessively adjusted to cause the rubber damping strip 28 to extrude the first spring 15 to generate radial bending deformation, the contact piece 34 rotates downwards along with the deformation of the first spring 15, so as to drive the clamping piece 36 to extrude with the adjusting bolt 27, and the clamping piece 36 locks the adjusting bolt 27, and the adjusting damping of the adjusting bolt 27 is rapidly increased. This makes it possible to grasp the state of the first spring 15 with the rotating hand feeling of the adjusting bolt 27 in the state where the sleeve 26 shields the first spring 15, thereby ensuring that the first spring 15 is kept in the upright state.

The devices such as lamp beads used in the present invention are fully disclosed in the patent documents cited in the background art, and belong to the mature prior art, and the detailed structure thereof is not described in detail herein.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A shadowless lamp comprising a circular support plate (1), characterized in that: the lower part of the supporting plate (1) is vertically connected with a plurality of first connecting rods (2) which are annularly arranged, the lower part of each first connecting rod (2) is vertically connected with a second connecting rod (19), the plurality of second connecting rods (19) are annularly arranged, the inner sides of the plurality of second connecting rods (19) are fixedly connected with a fixed pipe (18), the outer sides of the adjacent second connecting rods (19) are mutually connected through a third connecting rod (20), the bottom of each fixed pipe (18) is connected with a fixed seat (16), the top of each fixed pipe (18) is movably inserted with an inserted rod (21), the upper part of each inserted rod (21) is connected with a disc (8), the center of the top surface of each disc (8) is connected with a rack (3), the lower part of the supporting plate (1) is also connected with a first support (4) and a motor (6), the first support (4) is axially connected with a first gear (5), and the motor (6) is connected, two sides of the rack (3) are respectively meshed with the first gear (5) and the second gear (7), a lantern ring (10) is movably sleeved on the third connecting rod (20), the bottom of the lantern ring (10) is fixedly connected with a sector plate (11), a plurality of first lamp beads (12) are connected below the sector plate (11), the inner side of the sector plate (11) is connected with a fixing plate (14), a first spring (15) is connected between the fixing plate (14) and a fixing seat (16), and a connecting rope (9) is connected between the inner side of the sector plate (11) and the disc (8);

the concave surface of the sector plate (11) faces downwards, the inner side of the sector plate (11) is fixedly connected with a connecting ring (13), and the connecting rope (9) is wound on the connecting ring (13);

the bottom surface of the fixed seat (16) is spherical, wherein the convex surface faces downwards, and a plurality of second lamp beads (17) are uniformly connected on the bottom surface of the fixed seat (16);

a plurality of third lamp beads (23) are connected above the fixing plate (14), and the bottom of the disc (8) is a mirror surface;

the fixing plate (14) comprises two mutually connected mounting plates (24), an included angle between the two mounting plates (24) is 140 degrees, the two mounting plates (24) are both mutually connected with the sector plate (11), the included angle between the two mounting plates (24) faces downwards, the third lamp bead (23) is positioned on the top surface of the mounting plates (24), the edge of the disc (8) is provided with a circular table part (25), the circular table part (25) is a circular table-shaped outer cylindrical surface, an upper opening is larger than a lower opening, and the surface of the circular table part (25) is a mirror surface;

a sleeve (26) is sleeved on the outer side of the first spring (15), the sleeve (26) is fixed to the top of the fixed seat (16), the side wall of the sleeve (26) is connected with a rubber damping strip (28) through an adjusting bolt (27), and the rubber damping strip (28) is in contact with the first spring (15);

the surface of the rubber damping strip (28) is provided with a groove (29), the groove (29) is internally connected with a limiting strip (31) through a second spring (30), and the surface of the limiting strip (31) is provided with a flange (32) which is mutually clamped with the first spring (15).

2. The shadowless lamp of claim 1, wherein: a round hole (22) is formed in the center of the supporting plate (1), and the rack (3) penetrates through the round hole (22).