CN108730322B - Rotating structure and operating lamp - Google Patents

Rotating structure and operating lamp Download PDF

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Publication number
CN108730322B
CN108730322B CN201710258870.2A CN201710258870A CN108730322B CN 108730322 B CN108730322 B CN 108730322B CN 201710258870 A CN201710258870 A CN 201710258870A CN 108730322 B CN108730322 B CN 108730322B
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Prior art keywords
rotating
limiting
rotating member
rotating shaft
angle
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CN201710258870.2A
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CN108730322A (en
Inventor
史雷
梁云芳
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Nanjing Mindray Bio Medical Electronics Co Ltd
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Nanjing Mindray Bio Medical Electronics Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/20—Lighting for medical use
    • F21W2131/205—Lighting for medical use for operating theatres

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The invention relates to a rotating structure and an operating lamp. The rotating structure comprises a fixing piece and a rotating shaft extending from the fixing piece, and a first rotating piece and a second rotating piece which are arranged on the rotating shaft in a rotating mode are rotated, a first limiting mechanism is arranged between the first rotating piece and the fixing piece, the first limiting mechanism is used for limiting the rotating angle of the first rotating piece relative to the fixing piece, a second limiting mechanism is arranged between the second rotating piece and the first rotating piece, and the second limiting mechanism is used for limiting the rotating angle of the second rotating piece relative to the first rotating piece. The rotating structure can be applied to occasions with rotating ranges larger than 360 degrees and also with rotating ranges which have limits to avoid unlimited rotation in the same direction, and is simple in structure and easy to realize.

Description

Rotating structure and operating lamp
Technical Field
The invention relates to the field of medical equipment, in particular to an operating lamp and a rotating structure, which can be applied to the operating lamp to enable the operating lamp to have a larger rotating angle.
Background
In medical instruments, some rotating joints need to run uninterrupted wires such as power lines, signal lines, optical fibers and the like. These wires cannot withstand unlimited twisting, which would otherwise be possible. In order to solve the problem, some products limit the rotation angle of the joint, and cannot realize the rotation of a whole circle (360 degrees), but the mode limits the working range of the device, and a blind area which cannot be covered by the device exists; other products realize large-angle torsion by adopting movable interface components (such as a rotary sliding ring) or a circumferential movable mechanism and the like, and although the problem of using a blind area can be solved, the mode is complex in structure and high in cost.
Disclosure of Invention
Therefore, it is necessary to provide a rotation structure and an operating lamp using the rotation structure for overcoming the defects in the prior art, which not only can enable the rotation range of the operating lamp to be larger than 360 degrees, and have no illumination blind area, but also have the characteristics of simple structure and low cost.
A rotating structure comprises a fixed part, a rotating shaft extending from the fixed part, a first rotating part and a second rotating part, wherein the first rotating part and the second rotating part are rotatably arranged on the rotating shaft; form first stop gear between first rotating member and the mounting, first stop gear is used for restricting the turned angle of first rotating member relative mounting, form second stop gear between second rotating member and the first rotating member, second stop gear is used for restricting the turned angle of second rotating member relative first rotating member.
In one embodiment, the first limiting mechanism includes a first protrusion and a first block, the first protrusion is convexly disposed on an end portion of the fixed member facing the first rotating member, the first block is convexly disposed on an end portion of the first rotating member facing the fixed member, and the first protrusion and the first block are engaged with each other in a rotation circumferential direction of the first rotating member to limit a rotation angle of the first rotating member relative to the fixed member.
In one embodiment, the second limiting mechanism includes a second protrusion and a second block, the second protrusion is disposed on an end portion of the first rotating member facing the second rotating member, the second block is disposed on an end portion of the second rotating member facing the first rotating member, and the second protrusion and the second block are engaged with each other in a rotation direction of the second rotating member to limit a rotation angle of the second rotating member relative to the first rotating member.
In one embodiment, the second rotating pieces are multiple and sequentially arranged on the rotating shaft in a rotating mode, and a limiting mechanism used for limiting a relative rotating angle is arranged between every two adjacent second rotating pieces.
In one embodiment, the rotating shaft comprises a first rotating shaft extending from one end of the fixing piece and a second rotating shaft extending from the other end of the fixing piece, the first rotating piece is rotatably arranged on the first rotating shaft, the second rotating piece comprises a body rotatably arranged on the second rotating shaft and a frame body extending from the body, the second limiting mechanism comprises a second protrusion arranged on the peripheral wall of the first rotating piece and a second clamping block arranged on the frame body, and the second protrusion and the second clamping block are clamped on the rotating periphery of the second rotating piece to limit the rotating angle of the second rotating piece relative to the first rotating piece.
In one embodiment, the first limiting mechanism includes a first protrusion and a first block, the first protrusion is convexly disposed on an end portion of the fixed member facing the first rotating member, the first block is convexly disposed on an end portion of the first rotating member facing the fixed member, and the first protrusion and the first block are engaged with each other in a rotation circumferential direction of the first rotating member to limit a rotation angle of the first rotating member relative to the fixed member.
In one embodiment, the first rotating pieces are multiple and sequentially arranged on the rotating shaft in a rotating mode, and a limiting mechanism used for limiting a relative rotating angle is arranged between every two adjacent first rotating pieces.
In one embodiment, the corresponding central angle of the first limiting mechanism in the circumferential direction of the rotating shaft is A, and the rotating angle of the first rotating part relative to the fixed part is 360-A.
In one embodiment, the central angle of the second limiting mechanism in the circumferential direction of the rotating shaft is B, the rotating angle of the second rotating member relative to the first rotating member is 360-B, and the rotating angle of the second rotating member around the rotating shaft is 720- (A + B).
In one embodiment, the rotating shaft is provided with a shaft hole which axially penetrates through the rotating shaft.
A rotating structure comprises a rotating shaft, a fixed part fixedly arranged on the rotating shaft and a plurality of rotating parts sequentially and rotatably arranged on the rotating shaft; each rotating piece comprises a first limiting part and a second limiting part, and the fixing piece is provided with a third limiting part; the third limiting part of the fixing part is matched with the first limiting part of the adjacent rotating part and is used for limiting the rotating angle of the adjacent rotating part relative to the fixing part; the second limiting part of the front rotating part of the plurality of rotating parts is matched with the first limiting part of the rear rotating part, and is used for limiting the rotating angle between every two rotating parts of the plurality of rotating parts.
In one embodiment, each of the plurality of rotating members includes a first end and a second end, and the first and second limiting portions are respectively disposed at the first and second ends; one of the first limiting part and the second limiting part is a protrusion, the other is a clamping block, the protrusion and the clamping block are convexly arranged at the first end of the rotating piece and the second end of the rotating piece, and the protrusion and the clamping block are clamped in the rotating circumferential direction of the rotating piece so as to limit the rotating angle of the rotating piece around the rotating shaft.
In one embodiment, the third position-limiting portion is a protrusion or a block provided at an end of the fixing member.
The utility model provides an operating lamp, includes lamp pole, lamp body and foretell revolution mechanic, the lamp pole with the mounting is connected, the lamp body is connected with the second rotating member, the lamp body passes through revolution mechanic can rotate around the lamp pole and be greater than 360 degrees.
Above-mentioned rotation structure and operating lamp can make the turned angle of second rotating member relative mounting become to be greater than 360 degrees, and rotation range has the limit again and avoids unlimited rotation in same direction through duplicating the stop gear between first rotating member and the mounting between second rotating member and first rotating member, and this simple structure easily realizes.
Drawings
Fig. 1 is a schematic view of a rotating structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of a rotating structure according to another embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an operating lamp according to an embodiment of the invention.
Detailed Description
As shown in fig. 1, a rotating structure according to an embodiment of the present invention includes a fixed member 10, a rotating shaft 20, a first rotating member 30, and a second rotating member 40.
The rotating shaft 20 extends from the fixed member 10, and the first rotating member 30 and the second rotating member 40 are rotatably disposed on the rotating shaft 20. The fixing member 10 may be used to fixedly couple a first subject matter, and the second rotating member 40 may be used to fixedly couple a second subject matter. The first subject matter can be relatively rotated with respect to the second subject matter by the rotation of the first rotating member 30 and the second rotating member 40.
In one embodiment, the fixing member 10 is rod-shaped, and may be cylindrical or tubular. The shaft 20 extends from one or both ends of the fixing member 10. A shaft hole may be axially formed in the rotating shaft 20, and the shaft hole may be penetrated by a wire rod connecting the first target object and the second target object. In the embodiment shown in fig. 1, the shaft 20 extends from one end of the fixing member 10. The first rotating member 30 and the second rotating member 40 are both sleeved on the rotating shaft 20. The first rotating member 30 and the second rotating member 40 are both rotatable about the rotating shaft 20 with respect to the stationary member 10.
A first limiting mechanism is arranged between the first rotating member 30 and the fixed member 10, and the first limiting mechanism is used for limiting the rotation angle of the first rotating member 30 relative to the fixed member 10.
Specifically, the first limiting mechanism includes a first protrusion 101 and a first latch 301, and the first protrusion 101 is convexly disposed on an end of the fixed member 10 facing the first rotating member 30. That is, the first protrusion 101 and the rotating shaft 20 are located at the same end of the fixing member 10, and the first protrusion 101 is disposed on the outer circumference of the rotating shaft 20. The first projection 101 may be separated from the rotation shaft 20 in a radial direction, or may be directly formed on the outer circumferential wall of the rotation shaft 20. The first latch 301 is protruded from an end of the first rotating member 30 facing the fixed member 10, and the first protrusion 101 and the first latch 301 are engaged with each other in a rotation direction of the first rotating member 30 to limit a rotation angle of the first rotating member 30 relative to the fixed member 10. The first limiting mechanism is formed in the rotational axis direction.
In this embodiment, the first projection 101 is integrally formed with the fixing member 10. The first latch 301 is integrally formed with the first rotating member 30. The first rotating member 30 is annular and is disposed on the rotating shaft 20. The first latch 301 may extend from one axial end of the first rotating element 30 toward the fixing element 10. After the first rotating member 30 is positioned in the axial direction of the rotating shaft 20, the range of rotation of the first rotating member 30 around the rotating shaft 20 is limited by the first limiting mechanism, that is, when one circumferential side of the first latch 301 abuts against one circumferential side of the first protrusion 101, the first rotating member 30 cannot rotate continuously in that direction. After the reversing rotation, when the other circumferential side of the first latch 301 abuts against the other circumferential side of the first protrusion 101, the reversing rotation cannot be continued.
The central angle of the first limiting mechanism in the circumferential direction of the rotating shaft 20 is a, and the central angle a is determined by the arc length occupied by the first latch 301 and the first protrusion 101 in the circumferential direction of the rotating shaft 20. The rotation angle of the first rotating member 30 relative to the fixed member 10 is determined by the central angle a, i.e. the rotation angle is 360-a.
A second limiting mechanism is arranged between the second rotating member 40 and the first rotating member 30, and the second limiting mechanism is used for limiting the rotation angle of the second rotating member 40 relative to the first rotating member 30.
Specifically, the second limiting mechanism includes a second protrusion 302 and a second latch 402, and the second protrusion 302 is protruded on an end of the first rotating member 30 facing the second rotating member 40. That is, the second protrusion 302 and the first latch 301 are respectively provided at both axial ends of the first rotating member 30. The positions of the second protrusion 302 and the first latch 301 in the circumferential direction of the first rotating member 30 may be the same or different. In the structure shown in fig. 1, the second projection 302 and the first latch 301 are located at the same circumferential position. The second latch 402 is protruded on an end of the second rotating member 40 facing the first rotating member 30, and the second protrusion 302 and the second latch 402 are engaged in a rotation direction of the second rotating member 40 to limit a rotation angle of the second rotating member 40 with respect to the first rotating member 30. The second limiting mechanism is formed in the rotational axis direction.
In this embodiment, the second protrusion 302 is integrally formed with the first rotating member 30, and the second latch 402 is integrally formed with the second rotating member 40. The second rotating member 40 is cylindrical and is fitted over the rotating shaft 20. The second latch 402 may extend from one axial end of the second rotating member 40 toward the first rotating member 30. After the second rotating member 40 is positioned in the axial direction of the rotating shaft 20, the range of rotation of the second rotating member 40 around the rotating shaft 20 is limited by the second limiting mechanism, that is, when the circumferential side of the second latch 402 abuts against the circumferential side of the second protrusion 302, the second rotating member 40 cannot rotate continuously in that direction. After the reversing rotation, when the other circumferential side of the second latch 402 abuts against the other circumferential side of the second protrusion 302, the reversing rotation cannot be continued.
The central angle of the second limiting mechanism in the circumferential direction of the rotating shaft 20 is B, and the central angle B is determined by the arc length occupied by the second fixture block 402 and the second protrusion 302 in the circumferential direction of the rotating shaft 20. The rotation angle of the second rotating member 40 relative to the first rotating member 30 is determined by a central angle B, i.e. the rotation angle is 360-B.
In this embodiment, the rotation angle of the second rotating member 40 with respect to the fixed member 10 can be made larger than 360 degrees by duplicating the stopper mechanism between the first rotating member 30 and the fixed member 10 between the second rotating member 40 and the first rotating member 30. The rotating structure can be applied to occasions with rotating ranges larger than 360 degrees and also with rotating ranges which have limits to avoid unlimited rotation in the same direction, and is simple in structure and easy to realize. When the central angle of the first limiting mechanism in the circumferential direction of the rotating shaft 20 is a, and the central angle of the second limiting mechanism in the circumferential direction of the rotating shaft 20 is B, the rotating angle of the second rotating member 40 relative to the fixed member 10, that is, the total rotating angle of the second rotating member 40 about the rotating shaft is 720- (a + B). Through the proper setting of the central angles of the first limiting mechanism and the second limiting mechanism, the rotation angle in the required rotation range can be obtained.
When a larger range of rotation is desired, one or more additional rotating members (first or second rotating members) may be added. For example, a plurality of second rotating members are additionally arranged, the second rotating members are sequentially arranged on the rotating shaft in a rotating mode, and a limiting mechanism used for limiting the relative rotating angle is arranged between every two adjacent second rotating members. These limiting mechanisms may be similar to the first limiting mechanism and the second limiting mechanism, and are not described in detail.
As shown in fig. 2, another embodiment of the present invention provides a rotating structure, which includes a fixed member 11, a rotating shaft 21, a first rotating member 31, and a second rotating member 41.
The rotating shaft 21 extends from the fixed member 11, and the first rotating member 31 and the second rotating member 41 are rotatably disposed on the rotating shaft 21. The fixing member 11 may be used to fixedly couple a first subject matter, and the second rotating member 41 may be used to fixedly couple a second subject matter. The first subject matter and the second subject matter can be relatively rotated by the rotation of the first rotating member 31 and the second rotating member 41.
In one embodiment, the fixing member 11 is rod-shaped, and may be cylindrical or tubular. The shaft 21 includes a first shaft 211 extending from one end of the fixing member 11 and a second shaft 212 extending from the opposite end of the fixing member 11. The first rotating member 31 is rotatably disposed on the first rotating shaft 211, and the second rotating member 41 is rotatably disposed on the second rotating shaft 212. A shaft hole 210 is axially formed in the rotating shaft 21 and penetrates through the rotating shaft 21, and the shaft hole 210 is through which a wire rod for connecting the first target object and the second target object can pass.
A first limiting mechanism is arranged between the first rotating member 31 and the fixed member 11, and the first limiting mechanism is used for limiting the rotation angle of the first rotating member 31 relative to the fixed member 11.
Specifically, the first limiting mechanism includes a first protrusion 111 and a first latch 311, and the first protrusion 111 is protruded on an end of the fixed member 11 facing the first rotating member 31. The first protrusion 111 and the first rotating shaft 211 are located at the same end of the fixing member 11, and the first protrusion 111 is disposed on the outer circumference of the first rotating shaft 211. The first projection 111 may be separated from the first rotation shaft 211 in the radial direction, or may be directly formed on the outer circumferential wall of the first rotation shaft 211. The first latch 311 is protruded at an end of the first rotating member 31 facing the fixed member 11, and the first protrusion 111 and the first latch 311 are engaged in a rotation direction of the first rotating member 31 to limit a rotation angle of the first rotating member 31 relative to the fixed member 11. The first limiting mechanism is formed in the rotational axis direction.
In this embodiment, the first protrusion 111 is integrally formed with the fixing member 11. The first latch 311 is integrally formed with the first rotating member 31. The first rotating member 31 is annular and is disposed on the first rotating shaft 211. The first latch 311 can extend from one axial end of the first rotating member 31 toward the fixing member 11. After the first rotating member 31 is positioned in the axial direction of the first rotating shaft 211, the rotating range of the first rotating member 31 around the first rotating shaft 211 is limited by the first limiting mechanism, that is, when the circumferential side of the first latch 311 abuts against the circumferential side of the first protrusion 111, the first rotating member 31 cannot rotate continuously in the direction. After the reversing rotation, when the other circumferential side of the first latch 3101 abuts against the other circumferential side of the first protrusion 111, the reversing rotation cannot be continued.
The rotation angle of the first rotating member 31 relative to the fixed member 11 is also determined by the corresponding central angle of the first limiting mechanism in the circumferential direction of the first rotating shaft 211. The central angle of the first limiting mechanism in the circumferential direction of the first rotating shaft 211 is determined by the arc length occupied by the first latch 311 and the first protrusion 111 in the circumferential direction of the first rotating shaft 211.
A second limiting mechanism is arranged between the second rotating member 41 and the first rotating member 31, and the second limiting mechanism is used for limiting the rotation angle of the second rotating member 41 relative to the first rotating member 31.
Specifically, the second rotating member 41 includes a body 411 rotatably disposed on the second rotating shaft 212 and a frame 412 extending from the body 411. The frame body 412 extends along the second rotating shaft 212 toward the first rotating member 31. The second limiting mechanism includes a second protrusion 312 disposed on the outer peripheral wall of the first rotating member 31 and a second latch 413 disposed on the frame body 412. The second protrusion 312 and the second latch 413 are engaged in the rotation direction of the second rotating member 40 to limit the rotation angle of the second rotating member 41 relative to the first rotating member 31. The second limiting mechanism is formed in the rotational radial direction.
In this embodiment, the second protrusion 312 is integrally formed with the first rotating member 31, and the second latch 413 is integrally formed with the frame body 412 of the second rotating member 41. The body 411 of the second rotating member 41 is substantially cylindrical and is sleeved on the second rotating shaft 212. The second latch 413 is provided in the radial direction of the first rotating member 31, and the second projection 312 is provided on the outer circumferential wall of the first rotating member 31. After the second rotating element 41 is positioned in the axial direction of the second rotating shaft 212, the rotating range of the second rotating element 41 around the second rotating shaft 212 is limited by the second limiting mechanism, that is, when the circumferential side of the second fixture block 413 abuts against the circumferential side of the second protrusion 312, the second rotating element 41 cannot rotate continuously in the direction. After the reversing rotation, when the other circumferential side of the second latch 413 abuts against the other circumferential side of the second protrusion 312, the reversing rotation cannot be continued.
The rotation angle of the second rotating member 41 with respect to the first rotating member 31 is also determined by the corresponding central angle of the second limiting mechanism in the circumferential direction of the second rotating shaft 212. The central angle of the second limiting mechanism in the circumferential direction of the second rotating shaft 212 is determined by the arc length occupied by the second fixture block 413 and the second protrusion 312 in the circumferential direction of the second rotating shaft 212.
The arrangement of the first rotating part, the second rotating part and the corresponding first limiting mechanism and the second limiting mechanism can also enable the rotation angle of the second rotating part relative to the fixed part to be larger than 360 degrees without complex structural design.
As shown in fig. 3, the present invention further provides an operating lamp, which comprises a lamp post 50, a lamp body 60 and a rotating structure provided in the embodiment shown in fig. 1. The lamp post 50 is connected to the fixing member 10, and the lamp body 60 is connected to the second rotating member 40. By using the above-mentioned rotation structure, the lamp body 60 can rotate more than 360 degrees relative to the lamp post 50. The cable required by the lamp body 60 is inserted into the rotating shaft 10, and due to the limitation of the angle range of the rotating structure, the cable is not damaged due to excessive twisting of the cable when the lamp body 60 is opposite to the lamp post 50.
The light pole 50 may be a surgical light C-arm that may be reattached to various types of suspension brackets. The lamp body 60 includes a housing 61 connected to the second rotating member 40, a bulb 62 disposed in the housing 61, and a handle 63 connected to the housing 61. By operating handle 63, lamp body 60 can be rotated with respect to lamp post 50.
The invention can provide a rotating structure capable of realizing a large-range rotating angle. The rotating structure further provides one or more rotating parts on the basis of the fixed part and the rotating part which needs to be rotationally arranged to enable the connected object to be rotationally moved, and axial rotation limiting or radial rotation limiting can be adopted between the fixed part and the adjacent rotating part and between the rotating parts, so that the rotating part connected with the object can rotate around the rotating shaft in a large range, for example, the rotating speed exceeds 360 degrees.
The rotating structure comprises a rotating shaft, a fixing piece fixedly arranged on the rotating shaft and a plurality of rotating pieces sequentially arranged in a rotating mode. The fixed member may be used to fixedly couple a first subject matter, and one of the plurality of rotating members may be used to fixedly couple a second subject matter. The first subject matter and the second subject matter can be relatively rotated by the rotation of the plurality of rotating members. The rotating shaft can extend out from one end part of the fixing piece. The rotating parts are all sleeved on the rotating shaft and can rotate around the rotating shaft relative to the fixing part.
The mounting is provided with the spacing portion of third, and every rotating member includes first spacing portion and the spacing portion of second. The third limiting part of the fixing part is matched with the first limiting part of the adjacent rotating part and used for limiting the rotating angle of the adjacent rotating part relative to the fixing part. The second limiting part of the front rotating part of the plurality of rotating parts is matched with the first limiting part of the rear rotating part, and is used for limiting the rotating angle between every two rotating parts of the plurality of rotating parts.
The first limiting part can be arranged at the first end of the rotating part facing the fixing part, the third limiting part can be arranged at the end part of the fixing part facing the adjacent rotating part, the first limiting part can be a bulge or a clamping block, and the third limiting part is correspondingly a clamping block or a bulge. The protrusion and the latch are engaged in the rotational direction of the adjacent rotating member to restrict the rotational angle of the rotating member with respect to the stationary member. When the rotating member is positioned in the axial direction of the rotating shaft, the rotating range of the rotating member around the rotating shaft is limited by the third limiting part on the fixing member, namely, when one circumferential side of the first clamping limiting part is abutted against one circumferential side of the third limiting part, the rotating member cannot continue to rotate in the direction. After the reversing rotation, when the other circumferential side of the first limiting part abuts against the other circumferential side of the third limiting part, the reversing rotation cannot be continued.
The central angle of the first limiting part corresponding to the circumferential direction of the rotating shaft is a1The central angle of the third limiting part corresponding to the circumferential direction of the rotating shaft is b, and the central angle is determined by the arc length occupied by the first limiting part and the third limiting part in the circumferential direction of the rotating shaft respectively. The rotation angle of the adjacent rotating parts relative to the fixed part is defined by a central angle a1And b, i.e. a rotation angle of 360- (a)1+b)。
In one embodiment, axial rotational stops are used between each rotating member. The first rotating member may be provided with a first limiting portion facing the first end of the first rotating member. A plurality of rotating members that set gradually form end to end complex structure, and the spacing portion of head end cooperates with the spacing portion of preceding rotating member tail end, carries on spacingly to relative motion between them, so analogizes.
Specifically, the second limiting portion may also be a protrusion or a block. The first limiting part and the second limiting part are respectively arranged at two axial ends of a rotating piece. The positions of the first limiting part and the second limiting part in the circumferential direction of one rotating piece can be the same or different. The arc length occupied by the first limiting part and the second limiting part in the circumferential direction of the rotating shaft, namely the formed central angles can be the same or different. The second limiting part of the front rotating piece of the plurality of rotating pieces is clamped with the first limiting part of the rear rotating piece in the rotating circumferential direction, and the second limiting part is used for limiting the rotating angle between every two rotating pieces.
When the latter rotating member is positioned in the axial direction of the rotating shaft, the rotating range of the latter rotating member around the rotating shaft is limited by the second limiting part on the former rotating member, namely when one circumferential side of the first limiting part of the latter rotating member is abutted against one circumferential side of the second limiting part of the former rotating member, the latter rotating member cannot continue to rotate towards the direction. After the reversing rotation, when the other circumferential side of the first limiting part of the subsequent rotating member abuts against the other circumferential side of the second limiting part of the previous rotating member, the reversing rotation cannot be continued.
In one embodiment, the rotating members, except for the rotating member connected to the second target, are axially rotated for limiting (the structure is not described above); the rotating member to which the second subject matter is attached (referred to as a specific rotating member for convenience of description) is engaged with another rotating member in a manner of radial rotation limitation. The particular rotating member may be provided with an extension wall disposed at least partially around the axis of rotation, the extension wall extending to align with a peripheral wall of the other rotating member on the axis of rotation. The first limiting part of the specific rotating element can be a block or a bulge arranged on the extending wall, and the second limiting part of the rotating element in limiting fit with the first limiting part can be a bulge or a block arranged on the peripheral wall. When the specific rotating body rotates to drive the extension wall to rotate, the first limiting part is limited by the second limiting part on the outer peripheral wall of the other rotating body in the rotating direction.
For the axial rotation limiting situation, the corresponding central angle of the first limiting part in the circumferential direction of the rotating shaft is a1A second limit partThe corresponding central angle in the circumferential direction of the rotating shaft is a2The central angle is determined by the arc length occupied by the first limiting part and the second limiting part in the circumferential direction of the rotating shaft respectively. The rotation angle of the latter rotating part relative to the former rotating part is defined by a central angle a1+a2Determining that the rotation angle is 360- (a)1+a2). The total rotation angle of the latter rotary member about the rotary shaft is 720- (2 a)1+a2+ b). Therefore, the rotating member to which the second target is connected can be rotated over a wide range of angles by copying the positioning portion on the rotating member. For the radial rotation limiting situation, the central angle of the first limiting part on the extending wall corresponding to the center of the rotating shaft is a3The second limiting part has a central angle a corresponding to the circumferential direction of the peripheral wall4The rotation angle of the specific rotating member relative to the rotating member engaged therewith is defined by a3+a4Determining that the rotation angle is 360- (a)3+a4)。
The corresponding central angles of the first limiting part, the second limiting part and the third limiting part in the circumferential direction of the rotating shaft can be the same or different. Through the design of central angle, can be nimble the rotation range that is connected with the rotating member of second subject matter.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (8)

1. A rotating structure is applied to an operating lamp and used for connecting a first target object and a second target object in the operating lamp, and is characterized by comprising a fixing part, a rotating shaft extending from the fixing part, a first rotating part and a second rotating part, wherein the first rotating part and the second rotating part are rotatably arranged on the rotating shaft; a first limiting mechanism is formed between the first rotating part and the fixing part and used for limiting the rotating angle of the first rotating part relative to the fixing part, a second limiting mechanism is formed between the second rotating part and the first rotating part and used for limiting the rotating angle of the second rotating part relative to the first rotating part, wherein the first limiting mechanism is an axial limiting mechanism, the second limiting mechanism is a radial limiting mechanism, the rotating shafts comprise a first rotating shaft extending from one end of the fixing part and a second rotating shaft extending from the other end of the fixing part, the first rotating part is rotatably arranged on the first rotating shaft, the second rotating part comprises a body rotatably arranged on the second rotating shaft and a frame body extending from the body, and the second limiting mechanism comprises a second bulge arranged on the peripheral wall of the first rotating part and a second clamping block arranged on the frame body, the second protrusion and the second clamping block are clamped in the rotating circumferential direction of the second rotating piece.
2. The rotating structure according to claim 1, wherein the first limiting mechanism includes a first protrusion and a first block, the first protrusion is protruded on an end of the fixed member facing the first rotating member, the first block is protruded on an end of the first rotating member facing the fixed member, and the first protrusion and the first block are engaged in a rotation direction of the first rotating member to limit a rotation angle of the first rotating member relative to the fixed member.
3. The rotating structure according to claim 1, wherein the first rotating members are provided in plurality and sequentially rotatably disposed on the rotating shaft, and a limiting mechanism for limiting a relative rotating angle is disposed between each two adjacent first rotating members.
4. The rotating structure according to claim 1, wherein the first limiting mechanism has a central angle a corresponding to the circumferential direction of the rotating shaft, and the rotating angle of the first rotating member relative to the fixed member is 360 ° -a.
5. The rotating structure according to claim 4, wherein the second limiting mechanism has a central angle B corresponding to a circumferential direction of the rotating shaft, the second rotating member has a rotation angle of 360 ° -B with respect to the first rotating member, and the second rotating member has a rotation angle of 720 ° - (A + B) about the rotating shaft.
6. A rotating structure is applied to an operating lamp and is used for connecting a first target object and a second target object in the operating lamp, and is characterized by comprising a rotating shaft, a fixing part fixedly arranged on the rotating shaft and a plurality of rotating parts sequentially and rotatably arranged; each rotating piece comprises a first limiting part and a second limiting part, and the fixing piece is provided with a third limiting part; the fixed part is used for fixedly connecting a first object, and one of the rotating parts is used for fixedly connecting a second object; the third limiting part of the fixing part and the first limiting part of the adjacent rotating part form axial rotation limiting fit in the rotating axial direction and are used for limiting the rotating angle of the adjacent rotating part relative to the fixing part; the second limiting part of the previous rotating part of the plurality of rotating parts is matched with the first limiting part of the next rotating part, and is used for limiting the rotating angle between every two rotating parts, wherein the rotating parts except the rotating part connected with the second target are matched in an axial rotating limiting mode in the rotating axial direction, the rotating part connected with the second target is matched with the other rotating part in a radial rotating limiting mode in the rotating radial direction, the rotating part comprises a first rotating part and a second rotating part, the second limiting part of the first rotating part is a bulge or a clamping block arranged on the peripheral wall, the second rotating part is provided with an extending wall at least partially arranged around the rotating shaft, and the first limiting part of the second rotating part is a clamping block or a bulge arranged on the extending wall.
7. The rotating structure according to claim 6, wherein the first limiting portion of the first rotating member is a protrusion or a block disposed at a first end of the first rotating member facing the fixing member, and the third limiting portion is a protrusion or a block disposed at an end of the fixing member facing the first rotating member.
8. An operating lamp, comprising a lamp post, a lamp body and the rotating structure of any one of claims 1 to 5, wherein the lamp post is connected to the fixed member, the lamp body is connected to the second rotating member, and the lamp body can rotate around the lamp post by more than 360 degrees through the rotating structure.
CN201710258870.2A 2017-04-19 2017-04-19 Rotating structure and operating lamp Active CN108730322B (en)

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CN111281431B (en) * 2018-12-06 2023-06-13 深圳迈瑞生物医疗电子股份有限公司 Rotating device and mammary gland machine
WO2021088726A1 (en) * 2019-11-07 2021-05-14 苏州欧普照明有限公司 Connector and lamp system

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CN201198865Y (en) * 2008-04-08 2009-02-25 连鋐科技股份有限公司 Single-support and double-blocking point pivot device
CN103062722A (en) * 2011-10-24 2013-04-24 隆达电子股份有限公司 Rotation angle adjusting device and lamp with rotation angle using same

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CN201198865Y (en) * 2008-04-08 2009-02-25 连鋐科技股份有限公司 Single-support and double-blocking point pivot device
CN103062722A (en) * 2011-10-24 2013-04-24 隆达电子股份有限公司 Rotation angle adjusting device and lamp with rotation angle using same

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