CN220436407U - Balance arm rotating device of operation shadowless lamp - Google Patents
Balance arm rotating device of operation shadowless lamp Download PDFInfo
- Publication number
- CN220436407U CN220436407U CN202322150244.5U CN202322150244U CN220436407U CN 220436407 U CN220436407 U CN 220436407U CN 202322150244 U CN202322150244 U CN 202322150244U CN 220436407 U CN220436407 U CN 220436407U
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- shadowless lamp
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- 238000013016 damping Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model relates to a balance arm rotating device of an operation shadowless lamp, which belongs to the technical field of medical shadowless lamps. Simple structure, the operating personnel equipment of being convenient for and maintenance.
Description
Technical Field
The utility model relates to the technical field of medical shadowless lamps, in particular to a balance arm rotating device of an operation shadowless lamp.
Background
The medical shadowless lamp is a common lighting device in the field of modern medicine, the lighting effect of the medical shadowless lamp has a certain influence on the operation of doctors, and particularly in the operation process, the medical shadowless lamp needs to be rotationally regulated to achieve the optimal lighting effect. The medical shadowless lamp is generally hung on the roof, and the rotating arm of the medical shadowless lamp rotates around the operating table, so that illumination can be provided in any range of 360 degrees of the circumference of the operating table, and in actual use, the rotating arm needs to be flexibly rotated and can be stably fixed.
A medical shadowless lamp rotating arm is disclosed in prior art publication No. CN 204438041U. The medical shadowless lamp rotating arm comprises a base, a central shaft, a bearing assembly, a cantilever, damping screws, a power supply device and a locking nut, wherein the central shaft is fixedly connected with the base, the cantilever is connected with the central shaft through the bearing assembly, the damping screws penetrate through the cantilever and are abutted to the central shaft, the damping screws are multiple in number, the damping screws are arranged at intervals, the power supply device is fixedly connected with the central shaft and fixedly connected with the cantilever, and the locking nut is arranged at one end of the central shaft. The rotating arm of the medical shadowless lamp has the advantages of flexibility in rotation, no self-drifting phenomenon and reasonable power supply connection structure.
However, the rotating arm structure of the shadowless lamp is complex, parts are more, accessories cannot be conveniently adjusted or replaced, and the application range is narrow.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model solves the problems that the prior balance arm of the shadowless lamp has a complex structure and is inconvenient to replace and maintain accessories, and provides a rotation device of the balance arm of the operation shadowless lamp, which comprises a rotation unit arranged in a rotation arm and a fixing unit arranged in a fixing arm, and is characterized by further comprising a connecting unit, wherein the fixing unit is rotationally connected with the rotation unit through the connecting unit;
the fixing unit comprises a fixing ring, an outer cylinder body and an inner cylinder body, wherein the outer cylinder body and the inner cylinder body are concentric, and the outer cylinder body is fixedly connected with the inner cylinder body through the fixing ring;
the rotating unit comprises a rotating cylinder, and a clamping block is arranged on the inner wall of the rotating cylinder;
the connecting unit comprises a limiting ring, a connecting pipe, a fixing nut, a torsion spring and a damping adjusting block, wherein the limiting ring is fixedly arranged on one side of the connecting pipe, the limiting ring is abutted against a clamping block, a first clamping ring is fixedly arranged on one side of the connecting pipe, which is close to the limiting ring, and outwards extends to form an extension pipe, the outer wall of the extension pipe is provided with external threads, the extension pipe is in threaded connection with the fixing nut, the other end of the connecting pipe penetrates through an inner cylinder body and outwards extends to form a preset length, the damping adjusting block is arranged in the outer cylinder body and is connected with the end face of the connecting pipe through an adjusting screw, the torsion spring is wound on the outer side of the connecting pipe and the inner cylinder body, and two ends of the torsion spring are respectively connected to the fixing ring and the limiting ring.
Further, the length of the inner cylinder body is smaller than that of the outer cylinder body, and the outer diameter of the inner cylinder body is equal to the outer diameter of the first clamping ring.
Further, the side wall of the first clamping ring is fixedly provided with a limiting block for limiting the torsion spring to move.
Further, the damping friction plate is arranged between the damping adjusting block and the fixed ring, and the damping friction plate is abutted against the fixed ring through the disc spring.
Further, a second clamping ring for preventing dislocation of the rotating cylinder and the outer cylinder is arranged at the contact position of the rotating cylinder and the outer cylinder, and a clamping groove is arranged at the position of the outer cylinder corresponding to the second clamping ring.
Further, the outer end surfaces of the outer cylinder body and the rotating cylinder are provided with sealing covers.
The beneficial effects of the utility model are as follows: the utility model realizes the torsion stabilizing effect of the torsion spring on the balance arm by arranging the inner cylinder body, the outer cylinder body, the connecting pipe, the rotating cylinder and the torsion spring, wherein the outer cylinder body is fixedly connected with the inner cylinder body through the fixed ring, the torsion spring is sleeved on the connecting pipe, two ends of the torsion spring are respectively connected with the fixed ring and the baffle plate on the rotating cylinder, and the torsion spring is matched with a group of damping adjusting blocks at one end of the connecting pipe, so that the phenomenon of self-drifting of the balance arm can be prevented without arranging a plurality of groups of damping screws. Simple structure, the operating personnel equipment of being convenient for and maintenance.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of a partially enlarged construction of the present utility model;
FIG. 3 is a schematic cross-sectional view of the present utility model;
in the figure: 1. the device comprises a fixing ring, an outer cylinder, an inner cylinder, a rotating cylinder, a clamping block, a limiting ring, a connecting pipe, a fixing nut, a torsion spring, a damping adjusting block, a first clamping ring, an extension pipe, an adjusting screw, a limiting block, a damping friction plate, a disc spring, a second clamping ring, a clamping groove and a sealing cover.
Description of the embodiments
The principles and features of the present utility model are described below with reference to the drawings, the illustrated embodiments are provided for illustration only and are not intended to limit the scope of the present utility model.
As shown in fig. 1 to 3, the balance arm rotating device of the operation shadowless lamp of the embodiment comprises a rotating unit arranged in a rotating arm, a fixing unit arranged in a fixing arm, and a connecting unit, wherein the fixing unit is rotationally connected with the rotating unit through the connecting unit;
the fixing unit comprises a fixing ring 1, an outer cylinder body 2 and an inner cylinder body 3 which are concentric, and the outer cylinder body 2 is fixedly connected with the inner cylinder body 3 through the fixing ring 1;
the rotating unit comprises a rotating cylinder 4, and a clamping block 5 is arranged on the inner wall of the rotating cylinder 4;
the connecting unit comprises a limiting ring 6, a connecting pipe 7, a fixing nut 8, a torsion spring 9 and a damping adjusting block 10, wherein the limiting ring 6 is fixedly arranged on one side of the connecting pipe, the limiting ring 6 is in contact with a clamping block 5, a first clamping ring 11 is fixedly arranged on one side of the connecting pipe 7 close to the limiting ring and extends outwards to form an extension pipe 12, an external thread is formed on the outer wall of the extension pipe 12, the extension pipe 12 is in threaded connection with the fixing nut 8, the other end of the connecting pipe 7 penetrates through the inner cylinder 3 and extends outwards to form a preset length, the damping adjusting block 10 is arranged in the outer cylinder 2 and is connected with the end face of the connecting pipe 7 through an adjusting screw 13, the torsion spring 9 is wound on the outer sides of the connecting pipe 7 and the inner cylinder 3, and two ends of the torsion spring 9 are respectively connected to the fixing ring 1 and the limiting ring 6.
In this embodiment, the length of inner tube 3 is less than the length of outer tube 2 and the outer terminal surface of inner tube 3 flushes with the outer terminal surface of first snap ring 11, the fixed stopper 14 that is equipped with of first snap ring 11 lateral wall and restricts torsion spring 9 and remove, guarantees that torsion spring 9 takes connecting rod 7 axle to produce deformation as the center, improves the stability of device.
In this embodiment, the damping friction plate 15 and the belleville spring 16 are further included, the damping friction plate 15 is disposed between the damping adjustment block 10 and the fixed ring 1, and the belleville spring 16 makes the damping friction plate 15 and the fixed ring 1 collide, so that stability of the device is improved.
In this embodiment, the contact position between the rotating cylinder 4 and the outer cylinder 2 is provided with a second clamping ring 17 for preventing the rotating cylinder 4 and the outer cylinder 2 from being misplaced, and the position of the outer cylinder 2 corresponding to the position of the second clamping ring 17 is provided with a clamping groove 18 for preventing the rotating cylinder 4 and the outer cylinder 2 from being misplaced during relative rotation, thereby improving the stability of the device.
In this embodiment, the outer end surfaces of the outer cylinder 2 and the rotating cylinder 4 are provided with sealing covers 19, so that dust is prevented from entering the rotating cylinder 4 and the outer cylinder 2, and the service life of the device is prevented from being influenced.
When the damping device works, the rotating arm is rotated, the rotating cylinder 4 rotates, the torsion spring 9 deforms to generate torsion, the position of the rotating arm is adjusted within the bearing range of the torsion spring 9, the rotating cylinder 4 is fixed, the pressure of the belleville springs 16 to the damping friction plate 15 is adjusted through the tightness degree of the adjusting screw 13 and the fixing nut 8 on the damping adjusting block 10, the torsion force of the torsion spring 9 and the friction force between the damping friction plate 15 reach balance, and the self-drifting phenomenon of the balance arm is prevented.
The above example is only one embodiment of the present utility model, which is described in detail and is not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (6)
1. The balance arm rotating device of the operation shadowless lamp comprises a rotating unit arranged in a rotating arm and a fixing unit arranged in a fixing arm, and is characterized by further comprising a connecting unit, wherein the fixing unit is rotationally connected with the rotating unit through the connecting unit;
the fixing unit comprises a fixing ring (1), an outer cylinder body (2) and an inner cylinder body (3) which are concentric, wherein the outer cylinder body (2) is fixedly connected with the inner cylinder body (3) through the fixing ring (1);
the rotating unit comprises a rotating cylinder (4), and a clamping block (5) is arranged on the inner wall of the rotating cylinder (4);
the connecting unit comprises a limiting ring (6), a connecting pipe (7), a fixing nut (8), a torsion spring (9) and a damping adjusting block (10), wherein the limiting ring (6) is fixedly arranged on one side of the connecting pipe, the limiting ring (6) is mutually abutted against a clamping block (5), a first clamping ring (11) is fixedly arranged on one side of the connecting pipe (7) close to the limiting ring and outwards extends to form an extension pipe (12), an external thread is formed on the outer wall of the extension pipe (12), the extension pipe (12) is connected with the fixing nut (8) in a threaded manner, the other end of the connecting pipe (7) penetrates through an inner cylinder body (3) and outwards extends to form a preset length, the damping adjusting block (10) is arranged in the outer cylinder body (2) and is connected with the end face of the connecting pipe (7) through an adjusting screw (13), the torsion spring (9) is wound on the outer side of the connecting pipe (7) and the inner cylinder body (3), and two ends of the torsion spring (9) are respectively connected to the fixing ring (1) and the limiting ring (6).
2. The balance arm rotating device of the operation shadowless lamp according to claim 1, wherein the length of the inner cylinder (3) is smaller than that of the outer cylinder (2) and the outer diameter of the inner cylinder (3) is equal to that of the first clamping ring (11).
3. The balance arm rotating device of the operation shadowless lamp according to claim 1, wherein a limiting block (14) for limiting the movement of the torsion spring (9) is fixedly arranged on the side wall of the first clamping ring (11).
4. The balance arm rotating device of the operation shadowless lamp according to claim 1, further comprising a damping friction plate (15) and a disc spring (16), wherein the damping friction plate (15) is arranged between the damping adjusting block (10) and the fixed ring (1), and the damping friction plate (15) is abutted against the fixed ring (1) through the disc spring (16).
5. The balance arm rotating device of the operation shadowless lamp according to claim 1, wherein a second clamping ring (17) for preventing dislocation of the rotating cylinder (4) and the outer cylinder body (2) is arranged at a position, corresponding to the second clamping ring (17), of the outer cylinder body (2), and a clamping groove (18) is arranged.
6. The balance arm rotating device of the operation shadowless lamp according to claim 1, wherein the outer end surfaces of the outer cylinder (2) and the rotating cylinder (4) are provided with sealing covers (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322150244.5U CN220436407U (en) | 2023-08-10 | 2023-08-10 | Balance arm rotating device of operation shadowless lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322150244.5U CN220436407U (en) | 2023-08-10 | 2023-08-10 | Balance arm rotating device of operation shadowless lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220436407U true CN220436407U (en) | 2024-02-02 |
Family
ID=89703251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322150244.5U Active CN220436407U (en) | 2023-08-10 | 2023-08-10 | Balance arm rotating device of operation shadowless lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220436407U (en) |
-
2023
- 2023-08-10 CN CN202322150244.5U patent/CN220436407U/en active Active
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