CN2433510Y - Large load self-balance swivel arm for shadow-free operating lamp - Google Patents
Large load self-balance swivel arm for shadow-free operating lamp Download PDFInfo
- Publication number
- CN2433510Y CN2433510Y CN 00218725 CN00218725U CN2433510Y CN 2433510 Y CN2433510 Y CN 2433510Y CN 00218725 CN00218725 CN 00218725 CN 00218725 U CN00218725 U CN 00218725U CN 2433510 Y CN2433510 Y CN 2433510Y
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- China
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- rod
- spring
- big
- wheel
- trailing wheel
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Abstract
The utility model provides a large-load self-balancing suspension arm for a shadowless operatiom lamp, which is characterized in that both ends of a balancing arm cover are respectively connected with an auxiliary and a main rotating shafts of which both sides are respectively connected with one end of a double-front connecting rod and one end of a double-front connecting rod; the other end double-front connecting rod and the other end of the double-back connecting rod are respectively connected with the circular shafts of a front and a back wheels; the front wheel is arranged in a front support frame of a bracing rod; the back wheel is arranged in a guideway block; a draw rod is arranged between the circular shafts of the front and the back wheels; the front end of the draw rod is provided with a balancer of a pressing plate, a thrust bearing and a back and a front regulating nuts in turn; both sides of the draw rod are respectively provided with symmetrical identical springs; the bracing rod is arranged in the spring which is connected with the front support frame of the bracing rod; the back end of the spring is provided with a screw bolt of the bracing rod and a seat of the bracing rod.
Description
The utility model relates to a kind of self-balancing cantilever beam, relates more specifically to be used for the big load self-balancing cantilever of operation shadowless lamp.
Traditional shadowless lamp cantilever is when the upper and lower pulling of lamp body, work in the swing mode, its shortcoming is: after adjusting height at every turn, must adjust lamp face height, it is very inconvenient to use, at present external product generation and move up and down from translation (lamp face angle remains unchanged) mode, but can't promote because of complex structure, process materials require harshness, cost is too high, the big load self-balancing cantilever of especially large-scale shadowless lamp, domestic more difficult manufacturing is finished.
The purpose of this utility model provides the big load self-balancing cantilever that is used for operation shadowless lamp, with before two, the unique texture design of two back links, dual spring and front and rear wheel, be fit to domestic manufacturing processing conditions and material source fully, overcome above-mentioned shortcoming to reach external identical translation mode and performance, finished the update of domestic corresponding product.
The purpose of this utility model is achieved in that the big counterweight balance cantilever that is used for operation shadowless lamp, comprising: big preceding joint, big posterior joint; It is characterized in that: the two ends of counter-jib cover respectively with pair, main shaft connects, secondary, the both sides of main shaft respectively with two before, one end of two backs side rod connects, its other end is respectively with preceding, the circular shaft of trailing wheel connects, front-wheel places in the overarm support, trailing wheel places in the way block, before, be equipped with pull bar between the circular shaft of trailing wheel, the front end of pull bar is equipped with balancer successively, thrust bearing, after, preceding adjusting nut, the both sides of pull bar respectively are provided with the identical spring of symmetry, put a pressing plate above the spring, the built-in strut of spring, and be connected with the strut fore-stock, its rear end is equipped with bolt of stay and strut socket.
The utility model is the present both at home and abroad major surgery shadowless lamp counter-jib of latest generation in the shadowless lamp industry, belongs to the self-balancing cantilever beam of big load, has characteristics such as simple in structure, dependable performance, low cost, high efficiency, high added value, is worthy of popularization.
Below in conjunction with drawings and Examples the utility model is further described:
Accompanying drawing is a structural representation of the present utility model.
Among the figure: 2 big posterior joint 3 counter-jib covers 4 auxiliary spindles of 1 big preceding joint
7 pairs of back links of 6 pairs of front rods of 5 main shafts, 8 front-wheels, 9 trailing wheels
10 pull bars, 11 springs, 12 struts, 13 pressing plates, 14 strut sockets
15 bolts of stay, 16 balancers, 17 thrust bearings, 18 back adjusting nuts
Adjusting nut 20 strut fore-stocks 21 way blocks before 19
As shown in the figure: the utility model comprises: big preceding joint 1, big posterior joint 2, the two ends of counter-jib cover 3 respectively with pair, main shaft 4,5 connect, secondary, main shaft 4,5 both sides respectively with two before, two back links 6, an end of 7 connects, its other end is respectively with preceding, trailing wheel 8,9 circular shaft connects, front-wheel 8 places in the strut fore-stock 20, trailing wheel 9 places in the way block 21, before, trailing wheel 8, be equipped with pull bar 10 between 9 the circular shaft, the front end of pull bar 10 is equipped with pressing plate 13 successively, balancer 16, thrust bearing 17, adjusting nut 18 before the back, 19, the both sides of pull bar respectively are provided with the identical spring 11 of symmetry, spring 11 built-in struts 12, and be connected with strut fore-stock 20, its rear end is equipped with bolt of stay 15 and strut socket 14.
The length ratio of of the present utility model pair of front rod 6 and two back links 7 is 7: 12, and front-wheel 8 is 3: 5 with the diameter ratio of trailing wheel 9.
Before of the present utility model, two springs 11 of back two parts and middle device, only two bolts of stay 15 by two disjunctor bolts on the strut fore-stock 20 and back link together, before two, two back links 6,7, dual spring 11 is parallel, before, trailing wheel 8,9 corresponding special construction devices, have very big load-carrying ability and high security, auxiliary spindle 4 places adopt the simple chain mode to connect, the unsteady connection that 3 simple chains of this employing are formed, make middle device well to adapt to, owing to hang down the coarse balance cover inwall that machining accuracy is brought, thereby greatly reduced the difficulty of processing and the assembling and setting difficulty of part.
Simple operation principle of the present utility model is: with the counter-jib cover as static object of reference, when then doing oscillating motion in the joint on the one hand, this moves through two back links 7, pull bar 10, adjusting nut 18,19, two front rod 6 big preceding joint 1 is passed in motion, make it to produce synchronous (angle is synchronous) in the oscillating motion of big posterior joint 2, the pull bar 10 that moves through of big on the other hand posterior joint 2 is passed to spring 11 with rectilinear motion by pressing plate 13.Make it compression, thereby produce the trimming moment of cantilever, if with big posterior joint work is static object of reference, when then having shown as the counter-jib cover and having swung up and down, the shaft centre line in big preceding joint 1 remains and is essentially vertical line, thereby after having avoided each adjustment height, must adjust the trouble of lamp face angle, and good pulling sense arranged, the very big journey (about 1.2m) of drawing.
Claims (2)
1, is used for the big load self-balancing cantilever of operation shadowless lamp, comprises: big preceding joint, big posterior joint; It is characterized in that: the two ends of counter-jib cover respectively with pair, main shaft connects, secondary, the both sides of main shaft respectively with two before, one end of two backs side rod connects, its other end is respectively with preceding, the circular shaft of trailing wheel connects, front-wheel places in the overarm support, trailing wheel places in the way block, before, be equipped with pull bar between the circular shaft of trailing wheel, the front end of pull bar is equipped with balancer successively, thrust bearing, after, preceding adjusting nut, the both sides of pull bar respectively are provided with the identical spring of symmetry, put a pressing plate above the spring, the built-in strut of spring, and be connected with the strut fore-stock, its rear end is equipped with bolt of stay and strut socket.
2, the big load self-balancing arm that is used for operation shadowless lamp according to claim 1 is characterized in that: two front rods are 7: 12 with the length ratio of two back links, and the diameter ratio of front-wheel and trailing wheel is 3: 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218725 CN2433510Y (en) | 2000-08-08 | 2000-08-08 | Large load self-balance swivel arm for shadow-free operating lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00218725 CN2433510Y (en) | 2000-08-08 | 2000-08-08 | Large load self-balance swivel arm for shadow-free operating lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2433510Y true CN2433510Y (en) | 2001-06-06 |
Family
ID=33584040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00218725 Expired - Fee Related CN2433510Y (en) | 2000-08-08 | 2000-08-08 | Large load self-balance swivel arm for shadow-free operating lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2433510Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014090029A1 (en) * | 2012-12-14 | 2014-06-19 | Hsu Chia-Yi | Counterweight arm mechanism |
| CN104149100A (en) * | 2013-05-14 | 2014-11-19 | 徐佳义 | Supporting arm joint device |
-
2000
- 2000-08-08 CN CN 00218725 patent/CN2433510Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014090029A1 (en) * | 2012-12-14 | 2014-06-19 | Hsu Chia-Yi | Counterweight arm mechanism |
| CN104149100A (en) * | 2013-05-14 | 2014-11-19 | 徐佳义 | Supporting arm joint device |
| CN104149100B (en) * | 2013-05-14 | 2015-11-04 | 徐佳义 | A kind of support arm joint arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhuo Shanchi Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |