CN212204443U - Lifting mechanism for lamp car - Google Patents
Lifting mechanism for lamp car Download PDFInfo
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- CN212204443U CN212204443U CN202020676201.4U CN202020676201U CN212204443U CN 212204443 U CN212204443 U CN 212204443U CN 202020676201 U CN202020676201 U CN 202020676201U CN 212204443 U CN212204443 U CN 212204443U
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- pulley
- lifting rod
- wire rope
- rotating shaft
- ratchet
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- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 abstract description 2
- 241001465382 Physalis alkekengi Species 0.000 abstract 1
- 230000009471 action Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of the lifting support, concretely relates to a elevating system for lamp car, including outer lifting bar, in the outer lifting bar in proper order nestification have well lifting bar and interior lifting bar, the light is installed at the top of interior lifting bar, the right-hand member outside of outer lifting bar is provided with the ratchet seat, the pivot has been worn in the rotation on the ratchet seat, the outside fixedly connected with crank of pivot cup joints through frictional force in the pivot and is fixed with the ratchet, the outside correspondence of ratchet is provided with to the pawl, the top of ratchet seat is provided with first pulley, the inboard bottom of right-hand member of well lifting bar is provided with the second pulley, and the top is provided with the third pulley, still is fixed with wire rope in the pivot, and wire rope is fixed in the inboard bottom of left end of interior lifting bar with the one end that the pivot is opposite. The utility model provides a lamps and lanterns lifter structure is comparatively simple, has set up ratchet and complex locking mechanism, location and lift that can be steady have apparent practical meaning.
Description
Technical Field
The utility model relates to a lifting support technical field particularly, relates to a elevating system for lamp car.
Background
The lamp car is a section lighting apparatus that is used for building site illumination construction night, for enlarging the illumination zone, need rise to the take the altitude with the lifter of lamp car, in order to facilitate the transportation and place simultaneously, the lamp car height can not be too high, consequently needs the lamp car to have frame raising and lowering functions and compromise the security. However, the lifting mechanism meeting the performance requirements of stable and safe positioning, convenient adjustment, simple structure and light weight is lacking in the market at present, and the corresponding equipment has larger improvement space.
SUMMERY OF THE UTILITY MODEL
The lifting mechanism for the lamp car is provided for solving the problems that the existing lifting mechanism for the lamp car, which is lack of the existing market, can be shortened for storage, is stable in positioning, convenient to adjust, simple in structure and lighter in weight.
A lifting mechanism for a lamp car comprises a hollow outer lifting rod, a middle lifting rod and an inner lifting rod are sequentially nested in the outer lifting rod, the top of the inner lifting rod is provided with a lighting lamp, the outer side of the right end of the outer lifting rod is provided with a ratchet seat, a rotating shaft is rotatably connected on the ratchet wheel seat in a penetrating way, a hand crank is fixedly connected on the outer side of the rotating shaft, a ratchet wheel is fixedly sleeved on the rotating shaft through friction force, a limited direction pawl is correspondingly arranged on the outer side of the ratchet wheel, a first pulley is arranged above the ratchet wheel seat, the bottom of the inner side of the right end of the middle lifting rod is provided with a second pulley, the top is provided with a third pulley, through grooves are arranged between the second pulley and the third pulley and at the right end of the inner lifting rod, a steel wire rope is fixed on the rotating shaft, the steel wire rope is sequentially connected with the first pulley, the second pulley and the third pulley in series, and one end, opposite to the rotating shaft, of the steel wire rope is fixed to the bottom of the inner side of the left end of the inner lifting rod.
Further, both ends about the ratchet seat are run through to the pivot, the left end fixed connection crank of pivot, push-and-pull dish, friction disc, ratchet and belleville spring have been cup jointed from the right side to a left side in proper order in the inboard pivot of ratchet seat, the pivot outside of belleville spring top is provided with the cooperation screw thread, the wire rope dish has been cup jointed to the screw thread on the cooperation screw thread, wire rope's one end is fixed on the wire rope dish, and lock nut has been cup jointed to the right-hand member screw thread of pivot.
Further, the disc spring includes a first disc spring and a second disc spring stacked in combination.
Furthermore, the bottom of the inner side of the left end of the inner lifting rod is provided with a guide pulley corresponding to the steel wire rope, and the steel wire rope is tightly attached to the guide pulley.
Furthermore, a pawl seat is arranged on the inner side of the ratchet seat, and the direction limiting pawls are connected in series on the pawl seat.
Further, a pulley shield is arranged on the outer side of the first pulley.
Furthermore, a handle rod is rotatably connected in series at one end of the hand crank opposite to the rotating shaft.
The utility model has the advantages that:
1. simple structure and convenient operation.
2. Light weight, small occupied size during storage and convenient transportation and movement.
3. The locking mechanism is arranged, so that the lifting can be stably positioned after being lifted in place, and the safety is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of a lift mechanism for a light truck;
fig. 2 is a detailed view of the ratchet structure.
The attached drawings are as follows:
1-an outer lifting rod, 2-a middle lifting rod, 3-an inner lifting rod, 4-a lighting lamp, 5-a ratchet seat, 51-a pawl seat, 6-a rotating shaft, 61-a matching thread, 7-a hand crank, 71-a handle rod, 8-a ratchet, 9-a direction limiting pawl, 10-a first pulley, 11-a second pulley, 12-a third pulley, 13-a through groove, 14-a steel wire rope, 15-a push-pull disc, 16-a friction disc, 171-a first disc spring, 172-a second disc spring, 18-a steel wire rope disc, 19-a locking nut, 20-a guide pulley and 21-a pulley shield.
Detailed Description
The lifting mechanism for the lamp car is provided for solving the problems that the existing lifting mechanism for the lamp car, which is lack of the existing market, can be shortened for storage, is stable in positioning, convenient to adjust, simple in structure and lighter in weight.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment provides a lifting mechanism for a lamp car, which includes a hollow outer lifting rod 1, a middle lifting rod 2 and an inner lifting rod 3 are sequentially nested in the outer lifting rod 1, a lighting lamp 4 is installed at the top of the inner lifting rod 3, a ratchet seat 5 is arranged on the outer side of the right end of the outer lifting rod 1, a rotating shaft 6 is rotatably connected to the ratchet seat 5 in a penetrating manner, a hand crank 7 is fixedly connected to the outer side of the rotating shaft 6, a ratchet 8 is fixedly connected to the rotating shaft 6 in a sleeved manner through friction force, a limiting pawl 9 is correspondingly arranged on the outer side of the ratchet 8, a first pulley 10 is arranged above the ratchet seat 5, a second pulley 11 is arranged at the bottom of the inner side of the right end of the middle lifting rod 2, a third pulley 12 is arranged at the top of the inner lifting rod, a through groove 13 is arranged between the second pulley 11 and the third pulley 12 and at the right end of the inner lifting rod, the steel wire rope 14 is sequentially connected with the first pulley 10, the second pulley 11 and the third pulley 12 in series, and one end, opposite to the rotating shaft 6, of the steel wire rope 14 is fixed at the bottom of the inner side of the left end of the inner lifting rod 3.
Both ends about pivot 6 runs through ratchet seat 5, the left end fixed connection crank 7 of pivot 6, push-and-pull dish 15, friction disc 16, ratchet 8 and belleville spring have been cup jointed from the right side to a left side in proper order in 5 inboard pivots 6 of ratchet seat, 6 outsides in pivot above the belleville spring are provided with cooperation screw thread 61, wire rope dish 18 has been cup jointed to the screw thread on the cooperation screw thread 61, wire rope 14's one end is fixed on wire rope dish 18, and lock nut 19 has been cup jointed to the right-hand member screw thread of pivot 6.
During actual use, if the lifting rod needs to be lifted, the hand crank 7 is rotated towards the opposite direction of the teeth of the ratchet wheel 8, under the action of the matching threads 61, the rotating shaft 6 is pushed clockwise along the axial direction, the push-pull disc 15 is pushed clockwise, the friction plate 16 is further pushed, the ratchet wheel 8, the disc-shaped gasket, the steel wire rope disc 18 and the locking nut 19 are sequentially pushed to rotate clockwise, the steel wire rope disc 18 rotates to tighten and contract the steel wire rope 14, and the steel wire rope 14 transmits lifting force to the tail end of the steel wire rope 14 along the first pulley 10, the second pulley 11 and the third pulley 12. At the moment, the middle lifting rod 2 is not moved, and the inner lifting rod 3 is lifted along with the contraction of the steel wire rope 14; when the inner lifting rod 3 rises to the end, the steel wire rope 14 continues to be contracted, the lower part of the inner lifting rod 3 pulls the upper part of the middle lifting rod 2 to rise together, and the second pulley 11 and the third pulley 12 rise together with the middle lifting rod 2; when the middle lifting rod 2 is lifted to the end, the steel wire rope 14 is contracted to the shortest, at the moment, the inner lifting rod 3 and the middle lifting rod 2 both reach the highest point, and the illuminating lamp 4 is positioned at the highest position. In the lifting process, when the lifting rod reaches any required height, the hand crank 7 stops rotating, the steel wire rope 14 is tensioned, the rotating shaft 2 and the steel wire rope disc 18 are in a close fit state, the disc-shaped gasket and the friction plate 16 tightly press the ratchet 8, the direction limiting pawl 9 can stop the reverse rotation of the ratchet 8, and the lifting rod is firmly positioned at a set position.
When the lifting rod needs to be lowered, the hand crank 7 is rotated along the direction of the teeth of the ratchet wheel 8, the rotating shaft 2 retreats along the matching thread 61, the steel wire rope disc 18 rotates along with the rotating shaft under the action of the pulling force of the steel wire rope 14, the winding and the steel wire rope 14 on the steel wire rope disc 18 are loosened, at the moment, the middle lifting rod 2 descends in advance, and the second pulley 11 and the third pulley 12 roll together to descend; when the middle lifting rod 2 descends to the lowest position, the action of the second pulley 11 and the third pulley 12 is changed from the movable pulley to the fixed pulley, and at the moment, the inner lifting rod 3 begins to descend until the lowest position is reached. Due to the blocking of the locking nut 19 and the reverse stopping effect of the direction limiting pawl 9, the rotating shaft 2, the push-pull disc 15, the disc-shaped gasket, the steel wire rope disc 18 and the locking nut 19 rotate anticlockwise together, the ratchet wheel 8 cannot rotate, under the action of axial pretightening force, the friction plate 16, the ratchet wheel 8 and the push-pull disc 15 generate friction to block the rotation of the ratchet wheel 8 and the push-pull disc 15, the descending speed is effectively controlled, and the lifting rod can be controlled to ascend or descend only under the condition that the hand crank 7 is manually rotated.
The disc springs include a first disc spring 171 and a second disc spring 172 that are aligned. Under the condition of involution combination, the deformation of the disc spring set is the sum of the deformation of single springs in the spring set, and the load is the same as that of the single springs, so that a certain axial pretightening force can be provided, and all parts are stably installed.
The bottom of the inner side of the left end of the inner lifting rod 3 is provided with a guide pulley 20 corresponding to the steel wire rope 14, and the steel wire rope 14 is tightly attached to the guide pulley 20. The guide pulley 20 can position the steel wire rope 14, so that all the pulleys are in the same vertical plane, and smooth winding and unwinding of the steel wire rope 14 are ensured.
A pawl seat 51 is arranged on the inner side of the ratchet seat 5, and the direction limiting pawl 9 is connected in series with the pawl seat 51. The direction limiting pawl 9 can rotate on the pawl seat 51 for a certain angle, so that the steel wire rope 14 is ensured to be tightened, and the ratchet wheel 8 can smoothly rotate when the lifting rod extends.
A pulley guard 21 is disposed outside the first pulley 10. The pulley guard 21 may shield the first pulley 10 from the outside, protecting the first pulley 10.
And a handle rod 71 is rotatably connected in series at one end of the hand crank 7 opposite to the rotating shaft 6. The handle bar 71 facilitates the user to hold and rotate the ratchet 8, improving comfort.
The foregoing is a more detailed description of the present invention, and it is not intended that the present invention be limited to the specific details, since modifications and variations will be apparent to those skilled in the art.
Claims (7)
1. A lifting mechanism for a lamp car is characterized by comprising a hollow outer lifting rod, wherein a middle lifting rod and an inner lifting rod are sequentially nested in the outer lifting rod, a lighting lamp is installed at the top of the inner lifting rod, a ratchet seat is arranged on the outer side of the right end of the outer lifting rod, a rotating shaft is rotatably connected on the ratchet seat in a penetrating manner, a hand crank is fixedly connected to the outer side of the rotating shaft, a ratchet wheel is fixedly sleeved on the rotating shaft through friction force, a limiting pawl is correspondingly arranged on the outer side of the ratchet wheel, a first pulley is arranged above the ratchet seat, a second pulley is arranged at the bottom of the inner side of the right end of the middle lifting rod, a third pulley is arranged at the top of the middle lifting rod, through grooves are formed in the right ends of the inner lifting rod and between the second pulley and the third pulley, a steel wire rope is further fixed on the rotating shaft, and the steel wire rope is sequentially connected, the end of the steel wire rope opposite to the rotating shaft is fixed at the bottom of the inner side of the left end of the inner lifting rod.
2. The lifting mechanism for the lamp car according to claim 1, wherein the rotating shaft penetrates through the left end and the right end of the ratchet seat, the left end of the rotating shaft is fixedly connected with the crank, a push-pull disc, a friction plate, a ratchet wheel and a disc spring are sequentially sleeved on the rotating shaft on the inner side of the ratchet seat from right to left, a matching thread is arranged on the outer side of the rotating shaft above the disc spring, a steel wire rope disc is sleeved on the matching thread in a threaded manner, one end of a steel wire rope is fixed on the steel wire rope disc, and a locking nut is sleeved on the right end thread of the rotating shaft.
3. The lift mechanism for a lighted vehicle of claim 2, wherein the disc spring comprises a first disc spring and a second disc spring stacked in combination.
4. The lifting mechanism for the lamp car as claimed in claim 1, wherein the bottom of the inner side of the left end of the inner lifting rod is provided with a guide pulley corresponding to the wire rope, and the wire rope is tightly attached to the guide pulley.
5. The lifting mechanism for the lamp car as claimed in claim 1, wherein a pawl seat is provided inside the ratchet seat, and the direction limiting pawl is connected in series to the pawl seat.
6. The lift mechanism for a light truck of claim 1, wherein a pulley guard is provided outside the first pulley.
7. The lifting mechanism for the lamp car as claimed in claim 1, wherein a handle bar is rotatably connected in series to an end of the hand crank opposite to the rotation shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020676201.4U CN212204443U (en) | 2020-04-28 | 2020-04-28 | Lifting mechanism for lamp car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020676201.4U CN212204443U (en) | 2020-04-28 | 2020-04-28 | Lifting mechanism for lamp car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212204443U true CN212204443U (en) | 2020-12-22 |
Family
ID=73827995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020676201.4U Active CN212204443U (en) | 2020-04-28 | 2020-04-28 | Lifting mechanism for lamp car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212204443U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114132861A (en) * | 2021-12-28 | 2022-03-04 | 保定向阳航空精密机械有限公司 | Bidirectional anti-falling lifting mechanism |
| CN114458913A (en) * | 2022-01-27 | 2022-05-10 | 淄博朗达复合材料有限公司 | Pulley principle lifting rod |
-
2020
- 2020-04-28 CN CN202020676201.4U patent/CN212204443U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114132861A (en) * | 2021-12-28 | 2022-03-04 | 保定向阳航空精密机械有限公司 | Bidirectional anti-falling lifting mechanism |
| CN114132861B (en) * | 2021-12-28 | 2023-09-15 | 保定向阳航空精密机械有限公司 | Bidirectional anti-falling lifting mechanism |
| CN114458913A (en) * | 2022-01-27 | 2022-05-10 | 淄博朗达复合材料有限公司 | Pulley principle lifting rod |
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