CN203807097U - Protection device of double-column lifting machine - Google Patents
Protection device of double-column lifting machine Download PDFInfo
- Publication number
- CN203807097U CN203807097U CN201420106301.8U CN201420106301U CN203807097U CN 203807097 U CN203807097 U CN 203807097U CN 201420106301 U CN201420106301 U CN 201420106301U CN 203807097 U CN203807097 U CN 203807097U
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- CN
- China
- Prior art keywords
- support roller
- lifting machine
- lever piece
- rolling wheel
- lever part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model provides a protection device of a double-column lifting machine. The protection device comprises a limiting installation assembly which is provided with a first supporting rolling wheel, a second supporting rolling wheel and a third supporting rolling wheel; the third supporting rolling wheel is connected with one end of a lever part; the other end of the lever part is opposite to a limiting switch in position; the middle of the lever part is supported at a fulcrum; the end of the lever part, which is connected with the third supporting rolling wheel, is also connected with a pressing spring; the limiting switch is connected with a control circuit of the double-column lifting machine. When a steel wire rope is loosened and fractured, the force applied to the third supporting rolling wheel loses balance, the lever part swings under the action of the pressure spring, and accordingly the lever part end which is far away from the pressure spring can be directly applied to the limiting switch, the control circuit is opened due to action of the limiting switch to avoid the lifting machine from continuing moving to threaten the personal safety of vehicle maintenance personnel, and accordingly the device can be safe and reliable.
Description
Technical field
The utility model relates to a kind of auto hoist, particularly a kind of fender guard being used on queen post lifting machine.
Background technology
Auto hoist refers to the vapour guarantor equipment of automobile maintenance industry for vehicle hoisting.Lifting machine is being brought into play vital effect in vehicle maintenance and repair maintenance, and no matter car load overhaul, or routine maintenance, all be unable to do without it, and its product property, quality can directly have influence on maintainer's personal safety.In the different maintenance enterprise of scale, no matter be the comprehensive repair plant of maintenance various, or the single shop, curbside of operation scope, lifting machine is nearly all equipped with.Auto hoist can be divided into the several types such as single-column, twin columns, four posts, scissors according to function and shape.
The basic functional principle of double-column lifter is as follows: drive cylinder piston rod by hydraulic ram, liquid presses piston pole drives slide unit rise and fall, and slide unit drives trailing arm clump and plays lifting effect.For the elevate a turnable ladder overbalance that prevents that both sides speed of lifting is different and cause, conventionally can on the basis of hydraulic pressure elevate a turnable ladder, increase the synchronous device of steel rope, can make up the defect that hydraulic actuating cylinder brings with such synchronous device.But in actual use, getting loose, rupturing appears in steel rope sometimes, so just likely can have influence on maintainer's personal safety.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of safety device that can avoid wire cable rupture to get loose and protect.
For achieving the above object and other relevant objects, the utility model provides a kind of queen post lifting machine fender guard, it comprises a limit mounting assembly, described limit mounting assembly is provided with the first support roller, the second support roller and the 3rd support roller, described the 3rd support roller is connected with one end of lever piece, the other end of described lever piece is relative with a limit-switch positions, the middle part of described lever piece is supported on a fulcrum, one end of the lever piece being connected with described the 3rd support roller is also connected with a pressure spring, described limit switch is connected with the control circuit of queen post lifting machine.
Preferably, described the 3rd support roller is positioned at a side of described the first support roller, the second support roller line of centres, and described the 3rd support roller is between described the first support roller, the second support roller.
Preferably, the surrounding of described limit switch, lever piece, pressure spring is provided with stay bearing plate.
Preferably, described support roller is arranged on anchor shaft, described support roller be provided with outer ring needle bearing interior week.
Preferably, the middle part of described lever piece is provided with a curve, and described fulcrum is a pivot shaft, and described pivot shaft is supported on described curve.
Preferably, the middle part of described lever piece and described point articulated.
As mentioned above, queen post lifting machine fender guard of the present utility model has following beneficial effect: this fender guard is provided with three support rollers, lifting machine steel rope is successively by three support rollers and be tauted under the effect of pressure spring, when getting loose appears in steel rope, when fracture, stressed on the 3rd support roller will lack of equilibrium, lever piece will swing under the effect of pressure spring, lever piece will act directly on limit switch away from one end of pressure spring like this, limit switch action makes control circuit power-off, avoiding elevator to continue action threatens to vehicle maintenance and repair personnel personal safety, therefore this device can effectively ensure vehicle maintenance and repair personnel's personal safety, make equipment become more safe and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation that the utility model embodiment uses state.
Element numbers explanation
| 1 | Limit mounting assembly |
| 2 | The first support roller |
| 3 | Fix shaft |
| 4 | Stay bearing plate |
| 5 | The 3rd support roller |
| 6 | Pressure spring |
| 7 | Limit switch |
| 8 | Lever piece |
| 9 | Pivot shaft |
| 10 | The second support roller |
| 11 | Bottom cut board |
| 12 | Steel rope |
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification sheets.
Refer to Fig. 1,2.Notice, appended graphic the illustrated structure of this specification sheets, ratio, size etc., all contents in order to coordinate specification sheets to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, in this specification sheets, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the utility model without essence.
The utility model provides a kind of queen post lifting machine fender guard, and this fender guard can make lifting machine shut down automatically occurring getting loose, rupture at the steel rope of lifting machine, thereby effectively protects vehicle maintenance and repair personnel's health safety.
As shown in Figure 1; this queen post lifting machine fender guard comprises a limit mounting assembly 1; limit mounting assembly 1 is provided with the first support roller 2, the second support roller 10 and the 3rd support roller 5, the first support rollers 2, the second support roller 10 is identical with the structure of the 3rd support roller 5.Taking the first support roller 2 as example, it is arranged on anchor shaft 3, and the first support roller 2 can rotate around anchor shaft 3, in order to make the very smooth rotation of the first support roller 2, is also provided with outer ring needle bearing in the interior week of support roller.
The 3rd support roller 5 is connected with one end of lever piece 8, and the other end of lever piece 8 is relative with limit switch 7 positions, and limit switch is connected with the control circuit of queen post lifting machine.The middle part of lever piece 8 is supported on a fulcrum.One end of the lever piece 8 being connected with the 3rd support roller 5 is also connected with a pressure spring 6, and pressure spring 6 acts on lever piece 8 and provides pressure to it.
As an embodiment of this patent, the middle part of lever piece 8 is provided with a curve, and fulcrum is a pivot shaft 9, and this pivot shaft 9 is supported on the curve of lever piece 8.According to lever principle, pressure spring 6 provides pressure that one end of lever piece 8 is moved, and the other end of lever piece 8 will swing and act on limit switch 7, and limit switch 7 is moved.As the another kind of optimal way of this patent, the middle part of lever piece 8 can also directly be hinged on this fulcrum.
The first support roller 2, the effect of the second support roller 10 and the 3rd support roller 5 is mainly used for supporting steel-cable and steel rope is tightened, as a kind of concrete embodiment, the 3rd support roller 5 is positioned at a side of the first support roller 2 and second support roller 10 lines of centres, the first support roller 2 is parallel with the moving direction of steel rope with second support roller 10 lines of centres, the 3rd support roller 5 is between the first support roller 2 and the second support roller 10, steel rope just can be as shown in Figure 2 like this, one side is supported on the first support roller 2 and the second support roller 10, opposite side is withstood by the 3rd support roller 5, thereby steel rope is tightened.
Because this fender guard is placed in bottom cut board; the parts such as limit switch 7, lever piece 8 are damaged by pressure when preventing that bottom cut board from being trampled; can be provided with stay bearing plate 4 in the surrounding of limit switch 7, lever piece 8, pressure spring 6, the upper surface of stay bearing plate 4 should be higher than the upper surface of limit switch 7.In Fig. 1, the surrounding of limit switch 7, lever piece 8, pressure spring 6 is provided with five stay bearing plates 4 altogether.
As shown in Figure 2, this fender guard in use, steel rope 12 is successively by the first support roller 2, the 3rd support roller 5 and the second support roller 10, steel rope 12 is tauted, when getting loose appears in steel rope 12, when fracture, under the effect of pressure spring 6, lever piece 8 stressed by lack of equilibrium, lever piece 8 will outwards move under the elastic force effect at pressure spring 6 with one end of the 3rd support roller 5, its other end away from holddown spring 6 can move inward and act on limit switch 7, limit switch 7 actions make control circuit power-off, avoiding elevator to continue action threatens to vehicle maintenance and repair personnel personal safety, therefore this device can effectively ensure vehicle maintenance and repair personnel's personal safety, make equipment become more safe and reliable.So the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (6)
1. a queen post lifting machine fender guard; it is characterized in that: it comprises a limit mounting assembly; described limit mounting assembly is provided with the first support roller, the second support roller and the 3rd support roller; described the 3rd support roller is connected with one end of lever piece; the other end of described lever piece is relative with a limit-switch positions; the middle part of described lever piece is supported on a fulcrum; one end of the lever piece being connected with described the 3rd support roller is also connected with a pressure spring, and described limit switch is connected with the control circuit of queen post lifting machine.
2. queen post lifting machine fender guard according to claim 1; it is characterized in that: described the 3rd support roller is positioned at a side of described the first support roller, the second support roller line of centres, described the 3rd support roller is between described the first support roller, the second support roller.
3. queen post lifting machine fender guard according to claim 1, is characterized in that: the surrounding of described limit switch, lever piece, pressure spring is provided with stay bearing plate.
4. queen post lifting machine fender guard according to claim 1, is characterized in that: described support roller is arranged on anchor shaft, described support roller be provided with outer ring needle bearing interior week.
5. queen post lifting machine fender guard according to claim 1, is characterized in that: the middle part of described lever piece is provided with a curve, and described fulcrum is a pivot shaft, and described pivot shaft is supported on described curve.
6. queen post lifting machine fender guard according to claim 1, is characterized in that: the middle part of described lever piece and described point articulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106301.8U CN203807097U (en) | 2014-03-10 | 2014-03-10 | Protection device of double-column lifting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106301.8U CN203807097U (en) | 2014-03-10 | 2014-03-10 | Protection device of double-column lifting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203807097U true CN203807097U (en) | 2014-09-03 |
Family
ID=51445882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420106301.8U Expired - Fee Related CN203807097U (en) | 2014-03-10 | 2014-03-10 | Protection device of double-column lifting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203807097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348927A (en) * | 2021-12-09 | 2022-04-15 | 科捷智能科技股份有限公司 | Overweight detection method |
-
2014
- 2014-03-10 CN CN201420106301.8U patent/CN203807097U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114348927A (en) * | 2021-12-09 | 2022-04-15 | 科捷智能科技股份有限公司 | Overweight detection method |
| CN114348927B (en) * | 2021-12-09 | 2024-04-16 | 科捷智能科技股份有限公司 | Overweight detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20170310 |