CN203080895U - Anti-dropping device of lift type scaffold - Google Patents
Anti-dropping device of lift type scaffold Download PDFInfo
- Publication number
- CN203080895U CN203080895U CN 201320063062 CN201320063062U CN203080895U CN 203080895 U CN203080895 U CN 203080895U CN 201320063062 CN201320063062 CN 201320063062 CN 201320063062 U CN201320063062 U CN 201320063062U CN 203080895 U CN203080895 U CN 203080895U
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- fall
- gear
- latch
- hole
- guide rail
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Abstract
An anti-dropping device of a lift type scaffold comprises a supporting base, an anti-dropping gear, a wheel shaft, an anti-dropping plug pin and a guide rail. The wheel shaft is installed on the supporting base and is provided with a pin hole, and the anti-dropping plug pin is plugged in the pin hole. The guide rail drives the anti-dropping gear to rotate. A plurality of protrusions are evenly arranged in a gear hole. The bottom ends of the plurality of protrusions are located on the circumference of a first inner circle. The tops of the plurality of protrusions are located on the circumference of a second inner circle. A flange and a concave part are arranged on one side of each protrusion, and the concave parts are tangent with the circumference of the first inner circle. The flanges are tangent with the circumference of the second inner circle. The flanges are connected with the concave parts in a smooth mode. A curved surface which extends from the top end towards the lower end of each protrusion in a smooth mode is arranged on the other side of each protrusion. The bottom ends of the curved surfaces are tangent with the circumference of the first inner circle. The anti-dropping plug pin is plugged in the pin hole. A convex portion and a concave portion are arranged on one side, opposite to the flanges, of the top of the anti-dropping plug pin. The convex portion is arranged at the top and is in smooth connection with the concave portion. The anti-dropping device of the lift type scaffold is simple in structure, high in reliability and safety, and low in manufacturing cost.
Description
Technical field
The utility model relates to the realm of building construction, particularly relates to the falling proof device of the raise scaffold that is used for construction site.
Background technology
Raise scaffold is a kind of construction equipment that is used for high-rise and construction of super highrise building scene.Raise scaffold mainly comprises fixed mount, crane, positioning component and draw-gear etc., crane is installed on fixed mount and can carries out lifting along fixed mount, fixed mount is fixed in the job site, be used to carry crane and keep the stable of crane, draw-gear is used to draw the crane rising or drops to predeterminated position, and adopts positioning component that crane relative fixed frame is located.Before the rising of carrying out crane or undercarriage, must discharge positioning component earlier, therefore crane is carried on draw-gear fully, in case draw-gear fault or drag rope fracture, crane just can fall fast, cause the damage of equipment such as raise scaffold, even can produce serious accidents involving serious consequences such as casualties.In order to reduce potential safety hazard, can be equipped with anti-fall assembly for raise scaffold, but traditional anti-fall modular construction is complicated, component such as spring are more, in case a damage of components in the component such as spring just can cause the malfunctioning of anti-fall assembly, the reliability and security of use is lower, and, complicated structure has increased the manufacturing cost of anti-fall assembly, is unfavorable for the popularization and the use in market.
In sum, raise scaffold in use has potential safety hazard, and traditional anti-fall modular construction complexity, reliability and security is lower, and manufacturing cost is higher, is unfavorable for the popularization and the use in market.
The utility model content
Based on this, be necessary at traditional anti-fall modular construction complexity, reliability and security is lower and the manufacturing cost problem of higher, and a kind of falling proof device of simple in structure, reliability and security is higher and manufacturing cost is lower raise scaffold is provided.
A kind of falling proof device of raise scaffold comprises bearing, anti-fall gear, wheel shaft, anti-fall latch and guide rail, and described anti-fall gear has gear hole, and described anti-fall gear is sheathed on described wheel shaft by described gear hole, and described wheel shaft is installed on described bearing; Described wheel shaft has pin-and-hole, and described anti-fall latch is inserted in described pin-and-hole; Described guide rail has the block of a plurality of even settings, and when described guide rail slided, described block promoted the gear teeth of described anti-fall gear, drives described anti-fall gear and rotates; Be provided with a plurality of projectioies in the described gear hole uniformly, the bottom of described a plurality of projectioies is positioned at the circumference at the first circle place, the top of described a plurality of projectioies is positioned at the circumference at the second circle place, the internal diameter of circle is greater than the internal diameter of the described second interior circle in described first, one side of described a plurality of projectioies has flange and depression, described depression is tangential on the circumference of circle in described first, described flange is tangential on the circumference of circle in described second, described flange and described depression smooth connection, the opposite side of described a plurality of projectioies is the curved surface that smoothly extends to low side from the top of described projection, and the bottom of described curved surface is tangential on the circumference of circle in described first; Described anti-fall latch activity is inserted in described pin-and-hole, the length of described anti-fall latch is less than the internal diameter of the described first interior internal diameter of justifying greater than the described second interior circle, the top of a described anti-fall latch side of described flange in opposite directions has protuberance and recess, described protuberance top set is provided with, described protuberance and described recess smooth connection, the middle part that is connected to described anti-fall latch that the bottom of a described anti-fall latch and described flange side in opposite directions is level and smooth from the bottom of described anti-fall latch.
Therein among embodiment, the middle part that is connected to described anti-fall latch that the top of a described anti-fall latch and described curved surface side in opposite directions is level and smooth from the top of described anti-fall latch, the bottom of a described anti-fall latch and described curved surface side in opposite directions has breach.
Among embodiment, described anti-fall gear has five gear teeth, is provided with five projectioies in the described gear hole therein.
Therein among embodiment, described anti-fall latch has the U type groove that extends to the top from the bottom, described pin-and-hole has been disposed radially crossbeam, the degree of depth of described U type groove is greater than the height of described crossbeam, when described anti-fall latch was installed on described pin-and-hole, described anti-fall latch fell to the top that described crossbeam is supported in described U type groove.
Therein among embodiment, described bearing comprises two base plates, two side shields, cover plate, backboard, cover in two steel bushings and two, described two side shields are installed on described two base plates respectively, described backboard is installed between described two base plates and is connected described two side shields, described cover plate is installed on the top of described backboard and described two side shields, described two side shields have axle hole respectively, cover is fixed in the inboard of described two side shields in described two, described two steel bushings are fixed in the outside of described two side shields, cover in described two, described two steel bushings and described axle hole are coaxial, and described wheel shaft passes cover in described two respectively, two steel bushings and described axle holes also are riveted on described two steel bushings.
Therein among embodiment, described bearing also comprises two clamping plates, described two clamping plates is held on the both sides of described guide rail and is installed on described two side shields, described two clamping plates has roller, described guide rail has race, described roller stretches into described race, and when described guide rail moved, described roller rolled along described race.
Therein among embodiment, the falling proof device of described raise scaffold also comprises the off-load support, the top that is installed on described bearing is supported in described off-load, described off-load is supported and is comprised sleeve pipe and supporting component, described sleeve pipe is installed on the top of described bearing, described supporting component is sheathed on described sleeve pipe and can rotates along described sleeve pipe, described supporting component has supporter, described supporting component turns to described supporter when described guide rail, and described guide rail can be carried on described supporter by described block.
The falling proof device of above-mentioned raise scaffold, when draw-gear fault or drag rope fracture, when crane falls fast, guide rail drives anti-fall gear quick rotation, when projection is changeed low side through anti-fall latch, the flange of projection contacts the bottom of anti-fall latch at first, anti-fall latch is subjected to clashing into rapid rising, so that the engaging of the protuberance of anti-fall latch and another protruding recess, thereby stuck anti-fall gear, stop anti-fall gear further to rotate,, improved reliability and security greatly to avoid the further whereabouts of crane.In addition, the falling proof device of the raise scaffold of present embodiment, simple in structure, manufacturing cost is lower, helps the popularization and the use in market.
Description of drawings
Fig. 1 is the application state schematic diagram of falling proof device of the raise scaffold of an embodiment;
The schematic diagram of the falling proof device of raise scaffold when Fig. 2 is the crane inactive state;
The schematic diagram of the falling proof device of raise scaffold when Fig. 3 is the crane mobile status;
Fig. 4 is an angle schematic diagram of the falling proof device of Fig. 1 raise scaffold;
Fig. 5 is an angle schematic diagram of the anti-fall gear of the falling proof device of raise scaffold among Fig. 1;
Fig. 6 is an angle schematic diagram of the anti-fall latch of the falling proof device of raise scaffold among Fig. 1;
Fig. 7 is another angle schematic diagram of the anti-fall latch of the falling proof device of raise scaffold among Fig. 1;
Fig. 8 is the schematic diagram of the wheel shaft of the falling proof device of raise scaffold among Fig. 1;
Fig. 9 is installed on the state diagram of wheel shaft for the anti-fall latch of the falling proof device of raise scaffold among Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in the figure, in one embodiment, a kind of falling proof device 100 of raise scaffold comprises bearing 110, anti-fall gear 120, wheel shaft 130, anti-fall latch 140 and guide rail 150.
When anti-fall gear 120 is installed, make the flange 1261 of projection 126 drive the direction that anti-fall gear 120 rotates with depression 1263 guide rail 150 when crane 60 falls, when anti-fall latch 140 was inserted in pin-and-hole 132, the bottom of anti-fall latch 140 extended beyond the pin-and-hole 132.In crane 60 uphill process, the bottom that projection 126 is changeed through anti-fall latch 140, projection 126 begins to hold anti-fall latch 140 from curved surface 128, anti-fall latch 140 rises to the top of projection 126 along curved surface 128, fall to minimum point through anti-fall latch 140 behind the top of projection 126, wait for the next protruding warp that changes.In rotation process, the top of anti-fall latch 140 all is sides that contact from the curved surface 128 of projection 126 with low side, and resistance is less, can be not stuck, so crane 60 can rise smoothly.In case draw-gear fault or drag rope fracture, when crane 60 falls fast, guide rail 150 drives anti-fall gear 120 quick rotation in the opposite direction, when projection 126 is changeed low side through anti-fall latch 140, the flange 1261 of projection 126 contacts the bottom of anti-fall latch 140 at first, anti-fall latch 140 is subjected to clashing into rapid rising, so that protuberance 142 engagings and another protruding recess of anti-fall latch 140, thereby stuck anti-fall gear 120, stop anti-fall gear further to rotate, to avoid the further whereabouts of crane 60.In crane 60 decline processes slowly, projection 126 flange 1261 promotes anti-fall latch 140 and rises earlier, after descend slowly again, the protuberance 142 of anti-fall latch 140 can not engage with another protruding recess, so crane 60 can be finished normal whereabouts.
In the present embodiment, the falling proof device 100 of raise scaffold also comprises off-load support 160.Off-load support 160 is installed on the top of bearing 110.Off-load is supported 160 and is comprised sleeve pipe 162 and supporting component 164.Sleeve pipe 162 is installed on the top of bearing 110, and supporting component 164 is sheathed on sleeve pipe 162 and can rotates along sleeve pipe 162.Supporting component 164 has supporter 1642, and supporting component 164 turns to supporter 1642 when guide rail 150, and guide rail 150 can be carried on supporter 1642 by block 152.When crane 60 rises to certain altitude, can be by supporter 1642 carrying cranes 60.
The falling proof device 100 of above-mentioned raise scaffold, when draw-gear fault or drag rope fracture, when crane 60 falls fast, guide rail 150 drives anti-fall gear 120 quick rotation, when projection 126 is changeed low side through anti-fall latch 140, the flange 1261 of projection 126 contacts the bottom of anti-fall latch 140 at first, anti-fall latch 140 is subjected to clashing into rapid rising, so that protuberance 142 engagings and another protruding recess of anti-fall latch 140, thereby stuck anti-fall gear 120, stop anti-fall gear further to rotate,, improved reliability and security greatly to avoid the further whereabouts of crane 60.In addition, the falling proof device 100 of the raise scaffold of present embodiment, simple in structure, manufacturing cost is lower, helps the popularization and the use in market.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (7)
1. the falling proof device of a raise scaffold, it is characterized in that comprise bearing, anti-fall gear, wheel shaft, anti-fall latch and guide rail, described anti-fall gear has gear hole, described anti-fall gear is sheathed on described wheel shaft by described gear hole, and described wheel shaft is installed on described bearing; Described wheel shaft has pin-and-hole, and described anti-fall latch is inserted in described pin-and-hole; Described guide rail has the block of a plurality of even settings, and when described guide rail slided, described block promoted the gear teeth of described anti-fall gear, drives described anti-fall gear and rotates; Be provided with a plurality of projectioies in the described gear hole uniformly, the bottom of described a plurality of projectioies is positioned at the circumference at the first circle place, the top of described a plurality of projectioies is positioned at the circumference at the second circle place, the internal diameter of circle is greater than the internal diameter of the described second interior circle in described first, one side of described a plurality of projectioies has flange and depression, described depression is tangential on the circumference of circle in described first, described flange is tangential on the circumference of circle in described second, described flange and described depression smooth connection, the opposite side of described a plurality of projectioies is the curved surface that smoothly extends to low side from the top of described projection, and the bottom of described curved surface is tangential on the circumference of circle in described first; Described anti-fall latch activity is inserted in described pin-and-hole, the length of described anti-fall latch is less than the internal diameter of the described first interior internal diameter of justifying greater than the described second interior circle, the top of a described anti-fall latch side of described flange in opposite directions has protuberance and recess, described protuberance top set is provided with, described protuberance and described recess smooth connection, the middle part that is connected to described anti-fall latch that the bottom of a described anti-fall latch and described flange side in opposite directions is level and smooth from the bottom of described anti-fall latch.
2. the falling proof device of raise scaffold according to claim 1, it is characterized in that, the middle part that is connected to described anti-fall latch that the top of a described anti-fall latch and described curved surface side in opposite directions is level and smooth from the top of described anti-fall latch, the bottom of a described anti-fall latch and described curved surface side in opposite directions has breach.
3. the falling proof device of raise scaffold according to claim 1 is characterized in that, described anti-fall gear has five gear teeth, is provided with five projectioies in the described gear hole.
4. the falling proof device of raise scaffold according to claim 1, it is characterized in that, described anti-fall latch has the U type groove that extends to the top from the bottom, described pin-and-hole has been disposed radially crossbeam, the degree of depth of described U type groove is greater than the height of described crossbeam, when described anti-fall latch was installed on described pin-and-hole, described anti-fall latch fell to the top that described crossbeam is supported in described U type groove.
5. the falling proof device of raise scaffold according to claim 1, it is characterized in that, described bearing comprises two base plates, two side shields, cover plate, backboard, cover in two steel bushings and two, described two side shields are installed on described two base plates respectively, described backboard is installed between described two base plates and is connected described two side shields, described cover plate is installed on the top of described backboard and described two side shields, described two side shields have axle hole respectively, cover is fixed in the inboard of described two side shields in described two, described two steel bushings are fixed in the outside of described two side shields, cover in described two, described two steel bushings and described axle hole are coaxial, and described wheel shaft passes cover in described two respectively, two steel bushings and described axle holes also are riveted on described two steel bushings.
6. the falling proof device of raise scaffold according to claim 5, it is characterized in that, described bearing also comprises two clamping plates, described two clamping plates is held on the both sides of described guide rail and is installed on described two side shields, described two clamping plates has roller, and described guide rail has race, and described roller stretches into described race, when described guide rail moved, described roller rolled along described race.
7. the falling proof device of raise scaffold according to claim 1, it is characterized in that, the falling proof device of described raise scaffold also comprises the off-load support, the top that is installed on described bearing is supported in described off-load, described off-load is supported and is comprised sleeve pipe and supporting component, described sleeve pipe is installed on the top of described bearing, described supporting component is sheathed on described sleeve pipe and can rotates along described sleeve pipe, described supporting component has supporter, described supporting component turns to described supporter when described guide rail, and described guide rail can be carried on described supporter by described block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320063062 CN203080895U (en) | 2013-02-04 | 2013-02-04 | Anti-dropping device of lift type scaffold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320063062 CN203080895U (en) | 2013-02-04 | 2013-02-04 | Anti-dropping device of lift type scaffold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203080895U true CN203080895U (en) | 2013-07-24 |
Family
ID=48826746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320063062 Withdrawn - After Issue CN203080895U (en) | 2013-02-04 | 2013-02-04 | Anti-dropping device of lift type scaffold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203080895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114714A (en) * | 2013-02-04 | 2013-05-22 | 嘉兴平翔建筑工程设备有限公司 | Anti-falling device of lifting-type scaffold |
| CN104818839A (en) * | 2015-05-11 | 2015-08-05 | 江苏省华建建设股份有限公司 | Falling preventing device of lifting type scaffold |
-
2013
- 2013-02-04 CN CN 201320063062 patent/CN203080895U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114714A (en) * | 2013-02-04 | 2013-05-22 | 嘉兴平翔建筑工程设备有限公司 | Anti-falling device of lifting-type scaffold |
| CN104818839A (en) * | 2015-05-11 | 2015-08-05 | 江苏省华建建设股份有限公司 | Falling preventing device of lifting type scaffold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20141203 |
|
| RGAV | Abandon patent right to avoid regrant |